0.18.0

Let's be very explicit about updating these. They are very critical to
the build process, so we should always read the changelogs / commit log
before upgrading.

.github/ISSUE_TEMPLATE.md

@@ -1,4 +1,6 @@
-**What version of WebTorrent Desktop?**
+<!-- DO NOT POST LINKS OR REFERENCES TO COPYRIGHTED CONTENT IN YOUR ISSUE. -->
+
+**What version of WebTorrent Desktop?** (See the 'About WebTorrent' menu)
 
 **What operating system and version?**
 

.gitignore

@@ -1,2 +1,4 @@
-node_modules
-dist
+node_modules/
+build/
+dist/
+npm-debug.log*

.travis.yml

@@ -1,4 +1,4 @@
 language: node_js
 node_js:
   - 'node'
-install: npm install standard
+install: npm install standard depcheck walk-sync

AUTHORS.md

@@ -2,14 +2,37 @@
 
 #### Ordered by first contribution.
 
-- Feross Aboukhadijeh <feross@feross.org>
-- DC <dcposch@dcpos.ch>
-- Nate Goldman <nate@ngoldman.me>
-- Chris Morris <chris@chrismorris.org>
-- Giuseppe Crinò <giuscri@gmail.com>
-- Romain Beaumont <romain.rom1@gmail.com>
-- Dan Flettre <fletd01@yahoo.com>
-- Liam Gray <liam.r.gray@gmail.com>
-- grunjol <grunjol@argenteam.net>
+- Feross Aboukhadijeh (feross@feross.org)
+- DC (dcposch@dcpos.ch)
+- Nate Goldman (nate@ngoldman.me)
+- Chris Morris (chris@chrismorris.org)
+- Giuseppe Crinò (giuscri@gmail.com)
+- Romain Beaumont (romain.rom1@gmail.com)
+- Dan Flettre (fletd01@yahoo.com)
+- Liam Gray (liam.r.gray@gmail.com)
+- Rémi Jouannet (remijouannet@users.noreply.github.com)
+- Evan Miller (miller.evan815@gmail.com)
+- Alex (alxmorais8@msn.com)
+- Diego Rodríguez Baquero (diegorbaquero@gmail.com)
+- Karlo Luis Martinez Martos (karlo.luis.m@gmail.com)
+- gabriel (furstenheim@gmail.com)
+- Rolando Guedes (rolando.guedes@3gnt.net)
+- Benjamin Tan (demoneaux@gmail.com)
+- Mathias Rasmussen (mathiasvr@gmail.com)
+- Sergey Bargamon (sergey@bargamon.ru)
+- Thomas Watson Steen (w@tson.dk)
+- anonymlol (anonymlol7@gmail.com)
+- Gediminas Petrikas (gedas18@gmail.com)
+- Alberto Miranda (codealchemist@gmail.com)
+- Adam Gotlib (gotlib.adam+dev@gmail.com)
+- Rémi Jouannet (remijouannet@gmail.com)
+- Andrea Tupini (tupini07@gmail.com)
+- grunjol (grunjol@gmail.com)
+- Jason Kurian (jasonk92@gmail.com)
+- Vamsi Krishna Avula (vamsi_ism@outlook.com)
+- Noam Okman (noamokman@gmail.com)
+- PurgingPanda (t3ch0wn3r@gmail.com)
+- Kai Curtis (morecode@kcurtis.com)
+- Omri Litov (omrilitov@gmail.com)
 
 #### Generated by bin/update-authors.sh.

CHANGELOG.md

@@ -1,37 +1,419 @@
 # WebTorrent Desktop Version History
 
+## v0.18.0
+
+### Added
+- Add a new "Transfers" menu for pausing or resuming all torrents (#1027)
+
+### Changed
+- Update Electron to 1.4.15
+  - Windows 32-bit: App can use 4GB of memory instead of just 2GB
+  - Fix "Portable App" writing crash reports to "%APPDATA%\Temp" (Windows)
+- Updated WebTorrent engine to 0.98.5
+  - Fix issue where http web seeds would sometimes stall
+  - Don't send 'completed' event to tracker again if torrent is already complete
+  - Add more peer ID entropy
+  - Set user-agent header for tracker http requests
+
+### Fixed
+- Fix paste shortcut in tracker list on Create Torrent page (#1112)
+- Auto-focus the 'OK' button in modal dialogs (#1058)
+- Fix formatting issue in the speed stats on the Player page (#1039)
+
+## v0.17.2 - 2016-10-10
+
+### Fixed
+- Windows: Fix impossible-to-delete "Wired CD" default torrent
+- Throttle browser-window 'move' and 'resize' events
+- Fix crash ("Cannot read property 'files' of null" error)
+- Fix crash ("TypeError: Cannot read property 'startPiece' of undefined")
+
+## v0.17.1 - 2016-10-03
+
+### Changed
+- Faster startup (improved by ~25%)
+- Update Electron to 1.4.2
+- Remove support for pasting multiple newline-separated magnet links
+- Reduce UX sound volume
+
+### Fixed
+- Fix external player (VLC, etc.) opening before HTTP server was ready
+- Windows (Portable App): Fix "Portable App" mode
+  - Write application support files to the "Portable Settings" folder
+  - Stop writing Electron "single instance" lock file to "%APPDATA%\Roaming\WebTorrent"
+  - Some temp data is still written to "%APPDATA%\Temp" (will be fixed in future version)
+- Don't show pointer cursor on torrent list checkbox
+- Trim extra whitespace from magnet links pasted into "Open Torrent Address" dialog
+- Fix weird outline on 'Create Torrent' button
+
+## v0.17.0 - 2016-09-23
+
+### Added
+- Remember window size and position
+
+### Changed
+- Torrent list redesign
+- Quieter, more subtle sounds
+- Got rid of the play button spinner, now goes to the player immediately
+- Faster startup
+
+### Fixed
+- Fix bug where playback rate could go negative
+- Don't hide header when moused over player controls
+- Fix Delete Data File on Windows
+- Fix a sad, sad bug that resulted in 100+ MB config files
+- Fix app DMG background image
+
+## v0.16.0 - 2016-09-18
+
+### Added
+- **Windows 64-bit support!** ([#931](https://github.com/feross/webtorrent-desktop/pull/931))
+  - Existing 32-bit users will update to 64-bit automatically in next release
+  - 64-bit reduces likelihood of out-of-memory errors by increasing the address space
+
+### Fixed
+- Mac: Fix background image on .DMG
+
+## v0.15.0 - 2016-09-16
+
+### Added
+- Option to start automatically on login
+- Add integration tests
+- Add more detailed telemetry to diagnose "buffer allocation failed"
+
+### Changed
+- Disable playback controls while in external player (#909)
+
+### Fixed
+- Fix several uncaught errors (#889, #891, #892)
+- Update to the latest webtorrent.js, fixing some more uncaught errors
+- Clicking on the "torrent finished" notification works again (#912)
+
+## v0.14.0 - 2016-09-03
+
+### Added
+- Autoplay through all files in a torrent (#871)
+- Torrents now have a progress bar (#844)
+
+### Changed
+- Modals now use Material UI
+- Torrent list style improvements
+
+### Fixed
+- Fix App.js crash in Linux (#882)
+- Fix error on Windows caused by `setBadge` (#867)
+- Don't crash when restarting after adding a magnet link (#869)
+- Restore playback state when reopening player (#877)
+
+## v0.13.1 - 2016-08-31
+
+### Fixed
+- Fixed the Create Torrent page
+
+## v0.13.0 - 2016-08-31
+
+### Added
+- Support .m4a audio
+- Better telemetry: log error versions, report more types of errors
+
+### Changed
+- New look - Material UI. Rewrote Create Torrent and Preferences pages.
+
+### Fixed
+- Fixed telemetry [object Object] and [object HTMLMediaElement] bugs
+- Don't render player controls when playing externally, eg in VLC
+- Don't play notification sounds during media playback
+
+## v0.12.0 - 2016-08-23
+
+### Added
+- Custom external media player
+- Linux: add system-wide launcher and icons for Debian, including Ubuntu
+
+### Changed
+- Telemetry improvements: redact stacktraces, log app version
+
+### Fixed
+- Fix playback and download of default torrents ("missing path" error) (#804)
+- Fix Delete Torrent + Data for newly added magnet links
+- Fix jumpToTime error (#804)
+
+## v0.11.0 - 2016-08-19
+
+### Added
+- New Preference to "Set WebTorrent as default handler for torrents and magnet links" (#771)
+- New Preference to "Always play in VLC" (#674)
+- Check for missing default download path and torrent folders on start up (#776)
+
+### Changed
+- Do not automatically set WebTorrent as the default handler for torrents (#771)
+- Torrents can only be created from the home screen (#770)
+- Update Electron to 1.3.3 (#772)
+
+### Fixed
+- Allow modifying the default tracker list on the Create Torrent page (#775)
+- Prevent opening multiple stacked Preference windows or Create Torrent windows (#770)
+- Windows: Player window auto-resize does not match video aspect ratio (#565)
+- Missing page title on Create Torrent page
+
+## v0.10.0 - 2016-08-05
+
+### Added
+- Drag-and-drop magnet links (selected text) is now supported (#284)
+- Windows: Add "User Tasks" shortcuts to app icon in Start Menu (#114)
+- Linux: Show badge count for completed torrent downloads
+
+### Changed
+- Change WebTorrent Desktop peer ID prefix to 'WD' to distinguish from WebTorrent in the browser, 'WW' (#688)
+- Switch UI to React to improve UI rendering speed (#729)
+  - The primary bottleneck was actually `hyperx`, not `virtual-dom`.
+- Update Electron to 1.3.2 (#738) (#739) (#740) (#747) (#756)
+  - Mac 10.9: Fix the fullscreen button showing
+  - Mac 10.9: Fix window having border
+  - Mac 10.9: Fix occasional crash
+  - Mac: Update Squirrel.Mac to 0.2.1 (fixes situations in which updates would not get applied)
+  - Mac: Fix window not showing in Window menu
+  - Mac: Fix context menu always choosing first item by default
+  - Linux: Fix startup crashes (some Linux distros)
+  - Linux: Fix menubar not hiding after entering fullscreen (some Linux distros)
+- Improved location history (back/forward buttons) to fix rare exceptions (#687) (#748)
+  - Location history abstraction released independently as [`location-history`](https://www.npmjs.com/package/location-history)
+
+### Fixed
+- When streaming to VLC, set VLC window title to torrent file name (#746)
+- Fix "Cannot read property 'numPiecesPresent' of undefined" exception (#695)
+- Fix rare case where config file could not be completely written (#733)
+
+## v0.9.0 - 2016-07-20
+
+### Added
+- Save selected subtitles
+- Ask for confirmation before deleting torrents
+- Support Debian Jessie
+
+### Changed
+- Only send telemetry in production
+- Clean up the code. Split main.js, refactor lots of things
+
+### Fixed
+- Fix state.playing.jumpToTime behavior
+- Remove torrent file and poster image when deleting a torrent
+
+## v0.8.1 - 2016-06-24
+
+### Added
+- New URI handler: stream-magnet
+
+### Fixed
+- DLNA crashing bug
+
+## v0.8.0 - 2016-06-23
+
+### Added
+- Cast menu: choose which Chromecast, Airplay, or DLNA device you want to use
+- Telemetry: send basic data, plus stats on how often the play button works
+- Make posters from jpeg files, not just jpg
+- Support .wmv video via Play in VLC
+- Windows thumbnail bar with a play/pause button
+
+### Changed
+- Nicer modal styles
+
+### Fixed
+- Windows tray icon now stays in the right state
+
+## v0.7.2 - 2016-06-02
+
+### Fixed
+- Fix exception that affects users upgrading from v0.5.1 or older
+  - Ensure `state.saved.prefs` configuration exists
+- Fix window title on "About WebTorrent" window
+
+## v0.7.1 - 2016-06-02
+
+### Changed
+- Change "Step Forward" keyboard shortcut to `Alt+Left` (Windows)
+- Change "Step Backward" keyboard shortcut to to `Alt+Right` (Windows)
+
+### Fixed
+- First time startup bug -- invalid torrent/poster paths
+
+## v0.7.0 - 2016-06-02
+
+### Added
+- Improved AirPlay support -- using the new [`airplayer`](https://www.npmjs.com/package/airplayer) package
+- Remember volume setting in player, for as long as the app is open
+
+### Changed
+- Add (+) button now also accepts non .torrent files and creates a torrent from
+  those files
+- Show prompt text in title bar for open dialogs (OS X)
+- Upgrade Electron to 1.2.1
+  - Improve window resizing when aspect ratio is enforced (OS X)
+  - Use .ico format for better icon rendering quality (Windows)
+  - Fix crash reporter not working (Windows)
+
+### Fixed
+- Re-enable WebRTC (web peers)! (OS X, Windows)
+  - Windows support was disabled in v0.6.1 to work around a bug in Electron
+  - OS X support was disabled in v0.4.0 to work around a 100% CPU bug
+- Fix subtitle selector radio button UI size glitch
+- Fix race condition causing exeption on app startup
+- Fix duplicate torrent detection in some cases
+- Fix "gray screen" exception caused by incorrect file list order
+- Fix torrent loading message UI misalignment
+
+### Known issues
+- When upgrading to WebTorrent Desktop v0.7.0, some torrent metadata (file list,
+  selected files, whether torrent is streamable) will be cleared. Just start the
+  torrent to re-populate the metadata.
+
+## v0.6.1 - 2016-05-26
+
+### Fixed
+- Disable WebRTC to work around Electron crash (Windows)
+  - Will be re-enabled in the next version of WebTorrent, which will be based on
+    the next version of Electron, where the bug is fixed.
+- Fix crash when updating from WebTorrent 0.5.x in some situtations (#583)
+- Fix crash when dropping files onto the dock icon (OS X)
+- Fix keyboard shortcuts Space and ESC being captured globally (#585)
+- Fix crash, show error when drag-dropping hidden files (#586)
+
+## v0.6.0 - 2016-05-24
+
+### Added
+- Added Preferences page to set Download folder
+- Save video position, resume playback from saved position
+- Add additional video player keyboard shortcuts (#275)
+- Use `poster.jpg` file as the poster image if available (#558)
+- Associate .torrent files to WebTorrent Desktop (OS X) (#553)
+- Add support for pasting `instant.io` links (#559)
+- Add announcement feature
+
+### Changed
+- Nicer player UI
+- Reduce startup jank, improve startup time (#568)
+- Cleanup unsupported codec detection (#569, #570)
+- Cleaner look for the torrent file list
+- Improve subtitle positioning (#551)
+
+### Fixed
+- Fix Uncaught TypeError: Cannot read property 'update' of undefined (#567)
+- Fix bugs in LocationHistory
+  - When player is active, and magnet link is pasted, go back to list
+  - After deleting torrent, remove just the player from forward stack
+  - After creating torrent, remove create torrent page from forward stack
+  - Cancel button on create torrent page should only go back one page
+
+## v0.5.1 - 2016-05-18
+
+### Fixed
+- Fix auto-updater (OS X, Windows).
+
+## v0.5.0 - 2016-05-17
+
+### Added
+- Select/deselect individual files to torrent.
+- Automatically include subtitle files (.srt, .vtt) from torrent in the subtitles menu.
+- "Add Subtitle File..." menu item.
+
+### Changed
+- When manually adding subtitle track(s), always switch to the new track.
+
+### Fixed
+- Magnet links throw exception on app launch. (OS X)
+- Multi-file torrents would not seed in-place, were copied to Downloads folder.
+- Missing 'About WebTorrent' menu item. (Windows)
+- Rare exception. ("Cannot create BrowserWindow before app is ready")
+
+## v0.4.0 - 2016-05-13
+
+### Added
+- Better Windows support!
+  - Windows 32-bit build.
+  - Windows Portable App build.
+  - Windows app signing, for fewer install warnings.
+- Better Linux support!
+  - Linux 32-bit build.
+- Subtitles support!
+  - .srt and .vtt file support.
+  - Drag-and-drop files on video, or choose from file selector.
+  - Multiple subtitle files support.
+- Stream to VLC when the audio codec is unplayable (e.g. AC3, EAC3).
+- "Show in Folder" item in context menu.
+- Volume slider, with mute/unmute button.
+- New "Create torrent" page to modify:
+  - Torrent comment.
+  - Trackers.
+  - Private torrent flag.
+- Use mouse wheel to increase/decrease volume.
+- Bounce the Downloads stack when download completes. (OS X)
+- New default torrent on first launch: The WIRED CD.
+
+### Changed
+- Improve app startup time by 40%.
+- UI tweaks: Reduce font size, reduce torrent list item height.
+- Add Playback menu for playback-related functionality.
+- Fix installing when the app is already installed. (Windows)
+- Don't kill unrelated processes on uninstall. (Windows)
+- Set "sheet offset" correctly for create torrent dialog. (OS X)
+- Remove OS X-style Window menu. (Linux, Windows)
+- Remove "Add Fake Airplay/Chromecast" menu items.
+
+### Fixed
+- Disable WebRTC to fix 100% CPU usage/crashes caused by Chromium issue. This is
+  temporary. (OS X)
+- When fullscreen, make controls use the full window. (OS X)
+- Support creating torrents that contain .torrent files.
+- Block power save while casting to a remote device.
+- Do not block power save when the space key is pressed from the torrent list.
+- Support playing .mpg and .ogv extensions in the app.
+- Fix video centering for multi-screen setups.
+- Show an error when adding a duplicate torrent.
+- Show an error when adding an invalid magnet link.
+- Do not stop music when tabbing to another program (OS X)
+- Properly size the Windows volume mixer icon.
+- Default to the user's OS-defined, localized "Downloads" folder.
+- Enforce minimimum window size when resizing player to prevent window disappearing.
+- Fix rare race condition error on app quit.
+- Don't use zero-byte torrent "poster" images.
+
+Thanks to @grunjol, @rguedes, @furstenheim, @karloluis, @DiegoRBaquero, @alxhotel,
+@AgentEpsilon, @remijouannet, Rolando Guedes, @dcposch, and @feross for contributing
+to this release!
+
+## v0.3.3 - 2016-04-07
+
+### Fixed
+- App icon was incorrect (OS X)
+
 ## v0.3.2 - 2016-04-07
 
 ### Added
-
 - Register WebTorrent as default handler for magnet links (OS X)
 
 ### Changed
-
 - Faster startup time (50ms)
 - Update Electron to 0.37.5
   - Remove the white flash when loading pages and resizing the window
   - Fix crash when sending IPC messages
 
 ### Fixed
-
 - Fix installation bugs with .deb file (Linux)
 - Pause audio reliably when closing the window
+- Enforce minimimum window size when resizing player (for audio-only .mov files, which are 0x0)
 
 ## v0.3.1 - 2016-04-06
 
 ### Added
-
 - Add crash reporter to torrent engine process
 
 ### Fixed
-
 - Fix cast screen background: cover, don't tile
 
 ## v0.3.0 - 2016-04-06
 
 ### Added
-
 - **Ubuntu/Debian support!** (.deb installer)
 - **DLNA streaming support**
 - Add "File > Quit" menu item (Linux)
@@ -39,14 +421,12 @@
 - Crash reporting
 
 ### Changed
-
 - On startup, do not re-verify files when timestamps are unchanged
 - Moved torrent engine to an independent process, for better UI performance
 - Removed media queries (UI resizing based on window width)
 - Improved Chromecast icon, when connected
 
 ### Fixed
-
 - "Download Complete" notification shows consistently
 - Create new torrents and seed them without copying to temporary folder
 - Clicking the "Download Complete" notification will always activate app
@@ -65,7 +445,6 @@ Thanks to @dcposch, @grunjol, and @feross for contributing to this release.
 ## v0.2.0 - 2016-03-29
 
 ### Added
-
 - Minimise to tray (Windows, Linux)
 - Show spinner and download speed when player is stalled waiting for data
 - Highlight window on drag-and-drop
@@ -74,12 +453,10 @@ Thanks to @dcposch, @grunjol, and @feross for contributing to this release.
     Linux users need to download new versions manually.
 
 ### Changed
-
 - Renamed WebTorrent.app to WebTorrent Desktop
 - Add Cosmos Laundromat as a default torrent
 
 ### Fixed
-
 - Only capture media keys when player is active
 - Update WebTorrent to 0.88.1 for performance improvements
   - When seeding, do not proactively connect to new peers

CONTRIBUTING.md

@@ -73,3 +73,23 @@ By making a contribution to this project, I certify that:
   record of the contribution (including all personal information I submit with it,
   including my sign-off) is maintained indefinitely and may be redistributed consistent
   with this project or the open source license(s) involved.
+
+## Smoke Tests
+
+Before a release, check that the following basic use cases work correctly:
+
+1. Click "Play" to stream a built-in torrent (e.g. Sintel)
+  - Ensure that seeking to undownloaded region works and plays immediately.
+  - Ensure that sintel.mp4 gets downloaded to `~/Downloads`.
+
+2. Check that the auto-updater works
+  - Open the console and check for the line "No update available" to indicate
+
+3. Add a new .torrent file via drag-and-drop.
+  - Ensure that it gets added to the list and starts downloading
+
+4. Remove a torrent from the client
+  - Ensure that the file is removed from `~/Downloads`
+
+5. Create and seed a new a torrent via drag-and-drop.
+  - Ensure that the torrent gets created and seeding begins.

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) Feross Aboukhadijeh
+Copyright (c) WebTorrent, LLC
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

README.md

@@ -7,7 +7,7 @@
   <br>
 </h1>
 
-<h4 align="center">The streaming torrent client. For OS X, Windows, and Linux.</h4>
+<h4 align="center">The streaming torrent app. For Mac, Windows, and Linux.</h4>
 
 <p align="center">
   <a href="https://gitter.im/feross/webtorrent"><img src="https://img.shields.io/badge/gitter-join%20chat%20%E2%86%92-brightgreen.svg" alt="Gitter"></a>
@@ -17,31 +17,74 @@
 
 ## Install
 
-**WebTorrent Desktop** is still under very active development. You can download the latest version from the [releases](https://github.com/feross/webtorrent-desktop/releases) page.
+Download the latest version of WebTorrent Desktop from
+[the official website](https://webtorrent.io/desktop/) or the
+[GitHub releases](https://github.com/feross/webtorrent-desktop/releases) page.
 
-## Screenshot
+**WebTorrent Desktop** is under very active development. You can try out the
+current (unstable) development version by cloning the Git repo. See the
+instructions below in the ["How to Contribute"](#how-to-contribute) section.
+
+## Screenshots
 
 <p align="center">
-  <img src="./static/screenshot.png" width="562" height="630" alt="screenshot" align="center">
+  <img src="https://webtorrent.io/img/screenshot-player3.png" alt="screenshot" align="center">
+  <img src="https://webtorrent.io/img/screenshot-main.png" width="612" height="749" alt="screenshot" align="center">
 </p>
 
 ## How to Contribute
 
-### Install dependencies
+### Get the code
 
 ```
+$ git clone https://github.com/feross/webtorrent-desktop.git
+$ cd webtorrent-desktop
 $ npm install
 ```
 
-### Run app
+### Run the app
 
 ```
 $ npm start
 ```
 
-### Package app
+### Watch the code
 
-Builds app binaries for OS X, Linux, and Windows.
+Restart the app automatically every time code changes. Useful during development.
+
+```
+$ npm run watch
+```
+
+### Run linters
+
+```
+$ npm test
+```
+
+### Run integration tests
+
+```
+$ npm run test-integration
+```
+
+The integration tests use Spectron and Tape. They click through the app, taking screenshots and comparing each one to a reference. Why screenshots?
+
+* Ad-hoc checking makes the tests a lot more work to write
+* Even diffing the whole HTML is not as thorough as screenshot diffing. For example, it wouldn't catch an bug where hitting ESC from a video doesn't correctly restore window size.
+* Chrome's own integration tests use screenshot diffing iirc
+* Small UI changes will break a few tests, but the fix is as easy as deleting the offending screenshots and running the tests, which will recreate them with the new look.
+* The resulting Github PR will then show, pixel by pixel, the exact UI changes that were made! Ses https://github.com/blog/817-behold-image-view-modes
+
+For MacOS, you'll need a Retina screen for the integration tests to pass. Your screen should have the same resolution as a 2016 12" Macbook.
+
+For Windows, you'll need Windows 10 with a 1366x768 screen.
+
+When running integration tests, keep the mouse on the edge of the screen and don't touch the mouse or keyboard while the tests are running.
+
+### Package the app
+
+Builds app binaries for Mac, Linux, and Windows.
 
 ```
 $ npm run package
@@ -50,19 +93,34 @@ $ npm run package
 To build for one platform:
 
 ```
-$ npm run package -- [platform] [package-type]
+$ npm run package -- [platform] [options]
 ```
 
-Where `[platform]` is `darwin`, `linux`, or `win32`
+Where `[platform]` is `darwin`, `linux`, `win32`, or `all` (default).
 
-and `[package-type]` is `all` (default), `deb` or `zip` (`linux` platform only)
+The following optional arguments are available:
+
+- `--sign` - Sign the application (Mac, Windows)
+- `--package=[type]` - Package single output type.
+   - `deb` - Debian package
+   - `zip` - Linux zip file
+   - `dmg` - Mac disk image
+   - `exe` - Windows installer
+   - `portable` - Windows portable app
+   - `all` - All platforms (default)
+
+Note: Even with the `--package` option, the auto-update files (.nupkg for Windows,
+*-darwin.zip for Mac) will always be produced.
 
 #### Windows build notes
 
-To package the Windows app from non-Windows platforms, [Wine](https://www.winehq.org/) needs
-to be installed.
+The Windows app can be packaged from **any** platform.
 
-On OS X, first install [XQuartz](http://www.xquartz.org/), then run:
+Note: Windows code signing only works from **Windows**, for now.
+
+Note: To package the Windows app from non-Windows platforms,
+[Wine](https://www.winehq.org/) needs to be installed. For example on Mac, first
+install [XQuartz](http://www.xquartz.org/), then run:
 
 ```
 brew install wine
@@ -70,10 +128,27 @@ brew install wine
 
 (Requires the [Homebrew](http://brew.sh/) package manager.)
 
+#### Mac build notes
+
+The Mac app can only be packaged from **macOS**.
+
+#### Linux build notes
+
+The Linux app can be packaged from **any** platform.
+
+### Privacy
+
+WebTorrent Desktop collects some basic usage stats to help us make the app better.
+For example, we track how well the play button works. How often does it succeed?
+Time out? Show a missing codec error?
+
+The app never sends any personally identifying information, nor does it track which
+torrents you add.
+
 ### Code Style
 
 [![js-standard-style](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)
 
 ## License
 
-MIT. Copyright (c) [Feross Aboukhadijeh](http://feross.org).
+MIT. Copyright (c) [WebTorrent, LLC](https://webtorrent.io).

bin/clean.js

@@ -5,17 +5,28 @@
  * Useful for developers.
  */
 
-var os = require('os')
-var path = require('path')
-var pathExists = require('path-exists')
-var rimraf = require('rimraf')
+const fs = require('fs')
+const os = require('os')
+const path = require('path')
+const rimraf = require('rimraf')
 
-var config = require('../config')
-var handlers = require('../main/handlers')
+const config = require('../src/config')
+const handlers = require('../src/main/handlers')
 
+// First, remove generated files
+rimraf.sync('build/')
+rimraf.sync('dist/')
+
+// Remove any saved configuration
 rimraf.sync(config.CONFIG_PATH)
 
-var tmpPath = path.join(pathExists.sync('/tmp') ? '/tmp' : os.tmpDir(), 'webtorrent')
+// Remove any temporary files
+let tmpPath
+try {
+  tmpPath = path.join(fs.statSync('/tmp') && '/tmp', 'webtorrent')
+} catch (err) {
+  tmpPath = path.join(os.tmpDir(), 'webtorrent')
+}
 rimraf.sync(tmpPath)
 
 // Uninstall .torrent file and magnet link handlers

bin/cmd.js

@@ -1,10 +0,0 @@
-#!/usr/bin/env node
-
-var electron = require('electron-prebuilt')
-var cp = require('child_process')
-var path = require('path')
-
-var child = cp.spawn(electron, [path.join(__dirname, '..')], {stdio: 'inherit'})
-child.on('close', function (code) {
-  process.exit(code)
-})

bin/extra-lint.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+
+const walkSync = require('walk-sync')
+const fs = require('fs')
+const path = require('path')
+
+let hasErrors = false
+
+// Find all Javascript source files
+const files = walkSync('src', {globs: ['**/*.js']})
+console.log('Running extra-lint on ' + files.length + ' files...')
+
+// Read each file, line by line
+files.forEach(function (file) {
+  const filepath = path.join('src', file)
+  const lines = fs.readFileSync(filepath, 'utf8').split('\n')
+
+  lines.forEach(function (line, i) {
+    let error
+
+    // Consistent JSX tag closing
+    if (line.match(/' {2}\/> *$/) ||
+      line.match('[^ ]/> *$') ||
+      line.match(' > *$')) {
+      error = 'JSX tag spacing'
+    }
+
+    // No lines over 100 characters
+    if (line.length > 100) {
+      error = 'Line >100 chars'
+    }
+
+    if (line.match(/^var /) || line.match(/ var /)) {
+      error = 'Use const or let'
+    }
+
+    if (error) {
+      let name = path.basename(file)
+      console.log('%s:%d - %s:\n%s', name, i + 1, error, line)
+      hasErrors = true
+    }
+  })
+})
+
+if (hasErrors) process.exit(1)
+else console.log('Looks good!')

bin/open-config.js

@@ -0,0 +1,6 @@
+#!/usr/bin/env node
+
+const config = require('../src/config')
+const open = require('open')
+
+open(config.CONFIG_PATH)

bin/package.js

@@ -1,76 +1,101 @@
 #!/usr/bin/env node
 
 /**
- * Builds app binaries for OS X, Linux, and Windows.
+ * Builds app binaries for Mac, Windows, and Linux.
  */
 
-var config = require('../config')
-var cp = require('child_process')
-var electronPackager = require('electron-packager')
-var fs = require('fs')
-var path = require('path')
-var pkg = require('../package.json')
-var rimraf = require('rimraf')
+const cp = require('child_process')
+const electronPackager = require('electron-packager')
+const fs = require('fs')
+const minimist = require('minimist')
+const mkdirp = require('mkdirp')
+const os = require('os')
+const path = require('path')
+const rimraf = require('rimraf')
+const series = require('run-series')
+const zip = require('cross-zip')
 
-var BUILD_NAME = config.APP_NAME + '-v' + config.APP_VERSION
+const config = require('../src/config')
+const pkg = require('../package.json')
+
+const BUILD_NAME = config.APP_NAME + '-v' + config.APP_VERSION
+const BUILD_PATH = path.join(config.ROOT_PATH, 'build')
+const DIST_PATH = path.join(config.ROOT_PATH, 'dist')
+
+const argv = minimist(process.argv.slice(2), {
+  boolean: [
+    'sign'
+  ],
+  default: {
+    package: 'all',
+    sign: false
+  },
+  string: [
+    'package'
+  ]
+})
 
 function build () {
-  var platform = process.argv[2]
-  var packageType = process.argv.length > 3 ? process.argv[3] : 'all'
+  rimraf.sync(DIST_PATH)
+  rimraf.sync(BUILD_PATH)
+
+  console.log('Build: Transpiling to ES5...')
+  cp.execSync('npm run build', { NODE_ENV: 'production', stdio: 'inherit' })
+  console.log('Build: Transpiled to ES5.')
+
+  const platform = argv._[0]
   if (platform === 'darwin') {
     buildDarwin(printDone)
   } else if (platform === 'win32') {
     buildWin32(printDone)
   } else if (platform === 'linux') {
-    buildLinux(packageType, printDone)
+    buildLinux(printDone)
   } else {
-    buildDarwin(function (err, buildPath) {
-      printDone(err, buildPath)
-      buildWin32(function (err, buildPath) {
-        printDone(err, buildPath)
-        buildLinux(packageType, printDone)
+    buildDarwin(function (err) {
+      printDone(err)
+      buildWin32(function (err) {
+        printDone(err)
+        buildLinux(printDone)
       })
     })
   }
 }
 
-var all = {
-  // Build 64 bit binaries only.
-  arch: 'x64',
-
-  // The human-readable copyright line for the app.
+const all = {
+  // The human-readable copyright line for the app. Maps to the `LegalCopyright` metadata
+  // property on Windows, and `NSHumanReadableCopyright` on Mac.
   'app-copyright': config.APP_COPYRIGHT,
 
   // The release version of the application. Maps to the `ProductVersion` metadata
-  // property on Windows, and `CFBundleShortVersionString` on OS X.
+  // property on Windows, and `CFBundleShortVersionString` on Mac.
   'app-version': pkg.version,
 
   // Package the application's source code into an archive, using Electron's archive
   // format. Mitigates issues around long path names on Windows and slightly speeds up
   // require().
-  asar: true,
-
-  // A glob expression, that unpacks the files with matching names to the
-  // "app.asar.unpacked" directory.
-  'asar-unpack': 'WebTorrent*',
+  asar: {
+    // A glob expression, that unpacks the files with matching names to the
+    // "app.asar.unpacked" directory.
+    unpack: 'WebTorrent*'
+  },
 
   // The build version of the application. Maps to the FileVersion metadata property on
-  // Windows, and CFBundleVersion on OS X. We're using the short git hash (e.g. 'e7d837e')
-  // Windows requires the build version to start with a number :/ so we stick on a prefix
-  'build-version': '0-' + cp.execSync('git rev-parse --short HEAD').toString().replace('\n', ''),
+  // Windows, and CFBundleVersion on Mac. Note: Windows requires the build version to
+  // start with a number. We're using the version of the underlying WebTorrent library.
+  'build-version': require('webtorrent/package.json').version,
 
   // The application source directory.
   dir: config.ROOT_PATH,
 
   // Pattern which specifies which files to ignore when copying files to create the
   // package(s).
-  ignore: /^\/dist|\/(appveyor.yml|\.appveyor.yml|\.github|appdmg|AUTHORS|CONTRIBUTORS|bench|benchmark|benchmark\.js|bin|bower\.json|component\.json|coverage|doc|docs|docs\.mli|dragdrop\.min\.js|example|examples|example\.html|example\.js|externs|ipaddr\.min\.js|Makefile|min|minimist|perf|rusha|simplepeer\.min\.js|simplewebsocket\.min\.js|static\/screenshot\.png|test|tests|test\.js|tests\.js|webtorrent\.min\.js|\.[^\/]*|.*\.md|.*\.markdown)$/,
+  ignore: /^\/src|^\/dist|\/(appveyor.yml|\.appveyor.yml|\.github|appdmg|AUTHORS|CONTRIBUTORS|bench|benchmark|benchmark\.js|bin|bower\.json|component\.json|coverage|doc|docs|docs\.mli|dragdrop\.min\.js|example|examples|example\.html|example\.js|externs|ipaddr\.min\.js|Makefile|min|minimist|perf|rusha|simplepeer\.min\.js|simplewebsocket\.min\.js|static\/screenshot\.png|test|tests|test\.js|tests\.js|webtorrent\.min\.js|\.[^/]*|.*\.md|.*\.markdown)$/,
 
   // The application name.
   name: config.APP_NAME,
 
   // The base directory where the finished package(s) are created.
-  out: path.join(config.ROOT_PATH, 'dist'),
+  out: DIST_PATH,
 
   // Replace an already existing output directory.
   overwrite: true,
@@ -79,32 +104,40 @@ var all = {
   // "devDependencies" before starting to package the app.
   prune: true,
 
-  // The Electron version with which the app is built (without the leading 'v')
-  version: pkg.dependencies['electron-prebuilt']
+  // The Electron version that the app is built with (without the leading 'v')
+  electronVersion: require('electron/package.json').version
 }
 
-var darwin = {
+const darwin = {
+  // Build for Mac
   platform: 'darwin',
 
-  // The bundle identifier to use in the application's plist (OS X only).
+  // Build x64 binaries only.
+  arch: 'x64',
+
+  // The bundle identifier to use in the application's plist (Mac only).
   'app-bundle-id': 'io.webtorrent.webtorrent',
 
   // The application category type, as shown in the Finder via "View" -> "Arrange by
-  // Application Category" when viewing the Applications directory (OS X only).
+  // Application Category" when viewing the Applications directory (Mac only).
   'app-category-type': 'public.app-category.utilities',
 
-  // The bundle identifier to use in the application helper's plist (OS X only).
+  // The bundle identifier to use in the application helper's plist (Mac only).
   'helper-bundle-id': 'io.webtorrent.webtorrent-helper',
 
   // Application icon.
   icon: config.APP_ICON + '.icns'
 }
 
-var win32 = {
+const win32 = {
+  // Build for Windows.
   platform: 'win32',
 
+  // Build ia32 and x64 binaries.
+  arch: ['ia32', 'x64'],
+
   // Object hash of application metadata to embed into the executable (Windows only)
-  'version-string': {
+  win32metadata: {
 
     // Company that produced the file.
     CompanyName: config.APP_NAME,
@@ -130,8 +163,12 @@ var win32 = {
   icon: config.APP_ICON + '.ico'
 }
 
-var linux = {
-  platform: 'linux'
+const linux = {
+  // Build for Linux.
+  platform: 'linux',
+
+  // Build ia32 and x64 binaries.
+  arch: ['ia32', 'x64']
 
   // Note: Application icon for Linux is specified via the BrowserWindow `icon` option.
 }
@@ -139,19 +176,19 @@ var linux = {
 build()
 
 function buildDarwin (cb) {
-  var plist = require('plist')
+  const plist = require('plist')
 
+  console.log('Mac: Packaging electron...')
   electronPackager(Object.assign({}, all, darwin), function (err, buildPath) {
     if (err) return cb(err)
+    console.log('Mac: Packaged electron. ' + buildPath)
 
-    var appPath = path.join(buildPath[0], config.APP_NAME + '.app')
-    var contentsPath = path.join(appPath, 'Contents')
-    var resourcesPath = path.join(contentsPath, 'Resources')
-    var infoPlistPath = path.join(contentsPath, 'Info.plist')
-    var infoPlist = plist.parse(fs.readFileSync(infoPlistPath, 'utf8'))
+    const appPath = path.join(buildPath[0], config.APP_NAME + '.app')
+    const contentsPath = path.join(appPath, 'Contents')
+    const resourcesPath = path.join(contentsPath, 'Resources')
+    const infoPlistPath = path.join(contentsPath, 'Info.plist')
+    const infoPlist = plist.parse(fs.readFileSync(infoPlistPath, 'utf8'))
 
-    // TODO: Use new `extend-info` and `extra-resource` opts to electron-packager,
-    // available as of v6.
     infoPlist.CFBundleDocumentTypes = [
       {
         CFBundleTypeExtensions: [ 'torrent' ],
@@ -176,6 +213,31 @@ function buildDarwin (cb) {
         CFBundleURLIconFile: path.basename(config.APP_FILE_ICON) + '.icns',
         CFBundleURLName: 'BitTorrent Magnet URL',
         CFBundleURLSchemes: [ 'magnet' ]
+      },
+      {
+        CFBundleTypeRole: 'Editor',
+        CFBundleURLIconFile: path.basename(config.APP_FILE_ICON) + '.icns',
+        CFBundleURLName: 'BitTorrent Stream-Magnet URL',
+        CFBundleURLSchemes: [ 'stream-magnet' ]
+      }
+    ]
+
+    infoPlist.UTExportedTypeDeclarations = [
+      {
+        UTTypeConformsTo: [
+          'public.data',
+          'public.item',
+          'com.bittorrent.torrent'
+        ],
+        UTTypeDescription: 'BitTorrent Document',
+        UTTypeIconFile: path.basename(config.APP_FILE_ICON) + '.icns',
+        UTTypeIdentifier: 'org.bittorrent.torrent',
+        UTTypeReferenceURL: 'http://www.bittorrent.org/beps/bep_0000.html',
+        UTTypeTagSpecification: {
+          'com.apple.ostype': 'TORR',
+          'public.filename-extension': [ 'torrent' ],
+          'public.mime-type': 'application/x-bittorrent'
+        }
       }
     ]
 
@@ -185,152 +247,350 @@ function buildDarwin (cb) {
     cp.execSync(`cp ${config.APP_FILE_ICON + '.icns'} ${resourcesPath}`)
 
     if (process.platform === 'darwin') {
-      var appDmg = require('appdmg')
-      var sign = require('electron-osx-sign')
+      if (argv.sign) {
+        signApp(function (err) {
+          if (err) return cb(err)
+          pack(cb)
+        })
+      } else {
+        printWarning()
+        pack(cb)
+      }
+    } else {
+      printWarning()
+    }
+
+    function signApp (cb) {
+      const sign = require('electron-osx-sign')
 
       /*
-       * Sign the app with Apple Developer ID certificate. We sign the app for 2 reasons:
+       * Sign the app with Apple Developer ID certificates. We sign the app for 2 reasons:
        *   - So the auto-updater (Squirrrel.Mac) can check that app updates are signed by
        *     the same author as the current version.
        *   - So users will not a see a warning about the app coming from an "Unidentified
-       *     Developer" when they open it for the first time (OS X Gatekeeper).
+       *     Developer" when they open it for the first time (Mac Gatekeeper).
        *
-       * To sign an OS X app for distribution outside the App Store, the following are
+       * To sign an Mac app for distribution outside the App Store, the following are
        * required:
        *   - Xcode
        *   - Xcode Command Line Tools (xcode-select --install)
        *   - Membership in the Apple Developer Program
        */
-      var signOpts = {
+      const signOpts = {
         app: appPath,
         platform: 'darwin',
         verbose: true
       }
 
+      console.log('Mac: Signing app...')
       sign(signOpts, function (err) {
         if (err) return cb(err)
+        console.log('Mac: Signed app.')
+        cb(null)
+      })
+    }
 
-        // Create .zip file (used by the auto-updater)
-        var zipPath = path.join(config.ROOT_PATH, 'dist', BUILD_NAME + '-darwin.zip')
-        cp.execSync(`cd ${buildPath[0]} && zip -r -y ${zipPath} ${config.APP_NAME + '.app'}`)
-        console.log('Created OS X .zip file.')
+    function pack (cb) {
+      packageZip() // always produce .zip file, used for automatic updates
 
-        var targetPath = path.join(config.ROOT_PATH, 'dist', BUILD_NAME + '.dmg')
-        rimraf.sync(targetPath)
+      if (argv.package === 'dmg' || argv.package === 'all') {
+        packageDmg(cb)
+      }
+    }
 
-        // Create a .dmg (OS X disk image) file, for easy user installation.
-        var dmgOpts = {
-          basepath: config.ROOT_PATH,
-          target: targetPath,
-          specification: {
-            title: config.APP_NAME,
-            icon: config.APP_ICON + '.icns',
-            background: path.join(config.STATIC_PATH, 'appdmg.png'),
-            'icon-size': 128,
-            contents: [
-              { x: 122, y: 240, type: 'file', path: appPath },
-              { x: 380, y: 240, type: 'link', path: '/Applications' },
-              // Hide hidden icons out of view, for users who have hidden files shown.
-              // https://github.com/LinusU/node-appdmg/issues/45#issuecomment-153924954
-              { x: 50, y: 500, type: 'position', path: '.background' },
-              { x: 100, y: 500, type: 'position', path: '.DS_Store' },
-              { x: 150, y: 500, type: 'position', path: '.Trashes' },
-              { x: 200, y: 500, type: 'position', path: '.VolumeIcon.icns' }
-            ]
-          }
+    function packageZip () {
+      // Create .zip file (used by the auto-updater)
+      console.log('Mac: Creating zip...')
+
+      const inPath = path.join(buildPath[0], config.APP_NAME + '.app')
+      const outPath = path.join(DIST_PATH, BUILD_NAME + '-darwin.zip')
+      zip.zipSync(inPath, outPath)
+
+      console.log('Mac: Created zip.')
+    }
+
+    function packageDmg (cb) {
+      console.log('Mac: Creating dmg...')
+
+      const appDmg = require('appdmg')
+
+      const targetPath = path.join(DIST_PATH, BUILD_NAME + '.dmg')
+      rimraf.sync(targetPath)
+
+      // Create a .dmg (Mac disk image) file, for easy user installation.
+      const dmgOpts = {
+        basepath: config.ROOT_PATH,
+        target: targetPath,
+        specification: {
+          title: config.APP_NAME,
+          icon: config.APP_ICON + '.icns',
+          background: path.join(config.STATIC_PATH, 'appdmg.png'),
+          'icon-size': 128,
+          contents: [
+            { x: 122, y: 240, type: 'file', path: appPath },
+            { x: 380, y: 240, type: 'link', path: '/Applications' },
+            // Hide hidden icons out of view, for users who have hidden files shown.
+            // https://github.com/LinusU/node-appdmg/issues/45#issuecomment-153924954
+            { x: 50, y: 500, type: 'position', path: '.background' },
+            { x: 100, y: 500, type: 'position', path: '.DS_Store' },
+            { x: 150, y: 500, type: 'position', path: '.Trashes' },
+            { x: 200, y: 500, type: 'position', path: '.VolumeIcon.icns' }
+          ]
         }
+      }
 
-        var dmg = appDmg(dmgOpts)
-        dmg.on('error', cb)
-        dmg.on('progress', function (info) {
-          if (info.type === 'step-begin') console.log(info.title + '...')
-        })
-        dmg.on('finish', function (info) {
-          console.log('Created OS X disk image (.dmg) file.')
-          cb(null, buildPath)
-        })
+      const dmg = appDmg(dmgOpts)
+      dmg.once('error', cb)
+      dmg.on('progress', function (info) {
+        if (info.type === 'step-begin') console.log(info.title + '...')
+      })
+      dmg.once('finish', function (info) {
+        console.log('Mac: Created dmg.')
+        cb(null)
       })
     }
   })
 }
 
 function buildWin32 (cb) {
-  var installer = require('electron-winstaller')
+  const installer = require('electron-winstaller')
+  console.log('Windows: Packaging electron...')
+
+  /*
+   * Path to folder with the following files:
+   *   - Windows Authenticode private key and cert (authenticode.p12)
+   *   - Windows Authenticode password file (authenticode.txt)
+   */
+  let CERT_PATH
+  try {
+    fs.accessSync('D:')
+    CERT_PATH = 'D:'
+  } catch (err) {
+    CERT_PATH = path.join(os.homedir(), 'Desktop')
+  }
 
   electronPackager(Object.assign({}, all, win32), function (err, buildPath) {
     if (err) return cb(err)
+    console.log('Windows: Packaged electron. ' + buildPath)
 
