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
 108   // Overridden from aura::WindowTreeHost:
 109   virtual ui::EventSource* GetEventSource() OVERRIDE;
 110   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
 111   virtual void Show() OVERRIDE;
 112   virtual void Hide() OVERRIDE;
 113   virtual gfx::Rect GetBounds() const OVERRIDE;
 114   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
 115   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
 116   virtual void SetCapture() OVERRIDE;
 117   virtual void ReleaseCapture() OVERRIDE;
 118   virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE;
 119   virtual void SetCursorNative(gfx::NativeCursor cursor) OVERRIDE;
 120   virtual void OnCursorVisibilityChangedNative(bool show) OVERRIDE;
 121   virtual void MoveCursorToNative(const gfx::Point& location) OVERRIDE;
 122
 123   // Overridden frm ui::EventSource
 124   virtual ui::EventProcessor* GetEventProcessor() OVERRIDE;
 125
 126   // Overridden from aura::client::AnimationHost
 127   virtual void SetHostTransitionOffsets(
 128       const gfx::Vector2d& top_left_delta,
 129       const gfx::Vector2d& bottom_right_delta) OVERRIDE;
 130   virtual void OnWindowHidingAnimationCompleted() OVERRIDE;
 131
 132   // Overridden from HWNDMessageHandlerDelegate:
 133   virtual bool IsWidgetWindow() const OVERRIDE;
 134   virtual bool IsUsingCustomFrame() const OVERRIDE;
 135   virtual void SchedulePaint() OVERRIDE;
 136   virtual void EnableInactiveRendering() OVERRIDE;
 137   virtual bool IsInactiveRenderingDisabled() OVERRIDE;
 138   virtual bool CanResize() const OVERRIDE;
 139   virtual bool CanMaximize() const OVERRIDE;
 140   virtual bool CanActivate() const OVERRIDE;
 141   virtual bool WidgetSizeIsClientSize() const OVERRIDE;
 142   virtual bool IsModal() const OVERRIDE;
 143   virtual int GetInitialShowState() const OVERRIDE;
 144   virtual bool WillProcessWorkAreaChange() const OVERRIDE;
 145   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE;
 146   virtual void GetWindowMask(const gfx::Size& size, gfx::Path* path) OVERRIDE;
 147   virtual bool GetClientAreaInsets(gfx::Insets* insets) const OVERRIDE;
 148   virtual void GetMinMaxSize(gfx::Size* min_size,
 149                              gfx::Size* max_size) const OVERRIDE;
 150   virtual gfx::Size GetRootViewSize() const OVERRIDE;
 151   virtual void ResetWindowControls() OVERRIDE;
 152   virtual void PaintLayeredWindow(gfx::Canvas* canvas) OVERRIDE;
 153   virtual gfx::NativeViewAccessible GetNativeViewAccessible() OVERRIDE;
 154   virtual bool ShouldHandleSystemCommands() const OVERRIDE;
 155   virtual InputMethod* GetInputMethod() OVERRIDE;
 156   virtual void HandleAppDeactivated() OVERRIDE;
 157   virtual void HandleActivationChanged(bool active) OVERRIDE;
 158   virtual bool HandleAppCommand(short command) OVERRIDE;
 159   virtual void HandleCancelMode() OVERRIDE;
 160   virtual void HandleCaptureLost() OVERRIDE;
 161   virtual void HandleClose() OVERRIDE;
 162   virtual bool HandleCommand(int command) OVERRIDE;
 163   virtual void HandleAccelerator(const ui::Accelerator& accelerator) OVERRIDE;
 164   virtual void HandleCreate() OVERRIDE;
 165   virtual void HandleDestroying() OVERRIDE;
 166   virtual void HandleDestroyed() OVERRIDE;
 167   virtual bool HandleInitialFocus(ui::WindowShowState show_state) OVERRIDE;
 168   virtual void HandleDisplayChange() OVERRIDE;
 169   virtual void HandleBeginWMSizeMove() OVERRIDE;
 170   virtual void HandleEndWMSizeMove() OVERRIDE;
 171   virtual void HandleMove() OVERRIDE;
 172   virtual void HandleWorkAreaChanged() OVERRIDE;
 173   virtual void HandleVisibilityChanging(bool visible) OVERRIDE;
 174   virtual void HandleVisibilityChanged(bool visible) OVERRIDE;
 175   virtual void HandleClientSizeChanged(const gfx::Size& new_size) OVERRIDE;
 176   virtual void HandleFrameChanged() OVERRIDE;
 177   virtual void HandleNativeFocus(HWND last_focused_window) OVERRIDE;
 178   virtual void HandleNativeBlur(HWND focused_window) OVERRIDE;
 179   virtual bool HandleMouseEvent(const ui::MouseEvent& event) OVERRIDE;
 180   virtual bool HandleKeyEvent(const ui::KeyEvent& event) OVERRIDE;
 181   virtual bool HandleUntranslatedKeyEvent(const ui::KeyEvent& event) OVERRIDE;
 182   virtual void HandleTouchEvent(const ui::TouchEvent& event) OVERRIDE;
 183   virtual bool HandleIMEMessage(UINT message,
 184                                 WPARAM w_param,
 185                                 LPARAM l_param,
