Index: views/widget/native_widget_win.h |
diff --git a/views/widget/native_widget_win.h b/views/widget/native_widget_win.h |
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+// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_ |
+#define VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_ |
+#pragma once |
+ |
+#include <atlbase.h> |
+#include <atlapp.h> |
+#include <atlcrack.h> |
+#include <atlmisc.h> |
+ |
+#include <string> |
+#include <vector> |
+ |
+#include "base/memory/ref_counted.h" |
+#include "base/memory/scoped_ptr.h" |
+#include "base/memory/scoped_vector.h" |
+#include "base/memory/weak_ptr.h" |
+#include "base/message_loop.h" |
+#include "base/win/scoped_comptr.h" |
+#include "base/win/win_util.h" |
+#include "ui/base/win/window_impl.h" |
+#include "ui/gfx/compositor/compositor.h" |
+#include "ui/views/focus/focus_manager.h" |
+#include "ui/views/layout/layout_manager.h" |
+#include "views/widget/native_widget_private.h" |
+ |
+namespace ui { |
+class Compositor; |
+class ViewProp; |
+} |
+ |
+namespace gfx { |
+class CanvasSkia; |
+class Font; |
+class Rect; |
+} |
+ |
+namespace views { |
+ |
+class DropTargetWin; |
+class RootView; |
+class TooltipManagerWin; |
+ |
+// These two messages aren't defined in winuser.h, but they are sent to windows |
+// with captions. They appear to paint the window caption and frame. |
+// Unfortunately if you override the standard non-client rendering as we do |
+// with CustomFrameWindow, sometimes Windows (not deterministically |
+// reproducibly but definitely frequently) will send these messages to the |
+// window and paint the standard caption/title over the top of the custom one. |
+// So we need to handle these messages in CustomFrameWindow to prevent this |
+// from happening. |
+const int WM_NCUAHDRAWCAPTION = 0xAE; |
+const int WM_NCUAHDRAWFRAME = 0xAF; |
+ |
+/////////////////////////////////////////////////////////////////////////////// |
+// |
+// NativeWidgetWin |
+// A Widget for a views hierarchy used to represent anything that can be |
+// contained within an HWND, e.g. a control, a window, etc. Specializations |
+// suitable for specific tasks, e.g. top level window, are derived from this. |
+// |
+// This Widget contains a RootView which owns the hierarchy of views within it. |
+// As long as views are part of this tree, they will be deleted automatically |
+// when the RootView is destroyed. If you remove a view from the tree, you are |
+// then responsible for cleaning up after it. |
+// |
+/////////////////////////////////////////////////////////////////////////////// |
+class VIEWS_EXPORT NativeWidgetWin : public ui::WindowImpl, |
+ public MessageLoopForUI::Observer, |
+ public ui::CompositorDelegate, |
+ public internal::NativeWidgetPrivate { |
+ public: |
+ explicit NativeWidgetWin(internal::NativeWidgetDelegate* delegate); |
+ virtual ~NativeWidgetWin(); |
+ |
+ // Returns true if we are on Windows Vista or greater and composition is |
+ // enabled. |
+ static bool IsAeroGlassEnabled(); |
+ |
+ // Returns the system set window title font. |
+ static gfx::Font GetWindowTitleFont(); |
+ |
+ // Show the window with the specified show command. |
+ void Show(int show_state); |
+ |
+ // Disable Layered Window updates by setting to false. |
+ void set_can_update_layered_window(bool can_update_layered_window) { |
+ can_update_layered_window_ = can_update_layered_window; |
+ } |
+ |
+ // Obtain the view event with the given MSAA child id. Used in |
+ // NativeViewAccessibilityWin::get_accChild to support requests for |