-    console.log('Creating Windows installer...')
-    installer.createWindowsInstaller({
-      appDirectory: buildPath[0],
-      authors: config.APP_TEAM,
-      // certificateFile: '', // TODO
-      description: config.APP_NAME,
-      exe: config.APP_NAME + '.exe',
-      iconUrl: config.GITHUB_URL_RAW + '/static/' + config.APP_NAME + '.ico',
-      loadingGif: path.join(config.STATIC_PATH, 'loading.gif'),
-      remoteReleases: config.GITHUB_URL,
-      name: config.APP_NAME,
-      noMsi: true,
-      outputDirectory: path.join(config.ROOT_PATH, 'dist'),
-      productName: config.APP_NAME,
-      setupExe: config.APP_NAME + 'Setup-v' + config.APP_VERSION + '.exe',
-      setupIcon: config.APP_ICON + '.ico',
-      title: config.APP_NAME,
-      usePackageJson: false,
-      version: pkg.version
-    }).then(function () {
-      console.log('Created Windows installer.')
-      cb(null, buildPath)
-    }).catch(cb)
+    let signWithParams
+    if (process.platform === 'win32') {
+      if (argv.sign) {
+        const certificateFile = path.join(CERT_PATH, 'authenticode.p12')
+        const certificatePassword = fs.readFileSync(path.join(CERT_PATH, 'authenticode.txt'), 'utf8')
+        const timestampServer = 'http://timestamp.comodoca.com'
+        signWithParams = `/a /f "${certificateFile}" /p "${certificatePassword}" /tr "${timestampServer}" /td sha256`
+      } else {
+        printWarning()
+      }
+    } else {
+      printWarning()
+    }
+
+    const tasks = []
+    buildPath.forEach(function (filesPath) {
+      const destArch = filesPath.split('-').pop()
+
+      if (argv.package === 'exe' || argv.package === 'all') {
+        tasks.push((cb) => packageInstaller(filesPath, destArch, cb))
+      }
+      if (argv.package === 'portable' || argv.package === 'all') {
+        tasks.push((cb) => packagePortable(filesPath, destArch, cb))
+      }
+    })
+    series(tasks, cb)
+
+    function packageInstaller (filesPath, destArch, cb) {
+      console.log(`Windows: Creating ${destArch} installer...`)
+
+      const archStr = destArch === 'ia32' ? '-ia32' : ''
+
+      installer.createWindowsInstaller({
+        appDirectory: filesPath,
+        authors: config.APP_TEAM,
+        description: config.APP_NAME,
+        exe: config.APP_NAME + '.exe',
+        iconUrl: config.GITHUB_URL_RAW + '/static/' + config.APP_NAME + '.ico',
+        loadingGif: path.join(config.STATIC_PATH, 'loading.gif'),
+        name: config.APP_NAME,
+        noMsi: true,
+        outputDirectory: DIST_PATH,
+        productName: config.APP_NAME,
+        /**
+         * Only create delta updates for the Windows x64 build because 90% of our
+         * users have Windows x64 and the delta files take a *very* long time to
+         * generate. Also, the ia32 files on GitHub have non-standard Squirrel
+         * names (i.e. RELEASES-ia32 instead of RELEASES) and so Squirrel won't
+         * find them unless we proxy the requests.
+         */
+        // TODO: Re-enable Windows 64-bit delta updates when we confirm that they
+        //       work correctly in the presence of the "ia32" .nupkg files. I
+        //       (feross) noticed them listed in the 64-bit RELEASES file and
+        //       manually edited them out for the v0.17 release. Shipping only
+        //       full updates for now will work fine, with no ill-effects.
+        // remoteReleases: destArch === 'x64'
+        //   ? config.GITHUB_URL
+        //   : undefined,
+        /**
+         * If you hit a "GitHub API rate limit exceeded" error, set this token!
+         */
+        // remoteToken: process.env.WEBTORRENT_GITHUB_API_TOKEN,
+        setupExe: config.APP_NAME + 'Setup-v' + config.APP_VERSION + archStr + '.exe',
+        setupIcon: config.APP_ICON + '.ico',
+        signWithParams: signWithParams,
+        title: config.APP_NAME,
+        usePackageJson: false,
+        version: pkg.version
+      })
+      .then(function () {
+        console.log(`Windows: Created ${destArch} installer.`)
+
+        /**
+         * Delete extraneous Squirrel files (i.e. *.nupkg delta files for older
+         * versions of the app)
+         */
+        fs.readdirSync(DIST_PATH)
+          .filter((name) => name.endsWith('.nupkg') && !name.includes(pkg.version))
+          .forEach((filename) => {
+            fs.unlinkSync(path.join(DIST_PATH, filename))
+          })
+
+        if (destArch === 'ia32') {
+          console.log('Windows: Renaming ia32 installer files...')
+
+          // RELEASES -> RELEASES-ia32
+          const relPath = path.join(DIST_PATH, 'RELEASES-ia32')
+          fs.renameSync(
+            path.join(DIST_PATH, 'RELEASES'),
+            relPath
+          )
+
+          // WebTorrent-vX.X.X-full.nupkg -> WebTorrent-vX.X.X-ia32-full.nupkg
+          fs.renameSync(
+            path.join(DIST_PATH, `${config.APP_NAME}-${config.APP_VERSION}-full.nupkg`),
+            path.join(DIST_PATH, `${config.APP_NAME}-${config.APP_VERSION}-ia32-full.nupkg`)
+          )
+
+          // Change file name inside RELEASES-ia32 to match renamed file
+          const relContent = fs.readFileSync(relPath, 'utf8')
+          const relContent32 = relContent.replace('full.nupkg', 'ia32-full.nupkg')
+          fs.writeFileSync(relPath, relContent32)
+
+          if (relContent === relContent32) {
+            // Sanity check
+            throw new Error('Fixing RELEASES-ia32 failed. Replacement did not modify the file.')
+          }
+
+          console.log('Windows: Renamed ia32 installer files.')
+        }
+
+        cb(null)
+      })
+      .catch(cb)
+    }
+
+    function packagePortable (filesPath, destArch, cb) {
+      console.log(`Windows: Creating ${destArch} portable app...`)
+
+      const portablePath = path.join(filesPath, 'Portable Settings')
+      mkdirp.sync(portablePath)
+
+      const downloadsPath = path.join(portablePath, 'Downloads')
+      mkdirp.sync(downloadsPath)
+
+      const tempPath = path.join(portablePath, 'Temp')
+      mkdirp.sync(tempPath)
+
+      const archStr = destArch === 'ia32' ? '-ia32' : ''
+
+      const inPath = path.join(DIST_PATH, path.basename(filesPath))
+      const outPath = path.join(DIST_PATH, BUILD_NAME + '-win' + archStr + '.zip')
+      zip.zipSync(inPath, outPath)
+
+      console.log(`Windows: Created ${destArch} portable app.`)
+      cb(null)
+    }
   })
 }
 
-function buildLinux (packageType, cb) {
+function buildLinux (cb) {
+  console.log('Linux: Packaging electron...')
   electronPackager(Object.assign({}, all, linux), function (err, buildPath) {
     if (err) return cb(err)
+    console.log('Linux: Packaged electron. ' + buildPath)
 
-    var distPath = path.join(config.ROOT_PATH, 'dist')
-    var filesPath = buildPath[0]
+    const tasks = []
+    buildPath.forEach(function (filesPath) {
+      const destArch = filesPath.split('-').pop()
 
-    if (packageType === 'deb' || packageType === 'all') {
-      // Create .deb file for debian based platforms
-      var deb = require('nobin-debian-installer')()
-      var destPath = path.join('/opt', pkg.name)
-
-      deb.pack({
-        package: pkg,
-        info: {
-          arch: 'amd64',
-          targetDir: distPath,
-          depends: 'libc6 (>= 2.4)',
-          scripts: {
-            postinst: path.join(config.STATIC_PATH, 'linux', 'postinst'),
-            prerm: path.join(config.STATIC_PATH, 'linux', 'prerm')
-          }
-        }
-      }, [{
-        src: ['./**'],
-        dest: destPath,
-        expand: true,
-        cwd: filesPath
-      }], function (err, done) {
-        if (err) return console.error(err.message || err)
-        console.log('Created Linux .deb file.')
-      })
-    }
-
-    if (packageType === 'zip' || packageType === 'all') {
-      // Create .zip file for Linux
-      var zipPath = path.join(config.ROOT_PATH, 'dist', BUILD_NAME + '-linux.zip')
-      var appFolderName = path.basename(filesPath)
-      cp.execSync(`cd ${distPath} && zip -r -y ${zipPath} ${appFolderName}`)
-      console.log('Created Linux .zip file.')
-    }
+      if (argv.package === 'deb' || argv.package === 'all') {
+        tasks.push((cb) => packageDeb(filesPath, destArch, cb))
+      }
+      if (argv.package === 'zip' || argv.package === 'all') {
+        tasks.push((cb) => packageZip(filesPath, destArch, cb))
+      }
+    })
+    series(tasks, cb)
   })
+
+  function packageDeb (filesPath, destArch, cb) {
+    // Create .deb file for Debian-based platforms
+    console.log(`Linux: Creating ${destArch} deb...`)
+
+    const deb = require('nobin-debian-installer')()
+    const destPath = path.join('/opt', pkg.name)
+
+    deb.pack({
+      package: pkg,
+      info: {
+        arch: destArch === 'x64' ? 'amd64' : 'i386',
+        targetDir: DIST_PATH,
+        depends: 'gconf2, libgtk2.0-0, libnss3, libxss1',
+        scripts: {
+          postinst: path.join(config.STATIC_PATH, 'linux', 'postinst'),
+          prerm: path.join(config.STATIC_PATH, 'linux', 'prerm')
+        }
+      }
+    }, [{
+      src: ['./**'],
+      dest: destPath,
+      expand: true,
+      cwd: filesPath
+    }, {
+      src: ['./**'],
+      dest: path.join('/usr', 'share'),
+      expand: true,
+      cwd: path.join(config.STATIC_PATH, 'linux', 'share')
+    }], function (err) {
+      if (err) return cb(err)
+      console.log(`Linux: Created ${destArch} deb.`)
+      cb(null)
+    })
+  }
+
+  function packageZip (filesPath, destArch, cb) {
+    // Create .zip file for Linux
+    console.log(`Linux: Creating ${destArch} zip...`)
+
+    const archStr = destArch === 'ia32' ? '-ia32' : ''
+
+    const inPath = path.join(DIST_PATH, path.basename(filesPath))
+    const outPath = path.join(DIST_PATH, BUILD_NAME + '-linux' + archStr + '.zip')
+    zip.zipSync(inPath, outPath)
+
+    console.log(`Linux: Created ${destArch} zip.`)
+    cb(null)
+  }
 }
 
-function printDone (err, buildPath) {
+function printDone (err) {
   if (err) console.error(err.message || err)
-  else console.log('Built ' + buildPath[0])
+}
+
+/*
+ * Print a large warning when signing is disabled so we are less likely to accidentally
+ * ship unsigned binaries to users.
+ */
+function printWarning () {
+  console.log(fs.readFileSync(path.join(__dirname, 'warning.txt'), 'utf8'))
 }

bin/release-_post.sh

@@ -1,9 +1,9 @@
 #!/bin/sh
 set -e
 
+npm run update-authors
 git diff --exit-code
-npm run package
+npm run package -- --sign
 git push
 git push --tags
-npm publish
-gh-release
+npm run gh-release

bin/release-_pre.sh

@@ -2,8 +2,7 @@
 set -e
 
 git pull
-npm run update-authors
-git diff --exit-code
 rm -rf node_modules/
 npm install
+npm dedupe
 npm test

bin/update-authors.sh

@@ -2,15 +2,17 @@
 
 # Update AUTHORS.md based on git history.
 
-git log --reverse --format='%aN <%aE>' | perl -we '
+git log --reverse --format='%aN (%aE)' | perl -we '
 BEGIN {
   %seen = (), @authors = ();
 }
 while (<>) {
   next if $seen{$_};
-  next if /<support\@greenkeeper.io>/;
-  next if /<ungoldman\@gmail.com>/;
-  next if /<grunjol\@users.noreply.github.com>/;
+  next if /(support\@greenkeeper.io)/;
+  next if /(ungoldman\@gmail.com)/;
+  next if /(dc\@DCs-MacBook.local)/;
+  next if /(rolandoguedes\@gmail.com)/;
+  next if /(grunjol\@users.noreply.github.com)/;
   $seen{$_} = push @authors, "- ", $_;
 }
 END {

bin/warning.txt

@@ -0,0 +1,12 @@
+
+*********************************************************
+       _    _  ___  ______ _   _ _____ _   _ _____
+      | |  | |/ _ \ | ___ \ \ | |_   _| \ | |  __ \
+      | |  | / /_\ \| |_/ /  \| | | | |  \| | |  \/
+      | |/\| |  _  ||    /| . ` | | | | . ` | | __
+      \  /\  / | | || |\ \| |\  |_| |_| |\  | |_\ \
+       \/  \/\_| |_/\_| \_\_| \_/\___/\_| \_/\____/
+
+  Application is NOT signed. Do not ship this to users!
+
+*********************************************************

config.js

@@ -1,85 +0,0 @@
-var applicationConfigPath = require('application-config-path')
-var path = require('path')
-
-var APP_NAME = 'WebTorrent'
-var APP_TEAM = 'The WebTorrent Project'
-var APP_VERSION = require('./package.json').version
-
-module.exports = {
-  APP_COPYRIGHT: 'Copyright © 2014-2016 ' + APP_TEAM,
-  APP_FILE_ICON: path.join(__dirname, 'static', 'WebTorrentFile'),
-  APP_ICON: path.join(__dirname, 'static', 'WebTorrent'),
-  APP_NAME: APP_NAME,
-  APP_TEAM: APP_TEAM,
-  APP_VERSION: APP_VERSION,
-  APP_WINDOW_TITLE: APP_NAME + ' (BETA)',
-
-  AUTO_UPDATE_URL: 'https://webtorrent.io/desktop/update?version=' + APP_VERSION,
-  AUTO_UPDATE_CHECK_STARTUP_DELAY: 5 * 1000 /* 5 seconds */,
-
-  CRASH_REPORT_URL: 'https://webtorrent.io/desktop/crash-report',
-
-  CONFIG_PATH: applicationConfigPath(APP_NAME),
-  CONFIG_POSTER_PATH: path.join(applicationConfigPath(APP_NAME), 'Posters'),
-  CONFIG_TORRENT_PATH: path.join(applicationConfigPath(APP_NAME), 'Torrents'),
-
-  GITHUB_URL: 'https://github.com/feross/webtorrent-desktop',
-  GITHUB_URL_RAW: 'https://raw.githubusercontent.com/feross/webtorrent-desktop/master',
-
-  IS_PRODUCTION: isProduction(),
-
-  ROOT_PATH: __dirname,
-  STATIC_PATH: path.join(__dirname, 'static'),
-
-  SOUND_ADD: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'add.wav'),
-    volume: 0.2
-  },
-  SOUND_DELETE: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'delete.wav'),
-    volume: 0.1
-  },
-  SOUND_DISABLE: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'disable.wav'),
-    volume: 0.2
-  },
-  SOUND_DONE: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'done.wav'),
-    volume: 0.2
-  },
-  SOUND_ENABLE: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'enable.wav'),
-    volume: 0.2
-  },
-  SOUND_ERROR: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'error.wav'),
-    volume: 0.2
-  },
-  SOUND_PLAY: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'play.wav'),
-    volume: 0.2
-  },
-  SOUND_STARTUP: {
-    url: 'file://' + path.join(__dirname, 'static', 'sound', 'startup.wav'),
-    volume: 0.4
-  },
-
-  WINDOW_ABOUT: 'file://' + path.join(__dirname, 'renderer', 'about.html'),
-  WINDOW_WEBTORRENT: 'file://' + path.join(__dirname, 'renderer', 'webtorrent.html'),
-  WINDOW_MAIN: 'file://' + path.join(__dirname, 'renderer', 'main.html')
-}
-
-function isProduction () {
-  if (!process.versions.electron) {
-    return false
-  }
-  if (process.platform === 'darwin') {
-    return !/\/Electron\.app\/Contents\/MacOS\/Electron$/.test(process.execPath)
-  }
-  if (process.platform === 'win32') {
-    return !/\\electron\.exe$/.test(process.execPath)
-  }
-  if (process.platform === 'linux') {
-    return !/\/electron$/.test(process.execPath)
-  }
-}

index.js

@@ -1,2 +1 @@
-console.time('init')
-require('./main')
+require('./build/main')

main/auto-updater.js

@@ -1,50 +0,0 @@
-module.exports = {
-  init
-}
-
-var electron = require('electron')
-var get = require('simple-get')
-
-var config = require('../config')
-var log = require('./log')
-var windows = require('./windows')
-
-var autoUpdater = electron.autoUpdater
-
-function init () {
-  autoUpdater.on('error', function (err) {
-    log.error('App update error: ' + err.message || err)
-  })
-
-  autoUpdater.setFeedURL(config.AUTO_UPDATE_URL)
-
-  /*
-   * We always check for updates on app startup. To keep app startup fast, we delay this
-   * first check so it happens when there is less going on.
-   */
-  setTimeout(checkForUpdates, config.AUTO_UPDATE_CHECK_STARTUP_DELAY)
-
-  autoUpdater.on('checking-for-update', () => log('Checking for app update'))
-  autoUpdater.on('update-available', () => log('App update available'))
-  autoUpdater.on('update-not-available', () => log('App update not available'))
-  autoUpdater.on('update-downloaded', function (e, releaseNotes, releaseName, releaseDate, updateURL) {
-    log('App update downloaded: ', releaseName, updateURL)
-  })
-}
-
-function checkForUpdates () {
-  // Electron's built-in auto updater only supports Mac and Windows, for now
-  if (process.platform !== 'linux') {
-    return autoUpdater.checkForUpdates()
-  }
-
-  // If we're on Linux, we have to do it ourselves
-  get.concat(config.AUTO_UPDATE_URL, function (err, res, data) {
-    if (err) return log('Error checking for app update: ' + err.message)
-    if (![200, 204].includes(res.statusCode)) return log('Error checking for app update, got HTTP ' + res.statusCode)
-    if (res.statusCode !== 200) return
-
-    var obj = JSON.parse(data)
-    windows.main.send('dispatch', 'updateAvailable', obj.version)
-  })
-}

main/index.js

@@ -1,131 +0,0 @@
-var electron = require('electron')
-
-var app = electron.app
-var ipcMain = electron.ipcMain
-
-var autoUpdater = require('./auto-updater')
-var config = require('../config')
-var crashReporter = require('../crash-reporter')
-var handlers = require('./handlers')
-var ipc = require('./ipc')
-var log = require('./log')
-var menu = require('./menu')
-var shortcuts = require('./shortcuts')
-var squirrelWin32 = require('./squirrel-win32')
-var windows = require('./windows')
-var tray = require('./tray')
-
-var shouldQuit = false
-var argv = sliceArgv(process.argv)
-
-if (process.platform === 'win32') {
-  shouldQuit = squirrelWin32.handleEvent(argv[0])
-  argv = argv.filter((arg) => arg.indexOf('--squirrel') === -1)
-}
-
-if (!shouldQuit) {
-  // Prevent multiple instances of app from running at same time. New instances signal
-  // this instance and quit.
-  shouldQuit = app.makeSingleInstance(onAppOpen)
-  if (shouldQuit) {
-    app.quit()
-  }
-}
-
-if (!shouldQuit) {
-  init()
-}
-
-function init () {
-  app.ipcReady = false // main window has finished loading and IPC is ready
-  app.isQuitting = false
-
-  // Open handlers must be added as early as possible
-  app.on('open-file', onOpen)
-  app.on('open-url', onOpen)
-
-  ipc.init()
-
-  app.on('will-finish-launching', function () {
-    crashReporter.init()
-    autoUpdater.init()
-  })
-
-  app.on('ready', function () {
-    menu.init()
-    windows.createMainWindow()
-    windows.createWebTorrentHiddenWindow()
-    shortcuts.init()
-    tray.init()
-    handlers.install()
-  })
-
-  app.on('ipcReady', function () {
-    log('Command line args:', argv)
-    processArgv(argv)
-  })
-
-  app.on('before-quit', function (e) {
-    if (app.isQuitting) return
-
-    app.isQuitting = true
-    e.preventDefault()
-    windows.main.send('dispatch', 'saveState') /* try to save state on exit */
-    ipcMain.once('savedState', () => app.quit())
-    setTimeout(() => app.quit(), 2000) /* quit after 2 secs, at most */
-  })
-
-  app.on('activate', function () {
-    windows.createMainWindow()
-  })
-}
-
-function onOpen (e, torrentId) {
-  e.preventDefault()
-
-  if (app.ipcReady) {
-    windows.main.send('dispatch', 'onOpen', torrentId)
-    // Magnet links opened from Chrome won't focus the app without a setTimeout. The
-    // confirmation dialog Chrome shows causes Chrome to steal back the focus.
-    // Electron issue: https://github.com/atom/electron/issues/4338
-    setTimeout(function () {
-      windows.focusWindow(windows.main)
-    }, 100)
-  } else {
-    argv.push(torrentId)
-  }
-}
-
-function onAppOpen (newArgv) {
-  newArgv = sliceArgv(newArgv)
-
-  if (app.ipcReady) {
-    log('Second app instance opened, but was prevented:', newArgv)
-    windows.focusWindow(windows.main)
-
-    processArgv(newArgv)
-  } else {
-    argv.push(...newArgv)
-  }
-}
-
-function sliceArgv (argv) {
-  return argv.slice(config.IS_PRODUCTION ? 1 : 2)
-}
-
-function processArgv (argv) {
-  argv.forEach(function (arg) {
-    if (arg === '-n') {
-      windows.main.send('dispatch', 'showCreateTorrent')
-    } else if (arg === '-o') {
-      windows.main.send('dispatch', 'showOpenTorrentFile')
-    } else if (arg === '-u') {
-      windows.main.send('showOpenTorrentAddress')
-    } else if (arg.startsWith('-psn')) {
-      // Ignore OS X launchd "process serial number" argument
-      // More: https://github.com/feross/webtorrent-desktop/issues/214
-    } else {
-      windows.main.send('dispatch', 'onOpen', arg)
-    }
-  })
-}

main/ipc.js

@@ -1,180 +0,0 @@
-module.exports = {
-  init
-}
-
-var electron = require('electron')
-
-var app = electron.app
-var ipcMain = electron.ipcMain
-var powerSaveBlocker = electron.powerSaveBlocker
-
-var log = require('./log')
-var menu = require('./menu')
-var windows = require('./windows')
-var shortcuts = require('./shortcuts')
-
-// has to be a number, not a boolean, and undefined throws an error
-var powerSaveBlockID = 0
-
-function init () {
-  ipcMain.on('ipcReady', function (e) {
-    app.ipcReady = true
-    app.emit('ipcReady')
-    windows.main.show()
-    console.timeEnd('init')
-  })
-
-  var messageQueueMainToWebTorrent = []
-  ipcMain.on('ipcReadyWebTorrent', function (e) {
-    app.ipcReadyWebTorrent = true
-    log('sending %d queued messages from the main win to the webtorrent window',
-      messageQueueMainToWebTorrent.length)
-    messageQueueMainToWebTorrent.forEach(function (message) {
-      windows.webtorrent.send(message.name, ...message.args)
-      log('webtorrent: sent queued %s', message.name)
-    })
-  })
-
-  ipcMain.on('showOpenTorrentFile', menu.showOpenTorrentFile)
-  ipcMain.on('showCreateTorrent', menu.showCreateTorrent)
-
-  ipcMain.on('setBounds', function (e, bounds, maximize) {
-    setBounds(bounds, maximize)
-  })
-
-  ipcMain.on('setAspectRatio', function (e, aspectRatio, extraSize) {
-    setAspectRatio(aspectRatio, extraSize)
-  })
-
-  ipcMain.on('setBadge', function (e, text) {
-    setBadge(text)
-  })
-
-  ipcMain.on('setProgress', function (e, progress) {
-    setProgress(progress)
-  })
-
-  ipcMain.on('toggleFullScreen', function (e, flag) {
-    menu.toggleFullScreen(flag)
-  })
-
-  ipcMain.on('setTitle', function (e, title) {
-    windows.main.setTitle(title)
-  })
-
-  ipcMain.on('openItem', function (e, path) {
-    log('opening file or folder: ' + path)
-    electron.shell.openItem(path)
-  })
-
-  ipcMain.on('blockPowerSave', blockPowerSave)
-  ipcMain.on('unblockPowerSave', unblockPowerSave)
-
-  ipcMain.on('onPlayerOpen', function () {
-    menu.onPlayerOpen()
-    shortcuts.registerPlayerShortcuts()
-  })
-  ipcMain.on('onPlayerClose', function () {
-    menu.onPlayerClose()
-    shortcuts.unregisterPlayerShortcuts()
-  })
-
-  ipcMain.on('focusWindow', function (e, windowName) {
-    windows.focusWindow(windows[windowName])
-  })
-
-  // Capture all events
-  var oldEmit = ipcMain.emit
-  ipcMain.emit = function (name, e, ...args) {
-    // Relay messages between the main window and the WebTorrent hidden window
-    if (name.startsWith('wt-')) {
-      if (e.sender.browserWindowOptions.title === 'webtorrent-hidden-window') {
-        // Send message to main window
-        windows.main.send(name, ...args)
-        log('webtorrent: got %s', name)
-      } else if (app.ipcReadyWebTorrent) {
-        // Send message to webtorrent window
-        windows.webtorrent.send(name, ...args)
-        log('webtorrent: sent %s', name)
-      } else {
-        // Queue message for webtorrent window, it hasn't finished loading yet
-        messageQueueMainToWebTorrent.push({
-          name: name,
-          args: args
-        })
-        log('webtorrent: queueing %s', name)
-      }
-      return
-    }
-
-    // Emit all other events normally
-    oldEmit.call(ipcMain, name, e, ...args)
-  }
-}
-
-function setBounds (bounds, maximize) {
-  // Do nothing in fullscreen
-  if (!windows.main || windows.main.isFullScreen()) {
-    log('setBounds: not setting bounds because we\'re in full screen')
-    return
-  }
-
-  // Maximize or minimize, if the second argument is present
-  var willBeMaximized
-  if (maximize === true) {
-    if (!windows.main.isMaximized()) {
-      log('setBounds: maximizing')
-      windows.main.maximize()
-    }
-    willBeMaximized = true
-  } else if (maximize === false) {
-    if (windows.main.isMaximized()) {
-      log('setBounds: unmaximizing')
-      windows.main.unmaximize()
-    }
-    willBeMaximized = false
-  } else {
-    willBeMaximized = windows.main.isMaximized()
-  }
-
-  // Assuming we're not maximized or maximizing, set the window size
-  if (!willBeMaximized) {
-    log('setBounds: setting bounds to ' + JSON.stringify(bounds))
-    windows.main.setBounds(bounds, true)
-  } else {
-    log('setBounds: not setting bounds because of window maximization')
-  }
-}
-
-function setAspectRatio (aspectRatio, extraSize) {
-  log('setAspectRatio %o %o', aspectRatio, extraSize)
-  if (windows.main) {
-    windows.main.setAspectRatio(aspectRatio, extraSize)
-  }
-}
-
-// Display string in dock badging area (OS X)
-function setBadge (text) {
-  log('setBadge %s', text)
-  if (app.dock) app.dock.setBadge(String(text))
-}
-
-// Show progress bar. Valid range is [0, 1]. Remove when < 0; indeterminate when > 1.
-function setProgress (progress) {
-  log('setProgress %s', progress)
-  if (windows.main) {
-    windows.main.setProgressBar(progress)
-  }
-}
-
-function blockPowerSave () {
-  powerSaveBlockID = powerSaveBlocker.start('prevent-display-sleep')
-  log('blockPowerSave %d', powerSaveBlockID)
-}
-
-function unblockPowerSave () {
-  if (powerSaveBlocker.isStarted(powerSaveBlockID)) {
-    powerSaveBlocker.stop(powerSaveBlockID)
-    log('unblockPowerSave %d', powerSaveBlockID)
-  }
-}

main/menu.js

@@ -1,405 +0,0 @@
-module.exports = {
-  init,
-  onToggleFullScreen,
-  onWindowHide,
-  onWindowShow,
-  onPlayerOpen,
-  onPlayerClose,
-  showCreateTorrent,
-  showOpenTorrentFile,
-  toggleFullScreen
-}
-
-var electron = require('electron')
-
-var app = electron.app
-
-var config = require('../config')
-var log = require('./log')
-var windows = require('./windows')
-
-var appMenu, dockMenu
-
-function init () {
-  appMenu = electron.Menu.buildFromTemplate(getAppMenuTemplate())
-  electron.Menu.setApplicationMenu(appMenu)
-
-  dockMenu = electron.Menu.buildFromTemplate(getDockMenuTemplate())
-  if (app.dock) app.dock.setMenu(dockMenu)
-}
-
-function toggleFullScreen (flag) {
-  log('toggleFullScreen %s', flag)
-  if (windows.main && windows.main.isVisible()) {
-    flag = flag != null ? flag : !windows.main.isFullScreen()
-    windows.main.setFullScreen(flag)
-  }
-}
-
-// Sets whether the window should always show on top of other windows
-function toggleFloatOnTop (flag) {
-  log('toggleFloatOnTop %s', flag)
-  if (windows.main) {
-    flag = flag != null ? flag : !windows.main.isAlwaysOnTop()
-    windows.main.setAlwaysOnTop(flag)
-    getMenuItem('Float on Top').checked = flag
-  }
-}
-
-function increaseVolume () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'changeVolume', 0.1)
-  }
-}
-
-function decreaseVolume () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'changeVolume', -0.1)
-  }
-}
-
-function toggleDevTools () {
-  log('toggleDevTools')
-  if (windows.main) {
-    windows.main.toggleDevTools()
-  }
-}
-
-function showWebTorrentWindow () {
-  windows.webtorrent.show()
-  windows.webtorrent.webContents.openDevTools({ detach: true })
-}
-
-function addFakeDevice (device) {
-  log('addFakeDevice %s', device)
-  windows.main.send('addFakeDevice', device)
-}
-
-function onWindowShow () {
-  log('onWindowShow')
-  getMenuItem('Full Screen').enabled = true
-  getMenuItem('Float on Top').enabled = true
-}
-
-function onWindowHide () {
-  log('onWindowHide')
-  getMenuItem('Full Screen').enabled = false
-  getMenuItem('Float on Top').enabled = false
-}
-
-function onPlayerOpen () {
-  getMenuItem('Increase Volume').enabled = true
-  getMenuItem('Decrease Volume').enabled = true
-}
-
-function onPlayerClose () {
-  getMenuItem('Increase Volume').enabled = false
-  getMenuItem('Decrease Volume').enabled = false
-}
-
-function onToggleFullScreen (isFullScreen) {
-  isFullScreen = isFullScreen != null ? isFullScreen : windows.main.isFullScreen()
-  windows.main.setMenuBarVisibility(!isFullScreen)
-  getMenuItem('Full Screen').checked = isFullScreen
-  windows.main.send('fullscreenChanged', isFullScreen)
-}
-
-function getMenuItem (label) {
-  for (var i = 0; i < appMenu.items.length; i++) {
-    var menuItem = appMenu.items[i].submenu.items.find(function (item) {
-      return item.label === label
-    })
-    if (menuItem) return menuItem
-  }
-}
-
-// Prompts the user for a file or folder, then makes a torrent out of the data
-function showCreateTorrent () {
-  // Allow only a single selection
-  // To create a multi-file torrent, the user must select a folder
-  electron.dialog.showOpenDialog({
-    title: 'Select a file or folder for the torrent file.',
-    properties: [ 'openFile', 'openDirectory' ]
-  }, function (filenames) {
-    if (!Array.isArray(filenames)) return
-    var options = {
-      files: filenames[0]
-    }
-    windows.main.send('dispatch', 'createTorrent', options)
-  })
-}
-
-// Prompts the user to choose a torrent file, then adds it to the app
-function showOpenTorrentFile () {
-  electron.dialog.showOpenDialog(windows.main, {
-    title: 'Select a .torrent file to open.',
-    filters: [{ name: 'Torrent Files', extensions: ['torrent'] }],
-    properties: [ 'openFile', 'multiSelections' ]
-  }, function (filenames) {
-    if (!Array.isArray(filenames)) return
-    filenames.forEach(function (filename) {
-      windows.main.send('dispatch', 'addTorrent', filename)
-    })
-  })
-}
-
-// Prompts the user for the URL of a torrent file, then downloads and adds it
-function showOpenTorrentAddress () {
-  windows.main.send('showOpenTorrentAddress')
-}
-
-function getAppMenuTemplate () {
-  var fileMenu = [
-    {
-      label: 'Create New Torrent...',
-      accelerator: 'CmdOrCtrl+N',
-      click: showCreateTorrent
-    },
-    {
-      label: 'Open Torrent File...',
-      accelerator: 'CmdOrCtrl+O',
-      click: showOpenTorrentFile
-    },
-    {
-      label: 'Open Torrent Address...',
-      accelerator: 'CmdOrCtrl+U',
-      click: showOpenTorrentAddress
-    },
-    {
-      type: 'separator'
-    },
-    {
-      label: process.platform === 'windows' ? 'Close' : 'Close Window',
-      accelerator: 'CmdOrCtrl+W',
-      role: 'close'
-    }
-  ]
-
-  // File > Quit for Linux users with distros where the system tray is broken
-  if (process.platform === 'linux') {
-    fileMenu.push({
-      label: 'Quit',
-      click: () => app.quit()
-    })
-  }
-
-  var template = [
-    {
-      label: 'File',
-      submenu: fileMenu
-    },
-    {
-      label: 'Edit',
-      submenu: [
-        {
-          label: 'Cut',
-          accelerator: 'CmdOrCtrl+X',
-          role: 'cut'
-        },
-        {
-          label: 'Copy',
-          accelerator: 'CmdOrCtrl+C',
-          role: 'copy'
-        },
-        {
-          label: 'Paste Torrent Address',
-          accelerator: 'CmdOrCtrl+V',
-          role: 'paste'
-        },
-        {
-          label: 'Select All',
-          accelerator: 'CmdOrCtrl+A',
-          role: 'selectall'
-        }
-      ]
-    },
-    {
-      label: 'View',
-      submenu: [
-        {
-          label: 'Full Screen',
-          type: 'checkbox',
-          accelerator: process.platform === 'darwin'
-            ? 'Ctrl+Command+F'
-            : 'F11',
-          click: () => toggleFullScreen()
-        },
-        {
-          label: 'Float on Top',
-          type: 'checkbox',
-          click: () => toggleFloatOnTop()
-        },
-        {
-          type: 'separator'
-        },
-        {
-          label: 'Increase Volume',
-          accelerator: 'CmdOrCtrl+Up',
-          click: increaseVolume,
-          enabled: false
-        },
-        {
-          label: 'Decrease Volume',
-          accelerator: 'CmdOrCtrl+Down',
-          click: decreaseVolume,
-          enabled: false
-        },
-        {
-          type: 'separator'
-        },
-        {
-          label: 'Developer',
-          submenu: [
-            {
-              label: 'Developer Tools',
-              accelerator: process.platform === 'darwin'
-                ? 'Alt+Command+I'
-                : 'Ctrl+Shift+I',
-              click: toggleDevTools
-            },
-            {
-              label: 'Show WebTorrent Process',
-              accelerator: process.platform === 'darwin'
-                ? 'Alt+Command+P'
-                : 'Ctrl+Shift+P',
-              click: showWebTorrentWindow
-            },
-            {
-              type: 'separator'
-            },
-            {
-              label: 'Add Fake Airplay',
-              click: () => addFakeDevice('airplay')
-            },
-            {
-              label: 'Add Fake Chromecast',
-              click: () => addFakeDevice('chromecast')
-            }
-          ]
-        }
-      ]
-    },
-    {
-      label: 'Window',
-      role: 'window',
-      submenu: [
-        {
-          label: 'Minimize',
-          accelerator: 'CmdOrCtrl+M',
-          role: 'minimize'
-        }
-      ]
-    },
-    {
-      label: 'Help',
-      role: 'help',
-      submenu: [
-        {
-          label: 'Learn more about ' + config.APP_NAME,
-          click: () => electron.shell.openExternal('https://webtorrent.io')
-        },
-        {
-          label: 'Contribute on GitHub',
-          click: () => electron.shell.openExternal(config.GITHUB_URL)
-        },
-        {
-          type: 'separator'
-        },
-        {
-          label: 'Report an Issue...',
-          click: () => electron.shell.openExternal(config.GITHUB_URL + '/issues')
-        }
-      ]
-    }
-  ]
-
-  if (process.platform === 'darwin') {
-    // WebTorrent menu (OS X)
-    template.unshift({
-      label: config.APP_NAME,
-      submenu: [
-        {
-          label: 'About ' + config.APP_NAME,
-          role: 'about'
-        },
-        {
-          type: 'separator'
-        },
-        {
-          label: 'Services',
-          role: 'services',
-          submenu: []
-        },
-        {
-          type: 'separator'
-        },
-        {
-          label: 'Hide ' + config.APP_NAME,
-          accelerator: 'Command+H',
-          role: 'hide'
-        },
-        {
-          label: 'Hide Others',
-          accelerator: 'Command+Alt+H',
-          role: 'hideothers'
-        },
-        {
-          label: 'Show All',
-          role: 'unhide'
-        },
-        {
-          type: 'separator'
-        },
-        {
-          label: 'Quit',
-          accelerator: 'Command+Q',
-          click: () => app.quit()
-        }
-      ]
-    })
-
-    // Window menu (OS X)
-    template[4].submenu.push(
-      {
-        type: 'separator'
-      },
-      {
-        label: 'Bring All to Front',
-        role: 'front'
-      }
-    )
-  } else {
-    // Help menu (Windows, Linux)
-    template[4].submenu.push(
-      {
-        type: 'separator'
-      },
-      {
-        label: 'About ' + config.APP_NAME,
-        click: windows.createAboutWindow
-      }
-    )
-  }
-
-  return template
-}
-
-function getDockMenuTemplate () {
-  return [
-    {
-      label: 'Create New Torrent...',
-      accelerator: 'CmdOrCtrl+N',
-      click: showCreateTorrent
-    },
-    {
-      label: 'Open Torrent File...',
-      accelerator: 'CmdOrCtrl+O',
-      click: showOpenTorrentFile
-    },
-    {
-      label: 'Open Torrent Address...',
-      accelerator: 'CmdOrCtrl+U',
-      click: showOpenTorrentAddress
-    }
-  ]
-}

main/shortcuts.js

@@ -1,29 +0,0 @@
-module.exports = {
-  init,
-  registerPlayerShortcuts,
-  unregisterPlayerShortcuts
-}
-
-var electron = require('electron')
-var localShortcut = require('electron-localshortcut')
-
-var globalShortcut = electron.globalShortcut
-
-var menu = require('./menu')
-var windows = require('./windows')
-
-function init () {
-  // ⌘+Shift+F is an alternative fullscreen shortcut to the ones defined in menu.js.
-  // Electron does not support multiple accelerators for a single menu item, so this
-  // is registered separately here.
-  localShortcut.register('CmdOrCtrl+Shift+F', menu.toggleFullScreen)
-}
-
-function registerPlayerShortcuts () {
-  // Special "media key" for play/pause, available on some keyboards
-  globalShortcut.register('MediaPlayPause', () => windows.main.send('dispatch', 'playPause'))
-}
-
-function unregisterPlayerShortcuts () {
-  globalShortcut.unregister('MediaPlayPause')
-}

main/tray.js

@@ -1,52 +0,0 @@
-module.exports = {
-  init
-}
-
-var path = require('path')
-var electron = require('electron')
-
-var app = electron.app
-var Menu = electron.Menu
-var Tray = electron.Tray
-
-var windows = require('./windows')
-
-var trayIcon
-
-function init () {
-  // OS X has no tray icon
-  if (process.platform === 'darwin') return
-
-  trayIcon = new Tray(path.join(__dirname, '..', 'static', 'WebTorrentSmall.png'))
-
-  // On Windows, left click to open the app, right click for context menu
-  // On Linux, any click (right or left) opens the context menu
-  trayIcon.on('click', showApp)
-
-  // Show the tray context menu, and keep the available commands up to date
-  updateTrayMenu()
-  windows.main.on('show', updateTrayMenu)
-  windows.main.on('hide', updateTrayMenu)
-}
-
-function updateTrayMenu () {
-  var showHideMenuItem
-  if (windows.main.isVisible()) {
-    showHideMenuItem = { label: 'Hide to tray', click: hideApp }
-  } else {
-    showHideMenuItem = { label: 'Show', click: showApp }
-  }
-  var contextMenu = Menu.buildFromTemplate([
-    showHideMenuItem,
-    { label: 'Quit', click: () => app.quit() }
-  ])
-  trayIcon.setContextMenu(contextMenu)
-}
-
-function showApp () {
-  windows.main.show()
-}
-
-function hideApp () {
-  windows.main.hide()
-}

main/windows.js

@@ -1,124 +0,0 @@
-var windows = module.exports = {
-  about: null,
-  main: null,
-  createAboutWindow,
-  createWebTorrentHiddenWindow,
-  createMainWindow,
-  focusWindow
-}
-
-var electron = require('electron')
-
-var config = require('../config')
-var menu = require('./menu')
-
-function createAboutWindow () {
-  if (windows.about) {
-    return focusWindow(windows.about)
-  }
-  var win = windows.about = new electron.BrowserWindow({
-    backgroundColor: '#ECECEC',
-    show: false,
-    center: true,
-    resizable: false,
-    icon: config.APP_ICON + '.png',
-    title: process.platform !== 'darwin'
-      ? 'About ' + config.APP_WINDOW_TITLE
-      : '',
-    useContentSize: true, // Specify web page size without OS chrome
-    width: 300,
-    height: 170,
-    minimizable: false,
-    maximizable: false,
-    fullscreen: false,
-    skipTaskbar: true
-  })
-  win.loadURL(config.WINDOW_ABOUT)
-
-  // No window menu
-  win.setMenu(null)
-
-  win.webContents.on('did-finish-load', function () {
-    win.show()
-  })
-
-  win.once('closed', function () {
-    windows.about = null
-  })
-}
-
-function createWebTorrentHiddenWindow () {
-  var win = windows.webtorrent = new electron.BrowserWindow({
-    backgroundColor: '#1E1E1E',
-    show: false,
-    center: true,
-    title: 'webtorrent-hidden-window',
-    useContentSize: true,
-    width: 150,
-    height: 150,
-    minimizable: false,
-    maximizable: false,
-    resizable: false,
-    fullscreenable: false,
-    fullscreen: false,
-    skipTaskbar: true
-  })
-  win.loadURL(config.WINDOW_WEBTORRENT)
-
-  // Prevent killing the WebTorrent process
-  win.on('close', function (e) {
-    if (!electron.app.isQuitting) {
-      e.preventDefault()
-      win.hide()
-    }
-  })
-}
-
-function createMainWindow () {
-  if (windows.main) {
-    return focusWindow(windows.main)
-  }
-  var win = windows.main = new electron.BrowserWindow({
-    backgroundColor: '#1E1E1E',
-    darkTheme: true, // Forces dark theme (GTK+3)
-    icon: config.APP_ICON + '.png',
-    minWidth: 425,
-    minHeight: 38 + (120 * 2), // header height + 2 torrents
-    show: false, // Hide window until DOM finishes loading
-    title: config.APP_WINDOW_TITLE,
-    titleBarStyle: 'hidden-inset', // Hide OS chrome, except traffic light buttons (OS X)
-    useContentSize: true, // Specify web page size without OS chrome
-    width: 500,
-    height: 38 + (120 * 5) // header height + 4 torrents
-  })
-  win.loadURL(config.WINDOW_MAIN)
-
-  win.webContents.on('dom-ready', function () {
-    menu.onToggleFullScreen()
-  })
-
-  win.on('blur', menu.onWindowHide)
-  win.on('focus', menu.onWindowShow)
-
-  win.on('enter-full-screen', () => menu.onToggleFullScreen(true))
-  win.on('leave-full-screen', () => menu.onToggleFullScreen(false))
-
-  win.on('close', function (e) {
-    if (!electron.app.isQuitting) {
-      e.preventDefault()
-      win.send('dispatch', 'pause')
-      win.hide()
-    }
-  })
-
-  win.once('closed', function () {
-    windows.main = null
-  })
-}
-
-function focusWindow (win) {
-  if (win.isMinimized()) {
-    win.restore()
-  }
-  win.show() // shows and gives focus
-}

package.json

@@ -1,76 +1,111 @@
 {
   "name": "webtorrent-desktop",
-  "description": "WebTorrent, the streaming torrent client. For OS X, Windows, and Linux.",
-  "version": "0.3.3",
+  "description": "WebTorrent, the streaming torrent client. For Mac, Windows, and Linux.",
+  "version": "0.18.0",
   "author": {
-    "name": "Feross Aboukhadijeh",
-    "email": "feross@feross.org",
-    "url": "http://feross.org"
-  },
-  "bin": {
-    "webtorrent-desktop": "./bin/cmd.js"
+    "name": "WebTorrent, LLC",
+    "email": "feross@webtorrent.io",
+    "url": "https://webtorrent.io"
   },
   "bugs": {
     "url": "https://github.com/feross/webtorrent-desktop/issues"
   },
   "dependencies": {
-    "airplay-js": "guerrerocarlos/node-airplay-js",
-    "application-config": "^0.2.0",
-    "application-config-path": "^0.1.0",
+    "airplayer": "^2.0.0",
+    "application-config": "^1.0.0",
+    "arch": "^2.0.0",
+    "auto-launch": "^4.0.1",
     "bitfield": "^1.0.2",
+    "capture-frame": "^1.0.0",
     "chromecasts": "^1.8.0",
-    "create-torrent": "^3.22.1",
+    "cp-file": "^4.0.1",
+    "create-torrent": "^3.24.5",
+    "debounce": "^1.0.0",
     "deep-equal": "^1.0.1",
-    "dlnacasts": "^0.0.3",
-    "drag-drop": "^2.11.0",
-    "electron-localshortcut": "^0.6.0",
-    "electron-prebuilt": "0.37.5",
-    "hyperx": "^2.0.2",
-    "main-loop": "^3.2.0",
+    "dlnacasts": "^0.1.0",
+    "drag-drop": "^2.12.1",
+    "es6-error": "^4.0.0",
+    "fn-getter": "^1.0.0",
+    "iso-639-1": "^1.2.1",
+    "languagedetect": "^1.1.1",
+    "location-history": "^1.0.0",
+    "material-ui": "^0.16.0",
     "mkdirp": "^0.5.1",
     "musicmetadata": "^2.0.2",
     "network-address": "^1.1.0",
-    "path-exists": "^2.1.0",
+    "parse-torrent": "^5.7.3",
     "prettier-bytes": "^1.0.1",
+    "react": "^15.2.1",
+    "react-dom": "^15.2.1",
+    "react-tap-event-plugin": "^2.0.1",
     "rimraf": "^2.5.2",
+    "run-parallel": "^1.1.6",
+    "semver": "^5.1.0",
+    "simple-concat": "^1.0.0",
     "simple-get": "^2.0.0",
-    "upload-element": "^1.0.1",
-    "virtual-dom": "^2.1.1",
-    "webtorrent": "^0.90.0",
-    "winreg": "feross/node-winreg"
+    "srt-to-vtt": "^1.1.1",
+    "vlc-command": "^1.0.1",
+    "webtorrent": "0.x",
+    "winreg": "^1.2.0",
+    "zero-fill": "^2.2.3"
   },
   "devDependencies": {
-    "electron-osx-sign": "^0.3.0",
-    "electron-packager": "electron-userland/electron-packager",
-    "electron-winstaller": "feross/windows-installer#build",
+    "buble": "^0.15.2",
+    "cross-zip": "^2.0.1",
+    "depcheck": "^0.6.4",
+    "electron": "1.4.15",
+    "electron-osx-sign": "0.4.3",
+    "electron-packager": "~8.5.1",
+    "electron-winstaller": "~2.5.2",
     "gh-release": "^2.0.3",
-    "nobin-debian-installer": "^0.0.8",
-    "plist": "^1.2.0",
-    "standard": "^6.0.5"
+    "minimist": "^1.2.0",
+    "nobin-debian-installer": "0.0.10",
+    "nodemon": "^1.10.2",
+    "open": "0.0.5",
+    "plist": "^2.0.1",
+    "pngjs": "^3.0.0",
+    "run-series": "^1.1.4",
+    "spectron": "^3.3.0",
+    "standard": "*",
+    "tape": "^4.6.0",
+    "walk-sync": "^0.3.1"
+  },
+  "engines": {
+    "node": ">=4.0.0"
   },
   "homepage": "https://webtorrent.io",
   "keywords": [
     "desktop",
     "electron",
     "electron-app",
+    "hybrid webtorrent client",
+    "mad science",
+    "torrent",
+    "torrent client",
     "webtorrent"
   ],
   "license": "MIT",
   "main": "index.js",
   "optionalDependencies": {
-    "appdmg": "^0.3.6"
+    "appdmg": "^0.4.3"
   },
+  "private": true,
   "productName": "WebTorrent",
   "repository": {
     "type": "git",
     "url": "git://github.com/feross/webtorrent-desktop.git"
   },
   "scripts": {
+    "build": "buble src --output build",
     "clean": "node ./bin/clean.js",
-    "package": "npm install && npm prune && npm dedupe && node ./bin/package.js",
-    "size": "npm run package -- darwin && du -ch dist/WebTorrent-darwin-x64 | grep total",
-    "start": "electron .",
-    "test": "standard",
-    "update-authors": "./bin/update-authors.sh"
+    "gh-release": "gh-release",
+    "open-config": "node ./bin/open-config.js",
+    "package": "node ./bin/package.js",
+    "prepublish": "npm run build",
+    "start": "npm run build && electron .",
+    "test": "standard && depcheck --ignores=buble,nodemon,gh-release --ignore-dirs=build,dist && node ./bin/extra-lint.js",
+    "test-integration": "npm run build && node ./test",
+    "update-authors": "./bin/update-authors.sh",
+    "watch": "nodemon --exec \"npm run start\" --ext js,css --ignore build/ --ignore dist/"
   }
 }

renderer/lib/capture-video-frame.js

@@ -1,30 +0,0 @@
-module.exports = captureVideoFrame
-
-function captureVideoFrame (video, format) {
-  if (typeof video === 'string') {
-    video = document.querySelector(video)
-  }
-
-  if (video == null || video.nodeName !== 'VIDEO') {
-    throw new Error('First argument must be a <video> element or selector')
-  }
-
-  if (format == null) {
-    format = 'png'
-  }
-
-  if (format !== 'png' && format !== 'jpg' && format !== 'webp') {
-    throw new Error('Second argument must be one of "png", "jpg", or "webp"')
-  }
-
-  var canvas = document.createElement('canvas')
-  canvas.width = video.videoWidth
-  canvas.height = video.videoHeight
-
-  canvas.getContext('2d').drawImage(video, 0, 0)
-
-  var dataUri = canvas.toDataURL('image/' + format)
-  var data = dataUri.split(',')[1]
-
-  return new Buffer(data, 'base64')
-}

