ui/views/widget/desktop_aura/desktop_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_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_
   6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_
   7
   8 #include <X11/extensions/shape.h>
   9 #include <X11/Xlib.h>
  10
  11 #include "base/basictypes.h"
  12 #include "base/cancelable_callback.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/observer_list.h"
  15 #include "ui/aura/window_tree_host.h"
  16 #include "ui/base/cursor/cursor_loader_x11.h"
  17 #include "ui/events/event_source.h"
  18 #include "ui/events/platform/platform_event_dispatcher.h"
  19 #include "ui/gfx/geometry/insets.h"
  20 #include "ui/gfx/geometry/rect.h"
  21 #include "ui/gfx/geometry/size.h"
  22 #include "ui/gfx/x/x11_atom_cache.h"
  23 #include "ui/views/views_export.h"
  24 #include "ui/views/widget/desktop_aura/desktop_window_tree_host.h"
  25
  26 namespace gfx {
  27 class ImageSkia;
  28 class ImageSkiaRep;
  29 }
  30
  31 namespace ui {
  32 class EventHandler;
  33 }
  34
  35 namespace views {
  36 class DesktopDragDropClientAuraX11;
  37 class DesktopDispatcherClient;
  38 class DesktopWindowTreeHostObserverX11;
  39 class X11DesktopWindowMoveClient;
  40 class X11WindowEventFilter;
  41
  42 class VIEWS_EXPORT DesktopWindowTreeHostX11
  43     : public DesktopWindowTreeHost,
  44       public aura::WindowTreeHost,
  45       public ui::EventSource,
  46       public ui::PlatformEventDispatcher {
  47  public:
  48   DesktopWindowTreeHostX11(
  49       internal::NativeWidgetDelegate* native_widget_delegate,
  50       DesktopNativeWidgetAura* desktop_native_widget_aura);
  51   ~DesktopWindowTreeHostX11() override;
  52
  53   // A way of converting an X11 |xid| host window into a |content_window_|.
  54   static aura::Window* GetContentWindowForXID(XID xid);
  55
  56   // A way of converting an X11 |xid| host window into this object.
  57   static DesktopWindowTreeHostX11* GetHostForXID(XID xid);
  58
  59   // Get all open top-level windows. This includes windows that may not be
  60   // visible. This list is sorted in their stacking order, i.e. the first window
  61   // is the topmost window.
  62   static std::vector<aura::Window*> GetAllOpenWindows();
  63
  64   // Returns the current bounds in terms of the X11 Root Window.
  65   gfx::Rect GetX11RootWindowBounds() const;
  66
  67   // Returns the current bounds in terms of the X11 Root Window including the
  68   // borders provided by the window manager (if any).
  69   gfx::Rect GetX11RootWindowOuterBounds() const;
  70
  71   // Returns the window shape if the window is not rectangular. Returns NULL
  72   // otherwise.
  73   ::Region GetWindowShape() const;
  74
  75   // Called by X11DesktopHandler to notify us that the native windowing system
  76   // has changed our activation.
  77   void HandleNativeWidgetActivationChanged(bool active);
  78
  79   void AddObserver(views::DesktopWindowTreeHostObserverX11* observer);
  80   void RemoveObserver(views::DesktopWindowTreeHostObserverX11* observer);
  81
  82   // Swaps the current handler for events in the non client view with |handler|.
  83   void SwapNonClientEventHandler(scoped_ptr<ui::EventHandler> handler);
  84
  85   // Deallocates the internal list of open windows.
