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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_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
      6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
      7 
      8 #include "base/memory/weak_ptr.h"
      9 #include "ui/aura/client/activation_change_observer.h"
     10 #include "ui/aura/client/activation_delegate.h"
     11 #include "ui/aura/client/drag_drop_delegate.h"
     12 #include "ui/aura/client/focus_change_observer.h"
     13 #include "ui/aura/root_window_observer.h"
     14 #include "ui/aura/window_delegate.h"
     15 #include "ui/base/cursor/cursor.h"
     16 #include "ui/views/ime/input_method_delegate.h"
     17 #include "ui/views/widget/native_widget_private.h"
     18 
     19 namespace aura {
     20 class RootWindow;
     21 namespace client {
     22 class DragDropClient;
     23 class FocusClient;
     24 class ScreenPositionClient;
     25 class WindowTreeClient;
     26 }
     27 }
     28 
     29 namespace views {
     30 
     31 namespace corewm {
     32 class CompoundEventFilter;
     33 class CursorManager;
     34 class FocusController;
     35 class InputMethodEventFilter;
     36 class ShadowController;
     37 class TooltipController;
     38 class VisibilityController;
     39 class WindowModalityController;
     40 }
     41 
     42 class DesktopCaptureClient;
     43 class DesktopDispatcherClient;
     44 class DesktopEventClient;
     45 class DesktopRootWindowHost;
     46 class DropHelper;
     47 class FocusManagerEventHandler;
     48 class TooltipManagerAura;
     49 class WindowReorderer;
     50 
     51 class VIEWS_EXPORT DesktopNativeWidgetAura
     52     : public internal::NativeWidgetPrivate,
     53       public aura::WindowDelegate,
     54       public aura::client::ActivationDelegate,
     55       public aura::client::ActivationChangeObserver,
     56       public aura::client::FocusChangeObserver,
     57       public views::internal::InputMethodDelegate,
     58       public aura::client::DragDropDelegate,
     59       public aura::RootWindowObserver {
     60  public:
     61   explicit DesktopNativeWidgetAura(internal::NativeWidgetDelegate* delegate);
     62   virtual ~DesktopNativeWidgetAura();
     63 
     64   // Maps from window to DesktopNativeWidgetAura.
     65   static DesktopNativeWidgetAura* ForWindow(aura::Window* window);
     66 
     67   // Called by our DesktopRootWindowHost after it has deleted native resources;
     68   // this is the signal that we should start our shutdown.
     69   virtual void OnHostClosed();
     70 
     71   // Called from ~DesktopRootWindowHost. This takes the RootWindow as by the
     72   // time we get here |root_window_| is NULL.
     73   virtual void OnDesktopRootWindowHostDestroyed(aura::RootWindow* root);
     74 
     75   corewm::InputMethodEventFilter* input_method_event_filter() {
     76     return input_method_event_filter_.get();
     77   }
     78   corewm::CompoundEventFilter* root_window_event_filter() {
     79     return root_window_event_filter_;
     80   }
     81 
     82   // Overridden from NativeWidget:
     83   virtual ui::EventHandler* GetEventHandler() OVERRIDE;
     84 
     85   // Ensures that the correct window is activated/deactivated based on whether
     86   // we are being activated/deactivated.
     87   void HandleActivationChanged(bool active);
     88 
     89  protected:
     90   // Overridden from internal::NativeWidgetPrivate:
     91   virtual void InitNativeWidget(const Widget::InitParams& params) OVERRIDE;
     92   virtual NonClientFrameView* CreateNonClientFrameView() OVERRIDE;
     93   virtual bool ShouldUseNativeFrame() const OVERRIDE;
     94   virtual void FrameTypeChanged() OVERRIDE;
     95   virtual Widget* GetWidget() OVERRIDE;
     96   virtual const Widget* GetWidget() const OVERRIDE;
     97   virtual gfx::NativeView GetNativeView() const OVERRIDE;
     98   virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
     99   virtual Widget* GetTopLevelWidget() OVERRIDE;
    100   virtual const ui::Compositor* GetCompositor() const OVERRIDE;
    101   virtual ui::Compositor* GetCompositor() OVERRIDE;
    102   virtual ui::Layer* GetLayer() OVERRIDE;
    103   virtual void ReorderNativeViews() OVERRIDE;
    104   virtual void ViewRemoved(View* view) OVERRIDE;
    105   virtual void SetNativeWindowProperty(const char* name, void* value) OVERRIDE;
    106   virtual void* GetNativeWindowProperty(const char* name) const OVERRIDE;
    107   virtual TooltipManager* GetTooltipManager() const OVERRIDE;
    108   virtual void SetCapture() OVERRIDE;
    109   virtual void ReleaseCapture() OVERRIDE;
    110   virtual bool HasCapture() const OVERRIDE;
    111   virtual InputMethod* CreateInputMethod() OVERRIDE;
    112   virtual internal::InputMethodDelegate* GetInputMethodDelegate() OVERRIDE;
    113   virtual void CenterWindow(const gfx::Size& size) OVERRIDE;
    114   virtual void GetWindowPlacement(
    115       gfx::Rect* bounds,
    116       ui::WindowShowState* maximized) const OVERRIDE;
    117   virtual bool SetWindowTitle(const string16& title) OVERRIDE;
    118   virtual void SetWindowIcons(const gfx::ImageSkia& window_icon,
    119                               const gfx::ImageSkia& app_icon) OVERRIDE;
    120   virtual void InitModalType(ui::ModalType modal_type) OVERRIDE;
    121   virtual gfx::Rect GetWindowBoundsInScreen() const OVERRIDE;
    122   virtual gfx::Rect GetClientAreaBoundsInScreen() const OVERRIDE;
    123   virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
    124   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
    125   virtual void SetSize(const gfx::Size& size) OVERRIDE;
    126   virtual void StackAbove(gfx::NativeView native_view) OVERRIDE;
