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/* 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';
module.metadata = {
'stability': 'deprecated'
};
const { Cc, Ci } = require('chrome');
const { EventEmitter } = require('../deprecated/events');
const { Trait } = require('../deprecated/traits');
const { when } = require('../system/unload');
const { getInnerId, getOuterId, windows, isDocumentLoaded, isBrowser,
getMostRecentBrowserWindow } = require('../window/utils');
const errors = require('../deprecated/errors');
const { deprecateFunction } = require('../util/deprecate');
const windowWatcher = Cc['@mozilla.org/embedcomp/window-watcher;1'].
getService(Ci.nsIWindowWatcher);
const appShellService = Cc['@mozilla.org/appshell/appShellService;1'].
getService(Ci.nsIAppShellService);
/**
* An iterator for XUL windows currently in the application.
*
* @return A generator that yields XUL windows exposing the
* nsIDOMWindow interface.
*/
function windowIterator() {
// Bug 752631: We only pass already loaded window in order to avoid
// breaking XUL windows DOM. DOM is broken when some JS code try
// to access DOM during "uninitialized" state of the related document.
let list = windows().filter(isDocumentLoaded);
for (let i = 0, l = list.length; i < l; i++) {
yield list[i];
}
};
exports.windowIterator = windowIterator;
/**
* An iterator for browser windows currently open in the application.
* @returns {Function}
* A generator that yields browser windows exposing the `nsIDOMWindow`
* interface.
*/
function browserWindowIterator() {
for each (let window in windowIterator()) {
if (isBrowser(window))
yield window;
}
}
exports.browserWindowIterator = browserWindowIterator;
function WindowTracker(delegate) {
if (!(this instanceof WindowTracker)) {
return new WindowTracker(delegate);
}
this._delegate = delegate;
this._loadingWindows = [];
for each (let window in windows())
this._regWindow(window);
windowWatcher.registerNotification(this);
require('../system/unload').ensure(this);
return this;
};
WindowTracker.prototype = {
_regLoadingWindow: function _regLoadingWindow(window) {
this._loadingWindows.push(window);
window.addEventListener('load', this, true);
},
_unregLoadingWindow: function _unregLoadingWindow(window) {
var index = this._loadingWindows.indexOf(window);
if (index != -1) {
this._loadingWindows.splice(index, 1);
window.removeEventListener('load', this, true);
}
},
_regWindow: function _regWindow(window) {
if (window.document.readyState == 'complete') {
this._unregLoadingWindow(window);
this._delegate.onTrack(window);
} else
this._regLoadingWindow(window);
},
_unregWindow: function _unregWindow(window) {
if (window.document.readyState == 'complete') {
if (this._delegate.onUntrack)
this._delegate.onUntrack(window);
} else {
this._unregLoadingWindow(window);
}
},
unload: function unload() {
windowWatcher.unregisterNotification(this);
for each (let window in windows())
this._unregWindow(window);
},
handleEvent: errors.catchAndLog(function handleEvent(event) {
if (event.type == 'load' && event.target) {
var window = event.target.defaultView;
if (window)
this._regWindow(window);
}
}),
observe: errors.catchAndLog(function observe(subject, topic, data) {
var window = subject.QueryInterface(Ci.nsIDOMWindow);
if (topic == 'domwindowopened')
this._regWindow(window);
else
this._unregWindow(window);
})
};
exports.WindowTracker = WindowTracker;
const WindowTrackerTrait = Trait.compose({
_onTrack: Trait.required,
_onUntrack: Trait.required,
constructor: function WindowTrackerTrait() {
WindowTracker({
onTrack: this._onTrack.bind(this),
onUntrack: this._onUntrack.bind(this)
});
}
});
exports.WindowTrackerTrait = WindowTrackerTrait;
var gDocsToClose = [];
function onDocUnload(event) {
var index = gDocsToClose.indexOf(event.target);
if (index == -1)
throw new Error('internal error: unloading document not found');
var document = gDocsToClose.splice(index, 1)[0];
// Just in case, let's remove the event listener too.
document.defaultView.removeEventListener('unload', onDocUnload, false);
}
onDocUnload = require('./errors').catchAndLog(onDocUnload);
exports.closeOnUnload = function closeOnUnload(window) {
window.addEventListener('unload', onDocUnload, false);
gDocsToClose.push(window.document);
};
Object.defineProperties(exports, {
activeWindow: {
enumerable: true,
get: function() {
return Cc['@mozilla.org/appshell/window-mediator;1']
.getService(Ci.nsIWindowMediator)
.getMostRecentWindow(null);
},
set: function(window) {
try { window.focus(); } catch (e) { }
}
},
activeBrowserWindow: {
enumerable: true,
get: getMostRecentBrowserWindow
}
});
/**
* Returns the ID of the window's current inner window.
*/
exports.getInnerId = deprecateFunction(getInnerId,
'require("window-utils").getInnerId is deprecated, ' +
'please use require("window/utils").getInnerId instead'
);
exports.getOuterId = deprecateFunction(getOuterId,
'require("window-utils").getOuterId is deprecated, ' +
'please use require("window/utils").getOuterId instead'
);
exports.isBrowser = deprecateFunction(isBrowser,
'require("window-utils").isBrowser is deprecated, ' +
'please use require("window/utils").isBrowser instead'
);
exports.hiddenWindow = appShellService.hiddenDOMWindow;
when(
function() {
gDocsToClose.slice().forEach(
function(doc) { doc.defaultView.close(); });
});
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