зеркало из https://github.com/mozilla/gecko-dev.git
571 строка
23 KiB
C++
571 строка
23 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 "mozcontainer.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/UniquePtr.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 "nsRefPtrHashtable.h"
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#include "nsBaseWidget.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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#include "mozilla/widget/WindowSurface.h"
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#include "mozilla/widget/WindowSurfaceProvider.h"
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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 "mozilla/EventForwards.h"
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#include "mozilla/TouchEvents.h"
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#include "IMContextWrapper.h"
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#undef LOG
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#ifdef MOZ_LOGGING
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#include "mozilla/Logging.h"
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#include "nsTArray.h"
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#include "Units.h"
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extern mozilla::LazyLogModule gWidgetLog;
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extern mozilla::LazyLogModule gWidgetFocusLog;
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extern mozilla::LazyLogModule gWidgetDragLog;
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extern mozilla::LazyLogModule gWidgetDrawLog;
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#define LOG(args) MOZ_LOG(gWidgetLog, mozilla::LogLevel::Debug, args)
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#define LOGFOCUS(args) MOZ_LOG(gWidgetFocusLog, mozilla::LogLevel::Debug, args)
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#define LOGDRAG(args) MOZ_LOG(gWidgetDragLog, mozilla::LogLevel::Debug, args)
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#define LOGDRAW(args) MOZ_LOG(gWidgetDrawLog, mozilla::LogLevel::Debug, 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 gfxPattern;
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namespace mozilla {
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class TimeStamp;
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class CurrentX11TimeGetter;
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}
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class nsWindow final : public nsBaseWidget
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{
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public:
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typedef mozilla::gfx::DrawTarget DrawTarget;
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typedef mozilla::WidgetEventTime WidgetEventTime;
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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(mozilla::WidgetGUIEvent* aEvent,
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nsEventStatus& aStatus) override;
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// called when we are destroyed
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virtual void OnDestroy(void) override;
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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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using nsBaseWidget::Create; // for Create signature not overridden here
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virtual MOZ_MUST_USE nsresult Create(nsIWidget* aParent,
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nsNativeWidget aNativeParent,
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const LayoutDeviceIntRect& aRect,
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nsWidgetInitData* aInitData) override;
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virtual void Destroy() override;
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virtual nsIWidget *GetParent() override;
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virtual float GetDPI() override;
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virtual double GetDefaultScaleInternal() override;
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// Under Gtk, we manage windows using device pixels so no scaling is needed:
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mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScale() final
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{
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return mozilla::DesktopToLayoutDeviceScale(1.0);
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}
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virtual void SetParent(nsIWidget* aNewParent) override;
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virtual void SetModal(bool aModal) override;
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virtual bool IsVisible() const override;
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virtual void ConstrainPosition(bool aAllowSlop,
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int32_t *aX,
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int32_t *aY) override;
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virtual void SetSizeConstraints(const SizeConstraints& aConstraints) override;
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virtual void Move(double aX,
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double aY) override;
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virtual void Show (bool aState) override;
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virtual void Resize (double aWidth,
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double aHeight,
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bool aRepaint) override;
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virtual void 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) override;
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virtual bool IsEnabled() const override;
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void SetZIndex(int32_t aZIndex) override;
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virtual void SetSizeMode(nsSizeMode aMode) override;
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virtual void Enable(bool aState) override;
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virtual nsresult SetFocus(bool aRaise = false) override;
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virtual LayoutDeviceIntRect GetScreenBounds() override;
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virtual LayoutDeviceIntRect GetClientBounds() override;
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virtual LayoutDeviceIntSize GetClientSize() override;
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virtual LayoutDeviceIntPoint GetClientOffset() override;
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virtual void SetCursor(nsCursor aCursor) override;
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virtual nsresult SetCursor(imgIContainer* aCursor,
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uint32_t aHotspotX, uint32_t aHotspotY) override;
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virtual void Invalidate(const LayoutDeviceIntRect& aRect) override;
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virtual void* GetNativeData(uint32_t aDataType) override;
