зеркало из https://github.com/mozilla/gecko-dev.git
468 строки
18 KiB
C++
468 строки
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __nsWindow_h__
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#define __nsWindow_h__
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#include "mozilla/ipc/SharedMemorySysV.h"
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#include "nsAutoPtr.h"
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#include "mozcontainer.h"
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#include "nsWeakReference.h"
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#include "nsIDragService.h"
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#include "nsITimer.h"
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#include "nsGkAtoms.h"
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#include "gfxASurface.h"
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#include "nsBaseWidget.h"
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#include "nsGUIEvent.h"
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#include <gdk/gdk.h>
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#include <gtk/gtk.h>
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#ifdef MOZ_X11
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#include <gdk/gdkx.h>
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#endif /* MOZ_X11 */
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#ifdef ACCESSIBILITY
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#include "mozilla/a11y/Accessible.h"
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#endif
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#include "nsGtkIMModule.h"
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#undef LOG
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#ifdef MOZ_LOGGING
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// make sure that logging is enabled before including prlog.h
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#define FORCE_PR_LOG
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#include "prlog.h"
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#include "nsTArray.h"
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extern PRLogModuleInfo *gWidgetLog;
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extern PRLogModuleInfo *gWidgetFocusLog;
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extern PRLogModuleInfo *gWidgetDragLog;
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extern PRLogModuleInfo *gWidgetDrawLog;
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#define LOG(args) PR_LOG(gWidgetLog, 4, args)
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#define LOGFOCUS(args) PR_LOG(gWidgetFocusLog, 4, args)
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#define LOGDRAG(args) PR_LOG(gWidgetDragLog, 4, args)
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#define LOGDRAW(args) PR_LOG(gWidgetDrawLog, 4, args)
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#else
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#define LOG(args)
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#define LOGFOCUS(args)
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#define LOGDRAG(args)
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#define LOGDRAW(args)
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#endif /* MOZ_LOGGING */
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class nsDragService;
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#if defined(MOZ_X11) && defined(MOZ_HAVE_SHAREDMEMORYSYSV)
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# define MOZ_HAVE_SHMIMAGE
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class nsShmImage;
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#endif
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class nsWindow : public nsBaseWidget, public nsSupportsWeakReference
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{
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public:
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nsWindow();
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virtual ~nsWindow();
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static void ReleaseGlobals();
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NS_DECL_ISUPPORTS_INHERITED
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void CommonCreate(nsIWidget *aParent, bool aListenForResizes);
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virtual nsresult DispatchEvent(nsGUIEvent *aEvent, nsEventStatus &aStatus);
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// called when we are destroyed
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void OnDestroy(void);
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// called to check and see if a widget's dimensions are sane
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bool AreBoundsSane(void);
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// nsIWidget
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NS_IMETHOD Create(nsIWidget *aParent,
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nsNativeWidget aNativeParent,
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const nsIntRect &aRect,
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nsDeviceContext *aContext,
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nsWidgetInitData *aInitData);
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NS_IMETHOD Destroy(void);
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virtual nsIWidget *GetParent();
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virtual float GetDPI();
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virtual nsresult SetParent(nsIWidget* aNewParent);
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NS_IMETHOD SetModal(bool aModal);
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virtual bool IsVisible() const;
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NS_IMETHOD ConstrainPosition(bool aAllowSlop,
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int32_t *aX,
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int32_t *aY);
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virtual void SetSizeConstraints(const SizeConstraints& aConstraints);
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NS_IMETHOD Move(double aX,
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double aY);
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NS_IMETHOD Show (bool aState);
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NS_IMETHOD Resize (double aWidth,
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double aHeight,
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bool aRepaint);
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NS_IMETHOD Resize (double aX,
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double aY,
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double aWidth,
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double aHeight,
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bool aRepaint);
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virtual bool IsEnabled() const;
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NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
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nsIWidget *aWidget,
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bool aActivate);
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NS_IMETHOD SetZIndex(int32_t aZIndex);
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NS_IMETHOD SetSizeMode(int32_t aMode);
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NS_IMETHOD Enable(bool aState);
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NS_IMETHOD SetFocus(bool aRaise = false);
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NS_IMETHOD GetScreenBounds(nsIntRect &aRect);
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NS_IMETHOD GetClientBounds(nsIntRect &aRect);
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virtual nsIntPoint GetClientOffset();
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NS_IMETHOD SetForegroundColor(const nscolor &aColor);
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NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
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NS_IMETHOD SetCursor(nsCursor aCursor);
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NS_IMETHOD SetCursor(imgIContainer* aCursor,
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uint32_t aHotspotX, uint32_t aHotspotY);
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NS_IMETHOD Invalidate(const nsIntRect &aRect);
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virtual void* GetNativeData(uint32_t aDataType);
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NS_IMETHOD SetTitle(const nsAString& aTitle);
