mirror of
https://github.com/gorhill/uBlock.git
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70 lines
2.2 KiB
JavaScript
70 lines
2.2 KiB
JavaScript
/*******************************************************************************
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µBlock - a browser extension to block requests.
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Copyright (C) 2014 The µBlock authors
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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/* globals addMessageListener, removeMessageListener */
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/******************************************************************************/
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// https://bugzil.la/673569
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(function(frameScriptContext) {
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'use strict';
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/******************************************************************************/
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let appName = Components.stack.filename.match(/:\/\/([^\/]+)/)[1];
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let listeners = {};
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Components.utils['import'](Components.stack.filename.replace('Script', 'Module'), {});
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/******************************************************************************/
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frameScriptContext[appName + '_addMessageListener'] = function(id, fn) {
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frameScriptContext[appName + '_removeMessageListener'](id);
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listeners[id] = function(msg) {
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fn(msg.data);
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};
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addMessageListener(id, listeners[id]);
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};
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frameScriptContext[appName + '_removeMessageListener'] = function(id) {
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if ( listeners[id] ) {
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removeMessageListener(id, listeners[id]);
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}
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delete listeners[id];
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};
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/******************************************************************************/
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addMessageListener(appName + ':broadcast', function(msg) {
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for ( let id in listeners ) {
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listeners[id](msg);
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}
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});
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/******************************************************************************/
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})(this);
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/******************************************************************************/
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