Fix scrubbing bug: don't skip to 0s after drag

Sometimes, while casting, WT thinks the video isn't visible and the play/pause toggle stops working

AUTHORS.md

@@ -10,7 +10,7 @@
 - Romain Beaumont <romain.rom1@gmail.com>
 - Dan Flettre <fletd01@yahoo.com>
 - Liam Gray <liam.r.gray@gmail.com>
-- grunjol <grunjol@argenteam.net>
+- grunjol <grunjol@users.noreply.github.com>
 - Rémi Jouannet <remijouannet@users.noreply.github.com>
 - Evan Miller <miller.evan815@gmail.com>
 - Alex <alxmorais8@msn.com>
@@ -21,5 +21,10 @@
 - 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>
+- Adam Gotlib <gotlib.adam+dev@gmail.com>
+- Rémi Jouannet <remijouannet@gmail.com>
 
 #### Generated by bin/update-authors.sh.

CHANGELOG.md

@@ -1,15 +1,123 @@
 # WebTorrent Desktop Version History
 
+## 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
+- 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 a `instant.io` links (#559)
+- Add support for pasting `instant.io` links (#559)
 - Add announcement feature
 
 ### Changed

README.md

@@ -81,6 +81,12 @@ brew install wine
 
 (Requires the [Homebrew](http://brew.sh/) package manager.)
 
+### 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 personally identifying information, nor does it track which swarms you join.
+
 ### Code Style
 
 [![js-standard-style](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)

bin/check-deps.js

@@ -3,49 +3,97 @@
 var fs = require('fs')
 var cp = require('child_process')
 
-var BUILT_IN_DEPS = ['child_process', 'electron', 'fs', 'os', 'path', 'screen']
+// We can't use `builtin-modules` here since our TravisCI
+// setup expects this file to run with no dependencies
+var BUILT_IN_NODE_MODULES = [
+  'assert',
+  'buffer',
+  'child_process',
+  'cluster',
+  'console',
+  'constants',
+  'crypto',
+  'dgram',
+  'dns',
+  'domain',
+  'events',
+  'fs',
+  'http',
+  'https',
+  'module',
+  'net',
+  'os',
+  'path',
+  'process',
+  'punycode',
+  'querystring',
+  'readline',
+  'repl',
+  'stream',
+  'string_decoder',
+  'timers',
+  'tls',
+  'tty',
+  'url',
+  'util',
+  'v8',
+  'vm',
+  'zlib'
+]
+
+var BUILT_IN_ELECTRON_MODULES = [ 'electron' ]
+
+var BUILT_IN_DEPS = [].concat(BUILT_IN_NODE_MODULES, BUILT_IN_ELECTRON_MODULES)
+
 var EXECUTABLE_DEPS = ['gh-release', 'standard']
 
 main()
 
-// Scans our codebase and package.json for missing or unused dependencies
-// Process returns 0 on success, prints a message and returns 1 on failure
+// Scans codebase for missing or unused dependencies. Exits with code 0 on success.
 function main () {
   if (process.platform === 'win32') {
-    console.log('Sorry, check-deps only works on Mac and Linux')
+    console.error('Sorry, check-deps only works on Mac and Linux')
     return
   }
 
-  var jsDeps = findJSDeps()
+  var usedDeps = findUsedDeps()
   var packageDeps = findPackageDeps()
 
-  var missingDeps = jsDeps.filter((dep) =>
-    packageDeps.indexOf(dep) < 0 &&
-    BUILT_IN_DEPS.indexOf(dep) < 0)
-  var unusedDeps = packageDeps.filter((dep) =>
-    jsDeps.indexOf(dep) < 0 &&
-    EXECUTABLE_DEPS.indexOf(dep) < 0)
+  var missingDeps = usedDeps.filter(
+    (dep) => !includes(packageDeps, dep) && !includes(BUILT_IN_DEPS, dep)
+  )
+  var unusedDeps = packageDeps.filter(
+    (dep) => !includes(usedDeps, dep) && !includes(EXECUTABLE_DEPS, dep)
+  )
 
-  if (missingDeps.length > 0) console.log('Missing package dependencies: ' + missingDeps)
-  if (unusedDeps.length > 0) console.log('Unused package dependencies: ' + unusedDeps)
-
-  if (missingDeps.length + unusedDeps.length > 0) process.exit(1)
-
-  console.log('Lookin good!')
+  if (missingDeps.length > 0) {
+    console.error('Missing package dependencies: ' + missingDeps)
+  }
+  if (unusedDeps.length > 0) {
+    console.error('Unused package dependencies: ' + unusedDeps)
+  }
+  if (missingDeps.length + unusedDeps.length > 0) {
+    process.exitCode = 1
+  }
 }
 
-// Finds all dependencies, required, optional, or dev, in package.json
+// Finds all dependencies specified in `package.json`
 function findPackageDeps () {
   var pkg = JSON.parse(fs.readFileSync('package.json', 'utf8'))
-  var requiredDeps = Object.keys(pkg.dependencies)
+
+  var deps = Object.keys(pkg.dependencies)
   var devDeps = Object.keys(pkg.devDependencies)
   var optionalDeps = Object.keys(pkg.optionalDependencies)
 
-  return [].concat(requiredDeps, devDeps, optionalDeps)
+  return [].concat(deps, devDeps, optionalDeps)
 }
 
-// Finds all dependencies required() in the code
-function findJSDeps () {
+// Finds all dependencies that used with `require()`
+function findUsedDeps () {
   var stdout = cp.execSync('./bin/list-deps.sh')
   return stdout.toString().trim().split('\n')
 }
+
+function includes (arr, elem) {
+  return arr.indexOf(elem) >= 0
+}

bin/cmd.js

@@ -6,5 +6,5 @@ var path = require('path')
 
 var child = cp.spawn(electron, [path.join(__dirname, '..')], {stdio: 'inherit'})
 child.on('close', function (code) {
-  process.exit(code)
+  process.exitCode = code
 })

bin/open-config.js

@@ -2,7 +2,5 @@
 
 var config = require('../config')
 var open = require('open')
-var path = require('path')
 
-var configPath = path.join(config.CONFIG_PATH, 'config.json')
-open(configPath)
+open(config.CONFIG_PATH)

bin/package.js

@@ -206,6 +206,12 @@ 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' ]
       }
     ]
 
@@ -327,11 +333,11 @@ function buildDarwin (cb) {
       }
 
       var dmg = appDmg(dmgOpts)
-      dmg.on('error', cb)
+      dmg.once('error', cb)
       dmg.on('progress', function (info) {
         if (info.type === 'step-begin') console.log(info.title + '...')
       })
-      dmg.on('finish', function (info) {
+      dmg.once('finish', function (info) {
         console.log('OS X: Created dmg.')
         cb(null)
       })
@@ -460,7 +466,7 @@ function buildLinux (cb) {
       info: {
         arch: destArch === 'x64' ? 'amd64' : 'i386',
         targetDir: DIST_PATH,
-        depends: 'libc6 (>= 2.4)',
+        depends: 'gconf2, libgtk2.0-0, libnss3, libxss1',
         scripts: {
           postinst: path.join(config.STATIC_PATH, 'linux', 'postinst'),
           prerm: path.join(config.STATIC_PATH, 'linux', 'prerm')

bin/release-_post.sh

@@ -1,6 +1,7 @@
 #!/bin/sh
 set -e
 
+npm run update-authors
 git diff --exit-code
 npm run package -- --sign
 git push

bin/release-_pre.sh

@@ -2,8 +2,6 @@
 set -e
 
 git pull
-npm run update-authors
-git diff --exit-code
 rm -rf node_modules/
 npm install
 npm dedupe

bin/update-authors.sh

@@ -10,7 +10,6 @@ while (<>) {
   next if $seen{$_};
   next if /<support\@greenkeeper.io>/;
   next if /<ungoldman\@gmail.com>/;
-  next if /<grunjol\@users.noreply.github.com>/;
   next if /<dc\@DCs-MacBook.local>/;
   next if /<rolandoguedes\@gmail.com>/;
   $seen{$_} = push @authors, "- ", $_;

config.js

@@ -10,6 +10,9 @@ var PORTABLE_PATH = path.join(path.dirname(process.execPath), 'Portable Settings
 
 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 © 2014-2016 ' + APP_TEAM,
   APP_FILE_ICON: path.join(__dirname, 'static', 'WebTorrentFile'),
@@ -19,16 +22,40 @@ module.exports = {
   APP_VERSION: APP_VERSION,
   APP_WINDOW_TITLE: APP_NAME + ' (BETA)',
 
-  AUTO_UPDATE_URL: 'https://webtorrent.io/desktop/update',
-
-  CRASH_REPORT_URL: 'https://webtorrent.io/desktop/crash-report',
-
   CONFIG_PATH: getConfigPath(),
-  CONFIG_POSTER_PATH: path.join(getConfigPath(), 'Posters'),
-  CONFIG_TORRENT_PATH: path.join(getConfigPath(), 'Torrents'),
+
+  DEFAULT_TORRENTS: [
+    {
+      name: 'Big Buck Bunny',
+      posterFileName: 'bigBuckBunny.jpg',
+      torrentFileName: 'bigBuckBunny.torrent'
+    },
+    {
+      name: 'Cosmos Laundromat (Preview)',
+      posterFileName: 'cosmosLaundromat.jpg',
+      torrentFileName: 'cosmosLaundromat.torrent'
+    },
+    {
+      name: 'Sintel',
+      posterFileName: 'sintel.jpg',
+      torrentFileName: 'sintel.torrent'
+    },
+    {
+      name: 'Tears of Steel',
+      posterFileName: 'tearsOfSteel.jpg',
+      torrentFileName: 'tearsOfSteel.torrent'
+    },
+    {
+      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',
@@ -38,8 +65,10 @@ module.exports = {
   IS_PORTABLE: isPortable(),
   IS_PRODUCTION: isProduction(),
 
+  POSTER_PATH: path.join(getConfigPath(), 'Posters'),
   ROOT_PATH: __dirname,
   STATIC_PATH: path.join(__dirname, 'static'),
+  TORRENT_PATH: path.join(getConfigPath(), 'Torrents'),
 
   WINDOW_ABOUT: 'file://' + path.join(__dirname, 'renderer', 'about.html'),
   WINDOW_MAIN: 'file://' + path.join(__dirname, 'renderer', 'main.html'),
@@ -57,6 +86,22 @@ function getConfigPath () {
   }
 }
 
+function getDefaultDownloadPath () {
+  if (!process || !process.type) {
+    return ''
+  }
+
+  if (isPortable()) {
+    return path.join(getConfigPath(), 'Downloads')
+  }
+
+  var electron = require('electron')
+
+  return process.type === 'renderer'
+    ? electron.remote.app.getPath('downloads')
+    : electron.app.getPath('downloads')
+}
+
 function isPortable () {
   try {
     return process.platform === 'win32' && isProduction() && !!fs.statSync(PORTABLE_PATH)

main/announcement.js

@@ -3,7 +3,6 @@ module.exports = {
 }
 
 var electron = require('electron')
-var get = require('simple-get')
 
 var config = require('../config')
 var log = require('./log')
@@ -12,27 +11,47 @@ var 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 () {
-  get.concat(ANNOUNCEMENT_URL, function (err, res, data) {
-    if (err) return log('failed to retrieve remote message')
-    if (res.statusCode !== 200) return log('no remote message')
-
-    try {
-      data = JSON.parse(data.toString())
-    } catch (err) {
-      data = {
-        title: 'WebTorrent Desktop Announcement',
-        message: 'WebTorrent Desktop Announcement',
-        detail: data.toString()
-      }
-    }
-
-    electron.dialog.showMessageBox({
-      type: 'info',
-      buttons: ['OK'],
-      title: data.title,
-      message: data.message,
-      detail: data.detail
-    }, function () {})
-  })
+  var 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 exists')
+
+  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 () {}

main/dialog.js

@@ -0,0 +1,122 @@
+module.exports = {
+  openSeedFile,
+  openSeedDirectory,
+  openTorrentFile,
+  openTorrentAddress,
+  openFiles
+}
+
+var electron = require('electron')
+
+var config = require('../config')
+var log = require('./log')
+var windows = require('./windows')
+
+/**
+ * Show open dialog to create a single-file torrent.
+ */
+function openSeedFile () {
+  if (!windows.main.win) return
+  log('openSeedFile')
+  var opts = {
+    title: 'Select a file for the torrent.',
+    properties: [ 'openFile' ]
+  }
+  setTitle(opts.title)
+  electron.dialog.showOpenDialog(windows.main.win, opts, function (selectedPaths) {
+    resetTitle()
+    if (!Array.isArray(selectedPaths)) return
+    windows.main.dispatch('showCreateTorrent', selectedPaths)
+  })
+}
+
+/*
+ * 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')
+  var 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' ]
+    }
+  setTitle(opts.title)
+  electron.dialog.showOpenDialog(windows.main.win, opts, function (selectedPaths) {
+    resetTitle()
+    if (!Array.isArray(selectedPaths)) return
+    windows.main.dispatch('showCreateTorrent', selectedPaths)
+  })
+}
+
+/*
+ * 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')
+  var 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')
+  var 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 OS X, so the window title is used instead.
+ */
+function setTitle (title) {
+  if (process.platform === 'darwin') {
+    windows.main.dispatch('setTitle', title)
+  }
+}
+
+function resetTitle () {
+  setTitle(config.APP_WINDOW_TITLE)
+}

main/dock.js

@@ -0,0 +1,59 @@
+module.exports = {
+  downloadFinished,
+  init,
+  setBadge
+}
+
+var electron = require('electron')
+
+var app = electron.app
+
+var dialog = require('./dialog')
+var log = require('./log')
+
+/**
+ * Add a right-click menu to the dock icon. (OS X)
+ */
+function init () {
+  if (!app.dock) return
+  var menu = electron.Menu.buildFromTemplate(getMenuTemplate())
+  app.dock.setMenu(menu)
+}
+
+/**
+ * Bounce the Downloads stack if `path` is inside the Downloads folder. (OS X)
+ */
+function downloadFinished (path) {
+  if (!app.dock) return
+  log(`downloadFinished: ${path}`)
+  app.dock.downloadFinished(path)
+}
+
+/**
+ * Display string in dock badging area. (OS X)
+ */
+function setBadge (text) {
+  if (!app.dock) return
+  log(`setBadge: ${text}`)
+  app.dock.setBadge(String(text))
+}
+
+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()
+    }
+  ]
+}

main/handlers.js

@@ -3,9 +3,8 @@ module.exports = {
   uninstall
 }
 
-var path = require('path')
-
 var config = require('../config')
+var path = require('path')
 
 function install () {
   if (process.platform === 'darwin') {
@@ -35,11 +34,12 @@ function installDarwin () {
   var electron = require('electron')
   var app = electron.app
 
-  // On OS X, only protocols that are listed in Info.plist can be set as the default
-  // handler at runtime.
+  // On OS X, 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 () {}
@@ -55,10 +55,28 @@ function installWin32 () {
 
   var log = require('./log')
 
-  var iconPath = path.join(process.resourcesPath, 'app.asar.unpacked', 'static', 'WebTorrentFile.ico')
-
-  registerProtocolHandlerWin32('magnet', 'URL:BitTorrent Magnet URL', iconPath, EXEC_COMMAND)
-  registerFileHandlerWin32('.torrent', 'io.webtorrent.torrent', 'BitTorrent Document', iconPath, EXEC_COMMAND)
+  var 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:
@@ -190,6 +208,7 @@ function uninstallWin32 () {
   var Registry = require('winreg')
 
   unregisterProtocolHandlerWin32('magnet', EXEC_COMMAND)
+  unregisterProtocolHandlerWin32('stream-magnet', EXEC_COMMAND)
   unregisterFileHandlerWin32('.torrent', 'io.webtorrent.torrent', EXEC_COMMAND)
 
   function unregisterProtocolHandlerWin32 (protocol, command) {
@@ -265,7 +284,9 @@ function installLinux () {
   installIconFile()
 
   function installDesktopFile () {
-    var templatePath = path.join(config.STATIC_PATH, 'linux', 'webtorrent-desktop.desktop')
+    var templatePath = path.join(
+      config.STATIC_PATH, 'linux', 'webtorrent-desktop.desktop'
+    )
     fs.readFile(templatePath, 'utf8', writeDesktopFile)
   }
 

main/index.js

@@ -8,11 +8,12 @@ var ipcMain = electron.ipcMain
 var announcement = require('./announcement')
 var config = require('../config')
 var crashReporter = require('../crash-reporter')
+var dialog = require('./dialog')
+var dock = require('./dock')
 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 tray = require('./tray')
 var updater = require('./updater')
@@ -54,23 +55,29 @@ function init () {
 
   ipc.init()
 
-  app.on('will-finish-launching', function () {
+  app.once('will-finish-launching', function () {
     crashReporter.init()
   })
 
   app.on('ready', function () {
     isReady = true
 
-    windows.createMainWindow()
-    windows.createWebTorrentHiddenWindow()
+    windows.main.init()
+    windows.webtorrent.init()
     menu.init()
-    shortcuts.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)
+      var errJSON = {message: err.message, stack: err.stack}
+      windows.main.dispatch('uncaughtError', 'main', errJSON)
+    })
   })
 
-  app.on('ipcReady', function () {
+  app.once('ipcReady', function () {
     log('Command line args:', argv)
     processArgv(argv)
     console.timeEnd('init')
@@ -81,20 +88,24 @@ function init () {
 
     app.isQuitting = true
     e.preventDefault()
-    windows.main.send('dispatch', 'saveState') /* try to save state on exit */
+    windows.main.dispatch('saveState') // try to save state on exit
     ipcMain.once('savedState', () => app.quit())
-    setTimeout(() => app.quit(), 2000) /* quit after 2 secs, at most */
+    setTimeout(() => {
+      console.error('Saving state took too long. Quitting.')
+      app.quit()
+    }, 2000) // quit after 2 secs, at most
   })
 
   app.on('activate', function () {
-    if (isReady) windows.createMainWindow()
+    if (isReady) windows.main.show()
   })
 }
 
 function delayedInit () {
   announcement.init()
-  tray.init()
+  dock.init()
   handlers.install()
+  tray.init()
   updater.init()
 }
 
