ui/views/widget/desktop_aura/desktop_window_tree_host_win.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_WIN_H_
   6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_WIN_H_
   7
   8 #include "ui/aura/window_tree_host.h"
   9 #include "ui/views/views_export.h"
  10 #include "ui/views/widget/desktop_aura/desktop_window_tree_host.h"
  11 #include "ui/views/win/hwnd_message_handler_delegate.h"
  12 #include "ui/wm/public/animation_host.h"
  13
  14 namespace aura {
  15 namespace client {
  16 class DragDropClient;
  17 class FocusClient;
  18 class ScopedTooltipDisabler;
  19 }
  20 }
  21
  22 namespace views {
  23 class DesktopCursorClient;
  24 class DesktopDragDropClientWin;
  25 class HWNDMessageHandler;
  26
  27 namespace corewm {
  28 class TooltipWin;
  29 }
  30
  31 class VIEWS_EXPORT DesktopWindowTreeHostWin
  32     : public DesktopWindowTreeHost,
  33       public aura::client::AnimationHost,
  34       public aura::WindowTreeHost,
  35       public ui::EventSource,
  36       public HWNDMessageHandlerDelegate {
  37  public:
  38   DesktopWindowTreeHostWin(
  39       internal::NativeWidgetDelegate* native_widget_delegate,
  40       DesktopNativeWidgetAura* desktop_native_widget_aura);
  41   virtual ~DesktopWindowTreeHostWin();
  42
  43   // A way of converting an HWND into a content window.
  44   static aura::Window* GetContentWindowForHWND(HWND hwnd);
  45
  46  protected:
  47   // Overridden from DesktopWindowTreeHost:
  48   virtual void Init(aura::Window* content_window,
  49                     const Widget::InitParams& params) override;
  50   virtual void OnNativeWidgetCreated(const Widget::InitParams& params) override;
  51   virtual scoped_ptr<corewm::Tooltip> CreateTooltip() override;
  52   virtual scoped_ptr<aura::client::DragDropClient>
  53       CreateDragDropClient(DesktopNativeCursorManager* cursor_manager) override;
  54   virtual void Close() override;
  55   virtual void CloseNow() override;
  56   virtual aura::WindowTreeHost* AsWindowTreeHost() override;
  57   virtual void ShowWindowWithState(ui::WindowShowState show_state) override;
  58   virtual void ShowMaximizedWithBounds(
  59       const gfx::Rect& restored_bounds) override;
  60   virtual bool IsVisible() const override;
  61   virtual void SetSize(const gfx::Size& size) override;
  62   virtual void StackAtTop() override;
  63   virtual void CenterWindow(const gfx::Size& size) override;
  64   virtual void GetWindowPlacement(
  65       gfx::Rect* bounds,
  66       ui::WindowShowState* show_state) const override;
  67   virtual gfx::Rect GetWindowBoundsInScreen() const override;
  68   virtual gfx::Rect GetClientAreaBoundsInScreen() const override;
  69   virtual gfx::Rect GetRestoredBounds() const override;
  70   virtual gfx::Rect GetWorkAreaBoundsInScreen() const override;
  71   virtual void SetShape(gfx::NativeRegion native_region) override;
  72   virtual void Activate() override;
  73   virtual void Deactivate() override;
  74   virtual bool IsActive() const override;
  75   virtual void Maximize() override;
  76   virtual void Minimize() override;
  77   virtual void Restore() override;
  78   virtual bool IsMaximized() const override;
  79   virtual bool IsMinimized() const override;
  80   virtual bool HasCapture() const override;
  81   virtual void SetAlwaysOnTop(bool always_on_top) override;
  82   virtual bool IsAlwaysOnTop() const override;
  83   virtual void SetVisibleOnAllWorkspaces(bool always_visible) override;
  84   virtual bool SetWindowTitle(const base::string16& title) override;
  85   virtual void ClearNativeFocus() override;
  86   virtual Widget::MoveLoopResult RunMoveLoop(
  87       const gfx::Vector2d& drag_offset,
  88       Widget::MoveLoopSource source,
  89       Widget::MoveLoopEscapeBehavior escape_behavior) override;
  90   virtual void EndMoveLoop() override;
  91   virtual void SetVisibilityChangedAnimationsEnabled(bool value) override;
  92   virtual bool ShouldUseNativeFrame() const override;
  93   virtual bool ShouldWindowContentsBeTransparent() const override;
  94   virtual void FrameTypeChanged() override;
  95   virtual void SetFullscreen(bool fullscreen) override;
  96   virtual bool IsFullscreen() const override;
  97   virtual void SetOpacity(unsigned char opacity) override;
  98   virtual void SetWindowIcons(const gfx::ImageSkia& window_icon,
  99                               const gfx::ImageSkia& app_icon) override;
 100   virtual void InitModalType(ui::ModalType modal_type) override;
 101   virtual void FlashFrame(bool flash_frame) override;
 102   virtual void OnRootViewLayout() override;
