Dialogs on do not show a title on OS X, so the window title is used instead.

main/dialog.js

@@ -5,6 +5,7 @@ module.exports = {
   openTorrentAddress
 }
 
+var config = require('../config')
 var electron = require('electron')
 var windows = require('./windows')
 
@@ -12,11 +13,14 @@ var windows = require('./windows')
  * Show open dialog to create a single-file torrent.
  */
 function openSeedFile () {
+  if (!windows.main.win) return
   var opts = {
-    title: 'Select a file for the torrent file.',
+    title: 'Select a file for the torrent.',
     properties: [ 'openFile' ]
   }
-  electron.dialog.showOpenDialog(opts, function (selectedPaths) {
+  setTitle(opts.title)
+  electron.dialog.showOpenDialog(windows.main.win, opts, function (selectedPaths) {
+    resetTitle()
     if (!Array.isArray(selectedPaths)) return
     windows.main.send('dispatch', 'showCreateTorrent', selectedPaths)
   })
@@ -24,15 +28,23 @@ function openSeedFile () {
 
 /*
  * 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.
- * This function shows a directory dialog.
+ * 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 () {
-  var opts = {
-    title: 'Select a file or folder for the torrent file.',
-    properties: [ 'openFile', 'openDirectory' ]
-  }
-  electron.dialog.showOpenDialog(opts, function (selectedPaths) {
+  if (!windows.main.win) return
+  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.send('dispatch', 'showCreateTorrent', selectedPaths)
   })
@@ -42,12 +54,15 @@ function openSeedDirectory () {
  * Show open dialog to open a .torrent file.
  */
 function openTorrentFile () {
+  if (!windows.main.win) return
   var opts = {
     title: 'Select a .torrent file to open.',
     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.send('dispatch', 'addTorrent', selectedPath)
@@ -61,3 +76,16 @@ function openTorrentFile () {
 function openTorrentAddress () {
   windows.main.send('showOpenTorrentAddress')
 }
+
+/**
+ * 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.send('dispatch', 'setTitle', title)
+  }
+}
+
+function resetTitle () {
+  setTitle(config.APP_WINDOW_TITLE)
+}

renderer/main.js

@@ -377,6 +377,9 @@ function dispatch (action, ...args) {
   if (action === 'saveState') {
     saveState()
   }
+  if (action === 'setTitle') {
+    state.window.title = args[0] /* title */
+  }
 
   // Update the virtual-dom, unless it's just a mouse move event
   if (action !== 'mediaMouseMoved' || showOrHidePlayerControls()) {