@@ -102,13 +113,12 @@ 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.
+    // 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)
+    setTimeout(() => windows.main.show(), 100)
+
+    processArgv([ torrentId ])
   } else {
     argv.push(torrentId)
   }
@@ -119,7 +129,7 @@ function onAppOpen (newArgv) {
 
   if (app.ipcReady) {
     log('Second app instance opened, but was prevented:', newArgv)
-    windows.focusWindow(windows.main)
+    windows.main.show()
 
     processArgv(newArgv)
   } else {
@@ -132,18 +142,22 @@ function sliceArgv (argv) {
 }
 
 function processArgv (argv) {
+  var torrentIds = []
   argv.forEach(function (arg) {
     if (arg === '-n') {
-      menu.showOpenSeedFiles()
+      dialog.openSeedDirectory()
     } else if (arg === '-o') {
-      menu.showOpenTorrentFile()
+      dialog.openTorrentFile()
     } else if (arg === '-u') {
-      menu.showOpenTorrentAddress()
+      dialog.openTorrentAddress()
     } else if (arg.startsWith('-psn')) {
       // Ignore OS X launchd "process serial number" argument
-      // More: https://github.com/feross/webtorrent-desktop/issues/214
+      // Issue: https://github.com/feross/webtorrent-desktop/issues/214
     } else {
-      windows.main.send('dispatch', 'onOpen', arg)
+      torrentIds.push(arg)
     }
   })
+  if (torrentIds.length > 0) {
+    windows.main.dispatch('onOpen', torrentIds)
+  }
 }

main/ipc.js

@@ -5,31 +5,33 @@ module.exports = {
 var electron = require('electron')
 
 var app = electron.app
-var ipcMain = electron.ipcMain
 
+var dialog = require('./dialog')
+var dock = require('./dock')
 var log = require('./log')
 var menu = require('./menu')
-var windows = require('./windows')
+var powerSaveBlocker = require('./power-save-blocker')
+var shell = require('./shell')
 var shortcuts = require('./shortcuts')
 var vlc = require('./vlc')
+var windows = require('./windows')
+var thumbar = require('./thumbar')
 
-// has to be a number, not a boolean, and undefined throws an error
-var powerSaveBlockerId = 0
-
-// messages from the main process, to be sent once the WebTorrent process starts
+// Messages from the main process, to be sent once the WebTorrent process starts
 var messageQueueMainToWebTorrent = []
 
 // holds a ChildProcess while we're playing a video in VLC, null otherwise
 var vlcProcess
 
 function init () {
-  ipcMain.on('ipcReady', function (e) {
-    windows.main.show()
+  var ipc = electron.ipcMain
+
+  ipc.once('ipcReady', function (e) {
     app.ipcReady = true
     app.emit('ipcReady')
   })
 
-  ipcMain.on('ipcReadyWebTorrent', function (e) {
+  ipc.once('ipcReadyWebTorrent', function (e) {
     app.ipcReadyWebTorrent = true
     log('sending %d queued messages from the main win to the webtorrent window',
       messageQueueMainToWebTorrent.length)
@@ -39,113 +41,120 @@ function init () {
     })
   })
 
-  ipcMain.on('showOpenTorrentFile', menu.showOpenTorrentFile)
+  /**
+   * Dialog
+   */
 
-  ipcMain.on('setBounds', function (e, bounds, maximize) {
-    setBounds(bounds, maximize)
-  })
+  ipc.on('openTorrentFile', () => dialog.openTorrentFile())
+  ipc.on('openFiles', () => dialog.openFiles())
 
-  ipcMain.on('setAspectRatio', function (e, aspectRatio) {
-    setAspectRatio(aspectRatio)
-  })
+  /**
+   * Dock
+   */
 
-  ipcMain.on('setBadge', function (e, text) {
-    setBadge(text)
-  })
+  ipc.on('setBadge', (e, ...args) => dock.setBadge(...args))
+  ipc.on('downloadFinished', (e, ...args) => dock.downloadFinished(...args))
 
-  ipcMain.on('setProgress', function (e, progress) {
-    setProgress(progress)
-  })
+  /**
+   * Events
+   */
 
-  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('open item: ' + path)
-    electron.shell.openItem(path)
-  })
-
-  ipcMain.on('showItemInFolder', function (e, path) {
-    log('show item in folder: ' + path)
-    electron.shell.showItemInFolder(path)
-  })
-
-  ipcMain.on('blockPowerSave', blockPowerSave)
-
-  ipcMain.on('unblockPowerSave', unblockPowerSave)
-
-  ipcMain.on('onPlayerOpen', function () {
+  ipc.on('onPlayerOpen', function () {
     menu.onPlayerOpen()
-    shortcuts.onPlayerOpen()
+    powerSaveBlocker.enable()
+    shortcuts.enable()
+    thumbar.enable()
   })
 
-  ipcMain.on('onPlayerClose', function () {
+  ipc.on('onPlayerClose', function () {
     menu.onPlayerClose()
-    shortcuts.onPlayerOpen()
+    powerSaveBlocker.disable()
+    shortcuts.disable()
+    thumbar.disable()
   })
 
-  ipcMain.on('focusWindow', function (e, windowName) {
-    windows.focusWindow(windows[windowName])
+  ipc.on('onPlayerPlay', function () {
+    powerSaveBlocker.enable()
+    thumbar.onPlayerPlay()
   })
 
-  ipcMain.on('downloadFinished', function (e, filePath) {
-    if (app.dock) {
-      // Bounces the Downloads stack if the filePath is inside the Downloads folder.
-      app.dock.downloadFinished(filePath)
-    }
+  ipc.on('onPlayerPause', function () {
+    powerSaveBlocker.disable()
+    thumbar.onPlayerPause()
   })
 
-  ipcMain.on('checkForVLC', function (e) {
+  /**
+   * Shell
+   */
+
+  ipc.on('openItem', (e, ...args) => shell.openItem(...args))
+  ipc.on('showItemInFolder', (e, ...args) => shell.showItemInFolder(...args))
+  ipc.on('moveItemToTrash', (e, ...args) => shell.moveItemToTrash(...args))
+
+  /**
+   * Windows: Main
+   */
+
+  var 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))
+
+  /**
+   * VLC
+   * TODO: Move most of this code to vlc.js
+   */
+
+  ipc.on('checkForVLC', function (e) {
     vlc.checkForVLC(function (isInstalled) {
       windows.main.send('checkForVLC', isInstalled)
     })
   })
 
-  ipcMain.on('vlcPlay', function (e, url) {
+  ipc.on('vlcPlay', function (e, url) {
     var args = ['--play-and-exit', '--video-on-top', '--no-video-title-show', '--quiet', url]
-    console.log('Running vlc ' + args.join(' '))
+    log('Running vlc ' + args.join(' '))
 
     vlc.spawn(args, function (err, proc) {
-      if (err) return windows.main.send('dispatch', 'vlcNotFound')
+      if (err) return windows.main.dispatch('vlcNotFound')
       vlcProcess = proc
 
       // If it works, close the modal after a second
       var closeModalTimeout = setTimeout(() =>
-        windows.main.send('dispatch', 'exitModal'), 1000)
+        windows.main.dispatch('exitModal'), 1000)
 
       vlcProcess.on('close', function (code) {
         clearTimeout(closeModalTimeout)
         if (!vlcProcess) return // Killed
-        console.log('VLC exited with code ', code)
+        log('VLC exited with code ', code)
         if (code === 0) {
-          windows.main.send('dispatch', 'backToList')
+          windows.main.dispatch('backToList')
         } else {
-          windows.main.send('dispatch', 'vlcNotFound')
+          windows.main.dispatch('vlcNotFound')
         }
         vlcProcess = null
       })
 
       vlcProcess.on('error', function (e) {
-        console.log('VLC error', e)
+        log('VLC error', e)
       })
     })
   })
 
-  ipcMain.on('vlcQuit', function () {
+  ipc.on('vlcQuit', function () {
     if (!vlcProcess) return
-    console.log('Killing VLC, pid ' + vlcProcess.pid)
+    log('Killing VLC, pid ' + vlcProcess.pid)
     vlcProcess.kill('SIGKILL') // kill -9
     vlcProcess = null
   })
 
   // Capture all events
-  var oldEmit = ipcMain.emit
-  ipcMain.emit = function (name, e, ...args) {
+  var 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') {
@@ -168,82 +177,6 @@ function init () {
     }
 
     // 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))
-    if (bounds.x === null && bounds.y === null) {
-      // X and Y not specified? By default, center on current screen
-      var scr = electron.screen.getDisplayMatching(windows.main.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))
-    }
-    windows.main.setBounds(bounds, true)
-  } else {
-    log('setBounds: not setting bounds because of window maximization')
-  }
-}
-
-function setAspectRatio (aspectRatio) {
-  log('setAspectRatio %o', aspectRatio)
-  if (windows.main) {
-    windows.main.setAspectRatio(aspectRatio)
-  }
-}
-
-// 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 () {
-  powerSaveBlockerId = electron.powerSaveBlocker.start('prevent-display-sleep')
-  log('blockPowerSave %d', powerSaveBlockerId)
-}
-
-function unblockPowerSave () {
-  if (electron.powerSaveBlocker.isStarted(powerSaveBlockerId)) {
-    electron.powerSaveBlocker.stop(powerSaveBlockerId)
-    log('unblockPowerSave %d', powerSaveBlockerId)
+    oldEmit.call(ipc, name, e, ...args)
   }
 }

main/log.js

@@ -9,7 +9,6 @@ module.exports.error = error
  */
 
 var electron = require('electron')
-
 var windows = require('./windows')
 
 var app = electron.app
@@ -18,7 +17,7 @@ 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))
   }
 }

main/menu.js

@@ -2,15 +2,10 @@ module.exports = {
   init,
   onPlayerClose,
   onPlayerOpen,
+  onToggleAlwaysOnTop,
   onToggleFullScreen,
-  onWindowHide,
-  onWindowShow,
-
-  // TODO: move these out of menu.js -- they don't belong here
-  showOpenSeedFiles,
-  showOpenTorrentAddress,
-  showOpenTorrentFile,
-  toggleFullScreen
+  onWindowBlur,
+  onWindowFocus
 }
 
 var electron = require('electron')
@@ -18,207 +13,67 @@ var electron = require('electron')
 var app = electron.app
 
 var config = require('../config')
-var log = require('./log')
+var dialog = require('./dialog')
+var shell = require('./shell')
 var windows = require('./windows')
 
-var appMenu
+var menu
 
 function init () {
-  appMenu = electron.Menu.buildFromTemplate(getAppMenuTemplate())
-  electron.Menu.setApplicationMenu(appMenu)
-
-  if (app.dock) {
-    var dockMenu = electron.Menu.buildFromTemplate(getDockMenuTemplate())
-    app.dock.setMenu(dockMenu)
-  }
-}
-
-function toggleFullScreen (flag) {
-  log('toggleFullScreen %s', flag)
-  if (windows.main && windows.main.isVisible()) {
-    flag = flag != null ? flag : !windows.main.isFullScreen()
-    if (flag) {
-      // Allows the window to use the full screen in fullscreen mode (OS X).
-      windows.main.setAspectRatio(0)
-    }
-    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 toggleDevTools () {
-  log('toggleDevTools')
-  if (windows.main) {
-    windows.main.toggleDevTools()
-  }
-}
-
-function showWebTorrentWindow () {
-  log('showWebTorrentWindow')
-  windows.webtorrent.show()
-  windows.webtorrent.webContents.openDevTools({ detach: true })
-}
-
-function playPause () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'playPause')
-  }
-}
-
-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 openSubtitles () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'openSubtitles')
-  }
-}
-
-function skipForward () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'skip', 1)
-  }
-}
-
-function skipBack () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'skip', -1)
-  }
-}
-
-function increasePlaybackRate () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'changePlaybackRate', 1)
-  }
-}
-
-function decreasePlaybackRate () {
-  if (windows.main) {
-    windows.main.send('dispatch', 'changePlaybackRate', -1)
-  }
-}
-
-// Open the preferences window
-function showPreferences () {
-  windows.main.send('dispatch', 'preferences')
-}
-
-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 () {
-  log('onPlayerOpen')
-  getMenuItem('Play/Pause').enabled = true
-  getMenuItem('Increase Volume').enabled = true
-  getMenuItem('Decrease Volume').enabled = true
-  getMenuItem('Add Subtitles File...').enabled = true
-  getMenuItem('Step Forward').enabled = true
-  getMenuItem('Step Backward').enabled = true
-  getMenuItem('Increase Speed').enabled = true
-  getMenuItem('Decrease Speed').enabled = true
+  menu = electron.Menu.buildFromTemplate(getMenuTemplate())
+  electron.Menu.setApplicationMenu(menu)
 }
 
 function onPlayerClose () {
-  log('onPlayerClose')
   getMenuItem('Play/Pause').enabled = false
   getMenuItem('Increase Volume').enabled = false
   getMenuItem('Decrease Volume').enabled = false
-  getMenuItem('Add Subtitles File...').enabled = false
   getMenuItem('Step Forward').enabled = false
   getMenuItem('Step Backward').enabled = false
   getMenuItem('Increase Speed').enabled = false
   getMenuItem('Decrease Speed').enabled = false
+  getMenuItem('Add Subtitles File...').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 onPlayerOpen () {
+  getMenuItem('Play/Pause').enabled = true
+  getMenuItem('Increase Volume').enabled = true
+  getMenuItem('Decrease Volume').enabled = true
+  getMenuItem('Step Forward').enabled = true
+  getMenuItem('Step Backward').enabled = true
+  getMenuItem('Increase Speed').enabled = true
+  getMenuItem('Decrease Speed').enabled = true
+  getMenuItem('Add Subtitles File...').enabled = true
+}
+
+function onToggleAlwaysOnTop (flag) {
+  getMenuItem('Float on Top').checked = flag
+}
+
+function onToggleFullScreen (flag) {
+  getMenuItem('Full Screen').checked = flag
+}
+
+function onWindowBlur () {
+  getMenuItem('Full Screen').enabled = false
+  getMenuItem('Float on Top').enabled = false
+}
+
+function onWindowFocus () {
+  getMenuItem('Full Screen').enabled = true
+  getMenuItem('Float on Top').enabled = true
 }
 
 function getMenuItem (label) {
-  for (var i = 0; i < appMenu.items.length; i++) {
-    var menuItem = appMenu.items[i].submenu.items.find(function (item) {
+  for (var i = 0; i < menu.items.length; i++) {
+    var menuItem = menu.items[i].submenu.items.find(function (item) {
       return item.label === label
     })
     if (menuItem) return menuItem
   }
 }
 
