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/*
* 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) 2003-2016 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 "MouseEvent.h"
#include "DataTransfer.h"
#include "EventNames.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLIFrameElement.h"
#include "PlatformMouseEvent.h"
#include <wtf/CurrentTime.h>
namespace WebCore {
Ref<MouseEvent> MouseEvent::create(const AtomicString& type, const MouseEventInit& initializer, IsTrusted isTrusted)
{
return adoptRef(*new MouseEvent(type, initializer, isTrusted));
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, DOMWindow* view, const PlatformMouseEvent& event, int detail, Node* relatedTarget)
{
bool isMouseEnterOrLeave = eventType == eventNames().mouseenterEvent || eventType == eventNames().mouseleaveEvent;
bool isCancelable = eventType != eventNames().mousemoveEvent && !isMouseEnterOrLeave;
bool canBubble = !isMouseEnterOrLeave;
return MouseEvent::create(eventType, canBubble, isCancelable, event.timestamp(), view,
detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
#if ENABLE(POINTER_LOCK)
event.movementDelta().x(), event.movementDelta().y(),
#endif
event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(),
relatedTarget, event.force(), event.syntheticClickType());
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& type, bool canBubble, bool cancelable, double timestamp, DOMWindow* view, int detail, int screenX, int screenY, int pageX, int pageY,
#if ENABLE(POINTER_LOCK)
int movementX, int movementY,
#endif
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* dataTransfer, bool isSimulated)
{
return adoptRef(*new MouseEvent(type, canBubble, cancelable, timestamp, view,
detail, { screenX, screenY }, { pageX, pageY },
#if ENABLE(POINTER_LOCK)
{ movementX, movementY },
#endif
ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget, force, syntheticClickType, dataTransfer, isSimulated));
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, bool canBubble, bool cancelable, DOMWindow* view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short syntheticClickType, EventTarget* relatedTarget)
{
return adoptRef(*new MouseEvent(eventType, canBubble, cancelable, view, detail, { screenX, screenY }, { clientX, clientY }, ctrlKey, altKey, shiftKey, metaKey, button, syntheticClickType, relatedTarget));
}
MouseEvent::MouseEvent()
{
}
MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, double timestamp, DOMWindow* view, int detail, const IntPoint& screenLocation, const IntPoint& windowLocation,
#if ENABLE(POINTER_LOCK)
const IntPoint& movementDelta,
#endif
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* dataTransfer, bool isSimulated)
: MouseRelatedEvent(eventType, canBubble, cancelable, timestamp, view, detail, screenLocation, windowLocation,
#if ENABLE(POINTER_LOCK)
movementDelta,
#endif
ctrlKey, altKey, shiftKey, metaKey, isSimulated)
, m_button(button == (unsigned short)-1 ? 0 : button)
, m_syntheticClickType(button == (unsigned short)-1 ? 0 : syntheticClickType)
, m_buttonDown(button != (unsigned short)-1)
, m_relatedTarget(relatedTarget)
, m_force(force)
, m_dataTransfer(dataTransfer)
{
}
MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, DOMWindow* view, int detail, const IntPoint& screenLocation, const IntPoint& clientLocation, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short syntheticClickType, EventTarget* relatedTarget)
: MouseRelatedEvent(eventType, canBubble, cancelable, WTF::currentTime(), view, detail, screenLocation, { },
#if ENABLE(POINTER_LOCK)
{ },
#endif
ctrlKey, altKey, shiftKey, metaKey, false)
, m_button(button == (unsigned short)-1 ? 0 : button)
, m_syntheticClickType(button == (unsigned short)-1 ? 0 : syntheticClickType)
, m_buttonDown(button != (unsigned short)-1)
, m_relatedTarget(relatedTarget)
{
initCoordinates(clientLocation);
}
MouseEvent::MouseEvent(const AtomicString& eventType, const MouseEventInit& initializer, IsTrusted isTrusted)
: MouseRelatedEvent(eventType, initializer, isTrusted)
, m_button(initializer.button == (unsigned short)-1 ? 0 : initializer.button)
, m_buttonDown(initializer.button != (unsigned short)-1)
, m_relatedTarget(initializer.relatedTarget)
{
initCoordinates({ initializer.clientX, initializer.clientY });
}
MouseEvent::~MouseEvent()
{
}
void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, DOMWindow* view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, EventTarget* relatedTarget)
{
if (dispatched())
return;
initUIEvent(type, canBubble, cancelable, view, detail);
m_screenLocation = IntPoint(screenX, screenY);
m_ctrlKey = ctrlKey;
m_altKey = altKey;
m_shiftKey = shiftKey;
m_metaKey = metaKey;
m_button = button == (unsigned short)-1 ? 0 : button;
m_syntheticClickType = 0;
m_buttonDown = button != (unsigned short)-1;
m_relatedTarget = relatedTarget;
initCoordinates(IntPoint(clientX, clientY));
// FIXME: m_isSimulated is not set to false here.
// FIXME: m_dataTransfer is not set to 0 here.
}
EventInterface MouseEvent::eventInterface() const
{
return MouseEventInterfaceType;
}
bool MouseEvent::isMouseEvent() const
{
return true;
}
bool MouseEvent::isDragEvent() const
{
// This function is only used to decide to return nullptr for dataTransfer even when m_dataTransfer is non-null.
// FIXME: Is that really valuable? Why will m_dataTransfer be non-null but we need to return null for dataTransfer?
// Quite peculiar to decide based on the type string; may have been be provided by call to JavaScript constructor.
auto& type = this->type();
return type == eventNames().dragEvent
|| type == eventNames().dragendEvent
|| type == eventNames().dragenterEvent
|| type == eventNames().dragleaveEvent
|| type == eventNames().dragoverEvent
|| type == eventNames().dragstartEvent
|| type == eventNames().dropEvent;
}
bool MouseEvent::canTriggerActivationBehavior(const Event& event)
{
return event.type() == eventNames().clickEvent && (!is<MouseEvent>(event) || downcast<MouseEvent>(event).button() != RightButton);
}
int MouseEvent::which() const
{
// For the DOM, the return values for left, middle and right mouse buttons are 0, 1, 2, respectively.
// For the Netscape "which" property, the return values for left, middle and right mouse buttons are 1, 2, 3, respectively.
// So we must add 1.
if (!m_buttonDown)
return 0;
return m_button + 1;
}
Node* MouseEvent::toElement() const
{
// MSIE extension - "the object toward which the user is moving the mouse pointer"
if (type() == eventNames().mouseoutEvent || type() == eventNames().mouseleaveEvent) {
EventTarget* relatedTarget = this->relatedTarget();
return relatedTarget ? relatedTarget->toNode() : nullptr;
}
return target() ? target()->toNode() : nullptr;
}
Node* MouseEvent::fromElement() const
{
// MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)
if (type() != eventNames().mouseoutEvent && type() != eventNames().mouseleaveEvent) {
EventTarget* relatedTarget = this->relatedTarget();
return relatedTarget ? relatedTarget->toNode() : nullptr;
}
return target() ? target()->toNode() : nullptr;
}
} // namespace WebCore
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