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   ~WindowTreeHostX11() override;
  39
  40   // ui::PlatformEventDispatcher:
  41   bool CanDispatchEvent(const ui::PlatformEvent& event) override;
  42   uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
  43
  44   // WindowTreeHost:
  45   ui::EventSource* GetEventSource() override;
  46   gfx::AcceleratedWidget GetAcceleratedWidget() override;
  47   void Show() override;
  48   void Hide() override;
  49   gfx::Rect GetBounds() const override;
  50   void SetBounds(const gfx::Rect& bounds) override;
  51   gfx::Point GetLocationOnNativeScreen() const override;
  52   void SetCapture() override;
  53   void ReleaseCapture() override;
  54   void PostNativeEvent(const base::NativeEvent& event) override;
  55   void SetCursorNative(gfx::NativeCursor cursor_type) override;
  56   void MoveCursorToNative(const gfx::Point& location) override;
  57   void OnCursorVisibilityChangedNative(bool show) override;
  58
  59   // ui::EventSource overrides.
  60   ui::EventProcessor* GetEventProcessor() override;
  61
  62  protected:
  63   // Called when X Configure Notify event is recevied.
  64   virtual void OnConfigureNotify();
  65
  66   // Translates the native mouse location into screen coordinates and
  67   // dispatches the event via WindowEventDispatcher.
  68   virtual void TranslateAndDispatchLocatedEvent(ui::LocatedEvent* event);
  69
  70   ::Window x_root_window() { return x_root_window_; }
  71   XDisplay* xdisplay() { return xdisplay_; }
  72   const gfx::Rect bounds() const { return bounds_; }
  73   ui::X11AtomCache* atom_cache() { return &atom_cache_; }
  74
  75  private:
  76   // Dispatches XI2 events. Note that some events targetted for the X root
  77   // window are dispatched to the aura root window (e.g. touch events after
  78   // calibration).
  79   void DispatchXI2Event(const base::NativeEvent& event);
  80
  81   // Sets the cursor on |xwindow_| to |cursor|.  Does not check or update
  82   // |current_cursor_|.
  83   void SetCursorInternal(gfx::NativeCursor cursor);
  84
  85   // The display and the native X window hosting the root window.
  86   XDisplay* xdisplay_;
  87   ::Window xwindow_;
  88
  89   // The native root window.
  90   ::Window x_root_window_;
  91
  92   // Current Aura cursor.
  93   gfx::NativeCursor current_cursor_;
  94
  95   // Is the window mapped to the screen?
  96   bool window_mapped_;
  97
  98   // The bounds of |xwindow_|.
  99   gfx::Rect bounds_;
 100
 101   scoped_ptr<internal::TouchEventCalibrate> touch_calibrate_;
 102
 103   ui::X11AtomCache atom_cache_;
 104
 105   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostX11);
 106 };
 107
 108 namespace test {
 109
 110 // Set the default value of the override redirect flag used to
 111 // create a X window for WindowTreeHostX11.
 112 AURA_EXPORT void SetUseOverrideRedirectWindowByDefault(bool override_redirect);
 113
 114 }  // namespace test
 115 }  // namespace aura
 116
 117 #endif  // UI_AURA_WINDOW_TREE_HOST_X11_H_