-// Prompts the user for a file, then creates a torrent. Only allows a single file
-// selection.
-function showOpenSeedFile () {
-  electron.dialog.showOpenDialog({
-    title: 'Select a file for the torrent file.',
-    properties: [ 'openFile' ]
-  }, function (selectedPaths) {
-    if (!Array.isArray(selectedPaths)) return
-    var selectedPath = selectedPaths[0]
-    windows.main.send('dispatch', 'showCreateTorrent', selectedPath)
-  })
-}
-
-// Prompts the user for a file or directory, then creates a torrent. Only allows a single
-// selection. To create a multi-file torrent, the user must select a directory.
-function showOpenSeedFiles () {
-  electron.dialog.showOpenDialog({
-    title: 'Select a file or folder for the torrent file.',
-    properties: [ 'openFile', 'openDirectory' ]
-  }, function (selectedPaths) {
-    if (!Array.isArray(selectedPaths)) return
-    var selectedPath = selectedPaths[0]
-    windows.main.send('dispatch', 'showCreateTorrent', selectedPath)
-  })
-}
-
-// 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 (selectedPaths) {
-    if (!Array.isArray(selectedPaths)) return
-    selectedPaths.forEach(function (selectedPath) {
-      windows.main.send('dispatch', 'addTorrent', selectedPath)
-    })
-  })
-}
-
-// Prompts the user for the URL of a torrent file, then downloads and adds it
-function showOpenTorrentAddress () {
-  windows.main.send('showOpenTorrentAddress')
-}
-
-function getAppMenuTemplate () {
+function getMenuTemplate () {
   var template = [
     {
       label: 'File',
@@ -228,17 +83,17 @@ function getAppMenuTemplate () {
             ? 'Create New Torrent...'
             : 'Create New Torrent from Folder...',
           accelerator: 'CmdOrCtrl+N',
-          click: showOpenSeedFiles
+          click: () => dialog.openSeedDirectory()
         },
         {
           label: 'Open Torrent File...',
           accelerator: 'CmdOrCtrl+O',
-          click: showOpenTorrentFile
+          click: () => dialog.openTorrentFile()
         },
         {
           label: 'Open Torrent Address...',
           accelerator: 'CmdOrCtrl+U',
-          click: showOpenTorrentAddress
+          click: () => dialog.openTorrentAddress()
         },
         {
           type: 'separator'
@@ -281,7 +136,7 @@ function getAppMenuTemplate () {
         {
           label: 'Preferences',
           accelerator: 'CmdOrCtrl+,',
-          click: () => showPreferences()
+          click: () => windows.main.dispatch('preferences')
         }
       ]
     },
@@ -294,12 +149,20 @@ function getAppMenuTemplate () {
           accelerator: process.platform === 'darwin'
             ? 'Ctrl+Command+F'
             : 'F11',
-          click: () => toggleFullScreen()
+          click: () => windows.main.toggleFullScreen()
         },
         {
           label: 'Float on Top',
           type: 'checkbox',
-          click: () => toggleFloatOnTop()
+          click: () => windows.main.toggleAlwaysOnTop()
+        },
+        {
+          type: 'separator'
+        },
+        {
+          label: 'Go Back',
+          accelerator: 'Esc',
+          click: () => windows.main.dispatch('escapeBack')
         },
         {
           type: 'separator'
@@ -312,14 +175,14 @@ function getAppMenuTemplate () {
               accelerator: process.platform === 'darwin'
                 ? 'Alt+Command+I'
                 : 'Ctrl+Shift+I',
-              click: toggleDevTools
+              click: () => windows.main.toggleDevTools()
             },
             {
               label: 'Show WebTorrent Process',
               accelerator: process.platform === 'darwin'
                 ? 'Alt+Command+P'
                 : 'Ctrl+Shift+P',
-              click: showWebTorrentWindow
+              click: () => windows.webtorrent.toggleDevTools()
             }
           ]
         }
@@ -330,8 +193,8 @@ function getAppMenuTemplate () {
       submenu: [
         {
           label: 'Play/Pause',
-          accelerator: 'CmdOrCtrl+P',
-          click: playPause,
+          accelerator: 'Space',
+          click: () => windows.main.dispatch('playPause'),
           enabled: false
         },
         {
@@ -340,13 +203,13 @@ function getAppMenuTemplate () {
         {
           label: 'Increase Volume',
           accelerator: 'CmdOrCtrl+Up',
-          click: increaseVolume,
+          click: () => windows.main.dispatch('changeVolume', 0.1),
           enabled: false
         },
         {
           label: 'Decrease Volume',
           accelerator: 'CmdOrCtrl+Down',
-          click: decreaseVolume,
+          click: () => windows.main.dispatch('changeVolume', -0.1),
           enabled: false
         },
         {
@@ -354,14 +217,18 @@ function getAppMenuTemplate () {
         },
         {
           label: 'Step Forward',
-          accelerator: 'CmdOrCtrl+Alt+Right',
-          click: skipForward,
+          accelerator: process.platform === 'darwin'
+            ? 'CmdOrCtrl+Alt+Right'
+            : 'Alt+Right',
+          click: () => windows.main.dispatch('skip', 10),
           enabled: false
         },
         {
           label: 'Step Backward',
-          accelerator: 'CmdOrCtrl+Alt+Left',
-          click: skipBack,
+          accelerator: process.platform === 'darwin'
+            ? 'CmdOrCtrl+Alt+Left'
+            : 'Alt+Left',
+          click: () => windows.main.dispatch('skip', -10),
           enabled: false
         },
         {
@@ -370,13 +237,13 @@ function getAppMenuTemplate () {
         {
           label: 'Increase Speed',
           accelerator: 'CmdOrCtrl+=',
-          click: increasePlaybackRate,
+          click: () => windows.main.dispatch('changePlaybackRate', 1),
           enabled: false
         },
         {
           label: 'Decrease Speed',
           accelerator: 'CmdOrCtrl+-',
-          click: decreasePlaybackRate,
+          click: () => windows.main.dispatch('changePlaybackRate', -1),
           enabled: false
         },
         {
@@ -384,7 +251,7 @@ function getAppMenuTemplate () {
         },
         {
           label: 'Add Subtitles File...',
-          click: openSubtitles,
+          click: () => windows.main.dispatch('openSubtitles'),
           enabled: false
         }
       ]
@@ -395,18 +262,18 @@ function getAppMenuTemplate () {
       submenu: [
         {
           label: 'Learn more about ' + config.APP_NAME,
-          click: () => electron.shell.openExternal(config.HOME_PAGE_URL)
+          click: () => shell.openExternal(config.HOME_PAGE_URL)
         },
         {
           label: 'Contribute on GitHub',
-          click: () => electron.shell.openExternal(config.GITHUB_URL)
+          click: () => shell.openExternal(config.GITHUB_URL)
         },
         {
           type: 'separator'
         },
         {
           label: 'Report an Issue...',
-          click: () => electron.shell.openExternal(config.GITHUB_URL_ISSUES)
+          click: () => shell.openExternal(config.GITHUB_URL_ISSUES)
         }
       ]
     }
@@ -427,7 +294,7 @@ function getAppMenuTemplate () {
         {
           label: 'Preferences',
           accelerator: 'Cmd+,',
-          click: () => showPreferences()
+          click: () => windows.main.dispatch('preferences')
         },
         {
           type: 'separator'
@@ -486,12 +353,13 @@ function getAppMenuTemplate () {
     })
   }
 
-  // In Linux and Windows it is not possible to open both folders and files
+  // 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: showOpenSeedFile
+      click: () => dialog.openSeedFile()
     })
 
     // Help menu (Windows, Linux)
@@ -501,12 +369,12 @@ function getAppMenuTemplate () {
       },
       {
         label: 'About ' + config.APP_NAME,
-        click: windows.createAboutWindow
+        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.
+  // 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({
@@ -517,23 +385,3 @@ function getAppMenuTemplate () {
 
   return template
 }
-
-function getDockMenuTemplate () {
-  return [
-    {
-      label: 'Create New Torrent...',
-      accelerator: 'CmdOrCtrl+N',
-      click: showOpenSeedFiles
-    },
-    {
-      label: 'Open Torrent File...',
-      accelerator: 'CmdOrCtrl+O',
-      click: showOpenTorrentFile
-    },
-    {
-      label: 'Open Torrent Address...',
-      accelerator: 'CmdOrCtrl+U',
-      click: showOpenTorrentAddress
-    }
-  ]
-}

main/power-save-blocker.js

@@ -0,0 +1,30 @@
+module.exports = {
+  enable,
+  disable
+}
+
+var electron = require('electron')
+var log = require('./log')
+
+var blockId = 0
+
+/**
+ * Block the system from entering low-power (sleep) mode or turning off the
+ * display.
+ */
+function enable () {
+  disable() // Stop the previous power saver block, if one exists.
+  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)) {
+    return
+  }
+  electron.powerSaveBlocker.stop(blockId)
+  log(`powerSaveBlocker.disable: ${blockId}`)
+}

main/shell.js

@@ -0,0 +1,41 @@
+module.exports = {
+  openExternal,
+  openItem,
+  showItemInFolder,
+  moveItemToTrash
+}
+
+var electron = require('electron')
+var 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)
+}

main/shortcuts.js

@@ -1,34 +1,20 @@
 module.exports = {
-  init,
-  onPlayerClose,
-  onPlayerOpen
+  disable,
+  enable
 }
 
 var electron = require('electron')
-
-var menu = require('./menu')
 var windows = require('./windows')
 
-function init () {
-  var localShortcut = require('electron-localshortcut')
-
-  // Alternate shortcuts. Most shortcuts are registered in menu,js, but Electron
-  // does not support multiple shortcuts for a single menu item.
-  localShortcut.register('CmdOrCtrl+Shift+F', menu.toggleFullScreen)
-  localShortcut.register('Space', () => windows.main.send('dispatch', 'playPause'))
-
-  // Hidden shortcuts, i.e. not shown in the menu
-  localShortcut.register('Esc', () => windows.main.send('dispatch', 'escapeBack'))
-}
-
-function onPlayerOpen () {
-  // Register special "media key" for play/pause, available on some keyboards
+function enable () {
+  // Register play/pause media key, available on some keyboards.
   electron.globalShortcut.register(
     'MediaPlayPause',
-    () => windows.main.send('dispatch', 'playPause')
+    () => windows.main.dispatch('playPause')
   )
 }
 
-function onPlayerClose () {
+function disable () {
+  // Return the media key to the OS, so other apps can use it.
   electron.globalShortcut.unregister('MediaPlayPause')
 }

main/squirrel-win32.js

@@ -12,8 +12,8 @@ var app = electron.app
 
 var handlers = require('./handlers')
 
-var exeName = path.basename(process.execPath)
-var updateDotExe = path.join(process.execPath, '..', '..', 'Update.exe')
+var EXE_NAME = path.basename(process.execPath)
+var UPDATE_EXE = path.join(process.execPath, '..', '..', 'Update.exe')
 
 function handleEvent (cmd) {
   if (cmd === '--squirrel-install') {
@@ -61,15 +61,17 @@ 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 = ''
 
@@ -99,24 +101,31 @@ 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()
   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
+    // If the desktop shortcut was deleted by the user, then keep it deleted.
     fs.access(desktopShortcutPath, function (err) {
       var desktopShortcutExists = !err
       createShortcuts(function () {
@@ -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)
 }

main/thumbar.js

@@ -0,0 +1,54 @@
+module.exports = {
+  disable,
+  enable,
+  onPlayerPause,
+  onPlayerPlay
+}
+
+/**
+ * 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.
+ */
+
+var path = require('path')
+var config = require('../config')
+
+var windows = require('./windows')
+
+/**
+ * Show the Windows thumbnail toolbar buttons.
+ */
+function enable () {
+  update(false)
+}
+
+/**
+ * Hide the Windows thumbnail toolbar buttons.
+ */
+function disable () {
+  windows.main.win.setThumbarButtons([])
+}
+
+function onPlayerPause () {
+  update(true)
+}
+
+function onPlayerPlay () {
+  update(false)
+}
+
+function update (isPaused) {
+  var icon = isPaused
+    ? 'PlayThumbnailBarButton.png'
+    : 'PauseThumbnailBarButton.png'
+
+  var buttons = [
+    {
+      tooltip: isPaused ? 'Play' : 'Pause',
+      icon: path.join(config.STATIC_PATH, icon),
+      click: () => windows.main.dispatch('playPause')
+    }
+  ]
+  windows.main.win.setThumbarButtons(buttons)
+}

main/tray.js

@@ -1,51 +1,62 @@
 module.exports = {
+  hasTray,
   init,
-  hasTray
+  onWindowBlur,
+  onWindowFocus
 }
 
-var cp = require('child_process')
-var path = require('path')
 var electron = require('electron')
 
 var app = electron.app
 
+var config = require('../config')
 var windows = require('./windows')
 
-var trayIcon
+var tray
 
 function init () {
-  // OS X has no tray icon
-  if (process.platform === 'darwin') return
-
-  // On Linux, asynchronously check for libappindicator1
   if (process.platform === 'linux') {
-    checkLinuxTraySupport(function (supportsTray) {
-      if (supportsTray) createTrayIcon()
-    })
+    initLinux()
   }
-
-  // Windows always supports minimize-to-tray
-  if (process.platform === 'win32') createTrayIcon()
+  if (process.platform === 'win32') {
+    initWin32()
+  }
+  // OS X apps generally do not have menu bar icons
 }
 
+/**
+ * Returns true if there a tray icon is active.
+ */
 function hasTray () {
-  return !!trayIcon
+  return !!tray
 }
 
-function createTrayIcon () {
-  trayIcon = new electron.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
+function onWindowBlur () {
+  if (!tray) return
   updateTrayMenu()
-  windows.main.on('show', updateTrayMenu)
-  windows.main.on('hide', updateTrayMenu)
 }
 
+function onWindowFocus () {
+  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) {
+  var 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.
@@ -57,25 +68,48 @@ function checkLinuxTraySupport (cb) {
   })
 }
 
+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 () {
-  var showHideMenuItem
-  if (windows.main.isVisible()) {
-    showHideMenuItem = { label: 'Hide to tray', click: hideApp }
-  } else {
-    showHideMenuItem = { label: 'Show', click: showApp }
+  var 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()
+      }
+    }
   }
-  var contextMenu = electron.Menu.buildFromTemplate([
-    showHideMenuItem,
-    { label: 'Quit', click: () => app.quit() }
-  ])
-  trayIcon.setContextMenu(contextMenu)
 }
 
-function showApp () {
-  windows.main.show()
-}
-
-function hideApp () {
-  windows.main.hide()
-  windows.main.send('dispatch', 'backToList')
+function getIconPath () {
+  return process.platform === 'win32'
+    ? config.APP_ICON + '.ico'
+    : config.APP_ICON + '.png'
 }

main/updater.js

@@ -21,27 +21,27 @@ function init () {
   }
 }
 
-// The Electron auto-updater does not support Linux yet, so manually check for updates and
-// `show the user a modal notification.
+// 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.send('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 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}`)
   }
 }
 

main/windows.js

@@ -1,139 +0,0 @@
-var windows = module.exports = {
-  about: null,
-  main: null,
-  createAboutWindow,
-  createWebTorrentHiddenWindow,
-  createMainWindow,
-  focusWindow
-}
-
-var electron = require('electron')
-
-var app = electron.app
-
-var config = require('../config')
-var menu = require('./menu')
-var tray = require('./tray')
-
-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 (!app.isQuitting) {
-      e.preventDefault()
-      win.hide()
-    }
-  })
-
-  win.once('closed', function () {
-    windows.webtorrent = null
-  })
-}
-
-var HEADER_HEIGHT = 37
-var TORRENT_HEIGHT = 100
-
-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 + 'Smaller.png', // Window and Volume Mixer icon.
-    minWidth: config.WINDOW_MIN_WIDTH,
-    minHeight: config.WINDOW_MIN_HEIGHT,
-    show: false, // Hide window until renderer sends 'ipcReady' event
-    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: HEADER_HEIGHT + (TORRENT_HEIGHT * 6) // header height + 5 torrents
-  })
-  win.loadURL(config.WINDOW_MAIN)
-  if (process.platform === 'darwin') {
-    win.setSheetOffset(HEADER_HEIGHT)
-  }
-
-  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 (process.platform !== 'darwin' && !tray.hasTray()) {
-      app.quit()
-    } else if (!app.isQuitting) {
-      e.preventDefault()
-      win.hide()
-      win.send('dispatch', 'backToList')
-    }
-  })
-
-  win.once('closed', function () {
-    windows.main = null
-  })
-}
-
-function focusWindow (win) {
-  if (win.isMinimized()) {
-    win.restore()
-  }
-  win.show() // shows and gives focus
-}

main/windows/about.js

@@ -0,0 +1,48 @@
+var about = module.exports = {
+  init,
+  win: null
+}
+
+var config = require('../../config')
+var electron = require('electron')
+
+function init () {
+  if (about.win) {
+    return about.win.show()
+  }
+
+  var 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.webContents.once('did-finish-load', function () {
+    win.show()
+  })
+
+  win.once('closed', function () {
+    about.win = null
+  })
+}
+
+function getIconPath () {
+  return process.platform === 'win32'
+    ? config.APP_ICON + '.ico'
+    : config.APP_ICON + '.png'
+}

main/windows/index.js

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

main/windows/main.js

@@ -0,0 +1,220 @@
+var main = module.exports = {
+  dispatch,
+  hide,
+  init,
+  send,
+  setAspectRatio,
+  setBounds,
+  setProgress,
+  setTitle,
+  show,
+  toggleAlwaysOnTop,
+  toggleDevTools,
+  toggleFullScreen,
+  win: null
+}
+
+var electron = require('electron')
+
+var app = electron.app
+
+var config = require('../../config')
+var log = require('../log')
+var menu = require('../menu')
+var tray = require('../tray')
+
+var HEADER_HEIGHT = 37
+var TORRENT_HEIGHT = 100
+
+function init () {
+  if (main.win) {
+    return main.win.show()
+  }
+  var win = main.win = new electron.BrowserWindow({
+    backgroundColor: '#1E1E1E',
+    darkTheme: true, // Forces dark theme (GTK+3)
+    icon: getIconPath(), // Window icon (Windows, Linux)
+    minWidth: config.WINDOW_MIN_WIDTH,
+    minHeight: config.WINDOW_MIN_HEIGHT,
+    title: config.APP_WINDOW_TITLE,
+    titleBarStyle: 'hidden-inset', // Hide title bar (OS X)
+    useContentSize: true, // Specify web page size without OS chrome
+    width: 500,
+    height: HEADER_HEIGHT + (TORRENT_HEIGHT * 6) // header height + 5 torrents
+  })
+
+  win.loadURL(config.WINDOW_MAIN)
+
+  if (win.setSheetOffset) win.setSheetOffset(HEADER_HEIGHT)
+
+  win.webContents.on('dom-ready', function () {
+    menu.onToggleFullScreen(main.win.isFullScreen())
+  })
+
+  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('close', function (e) {
+    if (process.platform !== 'darwin' && !tray.hasTray()) {
+      app.quit()
+    } else if (!app.isQuitting) {
+      e.preventDefault()
+      hide()
+    }
+  })
+}
+
+function dispatch (...args) {
+  send('dispatch', ...args)
+}
+
+function hide () {
+  if (!main.win) return
+  main.win.send('dispatch', 'backToList')
+  main.win.hide()
+}
+
+function send (...args) {
+  if (!main.win) return
+  main.win.send(...args)
+}
+
+/**
+ * Enforce window aspect ratio. Remove with 0. (OS X)
+ */
+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
+  var 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
+      var 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))
+    }
+    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. (OS X)
+    main.win.setAspectRatio(0)
+  }
+
+  main.win.setFullScreen(flag)
+}
+
+function onWindowBlur () {
+  menu.onWindowBlur()
+  tray.onWindowBlur()
+}
+
+function onWindowFocus () {
+  menu.onWindowFocus()
+  tray.onWindowFocus()
+}
+
+function getIconPath () {
+  return process.platform === 'win32'
+    ? config.APP_ICON + '.ico'
+    : config.APP_ICON + '.png'
+}

main/windows/webtorrent.js

@@ -0,0 +1,62 @@
+var webtorrent = module.exports = {
+  init,
+  send,
+  show,
+  toggleDevTools,
+  win: null
+}
+
+var electron = require('electron')
+
+var config = require('../../config')
+var log = require('../log')
+
+function init () {
+  var win = webtorrent.win = new electron.BrowserWindow({
+    backgroundColor: '#1E1E1E',
+    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
+  log('toggleDevTools')
+  if (webtorrent.win.webContents.isDevToolsOpened()) {
+    webtorrent.win.webContents.closeDevTools()
+    webtorrent.win.hide()
+  } else {
+    webtorrent.win.webContents.openDevTools({ detach: true })
+  }
+}