  86   static void CleanUpWindowList();
  87
  88  protected:
  89   // Overridden from DesktopWindowTreeHost:
  90   void Init(aura::Window* content_window,
  91             const Widget::InitParams& params) override;
  92   void OnNativeWidgetCreated(const Widget::InitParams& params) override;
  93   scoped_ptr<corewm::Tooltip> CreateTooltip() override;
  94   scoped_ptr<aura::client::DragDropClient> CreateDragDropClient(
  95       DesktopNativeCursorManager* cursor_manager) override;
  96   void Close() override;
  97   void CloseNow() override;
  98   aura::WindowTreeHost* AsWindowTreeHost() override;
  99   void ShowWindowWithState(ui::WindowShowState show_state) override;
 100   void ShowMaximizedWithBounds(const gfx::Rect& restored_bounds) override;
 101   bool IsVisible() const override;
 102   void SetSize(const gfx::Size& requested_size) override;
 103   void StackAtTop() override;
 104   void CenterWindow(const gfx::Size& size) override;
 105   void GetWindowPlacement(gfx::Rect* bounds,
 106                           ui::WindowShowState* show_state) const override;
 107   gfx::Rect GetWindowBoundsInScreen() const override;
 108   gfx::Rect GetClientAreaBoundsInScreen() const override;
 109   gfx::Rect GetRestoredBounds() const override;
 110   gfx::Rect GetWorkAreaBoundsInScreen() const override;
 111   void SetShape(gfx::NativeRegion native_region) override;
 112   void Activate() override;
 113   void Deactivate() override;
 114   bool IsActive() const override;
 115   void Maximize() override;
 116   void Minimize() override;
 117   void Restore() override;
 118   bool IsMaximized() const override;
 119   bool IsMinimized() const override;
 120   bool HasCapture() const override;
 121   void SetAlwaysOnTop(bool always_on_top) override;
 122   bool IsAlwaysOnTop() const override;
 123   void SetVisibleOnAllWorkspaces(bool always_visible) override;
 124   bool SetWindowTitle(const base::string16& title) override;
 125   void ClearNativeFocus() override;
 126   Widget::MoveLoopResult RunMoveLoop(
 127       const gfx::Vector2d& drag_offset,
 128       Widget::MoveLoopSource source,
 129       Widget::MoveLoopEscapeBehavior escape_behavior) override;
 130   void EndMoveLoop() override;
 131   void SetVisibilityChangedAnimationsEnabled(bool value) override;
 132   bool ShouldUseNativeFrame() const override;
 133   bool ShouldWindowContentsBeTransparent() const override;
 134   void FrameTypeChanged() override;
 135   void SetFullscreen(bool fullscreen) override;
 136   bool IsFullscreen() const override;
 137   void SetOpacity(unsigned char opacity) override;
 138   void SetWindowIcons(const gfx::ImageSkia& window_icon,
 139                       const gfx::ImageSkia& app_icon) override;
 140   void InitModalType(ui::ModalType modal_type) override;
 141   void FlashFrame(bool flash_frame) override;
 142   void OnRootViewLayout() override;
 143   void OnNativeWidgetFocus() override;
 144   void OnNativeWidgetBlur() override;
 145   bool IsAnimatingClosed() const override;
 146   bool IsTranslucentWindowOpacitySupported() const override;
 147   void SizeConstraintsChanged() override;
 148
 149   // Overridden from aura::WindowTreeHost:
 150   gfx::Transform GetRootTransform() const override;
 151   ui::EventSource* GetEventSource() override;
 152   gfx::AcceleratedWidget GetAcceleratedWidget() override;
 153   void Show() override;
 154   void Hide() override;
 155   gfx::Rect GetBounds() const override;
 156   void SetBounds(const gfx::Rect& requested_bounds_in_pixels) override;
 157   gfx::Point GetLocationOnNativeScreen() const override;
 158   void SetCapture() override;
 159   void ReleaseCapture() override;
 160   void SetCursorNative(gfx::NativeCursor cursor) override;
 161   void MoveCursorToNative(const gfx::Point& location) override;
 162   void OnCursorVisibilityChangedNative(bool show) override;
 163
 164   // Overridden frm ui::EventSource
 165   ui::EventProcessor* GetEventProcessor() override;
 166
 167  private:
 168   friend class DesktopWindowTreeHostX11HighDPITest;
 169   // Initializes our X11 surface to draw on. This method performs all
 170   // initialization related to talking to the X11 server.