renderer/lib/cast.js

@@ -1,343 +0,0 @@
-// The Cast module talks to Airplay and Chromecast
-// * Modifies state when things change
-// * Starts and stops casting, provides remote video controls
-module.exports = {
-  init,
-  open,
-  close,
-  playPause,
-  seek,
-  setVolume
-}
-
-var airplay = require('airplay-js')
-var chromecasts = require('chromecasts')()
-var dlnacasts = require('dlnacasts')()
-
-var config = require('../../config')
-
-// App state. Cast modifies state.playing and state.errors in response to events
-var state
-
-// Callback to notify module users when state has changed
-var update
-
-// setInterval() for updating cast status
-var statusInterval = null
-
-// Start looking for cast devices on the local network
-function init (appState, callback) {
-  state = appState
-  update = callback
-
-  // Listen for devices: Chromecast, DLNA and Airplay
-  chromecasts.on('update', function (player) {
-    state.devices.chromecast = chromecastPlayer(player)
-  })
-
-  dlnacasts.on('update', function (player) {
-    state.devices.dlna = dlnaPlayer(player)
-  })
-
-  var browser = airplay.createBrowser()
-  browser.on('deviceOn', function (player) {
-    state.devices.airplay = airplayPlayer(player)
-  }).start()
-}
-
-// chromecast player implementation
-function chromecastPlayer (player) {
-  function addEvents () {
-    player.on('error', function (err) {
-      state.playing.location = 'local'
-      state.errors.push({
-        time: new Date().getTime(),
-        message: 'Could not connect to Chromecast. ' + err.message
-      })
-      update()
-    })
-    player.on('disconnect', function () {
-      state.playing.location = 'local'
-      update()
-    })
-  }
-
-  function open () {
-    var torrentSummary = state.saved.torrents.find((x) => x.infoHash === state.playing.infoHash)
-    player.play(state.server.networkURL, {
-      type: 'video/mp4',
-      title: config.APP_NAME + ' - ' + torrentSummary.name
-    }, function (err) {
-      if (err) {
-        state.playing.location = 'local'
-        state.errors.push({
-          time: new Date().getTime(),
-          message: 'Could not connect to Chromecast. ' + err.message
-        })
-      } else {
-        state.playing.location = 'chromecast'
-      }
-      update()
-    })
-  }
-
-  function playPause (callback) {
-    if (!state.playing.isPaused) player.pause(callback)
-    else player.play(null, null, callback)
-  }
-
-  function stop (callback) {
-    player.stop(callback)
-  }
-
-  function status () {
-    player.status(function (err, status) {
-      if (err) return console.log('error getting %s status: %o', state.playing.location, err)
-      state.playing.isPaused = status.playerState === 'PAUSED'
-      state.playing.currentTime = status.currentTime
-      state.playing.volume = status.volume.muted ? 0 : status.volume.level
-      update()
-    })
-  }
-
-  function seek (time, callback) {
-    player.seek(time, callback)
-  }
-
-  function volume (volume, callback) {
-    player.volume(volume, callback)
-  }
-
-  addEvents()
-
-  return {
-    player: player,
-    open: open,
-    playPause: playPause,
-    stop: stop,
-    status: status,
-    seek: seek,
-    volume: volume
-  }
-}
-
-// airplay player implementation
-function airplayPlayer (player) {
-  function open () {
-    player.play(state.server.networkURL, 0, function (res) {
-      if (res.statusCode !== 200) {
-        state.playing.location = 'local'
-        state.errors.push({
-          time: new Date().getTime(),
-          message: 'Could not connect to AirPlay.'
-        })
-      } else {
-        state.playing.location = 'airplay'
-      }
-      update()
-    })
-  }
-
-  function playPause (callback) {
-    if (!state.playing.isPaused) player.rate(0, callback)
-    else player.rate(1, callback)
-  }
-
-  function stop (callback) {
-    player.stop(callback)
-  }
-
-  function status () {
-    player.status(function (status) {
-      state.playing.isPaused = status.rate === 0
-      state.playing.currentTime = status.position
-      // TODO: get airplay volume, implementation needed. meanwhile set value in setVolume
-      // According to docs is in [-30 - 0] (db) range
-      // should be converted to [0 - 1] using (val / 30 + 1)
-      update()
-    })
-  }
-
-  function seek (time, callback) {
-    player.scrub(time, callback)
-  }
-
-  function volume (volume, callback) {
-    // TODO remove line below once we can fetch the information in status update
-    state.playing.volume = volume
-    volume = (volume - 1) * 30
-    player.volume(volume, callback)
-  }
-
-  return {
-    player: player,
-    open: open,
-    playPause: playPause,
-    stop: stop,
-    status: status,
-    seek: seek,
-    volume: volume
-  }
-}
-
-// DLNA player implementation
-function dlnaPlayer (player) {
-  function addEvents () {
-    player.on('error', function (err) {
-      state.playing.location = 'local'
-      state.errors.push({
-        time: new Date().getTime(),
-        message: 'Could not connect to DLNA. ' + err.message
-      })
-      update()
-    })
-    player.on('disconnect', function () {
-      state.playing.location = 'local'
-      update()
-    })
-  }
-
-  function open () {
-    var torrentSummary = state.saved.torrents.find((x) => x.infoHash === state.playing.infoHash)
-    player.play(state.server.networkURL, {
-      type: 'video/mp4',
-      title: config.APP_NAME + ' - ' + torrentSummary.name,
-      seek: state.playing.currentTime > 10 ? state.playing.currentTime : 0
-    }, function (err) {
-      if (err) {
-        state.playing.location = 'local'
-        state.errors.push({
-          time: new Date().getTime(),
-          message: 'Could not connect to DLNA. ' + err.message
-        })
-      } else {
-        state.playing.location = 'dlna'
-      }
-      update()
-    })
-  }
-
-  function playPause (callback) {
-    if (!state.playing.isPaused) player.pause(callback)
-    else player.play(null, null, callback)
-  }
-
-  function stop (callback) {
-    player.stop(callback)
-  }
-
-  function status () {
-    player.status(function (err, status) {
-      if (err) return console.log('error getting %s status: %o', state.playing.location, err)
-      state.playing.isPaused = status.playerState === 'PAUSED'
-      state.playing.currentTime = status.currentTime
-      state.playing.volume = status.volume.level
-      update()
-    })
-  }
-
-  function seek (time, callback) {
-    player.seek(time, callback)
-  }
-
-  function volume (volume, callback) {
-    player.volume(volume, function (err) {
-      // quick volume update
-      state.playing.volume = volume
-      callback(err)
-    })
-  }
-
-  addEvents()
-
-  return {
-    player: player,
-    open: open,
-    playPause: playPause,
-    stop: stop,
-    status: status,
-    seek: seek,
-    volume: volume
-  }
-}
-
-// Start polling cast device state, whenever we're connected
-function startStatusInterval () {
-  statusInterval = setInterval(function () {
-    var device = getDevice()
-    if (device) {
-      device.status()
-    }
-  }, 1000)
-}
-
-function open (location) {
-  if (state.playing.location !== 'local') {
-    throw new Error('You can\'t connect to ' + location + ' when already connected to another device')
-  }
-
-  state.playing.location = location + '-pending'
-  var device = getDevice(location)
-  if (device) {
-    getDevice(location).open()
-    startStatusInterval()
-  }
-
-  update()
-}
-
-// Stops casting, move video back to local screen
-function close () {
-  var device = getDevice()
-  if (device) {
-    device.stop(stoppedCasting)
-    clearInterval(statusInterval)
-  } else {
-    stoppedCasting()
-  }
-}
-
-function stoppedCasting () {
-  state.playing.location = 'local'
-  state.playing.jumpToTime = state.playing.currentTime
-  update()
-}
-
-function getDevice (location) {
-  if (location && state.devices[location]) {
-    return state.devices[location]
-  } else if (state.playing.location === 'chromecast') {
-    return state.devices.chromecast
-  } else if (state.playing.location === 'airplay') {
-    return state.devices.airplay
-  } else if (state.playing.location === 'dlna') {
-    return state.devices.dlna
-  } else {
-    return null
-  }
-}
-
-function playPause () {
-  var device = getDevice()
-  if (device) {
-    device.playPause(castCallback)
-  }
-}
-
-function seek (time) {
-  var device = getDevice()
-  if (device) {
-    device.seek(time, castCallback)
-  }
-}
-
-function setVolume (volume) {
-  var device = getDevice()
-  if (device) {
-    device.volume(volume, castCallback)
-  }
-}
-
-function castCallback () {
-  console.log('%s callback: %o', state.playing.location, arguments)
-}

renderer/lib/dispatcher.js

@@ -1,36 +0,0 @@
-module.exports = {
-  setDispatch,
-  dispatch,
-  dispatcher
-}
-
-// Memoize most of our event handlers, which are functions in the form
-// () => dispatch(<args>)
-// ... this prevents virtual-dom from updating every listener on every update()
-var _dispatchers = {}
-var _dispatch = () => {}
-
-function setDispatch (dispatch) {
-  _dispatch = dispatch
-}
-
-// Get a _memoized event handler that calls dispatch()
-// All args must be JSON-able
-function dispatcher (...args) {
-  var json = JSON.stringify(args)
-  var handler = _dispatchers[json]
-  if (!handler) {
-    _dispatchers[json] = (e) => {
-      // Don't click on whatever is below the button
-      e.stopPropagation()
-      // Don't regisiter clicks on disabled buttons
-      if (e.currentTarget.classList.contains('disabled')) return
-      _dispatch.apply(null, args)
-    }
-  }
-  return handler
-}
-
-function dispatch (...args) {
-  _dispatch.apply(null, args)
-}

renderer/lib/errors.js

@@ -1,8 +0,0 @@
-module.exports = {
-  UnplayableError
-}
-
-function UnplayableError () {
-  this.message = 'Can\'t play any files in torrent'
-}
-UnplayableError.prototype = Error

renderer/lib/location-history.js

@@ -1,74 +0,0 @@
-module.exports = LocationHistory
-
-function LocationHistory () {
-  if (!new.target) return new LocationHistory()
-  this._history = []
-  this._forward = []
-  this._pending = null
-}
-
-LocationHistory.prototype.go = function (page) {
-  console.log('go', page)
-  this.clearForward()
-  this._go(page)
-}
-
-LocationHistory.prototype._go = function (page) {
-  if (this._pending) return
-  if (page.onbeforeload) {
-    this._pending = page
-    page.onbeforeload((err) => {
-      if (this._pending !== page) return /* navigation was cancelled */
-      this._pending = null
-      if (err) return
-      this._history.push(page)
-    })
-  } else {
-    this._history.push(page)
-  }
-}
-
-LocationHistory.prototype.back = function () {
-  if (this._history.length <= 1) return
-
-  var page = this._history.pop()
-
-  if (page.onbeforeunload) {
-    page.onbeforeunload(() => {
-      this._forward.push(page)
-    })
-  } else {
-    this._forward.push(page)
-  }
-}
-
-LocationHistory.prototype.forward = function () {
-  if (this._forward.length === 0) return
-
-  var page = this._forward.pop()
-  this._go(page)
-}
-
-LocationHistory.prototype.clearForward = function () {
-  this._forward = []
-}
-
-LocationHistory.prototype.current = function () {
-  return this._history[this._history.length - 1]
-}
-
-LocationHistory.prototype.hasBack = function () {
-  return this._history.length > 1
-}
-
-LocationHistory.prototype.hasForward = function () {
-  return this._forward.length > 0
-}
-
-LocationHistory.prototype.pending = function () {
-  return this._pending
-}
-
-LocationHistory.prototype.clearPending = function () {
-  this._pending = null
-}

renderer/lib/torrent-player.js

@@ -1,29 +0,0 @@
-module.exports = {
-  isPlayable,
-  isVideo,
-  isAudio,
-  isPlayableTorrent
-}
-
-var path = require('path')
-
-/**
- * Determines whether a file in a torrent is audio/video we can play
- */
-function isPlayable (file) {
-  return isVideo(file) || isAudio(file)
-}
-
-function isVideo (file) {
-  var ext = path.extname(file.name)
-  return ['.mp4', '.m4v', '.webm', '.mov', '.mkv'].indexOf(ext) !== -1
-}
-
-function isAudio (file) {
-  var ext = path.extname(file.name)
-  return ['.mp3', '.aac', '.ogg', '.wav'].indexOf(ext) !== -1
-}
-
-function isPlayableTorrent (torrentSummary) {
-  return torrentSummary.files && torrentSummary.files.some(isPlayable)
-}

renderer/state.js

@@ -1,197 +0,0 @@
-var os = require('os')
-var path = require('path')
-
-var config = require('../config')
-var LocationHistory = require('./lib/location-history')
-
-module.exports = {
-  getInitialState,
-  getDefaultPlayState,
-  getDefaultSavedState
-}
-
-function getInitialState () {
-  return {
-    /*
-     * Temporary state disappears once the program exits.
-     * It can contain complex objects like open connections, etc.
-     */
-    client: null, /* the WebTorrent client */
-    server: null, /* local WebTorrent-to-HTTP server */
-    prev: {}, /* used for state diffing in updateElectron() */
-    location: new LocationHistory(),
-    window: {
-      bounds: null, /* {x, y, width, height } */
-      isFocused: true,
-      isFullScreen: false,
-      title: config.APP_WINDOW_TITLE
-    },
-    selectedInfoHash: null, /* the torrent we've selected to view details. see state.torrents */
-    playing: getDefaultPlayState(), /* the media (audio or video) that we're currently playing */
-    devices: { /* playback devices like Chromecast and AppleTV */
-      airplay: null, /* airplay client. finds and manages AppleTVs */
-      chromecast: null /* chromecast client. finds and manages Chromecasts */
-    },
-    dock: {
-      badge: 0,
-      progress: 0
-    },
-    modal: null, /* modal popover */
-    errors: [], /* user-facing errors */
-    nextTorrentKey: 1, /* identify torrents for IPC between the main and webtorrent windows */
-
-    /*
-     * Saved state is read from and written to a file every time the app runs.
-     * It should be simple and minimal and must be JSON.
-     *
-     * Config path:
-     *
-     * OS X                 ~/Library/Application Support/WebTorrent/config.json
-     * Linux (XDG)          $XDG_CONFIG_HOME/WebTorrent/config.json
-     * Linux (Legacy)       ~/.config/WebTorrent/config.json
-     * Windows (> Vista)    %LOCALAPPDATA%/WebTorrent/config.json
-     * Windows (XP, 2000)   %USERPROFILE%/Local Settings/Application Data/WebTorrent/config.json
-     *
-     * Also accessible via `require('application-config')('WebTorrent').filePath`
-     */
-    saved: {}
-  }
-}
-
-/* Whenever we stop playing video or audio, here's what we reset state.playing to */
-function getDefaultPlayState () {
-  return {
-    infoHash: null, /* the info hash of the torrent we're playing */
-    fileIndex: null, /* the zero-based index within the torrent */
-    location: 'local', /* 'local', 'chromecast', 'airplay' */
-    type: null, /* 'audio' or 'video', could be 'other' if ever support eg streaming to VLC */
-    currentTime: 0, /* seconds */
-    duration: 1, /* seconds */
-    isPaused: true,
-    isStalled: false,
-    lastTimeUpdate: 0, /* Unix time in ms */
-    mouseStationarySince: 0 /* Unix time in ms */
-  }
-}
-
-/* If the saved state file doesn't exist yet, here's what we use instead */
-function getDefaultSavedState () {
-  return {
-    version: 1, /* make sure we can upgrade gracefully later */
-    torrents: [
-      {
-        status: 'paused',
-        infoHash: '88594aaacbde40ef3e2510c47374ec0aa396c08e',
-        magnetURI: 'magnet:?xt=urn:btih:88594aaacbde40ef3e2510c47374ec0aa396c08e&dn=bbb_sunflower_1080p_30fps_normal.mp4&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80%2Fannounce&tr=udp%3A%2F%2Ftracker.publicbt.com%3A80%2Fannounce&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&tr=wss%3A%2F%2Ftracker.webtorrent.io&ws=http%3A%2F%2Fdistribution.bbb3d.renderfarming.net%2Fvideo%2Fmp4%2Fbbb_sunflower_1080p_30fps_normal.mp4',
-        displayName: 'Big Buck Bunny',
-        posterURL: 'bigBuckBunny.jpg',
-        torrentPath: 'bigBuckBunny.torrent',
-        files: [
-          {
-            'name': 'bbb_sunflower_1080p_30fps_normal.mp4',
-            'length': 276134947,
-            'numPiecesPresent': 0,
-            'numPieces': 527
-          }
-        ]
-      },
-      {
-        status: 'paused',
-        infoHash: '6a9759bffd5c0af65319979fb7832189f4f3c35d',
-        magnetURI: 'magnet:?xt=urn:btih:6a9759bffd5c0af65319979fb7832189f4f3c35d&dn=sintel.mp4&tr=udp%3A%2F%2Fexodus.desync.com%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.internetwarriors.net%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&tr=wss%3A%2F%2Ftracker.webtorrent.io&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fsintel-1024-surround.mp4',
-        displayName: 'Sintel',
-        posterURL: 'sintel.jpg',
-        torrentPath: 'sintel.torrent',
-        files: [
-          {
-            'name': 'sintel.mp4',
-            'length': 129241752,
-            'numPiecesPresent': 0,
-            'numPieces': 987
-          }
-        ]
-      },
-      {
-        status: 'paused',
-        infoHash: '02767050e0be2fd4db9a2ad6c12416ac806ed6ed',
-        magnetURI: 'magnet:?xt=urn:btih:02767050e0be2fd4db9a2ad6c12416ac806ed6ed&dn=tears_of_steel_1080p.webm&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&tr=wss%3A%2F%2Ftracker.webtorrent.io',
-        displayName: 'Tears of Steel',
-        posterURL: 'tearsOfSteel.jpg',
-        torrentPath: 'tearsOfSteel.torrent',
-        files: [
-          {
-            'name': 'tears_of_steel_1080p.webm',
-            'length': 571346576,
-            'numPiecesPresent': 0,
-            'numPieces': 2180
-          }
-        ]
-      },
-      {
-        status: 'paused',
-        infoHash: '6a02592d2bbc069628cd5ed8a54f88ee06ac0ba5',
-        magnetURI: 'magnet:?xt=urn:btih:6a02592d2bbc069628cd5ed8a54f88ee06ac0ba5&dn=CosmosLaundromatFirstCycle&tr=http%3A%2F%2Fbt1.archive.org%3A6969%2Fannounce&tr=http%3A%2F%2Fbt2.archive.org%3A6969%2Fannounce&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&tr=wss%3A%2F%2Ftracker.webtorrent.io&ws=http%3A%2F%2Fia601508.us.archive.org%2F14%2Fitems%2F&ws=http%3A%2F%2Fia801508.us.archive.org%2F14%2Fitems%2F&ws=https%3A%2F%2Farchive.org%2Fdownload%2F',
-        displayName: 'Cosmos Laundromat (Preview)',
-        posterURL: 'cosmosLaundromat.jpg',
-        torrentPath: 'cosmosLaundromat.torrent',
-        files: [
-          {
-            'name': 'Cosmos Laundromat - First Cycle (1080p).gif',
-            'length': 223580,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          },
-          {
-            'name': 'Cosmos Laundromat - First Cycle (1080p).mp4',
-            'length': 220087570,
-            'numPiecesPresent': 0,
-            'numPieces': 421
-          },
-          {
-            'name': 'Cosmos Laundromat - First Cycle (1080p).ogv',
-            'length': 56832560,
-            'numPiecesPresent': 0,
-            'numPieces': 109
-          },
-          {
-            'name': 'CosmosLaundromat-FirstCycle1080p.en.srt',
-            'length': 3949,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          },
-          {
-            'name': 'CosmosLaundromat-FirstCycle1080p.es.srt',
-            'length': 3907,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          },
-          {
-            'name': 'CosmosLaundromat-FirstCycle1080p.fr.srt',
-            'length': 4119,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          },
-          {
-            'name': 'CosmosLaundromat-FirstCycle1080p.it.srt',
-            'length': 3941,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          },
-          {
-            'name': 'CosmosLaundromatFirstCycle_meta.sqlite',
-            'length': 11264,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          },
-          {
-            'name': 'CosmosLaundromatFirstCycle_meta.xml',
-            'length': 1204,
-            'numPiecesPresent': 0,
-            'numPieces': 1
-          }
-        ]
-      }
-    ],
-    downloadPath: path.join(os.homedir(), 'Downloads')
-  }
-}

renderer/util.js

@@ -1,9 +0,0 @@
-var path = require('path')
-
-var config = require('../config')
-
-exports.getAbsoluteStaticPath = function (filePath) {
-  return path.isAbsolute(filePath)
-    ? filePath
-    : path.join(config.STATIC_PATH, filePath)
-}

renderer/views/app.js

@@ -1,86 +0,0 @@
-module.exports = App
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var Header = require('./header')
-var Player = require('./player')
-var TorrentList = require('./torrent-list')
-var Modals = {
-  'open-torrent-address-modal': require('./open-torrent-address-modal'),
-  'update-available-modal': require('./update-available-modal'),
-  'create-torrent-modal': require('./create-torrent-modal')
-}
-
-function App (state, dispatch) {
-  // Hide player controls while playing video, if the mouse stays still for a while
-  // Never hide the controls when:
-  // * The mouse is over the controls or we're scrubbing (see CSS)
-  // * The video is paused
-  // * The video is playing remotely on Chromecast or Airplay
-  var hideControls = state.location.current().url === 'player' &&
-    state.playing.mouseStationarySince !== 0 &&
-    new Date().getTime() - state.playing.mouseStationarySince > 2000 &&
-    !state.playing.isPaused &&
-    state.playing.location === 'local'
-
-  // Hide the header on Windows/Linux when in the player
-  // On OSX, the header appears as part of the title bar
-  var hideHeader = process.platform !== 'darwin' && state.location.current().url === 'player'
-
-  var cls = [
-    'view-' + state.location.current().url, /* e.g. view-home, view-player */
-    'is-' + process.platform /* e.g. is-darwin, is-win32, is-linux */
-  ]
-  if (state.window.isFullScreen) cls.push('is-fullscreen')
-  if (state.window.isFocused) cls.push('is-focused')
-  if (hideControls) cls.push('hide-video-controls')
-  if (hideHeader) cls.push('hide-header')
-
-  return hx`
-    <div class='app ${cls.join(' ')}'>
-      ${Header(state, dispatch)}
-      ${getErrorPopover()}
-      <div class='content'>${getView()}</div>
-      ${getModal()}
-    </div>
-  `
-
-  function getErrorPopover () {
-    var now = new Date().getTime()
-    var recentErrors = state.errors.filter((x) => now - x.time < 5000)
-
-    var errorElems = recentErrors.map(function (error) {
-      return hx`<div class='error'>${error.message}</div>`
-    })
-    return hx`
-    <div class='error-popover ${recentErrors.length > 0 ? 'visible' : 'hidden'}'>
-        <div class='title'>Error</div>
-        ${errorElems}
-      </div>
-    `
-  }
-
-  function getModal () {
-    if (state.modal) {
-      var contents = Modals[state.modal.id](state, dispatch)
-      return hx`
-        <div class='modal'>
-          <div class='modal-background'></div>
-          <div class='modal-content'>
-            ${contents}
-          </div>
-        </div>
-      `
-    }
-  }
-
-  function getView () {
-    if (state.location.current().url === 'home') {
-      return TorrentList(state, dispatch)
-    } else if (state.location.current().url === 'player') {
-      return Player(state, dispatch)
-    }
-  }
-}

renderer/views/create-torrent-modal.js

@@ -1,76 +0,0 @@
-module.exports = UpdateAvailableModal
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var path = require('path')
-
-var {dispatch} = require('../lib/dispatcher')
-
-function UpdateAvailableModal (state) {
-  // First, extract the base folder that the files are all in
-  var files = state.modal.files
-  var pathPrefix = files.map((x) => x.path).reduce(findCommonPrefix)
-  if (files.length > 0 && !pathPrefix.endsWith('/') && !pathPrefix.endsWith('\\')) {
-    pathPrefix = path.dirname(pathPrefix)
-  }
-
-  // Then, use the name of the base folder (or sole file, for a single file torrent)
-  // as the default name. Show all files relative to the base folder.
-  var defaultName = path.basename(pathPrefix)
-  var basePath = path.dirname(pathPrefix)
-  var fileElems = files.map(function (file) {
-    var relativePath = files.length === 0 ? file.name : path.relative(pathPrefix, file.path)
-    return hx`<div>${relativePath}</div>`
-  })
-
-  return hx`
-    <div class='create-torrent-modal'>
-      <p><strong>Create New Torrent</strong></p>
-      <p class='torrent-attribute'>
-        <label>Name:</label>
-        <div class='torrent-attribute'>${defaultName}</div>
-      </p>
-      <p class='torrent-attribute'>
-        <label>Path:</label>
-        <div class='torrent-attribute'>${pathPrefix}</div>
-      </p>
-      <p class='torrent-attribute'>
-        <label>Files:</label>
-        <div>${fileElems}</div>
-      </p>
-      <p>
-        <button class='primary' onclick=${handleOK}>Create Torrent</button>
-        <button class='cancel' onclick=${handleCancel}>Cancel</button>
-      </p>
-    </div>
-  `
-
-  function handleOK () {
-    var options = {
-      // TODO: we can't let the user choose their own name if we want WebTorrent
-      // to use the files in place rather than creating a new folder.
-      // name: document.querySelector('.torrent-name').value
-      name: defaultName,
-      path: basePath,
-      files: files
-    }
-    dispatch('createTorrent', options)
-    dispatch('exitModal')
-  }
-
-  function handleCancel () {
-    dispatch('exitModal')
-  }
-}
-
-// Finds the longest common prefix
-function findCommonPrefix (a, b) {
-  for (var i = 0; i < a.length && i < b.length; i++) {
-    if (a.charCodeAt(i) !== b.charCodeAt(i)) break
-  }
-  if (i === a.length) return a
-  if (i === b.length) return b
-  return a.substring(0, i)
-}

renderer/views/header.js

@@ -1,51 +0,0 @@
-module.exports = Header
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var {dispatcher} = require('../lib/dispatcher')
-
-function Header (state) {
-  return hx`
-    <div class='header'>
-      ${getTitle()}
-      <div class='nav left'>
-        <i.icon.back
-          class=${state.location.hasBack() ? '' : 'disabled'}
-          title='Back'
-          onclick=${dispatcher('back')}>
-          chevron_left
-        </i>
-        <i.icon.forward
-          class=${state.location.hasForward() ? '' : 'disabled'}
-          title='Forward'
-          onclick=${dispatcher('forward')}>
-          chevron_right
-        </i>
-      </div>
-      <div class='nav right'>
-        ${getAddButton()}
-      </div>
-    </div>
-  `
-
-  function getTitle () {
-    if (process.platform === 'darwin') {
-      return hx`<div class='title ellipsis'>${state.window.title}</div>`
-    }
-  }
-
-  function getAddButton () {
-    if (state.location.current().url !== 'player') {
-      return hx`
-        <i
-          class='icon add'
-          title='Add torrent'
-          onclick=${dispatcher('showOpenTorrentFile')}>
-          add
-        </i>
-      `
-    }
-  }
-}

renderer/views/open-torrent-address-modal.js

@@ -1,33 +0,0 @@
-module.exports = OpenTorrentAddressModal
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var {dispatch} = require('../lib/dispatcher')
-
-function OpenTorrentAddressModal (state) {
-  return hx`
-    <div class='open-torrent-address-modal'>
-      <p><strong>Enter torrent address or magnet link</strong></p>
-      <p>
-        <input id='add-torrent-url' type='text' autofocus onkeypress=${handleKeyPress} />
-        <button class='primary' onclick=${handleOK}>OK</button>
-        <button class='cancel' onclick=${handleCancel}>Cancel</button>
-      </p>
-    </div>
-  `
-}
-
-function handleKeyPress (e) {
-  if (e.which === 13) handleOK() /* hit Enter to submit */
-}
-
-function handleOK () {
-  dispatch('exitModal')
-  dispatch('addTorrent', document.querySelector('#add-torrent-url').value)
-}
-
-function handleCancel () {
-  dispatch('exitModal')
-}

renderer/views/player.js

@@ -1,387 +0,0 @@
-module.exports = Player
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var prettyBytes = require('prettier-bytes')
-var Bitfield = require('bitfield')
-
-var util = require('../util')
-var {dispatch, dispatcher} = require('../lib/dispatcher')
-
-// Shows a streaming video player. Standard features + Chromecast + Airplay
-function Player (state) {
-  // Show the video as large as will fit in the window, play immediately
-  // If the video is on Chromecast or Airplay, show a title screen instead
-  var showVideo = state.playing.location === 'local'
-  return hx`
-    <div
-      class='player'
-      onmousemove=${dispatcher('mediaMouseMoved')}>
-      ${showVideo ? renderMedia(state) : renderCastScreen(state)}
-      ${renderPlayerControls(state)}
-      </div>
-  `
-}
-
-function renderMedia (state) {
-  if (!state.server) return
-
-  // Unfortunately, play/pause can't be done just by modifying HTML.
-  // Instead, grab the DOM node and play/pause it if necessary
-  var mediaType = state.playing.type /* 'audio' or 'video' */
-  var mediaElement = document.querySelector(mediaType) /* get the <video> or <audio> tag */
-  if (mediaElement !== null) {
-    if (state.playing.isPaused && !mediaElement.paused) {
-      mediaElement.pause()
-    } else if (!state.playing.isPaused && mediaElement.paused) {
-      mediaElement.play()
-    }
-    // When the user clicks or drags on the progress bar, jump to that position
-    if (state.playing.jumpToTime) {
-      mediaElement.currentTime = state.playing.jumpToTime
-      state.playing.jumpToTime = null
-    }
-    // Set volume
-    if (state.playing.setVolume !== null && isFinite(state.playing.setVolume)) {
-      mediaElement.volume = state.playing.setVolume
-      state.playing.setVolume = null
-    }
-
-    state.playing.currentTime = mediaElement.currentTime
-    state.playing.duration = mediaElement.duration
-    state.playing.volume = mediaElement.volume
-  }
-
-  // Create the <audio> or <video> tag
-  var mediaTag = hx`
-    <div
-      src='${state.server.localURL}'
-      ondblclick=${dispatcher('toggleFullScreen')}
-      onloadedmetadata=${onLoadedMetadata}
-      onended=${onEnded}
-      onplay=${dispatcher('mediaPlaying')}
-      onpause=${dispatcher('mediaPaused')}
-      onstalling=${dispatcher('mediaStalled')}
-      ontimeupdate=${dispatcher('mediaTimeUpdate')}
-      autoplay>
-    </div>
-  `
-  mediaTag.tagName = mediaType
-
-  // Show the media.
-  return hx`
-    <div
-      class='letterbox'
-      onmousemove=${dispatcher('mediaMouseMoved')}>
-      ${mediaTag}
-      ${renderOverlay(state)}
-    </div>
-  `
-
-  // As soon as the video loads enough to know the video dimensions, resize the window
-  function onLoadedMetadata (e) {
-    if (mediaType !== 'video') return
-    var video = e.target
-    var dimensions = {
-      width: video.videoWidth,
-      height: video.videoHeight
-    }
-    dispatch('setDimensions', dimensions)
-  }
-
-  // When the video completes, pause the video instead of looping
-  function onEnded (e) {
-    state.playing.isPaused = true
-  }
-}
-
-function renderOverlay (state) {
-  var elems = []
-  var audioMetadataElem = renderAudioMetadata(state)
-  var spinnerElem = renderLoadingSpinner(state)
-  if (audioMetadataElem) elems.push(audioMetadataElem)
-  if (spinnerElem) elems.push(spinnerElem)
-
-  // Video fills the window, centered with black bars if necessary
-  // Audio gets a static poster image and a summary of the file metadata.
-  var style
-  if (state.playing.type === 'audio') {
-    style = { backgroundImage: cssBackgroundImagePoster(state) }
-  } else if (elems.length !== 0) {
-    style = { backgroundImage: cssBackgroundImageDarkGradient() }
-  } else {
-    return /* Video, not audio, and it isn't stalled, so no spinner. No overlay needed. */
-  }
-
-  return hx`
-    <div class='media-overlay-background' style=${style}>
-      <div class='media-overlay'>${elems}</div>
-    </div>
-  `
-}
-
-function renderAudioMetadata (state) {
-  var torrentSummary = getPlayingTorrentSummary(state)
-  var fileSummary = torrentSummary.files[state.playing.fileIndex]
-  if (!fileSummary.audioInfo) return
-  var info = fileSummary.audioInfo
-
-  // Get audio track info
-  var title = info.title
-  if (!title) {
-    title = fileSummary.name
-  }
-  var artist = info.artist && info.artist[0]
-  var album = info.album
-  if (album && info.year && !album.includes(info.year)) {
-    album += ' (' + info.year + ')'
-  }
-  var track
-  if (info.track && info.track.no && info.track.of) {
-    track = info.track.no + ' of ' + info.track.of
-  }
-
-  // Show a small info box in the middle of the screen with title/album/artist/etc
-  var elems = []
-  if (artist) elems.push(hx`<div class='audio-artist'><label>Artist</label>${artist}</div>`)
-  if (album) elems.push(hx`<div class='audio-album'><label>Album</label>${album}</div>`)
-  if (track) elems.push(hx`<div class='audio-track'><label>Track</label>${track}</div>`)
-
-  // Align the title with the artist/etc info, if available. Otherwise, center the title
-  var emptyLabel = hx`<label></label>`
-  elems.unshift(hx`<div class='audio-title'>${elems.length ? emptyLabel : undefined}${title}</div>`)
-
-  return hx`<div class='audio-metadata'>${elems}</div>`
-}
-
-function renderLoadingSpinner (state) {
-  if (state.playing.isPaused) return
-  var isProbablyStalled = state.playing.isStalled ||
-    (new Date().getTime() - state.playing.lastTimeUpdate > 2000)
-  if (!isProbablyStalled) return
-
-  var prog = getPlayingTorrentSummary(state).progress || {}
-  var fileProgress = 0
-  if (prog.files) {
-    var file = prog.files[state.playing.fileIndex]
-    fileProgress = Math.floor(100 * file.numPiecesPresent / file.numPieces)
-  }
-
-  return hx`
-    <div class='media-stalled'>
-      <div class='loading-spinner'>&nbsp;</div>
-      <div class='loading-status ellipsis'>
-        <span class='progress'>${fileProgress}%</span> downloaded,
-        <span>↓ ${prettyBytes(prog.downloadSpeed || 0)}/s</span>
-        <span>↑ ${prettyBytes(prog.uploadSpeed || 0)}/s</span>
-      </div>
-    </div>
-  `
-}
-
-function renderCastScreen (state) {
-  var castIcon, castType
-  if (state.playing.location.startsWith('chromecast')) {
-    castIcon = 'cast_connected'
-    castType = 'Chromecast'
-  } else if (state.playing.location.startsWith('airplay')) {
-    castIcon = 'airplay'
-    castType = 'AirPlay'
-  } else if (state.playing.location.startsWith('dlna')) {
-    castIcon = 'tv'
-    castType = 'DLNA'
-  }
-
-  var isStarting = state.playing.location.endsWith('-pending')
-  var castStatus = isStarting ? 'Connecting...' : 'Connected'
-
-  // Show a nice title image, if possible
-  var style = {
-    backgroundImage: cssBackgroundImagePoster(state)
-  }
-
-  return hx`
-    <div class='letterbox' style=${style}>
-      <div class='cast-screen'>
-        <i class='icon'>${castIcon}</i>
-        <div class='cast-type'>${castType}</div>
-        <div class='cast-status'>${castStatus}</div>
-      </div>
-    </div>
-  `
-}
-
-function renderPlayerControls (state) {
-  var positionPercent = 100 * state.playing.currentTime / state.playing.duration
-  var playbackCursorStyle = { left: 'calc(' + positionPercent + '% - 8px)' }
-
-  var elements = [
-    hx`
-      <div class='playback-bar'>
-        ${renderLoadingBar(state)}
-        <div class='playback-cursor' style=${playbackCursorStyle}></div>
-        <div class='scrub-bar'
-          draggable='true'
-          onclick=${handleScrub},
-          ondrag=${handleScrub}></div>
-      </div>
-    `,
-    hx`
-      <i class='icon fullscreen'
-        onclick=${dispatcher('toggleFullScreen')}>
-        ${state.window.isFullScreen ? 'fullscreen_exit' : 'fullscreen'}
-      </i>
-    `
-  ]
-
-  // If we've detected a Chromecast or AppleTV, the user can play video there
-  var isOnChromecast = state.playing.location.startsWith('chromecast')
-  var isOnAirplay = state.playing.location.startsWith('airplay')
-  var isOnDlna = state.playing.location.startsWith('dlna')
-  var chromecastClass, chromecastHandler, airplayClass, airplayHandler, dlnaClass, dlnaHandler
-  if (isOnChromecast) {
-    chromecastClass = 'active'
-    dlnaClass = 'disabled'
-    airplayClass = 'disabled'
-    chromecastHandler = dispatcher('closeDevice')
-    airplayHandler = undefined
-    dlnaHandler = undefined
-  } else if (isOnAirplay) {
-    chromecastClass = 'disabled'
-    dlnaClass = 'disabled'
-    airplayClass = 'active'
-    chromecastHandler = undefined
-    airplayHandler = dispatcher('closeDevice')
-    dlnaHandler = undefined
-  } else if (isOnDlna) {
-    chromecastClass = 'disabled'
-    dlnaClass = 'active'
-    airplayClass = 'disabled'
-    chromecastHandler = undefined
-    airplayHandler = undefined
-    dlnaHandler = dispatcher('closeDevice')
-  } else {
-    chromecastClass = ''
-    airplayClass = ''
-    dlnaClass = ''
-    chromecastHandler = dispatcher('openDevice', 'chromecast')
-    airplayHandler = dispatcher('openDevice', 'airplay')
-    dlnaHandler = dispatcher('openDevice', 'dlna')
-  }
-  if (state.devices.chromecast || isOnChromecast) {
-    var castIcon = isOnChromecast ? 'cast_connected' : 'cast'
-    elements.push(hx`
-      <i.icon.device
-        class=${chromecastClass}
-        onclick=${chromecastHandler}>
-        ${castIcon}
-      </i>
-    `)
-  }
-  if (state.devices.airplay || isOnAirplay) {
-    elements.push(hx`
-      <i.icon.device
-        class=${airplayClass}
-        onclick=${airplayHandler}>
-        airplay
-      </i>
-    `)
-  }
-  if (state.devices.dlna || isOnDlna) {
-    elements.push(hx`
-      <i.icon.device
-        class=${dlnaClass}
-        onclick=${dlnaHandler}>
-        tv
-      </i>
-    `)
-  }
-
-  // On OSX, the back button is in the title bar of the window; see app.js
-  // On other platforms, we render one over the video on mouseover
-  if (process.platform !== 'darwin') {
-    elements.push(hx`
-      <i.icon.back
-        onclick=${dispatcher('back')}>
-        chevron_left
-      </i>
-    `)
-  }
-
-  // Finally, the big button in the center plays or pauses the video
-  elements.push(hx`
-    <i class='icon play-pause' onclick=${dispatcher('playPause')}>
-      ${state.playing.isPaused ? 'play_arrow' : 'pause'}
-    </i>
-  `)
-
-  return hx`<div class='player-controls'>${elements}</div>`
-
-  // Handles a click or drag to scrub (jump to another position in the video)
-  function handleScrub (e) {
-    dispatch('mediaMouseMoved')
-    var windowWidth = document.querySelector('body').clientWidth
-    var fraction = e.clientX / windowWidth
-    var position = fraction * state.playing.duration /* seconds */
-    dispatch('playbackJump', position)
-  }
-}
-
-// Renders the loading bar. Shows which parts of the torrent are loaded, which
-// can be "spongey" / non-contiguous
-function renderLoadingBar (state) {
-  var torrentSummary = getPlayingTorrentSummary(state)
-  if (!torrentSummary.progress) {
-    return []
-  }
-
-  // Find all contiguous parts of the torrent which are loaded
-  var prog = torrentSummary.progress
-  var fileProg = prog.files[state.playing.fileIndex]
-  var parts = []
-  var lastPiecePresent = false
-  for (var i = fileProg.startPiece; i <= fileProg.endPiece; i++) {
-    var partPresent = Bitfield.prototype.get.call(prog.bitfield, i)
-    if (partPresent && !lastPiecePresent) {
-      parts.push({start: i - fileProg.startPiece, count: 1})
-    } else if (partPresent) {
-      parts[parts.length - 1].count++
-    }
-    lastPiecePresent = partPresent
-  }
-
-  // Output some bars to show which parts of the file are loaded
-  return hx`
-    <div class='loading-bar'>
-      ${parts.map(function (part) {
-        var style = {
-          left: (100 * part.start / fileProg.numPieces) + '%',
-          width: (100 * part.count / fileProg.numPieces) + '%'
-        }
-
-        return hx`<div class='loading-bar-part' style=${style}></div>`
-      })}
-    </div>
-  `
-}
-
-// Returns the CSS background-image string for a poster image + dark vignette
-function cssBackgroundImagePoster (state) {
-  var torrentSummary = getPlayingTorrentSummary(state)
-  if (!torrentSummary || !torrentSummary.posterURL) return ''
-  var posterURL = util.getAbsoluteStaticPath(torrentSummary.posterURL)
-  var cleanURL = posterURL.replace(/\\/g, '/')
-  return cssBackgroundImageDarkGradient() + `, url(${cleanURL})`
-}
-
-function cssBackgroundImageDarkGradient () {
-  return 'radial-gradient(circle at center, ' +
-    'rgba(0,0,0,0.4) 0%, rgba(0,0,0,1) 100%)'
-}
-
-function getPlayingTorrentSummary (state) {
-  var infoHash = state.playing.infoHash
-  return state.saved.torrents.find((x) => x.infoHash === infoHash)
-}

renderer/views/torrent-list.js

@@ -1,242 +0,0 @@
-module.exports = TorrentList
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-var prettyBytes = require('prettier-bytes')
-
-var util = require('../util')
-
-var TorrentPlayer = require('../lib/torrent-player')
-var {dispatcher} = require('../lib/dispatcher')
-
-function TorrentList (state) {
-  var torrentRows = state.saved.torrents.map(
-    (torrentSummary) => renderTorrent(torrentSummary))
-  return hx`
-    <div class='torrent-list'>
-      ${torrentRows}
-      <div class='torrent-placeholder'>
-        <span class='ellipsis'>Drop a torrent file here or paste a magnet link</span>
-      </div>
-    </div>`
-
-  // Renders a torrent in the torrent list
-  // Includes name, download status, play button, background image
-  // May be expanded for additional info, including the list of files inside
-  function renderTorrent (torrentSummary) {
-    // Get ephemeral data (like progress %) directly from the WebTorrent handle
-    var infoHash = torrentSummary.infoHash
-    var isSelected = infoHash && state.selectedInfoHash === infoHash
-
-    // Background image: show some nice visuals, like a frame from the movie, if possible
-    var style = {}
-    if (torrentSummary.posterURL) {
-      var gradient = isSelected
-        ? 'linear-gradient(to bottom, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 100%)'
-        : 'linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 100%)'
-      var posterURL = util.getAbsoluteStaticPath(torrentSummary.posterURL)
-      // Work around a Chrome bug (reproduced in vanilla Chrome, not just Electron):
-      // Backslashes in URLS in CSS cause bizarre string encoding issues
-      var cleanURL = posterURL.replace(/\\/g, '/')
-      style.backgroundImage = gradient + `, url('${cleanURL}')`
-    }
-
-    // Foreground: name of the torrent, basic info like size, play button,
-    // cast buttons if available, and delete
-    var classes = ['torrent']
-    //  playStatus turns the play button into a loading spinner or error icon
-    if (torrentSummary.playStatus) classes.push(torrentSummary.playStatus)
-    if (isSelected) classes.push('selected')
-    if (!infoHash) classes.push('disabled')
-    classes = classes.join(' ')
-    return hx`
-      <div style=${style} class=${classes}
-        oncontextmenu=${infoHash && dispatcher('openTorrentContextMenu', infoHash)}
-        onclick=${infoHash && dispatcher('toggleSelectTorrent', infoHash)}>
-        ${renderTorrentMetadata(torrentSummary)}
-        ${infoHash ? renderTorrentButtons(torrentSummary) : ''}
-        ${isSelected ? renderTorrentDetails(torrentSummary) : ''}
-      </div>
-    `
-  }
-
-  // Show name, download status, % complete
-  function renderTorrentMetadata (torrentSummary) {
-    var name = torrentSummary.name || 'Loading torrent...'
-    var elements = [hx`
-      <div class='name ellipsis'>${name}</div>
-    `]
-
-    // If it's downloading/seeding then show progress info
-    var prog = torrentSummary.progress
-    if (torrentSummary.status !== 'paused' && prog) {
-      var progress = Math.floor(100 * prog.progress)
-      var downloaded = prettyBytes(prog.downloaded)
-      var total = prettyBytes(prog.length || 0)
-      if (downloaded !== total) downloaded += ` / ${total}`
-
-      elements.push(hx`
-        <div class='status ellipsis'>
-          ${getFilesLength()}
-          <span>${getPeers()}</span>
-          <span>↓ ${prettyBytes(prog.downloadSpeed || 0)}/s</span>
-          <span>↑ ${prettyBytes(prog.uploadSpeed || 0)}/s</span>
-        </div>
-      `)
-      elements.push(hx`
-        <div class='status2 ellipsis'>
-          <span class='progress'>${progress}%</span>
-          <span>${downloaded}</span>
-        </div>
-      `)
-    }
-
-    return hx`<div class='metadata'>${elements}</div>`
-
-    function getPeers () {
-      var count = prog.numPeers === 1 ? 'peer' : 'peers'
-      return `${prog.numPeers} ${count}`
-    }
-
-    function getFilesLength () {
-      if (torrentSummary.files && torrentSummary.files.length > 1) {
-        return hx`<span class='files'>${torrentSummary.files.length} files</span>`
-      }
-    }
-  }
-
-  // Download button toggles between torrenting (DL/seed) and paused
-  // Play button starts streaming the torrent immediately, unpausing if needed
-  function renderTorrentButtons (torrentSummary) {
-    var infoHash = torrentSummary.infoHash
-
-    var playIcon, playTooltip, playClass
-    if (torrentSummary.playStatus === 'unplayable') {
-      playIcon = 'play_arrow'
-      playClass = 'disabled'
-      playTooltip = 'Sorry, WebTorrent can\'t play any of the files in this torrent. ' +
-        'View details and click on individual files to open them in another program.'
-    } else if (torrentSummary.playStatus === 'timeout') {
-      playIcon = 'warning'
-      playTooltip = 'Playback timed out. No seeds? No internet? Click to try again.'
-    } else {
-      playIcon = 'play_arrow'
-      playTooltip = 'Start streaming'
-    }
-
-    var downloadIcon, downloadTooltip
-    if (torrentSummary.status === 'seeding') {
-      downloadIcon = 'file_upload'
-      downloadTooltip = 'Seeding. Click to stop.'
-    } else if (torrentSummary.status === 'downloading') {
-      downloadIcon = 'file_download'
-      downloadTooltip = 'Torrenting. Click to stop.'
-    } else {
-      downloadIcon = 'file_download'
-      downloadTooltip = 'Click to start torrenting.'
-    }
-
-    // Only show the play button for torrents that contain playable media
-    var playButton
-    if (TorrentPlayer.isPlayableTorrent(torrentSummary)) {
-      playButton = hx`
-        <i.btn.icon.play
-          title=${playTooltip}
-          class=${playClass}
-          onclick=${dispatcher('play', infoHash)}>
-          ${playIcon}
-        </i>
-      `
-    }
-
-    return hx`
-      <div class='buttons'>
-        ${playButton}
-        <i.btn.icon.download
-          class=${torrentSummary.status}
-          title=${downloadTooltip}
-          onclick=${dispatcher('toggleTorrent', infoHash)}>
-          ${downloadIcon}
-        </i>
-        <i
-          class='icon delete'
-          title='Remove torrent'
-          onclick=${dispatcher('deleteTorrent', infoHash)}>
-          close
-        </i>
-      </div>
-    `
-  }
-
-  // Show files, per-file download status and play buttons, and so on
-  function renderTorrentDetails (torrentSummary) {
-    var infoHash = torrentSummary.infoHash
-    var filesElement
-    if (!torrentSummary.files) {
-      // We don't know what files this torrent contains
-      var message = torrentSummary.status === 'paused'
-        ? 'Failed to load torrent info. Click the download button to try again...'
-        : 'Downloading torrent info...'
-      filesElement = hx`<div class='files warning'>${message}</div>`
-    } else {
-      // We do know the files. List them and show download stats for each one
-      var fileRows = torrentSummary.files.map(
-        (file, index) => renderFileRow(torrentSummary, file, index))
-      filesElement = hx`
-        <div class='files'>
-          <strong>Files</strong>
-          <span class='open-folder'
-            onclick=${dispatcher('openFolder', infoHash)}>
-            Open folder
-          </span>
-          <table>
-            ${fileRows}
-          </table>
-        </div>
-      `
-    }
-
-    return hx`
-      <div class='torrent-details'>
-        ${filesElement}
-      </div>
-    `
-  }
-
-  // Show a single torrentSummary file in the details view for a single torrent
-  function renderFileRow (torrentSummary, file, index) {
-    // First, find out how much of the file we've downloaded
-    var isDone = false
-    var progress = ''
-    if (torrentSummary.progress && torrentSummary.progress.files) {
-      var fileProg = torrentSummary.progress.files[index]
-      isDone = fileProg.numPiecesPresent === fileProg.numPieces
-      progress = Math.round(100 * fileProg.numPiecesPresent / fileProg.numPieces) + '%'
-    }
-
-    // Second, render the file as a table row
-    var infoHash = torrentSummary.infoHash
-    var icon
-    var rowClass = ''
-    var handleClick
-    if (TorrentPlayer.isPlayable(file)) {
-      icon = 'play_arrow' /* playable? add option to play */
-      handleClick = dispatcher('play', infoHash, index)
-    } else {
-      icon = 'description' /* file icon, opens in OS default app */
-      rowClass = isDone ? '' : 'disabled'
-      handleClick = dispatcher('openFile', infoHash, index)
-    }
-    return hx`
-      <tr onclick=${handleClick} class='${rowClass}'>
-        <td class='col-icon'>
-          <i class='icon'>${icon}</i>
-        </td>
-        <td class='col-name'>${file.name}</td>
-        <td class='col-progress'>${progress}</td>
-        <td class='col-size'>${prettyBytes(file.length)}</td>
-      </tr>
-    `
-  }
-}

