WebKit merge 40668:40722 part 1.

third_party/WebKit/WebCore/page/EventHandler.h

Index: third_party/WebKit/WebCore/page/EventHandler.h
===================================================================
--- third_party/WebKit/WebCore/page/EventHandler.h	(revision 9310)
+++ third_party/WebKit/WebCore/page/EventHandler.h	(working copy)
@@ -1,355 +1,354 @@
-/*
- * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#ifndef EventHandler_h
-#define EventHandler_h
-
-#include "DragActions.h"
-#include "FocusDirection.h"
-#include "PlatformMouseEvent.h"
-#include "ScrollTypes.h"
-#include "Timer.h"
-#include <wtf/Forward.h>
-#include <wtf/Noncopyable.h>
-#include <wtf/Platform.h>
-#include <wtf/RefPtr.h>
-
-#if PLATFORM(MAC)
-#include "WebCoreKeyboardUIMode.h"
-#ifndef __OBJC__
-class NSEvent;
-class NSView;
-#endif
-#endif
-
-namespace WebCore {
-
-class AtomicString;
-class Clipboard;
-class Cursor;
-class EventTargetNode;
-class Event;
-class FloatPoint;
-class FloatRect;
-class Frame;
-class HitTestRequest;
-class HitTestResult;
-class HTMLFrameSetElement;
-class KeyboardEvent;
-class MouseEventWithHitTestResults;
-class Node;
-class PlatformKeyboardEvent;
-class PlatformWheelEvent;
-class RenderLayer;
-class RenderObject;
-class RenderWidget;
-class Scrollbar;
-class String;
-class SVGElementInstance;
-class TextEvent;
-class VisiblePosition;
-class Widget;
-    
-extern const int LinkDragHysteresis;
-extern const int ImageDragHysteresis;
-extern const int TextDragHysteresis;
-extern const int GeneralDragHysteresis;
-
-class EventHandler : Noncopyable {
-public:
-    EventHandler(Frame*);
-    ~EventHandler();
-
-    void clear();
-
-    void updateSelectionForMouseDrag();
-
-    Node* mousePressNode() const;
-    void setMousePressNode(PassRefPtr<Node>);
-
-    bool panScrollInProgress() { return m_panScrollInProgress; }
-    void setPanScrollInProgress(bool inProgress) { m_panScrollInProgress = inProgress; }
-
-    void stopAutoscrollTimer(bool rendererIsBeingDestroyed = false);
-    RenderObject* autoscrollRenderer() const;
-    void updateAutoscrollRenderer();
-
-    HitTestResult hitTestResultAtPoint(const IntPoint&, bool allowShadowContent, bool ignoreClipping = false);
-
-    bool mousePressed() const { return m_mousePressed; }
-    void setMousePressed(bool pressed) { m_mousePressed = pressed; }
-
-    void setCapturingMouseEventsNode(PassRefPtr<Node>);
-
-    bool updateDragAndDrop(const PlatformMouseEvent&, Clipboard*);
-    void cancelDragAndDrop(const PlatformMouseEvent&, Clipboard*);
-    bool performDragAndDrop(const PlatformMouseEvent&, Clipboard*);
-
-    void scheduleHoverStateUpdate();
-
-    void setResizingFrameSet(HTMLFrameSetElement*);
-
-    void resizeLayerDestroyed();
-
-    IntPoint currentMousePosition() const;
-
-    void setIgnoreWheelEvents(bool);
-
