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