renderer/views/update-available-modal.js

@@ -1,32 +0,0 @@
-module.exports = UpdateAvailableModal
-
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var electron = require('electron')
-
-var {dispatch} = require('../lib/dispatcher')
-
-function UpdateAvailableModal (state) {
-  return hx`
-    <div class='update-available-modal'>
-      <p><strong>A new version of WebTorrent is available: v${state.modal.version}</strong></p>
-      <p>We have an auto-updater for Windows and Mac. We don't have one for Linux yet, so you'll have to download the new version manually.</p>
-      <p>
-        <button class='primary' onclick=${handleOK}>Show Download Page</button>
-        <button class='cancel' onclick=${handleCancel}>Skip This Release</button>
-      </p>
-    </div>
-  `
-
-  function handleOK () {
-    electron.shell.openExternal('https://github.com/feross/webtorrent-desktop/releases')
-    dispatch('exitModal')
-  }
-
-  function handleCancel () {
-    dispatch('skipVersion', state.modal.version)
-    dispatch('exitModal')
-  }
-}

renderer/webtorrent.js

@@ -1,312 +0,0 @@
-// To keep the UI snappy, we run WebTorrent in its own hidden window, a separate
-// process from the main window.
-console.time('init')
-
-var WebTorrent = require('webtorrent')
-var defaultAnnounceList = require('create-torrent').announceList
-var deepEqual = require('deep-equal')
-var electron = require('electron')
-var fs = require('fs')
-var mkdirp = require('mkdirp')
-var musicmetadata = require('musicmetadata')
-var networkAddress = require('network-address')
-var path = require('path')
-
-var crashReporter = require('../crash-reporter')
-var config = require('../config')
-var torrentPoster = require('./lib/torrent-poster')
-
-// Report when the process crashes
-crashReporter.init()
-
-// Send & receive messages from the main window
-var ipc = electron.ipcRenderer
-
-// Force use of webtorrent trackers on all torrents
-global.WEBTORRENT_ANNOUNCE = defaultAnnounceList
-  .map((arr) => arr[0])
-  .filter((url) => url.indexOf('wss://') === 0 || url.indexOf('ws://') === 0)
-
-// Connect to the WebTorrent and BitTorrent networks. WebTorrent Desktop is a hybrid
-// client, as explained here: https://webtorrent.io/faq
-var client = window.client = new WebTorrent()
-
-// WebTorrent-to-HTTP streaming sever
-var server = window.server = null
-
-// Used for diffing, so we only send progress updates when necessary
-var prevProgress = window.prevProgress = null
-
-init()
-
-function init () {
-  client.on('warning', (err) => ipc.send('wt-warning', null, err.message))
-  client.on('error', (err) => ipc.send('wt-error', null, err.message))
-
-  ipc.on('wt-start-torrenting', (e, torrentKey, torrentID, path, fileModtimes) =>
-    startTorrenting(torrentKey, torrentID, path, fileModtimes))
-  ipc.on('wt-stop-torrenting', (e, infoHash) =>
-    stopTorrenting(infoHash))
-  ipc.on('wt-create-torrent', (e, torrentKey, options) =>
-    createTorrent(torrentKey, options))
-  ipc.on('wt-save-torrent-file', (e, torrentKey) =>
-    saveTorrentFile(torrentKey))
-  ipc.on('wt-generate-torrent-poster', (e, torrentKey) =>
-    generateTorrentPoster(torrentKey))
-  ipc.on('wt-get-audio-metadata', (e, infoHash, index) =>
-    getAudioMetadata(infoHash, index))
-  ipc.on('wt-start-server', (e, infoHash, index) =>
-    startServer(infoHash, index))
-  ipc.on('wt-stop-server', (e) =>
-    stopServer())
-
-  ipc.send('ipcReadyWebTorrent')
-
-  setInterval(updateTorrentProgress, 1000)
-}
-
-// Starts a given TorrentID, which can be an infohash, magnet URI, etc. Returns WebTorrent object
-// See https://github.com/feross/webtorrent/blob/master/docs/api.md#clientaddtorrentid-opts-function-ontorrent-torrent-
-function startTorrenting (torrentKey, torrentID, path, fileModtimes) {
-  console.log('starting torrent %s: %s', torrentKey, torrentID)
-  var torrent = client.add(torrentID, {
-    path: path,
-    fileModtimes: fileModtimes
-  })
-  torrent.key = torrentKey
-  addTorrentEvents(torrent)
-  return torrent
-}
-
-function stopTorrenting (infoHash) {
-  var torrent = client.get(infoHash)
-  torrent.destroy()
-}
-
-// Create a new torrent, start seeding
-function createTorrent (torrentKey, options) {
-  console.log('creating torrent %s', torrentKey, options)
-  var torrent = client.seed(options.files, options)
-  torrent.key = torrentKey
-  addTorrentEvents(torrent)
-  ipc.send('wt-new-torrent')
-}
-
-function addTorrentEvents (torrent) {
-  torrent.on('warning', (err) =>
-    ipc.send('wt-warning', torrent.key, err.message))
-  torrent.on('error', (err) =>
-    ipc.send('wt-error', torrent.key, err.message))
-  torrent.on('infoHash', () =>
-    ipc.send('wt-infohash', torrent.key, torrent.infoHash))
-  torrent.on('metadata', torrentMetadata)
-  torrent.on('ready', torrentReady)
-  torrent.on('done', torrentDone)
-
-  function torrentMetadata () {
-    var info = getTorrentInfo(torrent)
-    ipc.send('wt-metadata', torrent.key, info)
-
-    updateTorrentProgress()
-  }
-
-  function torrentReady () {
-    var info = getTorrentInfo(torrent)
-    ipc.send('wt-ready', torrent.key, info)
-    ipc.send('wt-ready-' + torrent.infoHash, torrent.key, info) // TODO: hack
-
-    updateTorrentProgress()
-  }
-
-  function torrentDone () {
-    var info = getTorrentInfo(torrent)
-    ipc.send('wt-done', torrent.key, info)
-
-    updateTorrentProgress()
-
-    torrent.getFileModtimes(function (err, fileModtimes) {
-      if (err) return onError(err)
-      ipc.send('wt-file-modtimes', torrent.key, fileModtimes)
-    })
-  }
-}
-
-// Produces a JSON saveable summary of a torrent
-function getTorrentInfo (torrent) {
-  return {
-    infoHash: torrent.infoHash,
-    magnetURI: torrent.magnetURI,
-    name: torrent.name,
-    path: torrent.path,
-    files: torrent.files.map(getTorrentFileInfo),
-    bytesReceived: torrent.received
-  }
-}
-
-// Produces a JSON saveable summary of a file in a torrent
-function getTorrentFileInfo (file) {
-  return {
-    name: file.name,
-    length: file.length,
-    path: file.path,
-    numPiecesPresent: 0,
-    numPieces: null
-  }
-}
-
-// Every time we resolve a magnet URI, save the torrent file so that we never
-// have to download it again. Never ask the DHT the same question twice.
-function saveTorrentFile (torrentKey) {
-  var torrent = getTorrent(torrentKey)
-  checkIfTorrentFileExists(torrent.infoHash, function (torrentPath, exists) {
-    if (exists) {
-      // We've already saved the file
-      return ipc.send('wt-file-saved', torrentKey, torrentPath)
-    }
-
-    // Otherwise, save the .torrent file, under the app config folder
-    fs.mkdir(config.CONFIG_TORRENT_PATH, function (_) {
-      fs.writeFile(torrentPath, torrent.torrentFile, function (err) {
-        if (err) return console.log('error saving torrent file %s: %o', torrentPath, err)
-        console.log('saved torrent file %s', torrentPath)
-        return ipc.send('wt-file-saved', torrentKey, torrentPath)
-      })
-    })
-  })
-}
-
-// Checks whether we've already resolved a given infohash to a torrent file
-// Calls back with (torrentPath, exists). Logs, does not call back on error
-function checkIfTorrentFileExists (infoHash, cb) {
-  var torrentPath = path.join(config.CONFIG_TORRENT_PATH, infoHash + '.torrent')
-  fs.exists(torrentPath, function (exists) {
-    cb(torrentPath, exists)
-  })
-}
-
-// Save a JPG that represents a torrent.
-// Auto chooses either a frame from a video file, an image, etc
-function generateTorrentPoster (torrentKey) {
-  var torrent = getTorrent(torrentKey)
-  torrentPoster(torrent, function (err, buf, extension) {
-    if (err) return console.log('error generating poster: %o', err)
-    // save it for next time
-    mkdirp(config.CONFIG_POSTER_PATH, function (err) {
-      if (err) return console.log('error creating poster dir: %o', err)
-      var posterFilePath = path.join(config.CONFIG_POSTER_PATH, torrent.infoHash + extension)
-      fs.writeFile(posterFilePath, buf, function (err) {
-        if (err) return console.log('error saving poster: %o', err)
-        // show the poster
-        ipc.send('wt-poster', torrentKey, posterFilePath)
-      })
-    })
-  })
-}
-
-function updateTorrentProgress () {
-  var progress = getTorrentProgress()
-  // TODO: diff torrent-by-torrent, not once for the whole update
-  if (prevProgress && deepEqual(progress, prevProgress, {strict: true})) {
-    return /* don't send heavy object if it hasn't changed */
-  }
-  ipc.send('wt-progress', progress)
-  prevProgress = progress
-}
-
-function getTorrentProgress () {
-  // First, track overall progress
-  var progress = client.progress
-  var hasActiveTorrents = client.torrents.some(function (torrent) {
-    return torrent.progress !== 1
-  })
-
-  // Track progress for every file in each torrent
-  // TODO: ideally this would be tracked by WebTorrent, which could do it
-  // more efficiently than looping over torrent.bitfield
-  var torrentProg = client.torrents.map(function (torrent) {
-    var fileProg = torrent.files && torrent.files.map(function (file, index) {
-      var numPieces = file._endPiece - file._startPiece + 1
-      var numPiecesPresent = 0
-      for (var piece = file._startPiece; piece <= file._endPiece; piece++) {
-        if (torrent.bitfield.get(piece)) numPiecesPresent++
-      }
-      return {
-        startPiece: file._startPiece,
-        endPiece: file._endPiece,
-        numPieces,
-        numPiecesPresent
-      }
-    })
-    return {
-      torrentKey: torrent.key,
-      ready: torrent.ready,
-      progress: torrent.progress,
-      downloaded: torrent.downloaded,
-      downloadSpeed: torrent.downloadSpeed,
-      uploadSpeed: torrent.uploadSpeed,
-      numPeers: torrent.numPeers,
-      length: torrent.length,
-      bitfield: torrent.bitfield,
-      files: fileProg
-    }
-  })
-
-  return {
-    torrents: torrentProg,
-    progress,
-    hasActiveTorrents
-  }
-}
-
-function startServer (infoHash, index) {
-  var torrent = client.get(infoHash)
-  if (torrent.ready) startServerFromReadyTorrent(torrent, index)
-  else torrent.on('ready', () => startServerFromReadyTorrent(torrent, index))
-}
-
-function startServerFromReadyTorrent (torrent, index, cb) {
-  if (server) return
-
-  // start the streaming torrent-to-http server
-  server = torrent.createServer()
-  server.listen(0, function () {
-    var port = server.address().port
-    var urlSuffix = ':' + port + '/' + index
-    var info = {
-      torrentKey: torrent.key,
-      localURL: 'http://localhost' + urlSuffix,
-      networkURL: 'http://' + networkAddress() + urlSuffix
-    }
-
-    ipc.send('wt-server-running', info)
-    ipc.send('wt-server-' + torrent.infoHash, info) // TODO: hack
-  })
-}
-
-function stopServer () {
-  if (!server) return
-  server.destroy()
-  server = null
-}
-
-function getAudioMetadata (infoHash, index) {
-  var torrent = client.get(infoHash)
-  var file = torrent.files[index]
-  musicmetadata(file.createReadStream(), function (err, info) {
-    if (err) return
-    console.log('got audio metadata for %s: %o', file.name, info)
-    ipc.send('wt-audio-metadata', infoHash, index, info)
-  })
-}
-
-// Gets a WebTorrent handle by torrentKey
-// Throws an Error if we're not currently torrenting anything w/ that key
-function getTorrent (torrentKey) {
-  var ret = client.torrents.find((x) => x.key === torrentKey)
-  if (!ret) throw new Error('missing torrent key ' + torrentKey)
-  return ret
-}
-
-function onError (err) {
-  console.log(err)
-}

src/config.js

@@ -0,0 +1,174 @@
+const appConfig = require('application-config')('WebTorrent')
+const path = require('path')
+const electron = require('electron')
+const arch = require('arch')
+
+const APP_NAME = 'WebTorrent'
+const APP_TEAM = 'WebTorrent, LLC'
+const APP_VERSION = require('../package.json').version
+
+const IS_TEST = isTest()
+const PORTABLE_PATH = IS_TEST
+  ? path.join(process.platform === 'win32' ? 'C:\\Windows\\Temp' : '/tmp', 'WebTorrentTest')
+  : path.join(path.dirname(process.execPath), 'Portable Settings')
+const IS_PRODUCTION = isProduction()
+const IS_PORTABLE = isPortable()
+
+const UI_HEADER_HEIGHT = 38
+const UI_TORRENT_HEIGHT = 100
+
+module.exports = {
+  ANNOUNCEMENT_URL: 'https://webtorrent.io/desktop/announcement',
+  AUTO_UPDATE_URL: 'https://webtorrent.io/desktop/update',
+  CRASH_REPORT_URL: 'https://webtorrent.io/desktop/crash-report',
+  TELEMETRY_URL: 'https://webtorrent.io/desktop/telemetry',
+
+  APP_COPYRIGHT: 'Copyright © 2014-2017 ' + APP_TEAM,
+  APP_FILE_ICON: path.join(__dirname, '..', 'static', 'WebTorrentFile'),
+  APP_ICON: path.join(__dirname, '..', 'static', 'WebTorrent'),
+  APP_NAME: APP_NAME,
+  APP_TEAM: APP_TEAM,
+  APP_VERSION: APP_VERSION,
+  APP_WINDOW_TITLE: APP_NAME + ' (BETA)',
+
+  CONFIG_PATH: getConfigPath(),
+
+  DEFAULT_TORRENTS: [
+    {
+      testID: 'bbb',
+      name: 'Big Buck Bunny',
+      posterFileName: 'bigBuckBunny.jpg',
+      torrentFileName: 'bigBuckBunny.torrent'
+    },
+    {
+      testID: 'cosmos',
+      name: 'Cosmos Laundromat (Preview)',
+      posterFileName: 'cosmosLaundromat.jpg',
+      torrentFileName: 'cosmosLaundromat.torrent'
+    },
+    {
+      testID: 'sintel',
+      name: 'Sintel',
+      posterFileName: 'sintel.jpg',
+      torrentFileName: 'sintel.torrent'
+    },
+    {
+      testID: 'tears',
+      name: 'Tears of Steel',
+      posterFileName: 'tearsOfSteel.jpg',
+      torrentFileName: 'tearsOfSteel.torrent'
+    },
+    {
+      testID: 'wired',
+      name: 'The WIRED CD - Rip. Sample. Mash. Share',
+      posterFileName: 'wiredCd.jpg',
+      torrentFileName: 'wiredCd.torrent'
+    }
+  ],
+
+  DELAYED_INIT: 3000 /* 3 seconds */,
+
+  DEFAULT_DOWNLOAD_PATH: getDefaultDownloadPath(),
+
+  GITHUB_URL: 'https://github.com/feross/webtorrent-desktop',
+  GITHUB_URL_ISSUES: 'https://github.com/feross/webtorrent-desktop/issues',
+  GITHUB_URL_RAW: 'https://raw.githubusercontent.com/feross/webtorrent-desktop/master',
+
+  HOME_PAGE_URL: 'https://webtorrent.io',
+
+  IS_PORTABLE: IS_PORTABLE,
+  IS_PRODUCTION: IS_PRODUCTION,
+  IS_TEST: IS_TEST,
+
+  OS_SYSARCH: arch() === 'x64' ? 'x64' : 'ia32',
+
+  POSTER_PATH: path.join(getConfigPath(), 'Posters'),
+  ROOT_PATH: path.join(__dirname, '..'),
+  STATIC_PATH: path.join(__dirname, '..', 'static'),
+  TORRENT_PATH: path.join(getConfigPath(), 'Torrents'),
+
+  WINDOW_ABOUT: 'file://' + path.join(__dirname, '..', 'static', 'about.html'),
+  WINDOW_MAIN: 'file://' + path.join(__dirname, '..', 'static', 'main.html'),
+  WINDOW_WEBTORRENT: 'file://' + path.join(__dirname, '..', 'static', 'webtorrent.html'),
+
+  WINDOW_INITIAL_BOUNDS: {
+    width: 500,
+    height: UI_HEADER_HEIGHT + (UI_TORRENT_HEIGHT * 6) // header + 6 torrents
+  },
+  WINDOW_MIN_HEIGHT: UI_HEADER_HEIGHT + (UI_TORRENT_HEIGHT * 2), // header + 2 torrents
+  WINDOW_MIN_WIDTH: 425,
+
+  UI_HEADER_HEIGHT: UI_HEADER_HEIGHT,
+  UI_TORRENT_HEIGHT: UI_TORRENT_HEIGHT
+}
+
+function getConfigPath () {
+  if (IS_PORTABLE) {
+    return PORTABLE_PATH
+  } else {
+    return path.dirname(appConfig.filePath)
+  }
+}
+
+function getDefaultDownloadPath () {
+  if (IS_PORTABLE) {
+    return path.join(getConfigPath(), 'Downloads')
+  } else {
+    return getPath('downloads')
+  }
+}
+
+function getPath (key) {
+  if (!process.versions.electron) {
+    // Node.js process
+    return ''
+  } else if (process.type === 'renderer') {
+    // Electron renderer process
+    return electron.remote.app.getPath(key)
+  } else {
+    // Electron main process
+    return electron.app.getPath(key)
+  }
+}
+
+function isTest () {
+  return process.env.NODE_ENV === 'test'
+}
+
+function isPortable () {
+  if (IS_TEST) {
+    return true
+  }
+
+  if (process.platform !== 'win32' || !IS_PRODUCTION) {
+    // Fast path: Non-Windows platforms should not check for path on disk
+    return false
+  }
+
+  const fs = require('fs')
+
+  try {
+    // This line throws if the "Portable Settings" folder does not exist, and does
+    // nothing otherwise.
+    fs.accessSync(PORTABLE_PATH, fs.constants.R_OK | fs.constants.W_OK)
+    return true
+  } catch (err) {
+    return false
+  }
+}
+
+function isProduction () {
+  if (!process.versions.electron) {
+    // Node.js process
+    return false
+  }
+  if (process.platform === 'darwin') {
+    return !/\/Electron\.app\//.test(process.execPath)
+  }
+  if (process.platform === 'win32') {
+    return !/\\electron\.exe$/.test(process.execPath)
+  }
+  if (process.platform === 'linux') {
+    return !/\/electron$/.test(process.execPath)
+  }
+}

src/crash-reporter.js

@@ -2,14 +2,13 @@ module.exports = {
   init
 }
 
-var config = require('./config')
-var electron = require('electron')
-
 function init () {
+  const config = require('./config')
+  const electron = require('electron')
+
   electron.crashReporter.start({
     companyName: config.APP_NAME,
     productName: config.APP_NAME,
     submitURL: config.CRASH_REPORT_URL
   })
-  console.log('crash reporter started')
 }

src/main/announcement.js

@@ -0,0 +1,57 @@
+module.exports = {
+  init
+}
+
+const electron = require('electron')
+
+const config = require('../config')
+const log = require('./log')
+
+const ANNOUNCEMENT_URL = config.ANNOUNCEMENT_URL +
+  '?version=' + config.APP_VERSION +
+  '&platform=' + process.platform
+
+/**
+ * In certain situations, the WebTorrent team may need to show an announcement to
+ * all WebTorrent Desktop users. For example: a security notice, or an update
+ * notification (if the auto-updater stops working).
+ *
+ * When there is an announcement, the `ANNOUNCEMENT_URL` endpoint should return an
+ * HTTP 200 status code with a JSON object like this:
+ *
+ *   {
+ *     "title": "WebTorrent Desktop Announcement",
+ *     "message": "Security Issue in v0.xx",
+ *     "detail": "Please update to v0.xx as soon as possible..."
+ *   }
+ */
+function init () {
+  const get = require('simple-get')
+  get.concat(ANNOUNCEMENT_URL, onResponse)
+}
+
+function onResponse (err, res, data) {
+  if (err) return log(`Failed to retrieve announcement: ${err.message}`)
+  if (res.statusCode !== 200) return log('No announcement available')
+
+  try {
+    data = JSON.parse(data.toString())
+  } catch (err) {
+    // Support plaintext announcement messages, using a default title.
+    data = {
+      title: 'WebTorrent Desktop Announcement',
+      message: data.toString(),
+      detail: data.toString()
+    }
+  }
+
+  electron.dialog.showMessageBox({
+    type: 'info',
+    buttons: ['OK'],
+    title: data.title,
+    message: data.message,
+    detail: data.detail
+  }, noop)
+}
+
+function noop () {}

src/main/dialog.js

@@ -0,0 +1,124 @@
+module.exports = {
+  openSeedFile,
+  openSeedDirectory,
+  openTorrentFile,
+  openTorrentAddress,
+  openFiles
+}
+
+const electron = require('electron')
+
+const log = require('./log')
+const windows = require('./windows')
+
+/**
+ * Show open dialog to create a single-file torrent.
+ */
+function openSeedFile () {
+  if (!windows.main.win) return
+  log('openSeedFile')
+  const opts = {
+    title: 'Select a file for the torrent.',
+    properties: [ 'openFile' ]
+  }
+  showOpenSeed(opts)
+}
+
+/*
+ * Show open dialog to create a single-file or single-directory torrent. On
+ * Windows and Linux, open dialogs are for files *or* directories only, not both,
+ * so this function shows a directory dialog on those platforms.
+ */
+function openSeedDirectory () {
+  if (!windows.main.win) return
+  log('openSeedDirectory')
+  const opts = process.platform === 'darwin'
+    ? {
+      title: 'Select a file or folder for the torrent.',
+      properties: [ 'openFile', 'openDirectory' ]
+    }
+    : {
+      title: 'Select a folder for the torrent.',
+      properties: [ 'openDirectory' ]
+    }
+  showOpenSeed(opts)
+}
+
+/*
+ * Show flexible open dialog that supports selecting .torrent files to add, or
+ * a file or folder to create a single-file or single-directory torrent.
+ */
+function openFiles () {
+  if (!windows.main.win) return
+  log('openFiles')
+  const opts = process.platform === 'darwin'
+    ? {
+      title: 'Select a file or folder to add.',
+      properties: [ 'openFile', 'openDirectory' ]
+    }
+    : {
+      title: 'Select a file to add.',
+      properties: [ 'openFile' ]
+    }
+  setTitle(opts.title)
+  electron.dialog.showOpenDialog(windows.main.win, opts, function (selectedPaths) {
+    resetTitle()
+    if (!Array.isArray(selectedPaths)) return
+    windows.main.dispatch('onOpen', selectedPaths)
+  })
+}
+
+/*
+ * Show open dialog to open a .torrent file.
+ */
+function openTorrentFile () {
+  if (!windows.main.win) return
+  log('openTorrentFile')
+  const opts = {
+    title: 'Select a .torrent file.',
+    filters: [{ name: 'Torrent Files', extensions: ['torrent'] }],
+    properties: [ 'openFile', 'multiSelections' ]
+  }
+  setTitle(opts.title)
+  electron.dialog.showOpenDialog(windows.main.win, opts, function (selectedPaths) {
+    resetTitle()
+    if (!Array.isArray(selectedPaths)) return
+    selectedPaths.forEach(function (selectedPath) {
+      windows.main.dispatch('addTorrent', selectedPath)
+    })
+  })
+}
+
+/*
+ * Show modal dialog to open a torrent URL (magnet uri, http torrent link, etc.)
+ */
+function openTorrentAddress () {
+  log('openTorrentAddress')
+  windows.main.dispatch('openTorrentAddress')
+}
+
+/**
+ * Dialogs on do not show a title on Mac, so the window title is used instead.
+ */
+function setTitle (title) {
+  if (process.platform === 'darwin') {
+    windows.main.dispatch('setTitle', title)
+  }
+}
+
+function resetTitle () {
+  windows.main.dispatch('resetTitle')
+}
+
+/**
+ * Pops up an Open File dialog with the given options.
+ * After the user selects files / folders, shows the Create Torrent page.
+ */
+function showOpenSeed (opts) {
+  setTitle(opts.title)
+  electron.dialog.showOpenDialog(windows.main.win, opts, function (selectedPaths) {
+    resetTitle()
+    if (!Array.isArray(selectedPaths)) return
+    windows.main.dispatch('showCreateTorrent', selectedPaths)
+  })
+}

src/main/dock.js

@@ -0,0 +1,59 @@
+module.exports = {
+  downloadFinished,
+  init,
+  setBadge
+}
+
+const {app, Menu} = require('electron')
+
+const dialog = require('./dialog')
+const log = require('./log')
+
+/**
+ * Add a right-click menu to the dock icon. (Mac)
+ */
+function init () {
+  if (!app.dock) return
+  const menu = Menu.buildFromTemplate(getMenuTemplate())
+  app.dock.setMenu(menu)
+}
+
+/**
+ * Bounce the Downloads stack if `path` is inside the Downloads folder. (Mac)
+ */
+function downloadFinished (path) {
+  if (!app.dock) return
+  log(`downloadFinished: ${path}`)
+  app.dock.downloadFinished(path)
+}
+
+/**
+ * Display a counter badge for the app. (Mac, Linux)
+ */
+function setBadge (count) {
+  if (process.platform === 'darwin' ||
+      process.platform === 'linux' && app.isUnityRunning()) {
+    log(`setBadge: ${count}`)
+    app.setBadgeCount(Number(count))
+  }
+}
+
+function getMenuTemplate () {
+  return [
+    {
+      label: 'Create New Torrent...',
+      accelerator: 'CmdOrCtrl+N',
+      click: () => dialog.openSeedDirectory()
+    },
+    {
+      label: 'Open Torrent File...',
+      accelerator: 'CmdOrCtrl+O',
+      click: () => dialog.openTorrentFile()
+    },
+    {
+      label: 'Open Torrent Address...',
+      accelerator: 'CmdOrCtrl+U',
+      click: () => dialog.openTorrentAddress()
+    }
+  ]
+}

src/main/external-player.js

@@ -0,0 +1,77 @@
+module.exports = {
+  spawn,
+  kill,
+  checkInstall
+}
+
+const cp = require('child_process')
+const path = require('path')
+const vlcCommand = require('vlc-command')
+
+const log = require('./log')
+const windows = require('./windows')
+
+// holds a ChildProcess while we're playing a video in an external player, null otherwise
+let proc = null
+
+function checkInstall (playerPath, cb) {
+  // check for VLC if external player has not been specified by the user
+  // otherwise assume the player is installed
+  if (playerPath == null) return vlcCommand((err) => cb(!err))
+  process.nextTick(() => cb(true))
+}
+
+function spawn (playerPath, url, title) {
+  if (playerPath != null) return spawnExternal(playerPath, [url])
+
+  // Try to find and use VLC if external player is not specified
+  vlcCommand(function (err, vlcPath) {
+    if (err) return windows.main.dispatch('externalPlayerNotFound')
+    const args = [
+      '--play-and-exit',
+      '--video-on-top',
+      '--quiet',
+      `--meta-title=${JSON.stringify(title)}`,
+      url
+    ]
+    spawnExternal(vlcPath, args)
+  })
+}
+
+function kill () {
+  if (!proc) return
+  log('Killing external player, pid ' + proc.pid)
+  proc.kill('SIGKILL') // kill -9
+  proc = null
+}
+
+function spawnExternal (playerPath, args) {
+  log('Running external media player:', playerPath + ' ' + args.join(' '))
+
+  if (process.platform === 'darwin' && path.extname(playerPath) === '.app') {
+    // Mac: Use executable in packaged .app bundle
+    playerPath += '/Contents/MacOS/' + path.basename(playerPath, '.app')
+  }
+
+  proc = cp.spawn(playerPath, args, {stdio: 'ignore'})
+
+  // If it works, close the modal after a second
+  const closeModalTimeout = setTimeout(() =>
+    windows.main.dispatch('exitModal'), 1000)
+
+  proc.on('close', function (code) {
+    clearTimeout(closeModalTimeout)
+    if (!proc) return // Killed
+    log('External player exited with code ', code)
+    if (code === 0) {
+      windows.main.dispatch('backToList')
+    } else {
+      windows.main.dispatch('externalPlayerNotFound')
+    }
+    proc = null
+  })
+
+  proc.on('error', function (e) {
+    log('External player error', e)
+  })
+}

src/main/handlers.js

@@ -3,7 +3,8 @@ module.exports = {
   uninstall
 }
 
-var path = require('path')
+const config = require('../config')
+const path = require('path')
 
 function install () {
   if (process.platform === 'darwin') {
@@ -30,27 +31,52 @@ function uninstall () {
 }
 
 function installDarwin () {
-  var electron = require('electron')
-  var app = electron.app
+  const electron = require('electron')
+  const app = electron.app
 
-  // On OS X, only protocols that are listed in Info.plist can be set as the default
-  // handler at runtime.
+  // On Mac, only protocols that are listed in `Info.plist` can be set as the
+  // default handler at runtime.
   app.setAsDefaultProtocolClient('magnet')
+  app.setAsDefaultProtocolClient('stream-magnet')
 
-  // File handlers are registered in the Info.plist.
+  // File handlers are defined in `Info.plist`.
 }
 
 function uninstallDarwin () {}
 
+const EXEC_COMMAND = [ process.execPath ]
+
+if (!config.IS_PRODUCTION) {
+  EXEC_COMMAND.push(config.ROOT_PATH)
+}
+
 function installWin32 () {
-  var Registry = require('winreg')
+  const Registry = require('winreg')
 
-  var log = require('./log')
+  const log = require('./log')
 
-  var iconPath = path.join(process.resourcesPath, 'app.asar.unpacked', 'static', 'WebTorrentFile.ico')
-
-  registerProtocolHandlerWin32('magnet', 'URL:BitTorrent Magnet URL', iconPath, process.execPath)
-  registerFileHandlerWin32('.torrent', 'io.webtorrent.torrent', 'BitTorrent Document', iconPath, process.execPath)
+  const iconPath = path.join(
+    process.resourcesPath, 'app.asar.unpacked', 'static', 'WebTorrentFile.ico'
+  )
+  registerProtocolHandlerWin32(
+    'magnet',
+    'URL:BitTorrent Magnet URL',
+    iconPath,
+    EXEC_COMMAND
+  )
+  registerProtocolHandlerWin32(
+    'stream-magnet',
+    'URL:BitTorrent Stream-Magnet URL',
+    iconPath,
+    EXEC_COMMAND
+  )
+  registerFileHandlerWin32(
+    '.torrent',
+    'io.webtorrent.torrent',
+    'BitTorrent Document',
+    iconPath,
+    EXEC_COMMAND
+  )
 
   /**
    * To add a protocol handler, the following keys must be added to the Windows registry:
@@ -74,7 +100,7 @@ function installWin32 () {
    */
 
   function registerProtocolHandlerWin32 (protocol, name, icon, command) {
-    var protocolKey = new Registry({
+    const protocolKey = new Registry({
       hive: Registry.HKCU, // HKEY_CURRENT_USER
       key: '\\Software\\Classes\\' + protocol
     })
@@ -94,7 +120,7 @@ function installWin32 () {
     function setIcon (err) {
       if (err) log.error(err.message)
 
-      var iconKey = new Registry({
+      const iconKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + protocol + '\\DefaultIcon'
       })
@@ -104,11 +130,11 @@ function installWin32 () {
     function setCommand (err) {
       if (err) log.error(err.message)
 
-      var commandKey = new Registry({
+      const commandKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + protocol + '\\shell\\open\\command'
       })
-      commandKey.set('', Registry.REG_SZ, '"' + command + '" "%1"', done)
+      commandKey.set('', Registry.REG_SZ, `${commandToArgs(command)} "%1"`, done)
     }
 
     function done (err) {
@@ -135,7 +161,7 @@ function installWin32 () {
     setExt()
 
     function setExt () {
-      var extKey = new Registry({
+      const extKey = new Registry({
         hive: Registry.HKCU, // HKEY_CURRENT_USER
         key: '\\Software\\Classes\\' + ext
       })
@@ -145,7 +171,7 @@ function installWin32 () {
     function setId (err) {
       if (err) log.error(err.message)
 
-      var idKey = new Registry({
+      const idKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + id
       })
@@ -155,7 +181,7 @@ function installWin32 () {
     function setIcon (err) {
       if (err) log.error(err.message)
 
-      var iconKey = new Registry({
+      const iconKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + id + '\\DefaultIcon'
       })
@@ -165,11 +191,11 @@ function installWin32 () {
     function setCommand (err) {
       if (err) log.error(err.message)
 
-      var commandKey = new Registry({
+      const commandKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + id + '\\shell\\open\\command'
       })
-      commandKey.set('', Registry.REG_SZ, '"' + command + '" "%1"', done)
+      commandKey.set('', Registry.REG_SZ, `${commandToArgs(command)} "%1"`, done)
     }
 
     function done (err) {
@@ -179,32 +205,33 @@ function installWin32 () {
 }
 
 function uninstallWin32 () {
-  var Registry = require('winreg')
+  const Registry = require('winreg')
 
-  unregisterProtocolHandlerWin32('magnet', process.execPath)
-  unregisterFileHandlerWin32('.torrent', 'io.webtorrent.torrent', process.execPath)
+  unregisterProtocolHandlerWin32('magnet', EXEC_COMMAND)
+  unregisterProtocolHandlerWin32('stream-magnet', EXEC_COMMAND)
+  unregisterFileHandlerWin32('.torrent', 'io.webtorrent.torrent', EXEC_COMMAND)
 
   function unregisterProtocolHandlerWin32 (protocol, command) {
     getCommand()
 
     function getCommand () {
-      var commandKey = new Registry({
+      const commandKey = new Registry({
         hive: Registry.HKCU, // HKEY_CURRENT_USER
         key: '\\Software\\Classes\\' + protocol + '\\shell\\open\\command'
       })
       commandKey.get('', function (err, item) {
-        if (!err && item.value.indexOf(command) >= 0) {
-          eraseProtocol()
+        if (!err && item.value.indexOf(commandToArgs(command)) >= 0) {
+          destroyProtocol()
         }
       })
     }
 
-    function eraseProtocol () {
-      var protocolKey = new Registry({
+    function destroyProtocol () {
+      const protocolKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + protocol
       })
-      protocolKey.erase(function () {})
+      protocolKey.destroy(function () {})
     }
   }
 
@@ -212,119 +239,131 @@ function uninstallWin32 () {
     eraseId()
 
     function eraseId () {
-      var idKey = new Registry({
+      const idKey = new Registry({
         hive: Registry.HKCU, // HKEY_CURRENT_USER
         key: '\\Software\\Classes\\' + id
       })
-      idKey.erase(getExt)
+      idKey.destroy(getExt)
     }
 
     function getExt () {
-      var extKey = new Registry({
+      const extKey = new Registry({
         hive: Registry.HKCU,
         key: '\\Software\\Classes\\' + ext
       })
       extKey.get('', function (err, item) {
         if (!err && item.value === id) {
-          eraseExt()
+          destroyExt()
         }
       })
     }
 
-    function eraseExt () {
-      var extKey = new Registry({
+    function destroyExt () {
+      const extKey = new Registry({
         hive: Registry.HKCU, // HKEY_CURRENT_USER
         key: '\\Software\\Classes\\' + ext
       })
-      extKey.erase(function () {})
+      extKey.destroy(function () {})
     }
   }
 }
 
-function installLinux () {
-  var fs = require('fs')
-  var mkdirp = require('mkdirp')
-  var os = require('os')
-  var path = require('path')
+function commandToArgs (command) {
+  return command.map((arg) => `"${arg}"`).join(' ')
+}
 
-  var config = require('../config')
-  var log = require('./log')
+function installLinux () {
+  const fs = require('fs')
+  const os = require('os')
+  const path = require('path')
+
+  const config = require('../config')
+  const log = require('./log')
+
+  // Do not install in user dir if running on system
+  if (/^\/opt/.test(process.execPath)) return
 
   installDesktopFile()
   installIconFile()
 
   function installDesktopFile () {
-    var templatePath = path.join(config.STATIC_PATH, 'linux', 'webtorrent-desktop.desktop')
+    const templatePath = path.join(
+      config.STATIC_PATH, 'linux', 'webtorrent-desktop.desktop'
+    )
     fs.readFile(templatePath, 'utf8', writeDesktopFile)
   }
 
   function writeDesktopFile (err, desktopFile) {
     if (err) return log.error(err.message)
 
-    var appPath = config.IS_PRODUCTION ? path.dirname(process.execPath) : config.ROOT_PATH
-    var execPath = process.execPath + (config.IS_PRODUCTION ? '' : ' \.')
-    var tryExecPath = process.execPath
+    const appPath = config.IS_PRODUCTION
+      ? path.dirname(process.execPath)
+      : config.ROOT_PATH
 
     desktopFile = desktopFile.replace(/\$APP_NAME/g, config.APP_NAME)
     desktopFile = desktopFile.replace(/\$APP_PATH/g, appPath)
-    desktopFile = desktopFile.replace(/\$EXEC_PATH/g, execPath)
-    desktopFile = desktopFile.replace(/\$TRY_EXEC_PATH/g, tryExecPath)
+    desktopFile = desktopFile.replace(/\$EXEC_PATH/g, EXEC_COMMAND.join(' '))
+    desktopFile = desktopFile.replace(/\$TRY_EXEC_PATH/g, process.execPath)
 
-    var desktopFilePath = path.join(
+    const desktopFilePath = path.join(
       os.homedir(),
       '.local',
       'share',
       'applications',
       'webtorrent-desktop.desktop'
     )
-    mkdirp(path.dirname(desktopFilePath))
+    fs.mkdirp(path.dirname(desktopFilePath))
     fs.writeFile(desktopFilePath, desktopFile, function (err) {
       if (err) return log.error(err.message)
     })
   }
 
   function installIconFile () {
-    var iconStaticPath = path.join(config.STATIC_PATH, 'WebTorrent.png')
+    const iconStaticPath = path.join(config.STATIC_PATH, 'WebTorrent.png')
     fs.readFile(iconStaticPath, writeIconFile)
   }
 
   function writeIconFile (err, iconFile) {
     if (err) return log.error(err.message)
 
-    var iconFilePath = path.join(
+    const mkdirp = require('mkdirp')
+
+    const iconFilePath = path.join(
       os.homedir(),
       '.local',
       'share',
       'icons',
       'webtorrent-desktop.png'
     )
-    mkdirp(path.dirname(iconFilePath))
-    fs.writeFile(iconFilePath, iconFile, function (err) {
+    mkdirp(path.dirname(iconFilePath), (err) => {
       if (err) return log.error(err.message)
+      fs.writeFile(iconFilePath, iconFile, (err) => {
+        if (err) log.error(err.message)
+      })
     })
   }
 }
 
 function uninstallLinux () {
-  var os = require('os')
-  var path = require('path')
-  var rimraf = require('rimraf')
+  const os = require('os')
+  const path = require('path')
+  const rimraf = require('rimraf')
 
-  var desktopFilePath = path.join(
+  const desktopFilePath = path.join(
     os.homedir(),
     '.local',
     'share',
     'applications',
     'webtorrent-desktop.desktop'
   )
-  rimraf.sync(desktopFilePath)
+  rimraf(desktopFilePath)
 
-  var iconFilePath = path.join(
+  const iconFilePath = path.join(
     os.homedir(),
     '.local',
     'share',
     'icons',
     'webtorrent-desktop.png'
   )
-  rimraf.sync(iconFilePath)
+  rimraf(iconFilePath)
 }

src/main/index.js

@@ -0,0 +1,216 @@
+console.time('init')
+
+const electron = require('electron')
+const app = electron.app
+
+const parallel = require('run-parallel')
+
+const config = require('../config')
+const crashReporter = require('../crash-reporter')
+const ipc = require('./ipc')
+const log = require('./log')
+const menu = require('./menu')
+const State = require('../renderer/lib/state')
+const windows = require('./windows')
+
+let shouldQuit = false
+let argv = sliceArgv(process.argv)
+
+// Start the app without showing the main window when auto launching on login
+// (On Windows and Linux, we get a flag. On MacOS, we get special API.)
+const hidden = argv.includes('--hidden') ||
+  (process.platform === 'darwin' && app.getLoginItemSettings().wasOpenedAsHidden)
+
+if (config.IS_PRODUCTION) {
+  // When Electron is running in production mode (packaged app), then run React
+  // in production mode too.
+  process.env.NODE_ENV = 'production'
+}
+
+if (process.platform === 'win32') {
+  const squirrelWin32 = require('./squirrel-win32')
+  shouldQuit = squirrelWin32.handleEvent(argv[0])
+  argv = argv.filter((arg) => !arg.includes('--squirrel'))
+}
+
+if (!shouldQuit && !config.IS_PORTABLE) {
+  // Prevent multiple instances of app from running at same time. New instances
+  // signal this instance and quit. Note: This feature creates a lock file in
+  // %APPDATA%\Roaming\WebTorrent so we do not do it for the Portable App since
+  // we want to be "silent" as well as "portable".
+  shouldQuit = app.makeSingleInstance(onAppOpen)
+  if (shouldQuit) {
+    app.quit()
+  }
+}
+
+if (!shouldQuit) {
+  init()
+}
+
+function init () {
+  if (config.IS_PORTABLE) {
+    const path = require('path')
+    // Put all user data into the "Portable Settings" folder
+    app.setPath('userData', config.CONFIG_PATH)
+    // Put Electron crash files, etc. into the "Portable Settings\Temp" folder
+    app.setPath('temp', path.join(config.CONFIG_PATH, 'Temp'))
+  }
+
+  const ipcMain = electron.ipcMain
+
+  let isReady = false // app ready, windows can be created
+  app.ipcReady = false // main window has finished loading and IPC is ready
+  app.isQuitting = false
+
+  parallel({
+    appReady: (cb) => app.on('ready', () => cb(null)),
+    state: (cb) => State.load(cb)
+  }, onReady)
+
+  function onReady (err, results) {
+    if (err) throw err
+
+    isReady = true
+
+    windows.main.init(results.state, {hidden: hidden})
+    windows.webtorrent.init()
+    menu.init()
+
+    // To keep app startup fast, some code is delayed.
+    setTimeout(delayedInit, config.DELAYED_INIT)
+
+    // Report uncaught exceptions
+    process.on('uncaughtException', (err) => {
+      console.error(err)
+      const error = {message: err.message, stack: err.stack}
+      windows.main.dispatch('uncaughtError', 'main', error)
+    })
+  }
+
+  app.on('open-file', onOpen)
+  app.on('open-url', onOpen)
+
+  ipc.init()
+
+  app.once('will-finish-launching', function () {
+    crashReporter.init()
+  })
+
+  app.once('ipcReady', function () {
+    log('Command line args:', argv)
+    processArgv(argv)
+    console.timeEnd('init')
+  })
+
+  app.on('before-quit', function (e) {
+    if (app.isQuitting) return
+
+    app.isQuitting = true
+    e.preventDefault()
+    windows.main.dispatch('stateSaveImmediate') // try to save state on exit
+    ipcMain.once('stateSaved', () => app.quit())
+    setTimeout(() => {
+      console.error('Saving state took too long. Quitting.')
+      app.quit()
+    }, 4000) // quit after 4 secs, at most
+  })
+
+  app.on('activate', function () {
+    if (isReady) windows.main.show()
+  })
+}
+
+function delayedInit () {
+  if (app.isQuitting) return
+
+  const announcement = require('./announcement')
+  const dock = require('./dock')
+  const updater = require('./updater')
+
+  announcement.init()
+  dock.init()
+  updater.init()
+
+  if (process.platform === 'win32') {
+    const userTasks = require('./user-tasks')
+    userTasks.init()
+  }
+
+  if (process.platform !== 'darwin') {
+    const tray = require('./tray')
+    tray.init()
+  }
+}
+
+function onOpen (e, torrentId) {
+  e.preventDefault()
+
+  if (app.ipcReady) {
+    // Magnet links opened from Chrome won't focus the app without a setTimeout.
+    // The confirmation dialog Chrome shows causes Chrome to steal back the focus.
+    // Electron issue: https://github.com/atom/electron/issues/4338
+    setTimeout(() => windows.main.show(), 100)
+
+    processArgv([ torrentId ])
+  } else {
+    argv.push(torrentId)
+  }
+}
+
+function onAppOpen (newArgv) {
+  newArgv = sliceArgv(newArgv)
+
+  if (app.ipcReady) {
+    log('Second app instance opened, but was prevented:', newArgv)
+    windows.main.show()
+
+    processArgv(newArgv)
+  } else {
+    argv.push(...newArgv)
+  }
+}
+
+// Remove leading args.
+// Production: 1 arg, eg: /Applications/WebTorrent.app/Contents/MacOS/WebTorrent
+// Development: 2 args, eg: electron .
+// Test: 4 args, eg: electron -r .../mocks.js .
+function sliceArgv (argv) {
+  return argv.slice(config.IS_PRODUCTION ? 1
+    : config.IS_TEST ? 4
+    : 2)
+}
+
+function processArgv (argv) {
+  let torrentIds = []
+  argv.forEach(function (arg) {
+    if (arg === '-n' || arg === '-o' || arg === '-u') {
+      // Critical path: Only load the 'dialog' package if it is needed
+      const dialog = require('./dialog')
+      if (arg === '-n') {
+        dialog.openSeedDirectory()
+      } else if (arg === '-o') {
+        dialog.openTorrentFile()
+      } else if (arg === '-u') {
+        dialog.openTorrentAddress()
+      }
+    } else if (arg === '--hidden') {
+      // Ignore hidden argument, already being handled
+    } else if (arg.startsWith('-psn')) {
+      // Ignore Mac launchd "process serial number" argument
+      // Issue: https://github.com/feross/webtorrent-desktop/issues/214
+    } else if (arg.startsWith('--')) {
+      // Ignore Spectron flags
+    } else if (arg === 'data:,') {
+      // Ignore weird Spectron argument
+    } else if (arg !== '.') {
+      // Ignore '.' argument, which gets misinterpreted as a torrent id, when a
+      // development copy of WebTorrent is started while a production version is
+      // running.
+      torrentIds.push(arg)
+    }
+  })
+  if (torrentIds.length > 0) {
+    windows.main.dispatch('onOpen', torrentIds)
+  }
+}

src/main/ipc.js

@@ -0,0 +1,218 @@
+module.exports = {
+  init
+}
+
+const electron = require('electron')
+
+const app = electron.app
+
+const log = require('./log')
+const menu = require('./menu')
+const windows = require('./windows')
+
+// Messages from the main process, to be sent once the WebTorrent process starts
+const messageQueueMainToWebTorrent = []
+
+function init () {
+  const ipc = electron.ipcMain
+
+  ipc.once('ipcReady', function (e) {
+    app.ipcReady = true
+    app.emit('ipcReady')
+  })
+
+  ipc.once('ipcReadyWebTorrent', function (e) {
+    app.ipcReadyWebTorrent = true
+    log('sending %d queued messages from the main win to the webtorrent window',
+      messageQueueMainToWebTorrent.length)
+    messageQueueMainToWebTorrent.forEach(function (message) {
+      windows.webtorrent.send(message.name, ...message.args)
+      log('webtorrent: sent queued %s', message.name)
+    })
+  })
+
+  /**
+   * Dialog
+   */
+
+  ipc.on('openTorrentFile', () => {
+    const dialog = require('./dialog')
+    dialog.openTorrentFile()
+  })
+  ipc.on('openFiles', () => {
+    const dialog = require('./dialog')
+    dialog.openFiles()
+  })
+
+  /**
+   * Dock
+   */
+
+  ipc.on('setBadge', (e, ...args) => {
+    const dock = require('./dock')
+    dock.setBadge(...args)
+  })
+  ipc.on('downloadFinished', (e, ...args) => {
+    const dock = require('./dock')
+    dock.downloadFinished(...args)
+  })
+
+  /**
+   * Events
+   */
+
+  ipc.on('onPlayerOpen', function () {
+    const powerSaveBlocker = require('./power-save-blocker')
+    const shortcuts = require('./shortcuts')
+    const thumbar = require('./thumbar')
+
+    menu.togglePlaybackControls(true)
+    powerSaveBlocker.enable()
+    shortcuts.enable()
+    thumbar.enable()
+  })
+
+  ipc.on('onPlayerUpdate', function (e, ...args) {
+    const thumbar = require('./thumbar')
+
+    menu.onPlayerUpdate(...args)
+    thumbar.onPlayerUpdate(...args)
+  })
+
+  ipc.on('onPlayerClose', function () {
+    const powerSaveBlocker = require('./power-save-blocker')
+    const shortcuts = require('./shortcuts')
+    const thumbar = require('./thumbar')
+
+    menu.togglePlaybackControls(false)
+    powerSaveBlocker.disable()
+    shortcuts.disable()
+    thumbar.disable()
+  })
+
+  ipc.on('onPlayerPlay', function () {
+    const powerSaveBlocker = require('./power-save-blocker')
+    const thumbar = require('./thumbar')
+
+    powerSaveBlocker.enable()
+    thumbar.onPlayerPlay()
+  })
+
+  ipc.on('onPlayerPause', function () {
+    const powerSaveBlocker = require('./power-save-blocker')
+    const thumbar = require('./thumbar')
+
+    powerSaveBlocker.disable()
+    thumbar.onPlayerPause()
+  })
+
+  /**
+   * Shell
+   */
+
+  ipc.on('openItem', (e, ...args) => {
+    const shell = require('./shell')
+    shell.openItem(...args)
+  })
+  ipc.on('showItemInFolder', (e, ...args) => {
+    const shell = require('./shell')
+    shell.showItemInFolder(...args)
+  })
+  ipc.on('moveItemToTrash', (e, ...args) => {
+    const shell = require('./shell')
+    shell.moveItemToTrash(...args)
+  })
+
+  /**
+   * File handlers
+   */
+
+  ipc.on('setDefaultFileHandler', (e, flag) => {
+    const handlers = require('./handlers')
+
+    if (flag) handlers.install()
+    else handlers.uninstall()
+  })
+
+  /**
+   * Auto start on login
+   */
+
+  ipc.on('setStartup', (e, flag) => {
+    const startup = require('./startup')
+
+    if (flag) startup.install()
+    else startup.uninstall()
+  })
+
+  /**
+   * Windows: Main
+   */
+
+  const main = windows.main
+
+  ipc.on('setAspectRatio', (e, ...args) => main.setAspectRatio(...args))
+  ipc.on('setBounds', (e, ...args) => main.setBounds(...args))
+  ipc.on('setProgress', (e, ...args) => main.setProgress(...args))
+  ipc.on('setTitle', (e, ...args) => main.setTitle(...args))
+  ipc.on('show', () => main.show())
+  ipc.on('toggleFullScreen', (e, ...args) => main.toggleFullScreen(...args))
+  ipc.on('setAllowNav', (e, ...args) => menu.setAllowNav(...args))
+
+  /**
+   * External Media Player
+   */
+
+  ipc.on('checkForExternalPlayer', function (e, path) {
+    const externalPlayer = require('./external-player')
+
+    externalPlayer.checkInstall(path, function (isInstalled) {
+      windows.main.send('checkForExternalPlayer', isInstalled)
+    })
+  })
+
+  ipc.on('openExternalPlayer', (e, ...args) => {
+    const externalPlayer = require('./external-player')
+    const thumbar = require('./thumbar')
+
+    menu.togglePlaybackControls(false)
+    thumbar.disable()
+    externalPlayer.spawn(...args)
+  })
+
+  ipc.on('quitExternalPlayer', () => {
+    const externalPlayer = require('./external-player')
+    externalPlayer.kill()
+  })
+
+  /**
+   * Message passing
+   */
+
+  const oldEmit = ipc.emit
+  ipc.emit = function (name, e, ...args) {
+    // Relay messages between the main window and the WebTorrent hidden window
+    if (name.startsWith('wt-') && !app.isQuitting) {
+      if (e.sender.browserWindowOptions.title === 'webtorrent-hidden-window') {
+        // Send message to main window
+        windows.main.send(name, ...args)
+        log('webtorrent: got %s', name)
+      } else if (app.ipcReadyWebTorrent) {
+        // Send message to webtorrent window
+        windows.webtorrent.send(name, ...args)
+        log('webtorrent: sent %s', name)
+      } else {
+        // Queue message for webtorrent window, it hasn't finished loading yet
+        messageQueueMainToWebTorrent.push({
+          name: name,
+          args: args
+        })
+        log('webtorrent: queueing %s', name)
+      }
+      return
+    }
+
+    // Emit all other events normally
+    oldEmit.call(ipc, name, e, ...args)
+  }
+}

src/main/log.js

@@ -8,17 +8,16 @@ module.exports.error = error
  * where they can be viewed in Developer Tools.
  */
 