+ // children of windowless controls. May return NULL |
+ // (see ViewHierarchyChanged). |
+ View* GetAccessibilityViewEventAt(int id); |
+ |
+ // Add a view that has recently fired an accessibility event. Returns a MSAA |
+ // child id which is generated by: -(index of view in vector + 1) which |
+ // guarantees a negative child id. This distinguishes the view from |
+ // positive MSAA child id's which are direct leaf children of views that have |
+ // associated hWnd's (e.g. NativeWidgetWin). |
+ int AddAccessibilityViewEvent(View* view); |
+ |
+ // Clear a view that has recently been removed on a hierarchy change. |
+ void ClearAccessibilityViewEvent(View* view); |
+ |
+ // Hides the window if it hasn't already been force-hidden. The force hidden |
+ // count is tracked, so calling multiple times is allowed, you just have to |
+ // be sure to call PopForceHidden the same number of times. |
+ void PushForceHidden(); |
+ |
+ // Decrements the force hidden count, showing the window if we have reached |
+ // the top of the stack. See PushForceHidden. |
+ void PopForceHidden(); |
+ |
+ BOOL IsWindow() const { |
+ return ::IsWindow(GetNativeView()); |
+ } |
+ |
+ BOOL ShowWindow(int command) { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::ShowWindow(GetNativeView(), command); |
+ } |
+ |
+ HWND GetParent() const { |
+ return ::GetParent(GetNativeView()); |
+ } |
+ |
+ LONG GetWindowLong(int index) { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::GetWindowLong(GetNativeView(), index); |
+ } |
+ |
+ BOOL GetWindowRect(RECT* rect) const { |
+ return ::GetWindowRect(GetNativeView(), rect); |
+ } |
+ |
+ LONG SetWindowLong(int index, LONG new_long) { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::SetWindowLong(GetNativeView(), index, new_long); |
+ } |
+ |
+ BOOL SetWindowPos(HWND hwnd_after, int x, int y, int cx, int cy, UINT flags) { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::SetWindowPos(GetNativeView(), hwnd_after, x, y, cx, cy, flags); |
+ } |
+ |
+ BOOL IsZoomed() const { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::IsZoomed(GetNativeView()); |
+ } |
+ |
+ BOOL MoveWindow(int x, int y, int width, int height) { |
+ return MoveWindow(x, y, width, height, TRUE); |
+ } |
+ |
+ BOOL MoveWindow(int x, int y, int width, int height, BOOL repaint) { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::MoveWindow(GetNativeView(), x, y, width, height, repaint); |
+ } |
+ |
+ int SetWindowRgn(HRGN region, BOOL redraw) { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::SetWindowRgn(GetNativeView(), region, redraw); |
+ } |
+ |
+ BOOL GetClientRect(RECT* rect) const { |
+ DCHECK(::IsWindow(GetNativeView())); |
+ return ::GetClientRect(GetNativeView(), rect); |
+ } |
+ |
+ // Overridden from ui::CompositorDelegate: |
+ virtual void ScheduleDraw(); |
+ |
+ // Overridden from internal::NativeWidgetPrivate: |
+ virtual void InitNativeWidget(const Widget::InitParams& params) OVERRIDE; |
+ virtual NonClientFrameView* CreateNonClientFrameView() OVERRIDE; |
+ virtual void UpdateFrameAfterFrameChange() OVERRIDE; |
+ virtual bool ShouldUseNativeFrame() const OVERRIDE; |
+ virtual void FrameTypeChanged() OVERRIDE; |
+ virtual Widget* GetWidget() OVERRIDE; |
+ virtual const Widget* GetWidget() const OVERRIDE; |
+ virtual gfx::NativeView GetNativeView() const OVERRIDE; |
+ virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE; |
+ virtual Widget* GetTopLevelWidget() OVERRIDE; |
+ virtual const ui::Compositor* GetCompositor() const OVERRIDE; |
