1 files changed, 135 insertions, 0 deletions
diff --git a/toolkit/jetpack/sdk/tabs/tabs-firefox.js b/toolkit/jetpack/sdk/tabs/tabs-firefox.js
new file mode 100644
index 000000000..1eefecb4c
--- /dev/null
+++ b/toolkit/jetpack/sdk/tabs/tabs-firefox.js
@@ -0,0 +1,135 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const { Class } = require('../core/heritage');
+const { Tab, tabEvents } = require('./tab');
+const { EventTarget } = require('../event/target');
+const { emit, setListeners } = require('../event/core');
+const { pipe } = require('../event/utils');
+const { observer: windowObserver } = require('../windows/observer');
+const { List, addListItem, removeListItem } = require('../util/list');
+const { modelFor } = require('../model/core');
+const { viewFor } = require('../view/core');
+const { getTabs, getSelectedTab } = require('./utils');
+const { getMostRecentBrowserWindow, isBrowser } = require('../window/utils');
+const { Options } = require('./common');
+const { isPrivate } = require('../private-browsing');
+const { ignoreWindow, isWindowPBSupported } = require('../private-browsing/utils')
+const { isPrivateBrowsingSupported } = require('sdk/self');
+
+const supportPrivateTabs = isPrivateBrowsingSupported && isWindowPBSupported;
+
+const Tabs = Class({
+  implements: [EventTarget],
+  extends: List,
+  initialize: function() {
+    List.prototype.initialize.call(this);
+
+    // We must do the list manipulation here where the object is extensible
+    this.on("open", tab => {
+      addListItem(this, tab);
+    });
+
+    this.on("close", tab => {
+      removeListItem(this, tab);
+    });
+  },
+
+  get activeTab() {
+    let activeDomWin = getMostRecentBrowserWindow();
+    if (!activeDomWin)
+      return null;
+    return modelFor(getSelectedTab(activeDomWin));
+  },
+
+  open: function(options) {
+    options = Options(options);
+
+    // TODO: Remove the dependency on the windows module: bug 792670
+    let windows = require('../windows').browserWindows;
+    let activeWindow = windows.activeWindow;
+
+    let privateState = supportPrivateTabs && options.isPrivate;
+    // When no isPrivate option was passed use the private state of the active
+    // window
+    if (activeWindow && privateState === undefined)
+      privateState = isPrivate(activeWindow);
+
+    function getWindow(privateState) {
+      for (let window of windows) {
+        if (privateState === isPrivate(window)) {
+          return window;
+        }
+      }
+      return null;
+    }
+
+    function openNewWindowWithTab() {
+      windows.open({
+        url: options.url,
+        isPrivate: privateState,
+        onOpen: function(newWindow) {
+          let tab = newWindow.tabs[0];
+          setListeners(tab, options);
+
+          if (options.isPinned)
+            tab.pin();
+
+          // We don't emit the open event for the first tab in a new window so
+          // do it now the listeners are attached
+          emit(tab, "open", tab);
+        }
+      });
+    }
+
+    if (options.inNewWindow)
+      return openNewWindowWithTab();
+
+    // if the active window is in the state that we need then use it
+    if (activeWindow && (privateState === isPrivate(activeWindow)))
+      return activeWindow.tabs.open(options);
+
+    // find a window in the state that we need
+    let window = getWindow(privateState);
+    if (window)
+      return window.tabs.open(options);
+
+    return openNewWindowWithTab();
+  }
+});
+
+const allTabs = new Tabs();
+// Export a new object with allTabs as the prototype, otherwise allTabs becomes
+// frozen and addListItem and removeListItem don't work correctly.
+module.exports = Object.create(allTabs);
+pipe(tabEvents, module.exports);
+
+function addWindowTab(window, tabElement) {
+  let tab = new Tab(tabElement);
+  if (window)
+    addListItem(window.tabs, tab);
+  addListItem(allTabs, tab);
+  emit(allTabs, "open", tab);
+}
+
+// Find tabs in already open windows
+for (let tabElement of getTabs())
+  addWindowTab(null, tabElement);
+
+// Detect tabs in new windows
+windowObserver.on('open', domWindow => {
+  if (!isBrowser(domWindow) || ignoreWindow(domWindow))
+    return;
+
+  let window = null;
+  try {
+    modelFor(domWindow);
+  }
+  catch (e) { }
+
+  for (let tabElement of getTabs(domWindow)) {
+    addWindowTab(window, tabElement);
+  }
+});