 171   void InitX11Window(const Widget::InitParams& params);
 172
 173   // Creates an aura::WindowEventDispatcher to contain the |content_window|,
 174   // along with all aura client objects that direct behavior.
 175   aura::WindowEventDispatcher* InitDispatcher(const Widget::InitParams& params);
 176
 177   // Adjusts |requested_size| to avoid the WM "feature" where setting the
 178   // window size to the monitor size causes the WM to set the EWMH for
 179   // fullscreen.
 180   gfx::Size AdjustSize(const gfx::Size& requested_size);
 181
 182   // Called when |xwindow_|'s _NET_WM_STATE property is updated.
 183   void OnWMStateUpdated();
 184
 185   // Called when |xwindow_|'s _NET_FRAME_EXTENTS property is updated.
 186   void OnFrameExtentsUpdated();
 187
 188   // Updates |xwindow_|'s minimum and maximum size.
 189   void UpdateMinAndMaxSize();
 190
 191   // Updates |xwindow_|'s _NET_WM_USER_TIME if |xwindow_| is active.
 192   void UpdateWMUserTime(const ui::PlatformEvent& event);
 193
 194   // Sends a message to the x11 window manager, enabling or disabling the
 195   // states |state1| and |state2|.
 196   void SetWMSpecState(bool enabled, ::Atom state1, ::Atom state2);
 197
 198   // Checks if the window manager has set a specific state.
 199   bool HasWMSpecProperty(const char* property) const;
 200
 201   // Sets whether the window's borders are provided by the window manager.
 202   void SetUseNativeFrame(bool use_native_frame);
 203
 204   // Dispatches a mouse event, taking mouse capture into account. If a
 205   // different host has capture, we translate the event to its coordinate space
 206   // and dispatch it to that host instead.
 207   void DispatchMouseEvent(ui::MouseEvent* event);
 208
 209   // Dispatches a touch event, taking capture into account. If a different host
 210   // has capture, then touch-press events are translated to its coordinate space
 211   // and dispatched to that host instead.
 212   void DispatchTouchEvent(ui::TouchEvent* event);
 213
 214   // Updates the location of |located_event| to be in |host|'s coordinate system
 215   // so that it can be dispatched to |host|.
 216   void ConvertEventToDifferentHost(ui::LocatedEvent* located_event,
 217                                    DesktopWindowTreeHostX11* host);
 218
 219   // Resets the window region for the current widget bounds if necessary.
 220   void ResetWindowRegion();
 221
 222   // Serializes an image to the format used by _NET_WM_ICON.
 223   void SerializeImageRepresentation(const gfx::ImageSkiaRep& rep,
 224                                     std::vector<unsigned long>* data);
 225
 226   // Returns an 8888 ARGB visual. Can return NULL if there is no matching
 227   // visual on this display.
 228   Visual* GetARGBVisual();
 229
 230   // See comment for variable open_windows_.
 231   static std::list<XID>& open_windows();
 232
 233   // Map the window (shows it) taking into account the given |show_state|.
 234   void MapWindow(ui::WindowShowState show_state);
 235
 236   void SetWindowTransparency();
 237
 238   // Relayout the widget's client and non-client views.
 239   void Relayout();
 240
 241   // ui::PlatformEventDispatcher:
 242   bool CanDispatchEvent(const ui::PlatformEvent& event) override;
 243   uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
 244
 245   void DelayedResize(const gfx::Size& size_in_pixels);
 246
 247   gfx::Rect GetWorkAreaBoundsInPixels() const;
 248   gfx::Rect ToDIPRect(const gfx::Rect& rect_in_pixels) const;
 249   gfx::Rect ToPixelRect(const gfx::Rect& rect_in_dip) const;
 250
 251   // X11 things
 252   // The display and the native X window hosting the root window.
 253   XDisplay* xdisplay_;
 254   ::Window xwindow_;
 255
 256   // The native root window.