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NS_IMETHOD SetIcon(const nsAString& aIconSpec);
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NS_IMETHOD SetWindowClass(const nsAString& xulWinType);
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virtual nsIntPoint WidgetToScreenOffset();
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NS_IMETHOD EnableDragDrop(bool aEnable);
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NS_IMETHOD CaptureMouse(bool aCapture);
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NS_IMETHOD CaptureRollupEvents(nsIRollupListener *aListener,
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bool aDoCapture);
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NS_IMETHOD GetAttention(int32_t aCycleCount);
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virtual bool HasPendingInputEvent();
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NS_IMETHOD MakeFullScreen(bool aFullScreen);
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NS_IMETHOD HideWindowChrome(bool aShouldHide);
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/**
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* GetLastUserInputTime returns a timestamp for the most recent user input
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* event. This is intended for pointer grab requests (including drags).
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*/
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static guint32 GetLastUserInputTime();
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// utility method, -1 if no change should be made, otherwise returns a
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// value that can be passed to gdk_window_set_decorations
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gint ConvertBorderStyles(nsBorderStyle aStyle);
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// event callbacks
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#if defined(MOZ_WIDGET_GTK2)
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gboolean OnExposeEvent(GdkEventExpose *aEvent);
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#else
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gboolean OnExposeEvent(cairo_t *cr);
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#endif
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gboolean OnConfigureEvent(GtkWidget *aWidget,
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GdkEventConfigure *aEvent);
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void OnContainerUnrealize();
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void OnSizeAllocate(GtkAllocation *aAllocation);
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void OnDeleteEvent();
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void OnEnterNotifyEvent(GdkEventCrossing *aEvent);
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void OnLeaveNotifyEvent(GdkEventCrossing *aEvent);
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void OnMotionNotifyEvent(GdkEventMotion *aEvent);
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void OnButtonPressEvent(GdkEventButton *aEvent);
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void OnButtonReleaseEvent(GdkEventButton *aEvent);
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void OnContainerFocusInEvent(GdkEventFocus *aEvent);
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void OnContainerFocusOutEvent(GdkEventFocus *aEvent);
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gboolean OnKeyPressEvent(GdkEventKey *aEvent);
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gboolean OnKeyReleaseEvent(GdkEventKey *aEvent);
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void OnScrollEvent(GdkEventScroll *aEvent);
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void OnVisibilityNotifyEvent(GdkEventVisibility *aEvent);
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void OnWindowStateEvent(GtkWidget *aWidget,
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GdkEventWindowState *aEvent);
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void OnDragDataReceivedEvent(GtkWidget *aWidget,
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GdkDragContext *aDragContext,
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gint aX,
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gint aY,
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GtkSelectionData*aSelectionData,
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guint aInfo,
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guint aTime,
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gpointer aData);
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#if defined(MOZ_WIDGET_GTK2)
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mozilla::TemporaryRef<mozilla::gfx::DrawTarget> StartRemoteDrawing() MOZ_OVERRIDE;
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#endif
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private:
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void NativeResize(int32_t aWidth,
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int32_t aHeight,
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bool aRepaint);
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void NativeResize(int32_t aX,
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int32_t aY,
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int32_t aWidth,
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int32_t aHeight,
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bool aRepaint);
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void NativeShow (bool aAction);
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void SetHasMappedToplevel(bool aState);
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nsIntSize GetSafeWindowSize(nsIntSize aSize);
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void EnsureGrabs (void);
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void GrabPointer (guint32 aTime);
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void ReleaseGrabs (void);
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public:
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enum PluginType {
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PluginType_NONE = 0, /* do not have any plugin */
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PluginType_XEMBED, /* the plugin support xembed */
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PluginType_NONXEMBED /* the plugin does not support xembed */
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};
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void SetPluginType(PluginType aPluginType);
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#ifdef MOZ_X11
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void SetNonXEmbedPluginFocus(void);
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void LoseNonXEmbedPluginFocus(void);
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#endif /* MOZ_X11 */
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void ThemeChanged(void);
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#ifdef MOZ_X11
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Window mOldFocusWindow;
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#endif /* MOZ_X11 */
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static guint32 sLastButtonPressTime;
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NS_IMETHOD BeginResizeDrag(nsGUIEvent* aEvent, int32_t aHorizontal, int32_t aVertical);
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NS_IMETHOD BeginMoveDrag(nsMouseEvent* aEvent);
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MozContainer* GetMozContainer() { return mContainer; }
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// GetMozContainerWidget returns the MozContainer even for undestroyed
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// descendant windows
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GtkWidget* GetMozContainerWidget();
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GdkWindow* GetGdkWindow() { return mGdkWindow; }
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bool IsDestroyed() { return mIsDestroyed; }
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void DispatchDragEvent(uint32_t aMsg,
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const nsIntPoint& aRefPoint,
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guint aTime);
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static void UpdateDragStatus (GdkDragContext *aDragContext,
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nsIDragService *aDragService);
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// If this dispatched the keydown event actually, this returns TRUE,
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// otherwise, FALSE.
