chrome/browser/ui/webui/sync_internals_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_SYNC_INTERNALS_MESSAGE_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_MESSAGE_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/scoped_observer.h"
  14 #include "base/values.h"
  15 #include "chrome/browser/sync/profile_sync_service_observer.h"
  16 #include "chrome/browser/sync/protocol_event_observer.h"
  17 #include "content/public/browser/web_ui_message_handler.h"
  18 #include "sync/js/js_controller.h"
  19 #include "sync/js/js_event_handler.h"
  20 #include "sync/js/js_reply_handler.h"
  21
  22 class ProfileSyncService;
  23
  24 // The implementation for the chrome://sync-internals page.
  25 class SyncInternalsMessageHandler
  26     : public content::WebUIMessageHandler,
  27       public syncer::JsEventHandler,
  28       public syncer::JsReplyHandler,
  29       public ProfileSyncServiceObserver,
  30       public browser_sync::ProtocolEventObserver {
  31  public:
  32   SyncInternalsMessageHandler();
  33   virtual ~SyncInternalsMessageHandler();
  34
  35   virtual void RegisterMessages() OVERRIDE;
  36
  37   // Forwards requests to the JsController.
  38   void ForwardToJsController(const std::string& name, const base::ListValue*);
  39
  40   // Fires an event to send updated info back to the page.
  41   void HandleRequestUpdatedAboutInfo(const base::ListValue* args);
  42
  43   // Fires and event to send the list of types back to the page.
  44   void HandleRequestListOfTypes(const base::ListValue* args);
  45
  46   // syncer::JsEventHandler implementation.
  47   virtual void HandleJsEvent(
  48       const std::string& name,
  49       const syncer::JsEventDetails& details) OVERRIDE;
  50
  51   // syncer::JsReplyHandler implementation.
  52   virtual void HandleJsReply(
  53       const std::string& name,
  54       const syncer::JsArgList& args) OVERRIDE;
  55
  56   // ProfileSyncServiceObserver implementation.
  57   virtual void OnStateChanged() OVERRIDE;
  58
  59   // ProtocolEventObserver implementation.
  60   virtual void OnProtocolEvent(const syncer::ProtocolEvent& e) OVERRIDE;
  61
  62  private:
  63   // Helper function to register JsController function callbacks.
  64   void RegisterJsControllerCallback(const std::string& name);
  65
  66   // Fetches updated aboutInfo and sends it to the page in the form of an
  67   // onAboutInfoUpdated event.
  68   void SendAboutInfo();
  69
  70   ProfileSyncService* GetProfileSyncService();
  71
  72   base::WeakPtr<syncer::JsController> js_controller_;
  73   base::WeakPtrFactory<SyncInternalsMessageHandler> weak_ptr_factory_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(SyncInternalsMessageHandler);
  76 };
  77
  78 #endif  // CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_MESSAGE_HANDLER_H_