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/insets.h" 20 #include "ui/gfx/rect.h" 21 #include "ui/gfx/x/x11_atom_cache.h" 22 #include "ui/views/views_export.h" 23 #include "ui/views/widget/desktop_aura/desktop_window_tree_host.h" 24 25 namespace gfx { 26 class ImageSkia; 27 class ImageSkiaRep; 28 } 29 30 namespace ui { 31 class EventHandler; 32 } 33 34 namespace views { 35 class DesktopDragDropClientAuraX11; 36 class DesktopDispatcherClient; 37 class DesktopWindowTreeHostObserverX11; 38 class X11DesktopWindowMoveClient; 39 class X11ScopedCapture; 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 virtual ~DesktopWindowTreeHostX11(); 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 virtual void Init(aura::Window* content_window, 91 const Widget::InitParams& params) OVERRIDE; 92 virtual void OnNativeWidgetCreated(const Widget::InitParams& params) OVERRIDE; 93 virtual scoped_ptr<corewm::Tooltip> CreateTooltip() OVERRIDE; 94 virtual scoped_ptr<aura::client::DragDropClient> 95 CreateDragDropClient(DesktopNativeCursorManager* cursor_manager) OVERRIDE; 96 virtual void Close() OVERRIDE; 97 virtual void CloseNow() OVERRIDE; 98 virtual aura::WindowTreeHost* AsWindowTreeHost() OVERRIDE; 99 virtual void ShowWindowWithState(ui::WindowShowState show_state) OVERRIDE; 100 virtual void ShowMaximizedWithBounds( 101 const gfx::Rect& restored_bounds) OVERRIDE; 102 virtual bool IsVisible() const OVERRIDE; 103 virtual void SetSize(const gfx::Size& size) OVERRIDE; 104 virtual void StackAtTop() OVERRIDE; 105 virtual void CenterWindow(const gfx::Size& size) OVERRIDE; 106 virtual void GetWindowPlacement( 107 gfx::Rect* bounds, 108 ui::WindowShowState* show_state) const OVERRIDE; 109 virtual gfx::Rect GetWindowBoundsInScreen() const OVERRIDE; 110 virtual gfx::Rect GetClientAreaBoundsInScreen() const OVERRIDE; 111 virtual gfx::Rect GetRestoredBounds() const OVERRIDE; 112 virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE; 113 virtual void SetShape(gfx::NativeRegion native_region) OVERRIDE; 114 virtual void Activate() OVERRIDE; 115 virtual void Deactivate() OVERRIDE; 116 virtual bool IsActive() const OVERRIDE; 117 virtual void Maximize() OVERRIDE; 118 virtual void Minimize() OVERRIDE; 119 virtual void Restore() OVERRIDE; 120 virtual bool IsMaximized() const OVERRIDE; 121 virtual bool IsMinimized() const OVERRIDE; 122 virtual bool HasCapture() const OVERRIDE; 123 virtual void SetAlwaysOnTop(bool always_on_top) OVERRIDE; 124 virtual bool IsAlwaysOnTop() const OVERRIDE; 125 virtual void SetVisibleOnAllWorkspaces(bool always_visible) OVERRIDE; 126 virtual bool SetWindowTitle(const base::string16& title) OVERRIDE; 127 virtual void ClearNativeFocus() OVERRIDE; 128 virtual Widget::MoveLoopResult RunMoveLoop( 129 const gfx::Vector2d& drag_offset, 130 Widget::MoveLoopSource source, 131 Widget::MoveLoopEscapeBehavior escape_behavior) OVERRIDE; 132 virtual void EndMoveLoop() OVERRIDE; 133 virtual void SetVisibilityChangedAnimationsEnabled(bool value) OVERRIDE; 134 virtual bool ShouldUseNativeFrame() const OVERRIDE; 135 virtual bool ShouldWindowContentsBeTransparent() const OVERRIDE; 136 virtual void FrameTypeChanged() OVERRIDE; 137 virtual void SetFullscreen(bool fullscreen) OVERRIDE; 138 virtual bool IsFullscreen() const OVERRIDE; 139 virtual void SetOpacity(unsigned char opacity) OVERRIDE; 140 virtual void SetWindowIcons(const gfx::ImageSkia& window_icon, 141 const gfx::ImageSkia& app_icon) OVERRIDE; 142 virtual void InitModalType(ui::ModalType modal_type) OVERRIDE; 143 virtual void FlashFrame(bool flash_frame) OVERRIDE; 144 virtual void OnRootViewLayout() const OVERRIDE; 145 virtual void OnNativeWidgetFocus() OVERRIDE; 146 virtual void OnNativeWidgetBlur() OVERRIDE; 147 virtual bool IsAnimatingClosed() const OVERRIDE; 148 virtual bool IsTranslucentWindowOpacitySupported() const OVERRIDE; 149 150 // Overridden from aura::WindowTreeHost: 