    127   virtual void StackAtTop() OVERRIDE;
    128   virtual void StackBelow(gfx::NativeView native_view) OVERRIDE;
    129   virtual void SetShape(gfx::NativeRegion shape) OVERRIDE;
    130   virtual void Close() OVERRIDE;
    131   virtual void CloseNow() OVERRIDE;
    132   virtual void Show() OVERRIDE;
    133   virtual void Hide() OVERRIDE;
    134   virtual void ShowMaximizedWithBounds(
    135       const gfx::Rect& restored_bounds) OVERRIDE;
    136   virtual void ShowWithWindowState(ui::WindowShowState state) OVERRIDE;
    137   virtual bool IsVisible() const OVERRIDE;
    138   virtual void Activate() OVERRIDE;
    139   virtual void Deactivate() OVERRIDE;
    140   virtual bool IsActive() const OVERRIDE;
    141   virtual void SetAlwaysOnTop(bool always_on_top) OVERRIDE;
    142   virtual bool IsAlwaysOnTop() const OVERRIDE;
    143   virtual void Maximize() OVERRIDE;
    144   virtual void Minimize() OVERRIDE;
    145   virtual bool IsMaximized() const OVERRIDE;
    146   virtual bool IsMinimized() const OVERRIDE;
    147   virtual void Restore() OVERRIDE;
    148   virtual void SetFullscreen(bool fullscreen) OVERRIDE;
    149   virtual bool IsFullscreen() const OVERRIDE;
    150   virtual void SetOpacity(unsigned char opacity) OVERRIDE;
    151   virtual void SetUseDragFrame(bool use_drag_frame) OVERRIDE;
    152   virtual void FlashFrame(bool flash_frame) OVERRIDE;
    153   virtual void RunShellDrag(View* view,
    154                             const ui::OSExchangeData& data,
    155                             const gfx::Point& location,
    156                             int operation,
    157                             ui::DragDropTypes::DragEventSource source) OVERRIDE;
    158   virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
    159   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
    160   virtual bool IsMouseEventsEnabled() const OVERRIDE;
    161   virtual void ClearNativeFocus() OVERRIDE;
    162   virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE;
    163   virtual Widget::MoveLoopResult RunMoveLoop(
    164       const gfx::Vector2d& drag_offset,
    165       Widget::MoveLoopSource source,
    166       Widget::MoveLoopEscapeBehavior escape_behavior) OVERRIDE;
    167   virtual void EndMoveLoop() OVERRIDE;
    168   virtual void SetVisibilityChangedAnimationsEnabled(bool value) OVERRIDE;
    169   virtual ui::NativeTheme* GetNativeTheme() const OVERRIDE;
    170   virtual void OnRootViewLayout() const OVERRIDE;
    171 
    172   // Overridden from aura::WindowDelegate:
    173   virtual gfx::Size GetMinimumSize() const OVERRIDE;
    174   virtual gfx::Size GetMaximumSize() const OVERRIDE;
    175   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
    176                                const gfx::Rect& new_bounds) OVERRIDE {}
    177   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE;
    178   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE;
    179   virtual bool ShouldDescendIntoChildForEventHandling(
    180       aura::Window* child,
    181       const gfx::Point& location) OVERRIDE;
    182   virtual bool CanFocus() OVERRIDE;
    183   virtual void OnCaptureLost() OVERRIDE;
    184   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
    185   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
    186   virtual void OnWindowDestroying() OVERRIDE;
    187   virtual void OnWindowDestroyed() OVERRIDE;
    188   virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE;
    189   virtual bool HasHitTestMask() const OVERRIDE;
    190   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE;
    191   virtual void DidRecreateLayer(ui::Layer* old_layer,
    192                                 ui::Layer* new_layer) OVERRIDE;
    193 
    194   // Overridden from ui::EventHandler:
    195   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
    196   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
    197   virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
    198   virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
    199   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
    200 
    201   // Overridden from aura::client::ActivationDelegate:
    202   virtual bool ShouldActivate() const OVERRIDE;
    203 
    204   // Overridden from aura::client::ActivationChangeObserver:
    205   virtual void OnWindowActivated(aura::Window* gained_active,
    206                                  aura::Window* lost_active) OVERRIDE;
    207 
    208   // Overridden from aura::client::FocusChangeObserver:
    209   virtual void OnWindowFocused(aura::Window* gained_focus,
    210                                aura::Window* lost_focus) OVERRIDE;
    211 
    212   // Overridden from views::internal::InputMethodDelegate:
    213   virtual void DispatchKeyEventPostIME(const ui::KeyEvent& key) OVERRIDE;
    214 
    215   // Overridden from aura::client::DragDropDelegate:
    216   virtual void OnDragEntered(const ui::DropTargetEvent& event) OVERRIDE;
    217   virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE;
    218   virtual void OnDragExited() OVERRIDE;
    219   virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE;
    220 
    221   // Overridden from aura::RootWindowObserver:
    222   virtual void OnRootWindowHostCloseRequested(
    223       const aura::RootWindow* root) OVERRIDE;
    224   virtual void OnRootWindowHostResized(const aura::RootWindow* root) OVERRIDE;
    225   virtual void OnRootWindowHostMoved(const aura::RootWindow* root,
    226                                      const gfx::Point& new_origin) OVERRIDE;
    227 
    228  private:
    229   friend class FocusManagerEventHandler;
    230 
    231   // Installs the input method filter.
