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      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_NATIVE_WIDGET_AURA_H_
      6 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_
      7 
      8 #include "base/memory/scoped_vector.h"
      9 #include "base/memory/weak_ptr.h"
     10 #include "ui/aura/client/focus_change_observer.h"
     11 #include "ui/aura/window_delegate.h"
     12 #include "ui/aura/window_observer.h"
     13 #include "ui/base/cursor/cursor.h"
     14 #include "ui/events/event_constants.h"
     15 #include "ui/views/ime/input_method_delegate.h"
     16 #include "ui/views/views_export.h"
     17 #include "ui/views/widget/native_widget_private.h"
     18 #include "ui/wm/public/activation_change_observer.h"
     19 #include "ui/wm/public/activation_delegate.h"
     20 #include "ui/wm/public/drag_drop_delegate.h"
     21 
     22 namespace aura {
     23 class Window;
     24 }
     25 namespace gfx {
     26 class FontList;
     27 }
     28 
     29 namespace views {
     30 
     31 class DropHelper;
     32 class TooltipManagerAura;
     33 class WindowReorderer;
     34 
     35 class VIEWS_EXPORT NativeWidgetAura
     36     : public internal::NativeWidgetPrivate,
     37       public internal::InputMethodDelegate,
     38       public aura::WindowDelegate,
     39       public aura::WindowObserver,
     40       public aura::client::ActivationDelegate,
     41       public aura::client::ActivationChangeObserver,
     42       public aura::client::FocusChangeObserver,
     43       public aura::client::DragDropDelegate {
     44  public:
     45   explicit NativeWidgetAura(internal::NativeWidgetDelegate* delegate);
     46 
     47   // Called internally by NativeWidgetAura and DesktopNativeWidgetAura to
     48   // associate |native_widget| with |window|.
     49   static void RegisterNativeWidgetForWindow(
     50       internal::NativeWidgetPrivate* native_widget,
     51       aura::Window* window);
     52 
     53   // Overridden from internal::NativeWidgetPrivate:
     54   virtual void InitNativeWidget(const Widget::InitParams& params) OVERRIDE;
     55   virtual NonClientFrameView* CreateNonClientFrameView() OVERRIDE;
     56   virtual bool ShouldUseNativeFrame() const OVERRIDE;
     57   virtual bool ShouldWindowContentsBeTransparent() const OVERRIDE;
     58   virtual void FrameTypeChanged() OVERRIDE;
     59   virtual Widget* GetWidget() OVERRIDE;
     60   virtual const Widget* GetWidget() const OVERRIDE;
     61   virtual gfx::NativeView GetNativeView() const OVERRIDE;
     62   virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
     63   virtual Widget* GetTopLevelWidget() OVERRIDE;
     64   virtual const ui::Compositor* GetCompositor() const OVERRIDE;
     65   virtual ui::Compositor* GetCompositor() OVERRIDE;
     66   virtual ui::Layer* GetLayer() OVERRIDE;
     67   virtual void ReorderNativeViews() OVERRIDE;
     68   virtual void ViewRemoved(View* view) OVERRIDE;
     69   virtual void SetNativeWindowProperty(const char* name, void* value) OVERRIDE;
     70   virtual void* GetNativeWindowProperty(const char* name) const OVERRIDE;
     71   virtual TooltipManager* GetTooltipManager() const OVERRIDE;
     72   virtual void SetCapture() OVERRIDE;
     73   virtual void ReleaseCapture() OVERRIDE;
     74   virtual bool HasCapture() const OVERRIDE;
     75   virtual InputMethod* CreateInputMethod() OVERRIDE;
     76   virtual internal::InputMethodDelegate* GetInputMethodDelegate() OVERRIDE;
     77   virtual ui::InputMethod* GetHostInputMethod() OVERRIDE;
     78   virtual void CenterWindow(const gfx::Size& size) OVERRIDE;
     79   virtual void GetWindowPlacement(
     80       gfx::Rect* bounds,
     81       ui::WindowShowState* maximized) const OVERRIDE;
     82   virtual bool SetWindowTitle(const base::string16& title) OVERRIDE;
     83   virtual void SetWindowIcons(const gfx::ImageSkia& window_icon,