151 virtual ui::EventSource* GetEventSource() OVERRIDE; 152 virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE; 153 virtual void Show() OVERRIDE; 154 virtual void Hide() OVERRIDE; 155 virtual gfx::Rect GetBounds() const OVERRIDE; 156 virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE; 157 virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE; 158 virtual void SetCapture() OVERRIDE; 159 virtual void ReleaseCapture() OVERRIDE; 160 virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE; 161 virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE; 162 virtual void SetCursorNative(gfx::NativeCursor cursor) OVERRIDE; 163 virtual void MoveCursorToNative(const gfx::Point& location) OVERRIDE; 164 virtual void OnCursorVisibilityChangedNative(bool show) OVERRIDE; 165 166 // Overridden frm ui::EventSource 167 virtual ui::EventProcessor* GetEventProcessor() OVERRIDE; 168 169 private: 170 // Initializes our X11 surface to draw on. This method performs all 171 // initialization related to talking to the X11 server. 172 void InitX11Window(const Widget::InitParams& params); 173 174 // Creates an aura::WindowEventDispatcher to contain the |content_window|, 175 // along with all aura client objects that direct behavior. 176 aura::WindowEventDispatcher* InitDispatcher(const Widget::InitParams& params); 177 178 // Called when |xwindow_|'s _NET_WM_STATE property is updated. 179 void OnWMStateUpdated(); 180 181 // Called when |xwindow_|'s _NET_FRAME_EXTENTS property is updated. 182 void OnFrameExtentsUpdated(); 183 184 // Updates |xwindow_|'s _NET_WM_USER_TIME if |xwindow_| is active. 185 void UpdateWMUserTime(const ui::PlatformEvent& event); 186 187 // Sends a message to the x11 window manager, enabling or disabling the 188 // states |state1| and |state2|. 189 void SetWMSpecState(bool enabled, ::Atom state1, ::Atom state2); 190 191 // Checks if the window manager has set a specific state. 192 bool HasWMSpecProperty(const char* property) const; 193 194 // Sets whether the window's borders are provided by the window manager. 195 void SetUseNativeFrame(bool use_native_frame); 196 197 // Called when another DRWHL takes capture, or when capture is released 198 // entirely. 199 void OnCaptureReleased(); 200 201 // Dispatches a mouse event, taking mouse capture into account. If a 202 // different host has capture, we translate the event to its coordinate space 203 // and dispatch it to that host instead. 204 void DispatchMouseEvent(ui::MouseEvent* event); 205 206 // Dispatches a touch event, taking capture into account. If a different host 207 // has capture, then touch-press events are translated to its coordinate space 208 // and dispatched to that host instead. 209 void DispatchTouchEvent(ui::TouchEvent* event); 210 211 // Resets the window region for the current widget bounds if necessary. 212 void ResetWindowRegion(); 213 214 // Serializes an image to the format used by _NET_WM_ICON. 215 void SerializeImageRepresentation(const gfx::ImageSkiaRep& rep, 216 std::vector<unsigned long>* data); 217 218 // Returns an 8888 ARGB visual. Can return NULL if there is no matching 219 // visual on this display. 220 Visual* GetARGBVisual(); 221 222 // See comment for variable open_windows_. 223 static std::list<XID>& open_windows(); 224 225 // Map the window (shows it) taking into account the given |show_state|. 226 void MapWindow(ui::WindowShowState show_state); 227 228 void SetWindowTransparency(); 229 230 // Relayout the widget's client and non-client views. 231 void Relayout(); 232 233 // ui::PlatformEventDispatcher: 234 virtual bool CanDispatchEvent(const ui::PlatformEvent& event) OVERRIDE; 235 virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) OVERRIDE; 236 237 void DelayedResize(const gfx::Size& size); 238 239 base::WeakPtrFactory<DesktopWindowTreeHostX11> close_widget_factory_; 240 241 // X11 things 242 // The display and the native X window hosting the root window. 