 186                                 LRESULT* result) OVERRIDE;
 187   virtual void HandleInputLanguageChange(DWORD character_set,
 188                                          HKL input_language_id) OVERRIDE;
 189   virtual bool HandlePaintAccelerated(const gfx::Rect& invalid_rect) OVERRIDE;
 190   virtual void HandlePaint(gfx::Canvas* canvas) OVERRIDE;
 191   virtual bool HandleTooltipNotify(int w_param,
 192                                    NMHDR* l_param,
 193                                    LRESULT* l_result) OVERRIDE;
 194   virtual void HandleMenuLoop(bool in_menu_loop) OVERRIDE;
 195   virtual bool PreHandleMSG(UINT message,
 196                             WPARAM w_param,
 197                             LPARAM l_param,
 198                             LRESULT* result) OVERRIDE;
 199   virtual void PostHandleMSG(UINT message,
 200                              WPARAM w_param,
 201                              LPARAM l_param) OVERRIDE;
 202   virtual bool HandleScrollEvent(const ui::ScrollEvent& event) OVERRIDE;
 203   virtual void HandleWindowSizeChanging() OVERRIDE;
 204
 205   Widget* GetWidget();
 206   const Widget* GetWidget() const;
 207   HWND GetHWND() const;
 208
 209  private:
 210   void SetWindowTransparency();
 211
 212   // Returns true if a modal window is active in the current root window chain.
 213   bool IsModalWindowActive() const;
 214
 215   scoped_ptr<HWNDMessageHandler> message_handler_;
 216   scoped_ptr<aura::client::FocusClient> focus_client_;
 217
 218   // TODO(beng): Consider providing an interface to DesktopNativeWidgetAura
 219   //             instead of providing this route back to Widget.
 220   internal::NativeWidgetDelegate* native_widget_delegate_;
 221
 222   DesktopNativeWidgetAura* desktop_native_widget_aura_;
 223
 224   aura::Window* content_window_;
 225
 226   // Owned by DesktopNativeWidgetAura.
 227   DesktopDragDropClientWin* drag_drop_client_;
 228
 229   // When certain windows are being shown, we augment the window size
 230   // temporarily for animation. The following two members contain the top left
 231   // and bottom right offsets which are used to enlarge the window.
 232   gfx::Vector2d window_expansion_top_left_delta_;
 233   gfx::Vector2d window_expansion_bottom_right_delta_;
 234
 235   // Windows are enlarged to be at least 64x64 pixels, so keep track of the
 236   // extra added here.
 237   gfx::Vector2d window_enlargement_;
 238
 239   // Whether the window close should be converted to a hide, and then actually
 240   // closed on the completion of the hide animation. This is cached because
 241   // the property is set on the contained window which has a shorter lifetime.
 242   bool should_animate_window_close_;
 243
 244   // When Close()d and animations are being applied to this window, the close
 245   // of the window needs to be deferred to when the close animation is
 246   // completed. This variable indicates that a Close was converted to a Hide,
 247   // so that when the Hide is completed the host window should be closed.
 248   bool pending_close_;
 249
 250   // True if the widget is going to have a non_client_view. We cache this value
 251   // rather than asking the Widget for the non_client_view so that we know at
 252   // Init time, before the Widget has created the NonClientView.
 253   bool has_non_client_view_;
 254
 255   // Owned by TooltipController, but we need to forward events to it so we keep
 256   // a reference.
 257   corewm::TooltipWin* tooltip_;
 258
 259   // Visibility of the cursor. On Windows we can have multiple root windows and
 260   // the implementation of ::ShowCursor() is based on a counter, so making this
 261   // member static ensures that ::ShowCursor() is always called exactly once
 262   // whenever the cursor visibility state changes.
 263   static bool is_cursor_visible_;
 264
 265   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 266
 267   // This flag is set to true in cases where we need to force a synchronous
 268   // paint via the compositor. Cases include restoring/resizing/maximizing the
 269   // window. Defaults to false.
 270   bool need_synchronous_paint_;
 271
 272   // Set to true if we are about to enter a sizing loop.
 273   bool in_sizing_loop_;
 274
 275   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostWin);
 276 };
 277
 278 }  // namespace views
 279
 280 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_WIN_H_