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83 lines
2.5 KiB
JavaScript
83 lines
2.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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XPCOMUtils.defineLazyModuleGetter(this, "ConsoleAPI",
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"resource://gre/modules/Console.jsm");
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/*
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* Collection of methods and features specific to using a GeckoView instance.
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* The code is isolated from browser.js for code size and performance reasons.
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*/
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var EmbedRT = {
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_scopes: {},
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observe: function(subject, topic, data) {
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switch(topic) {
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case "GeckoView:ImportScript":
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this.importScript(data);
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break;
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}
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},
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/*
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* Loads a script file into a sandbox and calls an optional load function
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*/
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importScript: function(scriptURL) {
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if (scriptURL in this._scopes) {
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return;
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}
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let principal = Cc["@mozilla.org/systemprincipal;1"].createInstance(Ci.nsIPrincipal);
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let sandbox = new Cu.Sandbox(principal,
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{
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sandboxName: scriptURL,
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wantGlobalProperties: ["indexedDB"]
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}
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);
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sandbox["console"] = new ConsoleAPI({ consoleID: "script/" + scriptURL });
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sandbox["GeckoView"] = {
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sendRequest: function(data) {
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if (!data) {
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throw new Error("Invalid parameter: 'data' can't be null.");
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}
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let message = { type: "GeckoView:Message", data: data };
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Messaging.sendRequest(message);
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},
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sendRequestForResult: function(data) {
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if (!data) {
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throw new Error("Invalid parameter: 'data' can't be null.");
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}
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let message = { type: "GeckoView:Message", data: data };
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return Messaging.sendRequestForResult(message);
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}
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};
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// As we don't want our caller to control the JS version used for the
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// script file, we run loadSubScript within the context of the
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// sandbox with the latest JS version set explicitly.
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sandbox.__SCRIPT_URI_SPEC__ = scriptURL;
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Cu.evalInSandbox("Components.classes['@mozilla.org/moz/jssubscript-loader;1'].createInstance(Components.interfaces.mozIJSSubScriptLoader).loadSubScript(__SCRIPT_URI_SPEC__);", sandbox, "ECMAv5");
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this._scopes[scriptURL] = sandbox;
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if ("load" in sandbox) {
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let params = {
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window: window,
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resourceURI: scriptURL,
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};
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try {
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sandbox["load"](params);
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} catch(e) {
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dump("Exception calling 'load' method in script: " + scriptURL + "\n" + e);
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}
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}
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}
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};
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