243 XDisplay* xdisplay_; 244 ::Window xwindow_; 245 246 // The native root window. 247 ::Window x_root_window_; 248 249 ui::X11AtomCache atom_cache_; 250 251 // Is the window mapped to the screen? 252 bool window_mapped_; 253 254 // The bounds of |xwindow_|. 255 gfx::Rect bounds_; 256 257 // Whenever the bounds are set, we keep the previous set of bounds around so 258 // we can have a better chance of getting the real |restored_bounds_|. Window 259 // managers tend to send a Configure message with the maximized bounds, and 260 // then set the window maximized property. (We don't rely on this for when we 261 // request that the window be maximized, only when we detect that some other 262 // process has requested that we become the maximized window.) 263 gfx::Rect previous_bounds_; 264 265 // The bounds of our window before we were maximized. 266 gfx::Rect restored_bounds_; 267 268 // The window manager state bits. 269 std::set< ::Atom> window_properties_; 270 271 // Whether |xwindow_| was requested to be fullscreen via SetFullscreen(). 272 bool is_fullscreen_; 273 274 // True if the window should stay on top of most other windows. 275 bool is_always_on_top_; 276 277 // True if the window has title-bar / borders provided by the window manager. 278 bool use_native_frame_; 279 280 // Whether we used an ARGB visual for our window. 281 bool use_argb_visual_; 282 283 scoped_ptr<DesktopDispatcherClient> dispatcher_client_; 284 285 DesktopDragDropClientAuraX11* drag_drop_client_; 286 287 // Current Aura cursor. 288 gfx::NativeCursor current_cursor_; 289 290 scoped_ptr<ui::EventHandler> x11_non_client_event_filter_; 291 scoped_ptr<X11DesktopWindowMoveClient> x11_window_move_client_; 292 293 // TODO(beng): Consider providing an interface to DesktopNativeWidgetAura 294 // instead of providing this route back to Widget. 295 internal::NativeWidgetDelegate* native_widget_delegate_; 296 297 DesktopNativeWidgetAura* desktop_native_widget_aura_; 298 299 aura::Window* content_window_; 300 301 // We can optionally have a parent which can order us to close, or own 302 // children who we're responsible for closing when we CloseNow(). 303 DesktopWindowTreeHostX11* window_parent_; 304 std::set<DesktopWindowTreeHostX11*> window_children_; 305 306 ObserverList<DesktopWindowTreeHostObserverX11> observer_list_; 307 308 // The window shape if the window is non-rectangular. 309 ::Region window_shape_; 310 311 // Whether |window_shape_| was set via SetShape(). 312 bool custom_window_shape_; 313 314 // The size of the window manager provided borders (if any). 315 gfx::Insets native_window_frame_borders_; 316 317 // The current root window host that has capture. While X11 has something 318 // like Windows SetCapture()/ReleaseCapture(), it is entirely implicit and 319 // there are no notifications when this changes. We need to track this so we 320 // can notify widgets when they have lost capture, which controls a bunch of 321 // things in views like hiding menus. 322 static DesktopWindowTreeHostX11* g_current_capture; 323 324 // A list of all (top-level) windows that have been created but not yet 325 // destroyed. 326 static std::list<XID>* open_windows_; 327 328 scoped_ptr<X11ScopedCapture> x11_capture_; 329 330 base::string16 window_title_; 331 332 // Whether we currently are flashing our frame. This feature is implemented 333 // by setting the urgency hint with the window manager, which can draw 334 // attention to the window or completely ignore the hint. We stop flashing 335 // the frame when |xwindow_| gains focus or handles a mouse button event. 336 bool urgency_hint_set_; 337 338 base::CancelableCallback<void()> delayed_resize_task_; 339 340 DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostX11); 341 }; 342 343 } // namespace views 344 345 #endif // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_ 346