package.json

@@ -1,10 +1,10 @@
 {
   "name": "webtorrent-desktop",
   "description": "WebTorrent, the streaming torrent client. For OS X, Windows, and Linux.",
-  "version": "0.6.0",
+  "version": "0.9.0",
   "author": {
     "name": "WebTorrent, LLC",
-    "email": "feross@feross.org",
+    "email": "feross@webtorrent.io",
     "url": "https://webtorrent.io"
   },
   "bin": {
@@ -14,7 +14,7 @@
     "url": "https://github.com/feross/webtorrent-desktop/issues"
   },
   "dependencies": {
-    "airplay-js": "guerrerocarlos/node-airplay-js",
+    "airplayer": "^2.0.0",
     "application-config": "^0.2.1",
     "bitfield": "^1.0.2",
     "chromecasts": "^1.8.0",
@@ -22,8 +22,7 @@
     "deep-equal": "^1.0.1",
     "dlnacasts": "^0.1.0",
     "drag-drop": "^2.11.0",
-    "electron-localshortcut": "^0.6.0",
-    "electron-prebuilt": "1.1.1",
+    "electron-prebuilt": "1.2.1",
     "fs-extra": "^0.27.0",
     "hyperx": "^2.0.2",
     "iso-639-1": "^1.2.1",
@@ -31,8 +30,10 @@
     "main-loop": "^3.2.0",
     "musicmetadata": "^2.0.2",
     "network-address": "^1.1.0",
+    "parse-torrent": "^5.7.3",
     "prettier-bytes": "^1.0.1",
     "run-parallel": "^1.1.6",
+    "semver": "^5.1.0",
     "simple-concat": "^1.0.0",
     "simple-get": "^2.0.0",
     "srt-to-vtt": "^1.1.1",

renderer/controllers/media-controller.js

@@ -0,0 +1,56 @@
+const electron = require('electron')
+
+const ipcRenderer = electron.ipcRenderer
+
+// 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 () {
+    this.state.playing.result = 'success'
+  }
+
+  mediaStalled () {
+    this.state.playing.isStalled = true
+  }
+
+  mediaError (error) {
+    var state = this.state
+    if (state.location.url() === 'player') {
+      state.playing.result = 'error'
+      state.playing.location = 'error'
+      ipcRenderer.send('checkForVLC')
+      ipcRenderer.once('checkForVLC', function (e, isInstalled) {
+        state.modal = {
+          id: 'unsupported-media-modal',
+          error: error,
+          vlcInstalled: isInstalled
+        }
+      })
+    }
+  }
+
+  mediaTimeUpdate () {
+    this.state.playing.lastTimeUpdate = new Date().getTime()
+    this.state.playing.isStalled = false
+  }
+
+  mediaMouseMoved () {
+    this.state.playing.mouseStationarySince = new Date().getTime()
+  }
+
+  vlcPlay () {
+    ipcRenderer.send('vlcPlay', this.state.server.localURL)
+    this.state.playing.location = 'vlc'
+  }
+
+  vlcNotFound () {
+    var modal = this.state.modal
+    if (modal && modal.id === 'unsupported-media-modal') {
+      modal.vlcNotFound = true
+    }
+  }
+}

renderer/controllers/playback-controller.js

@@ -0,0 +1,309 @@
+const electron = require('electron')
+const path = require('path')
+
+const Cast = require('../lib/cast')
+const {dispatch} = require('../lib/dispatcher')
+const telemetry = require('../lib/telemetry')
+const errors = require('../lib/errors')
+const sound = require('../lib/sound')
+const TorrentPlayer = require('../lib/torrent-player')
+const TorrentSummary = require('../lib/torrent-summary')
+const State = require('../lib/state')
+
+const ipcRenderer = electron.ipcRenderer
+
+// Controls playback of torrents and files within torrents
+// both local (<video>,<audio>,VLC) 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, pick the default file to play
+  playFile (infoHash, index /* optional */) {
+    this.state.location.go({
+      url: 'player',
+      onbeforeload: (cb) => {
+        this.play()
+        openPlayer(this.state, infoHash, index, cb)
+      },
+      onbeforeunload: (cb) => closePlayer(this.state, this.config, cb)
+    }, (err) => {
+      if (err) dispatch('error', err)
+    })
+  }
+
+  // Show a file in the OS, eg in Finder on a Mac
+  openItem (infoHash, index) {
+    var torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    var filePath = path.join(
+      torrentSummary.path,
+      torrentSummary.files[index].path)
+    ipcRenderer.send('openItem', filePath)
+  }
+
+  // Toggle (play or pause) the currently playing media
+  playPause () {
+    var 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
+    var 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 (unpause) the current media
+  play () {
+    var 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 () {
+    var 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 (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) {
+    var state = this.state
+    var rate = state.playing.playbackRate
+    if (direction > 0 && rate >= 0.25 && rate < 2) {
+      rate += 0.25
+    } else if (direction < 0 && rate > 0.25 && rate <= 2) {
+      rate -= 0.25
+    } else if (direction < 0 && rate === 0.25) { /* when we set playback rate at 0 in html 5, playback hangs ;( */
+      rate = -1
+    } else if (direction > 0 && rate === -1) {
+      rate = 0.25
+    } else if ((direction > 0 && rate >= 1 && rate < 16) || (direction < 0 && rate > -16 && rate <= -1)) {
+      rate *= 2
+    } else if ((direction < 0 && rate > 1 && rate <= 16) || (direction > 0 && rate >= -16 && rate < -1)) {
+      rate /= 2
+    }
+    state.playing.playbackRate = rate
+    if (isCasting(state) && !Cast.setRate(rate)) {
+      state.playing.playbackRate = 1
+    }
+  }
+
+  // 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))
+
+    var 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 () {
+    var state = this.state
+    var hideControls = state.location.url() === 'player' &&
+      state.playing.mouseStationarySince !== 0 &&
+      new Date().getTime() - state.playing.mouseStationarySince > 2000 &&
+      !state.playing.isPaused &&
+      state.playing.location === 'local'
+
+    if (hideControls !== state.playing.hideControls) {
+      state.playing.hideControls = hideControls
+      return true
+    }
+    return false
+  }
+}
+
+// Opens the video player to a specific torrent
+function openPlayer (state, infoHash, index, cb) {
+  var torrentSummary = TorrentSummary.getByKey(state, infoHash)
+
+  // automatically choose which file in the torrent to play, if necessary
+  if (index === undefined) index = torrentSummary.defaultPlayFileIndex
+  if (index === undefined) index = TorrentPlayer.pickFileToPlay(torrentSummary.files)
+  if (index === undefined) return cb(new errors.UnplayableError())
+
+  // update UI to show pending playback
+  if (torrentSummary.progress !== 1) sound.play('PLAY')
+  // TODO: remove torrentSummary.playStatus
+  torrentSummary.playStatus = 'requested'
+  this.update()
+
+  var timeout = setTimeout(() => {
+    telemetry.logPlayAttempt('timeout')
+    // TODO: remove torrentSummary.playStatus
+    torrentSummary.playStatus = 'timeout' /* no seeders available? */
+    sound.play('ERROR')
+    cb(new Error('Playback timed out. Try again.'))
+    this.update()
+  }, 10000) /* give it a few seconds */
+
+  if (torrentSummary.status === 'paused') {
+    dispatch('startTorrentingSummary', torrentSummary)
+    ipcRenderer.once('wt-ready-' + torrentSummary.infoHash,
+      () => openPlayerFromActiveTorrent(state, torrentSummary, index, timeout, cb))
+  } else {
+    openPlayerFromActiveTorrent(state, torrentSummary, index, timeout, cb)
+  }
+}
+
+function openPlayerFromActiveTorrent (state, torrentSummary, index, timeout, cb) {
+  var fileSummary = torrentSummary.files[index]
+
+  // update state
+  state.playing.infoHash = torrentSummary.infoHash
+  state.playing.fileIndex = index
+  state.playing.type = TorrentPlayer.isVideo(fileSummary) ? 'video'
+    : TorrentPlayer.isAudio(fileSummary) ? 'audio'
+    : 'other'
+
+  // pick up where we left off
+  if (fileSummary.currentTime) {
+    var fraction = fileSummary.currentTime / fileSummary.duration
+    var secondsLeft = fileSummary.duration - fileSummary.currentTime
+    if (fraction < 0.9 && secondsLeft > 10) {
+      state.playing.jumpToTime = fileSummary.currentTime
+    }
+  }
+
+  // if it's audio, parse out the metadata (artist, title, etc)
+  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)
+  }
+
+  ipcRenderer.send('wt-start-server', torrentSummary.infoHash, index)
+  ipcRenderer.once('wt-server-' + torrentSummary.infoHash, (e, info) => {
+    clearTimeout(timeout)
+
+    // if we timed out (user clicked play a long time ago), don't autoplay
+    var timedOut = torrentSummary.playStatus === 'timeout'
+    delete torrentSummary.playStatus
+    if (timedOut) {
+      ipcRenderer.send('wt-stop-server')
+      return this.update()
+    }
+
+    // otherwise, play the video
+    state.window.title = torrentSummary.files[state.playing.fileIndex].name
+    this.update()
+
+    ipcRenderer.send('onPlayerOpen')
+
+    cb()
+  })
+}
+
+function closePlayer (state, config, cb) {
+  console.log('closePlayer')
+
+  // Quit any external players, like Chromecast/Airplay/etc or VLC
+  if (isCasting(state)) {
+    Cast.stop()
+  }
+  if (state.playing.location === 'vlc') {
+    ipcRenderer.send('vlcQuit')
+  }
+
+  // Save volume (this session only, not in state.saved)
+  state.previousVolume = state.playing.volume
+
+  // Telemetry: track what happens after the user clicks play
+  var result = state.playing.result // 'success' or 'error'
+  if (result === 'success') telemetry.logPlayAttempt('success') // first frame displayed
+  else if (result === 'error') telemetry.logPlayAttempt('error') // codec missing, etc
+  else if (result === undefined) telemetry.logPlayAttempt('abandoned') // user exited before first frame
+  else console.error('Unknown state.playing.result', state.playing.result)
+
+  // Reset the window contents back to the home screen
+  state.window.title = config.APP_WINDOW_TITLE
+  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()
+  cb()
+}
+
+// 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)
+  }
+}

renderer/controllers/prefs-controller.js

@@ -0,0 +1,51 @@
+const State = require('../lib/state')
+
+// Controls the Preferences screen
+module.exports = class PrefsController {
+  constructor (state, config) {
+    this.state = state
+    this.config = config
+  }
+
+  // Goes to the Preferences screen
+  show () {
+    var state = this.state
+    state.location.go({
+      url: 'preferences',
+      onbeforeload: function (cb) {
+        // initialize preferences
+        state.window.title = 'Preferences'
+        state.unsaved = Object.assign(state.unsaved || {}, {prefs: state.saved.prefs || {}})
+        cb()
+      },
+      onbeforeunload: (cb) => {
+        // save state after preferences
+        this.save()
+        state.window.title = this.config.APP_WINDOW_TITLE
+        cb()
+      }
+    })
+  }
+
+  // Updates a single property in the UNSAVED prefs
+  // For example: updatePreferences("foo.bar", "baz")
+  // Call savePreferences to save to config.json
+  update (property, value) {
+    var path = property.split('.')
+    var key = this.state.unsaved.prefs
+    for (var i = 0; i < path.length - 1; i++) {
+      if (typeof key[path[i]] === 'undefined') {
+        key[path[i]] = {}
+      }
+      key = key[path[i]]
+    }
+    key[path[i]] = value
+  }
+
+  // All unsaved prefs take effect atomically, and are saved to config.json
+  save () {
+    var state = this.state
+    state.saved.prefs = Object.assign(state.saved.prefs || {}, state.unsaved.prefs)
+    State.save(state)
+  }
+}

renderer/controllers/subtitles-controller.js

@@ -0,0 +1,137 @@
+const electron = require('electron')
+const fs = require('fs-extra')
+const path = require('path')
+const parallel = require('run-parallel')
+
+const {dispatch} = require('../lib/dispatcher')
+
+module.exports = class SubtitlesController {
+  constructor (state) {
+    this.state = state
+  }
+
+  openSubtitles () {
+    electron.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 () {
+    var subtitles = this.state.playing.subtitles
+    subtitles.showMenu = !subtitles.showMenu
+  }
+
+  addSubtitles (files, autoSelect) {
+    var state = this.state
+    // Subtitles are only supported when playing video files
+    if (state.playing.type !== 'video') return
+    if (files.length === 0) return
+    var subtitles = state.playing.subtitles
+
+    // Read the files concurrently, then add all resulting subtitle tracks
+    var tasks = files.map((file) => (cb) => loadSubtitle(file, cb))
+    parallel(tasks, function (err, tracks) {
+      if (err) return dispatch('error', err)
+
+      for (var i = 0; i < tracks.length; i++) {
+        // No dupes allowed
+        var track = tracks[i]
+        var trackIndex = state.playing.subtitles.tracks
+          .findIndex((t) => track.filePath === t.filePath)
+
+        // Add the track
+        if (trackIndex === -1) {
+          trackIndex = state.playing.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))) {
+          state.playing.subtitles.selectedIndex = trackIndex
+        }
+      }
+
+      // Finally, make sure no two tracks have the same label
+      relabelSubtitles(subtitles)
+    })
+  }
+
+  checkForSubtitles () {
+    if (this.state.playing.type !== 'video') return
+    var torrentSummary = this.state.getPlayingTorrentSummary()
+    if (!torrentSummary || !torrentSummary.progress) return
+
+    torrentSummary.progress.files.forEach((fp, ix) => {
+      if (fp.numPieces !== fp.numPiecesPresent) return // ignore incomplete files
+      var file = torrentSummary.files[ix]
+      if (!this.isSubtitle(file.name)) return
+      var filePath = path.join(torrentSummary.path, file.path)
+      this.addSubtitles([filePath], false)
+    })
+  }
+
+  isSubtitle (file) {
+    var name = typeof file === 'string' ? file : file.name
+    var ext = path.extname(name).toLowerCase()
+    return ext === '.srt' || ext === '.vtt'
+  }
+}
+
+function loadSubtitle (file, cb) {
+  // Lazy load to keep startup fast
+  var concat = require('simple-concat')
+  var LanguageDetect = require('languagedetect')
+  var srtToVtt = require('srt-to-vtt')
+
+  // Read the .SRT or .VTT file, parse it, add subtitle track
+  var filePath = file.path || file
+
+  var 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
+    var vttContents = buf.toString().replace(/(.*-->.*)/g, '')
+    var langDetected = (new LanguageDetect()).detect(vttContents, 2)
+    langDetected = langDetected.length ? langDetected[0][0] : 'subtitle'
+    langDetected = langDetected.slice(0, 1).toUpperCase() + langDetected.slice(1)
+
+    var 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) {
+  var iso639 = require('iso-639-1')
+  var osLangISO = window.navigator.language.split('-')[0] // eg "en"
+  var 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) {
+  var counts = {}
+  subtitles.tracks.forEach(function (track) {
+    var lang = track.language
+    counts[lang] = (counts[lang] || 0) + 1
+    track.label = counts[lang] > 1 ? (lang + ' ' + counts[lang]) : lang
+  })
+}

renderer/controllers/torrent-controller.js

@@ -0,0 +1,192 @@
+const path = require('path')
+const ipcRenderer = require('electron').ipcRenderer
+
+const TorrentSummary = require('../lib/torrent-summary')
+const TorrentPlayer = require('../lib/torrent-player')
+const sound = require('../lib/sound')
+const {dispatch} = require('../lib/dispatcher')
+
+module.exports = class TorrentController {
+  constructor (state) {
+    this.state = state
+  }
+
+  torrentInfoHash (torrentKey, infoHash) {
+    var torrentSummary = this.getTorrentSummary(torrentKey)
+    console.log('got infohash for %s torrent %s',
+      torrentSummary ? 'existing' : 'new', torrentKey)
+
+    if (!torrentSummary) {
+      var 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)
+
+    var 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
+    var 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:
+    var hasDetailedFileInfo = torrentSummary.files && torrentSummary.files[0].path
+    if (!hasDetailedFileInfo) {
+      torrentSummary.files = torrentInfo.files
+    }
+    if (!torrentSummary.selections) {
+      torrentSummary.selections = torrentSummary.files.map((x) => true)
+    }
+    torrentSummary.defaultPlayFileIndex = TorrentPlayer.pickFileToPlay(torrentInfo.files)
+    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
+    var 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
+    var progress = progressInfo.progress
+    var hasActiveTorrents = progressInfo.hasActiveTorrents
+
+    // Hide progress bar when client has no torrents, or progress is 100%
+    // TODO: isn't this equivalent to: if (progress === 1) ?
+    if (!hasActiveTorrents || progress === 1) {
+      progress = -1
+    }
+
+    // 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) => {
+      var 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()
+
+    dispatch('update')
+  }
+
+  torrentFileModtimes (torrentKey, fileModtimes) {
+    var torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.fileModtimes = fileModtimes
+    dispatch('saveStateThrottled')
+  }
+
+  torrentFileSaved (torrentKey, torrentFileName) {
+    console.log('torrent file saved %s: %s', torrentKey, torrentFileName)
+    var torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.torrentFileName = torrentFileName
+    dispatch('saveStateThrottled')
+  }
+
+  torrentPosterSaved (torrentKey, posterFileName) {
+    var torrentSummary = this.getTorrentSummary(torrentKey)
+    torrentSummary.posterFileName = posterFileName
+    dispatch('saveStateThrottled')
+  }
+
+  torrentAudioMetadata (infoHash, index, info) {
+    var torrentSummary = this.getTorrentSummary(infoHash)
+    var 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) {
+  var itemPath = TorrentSummary.getFileOrFolder(torrentSummary)
+  if (torrentSummary.files.length > 1) {
+    itemPath = path.dirname(itemPath)
+  }
+  return itemPath
+}
+
+function showDoneNotification (torrent) {
+  var notif = new window.Notification('Download Complete', {
+    body: torrent.name,
+    silent: true
+  })
+
+  notif.onclick = function () {
+    ipcRenderer.send('show')
+  }
+
+  sound.play('DONE')
+}