-var electron = require('electron')
+const electron = require('electron')
+const windows = require('./windows')
 
-var windows = require('./windows')
-
-var app = electron.app
+const app = electron.app
 
 function log (...args) {
   if (app.ipcReady) {
     windows.main.send('log', ...args)
   } else {
-    app.on('ipcReady', () => windows.main.send('log', ...args))
+    app.once('ipcReady', () => windows.main.send('log', ...args))
   }
 }
 
@@ -26,6 +25,6 @@ function error (...args) {
   if (app.ipcReady) {
     windows.main.send('error', ...args)
   } else {
-    app.on('ipcReady', () => windows.main.send('error', ...args))
+    app.once('ipcReady', () => windows.main.send('error', ...args))
   }
 }

src/main/menu.js

@@ -0,0 +1,432 @@
+module.exports = {
+  init,
+  togglePlaybackControls,
+  setWindowFocus,
+  setAllowNav,
+  onPlayerUpdate,
+  onToggleAlwaysOnTop,
+  onToggleFullScreen
+}
+
+const electron = require('electron')
+
+const app = electron.app
+
+const config = require('../config')
+const windows = require('./windows')
+
+let menu = null
+
+function init () {
+  menu = electron.Menu.buildFromTemplate(getMenuTemplate())
+  electron.Menu.setApplicationMenu(menu)
+}
+
+function togglePlaybackControls (flag) {
+  getMenuItem('Play/Pause').enabled = flag
+  getMenuItem('Skip Next').enabled = flag
+  getMenuItem('Skip Previous').enabled = flag
+  getMenuItem('Increase Volume').enabled = flag
+  getMenuItem('Decrease Volume').enabled = flag
+  getMenuItem('Step Forward').enabled = flag
+  getMenuItem('Step Backward').enabled = flag
+  getMenuItem('Increase Speed').enabled = flag
+  getMenuItem('Decrease Speed').enabled = flag
+  getMenuItem('Add Subtitles File...').enabled = flag
+
+  if (flag === false) {
+    getMenuItem('Skip Next').enabled = false
+    getMenuItem('Skip Previous').enabled = false
+  }
+}
+
+function onPlayerUpdate (hasNext, hasPrevious) {
+  getMenuItem('Skip Next').enabled = hasNext
+  getMenuItem('Skip Previous').enabled = hasPrevious
+}
+
+function setWindowFocus (flag) {
+  getMenuItem('Full Screen').enabled = flag
+  getMenuItem('Float on Top').enabled = flag
+}
+
+// Disallow opening more screens on top of the current one.
+function setAllowNav (flag) {
+  getMenuItem('Preferences').enabled = flag
+  if (process.platform === 'darwin') {
+    getMenuItem('Create New Torrent...').enabled = flag
+  } else {
+    getMenuItem('Create New Torrent from Folder...').enabled = flag
+    getMenuItem('Create New Torrent from File...').enabled = flag
+  }
+}
+
+function onToggleAlwaysOnTop (flag) {
+  getMenuItem('Float on Top').checked = flag
+}
+
+function onToggleFullScreen (flag) {
+  getMenuItem('Full Screen').checked = flag
+}
+
+function getMenuItem (label) {
+  for (let i = 0; i < menu.items.length; i++) {
+    const menuItem = menu.items[i].submenu.items.find(function (item) {
+      return item.label === label
+    })
+    if (menuItem) return menuItem
+  }
+}
+
+function getMenuTemplate () {
+  const template = [
+    {
+      label: 'File',
+      submenu: [
+        {
+          label: process.platform === 'darwin'
+            ? 'Create New Torrent...'
+            : 'Create New Torrent from Folder...',
+          accelerator: 'CmdOrCtrl+N',
+          click: () => {
+            const dialog = require('./dialog')
+            dialog.openSeedDirectory()
+          }
+        },
+        {
+          label: 'Open Torrent File...',
+          accelerator: 'CmdOrCtrl+O',
+          click: () => {
+            const dialog = require('./dialog')
+            dialog.openTorrentFile()
+          }
+        },
+        {
+          label: 'Open Torrent Address...',
+          accelerator: 'CmdOrCtrl+U',
+          click: () => {
+            const dialog = require('./dialog')
+            dialog.openTorrentAddress()
+          }
+        },
+        {
+          type: 'separator'
+        },
+        {
+          role: 'close'
+        }
+      ]
+    },
+    {
+      label: 'Edit',
+      submenu: [
+        {
+          role: 'undo'
+        },
+        {
+          role: 'redo'
+        },
+        {
+          type: 'separator'
+        },
+        {
+          role: 'cut'
+        },
+        {
+          role: 'copy'
+        },
+        {
+          label: 'Paste Torrent Address',
+          role: 'paste'
+        },
+        {
+          role: 'delete'
+        },
+        {
+          role: 'selectall'
+        }
+      ]
+    },
+    {
+      label: 'View',
+      submenu: [
+        {
+          label: 'Full Screen',
+          type: 'checkbox',
+          accelerator: process.platform === 'darwin'
+            ? 'Ctrl+Command+F'
+            : 'F11',
+          click: () => windows.main.toggleFullScreen()
+        },
+        {
+          label: 'Float on Top',
+          type: 'checkbox',
+          click: () => windows.main.toggleAlwaysOnTop()
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Go Back',
+          accelerator: 'Esc',
+          click: () => windows.main.dispatch('escapeBack')
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Developer',
+          submenu: [
+            {
+              label: 'Developer Tools',
+              accelerator: process.platform === 'darwin'
+                ? 'Alt+Command+I'
+                : 'Ctrl+Shift+I',
+              click: () => windows.main.toggleDevTools()
+            },
+            {
+              label: 'Show WebTorrent Process',
+              accelerator: process.platform === 'darwin'
+                ? 'Alt+Command+P'
+                : 'Ctrl+Shift+P',
+              click: () => windows.webtorrent.toggleDevTools()
+            }
+          ]
+        }
+      ]
+    },
+    {
+      label: 'Playback',
+      submenu: [
+        {
+          label: 'Play/Pause',
+          accelerator: 'Space',
+          click: () => windows.main.dispatch('playPause'),
+          enabled: false
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Skip Next',
+          accelerator: 'N',
+          click: () => windows.main.dispatch('nextTrack'),
+          enabled: false
+        },
+        {
+          label: 'Skip Previous',
+          accelerator: 'P',
+          click: () => windows.main.dispatch('previousTrack'),
+          enabled: false
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Increase Volume',
+          accelerator: 'CmdOrCtrl+Up',
+          click: () => windows.main.dispatch('changeVolume', 0.1),
+          enabled: false
+        },
+        {
+          label: 'Decrease Volume',
+          accelerator: 'CmdOrCtrl+Down',
+          click: () => windows.main.dispatch('changeVolume', -0.1),
+          enabled: false
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Step Forward',
+          accelerator: process.platform === 'darwin'
+            ? 'CmdOrCtrl+Alt+Right'
+            : 'Alt+Right',
+          click: () => windows.main.dispatch('skip', 10),
+          enabled: false
+        },
+        {
+          label: 'Step Backward',
+          accelerator: process.platform === 'darwin'
+            ? 'CmdOrCtrl+Alt+Left'
+            : 'Alt+Left',
+          click: () => windows.main.dispatch('skip', -10),
+          enabled: false
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Increase Speed',
+          accelerator: 'CmdOrCtrl+=',
+          click: () => windows.main.dispatch('changePlaybackRate', 1),
+          enabled: false
+        },
+        {
+          label: 'Decrease Speed',
+          accelerator: 'CmdOrCtrl+-',
+          click: () => windows.main.dispatch('changePlaybackRate', -1),
+          enabled: false
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Add Subtitles File...',
+          click: () => windows.main.dispatch('openSubtitles'),
+          enabled: false
+        }
+      ]
+    },
+    {
+      label: 'Transfers',
+      submenu: [
+        {
+          label: 'Pause All',
+          click: () => windows.main.dispatch('pauseAllTorrents')
+        },
+        {
+          label: 'Resume All',
+          click: () => windows.main.dispatch('resumeAllTorrents')
+        }
+      ]
+    },
+    {
+      label: 'Help',
+      role: 'help',
+      submenu: [
+        {
+          label: 'Learn more about ' + config.APP_NAME,
+          click: () => {
+            const shell = require('./shell')
+            shell.openExternal(config.HOME_PAGE_URL)
+          }
+        },
+        {
+          label: 'Contribute on GitHub',
+          click: () => {
+            const shell = require('./shell')
+            shell.openExternal(config.GITHUB_URL)
+          }
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Report an Issue...',
+          click: () => {
+            const shell = require('./shell')
+            shell.openExternal(config.GITHUB_URL_ISSUES)
+          }
+        }
+      ]
+    }
+  ]
+
+  if (process.platform === 'darwin') {
+    // Add WebTorrent app menu (Mac)
+    template.unshift({
+      label: config.APP_NAME,
+      submenu: [
+        {
+          role: 'about'
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Preferences',
+          accelerator: 'Cmd+,',
+          click: () => windows.main.dispatch('preferences')
+        },
+        {
+          type: 'separator'
+        },
+        {
+          role: 'services',
+          submenu: []
+        },
+        {
+          type: 'separator'
+        },
+        {
+          role: 'hide'
+        },
+        {
+          role: 'hideothers'
+        },
+        {
+          role: 'unhide'
+        },
+        {
+          type: 'separator'
+        },
+        {
+          role: 'quit'
+        }
+      ]
+    })
+
+    // Add Window menu (Mac)
+    template.splice(6, 0, {
+      role: 'window',
+      submenu: [
+        {
+          role: 'minimize'
+        },
+        {
+          type: 'separator'
+        },
+        {
+          role: 'front'
+        }
+      ]
+    })
+  }
+
+  // On Windows and Linux, open dialogs do not support selecting both files and
+  // folders and files, so add an extra menu item so there is one for each type.
+  if (process.platform === 'linux' || process.platform === 'win32') {
+    // File menu (Windows, Linux)
+    template[0].submenu.unshift({
+      label: 'Create New Torrent from File...',
+      click: () => {
+        const dialog = require('./dialog')
+        dialog.openSeedFile()
+      }
+    })
+
+    // Edit menu (Windows, Linux)
+    template[1].submenu.push(
+      {
+        type: 'separator'
+      },
+      {
+        label: 'Preferences',
+        accelerator: 'CmdOrCtrl+,',
+        click: () => windows.main.dispatch('preferences')
+      })
+
+    // Help menu (Windows, Linux)
+    template[4].submenu.push(
+      {
+        type: 'separator'
+      },
+      {
+        label: 'About ' + config.APP_NAME,
+        click: () => windows.about.init()
+      }
+    )
+  }
+  // Add "File > Quit" menu item so Linux distros where the system tray icon is
+  // missing will have a way to quit the app.
+  if (process.platform === 'linux') {
+    // File menu (Linux)
+    template[0].submenu.push({
+      label: 'Quit',
+      click: () => app.quit()
+    })
+  }
+
+  return template
+}

src/main/power-save-blocker.js

@@ -0,0 +1,34 @@
+module.exports = {
+  enable,
+  disable
+}
+
+const electron = require('electron')
+const log = require('./log')
+
+let blockId = 0
+
+/**
+ * Block the system from entering low-power (sleep) mode or turning off the
+ * display.
+ */
+function enable () {
+  if (electron.powerSaveBlocker.isStarted(blockId)) {
+    // If a power saver block already exists, do nothing.
+    return
+  }
+  blockId = electron.powerSaveBlocker.start('prevent-display-sleep')
+  log(`powerSaveBlocker.enable: ${blockId}`)
+}
+
+/**
+ * Stop blocking the system from entering low-power mode.
+ */
+function disable () {
+  if (!electron.powerSaveBlocker.isStarted(blockId)) {
+    // If a power saver block does not exist, do nothing.
+    return
+  }
+  electron.powerSaveBlocker.stop(blockId)
+  log(`powerSaveBlocker.disable: ${blockId}`)
+}

src/main/shell.js

@@ -0,0 +1,41 @@
+module.exports = {
+  openExternal,
+  openItem,
+  showItemInFolder,
+  moveItemToTrash
+}
+
+const electron = require('electron')
+const log = require('./log')
+
+/**
+ * Open the given external protocol URL in the desktop’s default manner.
+ */
+function openExternal (url) {
+  log(`openExternal: ${url}`)
+  electron.shell.openExternal(url)
+}
+
+/**
+ * Open the given file in the desktop’s default manner.
+ */
+function openItem (path) {
+  log(`openItem: ${path}`)
+  electron.shell.openItem(path)
+}
+
+/**
+ * Show the given file in a file manager. If possible, select the file.
+ */
+function showItemInFolder (path) {
+  log(`showItemInFolder: ${path}`)
+  electron.shell.showItemInFolder(path)
+}
+
+/**
+ * Move the given file to trash and returns a boolean status for the operation.
+ */
+function moveItemToTrash (path) {
+  log(`moveItemToTrash: ${path}`)
+  electron.shell.moveItemToTrash(path)
+}

src/main/shortcuts.js

@@ -0,0 +1,30 @@
+module.exports = {
+  disable,
+  enable
+}
+
+const electron = require('electron')
+const windows = require('./windows')
+
+function enable () {
+  // Register play/pause media key, available on some keyboards.
+  electron.globalShortcut.register(
+    'MediaPlayPause',
+    () => windows.main.dispatch('playPause')
+  )
+  electron.globalShortcut.register(
+    'MediaNextTrack',
+    () => windows.main.dispatch('nextTrack')
+  )
+  electron.globalShortcut.register(
+    'MediaPreviousTrack',
+    () => windows.main.dispatch('previousTrack')
+  )
+}
+
+function disable () {
+  // Return the media key to the OS, so other apps can use it.
+  electron.globalShortcut.unregister('MediaPlayPause')
+  electron.globalShortcut.unregister('MediaNextTrack')
+  electron.globalShortcut.unregister('MediaPreviousTrack')
+}

src/main/squirrel-win32.js

@@ -2,19 +2,18 @@ module.exports = {
   handleEvent
 }
 
-var cp = require('child_process')
-var electron = require('electron')
-var fs = require('fs')
-var os = require('os')
-var path = require('path')
-var pathExists = require('path-exists')
+const cp = require('child_process')
+const electron = require('electron')
+const fs = require('fs')
+const os = require('os')
+const path = require('path')
 
-var app = electron.app
+const app = electron.app
 
-var handlers = require('./handlers')
+const handlers = require('./handlers')
 
-var exeName = path.basename(process.execPath)
-var updateDotExe = path.join(process.execPath, '..', '..', 'Update.exe')
+const EXE_NAME = path.basename(process.execPath)
+const UPDATE_EXE = path.join(process.execPath, '..', '..', 'Update.exe')
 
 function handleEvent (cmd) {
   if (cmd === '--squirrel-install') {
@@ -62,19 +61,21 @@ function handleEvent (cmd) {
   }
 
   if (cmd === '--squirrel-firstrun') {
-    // This is called on the app's first run. Do not quit, allow startup to continue.
+    // App is running for the first time. Do not quit, allow startup to continue.
     return false
   }
 
   return false
 }
 
-// Spawn a command and invoke the callback when it completes with an error and the output
-// from standard out.
+/**
+ * Spawn a command and invoke the callback when it completes with an error and
+ * the output from standard out.
+ */
 function spawn (command, args, cb) {
-  var stdout = ''
-
-  var child
+  let stdout = ''
+  let error = null
+  let child = null
   try {
     child = cp.spawn(command, args)
   } catch (err) {
@@ -89,10 +90,10 @@ function spawn (command, args, cb) {
     stdout += data
   })
 
-  var error = null
   child.on('error', function (processError) {
     error = processError
   })
+
   child.on('close', function (code, signal) {
     if (code !== 0 && !error) error = new Error('Command failed: #{signal || code}')
     if (error) error.stdout = stdout
@@ -100,25 +101,33 @@ function spawn (command, args, cb) {
   })
 }
 
-// Spawn Squirrel's Update.exe with the given arguments and invoke the callback when the
-// command completes.
+/**
+ * Spawn the Squirrel `Update.exe` command with the given arguments and invoke
+ * the callback when the command completes.
+ */
 function spawnUpdate (args, cb) {
-  spawn(updateDotExe, args, cb)
+  spawn(UPDATE_EXE, args, cb)
 }
 
-// Create desktop/start menu shortcuts using the Squirrel Update.exe command line API
+/**
+ * Create desktop and start menu shortcuts using the Squirrel `Update.exe`
+ * command.
+ */
 function createShortcuts (cb) {
-  spawnUpdate(['--createShortcut', exeName], cb)
+  spawnUpdate(['--createShortcut', EXE_NAME], cb)
 }
 
-// Update desktop/start menu shortcuts using the Squirrel Update.exe command line API
+/**
+ * Update desktop and start menu shortcuts using the Squirrel `Update.exe`
+ * command.
+ */
 function updateShortcuts (cb) {
-  var homeDir = os.homedir()
+  const homeDir = os.homedir()
   if (homeDir) {
-    var desktopShortcutPath = path.join(homeDir, 'Desktop', 'WebTorrent.lnk')
-    // Check if the desktop shortcut has been previously deleted and and keep it deleted
-    // if it was
-    pathExists(desktopShortcutPath).then(function (desktopShortcutExists) {
+    const desktopShortcutPath = path.join(homeDir, 'Desktop', 'WebTorrent.lnk')
+    // If the desktop shortcut was deleted by the user, then keep it deleted.
+    fs.access(desktopShortcutPath, function (err) {
+      const desktopShortcutExists = !err
       createShortcuts(function () {
         if (desktopShortcutExists) {
           cb()
@@ -133,7 +142,10 @@ function updateShortcuts (cb) {
   }
 }
 
-// Remove desktop/start menu shortcuts using the Squirrel Update.exe command line API
+/**
+ * Remove desktop and start menu shortcuts using the Squirrel `Update.exe`
+ * command.
+ */
 function removeShortcuts (cb) {
-  spawnUpdate(['--removeShortcut', exeName], cb)
+  spawnUpdate(['--removeShortcut', EXE_NAME], cb)
 }

src/main/startup.js

@@ -0,0 +1,36 @@
+module.exports = {
+  install,
+  uninstall
+}
+
+const config = require('../config')
+const AutoLaunch = require('auto-launch')
+const { app } = require('electron')
+
+// On Mac, work around a bug in auto-launch where it opens a Terminal window
+// See https://github.com/Teamwork/node-auto-launch/issues/28#issuecomment-222194437
+const appPath = process.platform === 'darwin'
+  ? app.getPath('exe').replace(/\.app\/Content.*/, '.app')
+  : undefined // Use the default
+
+const appLauncher = new AutoLaunch({
+  name: config.APP_NAME,
+  path: appPath,
+  isHidden: true
+})
+
+function install () {
+  return appLauncher
+    .isEnabled()
+    .then(enabled => {
+      if (!enabled) return appLauncher.enable()
+    })
+}
+
+function uninstall () {
+  return appLauncher
+    .isEnabled()
+    .then(enabled => {
+      if (enabled) return appLauncher.disable()
+    })
+}

src/main/thumbar.js

@@ -0,0 +1,91 @@
+module.exports = {
+  disable,
+  enable,
+  onPlayerPause,
+  onPlayerPlay,
+  onPlayerUpdate
+}
+
+/**
+ * On Windows, add a "thumbnail toolbar" with a play/pause button in the taskbar.
+ * This provides users a way to access play/pause functionality without restoring
+ * or activating the window.
+ */
+
+const path = require('path')
+const config = require('../config')
+
+const windows = require('./windows')
+
+const PREV_ICON = path.join(config.STATIC_PATH, 'PreviousTrackThumbnailBarButton.png')
+const PLAY_ICON = path.join(config.STATIC_PATH, 'PlayThumbnailBarButton.png')
+const PAUSE_ICON = path.join(config.STATIC_PATH, 'PauseThumbnailBarButton.png')
+const NEXT_ICON = path.join(config.STATIC_PATH, 'NextTrackThumbnailBarButton.png')
+
+// Array indices for each button
+const PREV = 0
+const PLAY_PAUSE = 1
+const NEXT = 2
+
+let buttons = []
+
+/**
+ * Show the Windows thumbnail toolbar buttons.
+ */
+function enable () {
+  buttons = [
+    {
+      tooltip: 'Previous Track',
+      icon: PREV_ICON,
+      click: () => windows.main.dispatch('previousTrack')
+    },
+    {
+      tooltip: 'Pause',
+      icon: PAUSE_ICON,
+      click: () => windows.main.dispatch('playPause')
+    },
+    {
+      tooltip: 'Next Track',
+      icon: NEXT_ICON,
+      click: () => windows.main.dispatch('nextTrack')
+    }
+  ]
+  update()
+}
+
+/**
+ * Hide the Windows thumbnail toolbar buttons.
+ */
+function disable () {
+  buttons = []
+  update()
+}
+
+function onPlayerPause () {
+  if (!isEnabled()) return
+  buttons[PLAY_PAUSE].tooltip = 'Play'
+  buttons[PLAY_PAUSE].icon = PLAY_ICON
+  update()
+}
+
+function onPlayerPlay () {
+  if (!isEnabled()) return
+  buttons[PLAY_PAUSE].tooltip = 'Pause'
+  buttons[PLAY_PAUSE].icon = PAUSE_ICON
+  update()
+}
+
+function onPlayerUpdate (state) {
+  if (!isEnabled()) return
+  buttons[PREV].flags = [ state.hasPrevious ? 'enabled' : 'disabled' ]
+  buttons[NEXT].flags = [ state.hasNext ? 'enabled' : 'disabled' ]
+  update()
+}
+
+function isEnabled () {
+  return buttons.length > 0
+}
+
+function update () {
+  windows.main.win.setThumbarButtons(buttons)
+}

src/main/tray.js

@@ -0,0 +1,109 @@
+module.exports = {
+  hasTray,
+  init,
+  setWindowFocus
+}
+
+const electron = require('electron')
+
+const app = electron.app
+
+const config = require('../config')
+const windows = require('./windows')
+
+let tray
+
+function init () {
+  if (process.platform === 'linux') {
+    initLinux()
+  }
+  if (process.platform === 'win32') {
+    initWin32()
+  }
+  // Mac apps generally do not have menu bar icons
+}
+
+/**
+ * Returns true if there a tray icon is active.
+ */
+function hasTray () {
+  return !!tray
+}
+
+function setWindowFocus (flag) {
+  if (!tray) return
+  updateTrayMenu()
+}
+
+function initLinux () {
+  checkLinuxTraySupport(function (supportsTray) {
+    if (supportsTray) createTray()
+  })
+}
+
+function initWin32 () {
+  createTray()
+}
+
+/**
+ * Check for libappindicator1 support before creating tray icon
+ */
+function checkLinuxTraySupport (cb) {
+  const cp = require('child_process')
+
+  // Check that we're on Ubuntu (or another debian system) and that we have
+  // libappindicator1. If WebTorrent was installed from the deb file, we should
+  // always have it. If it was installed from the zip file, we might not.
+  cp.exec('dpkg --get-selections libappindicator1', function (err, stdout) {
+    if (err) return cb(false)
+    // Unfortunately there's no cleaner way, as far as I can tell, to check
+    // whether a debian package is installed:
+    cb(stdout.endsWith('\tinstall\n'))
+  })
+}
+
+function createTray () {
+  tray = new electron.Tray(getIconPath())
+
+  // On Windows, left click opens the app, right click opens the context menu.
+  // On Linux, any click (left or right) opens the context menu.
+  tray.on('click', () => windows.main.show())
+
+  // Show the tray context menu, and keep the available commands up to date
+  updateTrayMenu()
+}
+
+function updateTrayMenu () {
+  const contextMenu = electron.Menu.buildFromTemplate(getMenuTemplate())
+  tray.setContextMenu(contextMenu)
+}
+
+function getMenuTemplate () {
+  return [
+    getToggleItem(),
+    {
+      label: 'Quit',
+      click: () => app.quit()
+    }
+  ]
+
+  function getToggleItem () {
+    if (windows.main.win.isVisible()) {
+      return {
+        label: 'Hide to tray',
+        click: () => windows.main.hide()
+      }
+    } else {
+      return {
+        label: 'Show WebTorrent',
+        click: () => windows.main.show()
+      }
+    }
+  }
+}
+
+function getIconPath () {
+  return process.platform === 'win32'
+    ? config.APP_ICON + '.ico'
+    : config.APP_ICON + '.png'
+}

src/main/updater.js

@@ -0,0 +1,77 @@
+module.exports = {
+  init
+}
+
+const electron = require('electron')
+const get = require('simple-get')
+
+const config = require('../config')
+const log = require('./log')
+const windows = require('./windows')
+
+const AUTO_UPDATE_URL = config.AUTO_UPDATE_URL +
+  '?version=' + config.APP_VERSION +
+  '&platform=' + process.platform +
+  '&sysarch=' + config.OS_SYSARCH
+
+function init () {
+  if (process.platform === 'linux') {
+    initLinux()
+  } else {
+    initDarwinWin32()
+  }
+}
+
+// The Electron auto-updater does not support Linux yet, so manually check for
+// updates and show the user a modal notification.
+function initLinux () {
+  get.concat(AUTO_UPDATE_URL, onResponse)
+}
+
+function onResponse (err, res, data) {
+  if (err) return log(`Update error: ${err.message}`)
+  if (res.statusCode === 200) {
+    // Update available
+    try {
+      data = JSON.parse(data)
+    } catch (err) {
+      return log(`Update error: Invalid JSON response: ${err.message}`)
+    }
+    windows.main.dispatch('updateAvailable', data.version)
+  } else if (res.statusCode === 204) {
+    // No update available
+  } else {
+    // Unexpected status code
+    log(`Update error: Unexpected status code: ${res.statusCode}`)
+  }
+}
+
+function initDarwinWin32 () {
+  electron.autoUpdater.on(
+    'error',
+    (err) => log.error(`Update error: ${err.message}`)
+  )
+
+  electron.autoUpdater.on(
+    'checking-for-update',
+    () => log('Checking for update')
+  )
+
+  electron.autoUpdater.on(
+    'update-available',
+    () => log('Update available')
+  )
+
+  electron.autoUpdater.on(
+    'update-not-available',
+    () => log('No update available')
+  )
+
+  electron.autoUpdater.on(
+    'update-downloaded',
+    (e, notes, name, date, url) => log(`Update downloaded: ${name}: ${url}`)
+  )
+
+  electron.autoUpdater.setFeedURL(AUTO_UPDATE_URL)
+  electron.autoUpdater.checkForUpdates()
+}

src/main/user-tasks.js

@@ -0,0 +1,43 @@
+module.exports = {
+  init
+}
+
+const electron = require('electron')
+
+const app = electron.app
+
+/**
+ * Add a user task menu to the app icon on right-click. (Windows)
+ */
+function init () {
+  if (process.platform !== 'win32') return
+  app.setUserTasks(getUserTasks())
+}
+
+function getUserTasks () {
+  return [
+    {
+      arguments: '-n',
+      title: 'Create New Torrent...',
+      description: 'Create a new torrent'
+    },
+    {
+      arguments: '-o',
+      title: 'Open Torrent File...',
+      description: 'Open a .torrent file'
+    },
+    {
+      arguments: '-u',
+      title: 'Open Torrent Address...',
+      description: 'Open a torrent from a URL'
+    }
+  ].map(getUserTasksItem)
+}
+
+function getUserTasksItem (item) {
+  return Object.assign(item, {
+    program: process.execPath,
+    iconPath: process.execPath,
+    iconIndex: 0
+  })
+}

src/main/windows/about.js

@@ -0,0 +1,48 @@
+const about = module.exports = {
+  init,
+  win: null
+}
+
+const config = require('../../config')
+const electron = require('electron')
+
+function init () {
+  if (about.win) {
+    return about.win.show()
+  }
+
+  const win = about.win = new electron.BrowserWindow({
+    backgroundColor: '#ECECEC',
+    center: true,
+    fullscreen: false,
+    height: 170,
+    icon: getIconPath(),
+    maximizable: false,
+    minimizable: false,
+    resizable: false,
+    show: false,
+    skipTaskbar: true,
+    title: 'About ' + config.APP_WINDOW_TITLE,
+    useContentSize: true,
+    width: 300
+  })
+
+  win.loadURL(config.WINDOW_ABOUT)
+
+  // No menu on the About window
+  win.setMenu(null)
+
+  win.once('ready-to-show', function () {
+    win.show()
+  })
+
+  win.once('closed', function () {
+    about.win = null
+  })
+}
+
+function getIconPath () {
+  return process.platform === 'win32'
+    ? config.APP_ICON + '.ico'
+    : config.APP_ICON + '.png'
+}

src/main/windows/index.js

@@ -0,0 +1,3 @@
+exports.about = require('./about')
+exports.main = require('./main')
+exports.webtorrent = require('./webtorrent')

src/main/windows/main.js

@@ -0,0 +1,263 @@
+const main = module.exports = {
+  dispatch,
+  hide,
+  init,
+  send,
+  setAspectRatio,
+  setBounds,
+  setProgress,
+  setTitle,
+  show,
+  toggleAlwaysOnTop,
+  toggleDevTools,
+  toggleFullScreen,
+  win: null
+}
+
+const electron = require('electron')
+const debounce = require('debounce')
+
+const app = electron.app
+
+const config = require('../../config')
+const log = require('../log')
+const menu = require('../menu')
+
+function init (state, options) {
+  if (main.win) {
+    return main.win.show()
+  }
+
+  const initialBounds = Object.assign(config.WINDOW_INITIAL_BOUNDS, state.saved.bounds)
+
+  const win = main.win = new electron.BrowserWindow({
+    backgroundColor: '#282828',
+    backgroundThrottling: false, // do not throttle animations/timers when page is background
+    darkTheme: true, // Forces dark theme (GTK+3)
+    height: initialBounds.height,
+    icon: getIconPath(), // Window icon (Windows, Linux)
+    minHeight: config.WINDOW_MIN_HEIGHT,
+    minWidth: config.WINDOW_MIN_WIDTH,
+    show: false,
+    title: config.APP_WINDOW_TITLE,
+    titleBarStyle: 'hidden-inset', // Hide title bar (Mac)
+    useContentSize: true, // Specify web page size without OS chrome
+    width: initialBounds.width,
+    x: initialBounds.x,
+    y: initialBounds.y
+  })
+
+  win.loadURL(config.WINDOW_MAIN)
+
+  win.once('ready-to-show', () => {
+    if (!options.hidden) win.show()
+  })
+
+  if (win.setSheetOffset) {
+    win.setSheetOffset(config.UI_HEADER_HEIGHT)
+  }
+
+  win.webContents.on('dom-ready', function () {
+    menu.onToggleFullScreen(main.win.isFullScreen())
+  })
+
+  win.webContents.on('will-navigate', (e, url) => {
+    // Prevent drag-and-drop from navigating the Electron window, which can happen
+    // before our drag-and-drop handlers have been initialized.
+    e.preventDefault()
+  })
+
+  win.on('blur', onWindowBlur)
+  win.on('focus', onWindowFocus)
+
+  win.on('hide', onWindowBlur)
+  win.on('show', onWindowFocus)
+
+  win.on('enter-full-screen', function () {
+    menu.onToggleFullScreen(true)
+    send('fullscreenChanged', true)
+    win.setMenuBarVisibility(false)
+  })
+
+  win.on('leave-full-screen', function () {
+    menu.onToggleFullScreen(false)
+    send('fullscreenChanged', false)
+    win.setMenuBarVisibility(true)
+  })
+
+  win.on('move', debounce(function (e) {
+    send('windowBoundsChanged', e.sender.getBounds())
+  }, 1000))
+
+  win.on('resize', debounce(function (e) {
+    send('windowBoundsChanged', e.sender.getBounds())
+  }, 1000))
+
+  win.on('close', function (e) {
+    if (process.platform !== 'darwin') {
+      const tray = require('../tray')
+      if (!tray.hasTray()) {
+        app.quit()
+        return
+      }
+    }
+    if (!app.isQuitting) {
+      e.preventDefault()
+      hide()
+    }
+  })
+}
+
+function dispatch (...args) {
+  send('dispatch', ...args)
+}
+
+function hide () {
+  if (!main.win) return
+  dispatch('backToList')
+  main.win.hide()
+}
+
+function send (...args) {
+  if (!main.win) return
+  main.win.send(...args)
+}
+
+/**
+ * Enforce window aspect ratio. Remove with 0. (Mac)
+ */
+function setAspectRatio (aspectRatio) {
+  if (!main.win) return
+  main.win.setAspectRatio(aspectRatio)
+}
+
+/**
+ * Change the size of the window.
+ * TODO: Clean this up? Seems overly complicated.
+ */
+function setBounds (bounds, maximize) {
+  // Do nothing in fullscreen
+  if (!main.win || main.win.isFullScreen()) {
+    log('setBounds: not setting bounds because we\'re in full screen')
+    return
+  }
+
+  // Maximize or minimize, if the second argument is present
+  let willBeMaximized
+  if (maximize === true) {
+    if (!main.win.isMaximized()) {
+      log('setBounds: maximizing')
+      main.win.maximize()
+    }
+    willBeMaximized = true
+  } else if (maximize === false) {
+    if (main.win.isMaximized()) {
+      log('setBounds: unmaximizing')
+      main.win.unmaximize()
+    }
+    willBeMaximized = false
+  } else {
+    willBeMaximized = main.win.isMaximized()
+  }
+
+  // Assuming we're not maximized or maximizing, set the window size
+  if (!willBeMaximized) {
+    log('setBounds: setting bounds to ' + JSON.stringify(bounds))
+    if (bounds.x === null && bounds.y === null) {
+      // X and Y not specified? By default, center on current screen
+      const scr = electron.screen.getDisplayMatching(main.win.getBounds())
+      bounds.x = Math.round(scr.bounds.x + scr.bounds.width / 2 - bounds.width / 2)
+      bounds.y = Math.round(scr.bounds.y + scr.bounds.height / 2 - bounds.height / 2)
+      log('setBounds: centered to ' + JSON.stringify(bounds))
+    }
+    // Resize the window's content area (so window border doesn't need to be taken
+    // into account)
+    if (bounds.contentBounds) {
+      main.win.setContentBounds(bounds, true)
+    } else {
+      main.win.setBounds(bounds, true)
+    }
+  } else {
+    log('setBounds: not setting bounds because of window maximization')
+  }
+}
+
+/**
+ * Set progress bar to [0, 1]. Indeterminate when > 1. Remove with < 0.
+ */
+function setProgress (progress) {
+  if (!main.win) return
+  main.win.setProgressBar(progress)
+}
+
+function setTitle (title) {
+  if (!main.win) return
+  main.win.setTitle(title)
+}
+
+function show () {
+  if (!main.win) return
+  main.win.show()
+}
+
+// Sets whether the window should always show on top of other windows
+function toggleAlwaysOnTop (flag) {
+  if (!main.win) return
+  if (flag == null) {
+    flag = !main.win.isAlwaysOnTop()
+  }
+  log(`toggleAlwaysOnTop ${flag}`)
+  main.win.setAlwaysOnTop(flag)
+  menu.onToggleAlwaysOnTop(flag)
+}
+
+function toggleDevTools () {
+  if (!main.win) return
+  log('toggleDevTools')
+  if (main.win.webContents.isDevToolsOpened()) {
+    main.win.webContents.closeDevTools()
+  } else {
+    main.win.webContents.openDevTools({ detach: true })
+  }
+}
+
+function toggleFullScreen (flag) {
+  if (!main.win || !main.win.isVisible()) {
+    return
+  }
+
+  if (flag == null) flag = !main.win.isFullScreen()
+
+  log(`toggleFullScreen ${flag}`)
+
+  if (flag) {
+    // Fullscreen and aspect ratio do not play well together. (Mac)
+    main.win.setAspectRatio(0)
+  }
+
+  main.win.setFullScreen(flag)
+}
+
+function onWindowBlur () {
+  menu.setWindowFocus(false)
+
+  if (process.platform !== 'darwin') {
+    const tray = require('../tray')
+    tray.setWindowFocus(false)
+  }
+}
+
+function onWindowFocus () {
+  menu.setWindowFocus(true)
+
+  if (process.platform !== 'darwin') {
+    const tray = require('../tray')
+    tray.setWindowFocus(true)
+  }
+}
+
+function getIconPath () {
+  return process.platform === 'win32'
+    ? config.APP_ICON + '.ico'
+    : config.APP_ICON + '.png'
+}

src/main/windows/webtorrent.js

@@ -0,0 +1,61 @@
+const webtorrent = module.exports = {
+  init,
+  send,
+  show,
+  toggleDevTools,
+  win: null
+}
+
+const electron = require('electron')
+
+const config = require('../../config')
+
+function init () {
+  const win = webtorrent.win = new electron.BrowserWindow({
+    backgroundColor: '#1E1E1E',
+    backgroundThrottling: false, // do not throttle animations/timers when page is background
+    center: true,
+    fullscreen: false,
+    fullscreenable: false,
+    height: 150,
+    maximizable: false,
+    minimizable: false,
+    resizable: false,
+    show: false,
+    skipTaskbar: true,
+    title: 'webtorrent-hidden-window',
+    useContentSize: true,
+    width: 150
+  })
+
+  win.loadURL(config.WINDOW_WEBTORRENT)
+
+  // Prevent killing the WebTorrent process
+  win.on('close', function (e) {
+    if (electron.app.isQuitting) {
+      return
+    }
+    e.preventDefault()
+    win.hide()
+  })
+}
+
+function show () {
+  if (!webtorrent.win) return
+  webtorrent.win.show()
+}
+
+function send (...args) {
+  if (!webtorrent.win) return
+  webtorrent.win.send(...args)
+}
+
+function toggleDevTools () {
+  if (!webtorrent.win) return
+  if (webtorrent.win.webContents.isDevToolsOpened()) {
+    webtorrent.win.webContents.closeDevTools()
+    webtorrent.win.hide()
+  } else {
+    webtorrent.win.webContents.openDevTools({ detach: true })
+  }
+}

src/renderer/components/create-torrent-error-page.js

@@ -0,0 +1,26 @@
+const React = require('react')
+
+const {dispatcher} = require('../lib/dispatcher')
+
+module.exports = class CreateTorrentErrorPage extends React.Component {
+  render () {
+    return (
+      <div className='create-torrent'>
+        <h2>Create torrent</h2>
+        <p className='torrent-info'>
+          <p>
+            Sorry, you must select at least one file that is not a hidden file.
+          </p>
+          <p>
+            Hidden files, starting with a . character, are not included.
+          </p>
+        </p>
+        <p className='float-right'>
+          <button className='button-flat light' onClick={dispatcher('cancel')}>
+            Cancel
+          </button>
+        </p>
+      </div>
+    )
+  }
+}

src/renderer/components/header.js

@@ -0,0 +1,55 @@
+const React = require('react')
+
+const {dispatcher} = require('../lib/dispatcher')
+
+class Header extends React.Component {
+  render () {
+    const loc = this.props.state.location
+    return (
+      <div className='header'
+        onMouseMove={dispatcher('mediaMouseMoved')}
+        onMouseEnter={dispatcher('mediaControlsMouseEnter')}
+        onMouseLeave={dispatcher('mediaControlsMouseLeave')}>
+        {this.getTitle()}
+        <div className='nav left float-left'>
+          <i
+            className={'icon back ' + (loc.hasBack() ? '' : 'disabled')}
+            title='Back'
+            onClick={dispatcher('back')}>
+            chevron_left
+          </i>
+          <i
+            className={'icon forward ' + (loc.hasForward() ? '' : 'disabled')}
+            title='Forward'
+            onClick={dispatcher('forward')}>
+            chevron_right
+          </i>
+        </div>
+        <div className='nav right float-right'>
+          {this.getAddButton()}
+        </div>
+      </div>
+    )
+  }
+
+  getTitle () {
+    if (process.platform !== 'darwin') return null
+    const state = this.props.state
+    return (<div className='title ellipsis'>{state.window.title}</div>)
+  }
+
+  getAddButton () {
+    const state = this.props.state
+    if (state.location.url() !== 'home') return null
+    return (
+      <i
+        className='icon add'
+        title='Add torrent'
+        onClick={dispatcher('openFiles')}>
+        add
+      </i>
+    )
+  }
+}
+
+module.exports = Header

src/renderer/components/heading.js

@@ -0,0 +1,34 @@
+const React = require('react')
+
+const colors = require('material-ui/styles/colors')
+
+class Heading extends React.Component {
+  static get propTypes () {
+    return {
+      level: React.PropTypes.number
+    }
+  }
+
+  static get defaultProps () {
+    return {
+      level: 1
+    }
+  }
+
+  render () {
+    const HeadingTag = 'h' + this.props.level
+    const style = {
+      color: colors.grey100,
+      fontSize: 20,
+      marginBottom: 15,
+      marginTop: 30
+    }
+    return (
+      <HeadingTag style={style}>
+        {this.props.children}
+      </HeadingTag>
+    )
+  }
+}
+
+module.exports = Heading

src/renderer/components/modal-ok-cancel.js

@@ -0,0 +1,25 @@
+const React = require('react')
+const FlatButton = require('material-ui/FlatButton').default
+const RaisedButton = require('material-ui/RaisedButton').default
+
+module.exports = class ModalOKCancel extends React.Component {
+  render () {
+    const cancelStyle = { marginRight: 10, color: 'black' }
+    const {cancelText, onCancel, okText, onOK} = this.props
+    return (
+      <div className='float-right'>
+        <FlatButton
+          className='control cancel'
+          style={cancelStyle}
+          label={cancelText}
+          onClick={onCancel} />
+        <RaisedButton
+          className='control ok'
+          primary
+          label={okText}
+          onClick={onOK}
+          autoFocus />
+      </div>
+    )
+  }
+}

src/renderer/components/open-torrent-address-modal.js

@@ -0,0 +1,41 @@
+const React = require('react')
+const TextField = require('material-ui/TextField').default
+
+const ModalOKCancel = require('./modal-ok-cancel')
+const {dispatch, dispatcher} = require('../lib/dispatcher')
+
+module.exports = class OpenTorrentAddressModal extends React.Component {
+  render () {
+    return (
+      <div className='open-torrent-address-modal'>
+        <p><label>Enter torrent address or magnet link</label></p>
+        <div>
+          <TextField
+            id='torrent-address-field'
+            className='control'
+            ref={(c) => { this.torrentURL = c }}
+            fullWidth
+            onKeyDown={handleKeyDown.bind(this)} />
+        </div>
+        <ModalOKCancel
+          cancelText='CANCEL'
+          onCancel={dispatcher('exitModal')}
+          okText='OK'
+          onOK={handleOK.bind(this)} />
+      </div>
+    )
+  }
+
+  componentDidMount () {
+    this.torrentURL.input.focus()
+  }
+}
+
+function handleKeyDown (e) {
+  if (e.which === 13) handleOK.call(this) /* hit Enter to submit */
+}
+
+function handleOK () {
+  dispatch('exitModal')
+  dispatch('addTorrent', this.torrentURL.input.value)
+}

src/renderer/components/path-selector.js

@@ -0,0 +1,86 @@
+const colors = require('material-ui/styles/colors')
+const electron = require('electron')
+const React = require('react')
+
+const remote = electron.remote
+
+const RaisedButton = require('material-ui/RaisedButton').default
+const TextField = require('material-ui/TextField').default
+
+// Lets you pick a file or directory.
+// Uses the system Open File dialog.
+// You can't edit the text field directly.
+class PathSelector extends React.Component {
+  static get propTypes () {
+    return {
+      className: React.PropTypes.string,
+      dialog: React.PropTypes.object,
+      displayValue: React.PropTypes.string,
+      id: React.PropTypes.string,
+      onChange: React.PropTypes.func,
+      title: React.PropTypes.string.isRequired,
+      value: React.PropTypes.string
+    }
+  }
+
+  constructor (props) {
+    super(props)
+    this.handleClick = this.handleClick.bind(this)
+  }
+
+  handleClick () {
+    const opts = Object.assign({
+      defaultPath: this.props.value,
+      properties: [ 'openFile', 'openDirectory' ]
+    }, this.props.dialog)
+
+    remote.dialog.showOpenDialog(
+      remote.getCurrentWindow(),
+      opts,
+      (filenames) => {
+        if (!Array.isArray(filenames)) return
+        this.props.onChange && this.props.onChange(filenames[0])
+      }
+    )
+  }
+
+  render () {
+    const id = this.props.title.replace(' ', '-').toLowerCase()
+    const wrapperStyle = {
+      alignItems: 'center',
+      display: 'flex',
+      width: '100%'
+    }
+    const labelStyle = {
+      flex: '0 auto',
+      marginRight: 10,
+      overflow: 'hidden',
+      textOverflow: 'ellipsis',
+      whiteSpace: 'nowrap'
+    }
+    const textareaStyle = {
+      color: colors.grey50
+    }
+    const textFieldStyle = {
+      flex: '1'
+    }
+    const text = this.props.displayValue || this.props.value
+    const buttonStyle = {
+      marginLeft: 10
+    }
+
+    return (
+      <div className={this.props.className} style={wrapperStyle}>
+        <div className='label' style={labelStyle}>
+          {this.props.title}:
+        </div>
+        <TextField className='control' disabled id={id} value={text}
+          inputStyle={textareaStyle} style={textFieldStyle} />
+        <RaisedButton className='control' label='Change' onClick={this.handleClick}
+          style={buttonStyle} />
+      </div>
+    )
+  }
+}
+
+module.exports = PathSelector

src/renderer/components/remove-torrent-modal.js

@@ -0,0 +1,30 @@
+const React = require('react')
+
+const ModalOKCancel = require('./modal-ok-cancel')
+const {dispatch, dispatcher} = require('../lib/dispatcher')
+
+module.exports = class RemoveTorrentModal extends React.Component {
+  render () {
+    const state = this.props.state
+    const message = state.modal.deleteData
+      ? 'Are you sure you want to remove this torrent from the list and delete the data file?'
+      : 'Are you sure you want to remove this torrent from the list?'
+    const buttonText = state.modal.deleteData ? 'REMOVE DATA' : 'REMOVE'
+
+    return (
+      <div>
+        <p><strong>{message}</strong></p>
+        <ModalOKCancel
+          cancelText='CANCEL'
+          onCancel={dispatcher('exitModal')}
+          okText={buttonText}
+          onOK={handleRemove} />
+      </div>
+    )
+
+    function handleRemove () {
+      dispatch('deleteTorrent', state.modal.infoHash, state.modal.deleteData)
+      dispatch('exitModal')
+    }
+  }
+}

