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54 lines
1.8 KiB
JavaScript
54 lines
1.8 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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this.EXPORTED_SYMBOLS = ["WebappRT"];
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/AppsUtils.jsm");
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XPCOMUtils.defineLazyGetter(this, "FileUtils", function() {
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Cu.import("resource://gre/modules/FileUtils.jsm");
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return FileUtils;
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});
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this.WebappRT = {
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_config: null,
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get config() {
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if (this._config)
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return this._config;
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let webappFile = FileUtils.getFile("AppRegD", ["webapp.json"]);
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let inputStream = Cc["@mozilla.org/network/file-input-stream;1"].
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createInstance(Ci.nsIFileInputStream);
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inputStream.init(webappFile, -1, 0, 0);
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let json = Cc["@mozilla.org/dom/json;1"].createInstance(Ci.nsIJSON);
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let config = json.decodeFromStream(inputStream, webappFile.fileSize);
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return this._config = config;
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},
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// This exists to support test mode, which installs webapps after startup.
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// Ideally we wouldn't have to have a setter, as tests can just delete
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// the getter and then set the property. But the object to which they set it
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// will have a reference to its global object, so our reference to it
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// will leak that object (per bug 780674). The setter enables us to clone
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// the new value so we don't actually retain a reference to it.
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set config(newVal) {
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this._config = JSON.parse(JSON.stringify(newVal));
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},
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get launchURI() {
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let manifest = new ManifestHelper(this.config.app.manifest,
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this.config.app.origin);
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return manifest.fullLaunchPath();
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}
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};
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