    232   void InstallInputMethodEventFilter();
    233 
    234   // To save a clear on platforms where the window is never transparent, the
    235   // window is only set as transparent when the glass frame is in use.
    236   void UpdateWindowTransparency();
    237 
    238   // See class documentation for Widget in widget.h for a note about ownership.
    239   Widget::InitParams::Ownership ownership_;
    240 
    241   scoped_ptr<DesktopCaptureClient> capture_client_;
    242 
    243   // The NativeWidget owns the RootWindow. Required because the RootWindow owns
    244   // its RootWindowHost, so DesktopRootWindowHost can't own it.
    245   scoped_ptr<aura::RootWindow> root_window_;
    246 
    247   // The following factory is used for calls to close the NativeWidgetAura
    248   // instance.
    249   base::WeakPtrFactory<DesktopNativeWidgetAura> close_widget_factory_;
    250 
    251   // Can we be made active?
    252   bool can_activate_;
    253 
    254   // Ownership passed to RootWindow on Init.
    255   DesktopRootWindowHost* desktop_root_window_host_;
    256 
    257   // Child of the root, contains |content_window_|.
    258   aura::Window* content_window_container_;
    259 
    260   // Child of |content_window_container_|. This is the return value from
    261   // GetNativeView().
    262   // WARNING: this may be NULL, in particular during shutdown it becomes NULL.
    263   aura::Window* content_window_;
    264 
    265   internal::NativeWidgetDelegate* native_widget_delegate_;
    266 
    267   scoped_ptr<corewm::FocusController> focus_client_;
    268   scoped_ptr<DesktopDispatcherClient> dispatcher_client_;
    269   scoped_ptr<views::corewm::CursorManager> cursor_client_;
    270   scoped_ptr<aura::client::ScreenPositionClient> position_client_;
    271   scoped_ptr<aura::client::DragDropClient> drag_drop_client_;
    272   scoped_ptr<aura::client::WindowTreeClient> window_tree_client_;
    273   scoped_ptr<DesktopEventClient> event_client_;
    274   scoped_ptr<FocusManagerEventHandler> focus_manager_event_handler_;
    275 
    276   // Toplevel event filter which dispatches to other event filters.
    277   corewm::CompoundEventFilter* root_window_event_filter_;
    278 
    279   scoped_ptr<corewm::InputMethodEventFilter> input_method_event_filter_;
    280 
    281   scoped_ptr<DropHelper> drop_helper_;
    282   int last_drop_operation_;
    283 
    284   scoped_ptr<corewm::TooltipController> tooltip_controller_;
    285   scoped_ptr<TooltipManagerAura> tooltip_manager_;
    286 
    287   scoped_ptr<views::corewm::VisibilityController> visibility_controller_;
    288 
    289   scoped_ptr<views::corewm::WindowModalityController>
    290       window_modality_controller_;
    291 
    292   // See comments in OnLostActive().
    293   bool restore_focus_on_activate_;
    294 
    295   gfx::NativeCursor cursor_;
    296 
    297   scoped_ptr<corewm::ShadowController> shadow_controller_;
    298 
    299   // Reorders child windows of |window_| associated with a view based on the
    300   // order of the associated views in the widget's view hierarchy.
    301   scoped_ptr<WindowReorderer> window_reorderer_;
    302 
    303   // See class documentation for Widget in widget.h for a note about type.
    304   Widget::InitParams::Type widget_type_;
    305 
    306   DISALLOW_COPY_AND_ASSIGN(DesktopNativeWidgetAura);
    307 };
    308 
    309 }  // namespace views
    310 
    311 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
    312