Extract touch handling logic from EventHandler

third_party/WebKit/Source/core/input/EventHandler.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011 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
@@ skipping 92 matching lines @@
 
 #if OS(WIN)
     void startPanScrolling(LayoutObject*);
 #endif
 
     void stopAutoscroll();
 
     void dispatchFakeMouseMoveEventSoon();
     void dispatchFakeMouseMoveEventSoonInQuad(const FloatQuad&);
 
+    static HitTestResult hitTestResultInFrame(LocalFrame*, const LayoutPoint&, HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active);
+
     HitTestResult hitTestResultAtPoint(const LayoutPoint&,
         HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active,
         const LayoutSize& padding = LayoutSize());
 
     bool mousePressed() const { return m_mousePressed; }
 
     void setCapturingMouseEventsNode(Node*); // A caller is responsible for resetting capturing node to 0.
 
     WebInputEventResult updateDragAndDrop(const PlatformMouseEvent&, DataTransfer*);
     void cancelDragAndDrop(const PlatformMouseEvent&, DataTransfer*);
@@ skipping 197 matching lines @@
         LayoutBox*,
         ScrollGranularity,
         const FloatSize& delta,
         const FloatPoint& position,
         const FloatSize& velocity,
         bool* wasRootScroller);
 
     bool isRootScroller(const Node&) const;
     void customizedScroll(const Node& startNode, ScrollState&);
 
-    HitTestResult hitTestResultInFrame(LocalFrame*, const LayoutPoint&, HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active);
-
     void invalidateClick();
 
     Node* updateMouseEventTargetNode(Node*, const PlatformMouseEvent&);
     void updateMouseEventTargetNodeAndSendEvents(Node*, const PlatformMouseEvent&, bool isFrameBoundaryTransition = false);
 
 
     MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&, const PlatformMouseEvent&);
 
     WebInputEventResult dispatchMouseEvent(const AtomicString& eventType, Node* target, int clickCount, const PlatformMouseEvent&);
 
@@ skipping 45 matching lines @@
     bool panScrollInProgress() const;
     void setLastKnownMousePosition(const PlatformMouseEvent&);
 
     bool shouldTopControlsConsumeScroll(FloatSize) const;
 
     // If the given element is a shadow host and its root has delegatesFocus=false flag,
     // slide focus to its inner element. Returns true if the resulting focus is different from
     // the given element.
     bool slideFocusOnShadowHostIfNecessary(const Element&);
 
-    void dispatchPointerEvents(const PlatformTouchEvent&, HeapVector<TouchInfo>&);
-
-    WebInputEventResult dispatchTouchEvents(const PlatformTouchEvent&, HeapVector<TouchInfo>&, bool);
-
     FrameHost* frameHost();
 
     // NOTE: If adding a new field to this class please ensure that it is
     // cleared in |EventHandler::clear()|.
 
     const Member<LocalFrame> m_frame;
 
     // Current button-press state for mouse/mouse-like-stylus.
     // TODO(crbug.com/563676): Buggy for chorded buttons.
     bool m_mousePressed;
@@ skipping 41 matching lines @@
 
     bool m_mousePositionIsUnknown;
     // The last mouse movement position this frame has seen in root frame coordinates.
     IntPoint m_lastKnownMousePosition;
     IntPoint m_lastKnownMouseGlobalPosition;
     IntPoint m_mouseDownPos; // In our view's coords.
     double m_mouseDownTimestamp;
     PlatformMouseEvent m_mouseDown;
     RefPtr<UserGestureToken> m_lastMouseDownUserGestureToken;
 
-    // The target of each active touch point indexed by the touch ID.
-    using TouchTargetMap = HeapHashMap<unsigned, Member<EventTarget>, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned>>;
-    TouchTargetMap m_targetForTouchID;
-    using TouchRegionMap = HashMap<unsigned, String, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned>>;
-    TouchRegionMap m_regionForTouchID;
-
-    // If set, the document of the active touch sequence. Unset if no touch sequence active.
-    Member<Document> m_touchSequenceDocument;
-    RefPtr<UserGestureToken> m_touchSequenceUserGestureToken;
-
-    bool m_touchPressed;
-
     PointerEventManager m_pointerEventManager;
 
     Member<Node> m_scrollGestureHandlingNode;
     bool m_lastGestureScrollOverWidget;
     // The most recent element to scroll natively during this scroll
     // sequence. Null if no native element has scrolled this scroll
     // sequence, or if the most recent element to scroll used scroll
     // customization.
     Member<Node> m_previousGestureScrolledNode;
     Member<Scrollbar> m_scrollbarHandlingScrollGesture;
 
     double m_maxMouseMovedDuration;
 
     bool m_longTapShouldInvokeContextMenu;
 
     Timer<EventHandler> m_activeIntervalTimer;
     double m_lastShowPressTimestamp;
     Member<Element> m_lastDeferredTapElement;
 
     // Only used with the ScrollCustomization runtime enabled feature.
     std::deque<int> m_currentScrollChain;
     // True iff some of the delta has been consumed for the current
     // scroll sequence in this frame, or any child frames. Only used
     // with ScrollCustomization. If some delta has been consumed, a
     // scroll which shouldn't propagate can't cause any element to
     // scroll other than the |m_previousGestureScrolledNode|.
     bool m_deltaConsumedForScrollSequence;
-
-    // True if waiting on first touch move after a touch start.
-    bool m_waitingForFirstTouchMove;
 };
 
 } // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::EventHandler::TouchInfo);
 
 #endif // EventHandler_h