ui/aura/window_tree_host_x11.h

   1 // Copyright (c) 2012 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_AURA_WINDOW_TREE_HOST_X11_H_
   6 #define UI_AURA_WINDOW_TREE_HOST_X11_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "ui/aura/aura_export.h"
  10 #include "ui/aura/window_tree_host.h"
  11 #include "ui/events/event_source.h"
  12 #include "ui/events/platform/platform_event_dispatcher.h"
  13 #include "ui/gfx/insets.h"
  14 #include "ui/gfx/rect.h"
  15 #include "ui/gfx/x/x11_atom_cache.h"
  16
  17 // X forward decls to avoid including Xlib.h in a header file.
  18 typedef struct _XDisplay XDisplay;
  19 typedef unsigned long XID;
  20 typedef XID Window;
  21
  22 namespace ui {
  23 class MouseEvent;
  24 }
  25
  26 namespace aura {
  27
  28 namespace internal {
  29 class TouchEventCalibrate;
  30 }
  31
  32 class AURA_EXPORT WindowTreeHostX11 : public WindowTreeHost,
  33                                       public ui::EventSource,
  34                                       public ui::PlatformEventDispatcher {
  35
  36  public:
  37   explicit WindowTreeHostX11(const gfx::Rect& bounds);
  38   virtual ~WindowTreeHostX11();
  39
  40   // ui::PlatformEventDispatcher:
  41   virtual bool CanDispatchEvent(const ui::PlatformEvent& event) OVERRIDE;
  42   virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) OVERRIDE;
  43
  44   // WindowTreeHost:
  45   virtual ui::EventSource* GetEventSource() OVERRIDE;
  46   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
  47   virtual void Show() OVERRIDE;
  48   virtual void Hide() OVERRIDE;
  49   virtual gfx::Rect GetBounds() const OVERRIDE;
  50   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
  51   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
  52   virtual void SetCapture() OVERRIDE;
  53   virtual void ReleaseCapture() OVERRIDE;
  54   virtual void PostNativeEvent(const base::NativeEvent& event) OVERRIDE;
  55   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
  56   virtual void SetCursorNative(gfx::NativeCursor cursor_type) OVERRIDE;
  57   virtual void MoveCursorToNative(const gfx::Point& location) OVERRIDE;
  58   virtual void OnCursorVisibilityChangedNative(bool show) OVERRIDE;
  59
  60   // ui::EventSource overrides.
  61   virtual ui::EventProcessor* GetEventProcessor() OVERRIDE;
  62
  63  protected:
  64   // Called when X Configure Notify event is recevied.
  65   virtual void OnConfigureNotify();
  66
  67   // Translates the native mouse location into screen coordinates and
  68   // dispatches the event via WindowEventDispatcher.
  69   virtual void TranslateAndDispatchLocatedEvent(ui::LocatedEvent* event);
  70
  71   ::Window x_root_window() { return x_root_window_; }
  72   XDisplay* xdisplay() { return xdisplay_; }
  73   const gfx::Rect bounds() const { return bounds_; }
  74   ui::X11AtomCache* atom_cache() { return &atom_cache_; }
  75
  76  private:
  77   // Dispatches XI2 events. Note that some events targetted for the X root
  78   // window are dispatched to the aura root window (e.g. touch events after
  79   // calibration).
  80   void DispatchXI2Event(const base::NativeEvent& event);
  81
  82   // Sets the cursor on |xwindow_| to |cursor|.  Does not check or update
  83   // |current_cursor_|.
  84   void SetCursorInternal(gfx::NativeCursor cursor);
  85
  86   // The display and the native X window hosting the root window.
  87   XDisplay* xdisplay_;
  88   ::Window xwindow_;
  89
  90   // The native root window.
  91   ::Window x_root_window_;
  92
  93   // Current Aura cursor.
  94   gfx::NativeCursor current_cursor_;
  95
  96   // Is the window mapped to the screen?
  97   bool window_mapped_;
  98
  99   // The bounds of |xwindow_|.
 100   gfx::Rect bounds_;
 101
 102   scoped_ptr<internal::TouchEventCalibrate> touch_calibrate_;
 103
 104   ui::X11AtomCache atom_cache_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostX11);
 107 };
 108
 109 namespace test {
 110
 111 // Set the default value of the override redirect flag used to
 112 // create a X window for WindowTreeHostX11.
 113 AURA_EXPORT void SetUseOverrideRedirectWindowByDefault(bool override_redirect);
 114
 115 }  // namespace test
 116 }  // namespace aura
 117
 118 #endif  // UI_AURA_WINDOW_TREE_HOST_X11_H_