src/renderer/components/show-more.js

@@ -0,0 +1,53 @@
+const React = require('react')
+
+const RaisedButton = require('material-ui/RaisedButton').default
+
+class ShowMore extends React.Component {
+  static get propTypes () {
+    return {
+      defaultExpanded: React.PropTypes.bool,
+      hideLabel: React.PropTypes.string,
+      showLabel: React.PropTypes.string
+    }
+  }
+
+  static get defaultProps () {
+    return {
+      hideLabel: 'Hide more...',
+      showLabel: 'Show more...'
+    }
+  }
+
+  constructor (props) {
+    super(props)
+
+    this.state = {
+      expanded: !!this.props.defaultExpanded
+    }
+
+    this.handleClick = this.handleClick.bind(this)
+  }
+
+  handleClick () {
+    this.setState({
+      expanded: !this.state.expanded
+    })
+  }
+
+  render () {
+    const label = this.state.expanded
+      ? this.props.hideLabel
+      : this.props.showLabel
+    return (
+      <div className='show-more' style={this.props.style}>
+        {this.state.expanded ? this.props.children : null}
+        <RaisedButton
+          className='control'
+          onClick={this.handleClick}
+          label={label} />
+      </div>
+    )
+  }
+}
+
+module.exports = ShowMore

src/renderer/components/unsupported-media-modal.js

@@ -0,0 +1,44 @@
+const React = require('react')
+const electron = require('electron')
+
+const ModalOKCancel = require('./modal-ok-cancel')
+const {dispatcher} = require('../lib/dispatcher')
+
+module.exports = class UnsupportedMediaModal extends React.Component {
+  render () {
+    const state = this.props.state
+    const err = state.modal.error
+    const message = (err && err.getMessage)
+      ? err.getMessage()
+      : err
+    const onAction = state.modal.externalPlayerInstalled
+      ? dispatcher('openExternalPlayer')
+      : () => this.onInstall()
+    const actionText = state.modal.externalPlayerInstalled
+      ? 'PLAY IN ' + state.getExternalPlayerName().toUpperCase()
+      : 'INSTALL VLC'
+    const errorMessage = state.modal.externalPlayerNotFound
+      ? 'Couldn\'t run external player. Please make sure it\'s installed.'
+      : ''
+    return (
+      <div>
+        <p><strong>Sorry, we can't play that file.</strong></p>
+        <p>{message}</p>
+        <ModalOKCancel
+          cancelText='CANCEL'
+          onCancel={dispatcher('backToList')}
+          okText={actionText}
+          onOK={onAction} />
+        <p className='error-text'>{errorMessage}</p>
+      </div>
+    )
+  }
+
+  onInstall () {
+    electron.shell.openExternal('http://www.videolan.org/vlc/')
+
+    // TODO: dcposch send a dispatch rather than modifying state directly
+    const state = this.props.state
+    state.modal.externalPlayerInstalled = true // Assume they'll install it successfully
+  }
+}

src/renderer/components/update-available-modal.js

@@ -0,0 +1,35 @@
+const React = require('react')
+const electron = require('electron')
+
+const ModalOKCancel = require('./modal-ok-cancel')
+const {dispatch} = require('../lib/dispatcher')
+
+module.exports = class UpdateAvailableModal extends React.Component {
+  render () {
+    const state = this.props.state
+    return (
+      <div className='update-available-modal'>
+        <p><strong>A new version of WebTorrent is available: v{state.modal.version}</strong></p>
+        <p>
+          We have an auto-updater for Windows and Mac.
+          We don't have one for Linux yet, so you'll have to download the new version manually.
+        </p>
+        <ModalOKCancel
+          cancelText='SKIP THIS RELEASE'
+          onCancel={handleSkip}
+          okText='SHOW DOWNLOAD PAGE'
+          onOK={handleShow} />
+      </div>
+    )
+
+    function handleShow () {
+      electron.shell.openExternal('https://github.com/feross/webtorrent-desktop/releases')
+      dispatch('exitModal')
+    }
+
+    function handleSkip () {
+      dispatch('skipVersion', state.modal.version)
+      dispatch('exitModal')
+    }
+  }
+}

src/renderer/controllers/media-controller.js

@@ -0,0 +1,80 @@
+const {ipcRenderer} = require('electron')
+const telemetry = require('../lib/telemetry')
+const Playlist = require('../lib/playlist')
+
+// Controls local play back: the <video>/<audio> tag and VLC
+// Does not control remote casting (Chromecast etc)
+module.exports = class MediaController {
+  constructor (state) {
+    this.state = state
+  }
+
+  mediaSuccess () {
+    telemetry.logPlayAttempt('success')
+  }
+
+  mediaStalled () {
+    this.state.playing.isStalled = true
+  }
+
+  mediaError (error) {
+    const state = this.state
+    if (state.location.url() === 'player') {
+      telemetry.logPlayAttempt('error')
+      state.playing.location = 'error'
+      ipcRenderer.send('checkForExternalPlayer', state.saved.prefs.externalPlayerPath)
+      ipcRenderer.once('checkForExternalPlayer', function (e, isInstalled) {
+        state.modal = {
+          id: 'unsupported-media-modal',
+          error: error,
+          externalPlayerInstalled: isInstalled
+        }
+      })
+    }
+  }
+
+  mediaTimeUpdate () {
+    this.state.playing.lastTimeUpdate = new Date().getTime()
+    this.state.playing.isStalled = false
+  }
+
+  mediaMouseMoved () {
+    this.state.playing.mouseStationarySince = new Date().getTime()
+  }
+
+  controlsMouseEnter () {
+    this.state.playing.mouseInControls = true
+    this.state.playing.mouseStationarySince = new Date().getTime()
+  }
+
+  controlsMouseLeave () {
+    this.state.playing.mouseInControls = false
+    this.state.playing.mouseStationarySince = new Date().getTime()
+  }
+
+  openExternalPlayer () {
+    const state = this.state
+    state.playing.location = 'external'
+
+    const onServerRunning = function () {
+      state.playing.isReady = true
+      telemetry.logPlayAttempt('external')
+
+      const mediaURL = Playlist.getCurrentLocalURL(state)
+      ipcRenderer.send('openExternalPlayer',
+        state.saved.prefs.externalPlayerPath,
+        mediaURL,
+        state.window.title)
+    }
+
+    if (state.server != null) onServerRunning()
+    else ipcRenderer.once('wt-server-running', onServerRunning)
+  }
+
+  externalPlayerNotFound () {
+    const modal = this.state.modal
+    if (modal && modal.id === 'unsupported-media-modal') {
+      modal.externalPlayerNotFound = true
+    }
+  }
+}

src/renderer/controllers/playback-controller.js

@@ -0,0 +1,362 @@
+const electron = require('electron')
+const path = require('path')
+
+const Cast = require('../lib/cast')
+const {dispatch} = require('../lib/dispatcher')
+const telemetry = require('../lib/telemetry')
+const {UnplayableFileError, UnplayableTorrentError} = require('../lib/errors')
+const sound = require('../lib/sound')
+const TorrentPlayer = require('../lib/torrent-player')
+const TorrentSummary = require('../lib/torrent-summary')
+const Playlist = require('../lib/playlist')
+const State = require('../lib/state')
+
+const ipcRenderer = electron.ipcRenderer
+
+// Controls playback of torrents and files within torrents
+// both local (<video>,<audio>,external player) and remote (cast)
+module.exports = class PlaybackController {
+  constructor (state, config, update) {
+    this.state = state
+    this.config = config
+    this.update = update
+  }
+
+  // Play a file in a torrent.
+  // * Start torrenting, if necessary
+  // * Stream, if not already fully downloaded
+  // * If no file index is provided, restore the most recently viewed file or autoplay the first
+  playFile (infoHash, index /* optional */) {
+    const state = this.state
+    if (state.location.url() === 'player') {
+      this.updatePlayer(infoHash, index, false, (err) => {
+        if (err) dispatch('error', err)
+        else this.play()
+      })
+    } else {
+      let initialized = false
+      state.location.go({
+        url: 'player',
+        setup: (cb) => {
+          const torrentSummary = TorrentSummary.getByKey(state, infoHash)
+
+          if (index === undefined || initialized) index = torrentSummary.mostRecentFileIndex
+          if (index === undefined) index = torrentSummary.files.findIndex(TorrentPlayer.isPlayable)
+          if (index === undefined) return cb(new UnplayableTorrentError())
+
+          initialized = true
+
+          this.openPlayer(infoHash, index, (err) => {
+            if (!err) this.play()
+            cb(err)
+          })
+        },
+        destroy: () => this.closePlayer()
+      }, (err) => {
+        if (err) dispatch('error', err)
+      })
+    }
+  }
+
+  // Open a file in OS default app.
+  openItem (infoHash, index) {
+    const torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    const filePath = path.join(
+      torrentSummary.path,
+      torrentSummary.files[index].path)
+    ipcRenderer.send('openItem', filePath)
+  }
+
+  // Toggle (play or pause) the currently playing media
+  playPause () {
+    const state = this.state
+    if (state.location.url() !== 'player') return
+
+    // force rerendering if window is hidden,
+    // in order to bypass `raf` and play/pause media immediately
+    const mediaTag = document.querySelector('video,audio')
+    if (!state.window.isVisible && mediaTag) {
+      if (state.playing.isPaused) mediaTag.play()
+      else mediaTag.pause()
+    }
+
+    if (state.playing.isPaused) this.play()
+    else this.pause()
+  }
+
+  // Play next file in list (if any)
+  nextTrack () {
+    const state = this.state
+    if (Playlist.hasNext(state) && state.playing.location !== 'external') {
+      this.updatePlayer(
+          state.playing.infoHash, Playlist.getNextIndex(state), false, (err) => {
+            if (err) dispatch('error', err)
+            else this.play()
+          })
+    }
+  }
+
+  // Play previous track in list (if any)
+  previousTrack () {
+    const state = this.state
+    if (Playlist.hasPrevious(state) && state.playing.location !== 'external') {
+      this.updatePlayer(
+        state.playing.infoHash, Playlist.getPreviousIndex(state), false, (err) => {
+          if (err) dispatch('error', err)
+          else this.play()
+        })
+    }
+  }
+
+  // Play (unpause) the current media
+  play () {
+    const state = this.state
+    if (!state.playing.isPaused) return
+    state.playing.isPaused = false
+    if (isCasting(state)) {
+      Cast.play()
+    }
+    ipcRenderer.send('onPlayerPlay')
+  }
+
+  // Pause the currently playing media
+  pause () {
+    const state = this.state
+    if (state.playing.isPaused) return
+    state.playing.isPaused = true
+    if (isCasting(state)) {
+      Cast.pause()
+    }
+    ipcRenderer.send('onPlayerPause')
+  }
+
+  // Skip specified number of seconds (backwards if negative)
+  skip (time) {
+    this.skipTo(this.state.playing.currentTime + time)
+  }
+
+  // Skip (aka seek) to a specific point, in seconds
+  skipTo (time) {
+    if (!Number.isFinite(time)) {
+      console.error('Tried to skip to a non-finite time ' + time)
+      return console.trace()
+    }
+    if (isCasting(this.state)) Cast.seek(time)
+    else this.state.playing.jumpToTime = time
+  }
+
+  // Change playback speed. 1 = faster, -1 = slower
+  // Playback speed ranges from 16 (fast forward) to 1 (normal playback)
+  // to 0.25 (quarter-speed playback), then goes to -0.25, -0.5, -1, -2, etc
+  // until -16 (fast rewind)
+  changePlaybackRate (direction) {
+    const state = this.state
+    let rate = state.playing.playbackRate
+    if (direction > 0 && rate < 2) {
+      rate += 0.25
+    } else if (direction < 0 && rate > 0.25 && rate <= 2) {
+      rate -= 0.25
+    } else if (direction > 0 && rate >= 1 && rate < 16) {
+      rate *= 2
+    } else if (direction < 0 && rate > 1 && rate <= 16) {
+      rate /= 2
+    }
+    state.playing.playbackRate = rate
+    if (isCasting(state) && !Cast.setRate(rate)) {
+      state.playing.playbackRate = 1
+    }
+    // Wait a bit before we hide the controls and header again
+    state.playing.mouseStationarySince = new Date().getTime()
+  }
+
+  // Change the volume, in range [0, 1], by some amount
+  // For example, volume muted (0), changeVolume (0.3) increases to 30% volume
+  changeVolume (delta) {
+    // change volume with delta value
+    this.setVolume(this.state.playing.volume + delta)
+  }
+
+  // Set the volume to some value in [0, 1]
+  setVolume (volume) {
+    // check if its in [0.0 - 1.0] range
+    volume = Math.max(0, Math.min(1, volume))
+
+    const state = this.state
+    if (isCasting(state)) {
+      Cast.setVolume(volume)
+    } else {
+      state.playing.setVolume = volume
+    }
+  }
+
+  // Hide player controls while playing video, if the mouse stays still for a while
+  // Never hide the controls when:
+  // * The mouse is over the controls or we're scrubbing (see CSS)
+  // * The video is paused
+  // * The video is playing remotely on Chromecast or Airplay
+  showOrHidePlayerControls () {
+    const state = this.state
+    const hideControls = state.shouldHidePlayerControls()
+
+    if (hideControls !== state.playing.hideControls) {
+      state.playing.hideControls = hideControls
+      return true
+    }
+    return false
+  }
+
+  // Opens the video player to a specific torrent
+  openPlayer (infoHash, index, cb) {
+    const state = this.state
+    const torrentSummary = TorrentSummary.getByKey(state, infoHash)
+
+    state.playing.infoHash = torrentSummary.infoHash
+    state.playing.isReady = false
+
+    // update UI to show pending playback
+    sound.play('PLAY')
+
+    this.startServer(torrentSummary)
+    ipcRenderer.send('onPlayerOpen')
+    this.updatePlayer(infoHash, index, true, cb)
+  }
+
+  // Starts WebTorrent server for media streaming
+  startServer (torrentSummary) {
+    const state = this.state
+
+    if (torrentSummary.status === 'paused') {
+      dispatch('startTorrentingSummary', torrentSummary.torrentKey)
+      ipcRenderer.once('wt-ready-' + torrentSummary.infoHash,
+        () => onTorrentReady())
+    } else {
+      onTorrentReady()
+    }
+
+    function onTorrentReady () {
+      ipcRenderer.send('wt-start-server', torrentSummary.infoHash)
+      ipcRenderer.once('wt-server-running', () => { state.playing.isReady = true })
+    }
+  }
+
+  // Called each time the current file changes
+  updatePlayer (infoHash, index, resume, cb) {
+    const state = this.state
+
+    const torrentSummary = TorrentSummary.getByKey(state, infoHash)
+    const fileSummary = torrentSummary.files[index]
+
+    if (!TorrentPlayer.isPlayable(fileSummary)) {
+      torrentSummary.mostRecentFileIndex = undefined
+      return cb(new UnplayableFileError())
+    }
+
+    torrentSummary.mostRecentFileIndex = index
+
+    // update state
+    state.playing.infoHash = infoHash
+    state.playing.fileIndex = index
+    state.playing.type = TorrentPlayer.isVideo(fileSummary) ? 'video'
+      : TorrentPlayer.isAudio(fileSummary) ? 'audio'
+      : 'other'
+
+    // pick up where we left off
+    let jumpToTime = 0
+    if (resume && fileSummary.currentTime) {
+      const fraction = fileSummary.currentTime / fileSummary.duration
+      const secondsLeft = fileSummary.duration - fileSummary.currentTime
+      if (fraction < 0.9 && secondsLeft > 10) {
+        jumpToTime = fileSummary.currentTime
+      }
+    }
+    state.playing.jumpToTime = jumpToTime
+
+    // if it's audio, parse out the metadata (artist, title, etc)
+    if (torrentSummary.status === 'paused') {
+      ipcRenderer.once('wt-ready-' + torrentSummary.infoHash, getAudioMetadata)
+    } else {
+      getAudioMetadata()
+    }
+
+    function getAudioMetadata () {
+      if (state.playing.type === 'audio' && !fileSummary.audioInfo) {
+        ipcRenderer.send('wt-get-audio-metadata', torrentSummary.infoHash, index)
+      }
+    }
+
+    // if it's video, check for subtitles files that are done downloading
+    dispatch('checkForSubtitles')
+
+    // enable previously selected subtitle track
+    if (fileSummary.selectedSubtitle) {
+      dispatch('addSubtitles', [fileSummary.selectedSubtitle], true)
+    }
+
+    state.window.title = fileSummary.name
+
+    // play in VLC if set as default player (Preferences / Playback / Play in VLC)
+    if (this.state.saved.prefs.openExternalPlayer) {
+      dispatch('openExternalPlayer')
+      this.update()
+      cb()
+      return
+    }
+
+    // otherwise, play the video
+    this.update()
+
+    ipcRenderer.send('onPlayerUpdate', Playlist.hasNext(state), Playlist.hasPrevious(state))
+    cb()
+  }
+
+  closePlayer () {
+    console.log('closePlayer')
+
+    // Quit any external players, like Chromecast/Airplay/etc or VLC
+    const state = this.state
+    if (isCasting(state)) {
+      Cast.stop()
+    }
+    if (state.playing.location === 'external') {
+      ipcRenderer.send('quitExternalPlayer')
+    }
+
+    // Save volume (this session only, not in state.saved)
+    state.previousVolume = state.playing.volume
+
+    if (!state.playing.isReady) telemetry.logPlayAttempt('abandoned') // user gave up waiting
+
+    // Reset the window contents back to the home screen
+    state.playing = State.getDefaultPlayState()
+    state.server = null
+
+    // Reset the window size and location back to where it was
+    if (state.window.isFullScreen) {
+      dispatch('toggleFullScreen', false)
+    }
+    restoreBounds(state)
+
+    // Tell the WebTorrent process to kill the torrent-to-HTTP server
+    ipcRenderer.send('wt-stop-server')
+
+    ipcRenderer.send('onPlayerClose')
+
+    this.update()
+  }
+}
+
+// Checks whether we are connected and already casting
+// Returns false if we not casting (state.playing.location === 'local')
+// or if we're trying to connect but haven't yet ('chromecast-pending', etc)
+function isCasting (state) {
+  return state.playing.location === 'chromecast' ||
+    state.playing.location === 'airplay' ||
+    state.playing.location === 'dlna'
+}
+
+function restoreBounds (state) {
+  ipcRenderer.send('setAspectRatio', 0)
+  if (state.window.bounds) {
+    ipcRenderer.send('setBounds', state.window.bounds, false)
+  }
+}

src/renderer/controllers/prefs-controller.js

@@ -0,0 +1,61 @@
+const {dispatch} = require('../lib/dispatcher')
+const ipcRenderer = require('electron').ipcRenderer
+
+// Controls the Preferences screen
+module.exports = class PrefsController {
+  constructor (state, config) {
+    this.state = state
+    this.config = config
+  }
+
+  // Goes to the Preferences screen
+  show () {
+    const state = this.state
+    state.location.go({
+      url: 'preferences',
+      setup: function (cb) {
+        // initialize preferences
+        state.window.title = 'Preferences'
+        state.unsaved = Object.assign(state.unsaved || {}, {
+          prefs: Object.assign({}, state.saved.prefs)
+        })
+        ipcRenderer.send('setAllowNav', false)
+        cb()
+      },
+      destroy: () => {
+        ipcRenderer.send('setAllowNav', true)
+        this.save()
+      }
+    })
+  }
+
+  // Updates a single property in the UNSAVED prefs
+  // For example: updatePreferences('foo.bar', 'baz')
+  // Call save() to save to config.json
+  update (property, value) {
+    const path = property.split('.')
+    let obj = this.state.unsaved.prefs
+    let i
+    for (i = 0; i < path.length - 1; i++) {
+      if (typeof obj[path[i]] === 'undefined') {
+        obj[path[i]] = {}
+      }
+      obj = obj[path[i]]
+    }
+    obj[path[i]] = value
+  }
+
+  // All unsaved prefs take effect atomically, and are saved to config.json
+  save () {
+    const state = this.state
+    if (state.unsaved.prefs.isFileHandler !== state.saved.prefs.isFileHandler) {
+      ipcRenderer.send('setDefaultFileHandler', state.unsaved.prefs.isFileHandler)
+    }
+    if (state.unsaved.prefs.startup !== state.saved.prefs.startup) {
+      ipcRenderer.send('setStartup', state.unsaved.prefs.startup)
+    }
+    state.saved.prefs = Object.assign(state.saved.prefs || {}, state.unsaved.prefs)
+    dispatch('stateSaveImmediate')
+    dispatch('checkDownloadPath')
+  }
+}

src/renderer/controllers/subtitles-controller.js

@@ -0,0 +1,138 @@
+const electron = require('electron')
+const fs = require('fs')
+const path = require('path')
+const parallel = require('run-parallel')
+
+const remote = electron.remote
+
+const {dispatch} = require('../lib/dispatcher')
+
+module.exports = class SubtitlesController {
+  constructor (state) {
+    this.state = state
+  }
+
+  openSubtitles () {
+    remote.dialog.showOpenDialog({
+      title: 'Select a subtitles file.',
+      filters: [ { name: 'Subtitles', extensions: ['vtt', 'srt'] } ],
+      properties: [ 'openFile' ]
+    }, (filenames) => {
+      if (!Array.isArray(filenames)) return
+      this.addSubtitles(filenames, true)
+    })
+  }
+
+  selectSubtitle (ix) {
+    this.state.playing.subtitles.selectedIndex = ix
+  }
+
+  toggleSubtitlesMenu () {
+    const subtitles = this.state.playing.subtitles
+    subtitles.showMenu = !subtitles.showMenu
+  }
+
+  addSubtitles (files, autoSelect) {
+    // Subtitles are only supported when playing video files
+    if (this.state.playing.type !== 'video') return
+    if (files.length === 0) return
+    const subtitles = this.state.playing.subtitles
+
+    // Read the files concurrently, then add all resulting subtitle tracks
+    const tasks = files.map((file) => (cb) => loadSubtitle(file, cb))
+    parallel(tasks, function (err, tracks) {
+      if (err) return dispatch('error', err)
+
+      for (let i = 0; i < tracks.length; i++) {
+        // No dupes allowed
+        const track = tracks[i]
+        let trackIndex = subtitles.tracks.findIndex((t) =>
+          track.filePath === t.filePath)
+
+        // Add the track
+        if (trackIndex === -1) {
+          trackIndex = subtitles.tracks.push(track) - 1
+        }
+
+        // If we're auto-selecting a track, try to find one in the user's language
+        if (autoSelect && (i === 0 || isSystemLanguage(track.language))) {
+          subtitles.selectedIndex = trackIndex
+        }
+      }
+
+      // Finally, make sure no two tracks have the same label
+      relabelSubtitles(subtitles)
+    })
+  }
+
+  checkForSubtitles () {
+    if (this.state.playing.type !== 'video') return
+    const torrentSummary = this.state.getPlayingTorrentSummary()
+    if (!torrentSummary || !torrentSummary.progress) return
+
+    torrentSummary.progress.files.forEach((fp, ix) => {
+      if (fp.numPieces !== fp.numPiecesPresent) return // ignore incomplete files
+      const file = torrentSummary.files[ix]
+      if (!this.isSubtitle(file.name)) return
+      const filePath = path.join(torrentSummary.path, file.path)
+      this.addSubtitles([filePath], false)
+    })
+  }
+
+  isSubtitle (file) {
+    const name = typeof file === 'string' ? file : file.name
+    const ext = path.extname(name).toLowerCase()
+    return ext === '.srt' || ext === '.vtt'
+  }
+}
+
+function loadSubtitle (file, cb) {
+  // Lazy load to keep startup fast
+  const concat = require('simple-concat')
+  const LanguageDetect = require('languagedetect')
+  const srtToVtt = require('srt-to-vtt')
+
+  // Read the .SRT or .VTT file, parse it, add subtitle track
+  const filePath = file.path || file
+
+  const vttStream = fs.createReadStream(filePath).pipe(srtToVtt())
+
+  concat(vttStream, function (err, buf) {
+    if (err) return dispatch('error', 'Can\'t parse subtitles file.')
+
+    // Detect what language the subtitles are in
+    const vttContents = buf.toString().replace(/(.*-->.*)/g, '')
+    let langDetected = (new LanguageDetect()).detect(vttContents, 2)
+    langDetected = langDetected.length ? langDetected[0][0] : 'subtitle'
+    langDetected = langDetected.slice(0, 1).toUpperCase() + langDetected.slice(1)
+
+    const track = {
+      buffer: 'data:text/vtt;base64,' + buf.toString('base64'),
+      language: langDetected,
+      label: langDetected,
+      filePath: filePath
+    }
+
+    cb(null, track)
+  })
+}
+
+// Checks whether a language name like 'English' or 'German' matches the system
+// language, aka the current locale
+function isSystemLanguage (language) {
+  const iso639 = require('iso-639-1')
+  const osLangISO = window.navigator.language.split('-')[0] // eg 'en'
+  const langIso = iso639.getCode(language) // eg 'de' if language is 'German'
+  return langIso === osLangISO
+}
+
+// Make sure we don't have two subtitle tracks with the same label
+// Labels each track by language, eg 'German', 'English', 'English 2', ...
+function relabelSubtitles (subtitles) {
+  const counts = {}
+  subtitles.tracks.forEach(function (track) {
+    const lang = track.language
+    counts[lang] = (counts[lang] || 0) + 1
+    track.label = counts[lang] > 1 ? (lang + ' ' + counts[lang]) : lang
+  })
+}

src/renderer/controllers/torrent-controller.js

@@ -0,0 +1,186 @@
+const path = require('path')
+const ipcRenderer = require('electron').ipcRenderer
+
+const TorrentSummary = require('../lib/torrent-summary')
+const sound = require('../lib/sound')
+const {dispatch} = require('../lib/dispatcher')
+
+module.exports = class TorrentController {
+  constructor (state) {
+    this.state = state
+  }
+
+  torrentInfoHash (torrentKey, infoHash) {
+    let torrentSummary = this.getTorrentSummary(torrentKey)
+    console.log('got infohash for %s torrent %s',
+      torrentSummary ? 'existing' : 'new', torrentKey)
+
+    if (!torrentSummary) {
+      const torrents = this.state.saved.torrents
+
+      // Check if an existing (non-active) torrent has the same info hash
+      if (torrents.find((t) => t.infoHash === infoHash)) {
+        ipcRenderer.send('wt-stop-torrenting', infoHash)
+        return dispatch('error', 'Cannot add duplicate torrent')
+      }
+
+      torrentSummary = {
+        torrentKey: torrentKey,
+        status: 'new'
+      }
+      torrents.unshift(torrentSummary)
+      sound.play('ADD')
+    }
+
+    torrentSummary.infoHash = infoHash
+    dispatch('update')
+  }
+
+  torrentWarning (torrentKey, message) {
+    console.log('warning for torrent %s: %s', torrentKey, message)
+  }
+
+  torrentError (torrentKey, message) {
+    // TODO: WebTorrent needs semantic errors
+    if (message.startsWith('Cannot add duplicate torrent')) {
+      // Remove infohash from the message
+      message = 'Cannot add duplicate torrent'
+    }
+    dispatch('error', message)
+
+    const torrentSummary = this.getTorrentSummary(torrentKey)
+    if (torrentSummary) {
+      console.log('Pausing torrent %s due to error: %s', torrentSummary.infoHash, message)
+      torrentSummary.status = 'paused'
+      dispatch('update')
+    }
+  }
+
+  torrentMetadata (torrentKey, torrentInfo) {
+    // Summarize torrent
+    const torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.status = 'downloading'
+    torrentSummary.name = torrentSummary.displayName || torrentInfo.name
+    torrentSummary.path = torrentInfo.path
+    torrentSummary.magnetURI = torrentInfo.magnetURI
+    // TODO: make torrentInfo immutable, save separately as torrentSummary.info
+    // For now, check whether torrentSummary.files has already been set:
+    const hasDetailedFileInfo = torrentSummary.files && torrentSummary.files[0].path
+    if (!hasDetailedFileInfo) {
+      torrentSummary.files = torrentInfo.files
+    }
+    if (!torrentSummary.selections) {
+      torrentSummary.selections = torrentSummary.files.map((x) => true)
+    }
+    dispatch('update')
+
+    // Save the .torrent file, if it hasn't been saved already
+    if (!torrentSummary.torrentFileName) ipcRenderer.send('wt-save-torrent-file', torrentKey)
+
+    // Auto-generate a poster image, if it hasn't been generated already
+    if (!torrentSummary.posterFileName) ipcRenderer.send('wt-generate-torrent-poster', torrentKey)
+  }
+
+  torrentDone (torrentKey, torrentInfo) {
+    // Update the torrent summary
+    const torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.status = 'seeding'
+
+    // Notify the user that a torrent finished, but only if we actually DL'd at least part of it.
+    // Don't notify if we merely finished verifying data files that were already on disk.
+    if (torrentInfo.bytesReceived > 0) {
+      if (!this.state.window.isFocused) {
+        this.state.dock.badge += 1
+      }
+      showDoneNotification(torrentSummary)
+      ipcRenderer.send('downloadFinished', getTorrentPath(torrentSummary))
+    }
+
+    dispatch('update')
+  }
+
+  torrentProgress (progressInfo) {
+    // Overall progress across all active torrents, 0 to 1, or -1 to hide the progress bar
+    // Hide progress bar when client has no torrents, or progress is 100%
+    const progress = (!progressInfo.hasActiveTorrents || progressInfo.progress === 1)
+      ? -1
+      : progressInfo.progress
+
+    // Show progress bar under the WebTorrent taskbar icon, on OSX
+    this.state.dock.progress = progress
+
+    // Update progress for each individual torrent
+    progressInfo.torrents.forEach((p) => {
+      const torrentSummary = this.getTorrentSummary(p.torrentKey)
+      if (!torrentSummary) {
+        console.log('warning: got progress for missing torrent %s', p.torrentKey)
+        return
+      }
+      torrentSummary.progress = p
+    })
+
+    // TODO: Find an efficient way to re-enable this line, which allows subtitle
+    //       files which are completed after a video starts to play to be added
+    //       dynamically to the list of subtitles.
+    // checkForSubtitles()
+  }
+
+  torrentFileModtimes (torrentKey, fileModtimes) {
+    const torrentSummary = this.getTorrentSummary(torrentKey)
+    if (!torrentSummary) throw new Error('Not saving modtimes for deleted torrent ' + torrentKey)
+    torrentSummary.fileModtimes = fileModtimes
+    dispatch('stateSave')
+  }
+
+  torrentFileSaved (torrentKey, torrentFileName) {
+    console.log('torrent file saved %s: %s', torrentKey, torrentFileName)
+    const torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.torrentFileName = torrentFileName
+    dispatch('stateSave')
+  }
+
+  torrentPosterSaved (torrentKey, posterFileName) {
+    const torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.posterFileName = posterFileName
+    dispatch('stateSave')
+  }
+
+  torrentAudioMetadata (infoHash, index, info) {
+    const torrentSummary = this.getTorrentSummary(infoHash)
+    const fileSummary = torrentSummary.files[index]
+    fileSummary.audioInfo = info
+    dispatch('update')
+  }
+
+  torrentServerRunning (serverInfo) {
+    this.state.server = serverInfo
+  }
+
+  // Gets a torrent summary {name, infoHash, status} from state.saved.torrents
+  // Returns undefined if we don't know that infoHash
+  getTorrentSummary (torrentKey) {
+    return TorrentSummary.getByKey(this.state, torrentKey)
+  }
+}
+
+function getTorrentPath (torrentSummary) {
+  let itemPath = TorrentSummary.getFileOrFolder(torrentSummary)
+  if (torrentSummary.files.length > 1) {
+    itemPath = path.dirname(itemPath)
+  }
+  return itemPath
+}
+
+function showDoneNotification (torrent) {
+  const notif = new window.Notification('Download Complete', {
+    body: torrent.name,
+    silent: true
+  })
+
+  notif.onclick = function () {
+    ipcRenderer.send('show')
+  }
+
+  // Only play notification sound if player is inactive
+  if (this.state.playing.isPaused) sound.play('DONE')
+}

src/renderer/controllers/torrent-list-controller.js

@@ -0,0 +1,339 @@
+const fs = require('fs')
+const path = require('path')
+const electron = require('electron')
+
+const {dispatch} = require('../lib/dispatcher')
+const {TorrentKeyNotFoundError} = require('../lib/errors')
+const sound = require('../lib/sound')
+const TorrentSummary = require('../lib/torrent-summary')
+
+const ipcRenderer = electron.ipcRenderer
+
+const instantIoRegex = /^(https:\/\/)?instant\.io\/#/
+
+// Controls the torrent list: creating, adding, deleting, & manipulating torrents
+module.exports = class TorrentListController {
+  constructor (state) {
+    this.state = state
+  }
+
+  // Adds a torrent to the list, starts downloading/seeding.
+  // TorrentID can be a magnet URI, infohash, or torrent file: https://git.io/vik9M
+  addTorrent (torrentId) {
+    if (torrentId.path) {
+      // Use path string instead of W3C File object
+      torrentId = torrentId.path
+    }
+
+    // Trim extra spaces off pasted magnet links
+    if (typeof torrentId === 'string') {
+      torrentId = torrentId.trim()
+    }
+
+    // Allow a instant.io link to be pasted
+    if (typeof torrentId === 'string' && instantIoRegex.test(torrentId)) {
+      torrentId = torrentId.slice(torrentId.indexOf('#') + 1)
+    }
+
+    const torrentKey = this.state.nextTorrentKey++
+    const path = this.state.saved.prefs.downloadPath
+
+    ipcRenderer.send('wt-start-torrenting', torrentKey, torrentId, path)
+
+    dispatch('backToList')
+  }
+
+  // Shows the Create Torrent page with options to seed a given file or folder
+  showCreateTorrent (files) {
+    // You can only create torrents from the home screen.
+    if (this.state.location.url() !== 'home') {
+      return dispatch('error', 'Please go back to the torrent list before creating a new torrent.')
+    }
+
+    // Files will either be an array of file objects, which we can send directly
+    // to the create-torrent screen
+    if (files.length === 0 || typeof files[0] !== 'string') {
+      this.state.location.go({
+        url: 'create-torrent',
+        files: files,
+        setup: (cb) => {
+          this.state.window.title = 'Create New Torrent'
+          cb(null)
+        }
+      })
+      return
+    }
+
+    // ... or it will be an array of mixed file and folder paths. We have to walk
+    // through all the folders and find the files
+    findFilesRecursive(files, (allFiles) => this.showCreateTorrent(allFiles))
+  }
+
+  // Creates a new torrent and start seeeding
+  createTorrent (options) {
+    const state = this.state
+    const torrentKey = state.nextTorrentKey++
+    ipcRenderer.send('wt-create-torrent', torrentKey, options)
+    state.location.cancel()
+  }
+
+  // Starts downloading and/or seeding a given torrentSummary.
+  startTorrentingSummary (torrentKey) {
+    const s = TorrentSummary.getByKey(this.state, torrentKey)
+    if (!s) throw new TorrentKeyNotFoundError(torrentKey)
+
+    // New torrent: give it a path
+    if (!s.path) {
+      // Use Downloads folder by default
+      s.path = this.state.saved.prefs.downloadPath
+      return start()
+    }
+
+    const fileOrFolder = TorrentSummary.getFileOrFolder(s)
+
+    // New torrent: metadata not yet received
+    if (!fileOrFolder) return start()
+
+    // Existing torrent: check that the path is still there
+    fs.stat(fileOrFolder, function (err) {
+      if (err) {
+        s.error = 'path-missing'
+        dispatch('backToList')
+        return
+      }
+      start()
+    })
+
+    function start () {
+      ipcRenderer.send('wt-start-torrenting',
+        s.torrentKey,
+        TorrentSummary.getTorrentId(s),
+        s.path,
+        s.fileModtimes,
+        s.selections)
+    }
+  }
+
+  // TODO: use torrentKey, not infoHash
+  toggleTorrent (infoHash) {
+    const torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    if (torrentSummary.status === 'paused') {
+      torrentSummary.status = 'new'
+      this.startTorrentingSummary(torrentSummary.torrentKey)
+      sound.play('ENABLE')
+    } else {
+      torrentSummary.status = 'paused'
+      ipcRenderer.send('wt-stop-torrenting', torrentSummary.infoHash)
+      sound.play('DISABLE')
+    }
+  }
+
+  pauseAllTorrents () {
+    this.state.saved.torrents.forEach((torrentSummary) => {
+      if (torrentSummary.status === 'downloading' ||
+          torrentSummary.status === 'seeding') {
+        torrentSummary.status = 'paused'
+        ipcRenderer.send('wt-stop-torrenting', torrentSummary.infoHash)
+      }
+    })
+    sound.play('DISABLE')
+  }
+
+  resumeAllTorrents () {
+    this.state.saved.torrents.forEach((torrentSummary) => {
+      if (torrentSummary.status === 'paused') {
+        torrentSummary.status = 'downloading'
+        this.startTorrentingSummary(torrentSummary.torrentKey)
+      }
+    })
+    sound.play('ENABLE')
+  }
+
+  toggleTorrentFile (infoHash, index) {
+    const torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    torrentSummary.selections[index] = !torrentSummary.selections[index]
+
+    // Let the WebTorrent process know to start or stop fetching that file
+    if (torrentSummary.status !== 'paused') {
+      ipcRenderer.send('wt-select-files', infoHash, torrentSummary.selections)
+    }
+  }
+
+  confirmDeleteTorrent (infoHash, deleteData) {
+    this.state.modal = {
+      id: 'remove-torrent-modal',
+      infoHash,
+      deleteData
+    }
+  }
+
+  // TODO: use torrentKey, not infoHash
+  deleteTorrent (infoHash, deleteData) {
+    ipcRenderer.send('wt-stop-torrenting', infoHash)
+
+    const index = this.state.saved.torrents.findIndex((x) => x.infoHash === infoHash)
+
+    if (index > -1) {
+      const summary = this.state.saved.torrents[index]
+
+      // remove torrent and poster file
+      deleteFile(TorrentSummary.getTorrentPath(summary))
+      deleteFile(TorrentSummary.getPosterPath(summary))
+
+      // optionally delete the torrent data
+      if (deleteData) moveItemToTrash(summary)
+
+      // remove torrent from saved list
+      this.state.saved.torrents.splice(index, 1)
+      dispatch('stateSave')
+    }
+
+    // prevent user from going forward to a deleted torrent
+    this.state.location.clearForward('player')
+    sound.play('DELETE')
+  }
+
+  toggleSelectTorrent (infoHash) {
+    if (this.state.selectedInfoHash === infoHash) {
+      this.state.selectedInfoHash = null
+    } else {
+      this.state.selectedInfoHash = infoHash
+    }
+  }
+
+  openTorrentContextMenu (infoHash) {
+    const torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    const menu = new electron.remote.Menu()
+
+    menu.append(new electron.remote.MenuItem({
+      label: 'Remove From List',
+      click: () => dispatch('confirmDeleteTorrent', torrentSummary.infoHash, false)
+    }))
+
+    menu.append(new electron.remote.MenuItem({
+      label: 'Remove Data File',
+      click: () => dispatch('confirmDeleteTorrent', torrentSummary.infoHash, true)
+    }))
+
+    menu.append(new electron.remote.MenuItem({
+      type: 'separator'
+    }))
+
+    if (torrentSummary.files) {
+      menu.append(new electron.remote.MenuItem({
+        label: process.platform === 'darwin' ? 'Show in Finder' : 'Show in Folder',
+        click: () => showItemInFolder(torrentSummary)
+      }))
+      menu.append(new electron.remote.MenuItem({
+        type: 'separator'
+      }))
+    }
+
+    menu.append(new electron.remote.MenuItem({
+      label: 'Copy Magnet Link to Clipboard',
+      click: () => electron.clipboard.writeText(torrentSummary.magnetURI)
+    }))
+
+    menu.append(new electron.remote.MenuItem({
+      label: 'Copy Instant.io Link to Clipboard',
+      click: () => electron.clipboard.writeText(`https://instant.io/#${torrentSummary.infoHash}`)
+    }))
+
+    menu.append(new electron.remote.MenuItem({
+      label: 'Save Torrent File As...',
+      click: () => dispatch('saveTorrentFileAs', torrentSummary.torrentKey),
+      enabled: torrentSummary.torrentFileName != null
+    }))
+
+    menu.popup(electron.remote.getCurrentWindow())
+  }
+
+  // Takes a torrentSummary or torrentKey
+  // Shows a Save File dialog, then saves the .torrent file wherever the user requests
+  saveTorrentFileAs (torrentKey) {
+    const torrentSummary = TorrentSummary.getByKey(this.state, torrentKey)
+    if (!torrentSummary) throw new Error('Missing torrentKey: ' + torrentKey)
+    const downloadPath = this.state.saved.prefs.downloadPath
+    const newFileName = path.parse(torrentSummary.name).name + '.torrent'
+    const win = electron.remote.getCurrentWindow()
+    const opts = {
+      title: 'Save Torrent File',
+      defaultPath: path.join(downloadPath, newFileName),
+      filters: [
+        { name: 'Torrent Files', extensions: ['torrent'] },
+        { name: 'All Files', extensions: ['*'] }
+      ]
+    }
+
+    electron.remote.dialog.showSaveDialog(win, opts, function (savePath) {
+      console.log('Saving torrent ' + torrentKey + ' to ' + savePath)
+      if (!savePath) return // They clicked Cancel
+      const torrentPath = TorrentSummary.getTorrentPath(torrentSummary)
+      fs.readFile(torrentPath, function (err, torrentFile) {
+        if (err) return dispatch('error', err)
+        fs.writeFile(savePath, torrentFile, function (err) {
+          if (err) return dispatch('error', err)
+        })
+      })
+    })
+  }
+}
+
+// Recursively finds {name, path, size} for all files in a folder
+// Calls `cb` on success, calls `onError` on failure
+function findFilesRecursive (paths, cb) {
+  if (paths.length > 1) {
+    let numComplete = 0
+    let ret = []
+    paths.forEach(function (path) {
+      findFilesRecursive([path], function (fileObjs) {
+        ret.push(...fileObjs)
+        if (++numComplete === paths.length) {
+          ret.sort((a, b) => a.path < b.path ? -1 : a.path > b.path)
+          cb(ret)
+        }
+      })
+    })
+    return
+  }
+
+  const fileOrFolder = paths[0]
+  fs.stat(fileOrFolder, function (err, stat) {
+    if (err) return dispatch('error', err)
+
+    // Files: return name, path, and size
+    if (!stat.isDirectory()) {
+      const filePath = fileOrFolder
+      return cb([{
+        name: path.basename(filePath),
+        path: filePath,
+        size: stat.size
+      }])
+    }
+
+    // Folders: recurse, make a list of all the files
+    const folderPath = fileOrFolder
+    fs.readdir(folderPath, function (err, fileNames) {
+      if (err) return dispatch('error', err)
+      const paths = fileNames.map((fileName) => path.join(folderPath, fileName))
+      findFilesRecursive(paths, cb)
+    })
+  })
+}
+
+function deleteFile (path) {
+  if (!path) return
+  fs.unlink(path, function (err) {
+    if (err) dispatch('error', err)
+  })
+}
+
+// Delete all files in a torrent
+function moveItemToTrash (torrentSummary) {
+  const filePath = TorrentSummary.getFileOrFolder(torrentSummary)
+  if (filePath) ipcRenderer.send('moveItemToTrash', filePath)
+}
+
+function showItemInFolder (torrentSummary) {
+  ipcRenderer.send('showItemInFolder', TorrentSummary.getFileOrFolder(torrentSummary))
+}

src/renderer/controllers/update-controller.js

@@ -0,0 +1,26 @@
+const {dispatch} = require('../lib/dispatcher')
+
+// Controls the UI checking for new versions of the app, prompting install
+module.exports = class UpdateController {
+  constructor (state) {
+    this.state = state
+  }
+
+  // Shows a modal saying that we have an update
+  updateAvailable (version) {
+    const skipped = this.state.saved.skippedVersions
+    if (skipped && skipped.includes(version)) {
+      console.log('new version skipped by user: v' + version)
+      return
+    }
+    this.state.modal = { id: 'update-available-modal', version: version }
+  }
+
+  // Don't show the modal again until the next version
+  skipVersion (version) {
+    let skipped = this.state.saved.skippedVersions
+    if (!skipped) skipped = this.state.saved.skippedVersions = []
+    skipped.push(version)
+    dispatch('stateSave')
+  }
+}

