Use GuestWindowManager to mange windows created by window.open

atom.gyp

@@ -30,6 +30,7 @@
       'atom/browser/api/lib/web-contents.coffee',
       'atom/browser/lib/chrome-extension.coffee',
       'atom/browser/lib/guest-view-manager.coffee',
+      'atom/browser/lib/guest-window-manager.coffee',
       'atom/browser/lib/init.coffee',
       'atom/browser/lib/objects-registry.coffee',
       'atom/browser/lib/rpc-server.coffee',

atom/browser/api/atom_api_web_contents.cc

@@ -441,6 +441,7 @@ mate::ObjectTemplateBuilder WebContents::GetObjectTemplateBuilder(
         .SetMethod("_send", &WebContents::SendIPCMessage)
         .SetMethod("setAutoSize", &WebContents::SetAutoSize)
         .SetMethod("setAllowTransparency", &WebContents::SetAllowTransparency)
+        .SetMethod("isGuest", &WebContents::is_guest)
         .Build());
 
   return mate::ObjectTemplateBuilder(

atom/browser/api/lib/web-contents.coffee

@@ -2,10 +2,6 @@ EventEmitter = require('events').EventEmitter
 binding = process.atomBinding 'web_contents'
 ipc = require 'ipc'
 
-# Routed window.open messages.
-ipc.on 'ATOM_SHELL_WEB_CONTENTS_WINDOW_OPEN', (event, args...) ->
-  event.sender.emit 'new-window', event, args...
-
 module.exports.wrap = (webContents) ->
   return null unless webContents.isAlive()
 

atom/browser/lib/guest-window-manager.coffee

@@ -0,0 +1,60 @@
+ipc = require 'ipc'
+v8Util = process.atomBinding 'v8_util'
+BrowserWindow = require 'browser-window'
+
+guestWindows = new WeakMap
+
+# Callback that registered to "closed" event of guest.
+guestUserCloseCallback = ->
+  embedderId = v8Util.getHiddenValue this, 'embedderId'
+  removeGuest embedderId, @id
+
+# Get all guests created in a window.
+getGuestsFromEmbedder = (embedderWindow) ->
+  unless guestWindows.has embedderWindow
+    guests = []
+    guestWindows.set embedderWindow, guests
+    # Close all guests when window is closed.
+    embedderWindow.on 'closed', ->
+      for guest in guests
+        # Avoid double removing window from guests.
+        guest.removeListener 'closed', guestUserCloseCallback
+        # Just close without emitting "beforeunload" event.
+        guest.destroy()
+  guestWindows.get embedderWindow
+
+# Remove a guest window.
+removeGuest = (embedderId, guestId) ->
+  guests = getGuestsFromEmbedder BrowserWindow.windows.get(embedderId)
+  for guest, i in guests
+    if guest.id == guestId
+      guests.splice i, 1
+      return guest
+
+# Create a new guest created by |embedder| with |options|.
+createGuest = (embedder, url, options) ->
+  embedderWindow = BrowserWindow.fromWebContents embedder
+  guests = getGuestsFromEmbedder embedderWindow
+
+  guest = new BrowserWindow(options)
+  guest.loadUrl url
+
+  # Remove self from guest list when user closes guest window.
+  v8Util.setHiddenValue guest, 'embedderId', embedderWindow.id
+  guest.on 'closed', guestUserCloseCallback
+
+  guests.push guest
+  [embedderWindow.id, guest.id]
+
+# Routed window.open messages.
+ipc.on 'ATOM_SHELL_GUEST_WINDOW_MANAGER_WINDOW_OPEN', (event, args...) ->
+  event.sender.emit 'new-window', event, args...
+  if event.sender.isGuest() or event.defaultPrevented
+    event.returnValue = null
+  else
+    [url, frameName, options] = args
+    event.returnValue = createGuest event.sender, url, options
+
+ipc.on 'ATOM_SHELL_GUEST_WINDOW_MANAGER_WINDOW_CLOSE', (event, args...) ->
+  guest = removeGuest args...
+  guest.destroy()

atom/browser/lib/init.coffee

@@ -58,10 +58,11 @@ process.once 'BIND_DONE', ->
     process.emit 'exit'
 
   # Load the RPC server.
-  require './rpc-server.js'
+  require './rpc-server'
 
   # Load the guest view manager.
-  require './guest-view-manager.js'
+  require './guest-view-manager'
+  require './guest-window-manager'
 
   # Now we try to load app's package.json.
   packageJson = null

atom/renderer/lib/override.coffee

@@ -2,6 +2,13 @@ process = global.process
 ipc = require 'ipc'
 remote = require 'remote'
 
+# Window object returned by "window.open".
+class FakeWindow
+  constructor: (@embedderId, @guestId) ->
+
+  close: ->
+    ipc.send 'ATOM_SHELL_GUEST_WINDOW_MANAGER_WINDOW_CLOSE', @embedderId, @guestId
+
 unless process.guestInstanceId?
   # Override default window.close.
   window.close = ->
@@ -25,7 +32,8 @@ window.open = (url, frameName='', features='') ->
   options.width ?= 800
   options.height ?= 600
 
-  ipc.send 'ATOM_SHELL_WEB_CONTENTS_WINDOW_OPEN', url, frameName, options
+  [embedderId, guestId] = ipc.sendSync 'ATOM_SHELL_GUEST_WINDOW_MANAGER_WINDOW_OPEN', url, frameName, options
+  new FakeWindow(embedderId, guestId)
 
 # Use the dialog API to implement alert().
 window.alert = (message, title='') ->

spec/chromium-spec.coffee

@@ -32,10 +32,10 @@ describe 'chromium feature', ->
       assert.notEqual navigator.language, ''
 
   describe 'window.open', ->
-    it 'returns a BrowserWindow object', ->
+    it 'returns a FakeWindow object', ->
       b = window.open 'about:blank', 'test', 'show=no'
-      assert.equal b.constructor.name, 'BrowserWindow'
+      assert.equal b.constructor.name, 'FakeWindow'
-      b.destroy()
+      b.close()
 
   describe 'creating a Uint8Array under browser side', ->
     it 'does not crash', ->