зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.6 KiB
JavaScript
47 строки
1.6 KiB
JavaScript
/* 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";
|
|
|
|
this.EXPORTED_SYMBOLS = ["gDevToolsExtensions"];
|
|
|
|
Components.utils.import("resource://gre/modules/Services.jsm");
|
|
|
|
let globalsCache = {};
|
|
|
|
this.gDevToolsExtensions = {
|
|
addContentGlobal: function(options) {
|
|
if (!options || !options.global || !options['inner-window-id']) {
|
|
throw Error('Invalid arguments');
|
|
}
|
|
let cache = getGlobalCache(options['inner-window-id']);
|
|
cache.push(options.global);
|
|
return undefined;
|
|
},
|
|
getContentGlobals: function(options) {
|
|
if (!options || !options['inner-window-id']) {
|
|
throw Error('Invalid arguments');
|
|
}
|
|
return Array.slice(globalsCache[options['inner-window-id']] || []);
|
|
},
|
|
removeContentGlobal: function(options) {
|
|
if (!options || !options.global || !options['inner-window-id']) {
|
|
throw Error('Invalid arguments');
|
|
}
|
|
let cache = getGlobalCache(options['inner-window-id']);
|
|
let index = cache.indexOf(options.global);
|
|
cache.splice(index, 1);
|
|
return undefined;
|
|
}
|
|
};
|
|
|
|
function getGlobalCache(aInnerWindowID) {
|
|
return globalsCache[aInnerWindowID] = globalsCache[aInnerWindowID] || [];
|
|
}
|
|
|
|
// when the window is destroyed, eliminate the associated globals cache
|
|
Services.obs.addObserver(function observer(subject, topic, data) {
|
|
let id = subject.QueryInterface(Components.interfaces.nsISupportsPRUint64).data;
|
|
delete globalsCache[id];
|
|
}, 'inner-window-destroyed', false);
|