1 files changed, 153 insertions, 0 deletions
diff --git a/b2g/components/AlertsService.js b/b2g/components/AlertsService.js
new file mode 100644
index 000000000..19a164f0e
--- /dev/null
+++ b/b2g/components/AlertsService.js
@@ -0,0 +1,153 @@
+/* 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]);