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bool DispatchKeyDownEvent(GdkEventKey *aEvent,
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bool *aIsCancelled);
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NS_IMETHOD NotifyIME(NotificationToIME aNotification) MOZ_OVERRIDE;
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NS_IMETHOD_(void) SetInputContext(const InputContext& aContext,
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const InputContextAction& aAction);
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NS_IMETHOD_(InputContext) GetInputContext();
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NS_IMETHOD GetToggledKeyState(uint32_t aKeyCode, bool* aLEDState);
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// These methods are for toplevel windows only.
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void ResizeTransparencyBitmap();
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void ApplyTransparencyBitmap();
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void ClearTransparencyBitmap();
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virtual void SetTransparencyMode(nsTransparencyMode aMode);
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virtual nsTransparencyMode GetTransparencyMode();
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virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations);
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nsresult UpdateTranslucentWindowAlphaInternal(const nsIntRect& aRect,
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uint8_t* aAlphas, int32_t aStride);
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#if defined(MOZ_WIDGET_GTK2)
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gfxASurface *GetThebesSurface();
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static already_AddRefed<gfxASurface> GetSurfaceForGdkDrawable(GdkDrawable* aDrawable,
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const nsIntSize& aSize);
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#else
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gfxASurface *GetThebesSurface(cairo_t *cr);
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#endif
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NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
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virtual nsresult SynthesizeNativeMouseEvent(nsIntPoint aPoint,
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uint32_t aNativeMessage,
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uint32_t aModifierFlags);
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virtual nsresult SynthesizeNativeMouseMove(nsIntPoint aPoint)
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{ return SynthesizeNativeMouseEvent(aPoint, GDK_MOTION_NOTIFY, 0); }
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protected:
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// event handling code
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void DispatchActivateEvent(void);
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void DispatchDeactivateEvent(void);
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void DispatchResized(int32_t aWidth, int32_t aHeight);
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// Helper for SetParent and ReparentNativeWidget.
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void ReparentNativeWidgetInternal(nsIWidget* aNewParent,
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GtkWidget* aNewContainer,
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GdkWindow* aNewParentWindow,
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GtkWidget* aOldContainer);
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nsCOMPtr<nsIWidget> mParent;
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// Is this a toplevel window?
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bool mIsTopLevel;
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// Has this widget been destroyed yet?
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bool mIsDestroyed;
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// This is a flag that tracks if we need to resize a widget or
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// window when we show it.
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bool mNeedsResize;
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// This is a flag that tracks if we need to move a widget or
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// window when we show it.
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bool mNeedsMove;
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// Should we send resize events on all resizes?
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bool mListenForResizes;
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// This flag tracks if we're hidden or shown.
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bool mIsShown;
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bool mNeedsShow;
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// is this widget enabled?
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bool mEnabled;
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// has the native window for this been created yet?