src/renderer/lib/cast.js

@@ -0,0 +1,497 @@
+// The Cast module talks to Airplay and Chromecast
+// * Modifies state when things change
+// * Starts and stops casting, provides remote video controls
+module.exports = {
+  init,
+  toggleMenu,
+  selectDevice,
+  stop,
+  play,
+  pause,
+  seek,
+  setVolume,
+  setRate
+}
+
+const config = require('../../config')
+const {CastingError} = require('./errors')
+
+// Lazy load these for a ~300ms improvement in startup time
+let airplayer, chromecasts, dlnacasts
+
+// App state. Cast modifies state.playing and state.errors in response to events
+let state
+
+// Callback to notify module users when state has changed
+let update
+
+// setInterval() for updating cast status
+let statusInterval = null
+
+// Start looking for cast devices on the local network
+function init (appState, callback) {
+  state = appState
+  update = callback
+
+  // Don't actually cast during integration tests
+  // (Otherwise you'd need a physical Chromecast + AppleTV + DLNA TV to run them.)
+  if (config.IS_TEST) {
+    state.devices.chromecast = testPlayer('chromecast')
+    state.devices.airplay = testPlayer('airplay')
+    state.devices.dlna = testPlayer('dlna')
+    return
+  }
+
+  // Load modules, scan the network for devices
+  airplayer = require('airplayer')()
+  chromecasts = require('chromecasts')()
+  dlnacasts = require('dlnacasts')()
+
+  state.devices.chromecast = chromecastPlayer()
+  state.devices.dlna = dlnaPlayer()
+  state.devices.airplay = airplayPlayer()
+
+  // Listen for devices: Chromecast, DLNA and Airplay
+  chromecasts.on('update', function (device) {
+    // TODO: how do we tell if there are *no longer* any Chromecasts available?
+    // From looking at the code, chromecasts.players only grows, never shrinks
+    state.devices.chromecast.addDevice(device)
+  })
+
+  dlnacasts.on('update', function (device) {
+    state.devices.dlna.addDevice(device)
+  })
+
+  airplayer.on('update', function (device) {
+    state.devices.airplay.addDevice(device)
+  })
+}
+
+// integration test player implementation
+function testPlayer (type) {
+  return {
+    getDevices,
+    open,
+    play,
+    pause,
+    stop,
+    status,
+    seek,
+    volume
+  }
+
+  function getDevices () {
+    return [{name: type + '-1'}, {name: type + '-2'}]
+  }
+
+  function open () {}
+  function play () {}
+  function pause () {}
+  function stop () {}
+  function status () {}
+  function seek () {}
+  function volume () {}
+}
+
+// chromecast player implementation
+function chromecastPlayer () {
+  const ret = {
+    device: null,
+    addDevice,
+    getDevices,
+    open,
+    play,
+    pause,
+    stop,
+    status,
+    seek,
+    volume
+  }
+  return ret
+
+  function getDevices () {
+    return chromecasts.players
+  }
+
+  function addDevice (device) {
+    device.on('error', function (err) {
+      if (device !== ret.device) return
+      state.playing.location = 'local'
+      state.errors.push({
+        time: new Date().getTime(),
+        message: 'Could not connect to Chromecast. ' + err.message
+      })
+      update()
+    })
+    device.on('disconnect', function () {
+      if (device !== ret.device) return
+      state.playing.location = 'local'
+      update()
+    })
+  }
+
+  function open () {
+    const torrentSummary = state.saved.torrents.find((x) => x.infoHash === state.playing.infoHash)
+    ret.device.play(state.server.networkURL + '/' + state.playing.fileIndex, {
+      type: 'video/mp4',
+      title: config.APP_NAME + ' - ' + torrentSummary.name
+    }, function (err) {
+      if (err) {
+        state.playing.location = 'local'
+        state.errors.push({
+          time: new Date().getTime(),
+          message: 'Could not connect to Chromecast. ' + err.message
+        })
+      } else {
+        state.playing.location = 'chromecast'
+      }
+      update()
+    })
+  }
+
+  function play (callback) {
+    ret.device.play(null, null, callback)
+  }
+
+  function pause (callback) {
+    ret.device.pause(callback)
+  }
+
+  function stop (callback) {
+    ret.device.stop(callback)
+  }
+
+  function status () {
+    ret.device.status(handleStatus)
+  }
+
+  function seek (time, callback) {
+    ret.device.seek(time, callback)
+  }
+
+  function volume (volume, callback) {
+    ret.device.volume(volume, callback)
+  }
+}
+
+// airplay player implementation
+function airplayPlayer () {
+  const ret = {
+    device: null,
+    addDevice,
+    getDevices,
+    open,
+    play,
+    pause,
+    stop,
+    status,
+    seek,
+    volume
+  }
+  return ret
+
+  function addDevice (player) {
+    player.on('event', function (event) {
+      switch (event.state) {
+        case 'loading':
+          break
+        case 'playing':
+          state.playing.isPaused = false
+          break
+        case 'paused':
+          state.playing.isPaused = true
+          break
+        case 'stopped':
+          break
+      }
+      update()
+    })
+  }
+
+  function getDevices () {
+    return airplayer.players
+  }
+
+  function open () {
+    ret.device.play(state.server.networkURL + '/' + state.playing.fileIndex, function (err, res) {
+      if (err) {
+        state.playing.location = 'local'
+        state.errors.push({
+          time: new Date().getTime(),
+          message: 'Could not connect to AirPlay. ' + err.message
+        })
+      } else {
+        state.playing.location = 'airplay'
+      }
+      update()
+    })
+  }
+
+  function play (callback) {
+    ret.device.resume(callback)
+  }
+
+  function pause (callback) {
+    ret.device.pause(callback)
+  }
+
+  function stop (callback) {
+    ret.device.stop(callback)
+  }
+
+  function status () {
+    ret.device.playbackInfo(function (err, res, status) {
+      if (err) {
+        state.playing.location = 'local'
+        state.errors.push({
+          time: new Date().getTime(),
+          message: 'Could not connect to AirPlay. ' + err.message
+        })
+      } else {
+        state.playing.isPaused = status.rate === 0
+        state.playing.currentTime = status.position
+        update()
+      }
+    })
+  }
+
+  function seek (time, callback) {
+    ret.device.scrub(time, callback)
+  }
+
+  function volume (volume, callback) {
+    // AirPlay doesn't support volume
+    // TODO: We should just disable the volume slider
+    state.playing.volume = volume
+  }
+}
+
+// DLNA player implementation
+function dlnaPlayer (player) {
+  const ret = {
+    device: null,
+    addDevice,
+    getDevices,
+    open,
+    play,
+    pause,
+    stop,
+    status,
+    seek,
+    volume
+  }
+  return ret
+
+  function getDevices () {
+    return dlnacasts.players
+  }
+
+  function addDevice (device) {
+    device.on('error', function (err) {
+      if (device !== ret.device) return
+      state.playing.location = 'local'
+      state.errors.push({
+        time: new Date().getTime(),
+        message: 'Could not connect to DLNA. ' + err.message
+      })
+      update()
+    })
+    device.on('disconnect', function () {
+      if (device !== ret.device) return
+      state.playing.location = 'local'
+      update()
+    })
+  }
+
+  function open () {
+    const torrentSummary = state.saved.torrents.find((x) => x.infoHash === state.playing.infoHash)
+    ret.device.play(state.server.networkURL + '/' + state.playing.fileIndex, {
+      type: 'video/mp4',
+      title: config.APP_NAME + ' - ' + torrentSummary.name,
+      seek: state.playing.currentTime > 10 ? state.playing.currentTime : 0
+    }, function (err) {
+      if (err) {
+        state.playing.location = 'local'
+        state.errors.push({
+          time: new Date().getTime(),
+          message: 'Could not connect to DLNA. ' + err.message
+        })
+      } else {
+        state.playing.location = 'dlna'
+      }
+      update()
+    })
+  }
+
+  function play (callback) {
+    ret.device.play(null, null, callback)
+  }
+
+  function pause (callback) {
+    ret.device.pause(callback)
+  }
+
+  function stop (callback) {
+    ret.device.stop(callback)
+  }
+
+  function status () {
+    ret.device.status(handleStatus)
+  }
+
+  function seek (time, callback) {
+    ret.device.seek(time, callback)
+  }
+
+  function volume (volume, callback) {
+    ret.device.volume(volume, function (err) {
+      // quick volume update
+      state.playing.volume = volume
+      callback(err)
+    })
+  }
+}
+
+function handleStatus (err, status) {
+  if (err || !status) {
+    return console.log('error getting %s status: %o',
+      state.playing.location,
+      err || 'missing response')
+  }
+  state.playing.isPaused = status.playerState === 'PAUSED'
+  state.playing.currentTime = status.currentTime
+  state.playing.volume = status.volume.muted ? 0 : status.volume.level
+  update()
+}
+
+// Start polling cast device state, whenever we're connected
+function startStatusInterval () {
+  statusInterval = setInterval(function () {
+    const player = getPlayer()
+    if (player) player.status()
+  }, 1000)
+}
+
+/*
+ * Shows the device menu for a given cast type ('chromecast', 'airplay', etc)
+ * The menu lists eg. all Chromecasts detected; the user can click one to cast.
+ * If the menu was already showing for that type, hides the menu.
+ */
+function toggleMenu (location) {
+  // If the menu is already showing, hide it
+  if (state.devices.castMenu && state.devices.castMenu.location === location) {
+    state.devices.castMenu = null
+    return
+  }
+
+  // Never cast to two devices at the same time
+  if (state.playing.location !== 'local') {
+    throw new CastingError(
+      `You can't connect to ${location} when already connected to another device`
+    )
+  }
+
+  // Find all cast devices of the given type
+  const player = getPlayer(location)
+  const devices = player ? player.getDevices() : []
+  if (devices.length === 0) {
+    throw new CastingError(`No ${location} devices available`)
+  }
+
+  // Show a menu
+  state.devices.castMenu = {location, devices}
+}
+
+function selectDevice (index) {
+  const {location, devices} = state.devices.castMenu
+
+  // Start casting
+  const player = getPlayer(location)
+  player.device = devices[index]
+  player.open()
+
+  // Poll the casting device's status every few seconds
+  startStatusInterval()
+
+  // Show the Connecting... screen
+  state.devices.castMenu = null
+  state.playing.castName = devices[index].name
+  state.playing.location = location + '-pending'
+  update()
+}
+
+// Stops casting, move video back to local screen
+function stop () {
+  const player = getPlayer()
+  if (player) {
+    player.stop(function () {
+      player.device = null
+      stoppedCasting()
+    })
+    clearInterval(statusInterval)
+  } else {
+    stoppedCasting()
+  }
+}
+
+function stoppedCasting () {
+  state.playing.location = 'local'
+  state.playing.jumpToTime = Number.isFinite(state.playing.currentTime)
+    ? state.playing.currentTime
+    : 0
+  update()
+}
+
+function getPlayer (location) {
+  if (location) {
+    return state.devices[location]
+  } else if (state.playing.location === 'chromecast') {
+    return state.devices.chromecast
+  } else if (state.playing.location === 'airplay') {
+    return state.devices.airplay
+  } else if (state.playing.location === 'dlna') {
+    return state.devices.dlna
+  } else {
+    return null
+  }
+}
+
+function play () {
+  const player = getPlayer()
+  if (player) player.play(castCallback)
+}
+
+function pause () {
+  const player = getPlayer()
+  if (player) player.pause(castCallback)
+}
+
+function setRate (rate) {
+  let player
+  let result = true
+  if (state.playing.location === 'chromecast') {
+    // TODO find how to control playback rate on chromecast
+    castCallback()
+    result = false
+  } else if (state.playing.location === 'airplay') {
+    player = state.devices.airplay
+    player.rate(rate, castCallback)
+  } else {
+    result = false
+  }
+  return result
+}
+
+function seek (time) {
+  const player = getPlayer()
+  if (player) player.seek(time, castCallback)
+}
+
+function setVolume (volume) {
+  const player = getPlayer()
+  if (player) player.volume(volume, castCallback)
+}
+
+function castCallback () {
+  console.log('%s callback: %o', state.playing.location, arguments)
+}

src/renderer/lib/dispatcher.js

@@ -0,0 +1,39 @@
+module.exports = {
+  dispatch,
+  dispatcher,
+  setDispatch
+}
+
+const dispatchers = {}
+let _dispatch = function () {}
+
+function setDispatch (dispatch) {
+  _dispatch = dispatch
+}
+
+function dispatch (...args) {
+  _dispatch(...args)
+}
+
+// Most DOM event handlers are trivial functions like `() => dispatch(<args>)`.
+// For these, `dispatcher(<args>)` is preferred because it memoizes the handler
+// function. This prevents React from updating the listener functions on
+// each update().
+function dispatcher (...args) {
+  const str = JSON.stringify(args)
+  let handler = dispatchers[str]
+  if (!handler) {
+    handler = dispatchers[str] = function (e) {
+      // Do not propagate click to elements below the button
+      e.stopPropagation()
+
+      if (e.currentTarget.classList.contains('disabled')) {
+        // Ignore clicks on disabled elements
+        return
+      }
+
+      dispatch(...args)
+    }
+  }
+  return handler
+}

src/renderer/lib/errors.js

@@ -0,0 +1,41 @@
+const ExtendableError = require('es6-error')
+
+/* Generic errors */
+
+class CastingError extends ExtendableError {}
+class PlaybackError extends ExtendableError {}
+class SoundError extends ExtendableError {}
+class TorrentError extends ExtendableError {}
+
+/* Playback */
+
+class UnplayableTorrentError extends PlaybackError {
+  constructor () { super('Can\'t play any files in torrent') }
+}
+
+class UnplayableFileError extends PlaybackError {
+  constructor () { super('Can\'t play that file') }
+}
+
+/* Sound */
+
+class InvalidSoundNameError extends SoundError {
+  constructor (name) { super(`Invalid sound name: ${name}`) }
+}
+
+/* Torrent */
+
+class TorrentKeyNotFoundError extends TorrentError {
+  constructor (torrentKey) { super(`Can't resolve torrent key ${torrentKey}`) }
+}
+
+module.exports = {
+  CastingError,
+  PlaybackError,
+  SoundError,
+  TorrentError,
+  UnplayableTorrentError,
+  UnplayableFileError,
+  InvalidSoundNameError,
+  TorrentKeyNotFoundError
+}

src/renderer/lib/migrations.js

@@ -0,0 +1,208 @@
+/* eslint-disable camelcase */
+
+module.exports = {
+  run
+}
+
+const fs = require('fs')
+const path = require('path')
+const semver = require('semver')
+
+const config = require('../../config')
+
+// Change `state.saved` (which will be saved back to config.json on exit) as
+// needed, for example to deal with config.json format changes across versions
+function run (state) {
+  // Replace '{ version: 1 }' with app version (semver)
+  if (!semver.valid(state.saved.version)) {
+    state.saved.version = '0.0.0' // Pre-0.7.0 version, so run all migrations
+  }
+
+  const version = state.saved.version
+  const saved = state.saved
+
+  if (semver.lt(version, '0.7.0')) migrate_0_7_0(saved)
+  if (semver.lt(version, '0.7.2')) migrate_0_7_2(saved)
+  if (semver.lt(version, '0.11.0')) migrate_0_11_0(saved)
+  if (semver.lt(version, '0.12.0')) migrate_0_12_0(saved)
+  if (semver.lt(version, '0.14.0')) migrate_0_14_0(saved)
+  if (semver.lt(version, '0.17.0')) migrate_0_17_0(saved)
+  if (semver.lt(version, '0.17.2')) migrate_0_17_2(saved)
+
+  // Config is now on the new version
+  state.saved.version = config.APP_VERSION
+}
+
+function migrate_0_7_0 (saved) {
+  const cpFile = require('cp-file')
+  const path = require('path')
+
+  saved.torrents.forEach(function (ts) {
+    const infoHash = ts.infoHash
+
+    // Replace torrentPath with torrentFileName
+    // There are a number of cases to handle here:
+    // * Originally we used absolute paths
+    // * Then, relative paths for the default torrents, eg '../static/sintel.torrent'
+    // * Then, paths computed at runtime for default torrents, eg 'sintel.torrent'
+    // * Finally, now we're getting rid of torrentPath altogether
+    let src, dst
+    if (ts.torrentPath) {
+      if (path.isAbsolute(ts.torrentPath) || ts.torrentPath.startsWith('..')) {
+        src = ts.torrentPath
+      } else {
+        src = path.join(config.STATIC_PATH, ts.torrentPath)
+      }
+      dst = path.join(config.TORRENT_PATH, infoHash + '.torrent')
+      // Synchronous FS calls aren't ideal, but probably OK in a migration
+      // that only runs once
+      if (src !== dst) cpFile.sync(src, dst)
+
+      delete ts.torrentPath
+      ts.torrentFileName = infoHash + '.torrent'
+    }
+
+    // Replace posterURL with posterFileName
+    if (ts.posterURL) {
+      const extension = path.extname(ts.posterURL)
+      src = path.isAbsolute(ts.posterURL)
+        ? ts.posterURL
+        : path.join(config.STATIC_PATH, ts.posterURL)
+      dst = path.join(config.POSTER_PATH, infoHash + extension)
+      // Synchronous FS calls aren't ideal, but probably OK in a migration
+      // that only runs once
+      if (src !== dst) cpFile.sync(src, dst)
+
+      delete ts.posterURL
+      ts.posterFileName = infoHash + extension
+    }
+
+    // Fix exception caused by incorrect file ordering.
+    // https://github.com/feross/webtorrent-desktop/pull/604#issuecomment-222805214
+    delete ts.defaultPlayFileIndex
+    delete ts.files
+    delete ts.selections
+    delete ts.fileModtimes
+  })
+}
+
+function migrate_0_7_2 (saved) {
+  if (saved.prefs == null) {
+    saved.prefs = {
+      downloadPath: config.DEFAULT_DOWNLOAD_PATH
+    }
+  }
+}
+
+function migrate_0_11_0 (saved) {
+  if (saved.prefs.isFileHandler == null) {
+    // The app used to make itself the default torrent file handler automatically
+    saved.prefs.isFileHandler = true
+  }
+}
+
+function migrate_0_12_0 (saved) {
+  const TorrentSummary = require('./torrent-summary')
+
+  if (saved.prefs.openExternalPlayer == null && saved.prefs.playInVlc != null) {
+    saved.prefs.openExternalPlayer = saved.prefs.playInVlc
+  }
+  delete saved.prefs.playInVlc
+
+  // Undo a terrible bug where clicking Play on a default torrent on a fresh
+  // install results in a "path missing" error
+  // See https://github.com/feross/webtorrent-desktop/pull/806
+  const defaultTorrentFiles = [
+    '6a9759bffd5c0af65319979fb7832189f4f3c35d.torrent',
+    '88594aaacbde40ef3e2510c47374ec0aa396c08e.torrent',
+    '6a02592d2bbc069628cd5ed8a54f88ee06ac0ba5.torrent',
+    '02767050e0be2fd4db9a2ad6c12416ac806ed6ed.torrent',
+    '3ba219a8634bf7bae3d848192b2da75ae995589d.torrent'
+  ]
+  saved.torrents.forEach(function (torrentSummary) {
+    if (!defaultTorrentFiles.includes(torrentSummary.torrentFileName)) return
+    const fileOrFolder = TorrentSummary.getFileOrFolder(torrentSummary)
+    if (!fileOrFolder) return
+    try {
+      fs.statSync(fileOrFolder)
+    } catch (err) {
+      // Default torrent with "missing path" error. Clear path.
+      delete torrentSummary.path
+    }
+  })
+}
+
+function migrate_0_14_0 (saved) {
+  saved.torrents.forEach(function (ts) {
+    delete ts.defaultPlayFileIndex
+  })
+}
+
+function migrate_0_17_0 (saved) {
+  // Fix a sad, sad bug that resulted in 100MB+ config.json files
+  saved.torrents.forEach(function (ts) {
+    if (!ts.files) return
+    ts.files.forEach(function (file) {
+      if (!file.audioInfo || !file.audioInfo.picture) return
+      // This contained a Buffer, which 30x'd in size when serialized to JSON
+      delete file.audioInfo.picture
+    })
+  })
+}
+
+function migrate_0_17_2 (saved) {
+  // Remove the trailing dot (.) from the Wired CD torrent name, since
+  // folders/files that end in a trailing dot (.) or space are not deletable from
+  // Windows Explorer. See: https://github.com/feross/webtorrent-desktop/issues/905
+
+  const cpFile = require('cp-file')
+  const rimraf = require('rimraf')
+
+  const OLD_NAME = 'The WIRED CD - Rip. Sample. Mash. Share.'
+  const NEW_NAME = 'The WIRED CD - Rip. Sample. Mash. Share'
+
+  const OLD_HASH = '3ba219a8634bf7bae3d848192b2da75ae995589d'
+  const NEW_HASH = 'a88fda5954e89178c372716a6a78b8180ed4dad3'
+
+  const ts = saved.torrents.find((ts) => {
+    return ts.infoHash === OLD_HASH
+  })
+
+  if (!ts) return // Wired CD torrent does not exist
+
+  // New versions of WebTorrent ship with a fixed torrent file. Let's fix up the
+  // name in existing versions of WebTorrent.
+  ts.name = ts.displayName = NEW_NAME
+  ts.files.forEach((file) => {
+    file.path = file.path.replace(OLD_NAME, NEW_NAME)
+  })
+
+  // Changing the torrent name causes the info hash to change
+  ts.infoHash = NEW_HASH
+  ts.magnetURI = ts.magnetURI.replace(OLD_HASH, NEW_HASH)
+
+  try {
+    fs.renameSync(
+      path.join(config.POSTER_PATH, ts.posterFileName),
+      path.join(config.POSTER_PATH, NEW_HASH + '.jpg')
+    )
+  } catch (err) {}
+  ts.posterFileName = NEW_HASH + '.jpg'
+
+  rimraf.sync(path.join(config.TORRENT_PATH, ts.torrentFileName))
+  cpFile.sync(
+    path.join(config.STATIC_PATH, 'wiredCd.torrent'),
+    path.join(config.TORRENT_PATH, NEW_HASH + '.torrent')
+  )
+  ts.torrentFileName = NEW_HASH + '.torrent'
+
+  if (ts.path) {
+    // If torrent folder already exists on disk, try to rename it
+    try {
+      fs.renameSync(
+        path.join(ts.path, OLD_NAME),
+        path.join(ts.path, NEW_NAME)
+      )
+    } catch (err) {}
+  }
+}

src/renderer/lib/playlist.js

@@ -0,0 +1,87 @@
+module.exports = {
+  hasNext,
+  getNextIndex,
+  hasPrevious,
+  getPreviousIndex,
+  getCurrentLocalURL
+}
+
+const TorrentSummary = require('./torrent-summary')
+const TorrentPlayer = require('./torrent-player')
+
+const cache = {
+  infoHash: null,
+  previousIndex: null,
+  currentIndex: null,
+  nextIndex: null
+}
+
+function hasNext (state) {
+  updateCache(state)
+  return cache.nextIndex !== null
+}
+
+function getNextIndex (state) {
+  updateCache(state)
+  return cache.nextIndex
+}
+
+function hasPrevious (state) {
+  updateCache(state)
+  return cache.previousIndex !== null
+}
+
+function getPreviousIndex (state) {
+  updateCache(state)
+  return cache.previousIndex
+}
+
+function getCurrentLocalURL (state) {
+  return state.server
+    ? state.server.localURL + '/' + state.playing.fileIndex
+    : ''
+}
+
+function updateCache (state) {
+  const infoHash = state.playing.infoHash
+  const fileIndex = state.playing.fileIndex
+
+  if (infoHash === cache.infoHash) {
+    switch (fileIndex) {
+      case cache.currentIndex:
+        return
+      case cache.nextIndex:
+        cache.previousIndex = cache.currentIndex
+        cache.currentIndex = fileIndex
+        cache.nextIndex = findNextIndex(state)
+        return
+      case cache.previousIndex:
+        cache.previousIndex = findPreviousIndex(state)
+        cache.nextIndex = cache.currentIndex
+        cache.currentIndex = fileIndex
+        return
+    }
+  } else {
+    cache.infoHash = infoHash
+  }
+
+  cache.previousIndex = findPreviousIndex(state)
+  cache.currentIndex = fileIndex
+  cache.nextIndex = findNextIndex(state)
+}
+
+function findPreviousIndex (state) {
+  const files = TorrentSummary.getByKey(state, state.playing.infoHash).files
+  for (let i = state.playing.fileIndex - 1; i >= 0; i--) {
+    if (TorrentPlayer.isPlayable(files[i])) return i
+  }
+  return null
+}
+
+function findNextIndex (state) {
+  const files = TorrentSummary.getByKey(state, state.playing.infoHash).files
+  for (let i = state.playing.fileIndex + 1; i < files.length; i++) {
+    if (TorrentPlayer.isPlayable(files[i])) return i
+  }
+  return null
+}

src/renderer/lib/sound.js

@@ -0,0 +1,62 @@
+module.exports = {
+  play
+}
+
+const config = require('../../config')
+const {InvalidSoundNameError} = require('./errors')
+const path = require('path')
+
+const VOLUME = 0.25
+
+/* Cache of Audio elements, for instant playback */
+const cache = {}
+
+const sounds = {
+  ADD: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'add.wav'),
+    volume: VOLUME
+  },
+  DELETE: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'delete.wav'),
+    volume: VOLUME * 0.5
+  },
+  DISABLE: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'disable.wav'),
+    volume: VOLUME * 0.5
+  },
+  DONE: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'done.wav'),
+    volume: VOLUME
+  },
+  ENABLE: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'enable.wav'),
+    volume: VOLUME * 0.5
+  },
+  ERROR: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'error.wav'),
+    volume: VOLUME
+  },
+  PLAY: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'play.wav'),
+    volume: VOLUME
+  },
+  STARTUP: {
+    url: 'file://' + path.join(config.STATIC_PATH, 'sound', 'startup.wav'),
+    volume: VOLUME
+  }
+}
+
+function play (name) {
+  let audio = cache[name]
+  if (!audio) {
+    const sound = sounds[name]
+    if (!sound) {
+      throw new InvalidSoundNameError(name)
+    }
+    audio = cache[name] = new window.Audio()
+    audio.volume = sound.volume
+    audio.src = sound.url
+  }
+  audio.currentTime = 0
+  audio.play()
+}

src/renderer/lib/state.js

@@ -0,0 +1,253 @@
+const appConfig = require('application-config')('WebTorrent')
+const path = require('path')
+const {EventEmitter} = require('events')
+
+const config = require('../../config')
+
+const SAVE_DEBOUNCE_INTERVAL = 1000
+
+appConfig.filePath = path.join(config.CONFIG_PATH, 'config.json')
+
+const State = module.exports = Object.assign(new EventEmitter(), {
+  getDefaultPlayState,
+  load,
+  // state.save() calls are rate-limited. Use state.saveImmediate() to skip limit.
+  save: function () {
+    // Perf optimization: Lazy-require debounce (and it's dependencies)
+    const debounce = require('debounce')
+    // After first State.save() invokation, future calls go straight to the
+    // debounced function
+    State.save = debounce(saveImmediate, SAVE_DEBOUNCE_INTERVAL)
+    State.save(...arguments)
+  },
+  saveImmediate
+})
+
+function getDefaultState () {
+  const LocationHistory = require('location-history')
+
+  return {
+    /*
+     * Temporary state disappears once the program exits.
+     * It can contain complex objects like open connections, etc.
+     */
+    client: null, /* the WebTorrent client */
+    server: null, /* local WebTorrent-to-HTTP server */
+    prev: { /* used for state diffing in updateElectron() */
+      title: null,
+      progress: -1,
+      badge: null
+    },
+    location: new LocationHistory(),
+    window: {
+      bounds: null, /* {x, y, width, height } */
+      isFocused: true,
+      isFullScreen: false,
+      title: config.APP_WINDOW_TITLE
+    },
+    selectedInfoHash: null, /* the torrent we've selected to view details. see state.torrents */
+    playing: getDefaultPlayState(), /* the media (audio or video) that we're currently playing */
+    devices: {}, /* playback devices like Chromecast and AppleTV */
+    dock: {
+      badge: 0,
+      progress: 0
+    },
+    modal: null, /* modal popover */
+    errors: [], /* user-facing errors */
+    nextTorrentKey: 1, /* identify torrents for IPC between the main and webtorrent windows */
+
+    /*
+     * Saved state is read from and written to a file every time the app runs.
+     * It should be simple and minimal and must be JSON.
+     * It must never contain absolute paths since we have a portable app.
+     *
+     * Config path:
+     *
+     * Mac                  ~/Library/Application Support/WebTorrent/config.json
+     * Linux (XDG)          $XDG_CONFIG_HOME/WebTorrent/config.json
+     * Linux (Legacy)       ~/.config/WebTorrent/config.json
+     * Windows (> Vista)    %LOCALAPPDATA%/WebTorrent/config.json
+     * Windows (XP, 2000)   %USERPROFILE%/Local Settings/Application Data/WebTorrent/config.json
+     *
+     * Also accessible via `require('application-config')('WebTorrent').filePath`
+     */
+    saved: {},
+
+    /*
+     * Getters, for convenience
+     */
+    getPlayingTorrentSummary,
+    getPlayingFileSummary,
+    getExternalPlayerName,
+    shouldHidePlayerControls
+  }
+}
+
+/* Whenever we stop playing video or audio, here's what we reset state.playing to */
+function getDefaultPlayState () {
+  return {
+    infoHash: null, /* the info hash of the torrent we're playing */
+    fileIndex: null, /* the zero-based index within the torrent */
+    location: 'local', /* 'local', 'chromecast', 'airplay' */
+    type: null, /* 'audio' or 'video', could be 'other' if ever support eg streaming to VLC */
+    currentTime: 0, /* seconds */
+    duration: 1, /* seconds */
+    isReady: false,
+    isPaused: true,
+    isStalled: false,
+    lastTimeUpdate: 0, /* Unix time in ms */
+    mouseStationarySince: 0, /* Unix time in ms */
+    playbackRate: 1,
+    volume: 1,
+    subtitles: {
+      tracks: [], /* subtitle tracks, each {label, language, ...} */
+      selectedIndex: -1, /* current subtitle track */
+      showMenu: false /* popover menu, above the video */
+    },
+    aspectRatio: 0 /* aspect ratio of the video */
+  }
+}
+
+/* If the saved state file doesn't exist yet, here's what we use instead */
+function setupStateSaved (cb) {
+  const cpFile = require('cp-file')
+  const fs = require('fs')
+  const parseTorrent = require('parse-torrent')
+  const parallel = require('run-parallel')
+
+  const saved = {
+    prefs: {
+      downloadPath: config.DEFAULT_DOWNLOAD_PATH,
+      isFileHandler: false,
+      openExternalPlayer: false,
+      externalPlayerPath: null,
+      startup: false
+    },
+    torrents: config.DEFAULT_TORRENTS.map(createTorrentObject),
+    version: config.APP_VERSION /* make sure we can upgrade gracefully later */
+  }
+
+  const tasks = []
+
+  config.DEFAULT_TORRENTS.map(function (t, i) {
+    const infoHash = saved.torrents[i].infoHash
+    tasks.push(function (cb) {
+      cpFile(
+        path.join(config.STATIC_PATH, t.posterFileName),
+        path.join(config.POSTER_PATH, infoHash + path.extname(t.posterFileName))
+      ).then(cb).catch(cb)
+    })
+    tasks.push(function (cb) {
+      cpFile(
+        path.join(config.STATIC_PATH, t.torrentFileName),
+        path.join(config.TORRENT_PATH, infoHash + '.torrent')
+      ).then(cb).catch(cb)
+    })
+  })
+
+  parallel(tasks, function (err) {
+    if (err) return cb(err)
+    cb(null, saved)
+  })
+
+  function createTorrentObject (t) {
+    // TODO: Doing several fs.readFileSync calls during first startup is not ideal
+    const torrent = fs.readFileSync(path.join(config.STATIC_PATH, t.torrentFileName))
+    const parsedTorrent = parseTorrent(torrent)
+
+    return {
+      status: 'paused',
+      infoHash: parsedTorrent.infoHash,
+      name: t.name,
+      displayName: t.name,
+      posterFileName: parsedTorrent.infoHash + path.extname(t.posterFileName),
+      torrentFileName: parsedTorrent.infoHash + '.torrent',
+      magnetURI: parseTorrent.toMagnetURI(parsedTorrent),
+      files: parsedTorrent.files,
+      selections: parsedTorrent.files.map((x) => true),
+      testID: t.testID
+    }
+  }
+}
+
+function getPlayingTorrentSummary () {
+  const infoHash = this.playing.infoHash
+  return this.saved.torrents.find((x) => x.infoHash === infoHash)
+}
+
+function getPlayingFileSummary () {
+  const torrentSummary = this.getPlayingTorrentSummary()
+  if (!torrentSummary) return null
+  return torrentSummary.files[this.playing.fileIndex]
+}
+
+function getExternalPlayerName () {
+  const playerPath = this.saved.prefs.externalPlayerPath
+  if (!playerPath) return 'VLC'
+  return path.basename(playerPath).split('.')[0]
+}
+
+function shouldHidePlayerControls () {
+  return this.location.url() === 'player' &&
+    this.playing.mouseStationarySince !== 0 &&
+    new Date().getTime() - this.playing.mouseStationarySince > 2000 &&
+    !this.playing.mouseInControls &&
+    !this.playing.isPaused &&
+    this.playing.location === 'local' &&
+    this.playing.playbackRate === 1
+}
+
+function load (cb) {
+  appConfig.read(function (err, saved) {
+    if (err || !saved.version) {
+      console.log('Missing config file: Creating new one')
+      setupStateSaved(onSavedState)
+    } else {
+      onSavedState(null, saved)
+    }
+  })
+
+  function onSavedState (err, saved) {
+    if (err) return cb(err)
+    const state = getDefaultState()
+    state.saved = saved
+
+    if (process.type === 'renderer') {
+      // Perf optimization: Save require() calls in the main process
+      const migrations = require('./migrations')
+      migrations.run(state)
+    }
+
+    cb(null, state)
+  }
+}
+
+// Write state.saved to the JSON state file
+function saveImmediate (state, cb) {
+  console.log('Saving state to ' + appConfig.filePath)
+
+  // Clean up, so that we're not saving any pending state
+  const copy = Object.assign({}, state.saved)
+  // Remove torrents pending addition to the list, where we haven't finished
+  // reading the torrent file or file(s) to seed & don't have an infohash
+  copy.torrents = copy.torrents
+    .filter((x) => x.infoHash)
+    .map(function (x) {
+      const torrent = {}
+      for (let key in x) {
+        if (key === 'progress' || key === 'torrentKey') {
+          continue // Don't save progress info or key for the webtorrent process
+        }
+        if (key === 'error') {
+          continue // Don't save error states
+        }
+        torrent[key] = x[key]
+      }
+      return torrent
+    })
+
+  appConfig.write(copy, (err) => {
+    if (err) console.error(err)
+    else State.emit('stateSaved')
+  })
+}

src/renderer/lib/telemetry.js

@@ -0,0 +1,223 @@
+// Collects anonymous usage stats and uncaught errors
+// Reports back so that we can improve WebTorrent Desktop
+module.exports = {
+  init,
+  send,
+  logUncaughtError,
+  logPlayAttempt
+}
+
+const electron = require('electron')
+
+const config = require('../../config')
+
+let telemetry
+
+function init (state) {
+  telemetry = state.saved.telemetry
+
+  // First app run
+  if (!telemetry) {
+    const crypto = require('crypto')
+    telemetry = state.saved.telemetry = {
+      userID: crypto.randomBytes(32).toString('hex') // 256-bit random ID
+    }
+    reset()
+  }
+}
+
+function send (state) {
+  const now = new Date()
+  telemetry.version = config.APP_VERSION
+  telemetry.timestamp = now.toISOString()
+  telemetry.localTime = now.toTimeString()
+  telemetry.screens = getScreenInfo()
+  telemetry.system = getSystemInfo()
+  telemetry.torrentStats = getTorrentStats(state)
+  telemetry.approxNumTorrents = telemetry.torrentStats.approxCount
+
+  if (!config.IS_PRODUCTION) {
+    // Development: telemetry used only for local debugging
+    // Empty uncaught errors, etc at the start of every run
+    return reset()
+  }
+
+  const get = require('simple-get')
+
+  const opts = {
+    url: config.TELEMETRY_URL,
+    body: telemetry,
+    json: true
+  }
+
+  get.post(opts, function (err, res) {
+    if (err) return console.error('Error sending telemetry', err)
+    if (res.statusCode !== 200) {
+      return console.error(`Error sending telemetry, status code: ${res.statusCode}`)
+    }
+    console.log('Sent telemetry')
+    reset()
+  })
+}
+
+function reset () {
+  telemetry.uncaughtErrors = []
+  telemetry.playAttempts = {
+    minVersion: config.APP_VERSION,
+    total: 0,
+    success: 0,
+    error: 0,
+    external: 0,
+    abandoned: 0
+  }
+}
+
+// Track screen resolution
+function getScreenInfo () {
+  return electron.screen.getAllDisplays().map((screen) => ({
+    width: screen.size.width,
+    height: screen.size.height,
+    scaleFactor: screen.scaleFactor
+  }))
+}
+
+// Track basic system info like OS version and amount of RAM
+function getSystemInfo () {
+  const os = require('os')
+  return {
+    osPlatform: process.platform,
+    osRelease: os.type() + ' ' + os.release(),
+    architecture: os.arch(),
+    systemArchitecture: config.OS_SYSARCH,
+    totalMemoryMB: roundPow2(os.totalmem() / (1 << 20)),
+    numCores: os.cpus().length
+  }
+}
+
+// Get stats like the # of torrents currently active, # in list, total size
+function getTorrentStats (state) {
+  const count = state.saved.torrents.length
+  let sizeMB = 0
+  let byStatus = {
+    new: { count: 0, sizeMB: 0 },
+    downloading: { count: 0, sizeMB: 0 },
+    seeding: { count: 0, sizeMB: 0 },
+    paused: { count: 0, sizeMB: 0 }
+  }
+
+  // First, count torrents & total file size
+  for (let i = 0; i < count; i++) {
+    const t = state.saved.torrents[i]
+    const stat = byStatus[t.status]
+    if (!t || !t.files || !stat) continue
+    stat.count++
+    for (let j = 0; j < t.files.length; j++) {
+      const f = t.files[j]
+      if (!f || !f.length) continue
+      const fileSizeMB = f.length / (1 << 20)
+      sizeMB += fileSizeMB
+      stat.sizeMB += fileSizeMB
+    }
+  }
+
+  // Then, round all the counts and sums to the nearest power of 2
+  const ret = roundTorrentStats({count, sizeMB})
+  ret.byStatus = {
+    new: roundTorrentStats(byStatus.new),
+    downloading: roundTorrentStats(byStatus.downloading),
+    seeding: roundTorrentStats(byStatus.seeding),
+    paused: roundTorrentStats(byStatus.paused)
+  }
+  return ret
+}
+
+function roundTorrentStats (stats) {
+  return {
+    approxCount: roundPow2(stats.count),
+    approxSizeMB: roundPow2(stats.sizeMB)
+  }
+}
+
+// Rounds to the nearest power of 2, for privacy and easy bucketing.
+// Rounds 35 to 32, 70 to 64, 5 to 4, 1 to 1, 0 to 0.
+// Supports nonnegative numbers only.
+function roundPow2 (n) {
+  if (n <= 0) return 0
+  // Otherwise, return 1, 2, 4, 8, etc by rounding in log space
+  const log2 = Math.log(n) / Math.log(2)
+  return Math.pow(2, Math.round(log2))
+}
+
+// An uncaught error happened in the main process or in one of the windows
+function logUncaughtError (procName, e) {
+  // Not initialized yet? Ignore.
+  // Hopefully uncaught errors immediately on startup are fixed in dev
+  if (!telemetry) return
+
+  let message
+  let stack = ''
+  if (e == null) {
+    message = 'Unexpected undefined error'
+  } else if (e.error) {
+    // Uncaught Javascript errors (window.onerror), err is an ErrorEvent
+    if (!e.error.message) {
+      message = 'Unexpected ErrorEvent.error: ' + Object.keys(e.error).join(' ')
+    } else {
+      message = e.error.message
+      stack = e.error.stack
+    }
+  } else if (e.message) {
+    // err is either an Error or a plain object {message, stack}
+    message = e.message
+    stack = e.stack
+  } else {
+    // Resource errors (captured element.onerror), err is an Event
+    if (!e.target) {
+      message = 'Unexpected unknown error'
+    } else if (!e.target.error) {
+      message = 'Unexpected resource loading error: ' + getElemString(e.target)
+    } else {
+      message = 'Resource error ' + getElemString(e.target) + ': ' + e.target.error.code
+    }
+  }
+
+  if (typeof stack !== 'string') stack = 'Unexpected stack: ' + stack
+  if (typeof message !== 'string') message = 'Unexpected message: ' + message
+
+  // Remove the first part of each file path in the stack trace.
+  // - Privacy: remove personal info like C:\Users\<full name>
+  // - Aggregation: this lets us find which stacktraces occur often
+  stack = stack.replace(/\(.*app.asar/g, '(...')
+  stack = stack.replace(/at .*app.asar/g, 'at ...')
+
+  // We need to POST the telemetry object, make sure it stays < 100kb
+  if (telemetry.uncaughtErrors.length > 20) return
+  if (message.length > 1000) message = message.substring(0, 1000)
+  if (stack.length > 1000) stack = stack.substring(0, 1000)
+
+  // Log the app version *at the time of the error*
+  const version = config.APP_VERSION
+
+  telemetry.uncaughtErrors.push({process: procName, message, stack, version})
+}
+
+// Turns a DOM element into a string, eg "DIV.my-class.visible"
+function getElemString (elem) {
+  let ret = elem.tagName
+  try {
+    ret += '.' + Array.from(elem.classList).join('.')
+  } catch (err) {}
+  return ret
+}
+
+// The user pressed play. Did it work, display an error,
+// open an external player or did user abandon the attempt?
+function logPlayAttempt (result) {
+  if (!['success', 'error', 'external', 'abandoned'].includes(result)) {
+    return console.error('Unknown play attempt result', result)
+  }
+
+  const attempts = telemetry.playAttempts
+  attempts.total = (attempts.total || 0) + 1
+  attempts[result] = (attempts[result] || 0) + 1
+}

src/renderer/lib/torrent-player.js

@@ -0,0 +1,61 @@
+module.exports = {
+  isPlayable,
+  isVideo,
+  isAudio,
+  isTorrent,
+  isPlayableTorrentSummary
+}
+
+const path = require('path')
+
+// Checks whether a fileSummary or file path is audio/video that we can play,
+// based on the file extension
+function isPlayable (file) {
+  return isVideo(file) || isAudio(file)
+}
+
+// Checks whether a fileSummary or file path is playable video
+function isVideo (file) {
+  return [
+    '.avi',
+    '.m4v',
+    '.mkv',
+    '.mov',
+    '.mp4',
+    '.mpg',
+    '.ogv',
+    '.webm',
+    '.wmv'
+  ].includes(getFileExtension(file))
+}
+
+// Checks whether a fileSummary or file path is playable audio
+function isAudio (file) {
+  return [
+    '.aac',
+    '.ac3',
+    '.mp3',
+    '.ogg',
+    '.wav',
+    '.m4a'
+  ].includes(getFileExtension(file))
+}
+
+// Checks if the argument is either:
+// - a string that's a valid filename ending in .torrent
+// - a file object where obj.name is ends in .torrent
+// - a string that's a magnet link (magnet://...)
+function isTorrent (file) {
+  const isTorrentFile = getFileExtension(file) === '.torrent'
+  const isMagnet = typeof file === 'string' && /^(stream-)?magnet:/.test(file)
+  return isTorrentFile || isMagnet
+}
+
+function getFileExtension (file) {
+  const name = typeof file === 'string' ? file : file.name
+  return path.extname(name).toLowerCase()
+}
+
+function isPlayableTorrentSummary (torrentSummary) {
+  return torrentSummary.files && torrentSummary.files.some(isPlayable)
+}

src/renderer/lib/torrent-poster.js

@@ -1,16 +1,22 @@
 module.exports = torrentPoster
 
-var captureVideoFrame = require('./capture-video-frame')
-var path = require('path')
+const captureFrame = require('capture-frame')
+const path = require('path')
 
 function torrentPoster (torrent, cb) {
-  // First, try to use the largest video file
+  // First, try to use a poster image if available
+  const posterFile = torrent.files.filter(function (file) {
+    return /^poster\.(jpg|png|gif)$/.test(file.name)
+  })[0]
+  if (posterFile) return torrentPosterFromImage(posterFile, torrent, cb)
+
+  // Second, try to use the largest video file
   // Filter out file formats that the <video> tag definitely can't play
-  var videoFile = getLargestFileByExtension(torrent, ['.mp4', '.m4v', '.webm', '.mov', '.mkv'])
+  const videoFile = getLargestFileByExtension(torrent, ['.mp4', '.m4v', '.webm', '.mov', '.mkv'])
   if (videoFile) return torrentPosterFromVideo(videoFile, torrent, cb)
 
-  // Second, try to use the largest image file
-  var imgFile = getLargestFileByExtension(torrent, ['.gif', '.jpg', '.png'])
+  // Third, try to use the largest image file
+  const imgFile = getLargestFileByExtension(torrent, ['.gif', '.jpg', '.jpeg', '.png'])
   if (imgFile) return torrentPosterFromImage(imgFile, torrent, cb)
 
   // TODO: generate a waveform from the largest sound file
@@ -19,8 +25,8 @@ function torrentPoster (torrent, cb) {
 }
 
 function getLargestFileByExtension (torrent, extensions) {
-  var files = torrent.files.filter(function (file) {
-    var extname = path.extname(file.name)
+  const files = torrent.files.filter(function (file) {
+    const extname = path.extname(file.name).toLowerCase()
     return extensions.indexOf(extname) !== -1
   })
   if (files.length === 0) return undefined
@@ -30,15 +36,15 @@ function getLargestFileByExtension (torrent, extensions) {
 }
 
 function torrentPosterFromVideo (file, torrent, cb) {
-  var index = torrent.files.indexOf(file)
+  const index = torrent.files.indexOf(file)
 
-  var server = torrent.createServer(0)
+  const server = torrent.createServer(0)
   server.listen(0, onListening)
 
   function onListening () {
-    var port = server.address().port
-    var url = 'http://localhost:' + port + '/' + index
-    var video = document.createElement('video')
+    const port = server.address().port
+    const url = 'http://localhost:' + port + '/' + index
+    const video = document.createElement('video')
     video.addEventListener('canplay', onCanPlay)
 
     video.volume = 0
@@ -55,7 +61,7 @@ function torrentPosterFromVideo (file, torrent, cb) {
     function onSeeked () {
       video.removeEventListener('seeked', onSeeked)
 
-      var buf = captureVideoFrame(video)
+      const buf = captureFrame(video)
 
       // unload video element
       video.pause()
@@ -64,12 +70,14 @@ function torrentPosterFromVideo (file, torrent, cb) {
 
       server.destroy()
 
+      if (buf.length === 0) return cb(new Error('Generated poster contains no data'))
+
       cb(null, buf, '.jpg')
     }
   }
 }
 
 function torrentPosterFromImage (file, torrent, cb) {
-  var extname = path.extname(file.name)
+  const extname = path.extname(file.name)
   file.getBuffer((err, buf) => cb(err, buf, extname))
 }

src/renderer/lib/torrent-summary.js

@@ -0,0 +1,58 @@
+module.exports = {
+  getPosterPath,
+  getTorrentPath,
+  getByKey,
+  getTorrentId,
+  getFileOrFolder
+}
+
+const path = require('path')
+const config = require('../../config')
+
+// Expects a torrentSummary
+// Returns an absolute path to the torrent file, or null if unavailable
+function getTorrentPath (torrentSummary) {
+  if (!torrentSummary || !torrentSummary.torrentFileName) return null
+  return path.join(config.TORRENT_PATH, torrentSummary.torrentFileName)
+}
+
+// Expects a torrentSummary
+// Returns an absolute path to the poster image, or null if unavailable
+function getPosterPath (torrentSummary) {
+  if (!torrentSummary || !torrentSummary.posterFileName) return null
+  const posterPath = path.join(config.POSTER_PATH, torrentSummary.posterFileName)
+  // Work around a Chrome bug (reproduced in vanilla Chrome, not just Electron):
+  // Backslashes in URLS in CSS cause bizarre string encoding issues
+  return posterPath.replace(/\\/g, '/')
+}
+
+// Expects a torrentSummary
+// Returns a torrentID: filename, magnet URI, or infohash
+function getTorrentId (torrentSummary) {
+  const s = torrentSummary
+  if (s.torrentFileName) { // Load torrent file from disk
+    return getTorrentPath(s)
+  } else { // Load torrent from DHT
+    return s.magnetURI || s.infoHash
+  }
+}
+
+// Expects a torrentKey or infoHash
+// Returns the corresponding torrentSummary, or undefined
+function getByKey (state, torrentKey) {
+  if (!torrentKey) return undefined
+  return state.saved.torrents.find((x) =>
+    x.torrentKey === torrentKey || x.infoHash === torrentKey)
+}
+
+// Returns the path to either the file (in a single-file torrent) or the root
+// folder (in  multi-file torrent)
+// WARNING: assumes that multi-file torrents consist of a SINGLE folder.
+// TODO: make this assumption explicit, enforce it in the `create-torrent`
+// module. Store root folder explicitly to avoid hacky path processing below.
+function getFileOrFolder (torrentSummary) {
+  const ts = torrentSummary
+  if (!ts.path || !ts.files || ts.files.length === 0) return null
+  const dirname = ts.files[0].path.split(path.sep)[0]
+  return path.join(ts.path, dirname)
+}

