Pointerevent capture APIs

third_party/WebKit/Source/core/events/PointerEventFactory.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/events/PointerEventFactory.h"
 
 namespace blink {
 
 namespace {
 
@@ skipping 72 matching lines @@
     AtomicString pointerEventName = pointerEventNameForMouseEventName(mouseEventName);
     unsigned buttons = MouseEvent::platformModifiersToButtons(mouseEvent.getModifiers());
     PointerEventInit pointerEventInit;
 
     setIdTypeButtons(pointerEventInit, mouseEvent.pointerProperties(), buttons);
 
     pointerEventInit.setScreenX(mouseEvent.globalPosition().x());
     pointerEventInit.setScreenY(mouseEvent.globalPosition().y());
     pointerEventInit.setClientX(mouseEvent.position().x());
     pointerEventInit.setClientY(mouseEvent.position().y());
+
     if (pointerEventName == EventTypeNames::pointerdown
         || pointerEventName == EventTypeNames::pointerup) {
         pointerEventInit.setButton(mouseEvent.button());
     } else {
         // TODO(crbug.com/587955): We are setting NoButton for transition
         // pointerevents should be resolved as part of this bug
         pointerEventInit.setButton(NoButton);
     }
     pointerEventInit.setPressure(getPointerEventPressure(
         mouseEvent.pointerProperties().force, pointerEventInit.buttons()));
@@ skipping 156 matching lines @@
     // We do not handle the overflow of m_currentId as it should be very rare
     int mappedId = m_currentId++;
     if (!m_idCount[type])
         m_primaryId[type] = mappedId;
     m_idCount[type]++;
     m_pointerIncomingIdMapping.add(p, mappedId);
     m_pointerIdMapping.add(mappedId, PointerAttributes(p, isActiveButtons));
     return mappedId;
 }
 
-void PointerEventFactory::remove(
+bool PointerEventFactory::remove(
     const PassRefPtrWillBeRawPtr<PointerEvent> pointerEvent)
 {
     int mappedId = pointerEvent->pointerId();
     // Do not remove mouse pointer id as it should always be there
     if (mappedId == s_mouseId || !m_pointerIdMapping.contains(mappedId))
-        return;
+        return false;
 
     IncomingId p = m_pointerIdMapping.get(mappedId).incomingId;
     int type = p.pointerType();
     m_pointerIdMapping.remove(mappedId);
     m_pointerIncomingIdMapping.remove(p);
     if (m_primaryId[type] == mappedId)
         m_primaryId[type] = PointerEventFactory::s_invalidId;
     m_idCount[type]--;
+    return true;
 }
 
 bool PointerEventFactory::isPrimary(int mappedId) const
 {
     if (!m_pointerIdMapping.contains(mappedId))
         return false;
 
     IncomingId p = m_pointerIdMapping.get(mappedId).incomingId;
     return m_primaryId[p.pointerType()] == mappedId;
 }
 
 bool PointerEventFactory::isActive(const int pointerId)
 {
     return m_pointerIdMapping.contains(pointerId);
 }
 
 bool PointerEventFactory::isActiveButtonsState(const int pointerId)
 {
     return m_pointerIdMapping.contains(pointerId)
         && m_pointerIdMapping.get(pointerId).isActiveButtons;
 }
 
 } // namespace blink