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bool mCreated;
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private:
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void DestroyChildWindows();
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GtkWidget *GetToplevelWidget();
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nsWindow *GetContainerWindow();
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void SetUrgencyHint(GtkWidget *top_window, bool state);
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void *SetupPluginPort(void);
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void SetDefaultIcon(void);
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void InitButtonEvent(nsMouseEvent &aEvent, GdkEventButton *aGdkEvent);
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bool DispatchCommandEvent(nsIAtom* aCommand);
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bool DispatchContentCommandEvent(int32_t aMsg);
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void SetWindowClipRegion(const nsTArray<nsIntRect>& aRects,
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bool aIntersectWithExisting);
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bool CheckForRollup(gdouble aMouseX, gdouble aMouseY,
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bool aIsWheel, bool aAlwaysRollup);
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bool GetDragInfo(nsMouseEvent* aMouseEvent,
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GdkWindow** aWindow, gint* aButton,
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gint* aRootX, gint* aRootY);
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void ClearCachedResources();
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GtkWidget *mShell;
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MozContainer *mContainer;
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GdkWindow *mGdkWindow;
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uint32_t mHasMappedToplevel : 1,
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mIsFullyObscured : 1,
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mRetryPointerGrab : 1;
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nsSizeMode mSizeState;
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PluginType mPluginType;
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int32_t mTransparencyBitmapWidth;
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int32_t mTransparencyBitmapHeight;
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#ifdef MOZ_HAVE_SHMIMAGE
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// If we're using xshm rendering, mThebesSurface wraps mShmImage
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nsRefPtr<nsShmImage> mShmImage;
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#endif
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nsRefPtr<gfxASurface> mThebesSurface;
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#ifdef ACCESSIBILITY
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nsRefPtr<mozilla::a11y::Accessible> mRootAccessible;
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/**
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* Request to create the accessible for this window if it is top level.
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*/
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void CreateRootAccessible();
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/**
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* Dispatch accessible event for the top level window accessible.
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*
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* @param aEventType [in] the accessible event type to dispatch
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*/
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void DispatchEventToRootAccessible(uint32_t aEventType);
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/**
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* Dispatch accessible window activate event for the top level window
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* accessible.
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*/
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void DispatchActivateEventAccessible();
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/**
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* Dispatch accessible window deactivate event for the top level window
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* accessible.
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*/
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void DispatchDeactivateEventAccessible();
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/**
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* Dispatch accessible window maximize event for the top level window
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* accessible.
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*/
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void DispatchMaximizeEventAccessible();
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/**
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* Dispatch accessible window minize event for the top level window
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* accessible.
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*/
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void DispatchMinimizeEventAccessible();
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/**
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* Dispatch accessible window restore event for the top level window
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* accessible.
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*/
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void DispatchRestoreEventAccessible();
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#endif
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// The cursor cache
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static GdkCursor *gsGtkCursorCache[eCursorCount];
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// Transparency
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bool mIsTransparent;
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// This bitmap tracks which pixels are transparent. We don't support
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// full translucency at this time; each pixel is either fully opaque
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// or fully transparent.
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gchar* mTransparencyBitmap;
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// all of our DND stuff
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void InitDragEvent (nsDragEvent &aEvent);
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float mLastMotionPressure;
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// Remember the last sizemode so that we can restore it when
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// leaving fullscreen
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nsSizeMode mLastSizeMode;
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static bool DragInProgress(void);
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void DispatchMissedButtonReleases(GdkEventCrossing *aGdkEvent);
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// nsBaseWidget
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virtual LayerManager* GetLayerManager(PLayerTransactionChild* aShadowManager = nullptr,
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LayersBackend aBackendHint = mozilla::layers::LAYERS_NONE,
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LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT,
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bool* aAllowRetaining = nullptr) MOZ_OVERRIDE;
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void CleanLayerManagerRecursive();
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/**
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* |mIMModule| takes all IME related stuff.
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*
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* This is owned by the top-level nsWindow or the topmost child
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* nsWindow embedded in a non-Gecko widget.
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*
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* The instance is created when the top level widget is created. And when
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* the widget is destroyed, it's released. All child windows refer its
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* ancestor widget's instance. So, one set of IM contexts is created for
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* all windows in a hierarchy. If the children are released after the top
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* level window is released, the children still have a valid pointer,
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* however, IME doesn't work at that time.
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*/
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nsRefPtr<nsGtkIMModule> mIMModule;
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};
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class nsChildWindow : public nsWindow {
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public:
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nsChildWindow();
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~nsChildWindow();
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};
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#endif /* __nsWindow_h__ */
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