blob: 88c4381e9a7bf6a83a365eb15a1725ced283e291 [file] [log] [blame]
/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2003-2017 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "Event.h"
#include "DOMWindow.h"
#include "Document.h"
#include "EventNames.h"
#include "EventPath.h"
#include "EventTarget.h"
#include "Performance.h"
#include "UserGestureIndicator.h"
#include "WorkerGlobalScope.h"
namespace WebCore {
Event::Event(IsTrusted isTrusted)
: m_isTrusted(isTrusted == IsTrusted::Yes)
, m_createTime(MonotonicTime::now())
{
}
Event::Event(const AtomicString& eventType, bool canBubbleArg, bool cancelableArg)
: m_type(eventType)
, m_isInitialized(true)
, m_canBubble(canBubbleArg)
, m_cancelable(cancelableArg)
, m_isTrusted(true)
, m_createTime(MonotonicTime::now())
{
}
Event::Event(const AtomicString& eventType, bool canBubbleArg, bool cancelableArg, MonotonicTime timestamp)
: m_type(eventType)
, m_isInitialized(true)
, m_canBubble(canBubbleArg)
, m_cancelable(cancelableArg)
, m_isTrusted(true)
, m_createTime(timestamp)
{
}
Event::Event(const AtomicString& eventType, const EventInit& initializer, IsTrusted isTrusted)
: m_type(eventType)
, m_isInitialized(true)
, m_canBubble(initializer.bubbles)
, m_cancelable(initializer.cancelable)
, m_composed(initializer.composed)
, m_isTrusted(isTrusted == IsTrusted::Yes)
, m_createTime(MonotonicTime::now())
{
}
Event::~Event() = default;
Ref<Event> Event::create(const AtomicString& type, bool canBubble, bool cancelable)
{
return adoptRef(*new Event(type, canBubble, cancelable));
}
Ref<Event> Event::createForBindings()
{
return adoptRef(*new Event);
}
Ref<Event> Event::create(const AtomicString& type, const EventInit& initializer, IsTrusted isTrusted)
{
return adoptRef(*new Event(type, initializer, isTrusted));
}
void Event::initEvent(const AtomicString& eventTypeArg, bool canBubbleArg, bool cancelableArg)
{
if (isBeingDispatched())
return;
m_isInitialized = true;
m_propagationStopped = false;
m_immediatePropagationStopped = false;
m_wasCanceled = false;
m_isTrusted = false;
m_target = nullptr;
m_type = eventTypeArg;
m_canBubble = canBubbleArg;
m_cancelable = cancelableArg;
m_underlyingEvent = nullptr;
}
bool Event::composed() const
{
if (m_composed)
return true;
// http://w3c.github.io/webcomponents/spec/shadow/#scoped-flag
if (!isTrusted())
return false;
return m_type == eventNames().inputEvent
|| m_type == eventNames().textInputEvent
|| m_type == eventNames().DOMActivateEvent
|| isCompositionEvent()
|| isClipboardEvent()
|| isFocusEvent()
|| isKeyboardEvent()
|| isMouseEvent()
|| isTouchEvent()
|| isInputEvent();
}
void Event::setTarget(RefPtr<EventTarget>&& target)
{
if (m_target == target)
return;
m_target = WTFMove(target);
if (m_target)
receivedTarget();
}
void Event::setCurrentTarget(EventTarget* currentTarget)
{
m_currentTarget = currentTarget;
}
Vector<EventTarget*> Event::composedPath() const
{
if (!m_eventPath)
return Vector<EventTarget*>();
return m_eventPath->computePathUnclosedToTarget(*m_currentTarget);
}
void Event::setUnderlyingEvent(Event* underlyingEvent)
{
// Prohibit creation of a cycle by doing nothing if a cycle would be created.
for (Event* event = underlyingEvent; event; event = event->underlyingEvent()) {
if (event == this)
return;
}
m_underlyingEvent = underlyingEvent;
}
DOMHighResTimeStamp Event::timeStampForBindings(ScriptExecutionContext& context) const
{
Performance* performance = nullptr;
if (is<WorkerGlobalScope>(context))
performance = &downcast<WorkerGlobalScope>(context).performance();
else if (auto* window = downcast<Document>(context).domWindow())
performance = window->performance();
if (!performance)
return 0;
return performance->relativeTimeFromTimeOriginInReducedResolution(m_createTime);
}
void Event::resetBeforeDispatch()
{
m_defaultHandled = false;
}
void Event::resetAfterDispatch()
{
m_eventPath = nullptr;
m_currentTarget = nullptr;
m_eventPhase = NONE;
m_propagationStopped = false;
m_immediatePropagationStopped = false;
}
} // namespace WebCore