src/renderer/main.js

@@ -0,0 +1,525 @@
+/**
+ * Perf optimization: Hook into require() to modify how certain modules load:
+ *
+ * - `inline-style-prefixer` (used by `material-ui`) takes ~40ms. It is not
+ *   actually used because auto-prefixing is disabled with
+ *   `darkBaseTheme.userAgent = false`. Return a fake object.
+ */
+let Module = require('module')
+const _require = Module.prototype.require
+Module.prototype.require = function (id) {
+  if (id === 'inline-style-prefixer') return {}
+  return _require.apply(this, arguments)
+}
+
+console.time('init')
+
+const crashReporter = require('../crash-reporter')
+crashReporter.init()
+
+// Perf optimization: Start asynchronously read on config file before all the
+// blocking require() calls below.
+
+const State = require('./lib/state')
+State.load(onState)
+
+const createGetter = require('fn-getter')
+const dragDrop = require('drag-drop')
+const electron = require('electron')
+const fs = require('fs')
+const React = require('react')
+const ReactDOM = require('react-dom')
+
+const config = require('../config')
+const telemetry = require('./lib/telemetry')
+const sound = require('./lib/sound')
+const TorrentPlayer = require('./lib/torrent-player')
+
+// Perf optimization: Needed immediately, so do not lazy load it below
+const TorrentListController = require('./controllers/torrent-list-controller')
+
+// Required by Material UI -- adds `onTouchTap` event
+require('react-tap-event-plugin')()
+
+const App = require('./pages/app')
+
+// Electron apps have two processes: a main process (node) runs first and starts
+// a renderer process (essentially a Chrome window). We're in the renderer process,
+// and this IPC channel receives from and sends messages to the main process
+const ipcRenderer = electron.ipcRenderer
+
+// Yo-yo pattern: state object lives here and percolates down thru all the views.
+// Events come back up from the views via dispatch(...)
+require('./lib/dispatcher').setDispatch(dispatch)
+
+// From dispatch(...), events are sent to one of the controllers
+let controllers = null
+
+// This dependency is the slowest-loading, so we lazy load it
+let Cast = null
+
+// All state lives in state.js. `state.saved` is read from and written to a file.
+// All other state is ephemeral. First we load state.saved then initialize the app.
+let state
+
+// Root React component
+let app
+
+// Called once when the application loads. (Not once per window.)
+// Connects to the torrent networks, sets up the UI and OS integrations like
+// the dock icon and drag+drop.
+function onState (err, _state) {
+  if (err) return onError(err)
+
+  // Make available for easier debugging
+  state = window.state = _state
+  window.dispatch = dispatch
+
+  telemetry.init(state)
+
+  // Log uncaught JS errors
+  window.addEventListener(
+    'error', (e) => telemetry.logUncaughtError('window', e), true /* capture */
+  )
+
+  // Create controllers
+  controllers = {
+    media: createGetter(() => {
+      const MediaController = require('./controllers/media-controller')
+      return new MediaController(state)
+    }),
+    playback: createGetter(() => {
+      const PlaybackController = require('./controllers/playback-controller')
+      return new PlaybackController(state, config, update)
+    }),
+    prefs: createGetter(() => {
+      const PrefsController = require('./controllers/prefs-controller')
+      return new PrefsController(state, config)
+    }),
+    subtitles: createGetter(() => {
+      const SubtitlesController = require('./controllers/subtitles-controller')
+      return new SubtitlesController(state)
+    }),
+    torrent: createGetter(() => {
+      const TorrentController = require('./controllers/torrent-controller')
+      return new TorrentController(state)
+    }),
+    torrentList: createGetter(() => {
+      return new TorrentListController(state)
+    }),
+    update: createGetter(() => {
+      const UpdateController = require('./controllers/update-controller')
+      return new UpdateController(state)
+    })
+  }
+
+  // Add first page to location history
+  state.location.go({
+    url: 'home',
+    setup: (cb) => {
+      state.window.title = config.APP_WINDOW_TITLE
+      cb(null)
+    }
+  })
+
+  // Restart everything we were torrenting last time the app ran
+  resumeTorrents()
+
+  // Initialize ReactDOM
+  app = ReactDOM.render(<App state={state} />, document.querySelector('#body'))
+
+  // Calling update() updates the UI given the current state
+  // Do this at least once a second to give every file in every torrentSummary
+  // a progress bar and to keep the cursor in sync when playing a video
+  setInterval(update, 1000)
+
+  // Listen for messages from the main process
+  setupIpc()
+
+  // Drag and drop files/text to start torrenting or seeding
+  dragDrop('body', {
+    onDrop: onOpen,
+    onDropText: onOpen
+  })
+
+  // ...same thing if you paste a torrent
+  document.addEventListener('paste', onPaste)
+
+  // ...focus and blur. Needed to show correct dock icon text ('badge') in OSX
+  window.addEventListener('focus', onFocus)
+  window.addEventListener('blur', onBlur)
+
+  if (electron.remote.getCurrentWindow().isVisible()) {
+    sound.play('STARTUP')
+  }
+
+  // To keep app startup fast, some code is delayed.
+  window.setTimeout(delayedInit, config.DELAYED_INIT)
+
+  // Done! Ideally we want to get here < 500ms after the user clicks the app
+  console.timeEnd('init')
+}
+
+// Runs a few seconds after the app loads, to avoid slowing down startup time
+function delayedInit () {
+  telemetry.send(state)
+
+  // Send telemetry data every 12 hours, for users who keep the app running
+  // for extended periods of time
+  setInterval(() => telemetry.send(state), 12 * 3600 * 1000)
+
+  // Warn if the download dir is gone, eg b/c an external drive is unplugged
+  checkDownloadPath()
+
+  // ...window visibility state.
+  document.addEventListener('webkitvisibilitychange', onVisibilityChange)
+  onVisibilityChange()
+
+  lazyLoadCast()
+}
+
+// Lazily loads Chromecast and Airplay support
+function lazyLoadCast () {
+  if (!Cast) {
+    Cast = require('./lib/cast')
+    Cast.init(state, update) // Search the local network for Chromecast and Airplays
+  }
+  return Cast
+}
+
+// React loop:
+// 1. update() - recompute the virtual DOM, diff, apply to the real DOM
+// 2. event - might be a click or other DOM event, or something external
+// 3. dispatch - the event handler calls dispatch(), main.js sends it to a controller
+// 4. controller - the controller handles the event, changing the state object
+function update () {
+  controllers.playback().showOrHidePlayerControls()
+  app.setState(state)
+  updateElectron()
+}
+
+// Some state changes can't be reflected in the DOM, instead we have to
+// tell the main process to update the window or OS integrations
+function updateElectron () {
+  if (state.window.title !== state.prev.title) {
+    state.prev.title = state.window.title
+    ipcRenderer.send('setTitle', state.window.title)
+  }
+  if (state.dock.progress.toFixed(2) !== state.prev.progress.toFixed(2)) {
+    state.prev.progress = state.dock.progress
+    ipcRenderer.send('setProgress', state.dock.progress)
+  }
+  if (state.dock.badge !== state.prev.badge) {
+    state.prev.badge = state.dock.badge
+    ipcRenderer.send('setBadge', state.dock.badge || 0)
+  }
+}
+
+const dispatchHandlers = {
+  // Torrent list: creating, deleting, selecting torrents
+  'openTorrentFile': () => ipcRenderer.send('openTorrentFile'),
+  'openFiles': () => ipcRenderer.send('openFiles'), /* shows the open file dialog */
+  'openTorrentAddress': () => { state.modal = { id: 'open-torrent-address-modal' } },
+
+  'addTorrent': (torrentId) => controllers.torrentList().addTorrent(torrentId),
+  'showCreateTorrent': (paths) => controllers.torrentList().showCreateTorrent(paths),
+  'createTorrent': (options) => controllers.torrentList().createTorrent(options),
+  'toggleTorrent': (infoHash) => controllers.torrentList().toggleTorrent(infoHash),
+  'pauseAllTorrents': () => controllers.torrentList().pauseAllTorrents(),
+  'resumeAllTorrents': () => controllers.torrentList().resumeAllTorrents(),
+  'toggleTorrentFile': (infoHash, index) =>
+    controllers.torrentList().toggleTorrentFile(infoHash, index),
+  'confirmDeleteTorrent': (infoHash, deleteData) =>
+    controllers.torrentList().confirmDeleteTorrent(infoHash, deleteData),
+  'deleteTorrent': (infoHash, deleteData) =>
+    controllers.torrentList().deleteTorrent(infoHash, deleteData),
+  'toggleSelectTorrent': (infoHash) =>
+    controllers.torrentList().toggleSelectTorrent(infoHash),
+  'openTorrentContextMenu': (infoHash) =>
+    controllers.torrentList().openTorrentContextMenu(infoHash),
+  'startTorrentingSummary': (torrentKey) =>
+    controllers.torrentList().startTorrentingSummary(torrentKey),
+  'saveTorrentFileAs': (torrentKey) =>
+    controllers.torrentList().saveTorrentFileAs(torrentKey),
+
+  // Playback
+  'playFile': (infoHash, index) => controllers.playback().playFile(infoHash, index),
+  'playPause': () => controllers.playback().playPause(),
+  'nextTrack': () => controllers.playback().nextTrack(),
+  'previousTrack': () => controllers.playback().previousTrack(),
+  'skip': (time) => controllers.playback().skip(time),
+  'skipTo': (time) => controllers.playback().skipTo(time),
+  'changePlaybackRate': (dir) => controllers.playback().changePlaybackRate(dir),
+  'changeVolume': (delta) => controllers.playback().changeVolume(delta),
+  'setVolume': (vol) => controllers.playback().setVolume(vol),
+  'openItem': (infoHash, index) => controllers.playback().openItem(infoHash, index),
+
+  // Subtitles
+  'openSubtitles': () => controllers.subtitles().openSubtitles(),
+  'selectSubtitle': (index) => controllers.subtitles().selectSubtitle(index),
+  'toggleSubtitlesMenu': () => controllers.subtitles().toggleSubtitlesMenu(),
+  'checkForSubtitles': () => controllers.subtitles().checkForSubtitles(),
+  'addSubtitles': (files, autoSelect) => controllers.subtitles().addSubtitles(files, autoSelect),
+
+  // Local media: <video>, <audio>, external players
+  'mediaStalled': () => controllers.media().mediaStalled(),
+  'mediaError': (err) => controllers.media().mediaError(err),
+  'mediaSuccess': () => controllers.media().mediaSuccess(),
+  'mediaTimeUpdate': () => controllers.media().mediaTimeUpdate(),
+  'mediaMouseMoved': () => controllers.media().mediaMouseMoved(),
+  'mediaControlsMouseEnter': () => controllers.media().controlsMouseEnter(),
+  'mediaControlsMouseLeave': () => controllers.media().controlsMouseLeave(),
+  'openExternalPlayer': () => controllers.media().openExternalPlayer(),
+  'externalPlayerNotFound': () => controllers.media().externalPlayerNotFound(),
+
+  // Remote casting: Chromecast, Airplay, etc
+  'toggleCastMenu': (deviceType) => lazyLoadCast().toggleMenu(deviceType),
+  'selectCastDevice': (index) => lazyLoadCast().selectDevice(index),
+  'stopCasting': () => lazyLoadCast().stop(),
+
+  // Preferences screen
+  'preferences': () => controllers.prefs().show(),
+  'updatePreferences': (key, value) => controllers.prefs().update(key, value),
+  'checkDownloadPath': checkDownloadPath,
+
+  // Update (check for new versions on Linux, where there's no auto updater)
+  'updateAvailable': (version) => controllers.update().updateAvailable(version),
+  'skipVersion': (version) => controllers.update().skipVersion(version),
+
+  // Navigation between screens (back, forward, ESC, etc)
+  'exitModal': () => { state.modal = null },
+  'backToList': backToList,
+  'escapeBack': escapeBack,
+  'back': () => state.location.back(),
+  'forward': () => state.location.forward(),
+  'cancel': () => state.location.cancel(),
+
+  // Controlling the window
+  'setDimensions': setDimensions,
+  'toggleFullScreen': (setTo) => ipcRenderer.send('toggleFullScreen', setTo),
+  'setTitle': (title) => { state.window.title = title },
+  'resetTitle': () => { state.window.title = config.APP_WINDOW_TITLE },
+
+  // Everything else
+  'onOpen': onOpen,
+  'error': onError,
+  'uncaughtError': (proc, err) => telemetry.logUncaughtError(proc, err),
+  'stateSave': () => State.save(state),
+  'stateSaveImmediate': () => State.saveImmediate(state),
+  'update': () => {} // No-op, just trigger an update
+}
+
+// Events from the UI never modify state directly. Instead they call dispatch()
+function dispatch (action, ...args) {
+  // Log dispatch calls, for debugging, but don't spam
+  if (!['mediaMouseMoved', 'mediaTimeUpdate', 'update'].includes(action)) {
+    console.log('dispatch: %s %o', action, args)
+  }
+
+  const handler = dispatchHandlers[action]
+  if (handler) handler(...args)
+  else console.error('Missing dispatch handler: ' + action)
+
+  // Update the virtual DOM, unless it's just a mouse move event
+  if (action !== 'mediaMouseMoved' ||
+      controllers.playback().showOrHidePlayerControls()) {
+    update()
+  }
+}
+
+// Listen to events from the main and webtorrent processes
+function setupIpc () {
+  ipcRenderer.on('log', (e, ...args) => console.log(...args))
+  ipcRenderer.on('error', (e, ...args) => console.error(...args))
+
+  ipcRenderer.on('dispatch', (e, ...args) => dispatch(...args))
+
+  ipcRenderer.on('fullscreenChanged', onFullscreenChanged)
+  ipcRenderer.on('windowBoundsChanged', onWindowBoundsChanged)
+
+  const tc = controllers.torrent()
+  ipcRenderer.on('wt-infohash', (e, ...args) => tc.torrentInfoHash(...args))
+  ipcRenderer.on('wt-metadata', (e, ...args) => tc.torrentMetadata(...args))
+  ipcRenderer.on('wt-done', (e, ...args) => tc.torrentDone(...args))
+  ipcRenderer.on('wt-warning', (e, ...args) => tc.torrentWarning(...args))
+  ipcRenderer.on('wt-error', (e, ...args) => tc.torrentError(...args))
+
+  ipcRenderer.on('wt-progress', (e, ...args) => tc.torrentProgress(...args))
+  ipcRenderer.on('wt-file-modtimes', (e, ...args) => tc.torrentFileModtimes(...args))
+  ipcRenderer.on('wt-file-saved', (e, ...args) => tc.torrentFileSaved(...args))
+  ipcRenderer.on('wt-poster', (e, ...args) => tc.torrentPosterSaved(...args))
+  ipcRenderer.on('wt-audio-metadata', (e, ...args) => tc.torrentAudioMetadata(...args))
+  ipcRenderer.on('wt-server-running', (e, ...args) => tc.torrentServerRunning(...args))
+
+  ipcRenderer.on('wt-uncaught-error', (e, err) => telemetry.logUncaughtError('webtorrent', err))
+
+  ipcRenderer.send('ipcReady')
+
+  State.on('stateSaved', () => ipcRenderer.send('stateSaved'))
+}
+
+// Quits any modal popovers and returns to the torrent list screen
+function backToList () {
+  // Exit any modals and screens with a back button
+  state.modal = null
+  state.location.backToFirst(function () {
+    // If we were already on the torrent list, scroll to the top
+    const contentTag = document.querySelector('.content')
+    if (contentTag) contentTag.scrollTop = 0
+  })
+}
+
+// Quits modals, full screen, or goes back. Happens when the user hits ESC
+function escapeBack () {
+  if (state.modal) {
+    dispatch('exitModal')
+  } else if (state.window.isFullScreen) {
+    dispatch('toggleFullScreen')
+  } else {
+    dispatch('back')
+  }
+}
+
+// Starts all torrents that aren't paused on program startup
+function resumeTorrents () {
+  state.saved.torrents
+    .map((torrentSummary) => {
+      // Torrent keys are ephemeral, reassigned each time the app runs.
+      // On startup, give all torrents a key, even the ones that are paused.
+      torrentSummary.torrentKey = state.nextTorrentKey++
+      return torrentSummary
+    })
+    .filter((s) => s.status !== 'paused')
+    .forEach((s) => controllers.torrentList().startTorrentingSummary(s.torrentKey))
+}
+
+// Set window dimensions to match video dimensions or fill the screen
+function setDimensions (dimensions) {
+  // Don't modify the window size if it's already maximized
+  if (electron.remote.getCurrentWindow().isMaximized()) {
+    state.window.bounds = null
+    return
+  }
+
+  // Save the bounds of the window for later. See restoreBounds()
+  state.window.bounds = {
+    x: window.screenX,
+    y: window.screenY,
+    width: window.outerWidth,
+    height: window.outerHeight
+  }
+  state.window.wasMaximized = electron.remote.getCurrentWindow().isMaximized
+
+  // Limit window size to screen size
+  const screenWidth = window.screen.width
+  const screenHeight = window.screen.height
+  const aspectRatio = dimensions.width / dimensions.height
+  const scaleFactor = Math.min(
+    Math.min(screenWidth / dimensions.width, 1),
+    Math.min(screenHeight / dimensions.height, 1)
+  )
+  const width = Math.max(
+    Math.floor(dimensions.width * scaleFactor),
+    config.WINDOW_MIN_WIDTH
+  )
+  const height = Math.max(
+    Math.floor(dimensions.height * scaleFactor),
+    config.WINDOW_MIN_HEIGHT
+  )
+
+  ipcRenderer.send('setAspectRatio', aspectRatio)
+  ipcRenderer.send('setBounds', {contentBounds: true, x: null, y: null, width, height})
+  state.playing.aspectRatio = aspectRatio
+}
+
+// Called when the user adds files (.torrent, files to seed, subtitles) to the app
+// via any method (drag-drop, drag to app icon, command line)
+function onOpen (files) {
+  if (!Array.isArray(files)) files = [ files ]
+
+  const url = state.location.url()
+  const allTorrents = files.every(TorrentPlayer.isTorrent)
+  const allSubtitles = files.every(controllers.subtitles().isSubtitle)
+
+  if (allTorrents) {
+    // Drop torrents onto the app: go to home screen, add torrents, no matter what
+    dispatch('backToList')
+    // All .torrent files? Add them.
+    files.forEach((file) => controllers.torrentList().addTorrent(file))
+  } else if (url === 'player' && allSubtitles) {
+    // Drop subtitles onto a playing video: add subtitles
+    controllers.subtitles().addSubtitles(files, true)
+  } else if (url === 'home') {
+    // Drop files onto home screen: show Create Torrent
+    state.modal = null
+    controllers.torrentList().showCreateTorrent(files)
+  } else {
+    // Drop files onto any other screen: show error
+    return onError('Please go back to the torrent list before creating a new torrent.')
+  }
+
+  update()
+}
+
+function onError (err) {
+  console.error(err.stack || err)
+  sound.play('ERROR')
+  state.errors.push({
+    time: new Date().getTime(),
+    message: err.message || err
+  })
+
+  update()
+}
+
+const editableHtmlTags = new Set(['input', 'textarea'])
+
+function onPaste (e) {
+  if (editableHtmlTags.has(e.target.tagName.toLowerCase())) return
+  controllers.torrentList().addTorrent(electron.clipboard.readText())
+
+  update()
+}
+
+function onFocus (e) {
+  state.window.isFocused = true
+  state.dock.badge = 0
+  update()
+}
+
+function onBlur () {
+  state.window.isFocused = false
+  update()
+}
+
+function onVisibilityChange () {
+  state.window.isVisible = !document.webkitHidden
+}
+
+function onFullscreenChanged (e, isFullScreen) {
+  state.window.isFullScreen = isFullScreen
+  if (!isFullScreen) {
+    // Aspect ratio gets reset in fullscreen mode, so restore it (Mac)
+    ipcRenderer.send('setAspectRatio', state.playing.aspectRatio)
+  }
+
+  update()
+}
+
+function onWindowBoundsChanged (e, newBounds) {
+  if (state.location.url() !== 'player') {
+    state.saved.bounds = newBounds
+    dispatch('stateSave')
+  }
+}
+
+function checkDownloadPath () {
+  fs.stat(state.saved.prefs.downloadPath, function (err, stat) {
+    if (err) {
+      state.downloadPathStatus = 'missing'
+      return console.error(err)
+    }
+    if (stat.isDirectory()) state.downloadPathStatus = 'ok'
+    else state.downloadPathStatus = 'missing'
+  })
+}

src/renderer/pages/app.js

@@ -0,0 +1,130 @@
+const colors = require('material-ui/styles/colors')
+const createGetter = require('fn-getter')
+const React = require('react')
+
+const darkBaseTheme = require('material-ui/styles/baseThemes/darkBaseTheme').default
+const getMuiTheme = require('material-ui/styles/getMuiTheme').default
+const MuiThemeProvider = require('material-ui/styles/MuiThemeProvider').default
+
+const Header = require('../components/header')
+
+// Perf optimization: Needed immediately, so do not lazy load it below
+const TorrentListPage = require('./torrent-list-page')
+
+const Views = {
+  'home': createGetter(() => TorrentListPage),
+  'player': createGetter(() => require('./player-page')),
+  'create-torrent': createGetter(() => require('./create-torrent-page')),
+  'preferences': createGetter(() => require('./preferences-page'))
+}
+
+const Modals = {
+  'open-torrent-address-modal': createGetter(
+    () => require('../components/open-torrent-address-modal')
+  ),
+  'remove-torrent-modal': createGetter(() => require('../components/remove-torrent-modal')),
+  'update-available-modal': createGetter(() => require('../components/update-available-modal')),
+  'unsupported-media-modal': createGetter(() => require('../components/unsupported-media-modal'))
+}
+
+const fontFamily = process.platform === 'win32'
+  ? '"Segoe UI", sans-serif'
+  : 'BlinkMacSystemFont, "Helvetica Neue", Helvetica, sans-serif'
+
+darkBaseTheme.fontFamily = fontFamily
+darkBaseTheme.userAgent = false
+darkBaseTheme.palette.primary1Color = colors.grey50
+darkBaseTheme.palette.primary2Color = colors.grey50
+darkBaseTheme.palette.primary3Color = colors.grey600
+darkBaseTheme.palette.accent1Color = colors.redA200
+darkBaseTheme.palette.accent2Color = colors.redA400
+darkBaseTheme.palette.accent3Color = colors.redA100
+
+let darkMuiTheme
+let lightMuiTheme
+
+class App extends React.Component {
+  render () {
+    const state = this.props.state
+
+    // Hide player controls while playing video, if the mouse stays still for a while
+    // Never hide the controls when:
+    // * The mouse is over the controls or we're scrubbing (see CSS)
+    // * The video is paused
+    // * The video is playing remotely on Chromecast or Airplay
+    const hideControls = state.shouldHidePlayerControls()
+
+    const cls = [
+      'view-' + state.location.url(), /* e.g. view-home, view-player */
+      'is-' + process.platform /* e.g. is-darwin, is-win32, is-linux */
+    ]
+    if (state.window.isFullScreen) cls.push('is-fullscreen')
+    if (state.window.isFocused) cls.push('is-focused')
+    if (hideControls) cls.push('hide-video-controls')
+
+    if (!darkMuiTheme) {
+      darkMuiTheme = getMuiTheme(darkBaseTheme)
+    }
+
+    return (
+      <MuiThemeProvider muiTheme={darkMuiTheme}>
+        <div className={'app ' + cls.join(' ')}>
+          <Header state={state} />
+          {this.getErrorPopover()}
+          <div key='content' className='content'>{this.getView()}</div>
+          {this.getModal()}
+        </div>
+      </MuiThemeProvider>
+    )
+  }
+
+  getErrorPopover () {
+    const state = this.props.state
+    const now = new Date().getTime()
+    const recentErrors = state.errors.filter((x) => now - x.time < 5000)
+    const hasErrors = recentErrors.length > 0
+
+    const errorElems = recentErrors.map(function (error, i) {
+      return (<div key={i} className='error'>{error.message}</div>)
+    })
+    return (
+      <div key='errors'
+        className={'error-popover ' + (hasErrors ? 'visible' : 'hidden')}>
+        <div key='title' className='title'>Error</div>
+        {errorElems}
+      </div>
+    )
+  }
+
+  getModal () {
+    const state = this.props.state
+    if (!state.modal) return
+
+    if (!lightMuiTheme) {
+      const lightBaseTheme = require('material-ui/styles/baseThemes/lightBaseTheme').default
+      lightBaseTheme.fontFamily = fontFamily
+      lightBaseTheme.userAgent = false
+      lightMuiTheme = getMuiTheme(lightBaseTheme)
+    }
+
+    const ModalContents = Modals[state.modal.id]()
+    return (
+      <MuiThemeProvider muiTheme={lightMuiTheme}>
+        <div key='modal' className='modal'>
+          <div key='modal-background' className='modal-background' />
+          <div key='modal-content' className='modal-content'>
+            <ModalContents state={state} />
+          </div>
+        </div>
+      </MuiThemeProvider>
+    )
+  }
+
+  getView () {
+    const state = this.props.state
+    const View = Views[state.location.url()]()
+    return (<View state={state} />)
+  }
+}
+
+module.exports = App

src/renderer/pages/create-torrent-page.js

@@ -0,0 +1,216 @@
+const createTorrent = require('create-torrent')
+const path = require('path')
+const prettyBytes = require('prettier-bytes')
+const React = require('react')
+
+const {dispatch, dispatcher} = require('../lib/dispatcher')
+
+const FlatButton = require('material-ui/FlatButton').default
+const RaisedButton = require('material-ui/RaisedButton').default
+const TextField = require('material-ui/TextField').default
+const Checkbox = require('material-ui/Checkbox').default
+
+const CreateTorrentErrorPage = require('../components/create-torrent-error-page')
+const Heading = require('../components/heading')
+const ShowMore = require('../components/show-more')
+
+// Shows a basic UI to create a torrent, from an already-selected file or folder.
+// Includes a "Show Advanced..." button and more advanced UI.
+class CreateTorrentPage extends React.Component {
+  constructor (props) {
+    super(props)
+
+    const state = this.props.state
+    const info = state.location.current()
+
+    // First, extract the base folder that the files are all in
+    let pathPrefix = info.folderPath
+    if (!pathPrefix) {
+      pathPrefix = info.files.map((x) => x.path).reduce(findCommonPrefix)
+      if (!pathPrefix.endsWith('/') && !pathPrefix.endsWith('\\')) {
+        pathPrefix = path.dirname(pathPrefix)
+      }
+    }
+
+    // Then, exclude .DS_Store and other dotfiles
+    const files = info.files
+      .filter((f) => !containsDots(f.path, pathPrefix))
+      .map((f) => ({name: f.name, path: f.path, size: f.size}))
+    if (files.length === 0) return (<CreateTorrentErrorPage state={state} />)
+
+    // Then, use the name of the base folder (or sole file, for a single file torrent)
+    // as the default name. Show all files relative to the base folder.
+    let defaultName, basePath
+    if (files.length === 1) {
+      // Single file torrent: /a/b/foo.jpg -> torrent name 'foo.jpg', path '/a/b'
+      defaultName = files[0].name
+      basePath = pathPrefix
+    } else {
+      // Multi file torrent: /a/b/{foo, bar}.jpg -> torrent name 'b', path '/a'
+      defaultName = path.basename(pathPrefix)
+      basePath = path.dirname(pathPrefix)
+    }
+
+    // Default trackers
+    const trackers = createTorrent.announceList.join('\n')
+
+    this.state = {
+      comment: '',
+      isPrivate: false,
+      pathPrefix,
+      basePath,
+      defaultName,
+      files,
+      trackers
+    }
+
+    // Create React event handlers only once
+    this.setIsPrivate = (_, isPrivate) => this.setState({isPrivate})
+    this.setComment = (_, comment) => this.setState({comment})
+    this.setTrackers = (_, trackers) => this.setState({trackers})
+    this.handleSubmit = handleSubmit.bind(this)
+  }
+
+  render () {
+    const files = this.state.files
+
+    // Sanity check: show the number of files and total size
+    const numFiles = files.length
+    const totalBytes = files
+      .map((f) => f.size)
+      .reduce((a, b) => a + b, 0)
+    const torrentInfo = `${numFiles} files, ${prettyBytes(totalBytes)}`
+
+    return (
+      <div className='create-torrent'>
+        <Heading level={1}>Create torrent {this.state.defaultName}</Heading>
+        <div className='torrent-info'>{torrentInfo}</div>
+        <div className='torrent-attribute'>
+          <label>Path:</label>
+          <div>{this.state.pathPrefix}</div>
+        </div>
+        <ShowMore
+          style={{
+            marginBottom: 10
+          }}
+          hideLabel='Hide advanced settings...'
+          showLabel='Show advanced settings...'>
+          {this.renderAdvanced()}
+        </ShowMore>
+        <div className='float-right'>
+          <FlatButton
+            className='control cancel'
+            label='Cancel'
+            style={{
+              marginRight: 10
+            }}
+            onClick={dispatcher('cancel')} />
+          <RaisedButton
+            className='control create-torrent-button'
+            label='Create Torrent'
+            primary
+            onClick={this.handleSubmit} />
+        </div>
+      </div>
+    )
+  }
+
+  // Renders everything after clicking Show Advanced...:
+  // * Is Private? (private torrents, not announced to DHT)
+  // * Announce list (trackers)
+  // * Comment
+  renderAdvanced () {
+    // Create file list
+    const maxFileElems = 100
+    const files = this.state.files
+    const fileElems = files.slice(0, maxFileElems).map((file, i) => {
+      const relativePath = path.relative(this.state.pathPrefix, file.path)
+      return (<div key={i}>{relativePath}</div>)
+    })
+    if (files.length > maxFileElems) {
+      fileElems.push(<div key='more'>+ {files.length - maxFileElems} more</div>)
+    }
+
+    // Align the text fields
+    const textFieldStyle = { width: '' }
+    const textareaStyle = { margin: 0 }
+
+    return (
+      <div key='advanced' className='create-torrent-advanced'>
+        <div key='private' className='torrent-attribute'>
+          <label>Private:</label>
+          <Checkbox
+            className='torrent-is-private control'
+            style={{display: ''}}
+            checked={this.state.isPrivate}
+            onCheck={this.setIsPrivate} />
+        </div>
+        <div key='trackers' className='torrent-attribute'>
+          <label>Trackers:</label>
+          <TextField
+            className='torrent-trackers control'
+            style={textFieldStyle}
+            textareaStyle={textareaStyle}
+            multiLine
+            rows={2}
+            rowsMax={10}
+            value={this.state.trackers}
+            onChange={this.setTrackers} />
+        </div>
+        <div key='comment' className='torrent-attribute'>
+          <label>Comment:</label>
+          <TextField
+            className='torrent-comment control'
+            style={textFieldStyle}
+            textareaStyle={textareaStyle}
+            hintText='Optionally describe your torrent...'
+            multiLine
+            rows={2}
+            rowsMax={10}
+            value={this.state.comment}
+            onChange={this.setComment} />
+        </div>
+        <div key='files' className='torrent-attribute'>
+          <label>Files:</label>
+          <div>{fileElems}</div>
+        </div>
+      </div>
+    )
+  }
+}
+
+function handleSubmit () {
+  const announceList = this.state.trackers
+    .split('\n')
+    .map((s) => s.trim())
+    .filter((s) => s !== '')
+  const options = {
+    // We can't let the user choose their own name if we want WebTorrent
+    // to use the files in place rather than creating a new folder.
+    name: this.state.defaultName,
+    path: this.state.basePath,
+    files: this.state.files,
+    announce: announceList,
+    private: this.state.isPrivate,
+    comment: this.state.comment.trim()
+  }
+  dispatch('createTorrent', options)
+}
+
+// Finds the longest common prefix
+function findCommonPrefix (a, b) {
+  let i
+  for (i = 0; i < a.length && i < b.length; i++) {
+    if (a.charCodeAt(i) !== b.charCodeAt(i)) break
+  }
+  if (i === a.length) return a
+  if (i === b.length) return b
+  return a.substring(0, i)
+}
+
+function containsDots (path, pathPrefix) {
+  const suffix = path.substring(pathPrefix.length).replace(/\\/g, '/')
+  return ('/' + suffix).includes('/.')
+}
+
+module.exports = CreateTorrentPage

src/renderer/pages/player-page.js

@@ -0,0 +1,662 @@
+const React = require('react')
+const Bitfield = require('bitfield')
+const prettyBytes = require('prettier-bytes')
+const zeroFill = require('zero-fill')
+
+const TorrentSummary = require('../lib/torrent-summary')
+const Playlist = require('../lib/playlist')
+const {dispatch, dispatcher} = require('../lib/dispatcher')
+const config = require('../../config')
+
+// Shows a streaming video player. Standard features + Chromecast + Airplay
+module.exports = class Player extends React.Component {
+  render () {
+    // Show the video as large as will fit in the window, play immediately
+    // If the video is on Chromecast or Airplay, show a title screen instead
+    const state = this.props.state
+    const showVideo = state.playing.location === 'local'
+    const showControls = state.playing.location !== 'external'
+    return (
+      <div
+        className='player'
+        onWheel={handleVolumeWheel}
+        onMouseMove={dispatcher('mediaMouseMoved')}>
+        {showVideo ? renderMedia(state) : renderCastScreen(state)}
+        {showControls ? renderPlayerControls(state) : null}
+      </div>
+    )
+  }
+
+  onComponentWillUnmount () {
+    // Unload the media element so that Chromium stops trying to fetch data
+    const tag = document.querySelector('audio,video')
+    if (!tag) return
+    tag.pause()
+    tag.src = ''
+    tag.load()
+  }
+}
+
+// Handles volume change by wheel
+function handleVolumeWheel (e) {
+  dispatch('changeVolume', (-e.deltaY | e.deltaX) / 500)
+}
+
+function renderMedia (state) {
+  if (!state.server) return
+
+  // Unfortunately, play/pause can't be done just by modifying HTML.
+  // Instead, grab the DOM node and play/pause it if necessary
+  // Get the <video> or <audio> tag
+  const mediaElement = document.querySelector(state.playing.type)
+  if (mediaElement !== null) {
+    if (state.playing.isPaused && !mediaElement.paused) {
+      mediaElement.pause()
+    } else if (!state.playing.isPaused && mediaElement.paused) {
+      mediaElement.play()
+    }
+    // When the user clicks or drags on the progress bar, jump to that position
+    if (state.playing.jumpToTime != null) {
+      mediaElement.currentTime = state.playing.jumpToTime
+      state.playing.jumpToTime = null
+    }
+    if (state.playing.playbackRate !== mediaElement.playbackRate) {
+      mediaElement.playbackRate = state.playing.playbackRate
+    }
+    // Recover previous volume
+    if (state.previousVolume !== null && isFinite(state.previousVolume)) {
+      mediaElement.volume = state.previousVolume
+      state.previousVolume = null
+    }
+
+    // Set volume
+    if (state.playing.setVolume !== null && isFinite(state.playing.setVolume)) {
+      mediaElement.volume = state.playing.setVolume
+      state.playing.setVolume = null
+    }
+
+    // Switch to the newly added subtitle track, if available
+    const tracks = mediaElement.textTracks || []
+    for (let j = 0; j < tracks.length; j++) {
+      const isSelectedTrack = j === state.playing.subtitles.selectedIndex
+      tracks[j].mode = isSelectedTrack ? 'showing' : 'hidden'
+    }
+
+    // Save video position
+    const file = state.getPlayingFileSummary()
+    file.currentTime = state.playing.currentTime = mediaElement.currentTime
+    file.duration = state.playing.duration = mediaElement.duration
+
+    // Save selected subtitle
+    if (state.playing.subtitles.selectedIndex !== -1) {
+      const index = state.playing.subtitles.selectedIndex
+      file.selectedSubtitle = state.playing.subtitles.tracks[index].filePath
+    } else if (file.selectedSubtitle != null) {
+      delete file.selectedSubtitle
+    }
+
+    state.playing.volume = mediaElement.volume
+  }
+
+  // Add subtitles to the <video> tag
+  const trackTags = []
+  if (state.playing.subtitles.selectedIndex >= 0) {
+    for (let i = 0; i < state.playing.subtitles.tracks.length; i++) {
+      const track = state.playing.subtitles.tracks[i]
+      const isSelected = state.playing.subtitles.selectedIndex === i
+      trackTags.push(
+        <track
+          key={i}
+          default={isSelected ? 'default' : ''}
+          label={track.label}
+          type='subtitles'
+          src={track.buffer} />
+      )
+    }
+  }
+
+  // Create the <audio> or <video> tag
+  const MediaTagName = state.playing.type
+  const mediaTag = (
+    <MediaTagName
+      src={Playlist.getCurrentLocalURL(state)}
+      onDoubleClick={dispatcher('toggleFullScreen')}
+      onLoadedMetadata={onLoadedMetadata}
+      onEnded={onEnded}
+      onStalled={dispatcher('mediaStalled')}
+      onError={dispatcher('mediaError')}
+      onTimeUpdate={dispatcher('mediaTimeUpdate')}
+      onEncrypted={dispatcher('mediaEncrypted')}
+      onCanPlay={onCanPlay}>
+      {trackTags}
+    </MediaTagName>
+  )
+
+  // Show the media.
+  return (
+    <div
+      key='letterbox'
+      className='letterbox'
+      onMouseMove={dispatcher('mediaMouseMoved')}>
+      {mediaTag}
+      {renderOverlay(state)}
+    </div>
+  )
+
+  // As soon as we know the video dimensions, resize the window
+  function onLoadedMetadata (e) {
+    if (state.playing.type !== 'video') return
+    const video = e.target
+    const dimensions = {
+      width: video.videoWidth,
+      height: video.videoHeight
+    }
+    dispatch('setDimensions', dimensions)
+  }
+
+  function onEnded (e) {
+    if (Playlist.hasNext(state)) {
+      dispatch('nextTrack')
+    } else {
+      // When the last video completes, pause the video instead of looping
+      state.playing.isPaused = true
+    }
+  }
+
+  function onCanPlay (e) {
+    const elem = e.target
+    if (state.playing.type === 'video' &&
+      elem.webkitVideoDecodedByteCount === 0) {
+      dispatch('mediaError', 'Video codec unsupported')
+    } else if (elem.webkitAudioDecodedByteCount === 0) {
+      dispatch('mediaError', 'Audio codec unsupported')
+    } else {
+      dispatch('mediaSuccess')
+      elem.play()
+    }
+  }
+}
+
+function renderOverlay (state) {
+  const elems = []
+  const audioMetadataElem = renderAudioMetadata(state)
+  const spinnerElem = renderLoadingSpinner(state)
+  if (audioMetadataElem) elems.push(audioMetadataElem)
+  if (spinnerElem) elems.push(spinnerElem)
+
+  // Video fills the window, centered with black bars if necessary
+  // Audio gets a static poster image and a summary of the file metadata.
+  let style
+  if (state.playing.type === 'audio') {
+    style = { backgroundImage: cssBackgroundImagePoster(state) }
+  } else if (elems.length !== 0) {
+    style = { backgroundImage: cssBackgroundImageDarkGradient() }
+  } else {
+    // Video playing, so no spinner. No overlay needed
+    return
+  }
+
+  return (
+    <div key='overlay' className='media-overlay-background' style={style}>
+      <div className='media-overlay'>{elems}</div>
+    </div>
+  )
+}
+
+function renderAudioMetadata (state) {
+  const fileSummary = state.getPlayingFileSummary()
+  if (!fileSummary.audioInfo) return
+  const info = fileSummary.audioInfo
+
+  // Get audio track info
+  let title = info.title
+  if (!title) {
+    title = fileSummary.name
+  }
+  let artist = info.artist && info.artist[0]
+  let album = info.album
+  if (album && info.year && !album.includes(info.year)) {
+    album += ' (' + info.year + ')'
+  }
+  let track
+  if (info.track && info.track.no && info.track.of) {
+    track = info.track.no + ' of ' + info.track.of
+  }
+
+  // Show a small info box in the middle of the screen with title/album/etc
+  const elems = []
+  if (artist) {
+    elems.push((
+      <div key='artist' className='audio-artist'>
+        <label>Artist</label>{artist}
+      </div>
+    ))
+  }
+  if (album) {
+    elems.push((
+      <div key='album' className='audio-album'>
+        <label>Album</label>{album}
+      </div>
+    ))
+  }
+  if (track) {
+    elems.push((
+      <div key='track' className='audio-track'>
+        <label>Track</label>{track}
+      </div>
+    ))
+  }
+
+  // Align the title with the other info, if available. Otherwise, center title
+  const emptyLabel = (<label />)
+  elems.unshift((
+    <div key='title' className='audio-title'>
+      {elems.length ? emptyLabel : undefined}{title}
+    </div>
+  ))
+
+  return (<div key='audio-metadata' className='audio-metadata'>{elems}</div>)
+}
+
+function renderLoadingSpinner (state) {
+  if (state.playing.isPaused) return
+  const isProbablyStalled = state.playing.isStalled ||
+    (new Date().getTime() - state.playing.lastTimeUpdate > 2000)
+  if (!isProbablyStalled) return
+
+  const prog = state.getPlayingTorrentSummary().progress || {}
+  let fileProgress = 0
+  if (prog.files) {
+    const file = prog.files[state.playing.fileIndex]
+    fileProgress = Math.floor(100 * file.numPiecesPresent / file.numPieces)
+  }
+
+  return (
+    <div key='loading' className='media-stalled'>
+      <div key='loading-spinner' className='loading-spinner'>&nbsp;</div>
+      <div key='loading-progress' className='loading-status ellipsis'>
+        <span className='progress'>{fileProgress}%</span> downloaded
+        <span> ↓ {prettyBytes(prog.downloadSpeed || 0)}/s</span>
+        <span> ↑ {prettyBytes(prog.uploadSpeed || 0)}/s</span>
+      </div>
+    </div>
+  )
+}
+
+function renderCastScreen (state) {
+  let castIcon, castType, isCast
+  if (state.playing.location.startsWith('chromecast')) {
+    castIcon = 'cast_connected'
+    castType = 'Chromecast'
+    isCast = true
+  } else if (state.playing.location.startsWith('airplay')) {
+    castIcon = 'airplay'
+    castType = 'AirPlay'
+    isCast = true
+  } else if (state.playing.location.startsWith('dlna')) {
+    castIcon = 'tv'
+    castType = 'DLNA'
+    isCast = true
+  } else if (state.playing.location === 'external') {
+    castIcon = 'tv'
+    castType = state.getExternalPlayerName()
+    isCast = false
+  } else if (state.playing.location === 'error') {
+    castIcon = 'error_outline'
+    castType = 'Error'
+    isCast = false
+  }
+
+  const isStarting = state.playing.location.endsWith('-pending')
+  const castName = state.playing.castName
+  let castStatus
+  if (isCast && isStarting) castStatus = 'Connecting to ' + castName + '...'
+  else if (isCast && !isStarting) castStatus = 'Connected to ' + castName
+  else castStatus = ''
+
+  // Show a nice title image, if possible
+  const style = {
+    backgroundImage: cssBackgroundImagePoster(state)
+  }
+
+  return (
+    <div key='cast' className='letterbox' style={style}>
+      <div className='cast-screen'>
+        <i className='icon'>{castIcon}</i>
+        <div key='type' className='cast-type'>{castType}</div>
+        <div key='status' className='cast-status'>{castStatus}</div>
+      </div>
+    </div>
+  )
+}
+
+function renderCastOptions (state) {
+  if (!state.devices.castMenu) return
+
+  const {location, devices} = state.devices.castMenu
+  const player = state.devices[location]
+
+  const items = devices.map(function (device, ix) {
+    const isSelected = player.device === device
+    const name = device.name
+    return (
+      <li key={ix} onClick={dispatcher('selectCastDevice', ix)}>
+        <i className='icon'>{isSelected ? 'radio_button_checked' : 'radio_button_unchecked'}</i>
+        {name}
+      </li>
+    )
+  })
+
+  return (
+    <ul key='cast-options' className='options-list'>
+      {items}
+    </ul>
+  )
+}
+
+function renderSubtitleOptions (state) {
+  const subtitles = state.playing.subtitles
+  if (!subtitles.tracks.length || !subtitles.showMenu) return
+
+  const items = subtitles.tracks.map(function (track, ix) {
+    const isSelected = state.playing.subtitles.selectedIndex === ix
+    return (
+      <li key={ix} onClick={dispatcher('selectSubtitle', ix)}>
+        <i className='icon'>{'radio_button_' + (isSelected ? 'checked' : 'unchecked')}</i>
+        {track.label}
+      </li>
+    )
+  })
+
+  const noneSelected = state.playing.subtitles.selectedIndex === -1
+  const noneClass = 'radio_button_' + (noneSelected ? 'checked' : 'unchecked')
+  return (
+    <ul key='subtitle-options' className='options-list'>
+      {items}
+      <li onClick={dispatcher('selectSubtitle', -1)}>
+        <i className='icon'>{noneClass}</i>
+        None
+      </li>
+    </ul>
+  )
+}
+
+function renderPlayerControls (state) {
+  const positionPercent = 100 * state.playing.currentTime / state.playing.duration
+  const playbackCursorStyle = { left: 'calc(' + positionPercent + '% - 3px)' }
+  const captionsClass = state.playing.subtitles.tracks.length === 0
+    ? 'disabled'
+    : state.playing.subtitles.selectedIndex >= 0
+      ? 'active'
+      : ''
+  const prevClass = Playlist.hasPrevious(state) ? '' : 'disabled'
+  const nextClass = Playlist.hasNext(state) ? '' : 'disabled'
+
+  const elements = [
+    <div key='playback-bar' className='playback-bar'>
+      {renderLoadingBar(state)}
+      <div
+        key='cursor'
+        className='playback-cursor'
+        style={playbackCursorStyle} />
+      <div
+        key='scrub-bar'
+        className='scrub-bar'
+        draggable='true'
+        onDragStart={handleDragStart}
+        onClick={handleScrub}
+        onDrag={handleScrub} />
+    </div>,
+
+    <i
+      key='skip-previous'
+      className={'icon skip-previous float-left ' + prevClass}
+      onClick={dispatcher('previousTrack')}>
+      skip_previous
+    </i>,
+
+    <i
+      key='play'
+      className='icon play-pause float-left'
+      onClick={dispatcher('playPause')}>
+      {state.playing.isPaused ? 'play_arrow' : 'pause'}
+    </i>,
+
+    <i
+      key='skip-next'
+      className={'icon skip-next float-left ' + nextClass}
+      onClick={dispatcher('nextTrack')}>
+      skip_next
+    </i>,
+
+    <i
+      key='fullscreen'
+      className='icon fullscreen float-right'
+      onClick={dispatcher('toggleFullScreen')}>
+      {state.window.isFullScreen ? 'fullscreen_exit' : 'fullscreen'}
+    </i>
+  ]
+
+  if (state.playing.type === 'video') {
+    // Show closed captions icon
+    elements.push((
+      <i
+        key='subtitles'
+        className={'icon closed-caption float-right ' + captionsClass}
+        onClick={handleSubtitles}>
+        closed_caption
+      </i>
+    ))
+  }
+
+  // If we've detected a Chromecast or AppleTV, the user can play video there
+  const castTypes = ['chromecast', 'airplay', 'dlna']
+  const isCastingAnywhere = castTypes.some(
+    (castType) => state.playing.location.startsWith(castType))
+
+  // Add the cast buttons. Icons for each cast type, connected/disconnected:
+  const buttonIcons = {
+    'chromecast': {true: 'cast_connected', false: 'cast'},
+    'airplay': {true: 'airplay', false: 'airplay'},
+    'dlna': {true: 'tv', false: 'tv'}
+  }
+  castTypes.forEach(function (castType) {
+    // Do we show this button (eg. the Chromecast button) at all?
+    const isCasting = state.playing.location.startsWith(castType)
+    const player = state.devices[castType]
+    if ((!player || player.getDevices().length === 0) && !isCasting) return
+
+    // Show the button. Three options for eg the Chromecast button:
+    let buttonClass, buttonHandler
+    if (isCasting) {
+      // Option 1: we are currently connected to Chromecast. Button stops the cast.
+      buttonClass = 'active'
+      buttonHandler = dispatcher('stopCasting')
+    } else if (isCastingAnywhere) {
+      // Option 2: we are currently connected somewhere else. Button disabled.
+      buttonClass = 'disabled'
+      buttonHandler = undefined
+    } else {
+      // Option 3: we are not connected anywhere. Button opens Chromecast menu.
+      buttonClass = ''
+      buttonHandler = dispatcher('toggleCastMenu', castType)
+    }
+    const buttonIcon = buttonIcons[castType][isCasting]
+
+    elements.push((
+      <i
+        key={castType}
+        className={'icon device float-right ' + buttonClass}
+        onClick={buttonHandler}>
+        {buttonIcon}
+      </i>
+    ))
+  })
+
+  // Render volume slider
+  const volume = state.playing.volume
+  const volumeIcon = 'volume_' + (
+    volume === 0 ? 'off'
+    : volume < 0.3 ? 'mute'
+    : volume < 0.6 ? 'down'
+    : 'up')
+  const volumeStyle = {
+    background: '-webkit-gradient(linear, left top, right top, ' +
+      'color-stop(' + (volume * 100) + '%, #eee), ' +
+      'color-stop(' + (volume * 100) + '%, #727272))'
+  }
+
+  elements.push((
+    <div key='volume' className='volume float-left'>
+      <i
+        className='icon volume-icon float-left'
+        onMouseDown={handleVolumeMute}>
+        {volumeIcon}
+      </i>
+      <input
+        className='volume-slider float-right'
+        type='range' min='0' max='1' step='0.05'
+        value={volume}
+        onChange={handleVolumeScrub}
+        style={volumeStyle} />
+    </div>
+  ))
+
+  // Show video playback progress
+  const currentTimeStr = formatTime(state.playing.currentTime)
+  const durationStr = formatTime(state.playing.duration)
+  elements.push((
+    <span key='time' className='time float-left'>
+      {currentTimeStr} / {durationStr}
+    </span>
+  ))
+
+  // Render playback rate
+  if (state.playing.playbackRate !== 1) {
+    elements.push((
+      <span key='rate' className='rate float-left'>
+        {state.playing.playbackRate}x
+      </span>
+    ))
+  }
+
+  return (
+    <div key='controls' className='controls'
+      onMouseEnter={dispatcher('mediaControlsMouseEnter')}
+      onMouseLeave={dispatcher('mediaControlsMouseLeave')}>
+      {elements}
+      {renderCastOptions(state)}
+      {renderSubtitleOptions(state)}
+    </div>
+  )
+
+  function handleDragStart (e) {
+    // Prevent the cursor from changing, eg to a green + icon on Mac
+    if (e.dataTransfer) {
+      const dt = e.dataTransfer
+      dt.effectAllowed = 'none'
+    }
+  }
+
+  // Handles a click or drag to scrub (jump to another position in the video)
+  function handleScrub (e) {
+    if (!e.clientX) return
+    dispatch('mediaMouseMoved')
+    const windowWidth = document.querySelector('body').clientWidth
+    const fraction = e.clientX / windowWidth
+    const position = fraction * state.playing.duration /* seconds */
+    dispatch('skipTo', position)
+  }
+
+  // Handles volume muting and Unmuting
+  function handleVolumeMute (e) {
+    if (state.playing.volume === 0.0) {
+      dispatch('setVolume', 1.0)
+    } else {
+      dispatch('setVolume', 0.0)
+    }
+  }
+
+  // Handles volume slider scrub
+  function handleVolumeScrub (e) {
+    dispatch('setVolume', e.target.value)
+  }
+
+  function handleSubtitles (e) {
+    if (!state.playing.subtitles.tracks.length || e.ctrlKey || e.metaKey) {
+      // if no subtitles available select it
+      dispatch('openSubtitles')
+    } else {
+      dispatch('toggleSubtitlesMenu')
+    }
+  }
+}
+
+// Renders the loading bar. Shows which parts of the torrent are loaded, which
+// can be 'spongey' / non-contiguous
+function renderLoadingBar (state) {
+  if (config.IS_TEST) return // Don't integration test the loading bar. Screenshots won't match.
+
+  const torrentSummary = state.getPlayingTorrentSummary()
+  if (!torrentSummary.progress) {
+    return null
+  }
+
+  // Find all contiguous parts of the torrent which are loaded
+  const prog = torrentSummary.progress
+  const fileProg = prog.files[state.playing.fileIndex]
+
+  if (!fileProg) return null
+
+  const parts = []
+  let lastPiecePresent = false
+  for (let i = fileProg.startPiece; i <= fileProg.endPiece; i++) {
+    const partPresent = Bitfield.prototype.get.call(prog.bitfield, i)
+    if (partPresent && !lastPiecePresent) {
+      parts.push({start: i - fileProg.startPiece, count: 1})
+    } else if (partPresent) {
+      parts[parts.length - 1].count++
+    }
+    lastPiecePresent = partPresent
+  }
+
+  // Output some bars to show which parts of the file are loaded
+  const loadingBarElems = parts.map(function (part, i) {
+    const style = {
+      left: (100 * part.start / fileProg.numPieces) + '%',
+      width: (100 * part.count / fileProg.numPieces) + '%'
+    }
+
+    return (<div key={i} className='loading-bar-part' style={style} />)
+  })
+
+  return (<div key='loading-bar' className='loading-bar'>{loadingBarElems}</div>)
+}
+
+// Returns the CSS background-image string for a poster image + dark vignette
+function cssBackgroundImagePoster (state) {
+  const torrentSummary = state.getPlayingTorrentSummary()
+  const posterPath = TorrentSummary.getPosterPath(torrentSummary)
+  if (!posterPath) return ''
+  return cssBackgroundImageDarkGradient() + `, url('${posterPath}')`
+}
+
+function cssBackgroundImageDarkGradient () {
+  return 'radial-gradient(circle at center, ' +
+    'rgba(0,0,0,0.4) 0%, rgba(0,0,0,1) 100%)'
+}
+
+function formatTime (time) {
+  if (typeof time !== 'number' || Number.isNaN(time)) {
+    return '0:00'
+  }
+
+  let hours = Math.floor(time / 3600)
+  let minutes = Math.floor(time % 3600 / 60)
+  if (hours > 0) {
+    minutes = zeroFill(2, minutes)
+  }
+  let seconds = zeroFill(2, Math.floor(time % 60))
+
+  return (hours > 0 ? hours + ':' : '') + minutes + ':' + seconds
+}