chrome/browser/ui/webui/chromeos/login/screen_manager_handler.h

   1 // Copyright (c) 2013 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_CHROMEOS_LOGIN_SCREEN_MANAGER_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SCREEN_MANAGER_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
  13
  14 namespace base {
  15 class DictionaryValue;
  16 }
  17
  18 namespace chromeos {
  19
  20 class ScreenManagerHandler : public BaseScreenHandler {
  21  public:
  22   class Delegate {
  23    public:
  24     virtual ~Delegate() {}
  25
  26     virtual void OnButtonPressed(const std::string& screen_name,
  27                                  const std::string& button_id) = 0;
  28     virtual void OnContextChanged(const std::string& screen_name,
  29                                   const base::DictionaryValue* diff) = 0;
  30   };
  31
  32   ScreenManagerHandler();
  33   virtual ~ScreenManagerHandler();
  34
  35   void SetDelegate(Delegate* delegate);
  36
  37   // BaseScreenHandler implementation:
  38   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
  39   virtual void Initialize() OVERRIDE;
  40
  41   // WebUIMessageHandler implementation.
  42   virtual void RegisterMessages() OVERRIDE;
  43
  44  private:
  45   void HandleButtonPressed(const std::string& screen_name,
  46                            const std::string& button_id);
  47   void HandleContextChanged(const std::string& screen_name,
  48                             const base::DictionaryValue* diff);
  49
  50   Delegate* delegate_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(ScreenManagerHandler);
  53 };
  54
  55 }  // namespace chromeos
  56
  57 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SCREEN_MANAGER_HANDLER_H_