-    bool scrollOverflow(ScrollDirection, ScrollGranularity);
-
-    bool shouldDragAutoNode(Node*, const IntPoint&) const; // -webkit-user-drag == auto
-
-    bool tabsToLinks(KeyboardEvent*) const;
-    bool tabsToAllControls(KeyboardEvent*) const;
-
-    bool mouseDownMayStartSelect() const { return m_mouseDownMayStartSelect; }
-
-    bool mouseMoved(const PlatformMouseEvent&);
-
-    bool handleMousePressEvent(const PlatformMouseEvent&);
-    bool handleMouseMoveEvent(const PlatformMouseEvent&, HitTestResult* hoveredNode = 0);
-    bool handleMouseReleaseEvent(const PlatformMouseEvent&);
-    bool handleWheelEvent(PlatformWheelEvent&);
-
-    bool sendContextMenuEvent(const PlatformMouseEvent&);
-
-    void setMouseDownMayStartAutoscroll() { m_mouseDownMayStartAutoscroll = true; }
-
-    bool needsKeyboardEventDisambiguationQuirks() const;
-
-    static unsigned accessKeyModifiers();
-    bool handleAccessKey(const PlatformKeyboardEvent&);
-    bool keyEvent(const PlatformKeyboardEvent&);
-    void defaultKeyboardEventHandler(KeyboardEvent*);
-
-    bool handleTextInputEvent(const String& text, Event* underlyingEvent = 0,
-        bool isLineBreak = false, bool isBackTab = false);
-    void defaultTextInputEventHandler(TextEvent*);
-
-    bool eventMayStartDrag(const PlatformMouseEvent&) const;
-    
-    void dragSourceMovedTo(const PlatformMouseEvent&);
-    void dragSourceEndedAt(const PlatformMouseEvent&, DragOperation);
-
-    void focusDocumentView();
-
-    void capsLockStateMayHaveChanged();
-    
-    unsigned pendingFrameUnloadEventCount();
-    void addPendingFrameUnloadEventCount();
-    void removePendingFrameUnloadEventCount();
-    void clearPendingFrameUnloadEventCount();
-    unsigned pendingFrameBeforeUnloadEventCount();
-    void addPendingFrameBeforeUnloadEventCount();
-    void removePendingFrameBeforeUnloadEventCount();
-    void clearPendingFrameBeforeUnloadEventCount();
-
-    void sendResizeEvent();
-    void sendScrollEvent();
-    
-#if PLATFORM(MAC)
-    PassRefPtr<KeyboardEvent> currentKeyboardEvent() const;
-
-    void mouseDown(NSEvent*);
-    void mouseDragged(NSEvent*);
-    void mouseUp(NSEvent*);
-    void mouseMoved(NSEvent*);
-    bool keyEvent(NSEvent*);
-    bool wheelEvent(NSEvent*);
-
-    void sendFakeEventsAfterWidgetTracking(NSEvent* initiatingEvent);
-
-    void setActivationEventNumber(int num) { m_activationEventNumber = num; }
-
-    NSEvent *currentNSEvent();
-#endif
-
-private:
-    struct EventHandlerDragState {
-        RefPtr<Node> m_dragSrc; // element that may be a drag source, for the current mouse gesture
-        bool m_dragSrcIsLink;
-        bool m_dragSrcIsImage;
-        bool m_dragSrcInSelection;
-        bool m_dragSrcMayBeDHTML;
-        bool m_dragSrcMayBeUA; // Are DHTML and/or the UserAgent allowed to drag out?