+ virtual ui::Compositor* GetCompositor() OVERRIDE; |
+ virtual void CalculateOffsetToAncestorWithLayer( |
+ gfx::Point* offset, |
+ ui::Layer** layer_parent) OVERRIDE; |
+ virtual void ReorderLayers() OVERRIDE; |
+ virtual void ViewRemoved(View* view) OVERRIDE; |
+ virtual void SetNativeWindowProperty(const char* name, void* value) OVERRIDE; |
+ virtual void* GetNativeWindowProperty(const char* name) const OVERRIDE; |
+ virtual TooltipManager* GetTooltipManager() const OVERRIDE; |
+ virtual bool IsScreenReaderActive() const OVERRIDE; |
+ virtual void SendNativeAccessibilityEvent( |
+ View* view, |
+ ui::AccessibilityTypes::Event event_type) OVERRIDE; |
+ virtual void SetMouseCapture() OVERRIDE; |
+ virtual void ReleaseMouseCapture() OVERRIDE; |
+ virtual bool HasMouseCapture() const OVERRIDE; |
+ virtual InputMethod* CreateInputMethod() OVERRIDE; |
+ virtual void CenterWindow(const gfx::Size& size) OVERRIDE; |
+ virtual void GetWindowPlacement( |
+ gfx::Rect* bounds, |
+ ui::WindowShowState* show_state) const OVERRIDE; |
+ virtual void SetWindowTitle(const string16& title) OVERRIDE; |
+ virtual void SetWindowIcons(const SkBitmap& window_icon, |
+ const SkBitmap& app_icon) OVERRIDE; |
+ virtual void SetAccessibleName(const string16& name) OVERRIDE; |
+ virtual void SetAccessibleRole(ui::AccessibilityTypes::Role role) OVERRIDE; |
+ virtual void SetAccessibleState(ui::AccessibilityTypes::State state) OVERRIDE; |
+ virtual void BecomeModal() OVERRIDE; |
+ virtual gfx::Rect GetWindowScreenBounds() const OVERRIDE; |
+ virtual gfx::Rect GetClientAreaScreenBounds() const OVERRIDE; |
+ virtual gfx::Rect GetRestoredBounds() const OVERRIDE; |
+ virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE; |
+ virtual void SetSize(const gfx::Size& size) OVERRIDE; |
+ virtual void MoveAbove(gfx::NativeView native_view) OVERRIDE; |
+ virtual void MoveToTop() OVERRIDE; |
+ virtual void SetShape(gfx::NativeRegion shape) OVERRIDE; |
+ virtual void Close() OVERRIDE; |
+ virtual void CloseNow() OVERRIDE; |
+ virtual void EnableClose(bool enable) OVERRIDE; |
+ virtual void Show() OVERRIDE; |
+ virtual void Hide() OVERRIDE; |
+ virtual void ShowMaximizedWithBounds( |
+ const gfx::Rect& restored_bounds) OVERRIDE; |
+ virtual void ShowWithWindowState(ui::WindowShowState show_state) OVERRIDE; |
+ virtual bool IsVisible() const OVERRIDE; |
+ virtual void Activate() OVERRIDE; |
+ virtual void Deactivate() OVERRIDE; |
+ virtual bool IsActive() const OVERRIDE; |
+ virtual void SetAlwaysOnTop(bool always_on_top) OVERRIDE; |
+ virtual void Maximize() OVERRIDE; |
+ virtual void Minimize() OVERRIDE; |
+ virtual bool IsMaximized() const OVERRIDE; |
+ virtual bool IsMinimized() const OVERRIDE; |
+ virtual void Restore() OVERRIDE; |
+ virtual void SetFullscreen(bool fullscreen) OVERRIDE; |
+ virtual bool IsFullscreen() const OVERRIDE; |
+ virtual void SetOpacity(unsigned char opacity) OVERRIDE; |
+ virtual void SetUseDragFrame(bool use_drag_frame) OVERRIDE; |
+ virtual bool IsAccessibleWidget() const OVERRIDE; |
+ virtual void RunShellDrag(View* view, |
+ const ui::OSExchangeData& data, |
+ int operation) OVERRIDE; |
+ virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE; |
+ virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE; |
+ virtual void ClearNativeFocus() OVERRIDE; |
+ virtual void FocusNativeView(gfx::NativeView native_view) OVERRIDE; |
+ virtual bool ConvertPointFromAncestor( |
+ const Widget* ancestor, gfx::Point* point) const OVERRIDE; |
+ virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE; |
+ virtual void SetInactiveRenderingDisabled(bool value) OVERRIDE; |
+ |
+ protected: |
+ // Information saved before going into fullscreen mode, used to restore the |
+ // window afterwards. |
+ struct SavedWindowInfo { |
+ bool maximized; |
+ LONG style; |
+ LONG ex_style; |
+ RECT window_rect; |
+ }; |
+ |
+ // Overridden from MessageLoop::Observer: |
+ virtual base::EventStatus WillProcessEvent( |
+ const base::NativeEvent& event) OVERRIDE; |
+ virtual void DidProcessEvent(const base::NativeEvent& event) OVERRIDE; |
+ |
+ // Overridden from WindowImpl: |
+ virtual HICON GetDefaultWindowIcon() const OVERRIDE; |
+ virtual LRESULT OnWndProc(UINT message, |
+ WPARAM w_param, |
+ LPARAM l_param) OVERRIDE; |
+ |
+ // Message Handlers ---------------------------------------------------------- |
+ |
+ BEGIN_MSG_MAP_EX(NativeWidgetWin) |
+ // Range handlers must go first! |
+ MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange) |
+ MESSAGE_RANGE_HANDLER_EX(WM_NCMOUSEMOVE, WM_NCXBUTTONDBLCLK, OnMouseRange) |
+ |
+ // Reflected message handler |
+ MESSAGE_HANDLER_EX(base::win::kReflectedMessage, OnReflectedMessage) |
+ |
+ // CustomFrameWindow hacks |
+ MESSAGE_HANDLER_EX(WM_NCUAHDRAWCAPTION, OnNCUAHDrawCaption) |
+ MESSAGE_HANDLER_EX(WM_NCUAHDRAWFRAME, OnNCUAHDrawFrame) |
+ |
+ // Vista and newer |
+ MESSAGE_HANDLER_EX(WM_DWMCOMPOSITIONCHANGED, OnDwmCompositionChanged) |
+ |
+ // Non-atlcrack.h handlers |
+ MESSAGE_HANDLER_EX(WM_GETOBJECT, OnGetObject) |
+ |
+ // Mouse events. |
+ MESSAGE_HANDLER_EX(WM_MOUSEACTIVATE, OnMouseActivate) |
+ MESSAGE_HANDLER_EX(WM_MOUSELEAVE, OnMouseRange) |
+ MESSAGE_HANDLER_EX(WM_NCMOUSELEAVE, OnMouseRange) |
+ MESSAGE_HANDLER_EX(WM_SETCURSOR, OnSetCursor); |
+ |
+ // Key events. |
+ MESSAGE_HANDLER_EX(WM_KEYDOWN, OnKeyEvent) |
+ MESSAGE_HANDLER_EX(WM_KEYUP, OnKeyEvent) |
+ MESSAGE_HANDLER_EX(WM_SYSKEYDOWN, OnKeyEvent) |
+ MESSAGE_HANDLER_EX(WM_SYSKEYUP, OnKeyEvent) |
+ |
+ // IME Events. |
+ MESSAGE_HANDLER_EX(WM_IME_SETCONTEXT, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_IME_STARTCOMPOSITION, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_IME_COMPOSITION, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_IME_ENDCOMPOSITION, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_IME_REQUEST, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_CHAR, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_SYSCHAR, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_DEADCHAR, OnImeMessages) |
+ MESSAGE_HANDLER_EX(WM_SYSDEADCHAR, OnImeMessages) |
+ |
+ // This list is in _ALPHABETICAL_ order! OR I WILL HURT YOU. |
+ MSG_WM_ACTIVATE(OnActivate) |
+ MSG_WM_ACTIVATEAPP(OnActivateApp) |
+ MSG_WM_APPCOMMAND(OnAppCommand) |
+ MSG_WM_CANCELMODE(OnCancelMode) |
+ MSG_WM_CAPTURECHANGED(OnCaptureChanged) |
+ MSG_WM_CLOSE(OnClose) |
+ MSG_WM_COMMAND(OnCommand) |
+ MSG_WM_CREATE(OnCreate) |
+ MSG_WM_DESTROY(OnDestroy) |
+ MSG_WM_DISPLAYCHANGE(OnDisplayChange) |
+ MSG_WM_ERASEBKGND(OnEraseBkgnd) |
+ MSG_WM_ENDSESSION(OnEndSession) |
+ MSG_WM_ENTERSIZEMOVE(OnEnterSizeMove) |
+ MSG_WM_EXITMENULOOP(OnExitMenuLoop) |
+ MSG_WM_EXITSIZEMOVE(OnExitSizeMove) |
+ MSG_WM_GETMINMAXINFO(OnGetMinMaxInfo) |
+ MSG_WM_HSCROLL(OnHScroll) |
+ MSG_WM_INITMENU(OnInitMenu) |
+ MSG_WM_INITMENUPOPUP(OnInitMenuPopup) |
+ MSG_WM_INPUTLANGCHANGE(OnInputLangChange) |
+ MSG_WM_KILLFOCUS(OnKillFocus) |
+ MSG_WM_MOVE(OnMove) |
+ MSG_WM_MOVING(OnMoving) |
+ MSG_WM_NCACTIVATE(OnNCActivate) |
+ MSG_WM_NCCALCSIZE(OnNCCalcSize) |
