renderer process notifications support

chrome/renderer/notification_provider.h

Index: chrome/renderer/notification_provider.h
diff --git a/chrome/renderer/notification_provider.h b/chrome/renderer/notification_provider.h
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+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_RENDERER_NOTIFICATION_PROVIDER_H_
+#define CHROME_RENDERER_NOTIFICATION_PROVIDER_H_
+
+#include <map>
+
+#include "chrome/common/desktop_notifications/active_notification_tracker.h"
+#include "ipc/ipc_channel.h"
+#include "ipc/ipc_channel_proxy.h"
+#include "webkit/api/public/WebNotification.h"
+#include "webkit/api/public/WebNotificationPresenter.h"
+
+class RenderView;
+namespace WebKit {
+class WebNotificationPermissionCallback;
+}
+
+class NotificationProvider : public WebKit::WebNotificationPresenter,
+                             public IPC::ChannelProxy::MessageFilter {
+ public:
+  explicit NotificationProvider(RenderView* view);
+  ~NotificationProvider() {}
+
+  // WebKit::WebNotificationPresenter interface.  Called from WebKit
+  // on the UI thread.
+  virtual bool show(const WebKit::WebNotification& proxy);
+  virtual void cancel(const WebKit::WebNotification& proxy);
+  virtual void objectDestroyed(const WebKit::WebNotification& proxy);
+  virtual WebKit::WebNotificationPresenter::Permission checkPermission(
+      const WebKit::WebString& origin);
+  virtual void requestPermission(const WebKit::WebString& origin, 
+      WebKit::WebNotificationPermissionCallback* callback);
+
+private:
+  // Internal methods used on the UI thread.
+  bool ShowHTML(const WebKit::WebNotification& notification, int id);
+  bool ShowText(const WebKit::WebNotification& notification, int id);
+
+  // Callback methods invoked when events happen on active notifications.
+  void OnDisplay(int id);
+  void OnError(int id, const WebKit::WebString& message);
+  void OnClose(int id, bool by_user);
+  void OnPermissionRequestComplete(int id);
+
+  // Internal versions of the IPC handlers which run on the UI thread.
+  void HandleOnDisplay(int id);
+  void HandleOnError(int id, const WebKit::WebString& message);
+  void HandleOnClose(int id, bool by_user);
+  void HandleOnPermissionRequestComplete(int id);
+
+  // IPC::ChannelProxy::MessageFilter override
+  virtual bool OnMessageReceived(const IPC::Message& message);
+
+  bool Send(IPC::Message* message);
+
+  // Non-owned pointer to the RenderView object which created and owns
+  // this object.
+  RenderView* view_;
+
+  // A tracker object which manages the active notifications and the IDs
+  // that are used to refer to them over IPC.
+  ActiveNotificationTracker manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(NotificationProvider);
+};
+
+#endif  // CHROME_RENDERER_NOTIFICATION_PROVIDER_H_