-        bool m_dragSrcIsDHTML;
-        RefPtr<Clipboard> m_dragClipboard; // used on only the source side of dragging
-    };
-    static EventHandlerDragState& dragState();
-    static const double TextDragDelay;
-    
-    PassRefPtr<Clipboard> createDraggingClipboard() const;
-    
-    bool eventActivatedView(const PlatformMouseEvent&) const;
-    void selectClosestWordFromMouseEvent(const MouseEventWithHitTestResults& event);
-    void selectClosestWordOrLinkFromMouseEvent(const MouseEventWithHitTestResults& event);
-
-    bool handleMouseDoubleClickEvent(const PlatformMouseEvent&);
-
-    bool handleMousePressEvent(const MouseEventWithHitTestResults&);
-    bool handleMousePressEventSingleClick(const MouseEventWithHitTestResults&);
-    bool handleMousePressEventDoubleClick(const MouseEventWithHitTestResults&);
-    bool handleMousePressEventTripleClick(const MouseEventWithHitTestResults&);
-    bool handleMouseDraggedEvent(const MouseEventWithHitTestResults&);
-    bool handleMouseReleaseEvent(const MouseEventWithHitTestResults&);
-
-    void handleKeyboardSelectionMovement(KeyboardEvent*);
-    
-    Cursor selectCursor(const MouseEventWithHitTestResults&, Scrollbar*);
-    void setPanScrollCursor();
-
-    void hoverTimerFired(Timer<EventHandler>*);
-
-    static bool canMouseDownStartSelect(Node*);
-    static bool canMouseDragExtendSelect(Node*);
-
-    void handleAutoscroll(RenderObject*);
-    void startAutoscrollTimer();
-    void setAutoscrollRenderer(RenderObject*);
-    void autoscrollTimerFired(Timer<EventHandler>*);
-
-    void invalidateClick();
-
-    Node* nodeUnderMouse() const;
-    
-    void updateMouseEventTargetNode(Node*, const PlatformMouseEvent&, bool fireMouseOverOut);
-    void fireMouseOverOut(bool fireMouseOver = true, bool fireMouseOut = true, bool updateLastNodeUnderMouse = true);
-    
-    MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&, const PlatformMouseEvent&);
-
-    bool dispatchMouseEvent(const AtomicString& eventType, Node* target, bool cancelable, int clickCount, const PlatformMouseEvent&, bool setUnder);
-    bool dispatchDragEvent(const AtomicString& eventType, Node* target, const PlatformMouseEvent&, Clipboard*);
-
-    void freeClipboard();
-
-    bool handleDrag(const MouseEventWithHitTestResults&);
-    bool handleMouseUp(const MouseEventWithHitTestResults&);
-    void clearDragState();
-
-    bool dispatchDragSrcEvent(const AtomicString& eventType, const PlatformMouseEvent&);
-
-    bool dragHysteresisExceeded(const FloatPoint&) const;
-    bool dragHysteresisExceeded(const IntPoint&) const;
-
-    bool passMousePressEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe);
-    bool passMouseMoveEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe, HitTestResult* hoveredNode = 0);
-    bool passMouseReleaseEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe);
-
-    bool passSubframeEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe, HitTestResult* hoveredNode = 0);
-
-    bool passMousePressEventToScrollbar(MouseEventWithHitTestResults&, Scrollbar*);
-
-    bool passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults&);
-    bool passWidgetMouseDownEventToWidget(RenderWidget*);
-
-    bool passMouseDownEventToWidget(Widget*);
-    bool passWheelEventToWidget(PlatformWheelEvent&, Widget*);
-
-    void defaultSpaceEventHandler(KeyboardEvent*);
-    void defaultTabEventHandler(KeyboardEvent*);
-
-    void allowDHTMLDrag(bool& flagDHTML, bool& flagUA) const;
-
-    // The following are called at the beginning of handleMouseUp and handleDrag.  
-    // If they return true it indicates that they have consumed the event.
