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