ui/ozone/platform/dri/dri_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_OZONE_PLATFORM_DRI_DRI_WINDOW_DELEGATE_H_
   6 #define UI_OZONE_PLATFORM_DRI_DRI_WINDOW_DELEGATE_H_
   7
   8 #include <vector>
   9
  10 #include "ui/gfx/native_widget_types.h"
  11
  12 class SkBitmap;
  13
  14 namespace gfx {
  15 class Point;
  16 class Rect;
  17 }  // namespace gfx
  18
  19 namespace ui {
  20
  21 class HardwareDisplayController;
  22
  23 // Interface for the display-server half of a DriWindow.
  24 //
  25 // The main implementation of this lives in the process that owns the display
  26 // connection (usually the GPU process) and associates a platform window
  27 // (DriWindow) with a display. A window is associated with the display whose
  28 // bounds contains the window bounds. If there's no suitable display, the window
  29 // is disconnected and its contents will not be visible.
  30 //
  31 // In software mode, this is owned directly on DriWindow because the display
  32 // controller object is in the same process.
  33 //
  34 // In accelerated mode, there's a proxy implementation and calls are forwarded
  35 // to the real object in the GPU process via IPC.
  36 class DriWindowDelegate {
  37  public:
  38   virtual ~DriWindowDelegate() {}
  39
  40   virtual void Initialize() = 0;
  41
  42   virtual void Shutdown() = 0;
  43
  44   // Returns the accelerated widget associated with the delegate.
  45   virtual gfx::AcceleratedWidget GetAcceleratedWidget() = 0;
  46
  47   // Returns the current controller the window is displaying on. Callers should
  48   // not cache the result as the controller may change as the window is moved.
  49   virtual HardwareDisplayController* GetController() = 0;
  50
  51   // Called when the window is resized/moved.
  52   virtual void OnBoundsChanged(const gfx::Rect& bounds) = 0;
  53
  54   // Update the HW cursor bitmap & move to specified location. If
  55   // the bitmap is empty, the cursor is hidden.
  56   virtual void SetCursor(const std::vector<SkBitmap>& bitmaps,
  57                          const gfx::Point& location,
  58                          int frame_delay_ms) = 0;
  59
  60   // Update the HW cursor bitmap & move to specified location. If
  61   // the bitmap is empty, the cursor is hidden.
  62   virtual void SetCursorWithoutAnimations(const std::vector<SkBitmap>& bitmaps,
  63                                           const gfx::Point& location) = 0;
  64
  65   // Move the HW cursor to the specified location.
  66   virtual void MoveCursor(const gfx::Point& location) = 0;
  67 };
  68
  69 }  // namespace ui
  70
  71 #endif  // UI_OZONE_PLATFORM_DRI_DRI_WINDOW_DELEGATE_H_