chrome/browser/ui/webui/invalidations_message_handler.h

   1 // Copyright 2014 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 CHROME_BROWSER_UI_WEBUI_INVALIDATIONS_MESSAGE_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_INVALIDATIONS_MESSAGE_HANDLER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/values.h"
  11 #include "chrome/browser/invalidation/invalidation_logger_observer.h"
  12 #include "content/public/browser/web_ui_message_handler.h"
  13
  14 class Profile;
  15
  16 namespace invalidation {
  17 class InvalidationLogger;
  18 }  // namespace invalidation
  19
  20 // The implementation for the chrome://invalidations page.
  21 class InvalidationsMessageHandler
  22     : public content::WebUIMessageHandler,
  23       public invalidation::InvalidationLoggerObserver {
  24  public:
  25   InvalidationsMessageHandler();
  26   virtual ~InvalidationsMessageHandler();
  27
  28   // Implementation of InvalidationLoggerObserver
  29   virtual void OnRegistration(const base::DictionaryValue& details) OVERRIDE;
  30   virtual void OnUnregistration(const base::DictionaryValue& details) OVERRIDE;
  31   virtual void OnStateChange(const syncer::InvalidatorState& newState) OVERRIDE;
  32   virtual void OnUpdateIds(const base::DictionaryValue& details) OVERRIDE;
  33   virtual void OnDebugMessage(const base::DictionaryValue& details) OVERRIDE;
  34   virtual void OnInvalidation(
  35       const syncer::ObjectIdInvalidationMap& newInvalidations) OVERRIDE;
  36
  37   // Implementation of WebUIMessageHandler
  38   virtual void RegisterMessages() OVERRIDE;
  39
  40   void UpdateContent(const base::ListValue* args);
  41   void UIReady(const base::ListValue* args);
  42
  43  private:
  44   // The pointer to the internal InvalidatorService InvalidationLogger.
  45   // Used to get the information necessary to display to the JS and to
  46   // register ourselves as Observers for any notifications.
  47   invalidation::InvalidationLogger* logger_;
  48   // Check to see if we are already registered as an observer
  49   bool isRegistered;
  50   DISALLOW_COPY_AND_ASSIGN(InvalidationsMessageHandler);
  51 };
  52
  53 #endif  // CHROME_BROWSER_UI_WEBUI_INVALIDATIONS_MESSAGE_HANDLER_H_