ui/ozone/platform/drm/host/drm_window_host.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_DRM_HOST_DRM_WINDOW_HOST_H_
   6 #define UI_OZONE_PLATFORM_DRM_HOST_DRM_WINDOW_HOST_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "ui/display/types/display_snapshot.h"
  10 #include "ui/events/platform/platform_event_dispatcher.h"
  11 #include "ui/gfx/geometry/rect.h"
  12 #include "ui/gfx/native_widget_types.h"
  13 #include "ui/ozone/platform/drm/host/channel_observer.h"
  14 #include "ui/platform_window/platform_window.h"
  15
  16 namespace ui {
  17
  18 class DisplayManager;
  19 class DrmCursor;
  20 class DrmGpuPlatformSupportHost;
  21 class DrmGpuWindow;
  22 class DrmWindowHostManager;
  23 class EventFactoryEvdev;
  24
  25 // Implementation of the platform window. This object and its handle |widget_|
  26 // uniquely identify a window. Since the DRI/GBM platform is split into 2
  27 // pieces (Browser process and GPU process), internally we need to make sure the
  28 // state is synchronized between the 2 processes.
  29 //
  30 // |widget_| is used in both processes to uniquely identify the window. This
  31 // means that any state on the browser side needs to be propagated to the GPU.
  32 // State propagation needs to happen before the state change is acknowledged to
  33 // |delegate_| as |delegate_| is responsible for initializing the surface
  34 // associated with the window (the surface is created on the GPU process).
  35 class DrmWindowHost : public PlatformWindow,
  36                       public PlatformEventDispatcher,
  37                       public ChannelObserver {
  38  public:
  39   DrmWindowHost(PlatformWindowDelegate* delegate,
  40                 const gfx::Rect& bounds,
  41                 DrmGpuPlatformSupportHost* sender,
  42                 EventFactoryEvdev* event_factory,
  43                 DrmCursor* cursor,
  44                 DrmWindowHostManager* window_manager,
  45                 DisplayManager* display_manager);
  46   ~DrmWindowHost() override;
  47
  48   void Initialize();
  49
  50   gfx::AcceleratedWidget GetAcceleratedWidget();
  51
  52   gfx::Rect GetCursorConfinedBounds() const;
  53
  54   // PlatformWindow:
  55   void Show() override;
  56   void Hide() override;
  57   void Close() override;
  58   void SetBounds(const gfx::Rect& bounds) override;
  59   gfx::Rect GetBounds() override;
  60   void SetCapture() override;
  61   void ReleaseCapture() override;
  62   void ToggleFullscreen() override;
  63   void Maximize() override;
  64   void Minimize() override;
  65   void Restore() override;
  66   void SetCursor(PlatformCursor cursor) override;
  67   void MoveCursorTo(const gfx::Point& location) override;
  68   void ConfineCursorToBounds(const gfx::Rect& bounds) override;
  69
  70   // PlatformEventDispatcher:
  71   bool CanDispatchEvent(const PlatformEvent& event) override;
  72   uint32_t DispatchEvent(const PlatformEvent& event) override;
  73
  74   // ChannelObserver:
  75   void OnChannelEstablished() override;
  76   void OnChannelDestroyed() override;
  77
  78  private:
  79   void SendBoundsChange();
  80
  81   PlatformWindowDelegate* delegate_;      // Not owned.
  82   DrmGpuPlatformSupportHost* sender_;     // Not owned.
  83   EventFactoryEvdev* event_factory_;      // Not owned.
  84   DrmCursor* cursor_;                     // Not owned.
  85   DrmWindowHostManager* window_manager_;  // Not owned.
  86   DisplayManager* display_manager_;       // Not owned.
  87
  88   gfx::Rect bounds_;
  89   gfx::AcceleratedWidget widget_;
  90
  91   gfx::Rect cursor_confined_bounds_;
  92
  93   DISALLOW_COPY_AND_ASSIGN(DrmWindowHost);
  94 };
  95
  96 }  // namespace ui
  97
  98 #endif  // UI_OZONE_PLATFORM_DRM_HOST_DRM_WINDOW_HOST_H_