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      1 // Copyright 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 MOJO_SERVICES_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
      6 #define MOJO_SERVICES_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "ui/gfx/native_widget_types.h"
     10 #include "ui/gfx/size.h"
     11 
     12 namespace gfx {
     13 class Rect;
     14 }
     15 
     16 namespace ui {
     17 class Event;
     18 }
     19 
     20 namespace mojo {
     21 
     22 // Encapsulation of platform-specific Viewport.
     23 class PlatformViewport {
     24  public:
     25   class Delegate {
     26    public:
     27     virtual ~Delegate() {}
     28 
     29     virtual void OnBoundsChanged(const gfx::Rect& rect) = 0;
     30     virtual void OnAcceleratedWidgetAvailable(
     31         gfx::AcceleratedWidget widget) = 0;
     32     virtual bool OnEvent(ui::Event* ui_event) = 0;
     33     virtual void OnDestroyed() = 0;
     34   };
     35 
     36   virtual ~PlatformViewport() {}
     37 
     38   virtual void Init(const gfx::Rect& bounds) = 0;
     39   virtual void Show() = 0;
     40   virtual void Hide() = 0;
     41   virtual void Close() = 0;
     42   virtual gfx::Size GetSize() = 0;
     43   virtual void SetBounds(const gfx::Rect& bounds) = 0;
     44 
     45   virtual void SetCapture() = 0;
     46   virtual void ReleaseCapture() = 0;
     47 
     48   static scoped_ptr<PlatformViewport> Create(Delegate* delegate);
     49 };
     50 
     51 }  // namespace mojo
     52 
     53 #endif  // MOJO_SERVICES_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
     54