components/native_viewport/platform_viewport.h

   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 COMPONENTS_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
   6 #define COMPONENTS_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "components/native_viewport/public/interfaces/native_viewport.mojom.h"
  10 #include "ui/gfx/geometry/size.h"
  11 #include "ui/gfx/native_widget_types.h"
  12 #include "ui/mojo/events/input_events.mojom.h"
  13
  14 namespace gfx {
  15 class Rect;
  16 }
  17
  18 namespace native_viewport {
  19
  20 // Encapsulation of platform-specific Viewport.
  21 class PlatformViewport {
  22  public:
  23   class Delegate {
  24    public:
  25     virtual ~Delegate() {}
  26
  27     virtual void OnMetricsChanged(mojo::ViewportMetricsPtr metrics) = 0;
  28     virtual void OnAcceleratedWidgetAvailable(
  29         gfx::AcceleratedWidget widget) = 0;
  30     virtual void OnAcceleratedWidgetDestroyed() = 0;
  31     virtual bool OnEvent(mojo::EventPtr event) = 0;
  32     virtual void OnDestroyed() = 0;
  33   };
  34
  35   virtual ~PlatformViewport() {}
  36
  37   virtual void Init(const gfx::Rect& bounds) = 0;
  38   virtual void Show() = 0;
  39   virtual void Hide() = 0;
  40   virtual void Close() = 0;
  41   virtual gfx::Size GetSize() = 0;
  42   virtual void SetBounds(const gfx::Rect& bounds) = 0;
  43
  44   static scoped_ptr<PlatformViewport> Create(Delegate* delegate);
  45 };
  46
  47 }  // namespace native_viewport
  48
  49 #endif  // COMPONENTS_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_