+ MSG_WM_NCHITTEST(OnNCHitTest) |
+ MSG_WM_NCPAINT(OnNCPaint) |
+ MSG_WM_NOTIFY(OnNotify) |
+ MSG_WM_PAINT(OnPaint) |
+ MSG_WM_POWERBROADCAST(OnPowerBroadcast) |
+ MSG_WM_SETFOCUS(OnSetFocus) |
+ MSG_WM_SETICON(OnSetIcon) |
+ MSG_WM_SETTEXT(OnSetText) |
+ MSG_WM_SETTINGCHANGE(OnSettingChange) |
+ MSG_WM_SIZE(OnSize) |
+ MSG_WM_SYSCOMMAND(OnSysCommand) |
+ MSG_WM_THEMECHANGED(OnThemeChanged) |
+ MSG_WM_VSCROLL(OnVScroll) |
+ MSG_WM_WINDOWPOSCHANGING(OnWindowPosChanging) |
+ MSG_WM_WINDOWPOSCHANGED(OnWindowPosChanged) |
+ END_MSG_MAP() |
+ |
+ // These are all virtual so that specialized Widgets can modify or augment |
+ // processing. |
+ // This list is in _ALPHABETICAL_ order! |
+ // Note: in the base class these functions must do nothing but convert point |
+ // coordinates to client coordinates (if necessary) and forward the |
+ // handling to the appropriate Process* function. This is so that |
+ // subclasses can easily override these methods to do different things |
+ // and have a convenient function to call to get the default behavior. |
+ virtual void OnActivate(UINT action, BOOL minimized, HWND window); |
+ virtual void OnActivateApp(BOOL active, DWORD thread_id); |
+ virtual LRESULT OnAppCommand(HWND window, short app_command, WORD device, |
+ int keystate); |
+ virtual void OnCancelMode(); |
+ virtual void OnCaptureChanged(HWND hwnd); |
+ virtual void OnClose(); |
+ virtual void OnCommand(UINT notification_code, int command_id, HWND window); |
+ virtual LRESULT OnCreate(CREATESTRUCT* create_struct); |
+ // WARNING: If you override this be sure and invoke super, otherwise we'll |
+ // leak a few things. |
+ virtual void OnDestroy(); |
+ virtual void OnDisplayChange(UINT bits_per_pixel, CSize screen_size); |
+ virtual LRESULT OnDwmCompositionChanged(UINT msg, |
+ WPARAM w_param, |
+ LPARAM l_param); |
+ virtual void OnEndSession(BOOL ending, UINT logoff); |
+ virtual void OnEnterSizeMove(); |
+ virtual LRESULT OnEraseBkgnd(HDC dc); |
+ virtual void OnExitMenuLoop(BOOL is_track_popup_menu); |
+ virtual void OnExitSizeMove(); |
+ virtual LRESULT OnGetObject(UINT uMsg, WPARAM w_param, LPARAM l_param); |
+ virtual void OnGetMinMaxInfo(MINMAXINFO* minmax_info); |
+ virtual void OnHScroll(int scroll_type, short position, HWND scrollbar); |
+ virtual LRESULT OnImeMessages(UINT message, WPARAM w_param, LPARAM l_param); |
+ virtual void OnInitMenu(HMENU menu); |
+ virtual void OnInitMenuPopup(HMENU menu, UINT position, BOOL is_system_menu); |
+ virtual void OnInputLangChange(DWORD character_set, HKL input_language_id); |
+ virtual LRESULT OnKeyEvent(UINT message, WPARAM w_param, LPARAM l_param); |
+ virtual void OnKillFocus(HWND focused_window); |
+ virtual LRESULT OnMouseActivate(UINT message, WPARAM w_param, LPARAM l_param); |
+ virtual LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param); |
+ virtual void OnMove(const CPoint& point); |
+ virtual void OnMoving(UINT param, LPRECT new_bounds); |
+ virtual LRESULT OnNCActivate(BOOL active); |
+ virtual LRESULT OnNCCalcSize(BOOL w_param, LPARAM l_param); |
+ virtual LRESULT OnNCHitTest(const CPoint& pt); |
+ virtual void OnNCPaint(HRGN rgn); |
+ virtual LRESULT OnNCUAHDrawCaption(UINT msg, |
+ WPARAM w_param, |
+ LPARAM l_param); |
+ virtual LRESULT OnNCUAHDrawFrame(UINT msg, WPARAM w_param, LPARAM l_param); |
+ virtual LRESULT OnNotify(int w_param, NMHDR* l_param); |
+ virtual void OnPaint(HDC dc); |
+ virtual LRESULT OnPowerBroadcast(DWORD power_event, DWORD data); |
