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/* 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.defineLazyServiceGetter(this, "notificationStorage",
"@mozilla.org/notificationStorage;1",
"nsINotificationStorage");
XPCOMUtils.defineLazyGetter(this, "cpmm", function() {
return Cc["@mozilla.org/childprocessmessagemanager;1"]
.getService(Ci.nsIMessageSender);
});
function debug(str) {
dump("=*= AlertsService.js : " + str + "\n");
}
// -----------------------------------------------------------------------
// Alerts Service
// -----------------------------------------------------------------------
const kNotificationSystemMessageName = "notification";
const kMessageAlertNotificationSend = "alert-notification-send";
const kMessageAlertNotificationClose = "alert-notification-close";
const kTopicAlertShow = "alertshow";
const kTopicAlertFinished = "alertfinished";
const kTopicAlertClickCallback = "alertclickcallback";
function AlertsService() {
Services.obs.addObserver(this, "xpcom-shutdown", false);
}
AlertsService.prototype = {
classID: Components.ID("{fe33c107-82a4-41d6-8c64-5353267e04c9}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIAlertsService,
Ci.nsIObserver]),
observe: function(aSubject, aTopic, aData) {
switch (aTopic) {
case "xpcom-shutdown":
Services.obs.removeObserver(this, "xpcom-shutdown");
break;
}
},
// nsIAlertsService
showAlert: function(aAlert, aAlertListener) {
if (!aAlert) {
return;
}
cpmm.sendAsyncMessage(kMessageAlertNotificationSend, {
imageURL: aAlert.imageURL,
title: aAlert.title,
text: aAlert.text,
clickable: aAlert.textClickable,
cookie: aAlert.cookie,
listener: aAlertListener,
id: aAlert.name,
dir: aAlert.dir,
lang: aAlert.lang,
dataStr: aAlert.data,
inPrivateBrowsing: aAlert.inPrivateBrowsing
});
},
showAlertNotification: function(aImageUrl, aTitle, aText, aTextClickable,
aCookie, aAlertListener, aName, aBidi,
aLang, aDataStr, aPrincipal,
aInPrivateBrowsing) {
let alert = Cc["@mozilla.org/alert-notification;1"].
createInstance(Ci.nsIAlertNotification);
alert.init(aName, aImageUrl, aTitle, aText, aTextClickable, aCookie,
aBidi, aLang, aDataStr, aPrincipal, aInPrivateBrowsing);
this.showAlert(alert, aAlertListener);
},
closeAlert: function(aName) {
cpmm.sendAsyncMessage(kMessageAlertNotificationClose, {
name: aName
});
},
// AlertsService.js custom implementation
_listeners: [],
receiveMessage: function(aMessage) {
let data = aMessage.data;
let listener = this._listeners[data.uid];
if (!listener) {
return;
}
let topic = data.topic;
try {
listener.observer.observe(null, topic, null);
} catch (e) {
if (topic === kTopicAlertFinished && listener.dbId) {
notificationStorage.delete(listener.manifestURL, listener.dbId);
}
}
// we're done with this notification
if (topic === kTopicAlertFinished) {
delete this._listeners[data.uid];
}
},
deserializeStructuredClone: function(dataString) {
if (!dataString) {
return null;
}
let scContainer = Cc["@mozilla.org/docshell/structured-clone-container;1"].
createInstance(Ci.nsIStructuredCloneContainer);
// The maximum supported structured-clone serialization format version
// as defined in "js/public/StructuredClone.h"
let JS_STRUCTURED_CLONE_VERSION = 4;
scContainer.initFromBase64(dataString, JS_STRUCTURED_CLONE_VERSION);
let dataObj = scContainer.deserializeToVariant();
// We have to check whether dataObj contains DOM objects (supported by
// nsIStructuredCloneContainer, but not by Cu.cloneInto), e.g. ImageData.
// After the structured clone callback systems will be unified, we'll not
// have to perform this check anymore.
try {
let data = Cu.cloneInto(dataObj, {});
} catch(e) { dataObj = null; }
return dataObj;
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AlertsService]);
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