Bug 1216271 - Display a notification upon upgrade for users who currently allow notifications for at least one site

application/palemoon/components/nsBrowserGlue.js

@@ -39,6 +39,9 @@ Cu.import("resource://gre/modules/Services.jsm");
   ["DateTimePickerHelper", "resource://gre/modules/DateTimePickerHelper.jsm"],
 ].forEach(([name, resource]) => XPCOMUtils.defineLazyModuleGetter(this, name, resource));
 
+XPCOMUtils.defineLazyServiceGetter(this, "AlertsService",
+                                   "@mozilla.org/alerts-service;1", "nsIAlertsService");
+
 const PREF_PLUGINS_NOTIFYUSER = "plugins.update.notifyUser";
 const PREF_PLUGINS_UPDATEURL  = "plugins.update.url";
 
@@ -825,16 +828,6 @@ BrowserGlue.prototype = {
     if (actions.indexOf("showAlert") == -1)
       return;
 
-    let notifier;
-    try {
-      notifier = Cc["@mozilla.org/alerts-service;1"].
-                 getService(Ci.nsIAlertsService);
-    }
-    catch (e) {
-      // nsIAlertsService is not available for this platform
-      return;
-    }
-
     let title = getNotifyString({propName: "alertTitle",
                                  stringName: "puAlertTitle",
                                  stringParams: [appName]});
@@ -856,10 +849,10 @@ BrowserGlue.prototype = {
     try {
       // This will throw NS_ERROR_NOT_AVAILABLE if the notification cannot
       // be displayed per the idl.
-      notifier.showAlertNotification(null, title, text,
-                                     true, url, clickCallback);
+      AlertsService.showAlertNotification(null, title, text,
     }
     catch (e) {
+      Cu.reportError(e);
     }
   },
 
@@ -1191,7 +1184,7 @@ BrowserGlue.prototype = {
   },
 
   _migrateUI: function BG__migrateUI() {
-    const UI_VERSION = 15;
+    const UI_VERSION = 17;
     const BROWSER_DOCURL = "chrome://browser/content/browser.xul#";
     let currentUIVersion = 0;
     try {
@@ -1386,6 +1379,10 @@ BrowserGlue.prototype = {
       }
     }
 
+    if (currentUIVersion < 17) {
+      this._notifyNotificationsUpgrade();
+    }
+
     if (this._dirty)
       this._dataSource.QueryInterface(Ci.nsIRDFRemoteDataSource).Flush();
 
@@ -1396,6 +1393,41 @@ BrowserGlue.prototype = {
     Services.prefs.setIntPref("browser.migration.version", UI_VERSION);
   },
 
+  _hasExistingNotificationPermission: function BG__hasExistingNotificationPermission() {
+    let enumerator = Services.perms.enumerator;
+    while (enumerator.hasMoreElements()) {
+      let permission = enumerator.getNext().QueryInterface(Ci.nsIPermission);
+      if (permission.type == "desktop-notification") {
+        return true;
+      }
+    }
+    return false;
+  },
+
+  _notifyNotificationsUpgrade: function BG__notifyNotificationsUpgrade() {
+    if (!this._hasExistingNotificationPermission()) {
+      return;
+    }
+    function clickCallback(subject, topic, data) {
+      if (topic != "alertclickcallback")
+        return;
+      let win = RecentWindow.getMostRecentBrowserWindow();
+      win.openUILinkIn(data, "tab");
+    }
+    let imageURL = "chrome://browser/skin/web-notifications-icon.svg";
+    let title = gBrowserBundle.GetStringFromName("webNotifications.upgradeTitle");
+    let text = gBrowserBundle.GetStringFromName("webNotifications.upgradeInfo");
+    let url = Services.urlFormatter.formatURLPref("browser.push.warning.infoURL");
+
+    try {
+      AlertsService.showAlertNotification(imageURL, title, text,
+                                          true, url, clickCallback);
+    }
+    catch (e) {
+      Cu.reportError(e);
+    }
+  },
+
   _getPersist: function BG__getPersist(aSource, aProperty) {
     var target = this._dataSource.GetTarget(aSource, aProperty, true);
     if (target instanceof Ci.nsIRDFLiteral)

application/palemoon/locales/en-US/chrome/browser/browser.properties

@@ -304,6 +304,8 @@ webNotifications.alwaysShow.accesskey=A
 webNotifications.neverShow=Always Block Notifications
 webNotifications.neverShow.accesskey=N
 webNotifications.showFromSite=Would you like to show notifications from %S?
+webNotifications.upgradeTitle=Upgraded notifications
+webNotifications.upgradeInfo=You will receive notifications from sites, even those not open in a tab. Click to learn more.
 
 # Pointer lock UI