+ virtual LRESULT OnReflectedMessage(UINT msg, WPARAM w_param, LPARAM l_param); |
+ virtual LRESULT OnSetCursor(UINT message, WPARAM w_param, LPARAM l_param); |
+ virtual void OnSetFocus(HWND focused_window); |
+ virtual LRESULT OnSetIcon(UINT size_type, HICON new_icon); |
+ virtual LRESULT OnSetText(const wchar_t* text); |
+ virtual void OnSettingChange(UINT flags, const wchar_t* section); |
+ virtual void OnSize(UINT param, const CSize& size); |
+ virtual void OnSysCommand(UINT notification_code, CPoint click); |
+ virtual void OnThemeChanged(); |
+ virtual void OnVScroll(int scroll_type, short position, HWND scrollbar); |
+ virtual void OnWindowPosChanging(WINDOWPOS* window_pos); |
+ virtual void OnWindowPosChanged(WINDOWPOS* window_pos); |
+ |
+ // Deletes this window as it is destroyed, override to provide different |
+ // behavior. |
+ virtual void OnFinalMessage(HWND window); |
+ |
+ // Retrieve the show state of the window. This is one of the SW_SHOW* flags |
+ // passed into Windows' ShowWindow method. For normal windows this defaults |
+ // to SW_SHOWNORMAL, however windows (e.g. the main window) can override this |
+ // method to provide different values (e.g. retrieve the user's specified |
+ // show state from the shortcut starutp info). |
+ virtual int GetShowState() const; |
+ |
+ // Returns the insets of the client area relative to the non-client area of |
+ // the window. Override this function instead of OnNCCalcSize, which is |
+ // crazily complicated. |
+ virtual gfx::Insets GetClientAreaInsets() const; |
+ |
+ // Start tracking all mouse events so that this window gets sent mouse leave |
+ // messages too. |
+ void TrackMouseEvents(DWORD mouse_tracking_flags); |
+ |
+ // Called when a MSAA screen reader client is detected. |
+ virtual void OnScreenReaderDetected(); |
+ |
+ // Executes the specified SC_command. |
+ void ExecuteSystemMenuCommand(int command); |
+ |
+ // The TooltipManager. This is NULL if there is a problem creating the |
+ // underlying tooltip window. |
+ // WARNING: RootView's destructor calls into the TooltipManager. As such, this |
+ // must be destroyed AFTER root_view_. |
+ scoped_ptr<TooltipManagerWin> tooltip_manager_; |
+ |
+ scoped_refptr<DropTargetWin> drop_target_; |
+ |
+ const gfx::Rect& invalid_rect() const { return invalid_rect_; } |
+ |
+ // Saved window information from before entering fullscreen mode. |
+ // TODO(beng): move to private once GetRestoredBounds() moves onto Widget. |
+ SavedWindowInfo saved_window_info_; |
+ |
+ private: |
+ typedef ScopedVector<ui::ViewProp> ViewProps; |
+ |
+ // Called after the WM_ACTIVATE message has been processed by the default |
+ // windows procedure. |
+ static void PostProcessActivateMessage(NativeWidgetWin* widget, |
+ int activation_state); |
+ |
+ void SetInitParams(const Widget::InitParams& params); |
+ |
+ // Synchronously paints the invalid contents of the Widget. |
+ void RedrawInvalidRect(); |
+ |
+ // Synchronously updates the invalid contents of the Widget. Valid for |
+ // layered windows only. |
+ void RedrawLayeredWindowContents(); |
+ |
+ // Lock or unlock the window from being able to redraw itself in response to |
+ // updates to its invalid region. |
+ class ScopedRedrawLock; |
+ void LockUpdates(); |
+ void UnlockUpdates(); |
+ |
+ // Determines whether the delegate expects the client size or the window size. |
+ bool WidgetSizeIsClientSize() const; |
+ |
+ // Responds to the client area changing size, either at window creation time |
+ // or subsequently. |
+ void ClientAreaSizeChanged(); |