renderer/controllers/torrent-list-controller.js

@@ -0,0 +1,282 @@
+const fs = require('fs')
+const path = require('path')
+const electron = require('electron')
+
+const {dispatch} = require('../lib/dispatcher')
+const State = require('../lib/state')
+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://github.com/feross/webtorrent#clientaddtorrentid-opts-function-ontorrent-torrent-
+  addTorrent (torrentId) {
+    if (torrentId.path) {
+      // Use path string instead of W3C File object
+      torrentId = torrentId.path
+    }
+    // Allow a instant.io link to be pasted
+    // TODO: remove this once support is added to webtorrent core
+    if (typeof torrentId === 'string' && instantIoRegex.test(torrentId)) {
+      torrentId = torrentId.slice(torrentId.indexOf('#') + 1)
+    }
+
+    var torrentKey = this.state.nextTorrentKey++
+    var 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) {
+    // 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
+      })
+      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))
+  }
+
+  // Switches between the advanced and simple Create Torrent UI
+  toggleCreateTorrentAdvanced () {
+    var info = this.state.location.current()
+    if (info.url !== 'create-torrent') return
+    info.showAdvanced = !info.showAdvanced
+  }
+
+  // Creates a new torrent and start seeeding
+  createTorrent (options) {
+    var state = this.state
+    var torrentKey = state.nextTorrentKey++
+    ipcRenderer.send('wt-create-torrent', torrentKey, options)
+    state.location.backToFirst(function () {
+      state.location.clearForward('create-torrent')
+    })
+  }
+
+  // Starts downloading and/or seeding a given torrentSummary.
+  startTorrentingSummary (torrentSummary) {
+    var s = torrentSummary
+
+    // Backward compatibility for config files save before we had torrentKey
+    if (!s.torrentKey) s.torrentKey = this.state.nextTorrentKey++
+
+    // Use Downloads folder by default
+    if (!s.path) s.path = this.state.saved.prefs.downloadPath
+
+    ipcRenderer.send('wt-start-torrenting',
+                      s.torrentKey,
+                      TorrentSummary.getTorrentID(s),
+                      s.path,
+                      s.fileModtimes,
+                      s.selections)
+  }
+
+  // TODO: use torrentKey, not infoHash
+  toggleTorrent (infoHash) {
+    var torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    if (torrentSummary.status === 'paused') {
+      torrentSummary.status = 'new'
+      this.startTorrentingSummary(torrentSummary)
+      sound.play('ENABLE')
+    } else {
+      torrentSummary.status = 'paused'
+      ipcRenderer.send('wt-stop-torrenting', torrentSummary.infoHash)
+      sound.play('DISABLE')
+    }
+  }
+
+  toggleTorrentFile (infoHash, index) {
+    var torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    torrentSummary.selections[index] = !torrentSummary.selections[index]
+
+    // Let the WebTorrent process know to start or stop fetching that file
+    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)
+
+    var index = this.state.saved.torrents.findIndex((x) => x.infoHash === infoHash)
+
+    if (index > -1) {
+      var summary = this.state.saved.torrents[index]
+
+      // remove torrent and poster file
+      deleteFile(TorrentSummary.getTorrentPath(summary))
+      deleteFile(TorrentSummary.getPosterPath(summary)) // TODO: will the css path hack affect windows?
+
+      // optionally delete the torrent data
+      if (deleteData) moveItemToTrash(summary)
+
+      // remove torrent from saved list
+      this.state.saved.torrents.splice(index, 1)
+      State.saveThrottled(this.state)
+    }
+
+    this.state.location.clearForward('player') // prevent user from going forward to a deleted torrent
+    sound.play('DELETE')
+  }
+
+  toggleSelectTorrent (infoHash) {
+    if (this.state.selectedInfoHash === infoHash) {
+      this.state.selectedInfoHash = null
+    } else {
+      this.state.selectedInfoHash = infoHash
+    }
+  }
+
+  openTorrentContextMenu (infoHash) {
+    var torrentSummary = TorrentSummary.getByKey(this.state, infoHash)
+    var 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: () => saveTorrentFileAs(torrentSummary)
+    }))
+
+    menu.popup(electron.remote.getCurrentWindow())
+  }
+}
+
+// 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) {
+    var numComplete = 0
+    var ret = []
+    paths.forEach(function (path) {
+      findFilesRecursive([path], function (fileObjs) {
+        ret = ret.concat(fileObjs)
+        if (++numComplete === paths.length) {
+          ret.sort((a, b) => a.path < b.path ? -1 : a.path > b.path)
+          cb(ret)
+        }
+      })
+    })
+    return
+  }
+
+  var fileOrFolder = paths[0]
+  fs.stat(fileOrFolder, function (err, stat) {
+    if (err) return dispatch('error', err)
+
+    // Files: return name, path, and size
+    if (!stat.isDirectory()) {
+      var filePath = fileOrFolder
+      return cb([{
+        name: path.basename(filePath),
+        path: filePath,
+        size: stat.size
+      }])
+    }
+
+    // Folders: recurse, make a list of all the files
+    var folderPath = fileOrFolder
+    fs.readdir(folderPath, function (err, fileNames) {
+      if (err) return dispatch('error', err)
+      var 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) {
+  var filePath = TorrentSummary.getFileOrFolder(torrentSummary)
+  ipcRenderer.send('moveItemToTrash', filePath)
+}
+
+function showItemInFolder (torrentSummary) {
+  ipcRenderer.send('showItemInFolder', TorrentSummary.getFileOrFolder(torrentSummary))
+}
+
+function saveTorrentFileAs (torrentSummary) {
+  var downloadPath = this.state.saved.prefs.downloadPath
+  var newFileName = path.parse(torrentSummary.name).name + '.torrent'
+  var opts = {
+    title: 'Save Torrent File',
+    defaultPath: path.join(downloadPath, newFileName),
+    filters: [
+      { name: 'Torrent Files', extensions: ['torrent'] },
+      { name: 'All Files', extensions: ['*'] }
+    ]
+  }
+  electron.remote.dialog.showSaveDialog(electron.remote.getCurrentWindow(), opts, function (savePath) {
+    var 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)
+      })
+    })
+  })
+}

renderer/controllers/update-controller.js

@@ -0,0 +1,26 @@
+const State = require('../lib/state')
+
+// 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) {
+    var 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) {
+    var skipped = this.state.saved.skippedVersions
+    if (!skipped) skipped = this.state.saved.skippedVersions = []
+    skipped.push(version)
+    State.saveThrottled(this.state)
+  }
+}

renderer/lib/cast.js

@@ -3,8 +3,9 @@
 // * Starts and stops casting, provides remote video controls
 module.exports = {
   init,
-  open,
-  close,
+  toggleMenu,
+  selectDevice,
+  stop,
   play,
   pause,
   seek,
@@ -12,9 +13,8 @@ module.exports = {
   setRate
 }
 
-var airplay = require('airplay-js')
-var chromecasts = require('chromecasts')()
-var dlnacasts = require('dlnacasts')()
+// Lazy load these for a ~300ms improvement in startup time
+var airplayer, chromecasts, dlnacasts
 
 var config = require('../../config')
 
@@ -32,25 +32,54 @@ function init (appState, callback) {
   state = appState
   update = callback
 
+  // 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 (player) {
-    state.devices.chromecast = chromecastPlayer(player)
+  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 (player) {
-    state.devices.dlna = dlnaPlayer(player)
+  dlnacasts.on('update', function (device) {
+    state.devices.dlna.addDevice(device)
   })
 
-  var browser = airplay.createBrowser()
-  browser.on('deviceOn', function (player) {
-    state.devices.airplay = airplayPlayer(player)
-  }).start()
+  airplayer.on('update', function (device) {
+    state.devices.airplay.addDevice(device)
+  })
 }
 
 // chromecast player implementation
-function chromecastPlayer (player) {
-  function addEvents () {
-    player.on('error', function (err) {
+function chromecastPlayer () {
+  var 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(),
@@ -58,7 +87,8 @@ function chromecastPlayer (player) {
       })
       update()
     })
-    player.on('disconnect', function () {
+    device.on('disconnect', function () {
+      if (device !== ret.device) return
       state.playing.location = 'local'
       update()
     })
@@ -66,7 +96,7 @@ function chromecastPlayer (player) {
 
   function open () {
     var torrentSummary = state.saved.torrents.find((x) => x.infoHash === state.playing.infoHash)
-    player.play(state.server.networkURL, {
+    ret.device.play(state.server.networkURL, {
       type: 'video/mp4',
       title: config.APP_NAME + ' - ' + torrentSummary.name
     }, function (err) {
@@ -84,19 +114,19 @@ function chromecastPlayer (player) {
   }
 
   function play (callback) {
-    player.play(null, null, callback)
+    ret.device.play(null, null, callback)
   }
 
   function pause (callback) {
-    player.pause(callback)
+    ret.device.pause(callback)
   }
 
   function stop (callback) {
-    player.stop(callback)
+    ret.device.stop(callback)
   }
 
   function status () {
-    player.status(function (err, status) {
+    ret.device.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
@@ -106,36 +136,59 @@ function chromecastPlayer (player) {
   }
 
   function seek (time, callback) {
-    player.seek(time, callback)
+    ret.device.seek(time, callback)
   }
 
   function volume (volume, callback) {
-    player.volume(volume, callback)
-  }
-
-  addEvents()
-
-  return {
-    player: player,
-    open: open,
-    play: play,
-    pause: pause,
-    stop: stop,
-    status: status,
-    seek: seek,
-    volume: volume
+    ret.device.volume(volume, callback)
   }
 }
 
 // airplay player implementation
-function airplayPlayer (player) {
+function airplayPlayer () {
+  var 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 () {
-    player.play(state.server.networkURL, 0, function (res) {
-      if (res.statusCode !== 200) {
+    ret.device.play(state.server.networkURL, function (err, res) {
+      if (err) {
         state.playing.location = 'local'
         state.errors.push({
           time: new Date().getTime(),
-          message: 'Could not connect to AirPlay.'
+          message: 'Could not connect to AirPlay. ' + err.message
         })
       } else {
         state.playing.location = 'airplay'
@@ -145,55 +198,67 @@ function airplayPlayer (player) {
   }
 
   function play (callback) {
-    player.rate(1, callback)
+    ret.device.resume(callback)
   }
 
   function pause (callback) {
-    player.rate(0, callback)
+    ret.device.pause(callback)
   }
 
   function stop (callback) {
-    player.stop(callback)
+    ret.device.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()
+    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) {
-    player.scrub(time, callback)
+    ret.device.scrub(time, callback)
   }
 
   function volume (volume, callback) {
-    // TODO remove line below once we can fetch the information in status update
+    // AirPlay doesn't support volume
+    // TODO: We should just disable the volume slider
     state.playing.volume = volume
-    volume = (volume - 1) * 30
-    player.volume(volume, callback)
-  }
-
-  return {
-    player: player,
-    open: open,
-    play: play,
-    pause: pause,
-    stop: stop,
-    status: status,
-    seek: seek,
-    volume: volume
   }
 }
 
 // DLNA player implementation
 function dlnaPlayer (player) {
-  function addEvents () {
-    player.on('error', function (err) {
+  var 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(),
@@ -201,7 +266,8 @@ function dlnaPlayer (player) {
       })
       update()
     })
-    player.on('disconnect', function () {
+    device.on('disconnect', function () {
+      if (device !== ret.device) return
       state.playing.location = 'local'
       update()
     })
@@ -209,7 +275,7 @@ function dlnaPlayer (player) {
 
   function open () {
     var torrentSummary = state.saved.torrents.find((x) => x.infoHash === state.playing.infoHash)
-    player.play(state.server.networkURL, {
+    ret.device.play(state.server.networkURL, {
       type: 'video/mp4',
       title: config.APP_NAME + ' - ' + torrentSummary.name,
       seek: state.playing.currentTime > 10 ? state.playing.currentTime : 0
@@ -228,19 +294,19 @@ function dlnaPlayer (player) {
   }
 
   function play (callback) {
-    player.play(null, null, callback)
+    ret.device.play(null, null, callback)
   }
 
   function pause (callback) {
-    player.pause(callback)
+    ret.device.pause(callback)
   }
 
   function stop (callback) {
-    player.stop(callback)
+    ret.device.stop(callback)
   }
 
   function status () {
-    player.status(function (err, status) {
+    ret.device.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
@@ -250,61 +316,78 @@ function dlnaPlayer (player) {
   }
 
   function seek (time, callback) {
-    player.seek(time, callback)
+    ret.device.seek(time, callback)
   }
 
   function volume (volume, callback) {
-    player.volume(volume, function (err) {
+    ret.device.volume(volume, function (err) {
       // quick volume update
       state.playing.volume = volume
       callback(err)
     })
   }
-
-  addEvents()
-
-  return {
-    player: player,
-    open: open,
-    play: play,
-    pause: pause,
-    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()
-    }
+    var player = getPlayer()
+    if (player) player.status()
   }, 1000)
 }
 
-function open (location) {
+/*
+ * 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 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()
-  }
+  // Find all cast devices of the given type
+  var player = getPlayer(location)
+  var devices = player ? player.getDevices() : []
+  if (devices.length === 0) throw new Error('No ' + location + ' devices available')
 
+  // Show a menu
+  state.devices.castMenu = {location, devices}
+}
+
+function selectDevice (index) {
+  var {location, devices} = state.devices.castMenu
+
+  // Start casting
+  var 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 close () {
-  var device = getDevice()
-  if (device) {
-    device.stop(stoppedCasting)
+function stop () {
+  var player = getPlayer()
+  if (player) {
+    player.stop(function () {
+      player.device = null
+      stoppedCasting()
+    })
     clearInterval(statusInterval)
   } else {
     stoppedCasting()
@@ -317,8 +400,8 @@ function stoppedCasting () {
   update()
 }
 
-function getDevice (location) {
-  if (location && state.devices[location]) {
+function getPlayer (location) {
+  if (location) {
     return state.devices[location]
   } else if (state.playing.location === 'chromecast') {
     return state.devices.chromecast
@@ -332,29 +415,25 @@ function getDevice (location) {
 }
 
 function play () {
-  var device = getDevice()
-  if (device) {
-    device.play(castCallback)
-  }
+  var player = getPlayer()
+  if (player) player.play(castCallback)
 }
 
 function pause () {
-  var device = getDevice()
-  if (device) {
-    device.pause(castCallback)
-  }
+  var player = getPlayer()
+  if (player) player.pause(castCallback)
 }
 
 function setRate (rate) {
-  var device
+  var player
   var 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') {
-    device = state.devices.airplay
-    device.rate(rate, castCallback)
+    player = state.devices.airplay
+    player.rate(rate, castCallback)
   } else {
     result = false
   }
@@ -362,17 +441,13 @@ function setRate (rate) {
 }
 
 function seek (time) {
-  var device = getDevice()
-  if (device) {
-    device.seek(time, castCallback)
-  }
+  var player = getPlayer()
+  if (player) player.seek(time, castCallback)
 }
 
 function setVolume (volume) {
-  var device = getDevice()
-  if (device) {
-    device.volume(volume, castCallback)
-  }
+  var player = getPlayer()
+  if (player) player.volume(volume, castCallback)
 }
 
 function castCallback () {

renderer/lib/dispatcher.js

@@ -1,36 +1,39 @@
 module.exports = {
-  setDispatch,
   dispatch,
-  dispatcher
+  dispatcher,
+  setDispatch
 }
 
-// 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 = () => {}
+var dispatchers = {}
+var _dispatch = function () {}
 
 function setDispatch (dispatch) {
   _dispatch = dispatch
 }
 
-// Get a _memoized event handler that calls dispatch()
-// All args must be JSON-able
+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 virtual-dom from updating the listener functions on
+// each update().
 function dispatcher (...args) {
-  var json = JSON.stringify(args)
-  var handler = _dispatchers[json]
+  var str = JSON.stringify(args)
+  var handler = dispatchers[str]
   if (!handler) {
-    handler = _dispatchers[json] = (e) => {
-      // Don't click on whatever is below the button
+    handler = dispatchers[str] = function (e) {
+      // Do not propagate click to elements below the button
       e.stopPropagation()
-      // Don't regisiter clicks on disabled buttons
-      if (e.currentTarget.classList.contains('disabled')) return
-      _dispatch.apply(null, args)
+
+      if (e.currentTarget.classList.contains('disabled')) {
+        // Ignore clicks on disabled elements
+        return
+      }
+
+      dispatch(...args)
     }
   }
   return handler
 }
-
-function dispatch (...args) {
-  _dispatch.apply(null, args)
-}

renderer/lib/hx.js

@@ -0,0 +1,5 @@
+var h = require('virtual-dom/h')
+var hyperx = require('hyperx')
+var hx = hyperx(h)
+
+module.exports = hx

renderer/lib/migrations.js

@@ -0,0 +1,95 @@
+/* eslint-disable camelcase */
+
+module.exports = {
+  run
+}
+
+var semver = require('semver')
+var 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
+  }
+
+  var version = state.saved.version
+
+  if (semver.lt(version, '0.7.0')) {
+    migrate_0_7_0(state.saved)
+  }
+
+  if (semver.lt(version, '0.7.2')) {
+    migrate_0_7_2(state.saved)
+  }
+
+  // Config is now on the new version
+  state.saved.version = config.APP_VERSION
+}
+
+function migrate_0_7_0 (saved) {
+  console.log('migrate to 0.7.0')
+
+  var fs = require('fs-extra')
+  var path = require('path')
+
+  saved.torrents.forEach(function (ts) {
+    var 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
+    var src, dst
+    if (ts.torrentPath) {
+      console.log('replacing torrentPath %s', 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) fs.copySync(src, dst)
+
+      delete ts.torrentPath
+      ts.torrentFileName = infoHash + '.torrent'
+    }
+
+    // Replace posterURL with posterFileName
+    if (ts.posterURL) {
+      console.log('replacing posterURL %s', ts.posterURL)
+      var 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) fs.copySync(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) {
+    saved.prefs = {
+      downloadPath: config.DEFAULT_DOWNLOAD_PATH
+    }
+  }
+}

