1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Special unload event. We don't use the DOM unload because that slows down
6 // tab shutdown. On the other hand, onUnload might not always fire, since
7 // Chrome will terminate renderers on shutdown (SuddenTermination).
9 // Implement a primitive subset of the Event interface as needed, since if this
10 // was to use the real event object there would be a circular dependency.
13 exports.addListener = function(listener) {
14 $Array.push(listeners, listener);
17 exports.removeListener = function(listener) {
18 for (var i = 0; i < listeners.length; ++i) {
19 if (listeners[i] == listener) {
20 $Array.splice(listeners, i, 1);
26 exports.wasDispatched = false;
28 // dispatch() is called from C++.
29 exports.dispatch = function() {
30 exports.wasDispatched = true;
31 for (var i = 0; i < listeners.length; ++i)