| // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #ifndef UI_SHELL_DIALOGS_BASE_SHELL_DIALOG_H_ | 
 | #define UI_SHELL_DIALOGS_BASE_SHELL_DIALOG_H_ | 
 |  | 
 | #include "ui/gfx/native_widget_types.h" | 
 | #include "ui/shell_dialogs/shell_dialogs_export.h" | 
 |  | 
 | namespace ui { | 
 |  | 
 | // A base class for shell dialogs. | 
 | class SHELL_DIALOGS_EXPORT BaseShellDialog { | 
 |  public: | 
 |   // Returns true if a shell dialog box is currently being shown modally | 
 |   // to the specified owner. | 
 |   virtual bool IsRunning(gfx::NativeWindow owning_window) const = 0; | 
 |  | 
 |   // Notifies the dialog box that the listener has been destroyed and it should | 
 |   // no longer be sent notifications. | 
 |   virtual void ListenerDestroyed() = 0; | 
 |  | 
 |  protected: | 
 |   virtual ~BaseShellDialog(); | 
 | }; | 
 |  | 
 | }  // namespace ui | 
 |  | 
 | #endif  // UI_SHELL_DIALOGS_BASE_SHELL_DIALOG_H_ | 
 |  |