-#if PLATFORM(MAC)
-    bool eventLoopHandleMouseUp(const MouseEventWithHitTestResults&);
-    bool eventLoopHandleMouseDragged(const MouseEventWithHitTestResults&);
-    NSView *mouseDownViewIfStillGood();
-#else
-    bool eventLoopHandleMouseUp(const MouseEventWithHitTestResults&) { return false; }
-    bool eventLoopHandleMouseDragged(const MouseEventWithHitTestResults&) { return false; }
-#endif
-
-    bool invertSenseOfTabsToLinks(KeyboardEvent*) const;
-
-    void updateSelectionForMouseDrag(Node* targetNode, const IntPoint& localPoint);
-
-    Frame* m_frame;
-
-    bool m_mousePressed;
-    RefPtr<Node> m_mousePressNode;
-
-    bool m_mouseDownMayStartSelect;
-    bool m_mouseDownMayStartDrag;
-    bool m_mouseDownWasSingleClickInSelection;
-    bool m_beganSelectingText;
-
-    IntPoint m_dragStartPos;
-
-    IntPoint m_panScrollStartPos;
-    bool m_panScrollInProgress;
-
-    Timer<EventHandler> m_hoverTimer;
-    
-    Timer<EventHandler> m_autoscrollTimer;
-    RenderObject* m_autoscrollRenderer;
-    bool m_autoscrollInProgress;
-    bool m_mouseDownMayStartAutoscroll;
-    bool m_mouseDownWasInSubframe;
-#if ENABLE(SVG)
-    bool m_svgPan;
-    RefPtr<SVGElementInstance> m_instanceUnderMouse;
-    RefPtr<SVGElementInstance> m_lastInstanceUnderMouse;
-#endif
-
-    RenderLayer* m_resizeLayer;
-
-    RefPtr<Node> m_capturingMouseEventsNode;
-    
-    RefPtr<Node> m_nodeUnderMouse;
-    RefPtr<Node> m_lastNodeUnderMouse;
-    RefPtr<Frame> m_lastMouseMoveEventSubframe;
-    RefPtr<Scrollbar> m_lastScrollbarUnderMouse;
-
-    int m_clickCount;
-    RefPtr<Node> m_clickNode;
-
-    RefPtr<Node> m_dragTarget;
-    
-    RefPtr<HTMLFrameSetElement> m_frameSetBeingResized;
-
-    IntSize m_offsetFromResizeCorner;   // in the coords of m_resizeLayer
-    
-    IntPoint m_currentMousePosition;
-    IntPoint m_mouseDownPos; // in our view's coords
-    double m_mouseDownTimestamp;
-    PlatformMouseEvent m_mouseDown;
-    
-    unsigned m_pendingFrameUnloadEventCount;
-    unsigned m_pendingFrameBeforeUnloadEventCount;
-
-#if PLATFORM(MAC)
-    NSView *m_mouseDownView;
-    bool m_sendingEventToSubview;
-    int m_activationEventNumber;
-#endif
-
-};
-
-} // namespace WebCore
-
-#endif // EventHandler_h
-
+/*
+ * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef EventHandler_h
+#define EventHandler_h
+
+#include "DragActions.h"
+#include "FocusDirection.h"
+#include "PlatformMouseEvent.h"
+#include "ScrollTypes.h"
+#include "Timer.h"
+#include <wtf/Forward.h>
+#include <wtf/Noncopyable.h>
+#include <wtf/Platform.h>
+#include <wtf/RefPtr.h>
+
+#if PLATFORM(MAC)
+#include "WebCoreKeyboardUIMode.h"
+#ifndef __OBJC__
+class NSEvent;
+class NSView;
+#endif
+#endif
+
+namespace WebCore {
+
+class AtomicString;
+class Clipboard;
+class Cursor;
+class Event;
+class FloatPoint;
+class FloatRect;
+class Frame;
+class HitTestRequest;
+class HitTestResult;
+class HTMLFrameSetElement;
+class KeyboardEvent;
+class MouseEventWithHitTestResults;
+class Node;
+class PlatformKeyboardEvent;
+class PlatformWheelEvent;
+class RenderLayer;
+class RenderObject;
+class RenderWidget;
+class Scrollbar;
+class String;
+class SVGElementInstance;
+class TextEvent;
+class VisiblePosition;
+class Widget;
+    
+extern const int LinkDragHysteresis;
+extern const int ImageDragHysteresis;
+extern const int TextDragHysteresis;
+extern const int GeneralDragHysteresis;
+
+class EventHandler : Noncopyable {
+public:
+    EventHandler(Frame*);
+    ~EventHandler();
+
+    void clear();
+
+    void updateSelectionForMouseDrag();
+
+    Node* mousePressNode() const;
+    void setMousePressNode(PassRefPtr<Node>);
+
+    bool panScrollInProgress() { return m_panScrollInProgress; }
+    void setPanScrollInProgress(bool inProgress) { m_panScrollInProgress = inProgress; }