renderer/lib/state.js

@@ -0,0 +1,220 @@
+var appConfig = require('application-config')('WebTorrent')
+var path = require('path')
+var {EventEmitter} = require('events')
+
+var config = require('../../config')
+var migrations = require('./migrations')
+
+var State = module.exports = Object.assign(new EventEmitter(), {
+  getDefaultPlayState,
+  load,
+  save,
+  saveThrottled
+})
+
+appConfig.filePath = path.join(config.CONFIG_PATH, 'config.json')
+
+function getDefaultState () {
+  var 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() */
+    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:
+     *
+     * 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: {},
+
+    /*
+     * Getters, for convenience
+     */
+    getPlayingTorrentSummary,
+    getPlayingFileSummary
+  }
+}
+
+/* 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 */
+    playbackRate: 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 setupSavedState (cb) {
+  var fs = require('fs-extra')
+  var parseTorrent = require('parse-torrent')
+  var parallel = require('run-parallel')
+
+  var saved = {
+    prefs: {
+      downloadPath: config.DEFAULT_DOWNLOAD_PATH
+    },
+    torrents: config.DEFAULT_TORRENTS.map(createTorrentObject),
+    version: config.APP_VERSION /* make sure we can upgrade gracefully later */
+  }
+
+  var tasks = []
+
+  config.DEFAULT_TORRENTS.map(function (t, i) {
+    var infoHash = saved.torrents[i].infoHash
+    tasks.push(function (cb) {
+      fs.copy(
+        path.join(config.STATIC_PATH, t.posterFileName),
+        path.join(config.POSTER_PATH, infoHash + path.extname(t.posterFileName)),
+        cb
+      )
+    })
+    tasks.push(function (cb) {
+      fs.copy(
+        path.join(config.STATIC_PATH, t.torrentFileName),
+        path.join(config.TORRENT_PATH, infoHash + '.torrent'),
+        cb
+      )
+    })
+  })
+
+  parallel(tasks, function (err) {
+    if (err) return cb(err)
+    cb(null, saved)
+  })
+
+  function createTorrentObject (t) {
+    var torrent = fs.readFileSync(path.join(config.STATIC_PATH, t.torrentFileName))
+    var 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)
+    }
+  }
+}
+
+function getPlayingTorrentSummary () {
+  var infoHash = this.playing.infoHash
+  return this.saved.torrents.find((x) => x.infoHash === infoHash)
+}
+
+function getPlayingFileSummary () {
+  var torrentSummary = this.getPlayingTorrentSummary()
+  if (!torrentSummary) return null
+  return torrentSummary.files[this.playing.fileIndex]
+}
+
+function load (cb) {
+  var state = getDefaultState()
+
+  appConfig.read(function (err, saved) {
+    if (err || !saved.version) {
+      console.log('Missing config file: Creating new one')
+      setupSavedState(onSaved)
+    } else {
+      onSaved(null, saved)
+    }
+  })
+
+  function onSaved (err, saved) {
+    if (err) return cb(err)
+    state.saved = saved
+    migrations.run(state)
+    cb(null, state)
+  }
+}
+
+// Write state.saved to the JSON state file
+function save (state, cb) {
+  console.log('Saving state to ' + appConfig.filePath)
+  delete state.saveStateTimeout
+
+  // Clean up, so that we're not saving any pending state
+  var 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) {
+      var torrent = {}
+      for (var key in x) {
+        if (key === 'progress' || key === 'torrentKey') {
+          continue // Don't save progress info or key for the webtorrent process
+        }
+        if (key === 'playStatus') {
+          continue // Don't save whether a torrent is playing / pending
+        }
+        torrent[key] = x[key]
+      }
+      return torrent
+    })
+
+  appConfig.write(copy, (err) => {
+    if (err) console.error(err)
+    else State.emit('savedState')
+  })
+}
+
+// Write, but no more than once a second
+function saveThrottled (state) {
+  if (state.saveStateTimeout) return
+  state.saveStateTimeout = setTimeout(function () {
+    if (!state.saveStateTimeout) return
+    save(state)
+  }, 1000)
+}

renderer/lib/telemetry.js

@@ -0,0 +1,152 @@
+// Collects anonymous usage stats and uncaught errors
+// Reports back so that we can improve WebTorrent Desktop
+module.exports = {
+  init,
+  logUncaughtError,
+  logPlayAttempt
+}
+
+const crypto = require('crypto')
+const electron = require('electron')
+const https = require('https')
+const os = require('os')
+const url = require('url')
+
+const config = require('../../config')
+
+var telemetry
+
+function init (state) {
+  telemetry = state.saved.telemetry
+  if (!telemetry) {
+    telemetry = state.saved.telemetry = createSummary()
+    reset()
+  }
+
+  var now = new Date()
+  telemetry.timestamp = now.toISOString()
+  telemetry.localTime = now.toTimeString()
+  telemetry.screens = getScreenInfo()
+  telemetry.system = getSystemInfo()
+  telemetry.approxNumTorrents = getApproxNumTorrents(state)
+
+  if (config.IS_PRODUCTION) {
+    postToServer()
+  } else {
+    // Development: telemetry used only for local debugging
+    // Empty uncaught errors, etc at the start of every run
+    reset()
+  }
+}
+
+function reset () {
+  telemetry.uncaughtErrors = []
+  telemetry.playAttempts = {
+    total: 0,
+    success: 0,
+    timeout: 0,
+    error: 0,
+    abandoned: 0
+  }
+}
+
+function postToServer () {
+  // Serialize the telemetry summary
+  var payload = new Buffer(JSON.stringify(telemetry), 'utf8')
+
+  // POST to our server
+  var options = url.parse(config.TELEMETRY_URL)
+  options.method = 'POST'
+  options.headers = {
+    'Content-Type': 'application/json',
+    'Content-Length': payload.length
+  }
+
+  var req = https.request(options, function (res) {
+    if (res.statusCode === 200) {
+      console.log('Successfully posted telemetry summary')
+      reset()
+    } else {
+      console.error('Couldn\'t post telemetry summary, got HTTP ' + res.statusCode)
+    }
+  })
+  req.on('error', function (e) {
+    console.error('Couldn\'t post telemetry summary', e)
+  })
+  req.write(payload)
+  req.end()
+}
+
+// Creates a new telemetry summary. Gives the user a unique ID,
+// collects screen resolution, etc
+function createSummary () {
+  // Make a 256-bit random unique ID
+  var userID = crypto.randomBytes(32).toString('hex')
+  return { userID }
+}
+
+// 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 () {
+  return {
+    osPlatform: process.platform,
+    osRelease: os.type() + ' ' + os.release(),
+    architecture: os.arch(),
+    totalMemoryMB: os.totalmem() / (1 << 20),
+    numCores: os.cpus().length
+  }
+}
+
+// Get the number of torrents, rounded to the nearest power of two
+function getApproxNumTorrents (state) {
+  var exactNum = state.saved.torrents.length
+  if (exactNum === 0) return 0
+  // Otherwise, return 1, 2, 4, 8, etc by rounding in log space
+  var log2 = Math.log(exactNum) / Math.log(2)
+  return 1 << Math.round(log2)
+}
+
+// An uncaught error happened in the main process or in one of the windows
+function logUncaughtError (procName, err) {
+  console.error('uncaught error', procName, err)
+
+  // Not initialized yet? Ignore.
+  // Hopefully uncaught errors immediately on startup are fixed in dev
+  if (!telemetry) return
+
+  var message, stack
+  if (err instanceof Error) {
+    message = err.message
+    stack = err.stack
+  } else {
+    message = String(err)
+    stack = ''
+  }
+
+  // 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)
+
+  telemetry.uncaughtErrors.push({process: procName, message, stack})
+}
+
+// The user pressed play. It either worked, timed out, or showed the
+// "Play in VLC" codec error
+function logPlayAttempt (result) {
+  if (!['success', 'timeout', 'error', 'abandoned'].includes(result)) {
+    return console.error('Unknown play attempt result', result)
+  }
+
+  var attempts = telemetry.playAttempts
+  attempts.total = (attempts.total || 0) + 1
+  attempts[result] = (attempts[result] || 0) + 1
+}

renderer/lib/torrent-player.js

@@ -2,20 +2,21 @@ module.exports = {
   isPlayable,
   isVideo,
   isAudio,
-  isPlayableTorrent
+  isTorrent,
+  isPlayableTorrentSummary,
+  pickFileToPlay
 }
 
 var path = require('path')
 
-/**
- * Determines whether a file in a torrent is audio/video we can play
- */
+// 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) {
-  var ext = path.extname(file.name).toLowerCase()
   return [
     '.avi',
     '.m4v',
@@ -24,21 +25,59 @@ function isVideo (file) {
     '.mp4',
     '.mpg',
     '.ogv',
-    '.webm'
-  ].includes(ext)
+    '.webm',
+    '.wmv'
+  ].includes(getFileExtension(file))
 }
 
+// Checks whether a fileSummary or file path is playable audio
 function isAudio (file) {
-  var ext = path.extname(file.name).toLowerCase()
   return [
     '.aac',
     '.ac3',
     '.mp3',
     '.ogg',
     '.wav'
-  ].includes(ext)
+  ].includes(getFileExtension(file))
 }
 
-function isPlayableTorrent (torrentSummary) {
+// 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) {
+  var isTorrentFile = getFileExtension(file) === '.torrent'
+  var isMagnet = typeof file === 'string' && /^(stream-)?magnet:/.test(file)
+  return isTorrentFile || isMagnet
+}
+
+function getFileExtension (file) {
+  var name = typeof file === 'string' ? file : file.name
+  return path.extname(name).toLowerCase()
+}
+
+function isPlayableTorrentSummary (torrentSummary) {
   return torrentSummary.files && torrentSummary.files.some(isPlayable)
 }
+
+// Picks the default file to play from a list of torrent or torrentSummary files
+// Returns an index or undefined, if no files are playable
+function pickFileToPlay (files) {
+  // first, try to find the biggest video file
+  var videoFiles = files.filter(isVideo)
+  if (videoFiles.length > 0) {
+    var largestVideoFile = videoFiles.reduce(function (a, b) {
+      return a.length > b.length ? a : b
+    })
+    return files.indexOf(largestVideoFile)
+  }
+
+  // if there are no videos, play the first audio file
+  var audioFiles = files.filter(isAudio)
+  if (audioFiles.length > 0) {
+    return files.indexOf(audioFiles[0])
+  }
+
+  // no video or audio means nothing is playable
+  return undefined
+}

renderer/lib/torrent-poster.js

@@ -16,7 +16,7 @@ function torrentPoster (torrent, cb) {
   if (videoFile) return torrentPosterFromVideo(videoFile, torrent, cb)
 
   // Third, try to use the largest image file
-  var imgFile = getLargestFileByExtension(torrent, ['.gif', '.jpg', '.png'])
+  var imgFile = getLargestFileByExtension(torrent, ['.gif', '.jpg', '.jpeg', '.png'])
   if (imgFile) return torrentPosterFromImage(imgFile, torrent, cb)
 
   // TODO: generate a waveform from the largest sound file

renderer/lib/torrent-summary.js

@@ -1,6 +1,9 @@
 module.exports = {
   getPosterPath,
-  getTorrentPath
+  getTorrentPath,
+  getByKey,
+  getTorrentID,
+  getFileOrFolder
 }
 
 var path = require('path')
@@ -10,15 +13,44 @@ var config = require('../../config')
 // 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.CONFIG_TORRENT_PATH, torrentSummary.torrentFileName)
+  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
-  var posterPath = path.join(config.CONFIG_POSTER_PATH, torrentSummary.posterFileName)
+  var 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) {
+  var 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) {
+  var ts = torrentSummary
+  return path.join(ts.path, ts.files[0].path.split('/')[0])
+}

renderer/main.css

@@ -65,7 +65,7 @@ table {
   display: flex;
   flex-flow: column;
   background: rgb(40, 40, 40);
-  animation: fadein 1s;
+  animation: fadein 0.5s;
 }
 
 .app:not(.is-focused) {
@@ -260,7 +260,7 @@ table {
 
 .modal .modal-content {
   position: fixed;
-  top: 45px;
+  top: 38px;
   left: 0;
   right: 0;
   margin: 0 auto;
@@ -280,36 +280,36 @@ table {
   width: 100%;
 }
 
-.create-torrent-page {
+.create-torrent {
   padding: 10px 25px;
   overflow: hidden;
 }
 
-.create-torrent-page .torrent-attribute {
+.create-torrent .torrent-attribute {
   white-space: nowrap;
 }
 
-.create-torrent-page .torrent-attribute>* {
+.create-torrent .torrent-attribute>* {
   display: inline-block;
 }
 
-.create-torrent-page .torrent-attribute label {
+.create-torrent .torrent-attribute label {
   width: 60px;
   margin-right: 10px;
   vertical-align: top;
 }
 
-.create-torrent-page .torrent-attribute>div {
+.create-torrent .torrent-attribute>div {
   width: calc(100% - 90px);
 }
 
-.create-torrent-page .torrent-attribute div {
+.create-torrent .torrent-attribute div {
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
 }
 
-.create-torrent-page .torrent-attribute textarea {
+.create-torrent .torrent-attribute textarea {
   width: calc(100% - 80px);
   height: 80px;
   color: #eee;
@@ -321,12 +321,11 @@ table {
   padding: 4px 6px;
 }
 
-.create-torrent-page textarea.torrent-trackers {
+.create-torrent textarea.torrent-trackers {
   height: 200px;
 }
 
-.create-torrent-page input.torrent-is-private {
-  width: initial;
+.create-torrent input.torrent-is-private {
   margin: 0;
 }
 
@@ -404,7 +403,7 @@ button.button-raised:active {
  * OTHER FORM ELEMENT DEFAULTS
  */
 
-input {
+input[type='text'] {
   background: transparent;
   width: 300px;
   padding: 6px;
@@ -605,6 +604,10 @@ body.drag .app::after {
   padding: 8em 0 20px 0;
 }
 
+.torrent-details .warning {
+  padding-left: 15px;
+}
+
 .torrent-details table {
   width: 100%;
   white-space: nowrap;
@@ -711,10 +714,7 @@ body.drag .app::after {
   font-size: 22px;
   opacity: 0.85;
 
-  /*
-   * Fix for overflowing captions icon
-   * https://github.com/feross/webtorrent-desktop/issues/467
-   */
+  /* Make all icons have uniform spacing */
   max-width: 23px;
   overflow: hidden;
 }
@@ -750,7 +750,7 @@ body.drag .app::after {
   opacity: 0.8;
 }
 
-.player .controls .icon.closed-captions {
+.player .controls .icon.closed-caption {
   font-size: 26px;
   margin-top: 6px;
 }
@@ -818,7 +818,7 @@ body.drag .app::after {
   transition-timing-function: ease-out;
 }
 
-.player .controls .closed-captions.active,
+.player .controls .closed-caption.active,
 .player .controls .device.active {
   color: #9af;
 }
@@ -847,6 +847,28 @@ body.drag .app::after {
   height: 14px;
 }
 
+.player .controls .options-list {
+  position: fixed;
+  background: rgba(40, 40, 40, 0.8);
+  min-width: 100px;
+  bottom: 45px;
+  right: 3px;
+  transition: opacity 0.15s ease-out;
+  padding: 5px 10px;
+  border-radius: 3px;
+  margin: 0;
+  list-style-type: none;
+  color: rgba(255, 255, 255, 0.8);
+}
+
+.player .controls .options-list .icon {
+  display: inline;
+  font-size: 17px;
+  vertical-align: bottom;
+  line-height: 21px;
+  margin: 4px;
+}
+
 /**
  * Set the cue text position so it appears above the player controls.
  */
@@ -889,29 +911,6 @@ video::-webkit-media-text-track-container {
   font-weight: bold;
 }
 
-/*
- * Subtitles list
- */
-
-.subtitles-list {
-  position: fixed;
-  background: rgba(40, 40, 40, 0.8);
-  min-width: 100px;
-  bottom: 45px;
-  right: 3px;
-  transition: opacity 0.15s ease-out;
-  padding: 5px 10px;
-  border-radius: 3px;
-  margin: 0;
-  list-style-type: none;
-  color: rgba(255, 255, 255, 0.8);
-}
-
-.subtitles-list i {
-  font-size: 11px; /* make the cast icons less huge */
-  margin-right: 4px !important;
-}
-
 /*
  * Preferences page, based on Atom settings style
  */

renderer/main.html

@@ -3,9 +3,9 @@
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <link rel="stylesheet" href="index.css" charset="utf-8">
+    <link rel="stylesheet" href="main.css" charset="utf-8">
   </head>
   <body>
-    <script async src="index.js"></script>
+    <script async src="main.js"></script>
   </body>
 </html>

