1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/activities/src/ActivityWrapper.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,91 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +"use strict";
1.9 +
1.10 +const Cc = Components.classes;
1.11 +const Ci = Components.interfaces;
1.12 +const Cu = Components.utils;
1.13 +
1.14 +Cu.import("resource://gre/modules/XPCOMUtils.jsm");
1.15 +Cu.import("resource://gre/modules/Services.jsm");
1.16 +
1.17 +XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
1.18 + "@mozilla.org/childprocessmessagemanager;1",
1.19 + "nsISyncMessageSender");
1.20 +
1.21 +function debug(aMsg) {
1.22 + //dump("-- ActivityWrapper.js " + Date.now() + " : " + aMsg + "\n");
1.23 +}
1.24 +
1.25 +/**
1.26 + * nsISystemMessagesWrapper implementation. Will return a
1.27 + * nsIDOMMozActivityRequestHandler
1.28 + */
1.29 +function ActivityWrapper() {
1.30 + debug("ActivityWrapper");
1.31 +}
1.32 +
1.33 +ActivityWrapper.prototype = {
1.34 + wrapMessage: function wrapMessage(aMessage, aWindow) {
1.35 + debug("Wrapping " + JSON.stringify(aMessage));
1.36 +
1.37 + // This message is useful to communicate that the activity message has been
1.38 + // properly received by the app. If the app will be killed, the
1.39 + // ActivitiesService will be able to fire an error and complete the
1.40 + // Activity workflow.
1.41 + cpmm.sendAsyncMessage("Activity:Ready", { id: aMessage.id });
1.42 +
1.43 + let handler = new aWindow.ActivityRequestHandler(aMessage.id, aMessage.payload);
1.44 +
1.45 + // When the activity window is closed, fire an error to notify the activity
1.46 + // caller of the situation.
1.47 + // We don't need to check whether the activity itself already sent
1.48 + // back something since ActivitiesService.jsm takes care of that.
1.49 + let util = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
1.50 + .getInterface(Ci.nsIDOMWindowUtils);
1.51 + let innerWindowID = util.currentInnerWindowID;
1.52 +
1.53 + let observer = {
1.54 + observe: function(aSubject, aTopic, aData) {
1.55 +
1.56 + switch (aTopic) {
1.57 + case 'inner-window-destroyed':
1.58 + let wId = aSubject.QueryInterface(Ci.nsISupportsPRUint64).data;
1.59 + if (wId == innerWindowID) {
1.60 + debug("Closing activity window " + innerWindowID);
1.61 + Services.obs.removeObserver(observer, "inner-window-destroyed");
1.62 + cpmm.sendAsyncMessage("Activity:PostError",
1.63 + { id: aMessage.id,
1.64 + error: "ActivityCanceled"
1.65 + });
1.66 + }
1.67 + break;
1.68 + case 'activity-error':
1.69 + case 'activity-success':
1.70 + if (aData !== aMessage.id) {
1.71 + return;
1.72 + }
1.73 + Services.obs.removeObserver(observer, "activity-error");
1.74 + Services.obs.removeObserver(observer, "activity-success");
1.75 + let docshell = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
1.76 + .getInterface(Ci.nsIWebNavigation);
1.77 + Services.obs.notifyObservers(docshell, "activity-done", aTopic);
1.78 + break;
1.79 + }
1.80 + }
1.81 + }
1.82 +
1.83 + Services.obs.addObserver(observer, "activity-error", false);
1.84 + Services.obs.addObserver(observer, "activity-success", false);
1.85 + Services.obs.addObserver(observer, "inner-window-destroyed", false);
1.86 + return handler;
1.87 + },
1.88 +
1.89 + classID: Components.ID("{5430d6f9-32d6-4924-ba39-6b6d1b093cd6}"),
1.90 + QueryInterface: XPCOMUtils.generateQI([Ci.nsISystemMessagesWrapper])
1.91 +}
1.92 +
1.93 +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ActivityWrapper]);
1.94 +
