Send got/lostpointercapture immediately if possible

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * 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.
@@ skipping 173 matching lines @@
     , m_hoverTimer(this, &EventHandler::hoverTimerFired)
     , m_cursorUpdateTimer(this, &EventHandler::cursorUpdateTimerFired)
     , m_mouseDownMayStartAutoscroll(false)
     , m_fakeMouseMoveEventTimer(this, &EventHandler::fakeMouseMoveEventTimerFired)
     , m_svgPan(false)
     , m_eventHandlerWillResetCapturingMouseEventsNode(0)
     , m_clickCount(0)
     , m_shouldOnlyFireDragOverEvent(false)
     , m_mousePositionIsUnknown(true)
     , m_mouseDownTimestamp(0)
-    , m_pointerEventManager(frame)
+    , m_pointerEventManager(new PointerEventManager(frame))
     , m_scrollManager(frame)
     , m_keyboardEventManager(frame, &m_scrollManager)
-    , m_gestureManager(frame, &m_scrollManager, &m_pointerEventManager, m_selectionController)
+    , m_gestureManager(frame, &m_scrollManager, m_pointerEventManager, m_selectionController)
     , m_activeIntervalTimer(this, &EventHandler::activeIntervalTimerFired)
 {
 }
 
 EventHandler::~EventHandler()
 {
     ASSERT(!m_fakeMouseMoveEventTimer.isActive());
 }
 
 DEFINE_TRACE(EventHandler)
@@ skipping 36 matching lines @@
     m_dragTarget = nullptr;
     m_shouldOnlyFireDragOverEvent = false;
     m_mousePositionIsUnknown = true;
     m_lastKnownMousePosition = IntPoint();
     m_lastKnownMouseGlobalPosition = IntPoint();
     m_lastMouseDownUserGestureToken.clear();
     m_mousePressNode = nullptr;
     m_mousePressed = false;
     m_capturesDragging = false;
     m_capturingMouseEventsNode = nullptr;
-    m_pointerEventManager.clear();
+    m_pointerEventManager->clear();
     m_scrollManager.clear();
     m_gestureManager.clear();
     m_mouseDownMayStartDrag = false;
     m_lastDeferredTapElement = nullptr;
     m_eventHandlerWillResetCapturingMouseEventsNode = false;
     m_mouseDownMayStartAutoscroll = false;
     m_svgPan = false;
     m_mouseDownPos = IntPoint();
     m_mouseDownTimestamp = 0;
     m_dragStartPos = LayoutPoint();
@@ skipping 739 matching lines @@
         hitType |= HitTestRequest::Active;
     } else if (onlyUpdateScrollbars) {
         // Mouse events should be treated as "read-only" if we're updating only scrollbars. This
         // means that :hover and :active freeze in the state they were in, rather than updating
         // for nodes the mouse moves while the window is not key (which will be the case if
         // onlyUpdateScrollbars is true).
         hitType |= HitTestRequest::ReadOnly;
     }
 
     // Treat any mouse move events as readonly if the user is currently touching the screen.
-    if (m_pointerEventManager.isAnyTouchActive())
+    if (m_pointerEventManager->isAnyTouchActive())
         hitType |= HitTestRequest::Active | HitTestRequest::ReadOnly;
     HitTestRequest request(hitType);
     MouseEventWithHitTestResults mev = MouseEventWithHitTestResults(mouseEvent, HitTestResult(request, LayoutPoint()));
 
     // We don't want to do a hit-test in forceLeave scenarios because there might actually be some other frame above this one at the specified co-ordinate.
     // So we must force the hit-test to fail, while still clearing hover/active state.
     if (forceLeave)
         m_frame->document()->updateHoverActiveState(request, 0);
     else
         mev = prepareMouseEvent(request, mouseEvent);
@@ skipping 425 matching lines @@
         m_lastScrollbarUnderMouse = nullptr;
     }
 
     return lastNodeUnderMouse;
 }
 
 void EventHandler::updateMouseEventTargetNodeAndSendEvents(Node* targetNode,
     const PlatformMouseEvent& mouseEvent, bool isFrameBoundaryTransition)
 {
     Node* lastNodeUnderMouse = updateMouseEventTargetNode(targetNode, mouseEvent);
-    m_pointerEventManager.sendMouseAndPossiblyPointerBoundaryEvents(
+    m_pointerEventManager->sendMouseAndPossiblyPointerBoundaryEvents(
         lastNodeUnderMouse, m_nodeUnderMouse, mouseEvent,
         isFrameBoundaryTransition);
 }
 