     84                               const gfx::ImageSkia& app_icon) OVERRIDE;
     85   virtual void InitModalType(ui::ModalType modal_type) OVERRIDE;
     86   virtual gfx::Rect GetWindowBoundsInScreen() const OVERRIDE;
     87   virtual gfx::Rect GetClientAreaBoundsInScreen() const OVERRIDE;
     88   virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
     89   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
     90   virtual void SetSize(const gfx::Size& size) OVERRIDE;
     91   virtual void StackAbove(gfx::NativeView native_view) OVERRIDE;
     92   virtual void StackAtTop() OVERRIDE;
     93   virtual void StackBelow(gfx::NativeView native_view) OVERRIDE;
     94   virtual void SetShape(gfx::NativeRegion shape) OVERRIDE;
     95   virtual void Close() OVERRIDE;
     96   virtual void CloseNow() OVERRIDE;
     97   virtual void Show() OVERRIDE;
     98   virtual void Hide() OVERRIDE;
     99   virtual void ShowMaximizedWithBounds(
    100       const gfx::Rect& restored_bounds) OVERRIDE;
    101   virtual void ShowWithWindowState(ui::WindowShowState state) OVERRIDE;
    102   virtual bool IsVisible() const OVERRIDE;
    103   virtual void Activate() OVERRIDE;
    104   virtual void Deactivate() OVERRIDE;
    105   virtual bool IsActive() const OVERRIDE;
    106   virtual void SetAlwaysOnTop(bool always_on_top) OVERRIDE;
    107   virtual bool IsAlwaysOnTop() const OVERRIDE;
    108   virtual void SetVisibleOnAllWorkspaces(bool always_visible) OVERRIDE;
    109   virtual void Maximize() OVERRIDE;
    110   virtual void Minimize() OVERRIDE;
    111   virtual bool IsMaximized() const OVERRIDE;
    112   virtual bool IsMinimized() const OVERRIDE;
    113   virtual void Restore() OVERRIDE;
    114   virtual void SetFullscreen(bool fullscreen) OVERRIDE;
    115   virtual bool IsFullscreen() const OVERRIDE;
    116   virtual void SetOpacity(unsigned char opacity) OVERRIDE;
    117   virtual void SetUseDragFrame(bool use_drag_frame) OVERRIDE;
    118   virtual void FlashFrame(bool flash_frame) OVERRIDE;
    119   virtual void RunShellDrag(View* view,
    120                             const ui::OSExchangeData& data,
    121                             const gfx::Point& location,
    122                             int operation,
    123                             ui::DragDropTypes::DragEventSource source) OVERRIDE;
    124   virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
    125   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
    126   virtual bool IsMouseEventsEnabled() const OVERRIDE;
    127   virtual void ClearNativeFocus() OVERRIDE;
    128   virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE;
    129   virtual Widget::MoveLoopResult RunMoveLoop(
    130       const gfx::Vector2d& drag_offset,
    131       Widget::MoveLoopSource source,
    132       Widget::MoveLoopEscapeBehavior escape_behavior) OVERRIDE;
    133   virtual void EndMoveLoop() OVERRIDE;
    134   virtual void SetVisibilityChangedAnimationsEnabled(bool value) OVERRIDE;
    135   virtual ui::NativeTheme* GetNativeTheme() const OVERRIDE;
    136   virtual void OnRootViewLayout() OVERRIDE;
    137   virtual bool IsTranslucentWindowOpacitySupported() const OVERRIDE;
    138   virtual void OnSizeConstraintsChanged() OVERRIDE;
    139   virtual void RepostNativeEvent(gfx::NativeEvent native_event) OVERRIDE;
    140 
    141   // Overridden from views::InputMethodDelegate:
    142   virtual void DispatchKeyEventPostIME(const ui::KeyEvent& key) OVERRIDE;
    143 
    144   // Overridden from aura::WindowDelegate:
    145   virtual gfx::Size GetMinimumSize() const OVERRIDE;
    146   virtual gfx::Size GetMaximumSize() const OVERRIDE;
    147   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
    148                                const gfx::Rect& new_bounds) OVERRIDE;
    149   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE;
    150   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE;