+
+    void stopAutoscrollTimer(bool rendererIsBeingDestroyed = false);
+    RenderObject* autoscrollRenderer() const;
+    void updateAutoscrollRenderer();
+
+    HitTestResult hitTestResultAtPoint(const IntPoint&, bool allowShadowContent, bool ignoreClipping = false);
+
+    bool mousePressed() const { return m_mousePressed; }
+    void setMousePressed(bool pressed) { m_mousePressed = pressed; }
+
+    void setCapturingMouseEventsNode(PassRefPtr<Node>);
+
+    bool updateDragAndDrop(const PlatformMouseEvent&, Clipboard*);
+    void cancelDragAndDrop(const PlatformMouseEvent&, Clipboard*);
+    bool performDragAndDrop(const PlatformMouseEvent&, Clipboard*);
+
+    void scheduleHoverStateUpdate();
+
+    void setResizingFrameSet(HTMLFrameSetElement*);
+
+    void resizeLayerDestroyed();
+
+    IntPoint currentMousePosition() const;
+
+    void setIgnoreWheelEvents(bool);
+
+    bool scrollOverflow(ScrollDirection, ScrollGranularity);
+
+    bool shouldDragAutoNode(Node*, const IntPoint&) const; // -webkit-user-drag == auto
+
+    bool tabsToLinks(KeyboardEvent*) const;
+    bool tabsToAllControls(KeyboardEvent*) const;
+
+    bool mouseDownMayStartSelect() const { return m_mouseDownMayStartSelect; }
+
+    bool mouseMoved(const PlatformMouseEvent&);
+
+    bool handleMousePressEvent(const PlatformMouseEvent&);
+    bool handleMouseMoveEvent(const PlatformMouseEvent&, HitTestResult* hoveredNode = 0);
+    bool handleMouseReleaseEvent(const PlatformMouseEvent&);
+    bool handleWheelEvent(PlatformWheelEvent&);
+
+    bool sendContextMenuEvent(const PlatformMouseEvent&);
+
+    void setMouseDownMayStartAutoscroll() { m_mouseDownMayStartAutoscroll = true; }
+
+    bool needsKeyboardEventDisambiguationQuirks() const;
+
+    static unsigned accessKeyModifiers();
+    bool handleAccessKey(const PlatformKeyboardEvent&);
+    bool keyEvent(const PlatformKeyboardEvent&);
+    void defaultKeyboardEventHandler(KeyboardEvent*);
+
+    bool handleTextInputEvent(const String& text, Event* underlyingEvent = 0,
+        bool isLineBreak = false, bool isBackTab = false);
+    void defaultTextInputEventHandler(TextEvent*);
+
+    bool eventMayStartDrag(const PlatformMouseEvent&) const;
+    
+    void dragSourceMovedTo(const PlatformMouseEvent&);
+    void dragSourceEndedAt(const PlatformMouseEvent&, DragOperation);
+
+    void focusDocumentView();
+
+    void capsLockStateMayHaveChanged();
+    
+    unsigned pendingFrameUnloadEventCount();
+    void addPendingFrameUnloadEventCount();
+    void removePendingFrameUnloadEventCount();
+    void clearPendingFrameUnloadEventCount();
+    unsigned pendingFrameBeforeUnloadEventCount();
+    void addPendingFrameBeforeUnloadEventCount();
+    void removePendingFrameBeforeUnloadEventCount();
+    void clearPendingFrameBeforeUnloadEventCount();
+
+    void sendResizeEvent();
+    void sendScrollEvent();
+    
+#if PLATFORM(MAC)
+    PassRefPtr<KeyboardEvent> currentKeyboardEvent() const;
+
+    void mouseDown(NSEvent*);
+    void mouseDragged(NSEvent*);
+    void mouseUp(NSEvent*);
+    void mouseMoved(NSEvent*);
+    bool keyEvent(NSEvent*);
+    bool wheelEvent(NSEvent*);
+
+    void sendFakeEventsAfterWidgetTracking(NSEvent* initiatingEvent);
+
+    void setActivationEventNumber(int num) { m_activationEventNumber = num; }
+
+    NSEvent *currentNSEvent();
+#endif
+
+private:
+    struct EventHandlerDragState {
+        RefPtr<Node> m_dragSrc; // element that may be a drag source, for the current mouse gesture
+        bool m_dragSrcIsLink;
+        bool m_dragSrcIsImage;
+        bool m_dragSrcInSelection;
+        bool m_dragSrcMayBeDHTML;
+        bool m_dragSrcMayBeUA; // Are DHTML and/or the UserAgent allowed to drag out?
