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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 "EventNames.h"
#include "FocusEvent.h"
#include "HTMLFieldSetElement.h"
#include "HTMLFormElement.h"
#include "LocalDOMWindow.h"
#include "MouseEvent.h"
#include "TouchEvent.h"
namespace WebCore {
EventContext::~EventContext() = default;
void EventContext::handleLocalEvents(Event& event, EventInvokePhase phase) const
{
event.setTarget(m_target.get());
event.setCurrentTarget(m_currentTarget.get(), m_currentTargetIsInShadowTree);
if (m_relatedTargetIsSet) {
ASSERT(!m_relatedTarget || m_type == Type::MouseOrFocus);
event.setRelatedTarget(m_relatedTarget.copyRef());
}
#if ENABLE(TOUCH_EVENTS)
if (m_type == Type::Touch) {
#if ASSERT_ENABLED
auto checkReachability = [&](const Ref<TouchList>& touchList) {
size_t length = touchList->length();
for (size_t i = 0; i < length; ++i)
ASSERT(!isUnreachableNode(downcast<Node>(touchList->item(i)->target())));
};
checkReachability(*m_touches);
checkReachability(*m_targetTouches);
checkReachability(*m_changedTouches);
#endif
auto& touchEvent = downcast<TouchEvent>(event);
touchEvent.setTouches(m_touches.get());
touchEvent.setTargetTouches(m_targetTouches.get());
touchEvent.setChangedTouches(m_changedTouches.get());
}
#endif
if (!m_node || UNLIKELY(m_type == Type::Window)) {
m_currentTarget->fireEventListeners(event, phase);
return;
}
if (UNLIKELY(m_contextNodeIsFormElement)) {
ASSERT(is<HTMLFormElement>(*m_node));
auto& eventNames = WebCore::eventNames();
if ((event.type() == eventNames.submitEvent || event.type() == eventNames.resetEvent)
&& event.eventPhase() != Event::CAPTURING_PHASE && event.target() != m_node && is<Node>(event.target())) {
event.stopPropagation();
return;
}
}
if (!m_node->hasEventTargetData())
return;
if (event.isTrusted() && is<Element>(m_node) && downcast<Element>(*m_node).isDisabledFormControl() && event.isMouseEvent() && !event.isWheelEvent() && !m_node->document().settings().sendMouseEventsToDisabledFormControlsEnabled())
return;
m_node->fireEventListeners(event, phase);
}
#if ENABLE(TOUCH_EVENTS)
void EventContext::initializeTouchLists()
{
m_touches = TouchList::create();
m_targetTouches = TouchList::create();
m_changedTouches = TouchList::create();
}
#endif // ENABLE(TOUCH_EVENTS)
#if ASSERT_ENABLED
bool EventContext::isUnreachableNode(EventTarget* target) const
{
// FIXME: Checks also for SVG elements.
return is<Node>(target) && !downcast<Node>(*target).isSVGElement() && m_node && m_node->isClosedShadowHidden(downcast<Node>(*target));
}
#endif
}
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