 103   virtual void OnNativeWidgetFocus() override;
 104   virtual void OnNativeWidgetBlur() override;
 105   virtual bool IsAnimatingClosed() const override;
 106   virtual bool IsTranslucentWindowOpacitySupported() const override;
 107   virtual void SizeConstraintsChanged() override;
 108
 109   // Overridden from aura::WindowTreeHost:
 110   virtual ui::EventSource* GetEventSource() override;
 111   virtual gfx::AcceleratedWidget GetAcceleratedWidget() override;
 112   virtual void Show() override;
 113   virtual void Hide() override;
 114   virtual gfx::Rect GetBounds() const override;
 115   virtual void SetBounds(const gfx::Rect& bounds) override;
 116   virtual gfx::Point GetLocationOnNativeScreen() const override;
 117   virtual void SetCapture() override;
 118   virtual void ReleaseCapture() override;
 119   virtual void PostNativeEvent(const base::NativeEvent& native_event) override;
 120   virtual void SetCursorNative(gfx::NativeCursor cursor) override;
 121   virtual void OnCursorVisibilityChangedNative(bool show) override;
 122   virtual void MoveCursorToNative(const gfx::Point& location) override;
 123
 124   // Overridden frm ui::EventSource
 125   virtual ui::EventProcessor* GetEventProcessor() override;
 126
 127   // Overridden from aura::client::AnimationHost
 128   virtual void SetHostTransitionOffsets(
 129       const gfx::Vector2d& top_left_delta,
 130       const gfx::Vector2d& bottom_right_delta) override;
 131   virtual void OnWindowHidingAnimationCompleted() override;
 132
 133   // Overridden from HWNDMessageHandlerDelegate:
 134   virtual bool IsWidgetWindow() const override;
 135   virtual bool IsUsingCustomFrame() const override;
 136   virtual void SchedulePaint() override;
 137   virtual void EnableInactiveRendering() override;
 138   virtual bool IsInactiveRenderingDisabled() override;
 139   virtual bool CanResize() const override;
 140   virtual bool CanMaximize() const override;
 141   virtual bool CanMinimize() const override;
 142   virtual bool CanActivate() const override;
 143   virtual bool WidgetSizeIsClientSize() const override;
 144   virtual bool IsModal() const override;
 145   virtual int GetInitialShowState() const override;
 146   virtual bool WillProcessWorkAreaChange() const override;
 147   virtual int GetNonClientComponent(const gfx::Point& point) const override;
 148   virtual void GetWindowMask(const gfx::Size& size, gfx::Path* path) override;
 149   virtual bool GetClientAreaInsets(gfx::Insets* insets) const override;
 150   virtual void GetMinMaxSize(gfx::Size* min_size,
 151                              gfx::Size* max_size) const override;
 152   virtual gfx::Size GetRootViewSize() const override;
 153   virtual void ResetWindowControls() override;
 154   virtual void PaintLayeredWindow(gfx::Canvas* canvas) override;
 155   virtual gfx::NativeViewAccessible GetNativeViewAccessible() override;
 156   virtual bool ShouldHandleSystemCommands() const override;
 157   virtual InputMethod* GetInputMethod() override;
 158   virtual void HandleAppDeactivated() override;
 159   virtual void HandleActivationChanged(bool active) override;
 160   virtual bool HandleAppCommand(short command) override;
 161   virtual void HandleCancelMode() override;
 162   virtual void HandleCaptureLost() override;
 163   virtual void HandleClose() override;
 164   virtual bool HandleCommand(int command) override;
 165   virtual void HandleAccelerator(const ui::Accelerator& accelerator) override;
 166   virtual void HandleCreate() override;
 167   virtual void HandleDestroying() override;
 168   virtual void HandleDestroyed() override;
 169   virtual bool HandleInitialFocus(ui::WindowShowState show_state) override;
 170   virtual void HandleDisplayChange() override;
 171   virtual void HandleBeginWMSizeMove() override;
 172   virtual void HandleEndWMSizeMove() override;
 173   virtual void HandleMove() override;
 174   virtual void HandleWorkAreaChanged() override;
 175   virtual void HandleVisibilityChanging(bool visible) override;
 176   virtual void HandleVisibilityChanged(bool visible) override;
 177   virtual void HandleClientSizeChanged(const gfx::Size& new_size) override;
 178   virtual void HandleFrameChanged() override;
 179   virtual void HandleNativeFocus(HWND last_focused_window) override;
 180   virtual void HandleNativeBlur(HWND focused_window) override;
 181   virtual bool HandleMouseEvent(const ui::MouseEvent& event) override;
 182   virtual bool HandleKeyEvent(const ui::KeyEvent& event) override;
 183   virtual bool HandleUntranslatedKeyEvent(const ui::KeyEvent& event) override;
 184   virtual void HandleTouchEvent(const ui::TouchEvent& event) override;