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virtual nsresult SetTitle(const nsAString& aTitle) override;
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virtual void SetIcon(const nsAString& aIconSpec) override;
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virtual void SetWindowClass(const nsAString& xulWinType) override;
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virtual LayoutDeviceIntPoint WidgetToScreenOffset() override;
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virtual void CaptureMouse(bool aCapture) override;
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virtual void CaptureRollupEvents(nsIRollupListener *aListener,
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bool aDoCapture) override;
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virtual MOZ_MUST_USE nsresult GetAttention(int32_t aCycleCount) override;
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virtual nsresult SetWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects,
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bool aIntersectWithExisting) override;
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virtual bool HasPendingInputEvent() override;
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virtual bool PrepareForFullscreenTransition(nsISupports** aData) override;
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virtual void PerformFullscreenTransition(FullscreenTransitionStage aStage,
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uint16_t aDuration,
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nsISupports* aData,
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nsIRunnable* aCallback) override;
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virtual already_AddRefed<nsIScreen> GetWidgetScreen() override;
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virtual nsresult MakeFullScreen(bool aFullScreen,
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nsIScreen* aTargetScreen = nullptr) override;
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virtual void HideWindowChrome(bool aShouldHide) override;
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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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GdkRectangle DevicePixelsToGdkRectRoundOut(LayoutDeviceIntRect aRect);
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// event callbacks
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#if (MOZ_WIDGET_GTK == 2)
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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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/**
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* MaybeDispatchContextMenuEvent() may dispatch eContextMenu event if
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* the given key combination should cause opening context menu.
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*
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* @param aEvent The native key event.
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* @return true if this method dispatched eContextMenu
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* event. Otherwise, false.
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* Be aware, when this returns true, the
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* widget may have been destroyed.
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*/
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bool MaybeDispatchContextMenuEvent(const 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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gboolean OnPropertyNotifyEvent(GtkWidget *aWidget,
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GdkEventProperty *aEvent);
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#if GTK_CHECK_VERSION(3,4,0)
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gboolean OnTouchEvent(GdkEventTouch* aEvent);
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#endif
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virtual already_AddRefed<mozilla::gfx::DrawTarget>
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StartRemoteDrawingInRegion(LayoutDeviceIntRegion& aInvalidRegion,
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mozilla::layers::BufferMode* aBufferMode) override;
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virtual void EndRemoteDrawingInRegion(mozilla::gfx::DrawTarget* aDrawTarget,
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LayoutDeviceIntRegion& aInvalidRegion) override;
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private:
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void UpdateAlpha(mozilla::gfx::SourceSurface* aSourceSurface, nsIntRect aBoundsRect);
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void NativeMove();
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void NativeResize();
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void NativeMoveResize();
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void NativeShow (bool aAction);
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void SetHasMappedToplevel(bool aState);
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LayoutDeviceIntSize GetSafeWindowSize(LayoutDeviceIntSize 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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void UpdateClientOffset();
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public:
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void ThemeChanged(void);
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void OnDPIChanged(void);
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void OnCheckResize(void);
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void OnCompositedChanged(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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virtual MOZ_MUST_USE nsresult
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BeginResizeDrag(mozilla::WidgetGUIEvent* aEvent,
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int32_t aHorizontal,
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int32_t aVertical) override;
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virtual MOZ_MUST_USE nsresult
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BeginMoveDrag(mozilla::WidgetMouseEvent* aEvent) override;
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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(mozilla::EventMessage aMsg,
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const LayoutDeviceIntPoint& 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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WidgetEventTime GetWidgetEventTime(guint32 aEventTime);
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mozilla::TimeStamp GetEventTimeStamp(guint32 aEventTime);
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mozilla::CurrentX11TimeGetter* GetCurrentTimeGetter();
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virtual void SetInputContext(const InputContext& aContext,
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const InputContextAction& aAction) override;
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virtual InputContext GetInputContext() override;
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virtual TextEventDispatcherListener*
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GetNativeTextEventDispatcherListener() override;
