зеркало из https://github.com/mozilla/pjs.git
126 строки
4.1 KiB
JavaScript
126 строки
4.1 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Mobile Browser.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Fabrice Desré <fabrice@mozilla.com>
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* Mark Finkle <mfinkle@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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const Cu = Components.utils;
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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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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const DB_VERSION = 1;
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function WebappsSupport() {
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this.init();
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}
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WebappsSupport.prototype = {
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db: null,
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init: function() {
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let file = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties).get("ProfD", Ci.nsIFile);
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file.append("webapps.sqlite");
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this.db = Services.storage.openDatabase(file);
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let version = this.db.schemaVersion;
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if (version == 0) {
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this.db.executeSimpleSQL("CREATE TABLE webapps (title TEXT, uri TEXT PRIMARY KEY, icon TEXT)");
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this.db.schemaVersion = DB_VERSION;
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}
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XPCOMUtils.defineLazyGetter(this, "_installQuery", function() {
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return this.db.createAsyncStatement("INSERT INTO webapps (title, uri, icon) VALUES(:title, :uri, :icon)");
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});
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XPCOMUtils.defineLazyGetter(this, "_findQuery", function() {
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return this.db.createStatement("SELECT uri FROM webapps where uri = :uri");
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});
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Services.obs.addObserver(this, "quit-application-granted", false);
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},
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// entry point
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installApplication: function(aTitle, aURI, aIconURI, aIconData) {
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let stmt = this._installQuery;
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stmt.params.title = aTitle;
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stmt.params.uri = aURI;
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stmt.params.icon = aIconData;
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stmt.executeAsync();
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},
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isApplicationInstalled: function(aURI) {
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let stmt = this._findQuery;
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let found = false;
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try {
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stmt.params.uri = aURI;
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found = stmt.executeStep();
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} finally {
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stmt.reset();
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}
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return found;
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},
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// nsIObserver
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observe: function(aSubject, aTopic, aData) {
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Services.obs.removeObserver(this, "quit-application-granted");
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// Finalize the statements that we have used
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let stmts = [
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"_installQuery",
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"_findQuery"
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];
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for (let i = 0; i < stmts.length; i++) {
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// We do not want to create any query we haven't already created, so
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// see if it is a getter first.
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if (Object.getOwnPropertyDescriptor(this, stmts[i]).value !== undefined) {
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this[stmts[i]].finalize();
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}
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}
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this.db.asyncClose();
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},
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// QI
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebappsSupport]),
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// XPCOMUtils factory
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classID: Components.ID("{cb1107c1-1e15-4f11-99c8-27b9ec221a2a}")
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};
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const NSGetFactory = XPCOMUtils.generateNSGetFactory([WebappsSupport]);
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