michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: const Cu = Components.utils;
michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: 
michael@0: // This module exposes a subset of the functionnalities of the parent DOM
michael@0: // Registry to content processes, to be be used from the AppsService component.
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["DOMApplicationRegistry"];
michael@0: 
michael@0: Cu.import("resource://gre/modules/AppsUtils.jsm");
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: 
michael@0: function debug(s) {
michael@0:   //dump("-*- AppsServiceChild.jsm: " + s + "\n");
michael@0: }
michael@0: 
michael@0: this.DOMApplicationRegistry = {
michael@0:   init: function init() {
michael@0:     debug("init");
michael@0:     this.cpmm = Cc["@mozilla.org/childprocessmessagemanager;1"]
michael@0:                   .getService(Ci.nsISyncMessageSender);
michael@0: 
michael@0:     ["Webapps:AddApp", "Webapps:RemoveApp"].forEach((function(aMsgName) {
michael@0:       this.cpmm.addMessageListener(aMsgName, this);
michael@0:     }).bind(this));
michael@0: 
michael@0:     // We need to prime the cache with the list of apps.
michael@0:     // XXX shoud we do this async and block callers if it's not yet there?
michael@0:     this.webapps = this.cpmm.sendSyncMessage("Webapps:GetList", { })[0];
michael@0: 
michael@0:     // We need a fast mapping from localId -> app, so we add an index.
michael@0:     this.localIdIndex = { };
michael@0:     for (let id in this.webapps) {
michael@0:       let app = this.webapps[id];
michael@0:       this.localIdIndex[app.localId] = app;
michael@0:     }
michael@0: 
michael@0:     Services.obs.addObserver(this, "xpcom-shutdown", false);
michael@0:   },
michael@0: 
michael@0:   observe: function(aSubject, aTopic, aData) {
michael@0:     // cpmm.addMessageListener causes the DOMApplicationRegistry object to live
michael@0:     // forever if we don't clean up properly.
michael@0:     this.webapps = null;
michael@0:     ["Webapps:AddApp", "Webapps:RemoveApp"].forEach((function(aMsgName) {
michael@0:       this.cpmm.removeMessageListener(aMsgName, this);
michael@0:     }).bind(this));
michael@0:   },
michael@0: 
michael@0:   receiveMessage: function receiveMessage(aMessage) {
michael@0:     debug("Received " + aMessage.name + " message.");
michael@0:     let msg = aMessage.json;
michael@0:     switch (aMessage.name) {
michael@0:       case "Webapps:AddApp":
michael@0:         this.webapps[msg.id] = msg.app;
michael@0:         this.localIdIndex[msg.app.localId] = msg.app;
michael@0:         break;
michael@0:       case "Webapps:RemoveApp":
michael@0:         delete this.localIdIndex[this.webapps[msg.id].localId];
michael@0:         delete this.webapps[msg.id];
michael@0:         break;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   getAppByManifestURL: function getAppByManifestURL(aManifestURL) {
michael@0:     debug("getAppByManifestURL " + aManifestURL);
michael@0:     return AppsUtils.getAppByManifestURL(this.webapps, aManifestURL);
michael@0:   },
michael@0: 
michael@0:   getAppLocalIdByManifestURL: function getAppLocalIdByManifestURL(aManifestURL) {
michael@0:     debug("getAppLocalIdByManifestURL " + aManifestURL);
michael@0:     return AppsUtils.getAppLocalIdByManifestURL(this.webapps, aManifestURL);
michael@0:   },
michael@0: 
michael@0:   getCSPByLocalId: function(aLocalId) {
michael@0:     debug("getCSPByLocalId:" + aLocalId);
michael@0:     return AppsUtils.getCSPByLocalId(this.webapps, aLocalId);
michael@0:   },
michael@0: 
michael@0:   getAppLocalIdByStoreId: function(aStoreId) {
michael@0:     debug("getAppLocalIdByStoreId:" + aStoreId);
michael@0:     return AppsUtils.getAppLocalIdByStoreId(this.webapps, aStoreId);
michael@0:   },
michael@0: 
michael@0:   getAppByLocalId: function getAppByLocalId(aLocalId) {
michael@0:     debug("getAppByLocalId " + aLocalId);
michael@0:     let app = this.localIdIndex[aLocalId];
michael@0:     if (!app) {
michael@0:       debug("Ouch, No app!");
michael@0:       return null;
michael@0:     }
michael@0: 
michael@0:     return new mozIApplication(app);
michael@0:   },
michael@0: 
michael@0:   getManifestURLByLocalId: function getManifestURLByLocalId(aLocalId) {
michael@0:     debug("getManifestURLByLocalId " + aLocalId);
michael@0:     return AppsUtils.getManifestURLByLocalId(this.webapps, aLocalId);
michael@0:   },
michael@0: 
michael@0:   getCoreAppsBasePath: function getCoreAppsBasePath() {
michael@0:     debug("getCoreAppsBasePath() not yet supported on child!");
michael@0:     return null;
michael@0:   },
michael@0: 
michael@0:   getWebAppsBasePath: function getWebAppsBasePath() {
michael@0:     debug("getWebAppsBasePath() not yet supported on child!");
michael@0:     return null;
michael@0:   },
michael@0: 
michael@0:   getAppInfo: function getAppInfo(aAppId) {
michael@0:     return AppsUtils.getAppInfo(this.webapps, aAppId);
michael@0:   }
michael@0: }
michael@0: 
michael@0: DOMApplicationRegistry.init();