renderer/main.js

@@ -0,0 +1,447 @@
+console.time('init')
+
+const crashReporter = require('../crash-reporter')
+crashReporter.init()
+
+const dragDrop = require('drag-drop')
+const electron = require('electron')
+const mainLoop = require('main-loop')
+
+const createElement = require('virtual-dom/create-element')
+const diff = require('virtual-dom/diff')
+const patch = require('virtual-dom/patch')
+
+const config = require('../config')
+const App = require('./views/app')
+const telemetry = require('./lib/telemetry')
+const sound = require('./lib/sound')
+const State = require('./lib/state')
+const TorrentPlayer = require('./lib/torrent-player')
+
+const MediaController = require('./controllers/media-controller')
+const UpdateController = require('./controllers/update-controller')
+const PrefsController = require('./controllers/prefs-controller')
+const PlaybackController = require('./controllers/playback-controller')
+const SubtitlesController = require('./controllers/subtitles-controller')
+const TorrentListController = require('./controllers/torrent-list-controller')
+const TorrentController = require('./controllers/torrent-controller')
+
+// 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
+var controllers = null
+
+// This dependency is the slowest-loading, so we lazy load it
+var Cast = null
+
+// 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
+var ipcRenderer = electron.ipcRenderer
+
+// 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.
+var state, vdomLoop
+
+State.load(onState)
+
+// 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)
+  state = _state
+
+  // Create controllers
+  controllers = {
+    media: new MediaController(state),
+    update: new UpdateController(state),
+    prefs: new PrefsController(state, config),
+    playback: new PlaybackController(state, config, update),
+    subtitles: new SubtitlesController(state),
+    torrentList: new TorrentListController(state),
+    torrent: new TorrentController(state)
+  }
+
+  // Add first page to location history
+  state.location.go({ url: 'home' })
+
+  // Restart everything we were torrenting last time the app ran
+  resumeTorrents()
+
+  // Lazy-load other stuff, like the AppleTV module, later to keep startup fast
+  window.setTimeout(delayedInit, config.DELAYED_INIT)
+
+  // The UI is built with virtual-dom, a minimalist library extracted from React
+  // The concepts--one way data flow, a pure function that renders state to a
+  // virtual DOM tree, and a diff that applies changes in the vdom to the real
+  // DOM, are all the same. Learn more: https://facebook.github.io/react/
+  vdomLoop = mainLoop(state, render, {
+    create: createElement,
+    diff: diff,
+    patch: patch
+  })
+  document.body.appendChild(vdomLoop.target)
+
+  // Listen for messages from the main process
+  setupIpc()
+
+  // 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)
+
+  // OS integrations:
+  // ...drag and drop a torrent or video file to play or seed
+  dragDrop('body', 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)
+
+  // ...window visibility state.
+  document.addEventListener('webkitvisibilitychange', onVisibilityChange)
+
+  // Log uncaught JS errors
+  window.addEventListener('error',
+    (e) => telemetry.logUncaughtError('window', e.error || e.target), true)
+
+  // Done! Ideally we want to get here < 500ms after the user clicks the app
+  sound.play('STARTUP')
+  console.timeEnd('init')
+}
+
+// Runs a few seconds after the app loads, to avoid slowing down startup time
+function delayedInit () {
+  lazyLoadCast()
+  sound.preload()
+  telemetry.init(state)
+}
+
+// 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
+}
+
+// This is the (mostly) pure function from state -> UI. Returns a virtual DOM
+// tree. Any events, such as button clicks, will turn into calls to dispatch()
+function render (state) {
+  try {
+    return App(state)
+  } catch (e) {
+    console.log('rendering error: %s\n\t%s', e.message, e.stack)
+  }
+}
+
+// Calls render() to go from state -> UI, then applies to vdom to the real DOM.
+function update () {
+  controllers.playback.showOrHidePlayerControls()
+  vdomLoop.update(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 !== state.prev.progress) {
+    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 || '')
+  }
+}
+
+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),
+  'toggleCreateTorrentAdvanced': () => controllers.torrentList.toggleCreateTorrentAdvanced(),
+  'createTorrent': (options) => controllers.torrentList.createTorrent(options),
+  'toggleTorrent': (infoHash) => controllers.torrentList.toggleTorrent(infoHash),
+  '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': (torrentSummary) =>
+    controllers.torrentList.startTorrentingSummary(torrentSummary),
+
+  // Playback
+  'playFile': (infoHash, index) => controllers.playback.playFile(infoHash, index),
+  'playPause': () => controllers.playback.playPause(),
+  '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>, VLC
+  'mediaStalled': () => controllers.media.mediaStalled(),
+  'mediaError': (err) => controllers.media.mediaError(err),
+  'mediaSuccess': () => controllers.media.mediaSuccess(),
+  'mediaTimeUpdate': () => controllers.media.mediaTimeUpdate(),
+  'mediaMouseMoved': () => controllers.media.mediaMouseMoved(),
+  'vlcPlay': () => controllers.media.vlcPlay(),
+  'vlcNotFound': () => controllers.media.vlcNotFound(),
+
+  // 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),
+
+  // 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(),
+
+  // Controlling the window
+  'setDimensions': setDimensions,
+  'toggleFullScreen': (setTo) => ipcRenderer.send('toggleFullScreen', setTo),
+  'setTitle': (title) => { state.window.title = title },
+
+  // Everything else
+  'onOpen': onOpen,
+  'error': onError,
+  'uncaughtError': (proc, err) => telemetry.logUncaughtError(proc, err),
+  'saveState': () => State.save(state),
+  'saveStateThrottled': () => State.saveThrottled(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
+  if (!['mediaMouseMoved', 'mediaTimeUpdate'].includes(action)) {
+    console.log('dispatch: %s %o', action, args)
+  }
+
+  var 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)
+
+  var 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('savedState', () => ipcRenderer.send('savedState'))
+}
+
+// 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
+    var contentTag = document.querySelector('.content')
+    if (contentTag) contentTag.scrollTop = 0
+
+    // Work around virtual-dom issue: it doesn't expose its redraw function,
+    // and only redraws on requestAnimationFrame(). That means when the user
+    // closes the window (hide window / minimize to tray) and we want to pause
+    // the video, we update the vdom but it keeps playing until you reopen!
+    var mediaTag = document.querySelector('video,audio')
+    if (mediaTag) mediaTag.pause()
+  })
+}
+
+// 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
+    .filter((torrentSummary) => torrentSummary.status !== 'paused')
+    .forEach((torrentSummary) => controllers.torrentList.startTorrentingSummary(torrentSummary))
+}
+
+// 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
+  var screenWidth = window.screen.width
+  var screenHeight = window.screen.height
+  var aspectRatio = dimensions.width / dimensions.height
+  var scaleFactor = Math.min(
+    Math.min(screenWidth / dimensions.width, 1),
+    Math.min(screenHeight / dimensions.height, 1)
+  )
+  var width = Math.max(
+    Math.floor(dimensions.width * scaleFactor),
+    config.WINDOW_MIN_WIDTH
+  )
+  var height = Math.max(
+    Math.floor(dimensions.height * scaleFactor),
+    config.WINDOW_MIN_HEIGHT
+  )
+
+  ipcRenderer.send('setAspectRatio', aspectRatio)
+  ipcRenderer.send('setBounds', {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 ]
+
+  if (state.modal) {
+    state.modal = null
+  }
+
+  var subtitles = files.filter(controllers.subtitles.isSubtitle)
+
+  if (state.location.url() === 'home' || subtitles.length === 0) {
+    if (files.every(TorrentPlayer.isTorrent)) {
+      if (state.location.url() !== 'home') {
+        backToList()
+      }
+      // All .torrent files? Add them.
+      files.forEach((file) => controllers.torrentList.addTorrent(file))
+    } else {
+      // Show the Create Torrent screen. Let's seed those files.
+      controllers.torrentList.showCreateTorrent(files)
+    }
+  } else if (state.location.url() === 'player') {
+    controllers.subtitles.addSubtitles(subtitles, true)
+  }
+
+  update()
+}
+
+function onError (err) {
+  console.error(err.stack || err)
+  sound.play('ERROR')
+  state.errors.push({
+    time: new Date().getTime(),
+    message: err.message || err
+  })
+
+  update()
+}
+
+function onPaste (e) {
+  if (e.target.tagName.toLowerCase() === 'input') return
+
+  var torrentIds = electron.clipboard.readText().split('\n')
+  torrentIds.forEach(function (torrentId) {
+    torrentId = torrentId.trim()
+    if (torrentId.length === 0) return
+    controllers.torrentList.addTorrent(torrentId)
+  })
+
+  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 (OS X)
+    ipcRenderer.send('setAspectRatio', state.playing.aspectRatio)
+  }
+
+  update()
+}

renderer/state.js

@@ -1,286 +0,0 @@
-var electron = require('electron')
-var path = require('path')
-
-var remote = electron.remote
-
-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.
-     * It must never contain absolute paths since we have a portable app.
-     *
-     * 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: {},
-
-    /*
-     * Getters, for convenience
-     */
-    getPlayingTorrentSummary,
-    getPlayingFileSummary
-  }
-}
-
-/* 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 */
-    playbackRate: 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 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: [
-          {
-            length: 276134947,
-            name: 'bbb_sunflower_1080p_30fps_normal.mp4'
-          }
-        ]
-      },
-      {
-        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: [
-          {
-            length: 129241752,
-            name: 'sintel.mp4'
-          }
-        ]
-      },
-      {
-        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: [
-          {
-            length: 571346576,
-            name: 'tears_of_steel_1080p.webm'
-          }
-        ]
-      },
-      {
-        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: [
-          {
-            length: 223580,
-            name: 'Cosmos Laundromat - First Cycle (1080p).gif'
-          },
-          {
-            length: 220087570,
-            name: 'Cosmos Laundromat - First Cycle (1080p).mp4'
-          },
-          {
-            length: 56832560,
-            name: 'Cosmos Laundromat - First Cycle (1080p).ogv'
-          },
-          {
-            length: 3949,
-            name: 'CosmosLaundromat-FirstCycle1080p.en.srt'
-          },
-          {
-            length: 3907,
-            name: 'CosmosLaundromat-FirstCycle1080p.es.srt'
-          },
-          {
-            length: 4119,
-            name: 'CosmosLaundromat-FirstCycle1080p.fr.srt'
-          },
-          {
-            length: 3941,
-            name: 'CosmosLaundromat-FirstCycle1080p.it.srt'
-          },
-          {
-            length: 11264,
-            name: 'CosmosLaundromatFirstCycle_meta.sqlite'
-          },
-          {
-            length: 1204,
-            name: 'CosmosLaundromatFirstCycle_meta.xml'
-          }
-        ]
-      },
-      {
-        status: 'paused',
-        infoHash: '3ba219a8634bf7bae3d848192b2da75ae995589d',
-        magnetURI: 'magnet:?xt=urn:btih:3ba219a8634bf7bae3d848192b2da75ae995589d&dn=The+WIRED+CD+-+Rip.+Sample.+Mash.+Share.&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%2F',
-        displayName: 'The WIRED CD - Rip. Sample. Mash. Share.',
-        posterURL: 'wired-cd.jpg',
-        torrentPath: 'wired-cd.torrent',
-        files: [
-          {
-            length: 1964275,
-            name: '01 - Beastie Boys - Now Get Busy.mp3'
-          },
-          {
-            length: 3610523,
-            name: '02 - David Byrne - My Fair Lady.mp3'
-          },
-          {
-            length: 2759377,
-            name: '03 - Zap Mama - Wadidyusay.mp3'
-          },
-          {
-            length: 5816537,
-            name: '04 - My Morning Jacket - One Big Holiday.mp3'
-          },
-          {
-            length: 2106421,
-            name: '05 - Spoon - Revenge!.mp3'
-          },
-          {
-            length: 3347550,
-            name: '06 - Gilberto Gil - Oslodum.mp3'
-          },
-          {
-            length: 2107577,
-            name: '07 - Dan The Automator - Relaxation Spa Treatment.mp3'
-          },
-          {
-            length: 3108130,
-            name: '08 - Thievery Corporation - Dc 3000.mp3'
-          },
-          {
-            length: 3051528,
-            name: '09 - Le Tigre - Fake French.mp3'
-          },
-          {
-            length: 3270259,
-            name: '10 - Paul Westerberg - Looking Up In Heaven.mp3'
-          },
-          {
-            length: 3263528,
-            name: '11 - Chuck D - No Meaning No (feat. Fine Arts Militia).mp3'
-          },
-          {
-            length: 6380952,
-            name: '12 - The Rapture - Sister Saviour (Blackstrobe Remix).mp3'
-          },
-          {
-            length: 6550396,
-            name: '13 - Cornelius - Wataridori 2.mp3'
-          },
-          {
-            length: 3034692,
-            name: '14 - DJ Danger Mouse - What U Sittin\' On (feat. Jemini, Cee Lo And Tha Alkaholiks).mp3'
-          },
-          {
-            length: 3854611,
-            name: '15 - DJ Dolores - Oslodum 2004.mp3'
-          },
-          {
-            length: 1762120,
-            name: '16 - Matmos - Action At A Distance.mp3'
-          },
-          {
-            length: 4071,
-            name: 'README.md'
-          },
-          {
-            length: 78163,
-            name: 'poster.jpg'
-          }
-        ]
-      }
-    ],
-    prefs: {
-      downloadPath: config.IS_PORTABLE
-        ? path.join(config.CONFIG_PATH, 'Downloads')
-        : remote.app.getPath('downloads')
-    }
-  }
-}
-
-function getPlayingTorrentSummary () {
-  var infoHash = this.playing.infoHash
-  return this.saved.torrents.find((x) => x.infoHash === infoHash)
-}
-
-function getPlayingFileSummary () {
-  var torrentSummary = this.getPlayingTorrentSummary()
-  if (!torrentSummary) return null
-  return torrentSummary.files[this.playing.fileIndex]
-}

renderer/views/app.js

@@ -1,18 +1,18 @@
 module.exports = App
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
+var hx = require('../lib/hx')
 var Header = require('./header')
+
 var Views = {
   'home': require('./torrent-list'),
   'player': require('./player'),
-  'create-torrent': require('./create-torrent-page'),
+  'create-torrent': require('./create-torrent'),
   'preferences': require('./preferences')
 }
+
 var Modals = {
   'open-torrent-address-modal': require('./open-torrent-address-modal'),
+  'remove-torrent-modal': require('./remove-torrent-modal'),
   'update-available-modal': require('./update-available-modal'),
   'unsupported-media-modal': require('./unsupported-media-modal')
 }

renderer/views/create-torrent.js

@@ -1,14 +1,11 @@
 module.exports = CreateTorrentPage
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
 var createTorrent = require('create-torrent')
 var path = require('path')
 var prettyBytes = require('prettier-bytes')
 
-var {dispatch} = require('../lib/dispatcher')
+var {dispatch, dispatcher} = require('../lib/dispatcher')
+var hx = require('../lib/hx')
 
 function CreateTorrentPage (state) {
   var info = state.location.current()
@@ -17,17 +14,14 @@ function CreateTorrentPage (state) {
   var files = info.files
     .filter((f) => !f.name.startsWith('.'))
     .map((f) => ({name: f.name, path: f.path, size: f.size}))
+  if (files.length === 0) return CreateTorrentErrorPage()
 
   // First, extract the base folder that the files are all in
   var pathPrefix = info.folderPath
   if (!pathPrefix) {
-    if (files.length > 0) {
-      pathPrefix = files.map((x) => x.path).reduce(findCommonPrefix)
-      if (!pathPrefix.endsWith('/') && !pathPrefix.endsWith('\\')) {
-        pathPrefix = path.dirname(pathPrefix)
-      }
-    } else {
-      pathPrefix = files[0]
+    pathPrefix = files.map((x) => x.path).reduce(findCommonPrefix)
+    if (!pathPrefix.endsWith('/') && !pathPrefix.endsWith('\\')) {
+      pathPrefix = path.dirname(pathPrefix)
     }
   }
 
@@ -62,7 +56,7 @@ function CreateTorrentPage (state) {
   var collapsedClass = info.showAdvanced ? 'expanded' : 'collapsed'
 
   return hx`
-    <div class='create-torrent-page'>
+    <div class='create-torrent'>
       <h2>Create torrent ${defaultName}</h2>
       <p class="torrent-info">
         ${torrentInfo}
@@ -71,7 +65,8 @@ function CreateTorrentPage (state) {
         <label>Path:</label>
         <div class='torrent-attribute'>${pathPrefix}</div>
       </p>
-      <div class='expand-collapse ${collapsedClass}' onclick=${handleToggleShowAdvanced}>
+      <div class='expand-collapse ${collapsedClass}'
+           onclick=${dispatcher('toggleCreateTorrentAdvanced')}>
         ${info.showAdvanced ? 'Basic' : 'Advanced'}
       </div>
       <div class="create-torrent-advanced ${collapsedClass}">
@@ -93,7 +88,7 @@ function CreateTorrentPage (state) {
         </p>
       </div>
       <p class="float-right">
-        <button class='button-flat light' onclick=${handleCancel}>Cancel</button>
+        <button class='button-flat light' onclick=${dispatcher('back')}>Cancel</button>
         <button class='button-raised' onclick=${handleOK}>Create Torrent</button>
       </p>
     </div>
@@ -120,17 +115,27 @@ function CreateTorrentPage (state) {
     }
     dispatch('createTorrent', options)
   }
+}
 
-  function handleCancel () {
-    dispatch('back')
-  }
-
-  function handleToggleShowAdvanced () {
-    // TODO: what's the clean way to handle this?
-    // Should every button on every screen have its own dispatch()?
-    info.showAdvanced = !info.showAdvanced
-    dispatch('update')
-  }
+function CreateTorrentErrorPage () {
+  return hx`
+    <div class='create-torrent'>
+      <h2>Create torrent</h2>
+      <p class="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 class="float-right">
+        <button class='button-flat light' onclick=${dispatcher('back')}>
+          Cancel
+        </button>
+      </p>
+    </div>
+  `
 }
 
 // Finds the longest common prefix

renderer/views/header.js

@@ -1,10 +1,7 @@
 module.exports = Header
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
 var {dispatcher} = require('../lib/dispatcher')
+var hx = require('../lib/hx')
 
 function Header (state) {
   return hx`
@@ -42,7 +39,7 @@ function Header (state) {
         <i
           class='icon add'
           title='Add torrent'
-          onclick=${dispatcher('showOpenTorrentFile')}>
+          onclick=${dispatcher('openFiles')}>
           add
         </i>
       `

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

@@ -1,10 +1,7 @@
 module.exports = OpenTorrentAddressModal
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
-var {dispatch} = require('../lib/dispatcher')
+var {dispatch, dispatcher} = require('../lib/dispatcher')
+var hx = require('../lib/hx')
 
 function OpenTorrentAddressModal (state) {
   return hx`
@@ -14,8 +11,8 @@ function OpenTorrentAddressModal (state) {
         <input id='add-torrent-url' type='text' onkeypress=${handleKeyPress} />
       </p>
       <p class='float-right'>
-        <button class='button button-flat' onclick=${handleCancel}>CANCEL</button>
-          <button class='button button-raised' onclick=${handleOK}>OK</button>
+        <button class='button button-flat' onclick=${dispatcher('exitModal')}>Cancel</button>
+        <button class='button button-raised' onclick=${handleOK}>OK</button>
       </p>
       <script>document.querySelector('#add-torrent-url').focus()</script>
     </div>
@@ -30,7 +27,3 @@ function handleOK () {
   dispatch('exitModal')
   dispatch('addTorrent', document.querySelector('#add-torrent-url').value)
 }
-
-function handleCancel () {
-  dispatch('exitModal')
-}

renderer/views/player.js

@@ -1,13 +1,10 @@
 module.exports = Player
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
 var Bitfield = require('bitfield')
 var prettyBytes = require('prettier-bytes')
 var zeroFill = require('zero-fill')
 
+var hx = require('../lib/hx')
 var TorrentSummary = require('../lib/torrent-summary')
 var {dispatch, dispatcher} = require('../lib/dispatcher')
 