+ |
+ // Resets the window region for the current widget bounds if necessary. |
+ // If |force| is true, the window region is reset to NULL even for native |
+ // frame windows. |
+ void ResetWindowRegion(bool force); |
+ |
+ // Calls DefWindowProc, safely wrapping the call in a ScopedRedrawLock to |
+ // prevent frame flicker. DefWindowProc handling can otherwise render the |
+ // classic-look window title bar directly. |
+ LRESULT DefWindowProcWithRedrawLock(UINT message, |
+ WPARAM w_param, |
+ LPARAM l_param); |
+ |
+ // Stops ignoring SetWindowPos() requests (see below). |
+ void StopIgnoringPosChanges() { ignore_window_pos_changes_ = false; } |
+ |
+ void RestoreEnabledIfNecessary(); |
+ |
+ void SetInitialFocus(); |
+ |
+ // Overridden from internal::InputMethodDelegate |
+ virtual void DispatchKeyEventPostIME(const KeyEvent& key) OVERRIDE; |
+ |
+ // A delegate implementation that handles events received here. |
+ // See class documentation for Widget in widget.h for a note about ownership. |
+ internal::NativeWidgetDelegate* delegate_; |
+ |
+ // The following factory is used for calls to close the NativeWidgetWin |
+ // instance. |
+ base::WeakPtrFactory<NativeWidgetWin> close_widget_factory_; |
+ |
+ // The flags currently being used with TrackMouseEvent to track mouse |
+ // messages. 0 if there is no active tracking. The value of this member is |
+ // used when tracking is canceled. |
+ DWORD active_mouse_tracking_flags_; |
+ |
+ // Should we keep an off-screen buffer? This is false by default, set to true |
+ // when WS_EX_LAYERED is specified before the native window is created. |
+ // |
+ // NOTE: this is intended to be used with a layered window (a window with an |
+ // extended window style of WS_EX_LAYERED). If you are using a layered window |
+ // and NOT changing the layered alpha or anything else, then leave this value |
+ // alone. OTOH if you are invoking SetLayeredWindowAttributes then you'll |
+ // most likely want to set this to false, or after changing the alpha toggle |
+ // the extended style bit to false than back to true. See MSDN for more |
+ // details. |
+ bool use_layered_buffer_; |
+ |
+ // The default alpha to be applied to the layered window. |
+ BYTE layered_alpha_; |
+ |
+ // A canvas that contains the window contents in the case of a layered |
+ // window. |
+ scoped_ptr<gfx::CanvasSkia> layered_window_contents_; |
+ |
+ // We must track the invalid rect ourselves, for two reasons: |
+ // For layered windows, Windows will not do this properly with |
+ // InvalidateRect()/GetUpdateRect(). (In fact, it'll return misleading |
+ // information from GetUpdateRect()). |
+ // We also need to keep track of the invalid rectangle for the RootView should |
+ // we need to paint the non-client area. The data supplied to WM_NCPAINT seems |
+ // to be insufficient. |
+ gfx::Rect invalid_rect_; |
+ |
+ // A factory that allows us to schedule a redraw for layered windows. |
+ base::WeakPtrFactory<NativeWidgetWin> paint_layered_window_factory_; |
+ |
+ // See class documentation for Widget in widget.h for a note about ownership. |
+ Widget::InitParams::Ownership ownership_; |
+ |
+ // True if we are allowed to update the layered window from the DIB backing |
+ // store if necessary. |
+ bool can_update_layered_window_; |
+ |
+ // Whether the focus should be restored next time we get enabled. Needed to |
+ // restore focus correctly when Windows modal dialogs are displayed. |
+ bool restore_focus_when_enabled_; |
+ |
