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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 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 "EventDispatcher.h"
#include "EventNames.h"
#include "Frame.h"
#include "FrameView.h"
#include "PlatformMouseEvent.h"
namespace WebCore {
PassRefPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtr<Node> relatedTarget)
{
ASSERT(event.eventType() == MouseEventMoved || event.button() != NoButton);
bool isCancelable = eventType != eventNames().mousemoveEvent;
return MouseEvent::create(eventType, true, isCancelable, view,
detail, event.globalX(), event.globalY(), event.x(), event.y(),
event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(),
relatedTarget, 0, false);
}
MouseEvent::MouseEvent()
: m_button(0)
, m_buttonDown(false)
{
}
MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtr<AbstractView> view,
int detail, int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
unsigned short button, PassRefPtr<EventTarget> relatedTarget,
PassRefPtr<Clipboard> clipboard, bool isSimulated)
: MouseRelatedEvent(eventType, canBubble, cancelable, view, detail, screenX, screenY,
pageX, pageY, ctrlKey, altKey, shiftKey, metaKey, isSimulated)
, m_button(button == (unsigned short)-1 ? 0 : button)
, m_buttonDown(button != (unsigned short)-1)
, m_relatedTarget(relatedTarget)
, m_clipboard(clipboard)
{
}
MouseEvent::~MouseEvent()
{
}
void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<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_screenX = screenX;
m_screenY = 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(clientX, clientY);
// FIXME: m_isSimulated is not set to false here.
// FIXME: m_clipboard is not set to 0 here.
}
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;
}
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.
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)
return relatedTarget() ? relatedTarget()->toNode() : 0;
return target() ? target()->toNode() : 0;
}
Node* MouseEvent::fromElement() const
{
// MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)
if (type() != eventNames().mouseoutEvent)
return relatedTarget() ? relatedTarget()->toNode() : 0;
return target() ? target()->toNode() : 0;
}
PassRefPtr<SimulatedMouseEvent> SimulatedMouseEvent::create(const AtomicString& eventType, PassRefPtr<AbstractView> view, PassRefPtr<Event> underlyingEvent)
{
return adoptRef(new SimulatedMouseEvent(eventType, view, underlyingEvent));
}
SimulatedMouseEvent::~SimulatedMouseEvent()
{
}
SimulatedMouseEvent::SimulatedMouseEvent(const AtomicString& eventType, PassRefPtr<AbstractView> view, PassRefPtr<Event> underlyingEvent)
: MouseEvent(eventType, true, true, view, 0, 0, 0, 0, 0, false, false, false, false, 0, 0, 0, true)
{
if (UIEventWithKeyState* keyStateEvent = findEventWithKeyState(underlyingEvent.get())) {
m_ctrlKey = keyStateEvent->ctrlKey();
m_altKey = keyStateEvent->altKey();
m_shiftKey = keyStateEvent->shiftKey();
m_metaKey = keyStateEvent->metaKey();
}
setUnderlyingEvent(underlyingEvent);
}
MouseEventDispatchMediator::MouseEventDispatchMediator(PassRefPtr<MouseEvent> mouseEvent)
: EventDispatchMediator(mouseEvent)
{
}
MouseEvent* MouseEventDispatchMediator::event() const
{
return static_cast<MouseEvent*>(EventDispatchMediator::event());
}
bool MouseEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
{
if (dispatcher->node()->disabled()) // Don't even send DOM events for disabled controls..
return true;
if (event()->type().isEmpty())
return false; // Shouldn't happen.
RefPtr<EventTarget> relatedTarget = dispatcher->adjustRelatedTarget(event(), event()->relatedTarget());
event()->setRelatedTarget(relatedTarget);
dispatcher->dispatchEvent(event());
bool swallowEvent = event()->defaultHandled() || event()->defaultPrevented();
// Special case: If it's a double click event, we also send the dblclick event. This is not part
// of the DOM specs, but is used for compatibility with the ondblclick="" attribute. This is treated
// as a separate event in other DOM-compliant browsers like Firefox, and so we do the same.
if (event()->type() == eventNames().clickEvent && event()->detail() == 2) {
RefPtr<MouseEvent> doubleClickEvent = MouseEvent::create();
doubleClickEvent->initMouseEvent(eventNames().dblclickEvent, event()->bubbles(), event()->cancelable(), event()->view(),
event()->detail(), event()->screenX(), event()->screenY(), event()->clientX(), event()->clientY(),
event()->ctrlKey(), event()->altKey(), event()->shiftKey(), event()->metaKey(),
event()->button(), relatedTarget);
if (event()->defaultHandled())
doubleClickEvent->setDefaultHandled();
dispatcher->dispatchEvent(doubleClickEvent);
if (doubleClickEvent->defaultHandled() || doubleClickEvent->defaultPrevented())
swallowEvent = true;
}
return swallowEvent;
}
} // namespace WebCore
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