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void GetEditCommandsRemapped(NativeKeyBindingsType aType,
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const mozilla::WidgetKeyboardEvent& aEvent,
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nsTArray<mozilla::CommandInt>& aCommands,
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uint32_t aGeckoKeyCode,
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uint32_t aNativeKeyCode);
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virtual void GetEditCommands(
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NativeKeyBindingsType aType,
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const mozilla::WidgetKeyboardEvent& aEvent,
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nsTArray<mozilla::CommandInt>& aCommands) override;
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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) override;
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virtual nsTransparencyMode GetTransparencyMode() override;
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#if (MOZ_WIDGET_GTK >= 3)
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virtual void UpdateOpaqueRegion(const LayoutDeviceIntRegion& aOpaqueRegion) override;
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#endif
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virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations) override;
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nsresult UpdateTranslucentWindowAlphaInternal(const nsIntRect& aRect,
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uint8_t* aAlphas, int32_t aStride);
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#if (MOZ_WIDGET_GTK == 2)
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static already_AddRefed<DrawTarget> GetDrawTargetForGdkDrawable(GdkDrawable* aDrawable,
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const mozilla::gfx::IntSize& aSize);
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#endif
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virtual void ReparentNativeWidget(nsIWidget* aNewParent) override;
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virtual nsresult SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint,
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uint32_t aNativeMessage,
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uint32_t aModifierFlags,
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nsIObserver* aObserver) override;
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virtual nsresult SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
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nsIObserver* aObserver) override
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{ return SynthesizeNativeMouseEvent(aPoint, GDK_MOTION_NOTIFY, 0, aObserver); }
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virtual nsresult SynthesizeNativeMouseScrollEvent(LayoutDeviceIntPoint aPoint,
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uint32_t aNativeMessage,
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double aDeltaX,
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double aDeltaY,
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double aDeltaZ,
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uint32_t aModifierFlags,
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uint32_t aAdditionalFlags,
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nsIObserver* aObserver) override;
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#if GTK_CHECK_VERSION(3,4,0)
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virtual nsresult SynthesizeNativeTouchPoint(uint32_t aPointerId,
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TouchPointerState aPointerState,
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LayoutDeviceIntPoint aPoint,
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double aPointerPressure,
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uint32_t aPointerOrientation,
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nsIObserver* aObserver) override;
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#endif
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#ifdef MOZ_X11
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Display* XDisplay() { return mXDisplay; }
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#endif
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virtual void GetCompositorWidgetInitData(mozilla::widget::CompositorWidgetInitData* aInitData) override;
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// HiDPI scale conversion
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gint GdkScaleFactor();
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// To GDK
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gint DevicePixelsToGdkCoordRoundUp(int pixels);
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gint DevicePixelsToGdkCoordRoundDown(int pixels);
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GdkPoint DevicePixelsToGdkPointRoundDown(LayoutDeviceIntPoint point);
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GdkRectangle DevicePixelsToGdkSizeRoundUp(LayoutDeviceIntSize pixelSize);
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// From GDK
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int GdkCoordToDevicePixels(gint coord);
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LayoutDeviceIntPoint GdkPointToDevicePixels(GdkPoint point);
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LayoutDeviceIntPoint GdkEventCoordsToDevicePixels(gdouble x, gdouble y);
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LayoutDeviceIntRect GdkRectToDevicePixels(GdkRectangle rect);
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virtual bool WidgetTypeSupportsAcceleration() override;
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protected:
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virtual ~nsWindow();
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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();
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void MaybeDispatchResized();
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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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virtual void RegisterTouchWindow() override;
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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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// Should we send resize events on all resizes?
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bool mListenForResizes;
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// Does WindowResized need to be called on listeners?
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bool mNeedsDispatchResized;
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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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#if GTK_CHECK_VERSION(3,4,0)
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// whether we handle touch event
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bool mHandleTouchEvent;
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#endif
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// true if this is a drag and drop feedback popup
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bool mIsDragPopup;
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// Can we access X?
