Extract more of the mouse logic from EventHandler

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PointerEventManager_h
 #define PointerEventManager_h
 
 #include "core/CoreExport.h"
 #include "core/events/PointerEvent.h"
 #include "core/events/PointerEventFactory.h"
@@ skipping 15 matching lines @@
     WTF_MAKE_NONCOPYABLE(PointerEventManager);
 public:
     explicit PointerEventManager(LocalFrame*, MouseEventManager*);
     DECLARE_TRACE();
 
     // Sends the mouse pointer events and the boundary events
     // that it may cause. It also sends the compat mouse events
     // and sets the newNodeUnderMouse if the capturing is set
     // in this function.
     WebInputEventResult sendMousePointerEvent(
-        Node* target, const AtomicString& type,
-        int clickCount, const PlatformMouseEvent&,
-        Node* lastNodeUnderMouse,
-        Node** newNodeUnderMouse);
+        Node* target, const AtomicString& type, const PlatformMouseEvent&);
 
     WebInputEventResult handleTouchEvents(
         const PlatformTouchEvent&);
 
-    // Sends boundary events mouseout/leave/over/enter to the
-    // corresponding targets. This function sends pointerout/leave/over/enter
-    // only when isFrameBoundaryTransition is true which indicates the
-    // transition is over the document boundary and not only the elements border
-    // inside the document. If isFrameBoundaryTransition is false,
-    // then the event is a compatibility event like those created by touch
-    // and in that case the corresponding pointer events will be handled by
-    // sendTouchPointerEvent for example and there is no need to send pointer
-    // boundary events. Note that normal mouse events (e.g. mousemove/down/up)
+    // Sends boundary events pointerout/leave/over/enter and
+    // mouseout/leave/over/enter to the corresponding targets.
+    // inside the document. This functions handles the cases that pointer is
+    // leaving a frame. Note that normal mouse events (e.g. mousemove/down/up)
     // and their corresponding boundary events will be handled altogether by
     // sendMousePointerEvent function.
-    void sendMouseAndPossiblyPointerBoundaryEvents(
-        Node* exitedNode,
+    void sendMouseAndPointerBoundaryEvents(
         Node* enteredNode,
-        const PlatformMouseEvent&,
-        bool isFrameBoundaryTransition);
+        const PlatformMouseEvent&);
 
     // Resets the internal state of this object.
     void clear();
 
     void elementRemoved(EventTarget*);
 
     void setPointerCapture(int, EventTarget*);
     void releasePointerCapture(int, EventTarget*);
 
     // See Element::hasPointerCapture(int).
@@ skipping 86 matching lines @@
     void processPendingPointerCapture(PointerEvent*);
 
     // Processes the capture state of a pointer, updates node under
     // pointer, and sends corresponding boundary events for pointer if
     // setPointerPosition is true. It also sends corresponding boundary events
     // for mouse if sendMouseEvent is true.
     // Returns the target that the pointer event is supposed to be fired at.
     EventTarget* processCaptureAndPositionOfPointerEvent(
         PointerEvent*,
         EventTarget* hitTestTarget,
-        EventTarget* lastNodeUnderMouse = nullptr,
         const PlatformMouseEvent& = PlatformMouseEvent(),
-        bool sendMouseEvent = false,
-        bool setPointerPosition = true);
+        bool sendMouseEvent = false);
 
     void removeTargetFromPointerCapturingMapping(
         PointerCapturingMap&, const EventTarget*);
     EventTarget* getEffectiveTargetForPointerEvent(
         EventTarget*, int);
     EventTarget* getCapturingNode(int);
     void removePointer(PointerEvent*);
     WebInputEventResult dispatchPointerEvent(
         EventTarget*,
         PointerEvent*,
@@ skipping 32 matching lines @@
     PointerCapturingMap m_pendingPointerCaptureTarget;
 
     PointerEventFactory m_pointerEventFactory;
     Member<TouchEventManager> m_touchEventManager;
     Member<MouseEventManager> m_mouseEventManager;
 };
 
 } // namespace blink
 
 #endif // PointerEventManager_h