+        bool m_dragSrcIsDHTML;
+        RefPtr<Clipboard> m_dragClipboard; // used on only the source side of dragging
+    };
+    static EventHandlerDragState& dragState();
+    static const double TextDragDelay;
+    
+    PassRefPtr<Clipboard> createDraggingClipboard() const;
+    
+    bool eventActivatedView(const PlatformMouseEvent&) const;
+    void selectClosestWordFromMouseEvent(const MouseEventWithHitTestResults& event);
+    void selectClosestWordOrLinkFromMouseEvent(const MouseEventWithHitTestResults& event);
+
+    bool handleMouseDoubleClickEvent(const PlatformMouseEvent&);
+
+    bool handleMousePressEvent(const MouseEventWithHitTestResults&);
+    bool handleMousePressEventSingleClick(const MouseEventWithHitTestResults&);
+    bool handleMousePressEventDoubleClick(const MouseEventWithHitTestResults&);
+    bool handleMousePressEventTripleClick(const MouseEventWithHitTestResults&);
+    bool handleMouseDraggedEvent(const MouseEventWithHitTestResults&);
+    bool handleMouseReleaseEvent(const MouseEventWithHitTestResults&);
+
+    void handleKeyboardSelectionMovement(KeyboardEvent*);
+    
+    Cursor selectCursor(const MouseEventWithHitTestResults&, Scrollbar*);
+    void setPanScrollCursor();
+
+    void hoverTimerFired(Timer<EventHandler>*);
+
+    static bool canMouseDownStartSelect(Node*);
+    static bool canMouseDragExtendSelect(Node*);
+
+    void handleAutoscroll(RenderObject*);
+    void startAutoscrollTimer();
+    void setAutoscrollRenderer(RenderObject*);
+    void autoscrollTimerFired(Timer<EventHandler>*);
+
+    void invalidateClick();
+
+    Node* nodeUnderMouse() const;
+    
+    void updateMouseEventTargetNode(Node*, const PlatformMouseEvent&, bool fireMouseOverOut);
+    void fireMouseOverOut(bool fireMouseOver = true, bool fireMouseOut = true, bool updateLastNodeUnderMouse = true);
+    
+    MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&, const PlatformMouseEvent&);
+
+    bool dispatchMouseEvent(const AtomicString& eventType, Node* target, bool cancelable, int clickCount, const PlatformMouseEvent&, bool setUnder);
+    bool dispatchDragEvent(const AtomicString& eventType, Node* target, const PlatformMouseEvent&, Clipboard*);
+
+    void freeClipboard();
+
+    bool handleDrag(const MouseEventWithHitTestResults&);
+    bool handleMouseUp(const MouseEventWithHitTestResults&);
+    void clearDragState();
+
+    bool dispatchDragSrcEvent(const AtomicString& eventType, const PlatformMouseEvent&);
+
+    bool dragHysteresisExceeded(const FloatPoint&) const;
+    bool dragHysteresisExceeded(const IntPoint&) const;
+
+    bool passMousePressEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe);
+    bool passMouseMoveEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe, HitTestResult* hoveredNode = 0);
+    bool passMouseReleaseEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe);
+
+    bool passSubframeEventToSubframe(MouseEventWithHitTestResults&, Frame* subframe, HitTestResult* hoveredNode = 0);
+
+    bool passMousePressEventToScrollbar(MouseEventWithHitTestResults&, Scrollbar*);
+
+    bool passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults&);
+    bool passWidgetMouseDownEventToWidget(RenderWidget*);
+
+    bool passMouseDownEventToWidget(Widget*);
+    bool passWheelEventToWidget(PlatformWheelEvent&, Widget*);
+
+    void defaultSpaceEventHandler(KeyboardEvent*);
+    void defaultTabEventHandler(KeyboardEvent*);
+
+    void allowDHTMLDrag(bool& flagDHTML, bool& flagUA) const;
+
+    // The following are called at the beginning of handleMouseUp and handleDrag.  
