ui/platform_window/platform_window_delegate.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 UI_PLATFORM_WINDOW_PLATFORM_WINDOW_DELEGATE_H_
   6 #define UI_PLATFORM_WINDOW_PLATFORM_WINDOW_DELEGATE_H_
   7
   8 #include "ui/gfx/native_widget_types.h"
   9
  10 namespace gfx {
  11 class Rect;
  12 }
  13
  14 namespace ui {
  15
  16 class Event;
  17
  18 enum PlatformWindowState {
  19   PLATFORM_WINDOW_STATE_UNKNOWN,
  20   PLATFORM_WINDOW_STATE_MAXIMIZED,
  21   PLATFORM_WINDOW_STATE_MINIMIZED,
  22   PLATFORM_WINDOW_STATE_NORMAL,
  23   PLATFORM_WINDOW_STATE_FULLSCREEN,
  24 };
  25
  26 class PlatformWindowDelegate {
  27  public:
  28   virtual ~PlatformWindowDelegate() {}
  29
  30   // Note that |new_bounds| is in physical screen coordinates.
  31   virtual void OnBoundsChanged(const gfx::Rect& new_bounds) = 0;
  32
  33   // Note that |damaged_region| is in the platform-window's coordinates, in
  34   // physical pixels.
  35   virtual void OnDamageRect(const gfx::Rect& damaged_region) = 0;
  36
  37   virtual void DispatchEvent(Event* event) = 0;
  38
  39   virtual void OnCloseRequest() = 0;
  40   virtual void OnClosed() = 0;
  41
  42   virtual void OnWindowStateChanged(PlatformWindowState new_state) = 0;
  43
  44   virtual void OnLostCapture() = 0;
  45
  46   virtual void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
  47                                             float device_pixel_ratio) = 0;
  48
  49   virtual void OnActivationChanged(bool active) = 0;
  50 };
  51
  52 }  // namespace ui
  53
  54 #endif  // UI_PLATFORM_WINDOW_PLATFORM_WINDOW_DELEGATE_H_