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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, 2005, 2006, 2008, 2013 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::createForBindings(const AtomicString& type, const MouseEventInit& initializer)
{
return adoptRef(*new MouseEvent(type, initializer));
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, AbstractView* view, const PlatformMouseEvent& event, int detail, PassRefPtr<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());
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& type, bool canBubble, bool cancelable, double timestamp, AbstractView* 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, PassRefPtr<EventTarget> relatedTarget, double force)
{
return MouseEvent::create(type, canBubble, cancelable, timestamp, view,
detail, screenX, screenY, pageX, pageY,
#if ENABLE(POINTER_LOCK)
movementX, movementY,
#endif
ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget, force, 0, false);
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& type, bool canBubble, bool cancelable, double timestamp, AbstractView* 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, PassRefPtr<EventTarget> relatedTarget, double force, PassRefPtr<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, dataTransfer, isSimulated));
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, bool canBubble, bool cancelable, AbstractView* view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, PassRefPtr<EventTarget> relatedTarget)
{
return adoptRef(*new MouseEvent(eventType, canBubble, cancelable, view, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget));
}
MouseEvent::MouseEvent()
: m_button(0)
, m_buttonDown(false)
{
}
MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, double timestamp, AbstractView* 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, PassRefPtr<EventTarget> relatedTarget, double force,
PassRefPtr<DataTransfer> dataTransfer, bool isSimulated)
: MouseRelatedEvent(eventType, canBubble, cancelable, timestamp, view, detail, IntPoint(screenX, screenY),
IntPoint(pageX, pageY),
#if ENABLE(POINTER_LOCK)
IntPoint(movementX, movementY),
#endif
ctrlKey, altKey, shiftKey, metaKey, isSimulated)
, m_button(button == (unsigned short)-1 ? 0 : button)
, m_buttonDown(button != (unsigned short)-1)
, m_relatedTarget(relatedTarget)
, m_force(force)
, m_dataTransfer(dataTransfer)
{
}
MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, AbstractView* view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, PassRefPtr<EventTarget> relatedTarget)
: MouseRelatedEvent(eventType, canBubble, cancelable, WTF::currentTime(), view, detail, IntPoint(screenX, screenY), IntPoint(0, 0),
#if ENABLE(POINTER_LOCK)
IntPoint(0, 0),
#endif
ctrlKey, altKey, shiftKey, metaKey, false)
, m_button(button == (unsigned short)-1 ? 0 : button)
, m_buttonDown(button != (unsigned short)-1)
, m_relatedTarget(relatedTarget)
{
initCoordinates(IntPoint(clientX, clientY));
}
MouseEvent::MouseEvent(const AtomicString& eventType, const MouseEventInit& initializer)
: MouseRelatedEvent(eventType, initializer)
, m_button(initializer.button == (unsigned short)-1 ? 0 : initializer.button)
, m_buttonDown(initializer.button != (unsigned short)-1)
, m_relatedTarget(initializer.relatedTarget)
, m_dataTransfer(0 /* dataTransfer */)
{
initCoordinates(IntPoint(initializer.clientX, initializer.clientY));
}
MouseEvent::~MouseEvent()
{
}
void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, AbstractView* view,
int detail, int screenX, int screenY, int clientX, int clientY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
unsigned short button, PassRefPtr<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_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
{
const AtomicString& t = type();
return t == eventNames().dragenterEvent || t == eventNames().dragoverEvent || t == eventNames().dragleaveEvent || t == eventNames().dropEvent
|| t == eventNames().dragstartEvent|| t == eventNames().dragEvent || t == eventNames().dragendEvent;
}
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;
}
// FIXME: Fix positioning. e.g. We need to consider border/padding.
// https://bugs.webkit.org/show_bug.cgi?id=93696
inline static int adjustedClientX(int innerClientX, HTMLIFrameElement* iframe, FrameView* frameView)
{
return iframe->offsetLeft() - frameView->scrollX() + innerClientX;
}
inline static int adjustedClientY(int innerClientY, HTMLIFrameElement* iframe, FrameView* frameView)
{
return iframe->offsetTop() - frameView->scrollY() + innerClientY;
}
Ref<Event> MouseEvent::cloneFor(HTMLIFrameElement* iframe) const
{
ASSERT(iframe);
Frame* frame = iframe->document().frame();
FrameView* frameView = frame ? frame->view() : nullptr;
Ref<MouseEvent> clonedMouseEvent = MouseEvent::create(type(), bubbles(), cancelable(),
iframe->document().defaultView(),
detail(), screenX(), screenY(),
frameView ? adjustedClientX(clientX(), iframe, frameView) : 0,
frameView ? adjustedClientY(clientY(), iframe, frameView) : 0,
ctrlKey(), altKey(), shiftKey(), metaKey(),
button(),
// Nullifies relatedTarget.
0);
clonedMouseEvent->setForce(force());
return WTFMove(clonedMouseEvent);
}
} // namespace WebCore
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