    151   virtual bool ShouldDescendIntoChildForEventHandling(
    152       aura::Window* child,
    153       const gfx::Point& location) OVERRIDE;
    154   virtual bool CanFocus() OVERRIDE;
    155   virtual void OnCaptureLost() OVERRIDE;
    156   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
    157   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
    158   virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
    159   virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE;
    160   virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE;
    161   virtual bool HasHitTestMask() const OVERRIDE;
    162   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE;
    163 
    164   // Overridden from aura::WindowObserver:
    165   virtual void OnWindowPropertyChanged(aura::Window* window,
    166                                        const void* key,
    167                                        intptr_t old) OVERRIDE;
    168 
    169   // Overridden from ui::EventHandler:
    170   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
    171   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
    172   virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
    173   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
    174 
    175   // Overridden from aura::client::ActivationDelegate:
    176   virtual bool ShouldActivate() const OVERRIDE;
    177 
    178   // Overridden from aura::client::ActivationChangeObserver:
    179   virtual void OnWindowActivated(aura::Window* gained_active,
    180                                  aura::Window* lost_active) OVERRIDE;
    181 
    182   // Overridden from aura::client::FocusChangeObserver:
    183   virtual void OnWindowFocused(aura::Window* gained_focus,
    184                                aura::Window* lost_focus) OVERRIDE;
    185 
    186   // Overridden from aura::client::DragDropDelegate:
    187   virtual void OnDragEntered(const ui::DropTargetEvent& event) OVERRIDE;
    188   virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE;
    189   virtual void OnDragExited() OVERRIDE;
    190   virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE;
    191 
    192  protected:
    193   virtual ~NativeWidgetAura();
    194 
    195   internal::NativeWidgetDelegate* delegate() { return delegate_; }
    196 
    197  private:
    198   class ActiveWindowObserver;
    199 
    200   void SetInitialFocus(ui::WindowShowState show_state);
    201 
    202   internal::NativeWidgetDelegate* delegate_;
    203 
    204   // WARNING: set to NULL when destroyed. As the Widget is not necessarily
    205   // destroyed along with |window_| all usage of |window_| should first verify
    206   // non-NULL.
    207   aura::Window* window_;
    208 
    209   // See class documentation for Widget in widget.h for a note about ownership.
    210   Widget::InitParams::Ownership ownership_;
    211 
    212   // Are we in the destructor?
    213   bool destroying_;
    214 
    215   gfx::NativeCursor cursor_;
    216 
    217   // The saved window state for exiting full screen state.
    218   ui::WindowShowState saved_window_state_;
    219 
    220   scoped_ptr<TooltipManagerAura> tooltip_manager_;
    221 
    222   // Reorders child windows of |window_| associated with a view based on the
    223   // order of the associated views in the widget's view hierarchy.
    224   scoped_ptr<WindowReorderer> window_reorderer_;
    225 
    226   scoped_ptr<DropHelper> drop_helper_;
    227   int last_drop_operation_;
    228 
    229   // The following factory is used for calls to close the NativeWidgetAura
    230   // instance.
    231   base::WeakPtrFactory<NativeWidgetAura> close_widget_factory_;
    232 
    233   DISALLOW_COPY_AND_ASSIGN(NativeWidgetAura);
    234 };
    235 
    236 }  // namespace views
    237 
    238 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_
    239