Extract more of the mouse logic from EventHandler

third_party/WebKit/Source/core/input/TouchEventManager.cpp

 // 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.
 
 #include "core/input/TouchEventManager.h"
 
 #include "core/dom/Document.h"
 #include "core/events/TouchEvent.h"
 #include "core/frame/Deprecation.h"
 #include "core/frame/EventHandlerRegistry.h"
@@ skipping 70 matching lines @@
   // Set of targets involved in m_touches.
   EventTargetSet m_targets;
 };
 
 }  // namespace
 
 TouchEventManager::TouchEventManager(LocalFrame* frame) : m_frame(frame) {
   clear();
 }
 
+void TouchEventManager::clear() {
+  m_touchSequenceDocument.clear();
+  m_touchSequenceUserGestureToken.clear();
+  m_targetForTouchID.clear();
+  m_regionForTouchID.clear();
+  m_touchPressed = false;
+  m_touchScrollStarted = false;
+  m_currentEvent = PlatformEvent::NoType;
+}
+
+DEFINE_TRACE(TouchEventManager) {
+  visitor->trace(m_frame);
+  visitor->trace(m_touchSequenceDocument);
+  visitor->trace(m_targetForTouchID);
+}
+
 WebInputEventResult TouchEventManager::dispatchTouchEvents(
     const PlatformTouchEvent& event,
     const HeapVector<TouchInfo>& touchInfos,
     bool allTouchesReleased) {
   // Build up the lists to use for the |touches|, |targetTouches| and
   // |changedTouches| attributes in the JS event. See
   // http://www.w3.org/TR/touch-events/#touchevent-interface for how these
   // lists fit together.
 
   // Holds the complete set of touches on the screen.
@@ skipping 418 matching lines @@
           m_touchSequenceUserGestureToken.release(), callback));
     else
       gestureIndicator = wrapUnique(
           new UserGestureIndicator(DefinitelyProcessingUserGesture, callback));
     m_touchSequenceUserGestureToken = UserGestureIndicator::currentToken();
   }
 
   return dispatchTouchEvents(event, touchInfos, allTouchesReleased);
 }
 
-void TouchEventManager::clear() {
-  m_touchSequenceDocument.clear();
-  m_touchSequenceUserGestureToken.clear();
-  m_targetForTouchID.clear();
-  m_regionForTouchID.clear();
-  m_touchPressed = false;
-  m_touchScrollStarted = false;
-  m_currentEvent = PlatformEvent::NoType;
-}
-
 bool TouchEventManager::isAnyTouchActive() const {
   return m_touchPressed;
 }
 
-DEFINE_TRACE(TouchEventManager) {
-  visitor->trace(m_frame);
-  visitor->trace(m_touchSequenceDocument);
-  visitor->trace(m_targetForTouchID);
-}
 
 void TouchEventManager::userGestureUtilized() {
   // This is invoked for UserGestureIndicators created in TouchEventManger::handleTouchEvent which perhaps
   // represent touch actions which shouldn't be considered a user-gesture.  Trigger a UseCounter based
   // on the touch event that's currently being dispatched.
   UseCounter::Feature feature;
 
   switch (m_currentEvent) {
     case PlatformEvent::TouchStart:
       feature = UseCounter::TouchStartUserGestureUtilized;
       break;
     case PlatformEvent::TouchMove:
       feature = UseCounter::TouchMoveUserGestureUtilized;
       break;
     case PlatformEvent::TouchEnd:
       feature = UseCounter::TouchEndDuringScrollUserGestureUtilized;
       break;
     default:
       NOTREACHED();
       return;
   }
   Deprecation::countDeprecation(m_frame, feature);
 }
 
 }  // namespace blink