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/*
* Copyright (C) 2010 Google Inc. All Rights Reserved.
* Copyright (C) 2017 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
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "config.h"
#include "EventContext.h"
#include "Document.h"
#include "FocusEvent.h"
#include "MouseEvent.h"
#include "TouchEvent.h"
namespace WebCore {
EventContext::EventContext(Node* node, EventTarget* currentTarget, EventTarget* target, int closedShadowDepth)
: m_node { node }
, m_currentTarget { currentTarget }
, m_target { target }
, m_closedShadowDepth { closedShadowDepth }
{
ASSERT(!isUnreachableNode(m_target.get()));
}
EventContext::~EventContext() = default;
void EventContext::handleLocalEvents(Event& event, EventInvokePhase phase) const
{
event.setTarget(m_target.get());
event.setCurrentTarget(m_currentTarget.get());
// FIXME: Consider merging handleLocalEvents and fireEventListeners.
if (m_node)
m_node->handleLocalEvents(event, phase);
else
m_currentTarget->fireEventListeners(event, phase);
}
bool EventContext::isMouseOrFocusEventContext() const
{
return false;
}
bool EventContext::isTouchEventContext() const
{
return false;
}
MouseOrFocusEventContext::MouseOrFocusEventContext(Node& node, EventTarget* currentTarget, EventTarget* target, int closedShadowDepth)
: EventContext(&node, currentTarget, target, closedShadowDepth)
{
}
MouseOrFocusEventContext::~MouseOrFocusEventContext() = default;
void MouseOrFocusEventContext::handleLocalEvents(Event& event, EventInvokePhase phase) const
{
if (m_relatedTarget)
event.setRelatedTarget(*m_relatedTarget);
EventContext::handleLocalEvents(event, phase);
}
bool MouseOrFocusEventContext::isMouseOrFocusEventContext() const
{
return true;
}
#if ENABLE(TOUCH_EVENTS)
TouchEventContext::TouchEventContext(Node& node, EventTarget* currentTarget, EventTarget* target, int closedShadowDepth)
: EventContext(&node, currentTarget, target, closedShadowDepth)
, m_touches(TouchList::create())
, m_targetTouches(TouchList::create())
, m_changedTouches(TouchList::create())
{
}
TouchEventContext::~TouchEventContext() = default;
void TouchEventContext::handleLocalEvents(Event& event, EventInvokePhase phase) const
{
checkReachability(m_touches);
checkReachability(m_targetTouches);
checkReachability(m_changedTouches);
auto& touchEvent = downcast<TouchEvent>(event);
touchEvent.setTouches(m_touches.ptr());
touchEvent.setTargetTouches(m_targetTouches.ptr());
touchEvent.setChangedTouches(m_changedTouches.ptr());
EventContext::handleLocalEvents(event, phase);
}
bool TouchEventContext::isTouchEventContext() const
{
return true;
}
#if ASSERT_ENABLED
void TouchEventContext::checkReachability(const Ref<TouchList>& touchList) const
{
size_t length = touchList->length();
for (size_t i = 0; i < length; ++i)
ASSERT(!isUnreachableNode(downcast<Node>(touchList->item(i)->target())));
}
#endif // ASSERT_ENABLED
#endif // ENABLE(TOUCH_EVENTS)
}