+ // Instance of accessibility information and handling for MSAA root |
+ base::win::ScopedComPtr<IAccessible> accessibility_root_; |
+ |
+ // Value determines whether the Widget is customized for accessibility. |
+ static bool screen_reader_active_; |
+ |
+ // The maximum number of view events in our vector below. |
+ static const int kMaxAccessibilityViewEvents = 20; |
+ |
+ // A vector used to access views for which we have sent notifications to |
+ // accessibility clients. It is used as a circular queue. |
+ std::vector<View*> accessibility_view_events_; |
+ |
+ // The current position of the view events vector. When incrementing, |
+ // we always mod this value with the max view events above . |
+ int accessibility_view_events_index_; |
+ |
+ // The last cursor that was active before the current one was selected. Saved |
+ // so that we can restore it. |
+ gfx::NativeCursor previous_cursor_; |
+ |
+ ViewProps props_; |
+ |
+ // True if we're in fullscreen mode. |
+ bool fullscreen_; |
+ |
+ // If this is greater than zero, we should prevent attempts to make the window |
+ // visible when we handle WM_WINDOWPOSCHANGING. Some calls like |
+ // ShowWindow(SW_RESTORE) make the window visible in addition to restoring it, |
+ // when all we want to do is restore it. |
+ int force_hidden_count_; |
+ |
+ // The window styles before we modified them for the drag frame appearance. |
+ DWORD drag_frame_saved_window_style_; |
+ DWORD drag_frame_saved_window_ex_style_; |
+ |
+ // Represents the number of ScopedRedrawLocks active against this widget. |
+ // If this is greater than zero, the widget should be locked against updates. |
+ int lock_updates_count_; |
+ |
+ // The window styles of the window before updates were locked. |
+ DWORD saved_window_style_; |
+ |
+ // When true, this flag makes us discard incoming SetWindowPos() requests that |
+ // only change our position/size. (We still allow changes to Z-order, |
+ // activation, etc.) |
+ bool ignore_window_pos_changes_; |
+ |
+ // The following factory is used to ignore SetWindowPos() calls for short time |
+ // periods. |
+ base::WeakPtrFactory<NativeWidgetWin> ignore_pos_changes_factory_; |
+ |
+ // The last-seen monitor containing us, and its rect and work area. These are |
+ // used to catch updates to the rect and work area and react accordingly. |
+ HMONITOR last_monitor_; |
+ gfx::Rect last_monitor_rect_, last_work_area_; |
+ |
+ // Set to true when the user presses the right mouse button on the caption |
+ // area. We need this so we can correctly show the context menu on mouse-up. |
+ bool is_right_mouse_pressed_on_caption_; |
+ |
+ // Whether all ancestors have been enabled. This is only used if is_modal_ is |
+ // true. |
+ bool restored_enabled_; |
+ |
+ // The compositor for accelerated drawing. |
+ scoped_refptr<ui::Compositor> compositor_; |
+ |
+ // This flag can be initialized and checked after certain operations (such as |
+ // DefWindowProc) to avoid stack-controlled NativeWidgetWin operations (such |
+ // as unlocking the Window with a ScopedRedrawLock) after Widget destruction. |
+ bool* destroyed_; |
+ |
+ // True if the widget is going to have a non_client_view. We cache this value |
+ // rather than asking the Widget for the non_client_view so that we know at |
+ // Init time, before the Widget has created the NonClientView. |
+ bool has_non_client_view_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin); |
+}; |
+ |
+} // namespace views |
+ |
+#endif // VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_ |