@@ -37,7 +34,8 @@ function renderMedia (state) {
 
   // Unfortunately, play/pause can't be done just by modifying HTML.
   // Instead, grab the DOM node and play/pause it if necessary
-  var mediaElement = document.querySelector(state.playing.type) /* get the <video> or <audio> tag */
+  // Get the <video> or <audio> tag
+  var mediaElement = document.querySelector(state.playing.type)
   if (mediaElement !== null) {
     if (state.playing.isPaused && !mediaElement.paused) {
       mediaElement.pause()
@@ -45,13 +43,19 @@ function renderMedia (state) {
       mediaElement.play()
     }
     // When the user clicks or drags on the progress bar, jump to that position
-    if (state.playing.jumpToTime) {
+    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
@@ -59,15 +63,25 @@ function renderMedia (state) {
     }
 
     // Switch to the newly added subtitle track, if available
-    var tracks = mediaElement.textTracks
+    var tracks = mediaElement.textTracks || []
     for (var j = 0; j < tracks.length; j++) {
-      tracks[j].mode = (j === state.playing.subtitles.selectedIndex) ? 'showing' : 'hidden'
+      var isSelectedTrack = j === state.playing.subtitles.selectedIndex
+      tracks[j].mode = isSelectedTrack ? 'showing' : 'hidden'
     }
 
     // Save video position
     var 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) {
+      var 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
   }
 
@@ -114,7 +128,7 @@ function renderMedia (state) {
     </div>
   `
 
-  // As soon as the video loads enough to know the video dimensions, resize the window
+  // As soon as we know the video dimensions, resize the window
   function onLoadedMetadata (e) {
     if (state.playing.type !== 'video') return
     var video = e.target
@@ -132,11 +146,13 @@ function renderMedia (state) {
 
   function onCanPlay (e) {
     var elem = e.target
-    if (state.playing.type === 'video' && elem.webkitVideoDecodedByteCount === 0) {
+    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()
     }
   }
@@ -157,7 +173,8 @@ function renderOverlay (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. */
+    // Video playing, so no spinner. No overlay needed
+    return
   }
 
   return hx`
@@ -187,15 +204,37 @@ function renderAudioMetadata (state) {
     track = info.track.no + ' of ' + info.track.of
   }
 
-  // Show a small info box in the middle of the screen with title/album/artist/etc
+  // Show a small info box in the middle of the screen with title/album/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>${track}</div>`)
+  if (artist) {
+    elems.push(hx`
+      <div class='audio-artist'>
+        <label>Artist</label>${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
+  // Align the title with the other info, if available. Otherwise, center title
   var emptyLabel = hx`<label></label>`
-  elems.unshift(hx`<div class='audio-title'>${elems.length ? emptyLabel : undefined}${title}</div>`)
+  elems.unshift(hx`
+    <div class='audio-title'>
+      ${elems.length ? emptyLabel : undefined}${title}
+    </div>
+  `)
 
   return hx`<div class='audio-metadata'>${elems}</div>`
 }
@@ -250,8 +289,10 @@ function renderCastScreen (state) {
   }
 
   var isStarting = state.playing.location.endsWith('-pending')
+  var castName = state.playing.castName
   var castStatus
-  if (isCast) castStatus = isStarting ? 'Connecting...' : 'Connected'
+  if (isCast && isStarting) castStatus = 'Connecting to ' + castName + '...'
+  else if (isCast && !isStarting) castStatus = 'Connected to ' + castName
   else castStatus = ''
 
   // Show a nice title image, if possible
@@ -270,6 +311,30 @@ function renderCastScreen (state) {
   `
 }
 
+function renderCastOptions (state) {
+  if (!state.devices.castMenu) return
+
+  var {location, devices} = state.devices.castMenu
+  var player = state.devices[location]
+
+  var items = devices.map(function (device, ix) {
+    var isSelected = player.device === device
+    var name = device.name
+    return hx`
+      <li onclick=${dispatcher('selectCastDevice', ix)}>
+        <i.icon>${isSelected ? 'radio_button_checked' : 'radio_button_unchecked'}</i>
+        ${name}
+      </li>
+    `
+  })
+
+  return hx`
+    <ul.options-list>
+      ${items}
+    </ul>
+  `
+}
+
 function renderSubtitlesOptions (state) {
   var subtitles = state.playing.subtitles
   if (!subtitles.tracks.length || !subtitles.showMenu) return
@@ -278,18 +343,19 @@ function renderSubtitlesOptions (state) {
     var isSelected = state.playing.subtitles.selectedIndex === ix
     return hx`
       <li onclick=${dispatcher('selectSubtitle', ix)}>
-        <i.icon>${isSelected ? 'radio_button_checked' : 'radio_button_unchecked'}</i>
+        <i.icon>${'radio_button_' + (isSelected ? 'checked' : 'unchecked')}</i>
         ${track.label}
       </li>
     `
   })
 
   var noneSelected = state.playing.subtitles.selectedIndex === -1
+  var noneClass = 'radio_button_' + (noneSelected ? 'checked' : 'unchecked')
   return hx`
-    <ul.subtitles-list>
+    <ul.options-list>
       ${items}
       <li onclick=${dispatcher('selectSubtitle', -1)}>
-        <i.icon>${noneSelected ? 'radio_button_checked' : 'radio_button_unchecked'}</i>
+        <i.icon>${noneClass}</i>
         None
       </li>
     </ul>
@@ -339,84 +405,68 @@ function renderPlayerControls (state) {
   if (state.playing.type === 'video') {
     // show closed captions icon
     elements.push(hx`
-      <i.icon.closed-captions.float-right
+      <i.icon.closed-caption.float-right
         class=${captionsClass}
         onclick=${handleSubtitles}>
-        closed_captions
+        closed_caption
       </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.float-right
-        class=${chromecastClass}
-        onclick=${chromecastHandler}>
-        ${castIcon}
-      </i>
-    `)
-  }
-  if (state.devices.airplay || isOnAirplay) {
-    elements.push(hx`
-      <i.icon.device.float-right
-        class=${airplayClass}
-        onclick=${airplayHandler}>
-        airplay
-      </i>
-    `)
-  }
-  if (state.devices.dlna || isOnDlna) {
-    elements.push(hx`
-      <i
-        class='icon device float-right'
-        class=${dlnaClass}
-        onclick=${dlnaHandler}>
-        tv
-      </i>
-    `)
-  }
+  var castTypes = ['chromecast', 'airplay', 'dlna']
+  var isCastingAnywhere = castTypes.some(
+    (castType) => state.playing.location.startsWith(castType))
 
-  // render volume
+  // Add the cast buttons. Icons for each cast type, connected/disconnected:
+  var 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?
+    var isCasting = state.playing.location.startsWith(castType)
+    var player = state.devices[castType]
+    if ((!player || player.getDevices().length === 0) && !isCasting) return
+
+    // Show the button. Three options for eg the Chromecast button:
+    var 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)
+    }
+    var buttonIcon = buttonIcons[castType][isCasting]
+
+    elements.push(hx`
+      <i.icon.device.float-right
+        class=${buttonClass}
+        onclick=${buttonHandler}>
+        ${buttonIcon}
+      </i>
+    `)
+  })
+
+  // Render volume slider
   var volume = state.playing.volume
-  var volumeIcon = 'volume_' + (volume === 0 ? 'off' : volume < 0.3 ? 'mute' : volume < 0.6 ? 'down' : 'up')
-  var volumeStyle = { background: '-webkit-gradient(linear, left top, right top, ' +
-    'color-stop(' + (volume * 100) + '%, #eee), ' +
-    'color-stop(' + (volume * 100) + '%, #727272))'
+  var volumeIcon = 'volume_' + (
+    volume === 0 ? 'off'
+    : volume < 0.3 ? 'mute'
+    : volume < 0.6 ? 'down'
+    : 'up')
+  var volumeStyle = {
+    background: '-webkit-gradient(linear, left top, right top, ' +
+      'color-stop(' + (volume * 100) + '%, #eee), ' +
+      'color-stop(' + (volume * 100) + '%, #727272))'
   }
 
   elements.push(hx`
@@ -428,7 +478,8 @@ function renderPlayerControls (state) {
       </i>
       <input
         class='volume-slider float-right'
-        type='range' min='0' max='1' step='0.05' value=${volumeChanging !== false ? volumeChanging : volume}
+        type='range' min='0' max='1' step='0.05'
+        value=${volumeChanging !== false ? volumeChanging : volume}
         onmousedown=${handleVolumeScrub}
         onmouseup=${handleVolumeScrub}
         onmousemove=${handleVolumeScrub}
@@ -438,9 +489,11 @@ function renderPlayerControls (state) {
   `)
 
   // Show video playback progress
+  var currentTimeStr = formatTime(state.playing.currentTime)
+  var durationStr = formatTime(state.playing.duration)
   elements.push(hx`
     <span class='time float-left'>
-      ${formatTime(state.playing.currentTime)} / ${formatTime(state.playing.duration)}
+      ${currentTimeStr} / ${durationStr}
     </span>
   `)
 
@@ -456,6 +509,7 @@ function renderPlayerControls (state) {
   return hx`
     <div class='controls'>
       ${elements}
+      ${renderCastOptions(state)}
       ${renderSubtitlesOptions(state)}
     </div>
   `
@@ -470,11 +524,12 @@ function renderPlayerControls (state) {
 
   // Handles a click or drag to scrub (jump to another position in the video)
   function handleScrub (e) {
+    if (!e.clientX) return
     dispatch('mediaMouseMoved')
     var windowWidth = document.querySelector('body').clientWidth
     var fraction = e.clientX / windowWidth
     var position = fraction * state.playing.duration /* seconds */
-    dispatch('playbackJump', position)
+    dispatch('skipTo', position)
   }
 
   // Handles volume muting and Unmuting

renderer/views/preferences.js

@@ -1,8 +1,6 @@
 module.exports = Preferences
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
+var hx = require('../lib/hx')
 var {dispatch} = require('../lib/dispatcher')
 
 var remote = require('electron').remote

renderer/views/remove-torrent-modal.js

@@ -0,0 +1,26 @@
+module.exports = RemoveTorrentModal
+
+var {dispatch, dispatcher} = require('../lib/dispatcher')
+var hx = require('../lib/hx')
+
+function RemoveTorrentModal (state) {
+  var 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?'
+  var buttonText = state.modal.deleteData ? 'Remove Data' : 'Remove'
+
+  return hx`
+    <div>
+      <p><strong>${message}</strong></p>
+      <p class='float-right'>
+        <button class='button button-flat' onclick=${dispatcher('exitModal')}>Cancel</button>
+        <button class='button button-raised' onclick=${handleRemove}>${buttonText}</button>
+      </p>
+    </div>
+  `
+
+  function handleRemove () {
+    dispatch('deleteTorrent', state.modal.infoHash, state.modal.deleteData)
+    dispatch('exitModal')
+  }
+}

renderer/views/torrent-list.js

@@ -1,17 +1,17 @@
 module.exports = TorrentList
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
 var prettyBytes = require('prettier-bytes')
 
+var hx = require('../lib/hx')
 var TorrentSummary = require('../lib/torrent-summary')
 var TorrentPlayer = require('../lib/torrent-player')
 var {dispatcher} = require('../lib/dispatcher')
 
 function TorrentList (state) {
   var torrentRows = state.saved.torrents.map(
-    (torrentSummary) => renderTorrent(torrentSummary))
+    (torrentSummary) => renderTorrent(torrentSummary)
+  )
+
   return hx`
     <div class='torrent-list'>
       ${torrentRows}
@@ -20,11 +20,7 @@ function TorrentList (state) {
       </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
 
@@ -152,12 +148,12 @@ function TorrentList (state) {
 
     // Only show the play button for torrents that contain playable media
     var playButton
-    if (TorrentPlayer.isPlayableTorrent(torrentSummary)) {
+    if (TorrentPlayer.isPlayableTorrentSummary(torrentSummary)) {
       playButton = hx`
         <i.button-round.icon.play
           title=${playTooltip}
           class=${playClass}
-          onclick=${dispatcher('play', infoHash)}>
+          onclick=${dispatcher('playFile', infoHash)}>
           ${playIcon}
         </i>
       `
@@ -176,7 +172,7 @@ function TorrentList (state) {
         <i
           class='icon delete'
           title='Remove torrent'
-          onclick=${dispatcher('deleteTorrent', infoHash)}>
+          onclick=${dispatcher('confirmDeleteTorrent', infoHash, false)}>
           close
         </i>
       </div>
@@ -195,12 +191,13 @@ function TorrentList (state) {
     } else {
       // We do know the files. List them and show download stats for each one
       var fileRows = torrentSummary.files
+        .map((file, index) => ({ file, index }))
         .sort(function (a, b) {
-          if (a.name < b.name) return -1
-          if (b.name < a.name) return 1
+          if (a.file.name < b.file.name) return -1
+          if (b.file.name < a.file.name) return 1
           return 0
         })
-        .map((file, index) => renderFileRow(torrentSummary, file, index))
+        .map((object) => renderFileRow(torrentSummary, object.file, object.index))
 
       filesElement = hx`
         <div class='files'>
@@ -221,7 +218,8 @@ function TorrentList (state) {
   // 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 isSelected = torrentSummary.selections[index] // Are we even torrenting it?
+    // Are we even torrenting it?
+    var isSelected = torrentSummary.selections && torrentSummary.selections[index]
     var isDone = false // Are we finished torrenting it?
     var progress = ''
     if (torrentSummary.progress && torrentSummary.progress.files) {
@@ -244,10 +242,10 @@ function TorrentList (state) {
     var handleClick
     if (isPlayable) {
       icon = 'play_arrow' /* playable? add option to play */
-      handleClick = dispatcher('play', infoHash, index)
+      handleClick = dispatcher('playFile', infoHash, index)
     } else {
       icon = 'description' /* file icon, opens in OS default app */
-      handleClick = dispatcher('openFile', infoHash, index)
+      handleClick = dispatcher('openItem', infoHash, index)
     }
     var rowClass = ''
     if (!isSelected) rowClass = 'disabled' // File deselected, not being torrented

renderer/views/unsupported-media-modal.js

@@ -1,12 +1,9 @@
 module.exports = UnsupportedMediaModal
 
-var h = require('virtual-dom/h')
-var hyperx = require('hyperx')
-var hx = hyperx(h)
-
 var electron = require('electron')
 
 var {dispatch, dispatcher} = require('../lib/dispatcher')
+var hx = require('../lib/hx')
 
 function UnsupportedMediaModal (state) {
   var err = state.modal.error

renderer/views/update-available-modal.js

@@ -1,21 +1,18 @@
 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')
+var hx = require('../lib/hx')
 
 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=${handleCancel}>Skip This Release</button>
+      <p class='float-right'>
+        <button class='button button-flat' onclick=${handleCancel}>Skip This Release</button>
+        <button class='button button-raised' onclick=${handleOK}>Show Download Page</button>
       </p>
     </div>
   `

renderer/webtorrent.js

@@ -28,20 +28,13 @@ global.WEBTORRENT_ANNOUNCE = defaultAnnounceList
 
 // 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({
-  tracker: {
-    // HACK: OS X: Disable WebRTC peers to fix 100% CPU issue caused by Chrome bug.
-    // Fixed in Chrome 51, so we can remove this hack once Electron updates Chrome.
-    // Issue: https://github.com/feross/webtorrent-desktop/issues/353
-    wrtc: process.platform !== 'darwin'
-  }
-})
+var client = new WebTorrent()
 
 // WebTorrent-to-HTTP streaming sever
-var server = window.server = null
+var server = null
 
 // Used for diffing, so we only send progress updates when necessary
-var prevProgress = window.prevProgress = null
+var prevProgress = null
 
 init()
 
@@ -70,6 +63,10 @@ function init () {
 
   ipc.send('ipcReadyWebTorrent')
 
+  window.addEventListener('error', (e) =>
+    ipc.send('wt-uncaught-error', {message: e.error.message, stack: e.error.stack}),
+    true)
+
   setInterval(updateTorrentProgress, 1000)
 }
 
@@ -180,7 +177,7 @@ function saveTorrentFile (torrentKey) {
     }
 
     // Otherwise, save the .torrent file, under the app config folder
-    fs.mkdir(config.CONFIG_TORRENT_PATH, function (_) {
+    fs.mkdir(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)
@@ -193,7 +190,7 @@ function saveTorrentFile (torrentKey) {
 // 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')
+  var torrentPath = path.join(config.TORRENT_PATH, infoHash + '.torrent')
   fs.exists(torrentPath, function (exists) {
     cb(torrentPath, exists)
   })
@@ -206,10 +203,10 @@ function generateTorrentPoster (torrentKey) {
   torrentPoster(torrent, function (err, buf, extension) {
     if (err) return console.log('error generating poster: %o', err)
     // save it for next time
-    fs.mkdirp(config.CONFIG_POSTER_PATH, function (err) {
+    fs.mkdirp(config.POSTER_PATH, function (err) {
       if (err) return console.log('error creating poster dir: %o', err)
       var posterFileName = torrent.infoHash + extension
-      var posterFilePath = path.join(config.CONFIG_POSTER_PATH, posterFileName)
+      var posterFilePath = path.join(config.POSTER_PATH, posterFileName)
       fs.writeFile(posterFilePath, buf, function (err) {
         if (err) return console.log('error saving poster: %o', err)
         // show the poster
@@ -277,7 +274,7 @@ function getTorrentProgress () {
 function startServer (infoHash, index) {
   var torrent = client.get(infoHash)
   if (torrent.ready) startServerFromReadyTorrent(torrent, index)
-  else torrent.on('ready', () => startServerFromReadyTorrent(torrent, index))
+  else torrent.once('ready', () => startServerFromReadyTorrent(torrent, index))
 }
 
 function startServerFromReadyTorrent (torrent, index, cb) {

static/linux/webtorrent-desktop.desktop

@@ -13,7 +13,7 @@ Exec=$EXEC_PATH %U
 TryExec=$TRY_EXEC_PATH
 StartupNotify=false
 Categories=Network;FileTransfer;P2P;
-MimeType=application/x-bittorrent;x-scheme-handler/magnet;
+MimeType=application/x-bittorrent;x-scheme-handler/magnet;x-scheme-handler/stream-magnet;
 
 Actions=CreateNewTorrent;OpenTorrentFile;OpenTorrentAddress;