gecko-dev/b2g/components/AlertsService.js

120 lines
4.2 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
const Ci = Components.interfaces;
const Cu = Components.utils;
const Cc = Components.classes;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "gSystemMessenger",
"@mozilla.org/system-message-internal;1",
"nsISystemMessagesInternal");
XPCOMUtils.defineLazyServiceGetter(this, "uuidGenerator",
"@mozilla.org/uuid-generator;1",
"nsIUUIDGenerator");
XPCOMUtils.defineLazyGetter(this, "cpmm", function() {
return Cc["@mozilla.org/childprocessmessagemanager;1"]
.getService(Ci.nsIMessageSender);
});
function debug(str) {
dump("=*= AlertsService.js : " + str + "\n");
}
// -----------------------------------------------------------------------
// Alerts Service
// -----------------------------------------------------------------------
function AlertsService() {
cpmm.addMessageListener("app-notification-return", this);
}
AlertsService.prototype = {
classID: Components.ID("{fe33c107-82a4-41d6-8c64-5353267e04c9}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIAlertsService,
Ci.nsIAppNotificationService]),
// nsIAlertsService
showAlertNotification: function showAlertNotification(aImageUrl,
aTitle,
aText,
aTextClickable,
aCookie,
aAlertListener,
aName) {
let browser = Services.wm.getMostRecentWindow("navigator:browser");
browser.AlertsHelper.showAlertNotification(aImageUrl, aTitle, aText,
aTextClickable, aCookie,
aAlertListener, aName);
},
// nsIAppNotificationService
showAppNotification: function showAppNotification(aImageURL,
aTitle,
aText,
aTextClickable,
aManifestURL,
aAlertListener) {
let uid = "app-notif-" + uuidGenerator.generateUUID();
this._listeners[uid] = {
observer: aAlertListener,
title: aTitle,
text: aText,
manifestURL: aManifestURL,
imageURL: aImageURL
};
cpmm.sendAsyncMessage("app-notification-send", {
imageURL: aImageURL,
title: aTitle,
text: aText,
textClickable: aTextClickable,
manifestURL: aManifestURL,
uid: uid
});
},
// AlertsService.js custom implementation
_listeners: [],
receiveMessage: function receiveMessage(aMessage) {
let data = aMessage.data;
let listener = this._listeners[data.uid];
if (aMessage.name !== "app-notification-return" || !listener) {
return;
}
let topic = data.topic;
try {
listener.observer.observe(null, topic, null);
} catch (e) {
// It seems like there is no callbacks anymore, forward the click on
// notification via a system message containing the title/text/icon of
// the notification so the app get a change to react.
if (data.target) {
gSystemMessenger.sendMessage("notification", {
title: listener.title,
body: listener.text,
imageURL: listener.imageURL
},
Services.io.newURI(data.target, null, null),
Services.io.newURI(listener.manifestURL, null, null));
}
}
// we're done with this notification
if (topic === "alertfinished") {
delete this._listeners[data.uid];
}
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AlertsService]);