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bool mIsX11Display;
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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 SetDefaultIcon(void);
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void InitButtonEvent(mozilla::WidgetMouseEvent& aEvent,
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GdkEventButton* aGdkEvent);
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bool DispatchCommandEvent(nsIAtom* aCommand);
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bool DispatchContentCommandEvent(mozilla::EventMessage aMsg);
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bool CheckForRollup(gdouble aMouseX, gdouble aMouseY,
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bool aIsWheel, bool aAlwaysRollup);
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void CheckForRollupDuringGrab()
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{
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CheckForRollup(0, 0, false, true);
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}
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bool GetDragInfo(mozilla::WidgetMouseEvent* 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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nsIWidgetListener* GetListener();
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bool IsComposited() const;
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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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int32_t mTransparencyBitmapWidth;
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int32_t mTransparencyBitmapHeight;
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nsIntPoint mClientOffset;
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#if GTK_CHECK_VERSION(3,4,0)
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// This field omits duplicate scroll events caused by GNOME bug 726878.
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guint32 mLastScrollEventTime;
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// for touch event handling
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nsRefPtrHashtable<nsPtrHashKey<GdkEventSequence>, mozilla::dom::Touch> mTouches;
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#endif
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#ifdef MOZ_X11
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Display* mXDisplay;
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Window mXWindow;
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Visual* mXVisual;
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int mXDepth;
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mozilla::widget::WindowSurfaceProvider mSurfaceProvider;
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#endif
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// Upper bound on pending ConfigureNotify events to be dispatched to the
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// window. See bug 1225044.
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unsigned int mPendingConfigures;
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#ifdef ACCESSIBILITY
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RefPtr<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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|
*/
|
|
void DispatchDeactivateEventAccessible();
|
|
|
|
/**
|
|
* Dispatch accessible window maximize event for the top level window
|
|
* accessible.
|
|
*/
|
|
void DispatchMaximizeEventAccessible();
|
|
|
|
/**
|
|
* Dispatch accessible window minize event for the top level window
|
|
* accessible.
|
|
*/
|
|
void DispatchMinimizeEventAccessible();
|
|
|
|
/**
|
|
* Dispatch accessible window restore event for the top level window
|
|
* accessible.
|
|
*/
|
|
void DispatchRestoreEventAccessible();
|
|
#endif
|
|
|
|
// The cursor cache
|
|
static GdkCursor *gsGtkCursorCache[eCursorCount];
|
|
|
|
// Transparency
|
|
bool mIsTransparent;
|
|
// This bitmap tracks which pixels are transparent. We don't support
|
|
// full translucency at this time; each pixel is either fully opaque
|
|
// or fully transparent.
|
|
gchar* mTransparencyBitmap;
|
|
|
|
// all of our DND stuff
|
|
void InitDragEvent(mozilla::WidgetDragEvent& aEvent);
|
|
|
|
float mLastMotionPressure;
|
|
|
|
// Remember the last sizemode so that we can restore it when
|
|
// leaving fullscreen
|
|
nsSizeMode mLastSizeMode;
|
|
|
|
static bool DragInProgress(void);
|
|
|
|
void DispatchMissedButtonReleases(GdkEventCrossing *aGdkEvent);
|
|
|
|
// nsBaseWidget
|
|
virtual LayerManager* GetLayerManager(PLayerTransactionChild* aShadowManager = nullptr,
|
|
LayersBackend aBackendHint = mozilla::layers::LayersBackend::LAYERS_NONE,
|
|
LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT) override;
|
|
|
|
void CleanLayerManagerRecursive();
|
|
|
|
virtual int32_t RoundsWidgetCoordinatesTo() override;
|
|
|
|
/**
|
|
* |mIMContext| takes all IME related stuff.
|
|
*
|
|
* This is owned by the top-level nsWindow or the topmost child
|
|
* nsWindow embedded in a non-Gecko widget.
|
|
*
|
|
* The instance is created when the top level widget is created. And when
|
|
* the widget is destroyed, it's released. All child windows refer its
|
|
* ancestor widget's instance. So, one set of IM contexts is created for
|
|
* all windows in a hierarchy. If the children are released after the top
|
|
* level window is released, the children still have a valid pointer,
|
|
* however, IME doesn't work at that time.
|
|
*/
|
|
RefPtr<mozilla::widget::IMContextWrapper> mIMContext;
|
|
|
|
mozilla::UniquePtr<mozilla::CurrentX11TimeGetter> mCurrentTimeGetter;
|
|
};
|
|
|
|
#endif /* __nsWindow_h__ */
|