content/renderer/notification_provider.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_NOTIFICATION_PROVIDER_H_
   6 #define CONTENT_RENDERER_NOTIFICATION_PROVIDER_H_
   7
   8 #include "base/memory/scoped_vector.h"
   9 #include "content/public/renderer/render_frame_observer.h"
  10 #include "content/renderer/active_notification_tracker.h"
  11 #include "third_party/WebKit/public/web/WebNotification.h"
  12 #include "third_party/WebKit/public/web/WebNotificationPresenter.h"
  13
  14 class SkBitmap;
  15
  16 namespace content {
  17
  18 class NotificationIconLoader;
  19
  20 // NotificationProvider class is owned by the RenderFrame.  Only to be used on
  21 // the main thread.
  22 class NotificationProvider : public RenderFrameObserver,
  23                              public blink::WebNotificationPresenter {
  24  public:
  25   explicit NotificationProvider(RenderFrame* render_frame);
  26   ~NotificationProvider() override;
  27
  28  private:
  29   // RenderFrameObserver implementation.
  30   bool OnMessageReceived(const IPC::Message& message) override;
  31
  32   // blink::WebNotificationPresenter implementation.
  33   virtual bool show(const blink::WebNotification& proxy);
  34   virtual void cancel(const blink::WebNotification& proxy);
  35   virtual void objectDestroyed(const blink::WebNotification& proxy);
  36   virtual blink::WebNotificationPresenter::Permission checkPermission(
  37       const blink::WebSecurityOrigin& origin);
  38
  39   // Sends an IPC to the browser process to display the notification identified
  40   // by |notification|, accompanied by the downloaded icon.
  41   void DisplayNotification(int notification_id, const SkBitmap& icon);
  42
  43   // Removes the IconDownload object associated with |notification_id|, stopping
  44   // any in-progress download. Returns whether the notification was removed.
  45   bool RemovePendingNotification(int notification_id);
  46
  47   // IPC handlers.
  48   void OnDisplay(int id);
  49   void OnError(int id);
  50   void OnClose(int id, bool by_user);
  51   void OnClick(int id);
  52   void OnNavigate();
  53
  54   // A vector tracking notifications whose icon is still being downloaded.
  55   typedef ScopedVector<NotificationIconLoader> PendingNotifications;
  56   PendingNotifications pending_notifications_;
  57
  58   // A tracker object which manages the active notifications and the IDs
  59   // that are used to refer to them over IPC.
  60   ActiveNotificationTracker manager_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(NotificationProvider);
  63 };
  64
  65 }  // namespace content
  66
  67 #endif  // CONTENT_RENDERER_NOTIFICATION_PROVIDER_H_