From f6ab6622aab00fe7c2f4c3dc41f786ebbe0f0d73 Mon Sep 17 00:00:00 2001 From: Rogan Creswick Date: Fri, 30 Mar 2012 17:07:02 -0700 Subject: initial revision --- .../addon-sdk-1.4/packages/api-utils/lib/xpcom.js | 152 +++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 tools/addon-sdk-1.4/packages/api-utils/lib/xpcom.js (limited to 'tools/addon-sdk-1.4/packages/api-utils/lib/xpcom.js') diff --git a/tools/addon-sdk-1.4/packages/api-utils/lib/xpcom.js b/tools/addon-sdk-1.4/packages/api-utils/lib/xpcom.js new file mode 100644 index 0000000..10f1d6b --- /dev/null +++ b/tools/addon-sdk-1.4/packages/api-utils/lib/xpcom.js @@ -0,0 +1,152 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Jetpack. + * + * The Initial Developer of the Original Code is Mozilla. + * Portions created by the Initial Developer are Copyright (C) 2007 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Atul Varma + * Drew Willcoxon + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +"use strict"; + +const {Cc,Ci,Cm,Cr,Cu} = require("chrome"); + +var jsm = {}; +Cu.import("resource://gre/modules/XPCOMUtils.jsm", jsm); +var utils = exports.utils = jsm.XPCOMUtils; + +Cm.QueryInterface(Ci.nsIComponentRegistrar); + +var factories = []; + +function Factory(options) { + memory.track(this); + + this.wrappedJSObject = this; + this.create = options.create; + this.uuid = options.uuid; + this.name = options.name; + this.contractID = options.contractID; + + Cm.registerFactory(this.uuid, + this.name, + this.contractID, + this); + + var self = this; + + factories.push(this); +} + +Factory.prototype = { + createInstance: function(outer, iid) { + try { + if (outer) + throw Cr.NS_ERROR_NO_AGGREGATION; + return (new this.create()).QueryInterface(iid); + } catch (e) { + console.exception(e); + if (e instanceof Ci.nsIException) + throw e; + else + throw Cr.NS_ERROR_FAILURE; + } + }, + unregister: function() { + var index = factories.indexOf(this); + if (index == -1) + throw new Error("factory already unregistered"); + + var self = this; + + factories.splice(index, 1); + Cm.unregisterFactory(this.uuid, this); + }, + QueryInterface: utils.generateQI([Ci.nsIFactory]) +}; + +var makeUuid = exports.makeUuid = function makeUuid() { + var uuidGenerator = Cc["@mozilla.org/uuid-generator;1"] + .getService(Ci.nsIUUIDGenerator); + var uuid = uuidGenerator.generateUUID(); + return uuid; +}; + +var autoRegister = exports.autoRegister = function autoRegister(path) { + // TODO: This assumes that the url points to a directory + // that contains subdirectories corresponding to OS/ABI and then + // further subdirectories corresponding to Gecko platform version. + // we should probably either behave intelligently here or allow + // the caller to pass-in more options if e.g. there aren't + // Gecko-specific binaries for a component (which will be the case + // if only frozen interfaces are used). + + var appInfo = Cc["@mozilla.org/xre/app-info;1"] + .getService(Ci.nsIXULAppInfo); + var runtime = Cc["@mozilla.org/xre/app-info;1"] + .getService(Ci.nsIXULRuntime); + + var osDirName = runtime.OS + "_" + runtime.XPCOMABI; + var platformVersion = appInfo.platformVersion.substring(0, 5); + + var file = Cc['@mozilla.org/file/local;1'] + .createInstance(Ci.nsILocalFile); + file.initWithPath(path); + file.append(osDirName); + file.append(platformVersion); + + if (!(file.exists() && file.isDirectory())) + throw new Error("component not available for OS/ABI " + + osDirName + " and platform " + platformVersion); + + Cm.QueryInterface(Ci.nsIComponentRegistrar); + Cm.autoRegister(file); +}; + +var register = exports.register = function register(options) { + options = {__proto__: options}; + if (!options.uuid) + options.uuid = makeUuid(); + return new Factory(options); +}; + +var getClass = exports.getClass = function getClass(contractID, iid) { + if (!iid) + iid = Ci.nsISupports; + return Cm.getClassObjectByContractID(contractID, iid); +}; + +require("./unload").when( + function() { + var copy = factories.slice(); + copy.reverse(); + copy.forEach(function(factory) { factory.unregister(); }); + }); -- cgit v1.2.3