 185   virtual bool HandleIMEMessage(UINT message,
 186                                 WPARAM w_param,
 187                                 LPARAM l_param,
 188                                 LRESULT* result) override;
 189   virtual void HandleInputLanguageChange(DWORD character_set,
 190                                          HKL input_language_id) override;
 191   virtual bool HandlePaintAccelerated(const gfx::Rect& invalid_rect) override;
 192   virtual void HandlePaint(gfx::Canvas* canvas) override;
 193   virtual bool HandleTooltipNotify(int w_param,
 194                                    NMHDR* l_param,
 195                                    LRESULT* l_result) override;
 196   virtual void HandleMenuLoop(bool in_menu_loop) override;
 197   virtual bool PreHandleMSG(UINT message,
 198                             WPARAM w_param,
 199                             LPARAM l_param,
 200                             LRESULT* result) override;
 201   virtual void PostHandleMSG(UINT message,
 202                              WPARAM w_param,
 203                              LPARAM l_param) override;
 204   virtual bool HandleScrollEvent(const ui::ScrollEvent& event) override;
 205   virtual void HandleWindowSizeChanging() override;
 206
 207   Widget* GetWidget();
 208   const Widget* GetWidget() const;
 209   HWND GetHWND() const;
 210
 211  private:
 212   void SetWindowTransparency();
 213
 214   // Returns true if a modal window is active in the current root window chain.
 215   bool IsModalWindowActive() const;
 216
 217   scoped_ptr<HWNDMessageHandler> message_handler_;
 218   scoped_ptr<aura::client::FocusClient> focus_client_;
 219
 220   // TODO(beng): Consider providing an interface to DesktopNativeWidgetAura
 221   //             instead of providing this route back to Widget.
 222   internal::NativeWidgetDelegate* native_widget_delegate_;
 223
 224   DesktopNativeWidgetAura* desktop_native_widget_aura_;
 225
 226   aura::Window* content_window_;
 227
 228   // Owned by DesktopNativeWidgetAura.
 229   DesktopDragDropClientWin* drag_drop_client_;
 230
 231   // When certain windows are being shown, we augment the window size
 232   // temporarily for animation. The following two members contain the top left
 233   // and bottom right offsets which are used to enlarge the window.
 234   gfx::Vector2d window_expansion_top_left_delta_;
 235   gfx::Vector2d window_expansion_bottom_right_delta_;
 236
 237   // Windows are enlarged to be at least 64x64 pixels, so keep track of the
 238   // extra added here.
 239   gfx::Vector2d window_enlargement_;
 240
 241   // Whether the window close should be converted to a hide, and then actually
 242   // closed on the completion of the hide animation. This is cached because
 243   // the property is set on the contained window which has a shorter lifetime.
 244   bool should_animate_window_close_;
 245
 246   // When Close()d and animations are being applied to this window, the close
 247   // of the window needs to be deferred to when the close animation is
 248   // completed. This variable indicates that a Close was converted to a Hide,
 249   // so that when the Hide is completed the host window should be closed.
 250   bool pending_close_;
 251
 252   // True if the widget is going to have a non_client_view. We cache this value
 253   // rather than asking the Widget for the non_client_view so that we know at
 254   // Init time, before the Widget has created the NonClientView.
 255   bool has_non_client_view_;
 256
 257   // Owned by TooltipController, but we need to forward events to it so we keep
 258   // a reference.
 259   corewm::TooltipWin* tooltip_;
 260
 261   // Visibility of the cursor. On Windows we can have multiple root windows and
 262   // the implementation of ::ShowCursor() is based on a counter, so making this
 263   // member static ensures that ::ShowCursor() is always called exactly once
 264   // whenever the cursor visibility state changes.
 265   static bool is_cursor_visible_;
 266
 267   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 268
 269   // This flag is set to true in cases where we need to force a synchronous
 270   // paint via the compositor. Cases include restoring/resizing/maximizing the
 271   // window. Defaults to false.
 272   bool need_synchronous_paint_;
 273
 274   // Set to true if we are about to enter a sizing loop.
 275   bool in_sizing_loop_;
 276
 277   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostWin);
 278 };
 279
 280 }  // namespace views
 281
 282 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_WIN_H_