 257   ::Window x_root_window_;
 258
 259   ui::X11AtomCache atom_cache_;
 260
 261   // Is the window mapped to the screen?
 262   bool window_mapped_;
 263
 264   // The bounds of |xwindow_|.
 265   gfx::Rect bounds_in_pixels_;
 266
 267   // Whenever the bounds are set, we keep the previous set of bounds around so
 268   // we can have a better chance of getting the real
 269   // |restored_bounds_in_pixels_|. Window managers tend to send a Configure
 270   // message with the maximized bounds, and then set the window maximized
 271   // property. (We don't rely on this for when we request that the window be
 272   // maximized, only when we detect that some other process has requested that
 273   // we become the maximized window.)
 274   gfx::Rect previous_bounds_in_pixels_;
 275
 276   // The bounds of our window before we were maximized.
 277   gfx::Rect restored_bounds_in_pixels_;
 278
 279   // |xwindow_|'s minimum size.
 280   gfx::Size min_size_in_pixels_;
 281
 282   // |xwindow_|'s maximum size.
 283   gfx::Size max_size_in_pixels_;
 284
 285   // The window manager state bits.
 286   std::set< ::Atom> window_properties_;
 287
 288   // Whether |xwindow_| was requested to be fullscreen via SetFullscreen().
 289   bool is_fullscreen_;
 290
 291   // True if the window should stay on top of most other windows.
 292   bool is_always_on_top_;
 293
 294   // True if the window has title-bar / borders provided by the window manager.
 295   bool use_native_frame_;
 296
 297   // True if a Maximize() call should be done after mapping the window.
 298   bool should_maximize_after_map_;
 299
 300   // Whether we used an ARGB visual for our window.
 301   bool use_argb_visual_;
 302
 303   DesktopDragDropClientAuraX11* drag_drop_client_;
 304
 305   scoped_ptr<ui::EventHandler> x11_non_client_event_filter_;
 306   scoped_ptr<X11DesktopWindowMoveClient> x11_window_move_client_;
 307
 308   // TODO(beng): Consider providing an interface to DesktopNativeWidgetAura
 309   //             instead of providing this route back to Widget.
 310   internal::NativeWidgetDelegate* native_widget_delegate_;
 311
 312   DesktopNativeWidgetAura* desktop_native_widget_aura_;
 313
 314   aura::Window* content_window_;
 315
 316   // We can optionally have a parent which can order us to close, or own
 317   // children who we're responsible for closing when we CloseNow().
 318   DesktopWindowTreeHostX11* window_parent_;
 319   std::set<DesktopWindowTreeHostX11*> window_children_;
 320
 321   ObserverList<DesktopWindowTreeHostObserverX11> observer_list_;
 322
 323   // The window shape if the window is non-rectangular.
 324   ::Region window_shape_;
 325
 326   // Whether |window_shape_| was set via SetShape().
 327   bool custom_window_shape_;
 328
 329   // The size of the window manager provided borders (if any).
 330   gfx::Insets native_window_frame_borders_in_pixels_;
 331
 332   // The current DesktopWindowTreeHostX11 which has capture. Set synchronously
 333   // when capture is requested via SetCapture().
 334   static DesktopWindowTreeHostX11* g_current_capture;
 335
 336   // A list of all (top-level) windows that have been created but not yet
 337   // destroyed.
 338   static std::list<XID>* open_windows_;
 339
 340   base::string16 window_title_;
 341
 342   // Whether we currently are flashing our frame. This feature is implemented
 343   // by setting the urgency hint with the window manager, which can draw
 344   // attention to the window or completely ignore the hint. We stop flashing
 345   // the frame when |xwindow_| gains focus or handles a mouse button event.
 346   bool urgency_hint_set_;
 347
 348   base::CancelableCallback<void()> delayed_resize_task_;
 349
 350   base::WeakPtrFactory<DesktopWindowTreeHostX11> close_widget_factory_;
 351
 352   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostX11);
 353 };
 354
 355 }  // namespace views
 356
 357 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_