/usr/share/xul-ext/adblock-plus-element-hiding-helper/windowObserver.js is in xul-ext-adblock-plus-element-hiding-helper 1.2.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | /*
* This Source Code is subject to the terms of the Mozilla Public License
* version 2.0 (the "License"). You can obtain a copy of the License at
* http://mozilla.org/MPL/2.0/.
*/
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
exports.WindowObserver = WindowObserver;
/**
* This class will call listener's method applyToWindow() for all new chrome
* windows being opened. It will also call listener's method removeFromWindow()
* for all windows still open when the extension is shut down.
* @param {Object} listener
* @param {String} [when] when to execute applyToWindow(). "start" means immediately
* when the window opens, "ready" when its contents are available
* and "end" (default) means to wait until the "load" event.
* @constructor
*/
function WindowObserver(listener, when)
{
this._listener = listener;
this._when = when;
let e = Services.ww.getWindowEnumerator();
while (e.hasMoreElements())
{
let window = e.getNext().QueryInterface(Ci.nsIDOMWindow);
if (when == "start" || window.document.readyState == "complete")
this._listener.applyToWindow(window);
else
this.observe(window, "domwindowopened", null);
}
Services.ww.registerNotification(this);
this._shutdownHandler = function()
{
let e = Services.ww.getWindowEnumerator();
while (e.hasMoreElements())
this._listener.removeFromWindow(e.getNext().QueryInterface(Ci.nsIDOMWindow));
Services.ww.unregisterNotification(this);
}.bind(this);
onShutdown.add(this._shutdownHandler);
}
WindowObserver.prototype =
{
_listener: null,
_when: null,
_shutdownHandler: null,
shutdown: function()
{
if (!this._shutdownHandler)
return;
onShutdown.remove(this._shutdownHandler);
this._shutdownHandler();
this._shutdownHandler = null;
},
observe: function(subject, topic, data)
{
if (topic == "domwindowopened")
{
if (this._when == "start")
{
this._listener.applyToWindow(window);
return;
}
let window = subject.QueryInterface(Ci.nsIDOMWindow);
let event = (this._when == "ready" ? "DOMContentLoaded" : "load");
let listener = function()
{
window.removeEventListener(event, listener, false);
if (this._shutdownHandler)
this._listener.applyToWindow(window);
}.bind(this);
window.addEventListener(event, listener, false);
}
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference, Ci.nsIObserver])
};
|