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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 "EventNames.h"
#include "HTMLIFrameElement.h"
#include "JSDOMConvertInterface.h"
#include "JSDOMConvertNullable.h"
#include "JSEventTarget.h"
#include "JSEventTargetCustom.h"
#include "LocalFrame.h"
#include "LocalFrameView.h"
#include "PlatformMouseEvent.h"
#include "RuntimeApplicationChecks.h"
#include <JavaScriptCore/CallFrame.h>
#include <JavaScriptCore/JSGlobalObjectInlines.h>
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(MouseEvent);
using namespace JSC;
Ref<MouseEvent> MouseEvent::create(const AtomString& type, const MouseEventInit& initializer)
{
return adoptRef(*new MouseEvent(type, initializer));
}
Ref<MouseEvent> MouseEvent::create(const AtomString& eventType, RefPtr<WindowProxy>&& view, const PlatformMouseEvent& event, int detail, Node* relatedTarget)
{
auto& eventNames = WebCore::eventNames();
bool isMouseEnterOrLeave = eventType == eventNames.mouseenterEvent || eventType == eventNames.mouseleaveEvent;
auto isCancelable = !isMouseEnterOrLeave ? IsCancelable::Yes : IsCancelable::No;
auto canBubble = !isMouseEnterOrLeave ? CanBubble::Yes : CanBubble::No;
auto isComposed = !isMouseEnterOrLeave ? IsComposed::Yes : IsComposed::No;
return MouseEvent::create(eventType, canBubble, isCancelable, isComposed, event.timestamp().approximateMonotonicTime(), WTFMove(view), detail,
event.globalPosition(), event.position(), event.movementDelta().x(), event.movementDelta().y(),
event.modifiers(), event.button(), event.buttons(), relatedTarget, event.force(), event.syntheticClickType());
}
Ref<MouseEvent> MouseEvent::create(const AtomString& type, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
const IntPoint& screenLocation, const IntPoint& windowLocation, double movementX, double movementY, OptionSet<Modifier> modifiers, short button, unsigned short buttons,
EventTarget* relatedTarget, double force, SyntheticClickType syntheticClickType, IsSimulated isSimulated, IsTrusted isTrusted)
{
return adoptRef(*new MouseEvent(type, canBubble, isCancelable, isComposed, timestamp, WTFMove(view), detail,
screenLocation, windowLocation, movementX, movementY, modifiers, button, buttons, relatedTarget, force, syntheticClickType, isSimulated, isTrusted));
}
Ref<MouseEvent> MouseEvent::create(const AtomString& eventType, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed, RefPtr<WindowProxy>&& view, int detail,
int screenX, int screenY, int clientX, int clientY, OptionSet<Modifier> modifiers, short button, unsigned short buttons,
SyntheticClickType syntheticClickType, EventTarget* relatedTarget)
{
return adoptRef(*new MouseEvent(eventType, canBubble, isCancelable, isComposed, WTFMove(view), detail, { screenX, screenY }, { clientX, clientY }, 0, 0, modifiers, button, buttons, syntheticClickType, relatedTarget));
}
MouseEvent::MouseEvent() = default;
MouseEvent::MouseEvent(const AtomString& eventType, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed,
MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
const IntPoint& screenLocation, const IntPoint& windowLocation, double movementX, double movementY, OptionSet<Modifier> modifiers, short button, unsigned short buttons,
EventTarget* relatedTarget, double force, SyntheticClickType syntheticClickType, IsSimulated isSimulated, IsTrusted isTrusted)
: MouseRelatedEvent(eventType, canBubble, isCancelable, isComposed, timestamp, WTFMove(view), detail, screenLocation, windowLocation, movementX, movementY, modifiers, isSimulated, isTrusted)
, m_button(button == -2 ? 0 : button)
, m_buttons(buttons)
, m_syntheticClickType(button == -2 ? SyntheticClickType::NoTap : syntheticClickType)
, m_buttonDown(button != -2)
, m_relatedTarget(relatedTarget)
, m_force(force)
{
}
MouseEvent::MouseEvent(const AtomString& eventType, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed,
RefPtr<WindowProxy>&& view, int detail, const IntPoint& screenLocation, const IntPoint& clientLocation, double movementX, double movementY,
OptionSet<Modifier> modifiers, short button, unsigned short buttons, SyntheticClickType syntheticClickType, EventTarget* relatedTarget)
