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/invalidation_logger_observer.h"
13#include "components/invalidation/invalidation_util.h"
14#include "content/public/browser/web_ui_message_handler.h"
15
16class Profile;
17
18namespace invalidation {
19class InvalidationLogger;
20}  // namespace invalidation
21
22namespace syncer {
23class InvalidationHandler;
24}  // namespace syncer
25
26// The implementation for the chrome://invalidations page.
27class InvalidationsMessageHandler
28    : public content::WebUIMessageHandler,
29      public invalidation::InvalidationLoggerObserver {
30 public:
31  InvalidationsMessageHandler();
32  virtual ~InvalidationsMessageHandler();
33
34  // Implementation of InvalidationLoggerObserver.
35  virtual void OnRegistrationChange(
36      const std::multiset<std::string>& registered_handlers) OVERRIDE;
37  virtual void OnStateChange(const syncer::InvalidatorState& new_state,
38                             const base::Time& last_change_timestamp)
39      OVERRIDE;
40  virtual void OnUpdateIds(const std::string& handler_name,
41                           const syncer::ObjectIdCountMap& ids_set) OVERRIDE;
42  virtual void OnDebugMessage(const base::DictionaryValue& details) OVERRIDE;
43  virtual void OnInvalidation(
44      const syncer::ObjectIdInvalidationMap& new_invalidations) OVERRIDE;
45  virtual void OnDetailedStatus(const base::DictionaryValue& network_details)
46      OVERRIDE;
47
48  // Implementation of WebUIMessageHandler.
49  virtual void RegisterMessages() OVERRIDE;
50
51  // Triggers the logger to send the current state and objects ids.
52  void UpdateContent(const base::ListValue* args);
53
54  // Called by the javascript whenever the page is ready to receive messages.
55  void UIReady(const base::ListValue* args);
56
57  // Calls the InvalidationService for any internal details.
58  void HandleRequestDetailedStatus(const base::ListValue* args);
59
60 private:
61  // The pointer to the internal InvalidatorService InvalidationLogger.
62  // Used to get the information necessary to display to the JS and to
63  // register ourselves as Observers for any notifications.
64  invalidation::InvalidationLogger* logger_;
65
66  base::WeakPtrFactory<InvalidationsMessageHandler> weak_ptr_factory_;
67
68  DISALLOW_COPY_AND_ASSIGN(InvalidationsMessageHandler);
69};
70
71#endif  // CHROME_BROWSER_UI_WEBUI_INVALIDATIONS_MESSAGE_HANDLER_H_
72