+    // If they return true it indicates that they have consumed the event.
+#if PLATFORM(MAC)
+    bool eventLoopHandleMouseUp(const MouseEventWithHitTestResults&);
+    bool eventLoopHandleMouseDragged(const MouseEventWithHitTestResults&);
+    NSView *mouseDownViewIfStillGood();
+#else
+    bool eventLoopHandleMouseUp(const MouseEventWithHitTestResults&) { return false; }
+    bool eventLoopHandleMouseDragged(const MouseEventWithHitTestResults&) { return false; }
+#endif
+
+    bool invertSenseOfTabsToLinks(KeyboardEvent*) const;
+
+    void updateSelectionForMouseDrag(Node* targetNode, const IntPoint& localPoint);
+
+    Frame* m_frame;
+
+    bool m_mousePressed;
+    RefPtr<Node> m_mousePressNode;
+
+    bool m_mouseDownMayStartSelect;
+    bool m_mouseDownMayStartDrag;
+    bool m_mouseDownWasSingleClickInSelection;
+    bool m_beganSelectingText;
+
+    IntPoint m_dragStartPos;
+
+    IntPoint m_panScrollStartPos;
+    bool m_panScrollInProgress;
+
+    Timer<EventHandler> m_hoverTimer;
+    
+    Timer<EventHandler> m_autoscrollTimer;
+    RenderObject* m_autoscrollRenderer;
+    bool m_autoscrollInProgress;
+    bool m_mouseDownMayStartAutoscroll;
+    bool m_mouseDownWasInSubframe;
+#if ENABLE(SVG)
+    bool m_svgPan;
+    RefPtr<SVGElementInstance> m_instanceUnderMouse;
+    RefPtr<SVGElementInstance> m_lastInstanceUnderMouse;
+#endif
+
+    RenderLayer* m_resizeLayer;
+
+    RefPtr<Node> m_capturingMouseEventsNode;
+    
+    RefPtr<Node> m_nodeUnderMouse;
+    RefPtr<Node> m_lastNodeUnderMouse;
+    RefPtr<Frame> m_lastMouseMoveEventSubframe;
+    RefPtr<Scrollbar> m_lastScrollbarUnderMouse;
+
+    int m_clickCount;
+    RefPtr<Node> m_clickNode;
+
+    RefPtr<Node> m_dragTarget;
+    
+    RefPtr<HTMLFrameSetElement> m_frameSetBeingResized;
+
+    IntSize m_offsetFromResizeCorner;   // in the coords of m_resizeLayer
+    
+    IntPoint m_currentMousePosition;
+    IntPoint m_mouseDownPos; // in our view's coords
+    double m_mouseDownTimestamp;
+    PlatformMouseEvent m_mouseDown;
+    
+    unsigned m_pendingFrameUnloadEventCount;
+    unsigned m_pendingFrameBeforeUnloadEventCount;
+
+#if PLATFORM(MAC)
+    NSView *m_mouseDownView;
+    bool m_sendingEventToSubview;
+    int m_activationEventNumber;
+#endif
+
+};
+
+} // namespace WebCore
+
+#endif // EventHandler_h
+