: MouseRelatedEvent(eventType, canBubble, isCancelable, isComposed, MonotonicTime::now(), WTFMove(view), detail, screenLocation, { }, movementX, movementY, modifiers, IsSimulated::No)
, m_button(button == -2 ? 0 : button)
, m_buttons(buttons)
, m_syntheticClickType(button == -2 ? SyntheticClickType::NoTap : syntheticClickType)
, m_buttonDown(button != -2)
, m_relatedTarget(relatedTarget)
{
initCoordinates(clientLocation);
}
MouseEvent::MouseEvent(const AtomString& eventType, const MouseEventInit& initializer)
: MouseRelatedEvent(eventType, initializer)
, m_button(initializer.button == -2 ? 0 : initializer.button)
, m_buttons(initializer.buttons)
, m_buttonDown(initializer.button != -2)
, m_relatedTarget(initializer.relatedTarget)
{
initCoordinates({ initializer.clientX, initializer.clientY });
}
MouseEvent::~MouseEvent() = default;
void MouseEvent::initMouseEvent(const AtomString& type, bool canBubble, bool cancelable, RefPtr<WindowProxy>&& view, int detail,
int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, short button, EventTarget* relatedTarget)
{
if (isBeingDispatched())
return;
initUIEvent(type, canBubble, cancelable, WTFMove(view), detail);
m_screenLocation = IntPoint(screenX, screenY);
setModifierKeys(ctrlKey, altKey, shiftKey, metaKey);
m_button = button == -2 ? 0 : button;
m_syntheticClickType = SyntheticClickType::NoTap;
m_buttonDown = button != -2;
m_relatedTarget = relatedTarget;
initCoordinates(IntPoint(clientX, clientY));
setIsSimulated(false);
}
// FIXME: We need this quirk because iAd Producer is calling this function with a relatedTarget that is not an EventTarget (rdar://problem/30640101).
// We should remove this quirk when possible.
void MouseEvent::initMouseEventQuirk(JSGlobalObject& state, ScriptExecutionContext& scriptExecutionContext, const AtomString& type, bool canBubble, bool cancelable, RefPtr<WindowProxy>&& view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, short button, JSValue relatedTargetValue)
{
EventTarget* relatedTarget = nullptr;
#if PLATFORM(MAC)
// Impacts iBooks too because of widgets generated by iAd Producer (rdar://problem/30797958).
if (MacApplication::isIAdProducer() || CocoaApplication::isIBooks()) {
// jsEventTargetCast() does not throw and will silently convert bad input to nullptr.
auto jsRelatedTarget = jsEventTargetCast(state.vm(), relatedTargetValue);
if (jsRelatedTarget.isNull() && !relatedTargetValue.isUndefinedOrNull())
scriptExecutionContext.addConsoleMessage(MessageSource::JS, MessageLevel::Warning, "Calling initMouseEvent() with a relatedTarget that is not an EventTarget is deprecated."_s);
relatedTarget = jsRelatedTarget.isNull() ? nullptr : &jsRelatedTarget.wrapped();
} else {
#else
UNUSED_PARAM(scriptExecutionContext);
#endif
// This is what the bindings generator would have produced.
auto throwScope = DECLARE_THROW_SCOPE(state.vm());
relatedTarget = convert<IDLNullable<IDLInterface<EventTarget>>>(state, relatedTargetValue, [](JSGlobalObject& state, ThrowScope& scope) {
throwArgumentTypeError(state, scope, 14, "relatedTarget", "MouseEvent", "initMouseEvent", "EventTarget");
});
RETURN_IF_EXCEPTION(throwScope, void());
#if PLATFORM(MAC)
}
#endif
initMouseEvent(type, canBubble, cancelable, WTFMove(view), detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget);
}
EventInterface MouseEvent::eventInterface() const
{
return MouseEventInterfaceType;
}
bool MouseEvent::isMouseEvent() const
{
return true;
}
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;
}
RefPtr<Node> MouseEvent::toElement() const
{
// MSIE extension - "the object toward which the user is moving the mouse pointer"
EventTarget* target;
auto& eventNames = WebCore::eventNames();
if (type() == eventNames.mouseoutEvent || type() == eventNames.mouseleaveEvent)
target = relatedTarget();
else
target = this->target();
return dynamicDowncast<Node>(target);
}
RefPtr<Node> MouseEvent::fromElement() const
{
// MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)
EventTarget* target;
auto& eventNames = WebCore::eventNames();
if (type() == eventNames.mouseoutEvent || type() == eventNames.mouseleaveEvent)
target = this->target();
else
target = relatedTarget();
return dynamicDowncast<Node>(target);
}
} // namespace WebCore
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