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/memory/weak_ptr.h"
  11 #include "base/values.h"
  12 #include "components/invalidation/impl/invalidation_logger_observer.h"
  13 #include "components/invalidation/public/invalidation_util.h"
  14 #include "content/public/browser/web_ui_message_handler.h"
  15
  16 class Profile;
  17
  18 namespace invalidation {
  19 class InvalidationLogger;
  20 }  // namespace invalidation
  21
  22 namespace syncer {
  23 class InvalidationHandler;
  24 }  // namespace syncer
  25
  26 // The implementation for the chrome://invalidations page.
  27 class InvalidationsMessageHandler
  28     : public content::WebUIMessageHandler,
  29       public invalidation::InvalidationLoggerObserver {
  30  public:
  31   InvalidationsMessageHandler();
  32   ~InvalidationsMessageHandler() override;
  33
  34   // Implementation of InvalidationLoggerObserver.
  35   void OnRegistrationChange(
  36       const std::multiset<std::string>& registered_handlers) override;
  37   void OnStateChange(const syncer::InvalidatorState& new_state,
  38                      const base::Time& last_change_timestamp) override;
  39   void OnUpdateIds(const std::string& handler_name,
  40                    const syncer::ObjectIdCountMap& ids_set) override;
  41   void OnDebugMessage(const base::DictionaryValue& details) override;
  42   void OnInvalidation(
  43       const syncer::ObjectIdInvalidationMap& new_invalidations) override;
  44   void OnDetailedStatus(const base::DictionaryValue& network_details) override;
  45
  46   // Implementation of WebUIMessageHandler.
  47   void RegisterMessages() override;
  48
  49   // Triggers the logger to send the current state and objects ids.
  50   void UpdateContent(const base::ListValue* args);
  51
  52   // Called by the javascript whenever the page is ready to receive messages.
  53   void UIReady(const base::ListValue* args);
  54
  55   // Calls the InvalidationService for any internal details.
  56   void HandleRequestDetailedStatus(const base::ListValue* args);
  57
  58  private:
  59   // The pointer to the internal InvalidatorService InvalidationLogger.
  60   // Used to get the information necessary to display to the JS and to
  61   // register ourselves as Observers for any notifications.
  62   invalidation::InvalidationLogger* logger_;
  63
  64   base::WeakPtrFactory<InvalidationsMessageHandler> weak_ptr_factory_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(InvalidationsMessageHandler);
  67 };
  68
  69 #endif  // CHROME_BROWSER_UI_WEBUI_INVALIDATIONS_MESSAGE_HANDLER_H_