 WebInputEventResult EventHandler::dispatchMouseEvent(const AtomicString& eventType, Node* targetNode, int clickCount, const PlatformMouseEvent& mouseEvent)
 {
     updateMouseEventTargetNodeAndSendEvents(targetNode, mouseEvent);
     if (!m_nodeUnderMouse)
         return WebInputEventResult::NotHandled;
 
     MouseEvent* event = MouseEvent::create(eventType, m_nodeUnderMouse->document().domWindow(), mouseEvent, clickCount, nullptr);
     return toWebInputEventResult(m_nodeUnderMouse->dispatchEvent(event));
 }
 
 bool EventHandler::isPointerEventActive(int pointerId)
 {
-    return m_pointerEventManager.isActive(pointerId);
+    return m_pointerEventManager->isActive(pointerId);
 }
 
 void EventHandler::setPointerCapture(int pointerId, EventTarget* target)
 {
     // TODO(crbug.com/591387): This functionality should be per page not per frame.
-    m_pointerEventManager.setPointerCapture(pointerId, target);
+    m_pointerEventManager->setPointerCapture(pointerId, target);
 }
 
 void EventHandler::releasePointerCapture(int pointerId, EventTarget* target)
 {
-    m_pointerEventManager.releasePointerCapture(pointerId, target);
+    m_pointerEventManager->releasePointerCapture(pointerId, target);
 }
 
 void EventHandler::elementRemoved(EventTarget* target)
 {
-    m_pointerEventManager.elementRemoved(target);
+    m_pointerEventManager->elementRemoved(target);
 }
 
 // TODO(mustaq): Make PE drive ME dispatch & bookkeeping in EventHandler.
 WebInputEventResult EventHandler::updatePointerTargetAndDispatchEvents(const AtomicString& mouseEventType, Node* targetNode, int clickCount, const PlatformMouseEvent& mouseEvent)
 {
     ASSERT(mouseEventType == EventTypeNames::mousedown
         || mouseEventType == EventTypeNames::mousemove
         || mouseEventType == EventTypeNames::mouseup);
 
     Node* lastNodeUnderMouse = updateMouseEventTargetNode(targetNode, mouseEvent);
 
-    return m_pointerEventManager.sendMousePointerEvent(
+    return m_pointerEventManager->sendMousePointerEvent(
         m_nodeUnderMouse, mouseEventType, clickCount, mouseEvent, nullptr,
         lastNodeUnderMouse);
 }
 
 void EventHandler::setClickNode(Node* node)
 {
     m_clickNode = node;
 }
 
 WebInputEventResult EventHandler::handleMouseFocus(const MouseEventWithHitTestResults& targetedEvent, InputDeviceCapabilities* sourceCapabilities)
@@ skipping 1036 matching lines @@
         if (!rect.contains(roundedIntPoint(point)))
             return result;
     }
     frame->contentLayoutItem().hitTest(result);
     return result;
 }
 
 WebInputEventResult EventHandler::handleTouchEvent(const PlatformTouchEvent& event)
 {
     TRACE_EVENT0("blink", "EventHandler::handleTouchEvent");
-    return m_pointerEventManager.handleTouchEvents(event);
+    return m_pointerEventManager->handleTouchEvents(event);
 }
 
 void EventHandler::setLastKnownMousePosition(const PlatformMouseEvent& event)
 {
     m_mousePositionIsUnknown = false;
     m_lastKnownMousePosition = event.position();
     m_lastKnownMouseGlobalPosition = event.globalPosition();
 }
 
 WebInputEventResult EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, LocalFrame* subframe)
@@ skipping 38 matching lines @@
 
 FrameHost* EventHandler::frameHost() const
 {
     if (!m_frame->page())
         return nullptr;
 
     return &m_frame->page()->frameHost();
 }
 
 } // namespace blink