221 lines
10 KiB
C++
221 lines
10 KiB
C++
/*
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* Copyright (C) 2001 Peter Kelly (pmk@post.com)
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* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
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* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
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* Copyright (C) 2003-2016 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "MouseEvent.h"
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#include "EventNames.h"
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#include "Frame.h"
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#include "FrameView.h"
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#include "HTMLIFrameElement.h"
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#include "JSDOMConvertInterface.h"
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#include "JSDOMConvertNullable.h"
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#include "JSEventTarget.h"
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#include "JSEventTargetCustom.h"
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#include "PlatformMouseEvent.h"
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#include "RuntimeApplicationChecks.h"
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#include <JavaScriptCore/CallFrame.h>
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#include <JavaScriptCore/JSGlobalObjectInlines.h>
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(MouseEvent);
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using namespace JSC;
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Ref<MouseEvent> MouseEvent::create(const AtomString& type, const MouseEventInit& initializer)
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{
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return adoptRef(*new MouseEvent(type, initializer));
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}
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Ref<MouseEvent> MouseEvent::create(const AtomString& eventType, RefPtr<WindowProxy>&& view, const PlatformMouseEvent& event, int detail, Node* relatedTarget)
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{
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bool isMouseEnterOrLeave = eventType == eventNames().mouseenterEvent || eventType == eventNames().mouseleaveEvent;
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auto isCancelable = !isMouseEnterOrLeave ? IsCancelable::Yes : IsCancelable::No;
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auto canBubble = !isMouseEnterOrLeave ? CanBubble::Yes : CanBubble::No;
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auto isComposed = !isMouseEnterOrLeave ? IsComposed::Yes : IsComposed::No;
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return MouseEvent::create(eventType, canBubble, isCancelable, isComposed, event.timestamp().approximateMonotonicTime(), WTFMove(view), detail,
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event.globalPosition(), event.position(),
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#if ENABLE(POINTER_LOCK)
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event.movementDelta(),
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#else
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{ },
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#endif
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event.modifiers(), event.button(), event.buttons(), relatedTarget, event.force(), event.syntheticClickType());
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}
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Ref<MouseEvent> MouseEvent::create(const AtomString& type, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
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const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier> modifiers, short button, unsigned short buttons,
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EventTarget* relatedTarget, double force, unsigned short syntheticClickType, IsSimulated isSimulated, IsTrusted isTrusted)
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{
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return adoptRef(*new MouseEvent(type, canBubble, isCancelable, isComposed, timestamp, WTFMove(view), detail,
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screenLocation, windowLocation, movementDelta, modifiers, button, buttons, relatedTarget, force, syntheticClickType, isSimulated, isTrusted));
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}
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Ref<MouseEvent> MouseEvent::create(const AtomString& eventType, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed, RefPtr<WindowProxy>&& view, int detail,
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int screenX, int screenY, int clientX, int clientY, OptionSet<Modifier> modifiers, short button, unsigned short buttons,
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unsigned short syntheticClickType, EventTarget* relatedTarget)
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{
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return adoptRef(*new MouseEvent(eventType, canBubble, isCancelable, isComposed, WTFMove(view), detail, { screenX, screenY }, { clientX, clientY }, modifiers, button, buttons, syntheticClickType, relatedTarget));
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}
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MouseEvent::MouseEvent() = default;
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MouseEvent::MouseEvent(const AtomString& eventType, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed,
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MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
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const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier> modifiers, short button, unsigned short buttons,
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EventTarget* relatedTarget, double force, unsigned short syntheticClickType, IsSimulated isSimulated, IsTrusted isTrusted)
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: MouseRelatedEvent(eventType, canBubble, isCancelable, isComposed, timestamp, WTFMove(view), detail, screenLocation, windowLocation, movementDelta, modifiers, isSimulated, isTrusted)
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, m_button(button == -2 ? 0 : button)
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, m_buttons(buttons)
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, m_syntheticClickType(button == -2 ? 0 : syntheticClickType)
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, m_buttonDown(button != -2)
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, m_relatedTarget(relatedTarget)
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, m_force(force)
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{
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}
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MouseEvent::MouseEvent(const AtomString& eventType, CanBubble canBubble, IsCancelable isCancelable, IsComposed isComposed,
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RefPtr<WindowProxy>&& view, int detail, const IntPoint& screenLocation, const IntPoint& clientLocation,
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OptionSet<Modifier> modifiers, short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget)
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: MouseRelatedEvent(eventType, canBubble, isCancelable, isComposed, MonotonicTime::now(), WTFMove(view), detail, screenLocation, { }, { }, modifiers, IsSimulated::No)
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, m_button(button == -2 ? 0 : button)
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, m_buttons(buttons)
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, m_syntheticClickType(button == -2 ? 0 : syntheticClickType)
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, m_buttonDown(button != -2)
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, m_relatedTarget(relatedTarget)
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{
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initCoordinates(clientLocation);
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}
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MouseEvent::MouseEvent(const AtomString& eventType, const MouseEventInit& initializer)
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: MouseRelatedEvent(eventType, initializer)
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, m_button(initializer.button == -2 ? 0 : initializer.button)
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, m_buttons(initializer.buttons)
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, m_buttonDown(initializer.button != -2)
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, m_relatedTarget(initializer.relatedTarget)
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{
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initCoordinates({ initializer.clientX, initializer.clientY });
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}
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MouseEvent::~MouseEvent() = default;
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void MouseEvent::initMouseEvent(const AtomString& type, bool canBubble, bool cancelable, RefPtr<WindowProxy>&& view, int detail,
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int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, short button, EventTarget* relatedTarget)
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{
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if (isBeingDispatched())
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return;
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initUIEvent(type, canBubble, cancelable, WTFMove(view), detail);
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m_screenLocation = IntPoint(screenX, screenY);
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setModifierKeys(ctrlKey, altKey, shiftKey, metaKey);
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m_button = button == -2 ? 0 : button;
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m_syntheticClickType = 0;
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m_buttonDown = button != -2;
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m_relatedTarget = relatedTarget;
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initCoordinates(IntPoint(clientX, clientY));
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setIsSimulated(false);
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}
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// FIXME: We need this quirk because iAd Producer is calling this function with a relatedTarget that is not an EventTarget (rdar://problem/30640101).
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// We should remove this quirk when possible.
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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)
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{
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EventTarget* relatedTarget = nullptr;
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#if PLATFORM(MAC)
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// Impacts iBooks too because of widgets generated by iAd Producer (rdar://problem/30797958).
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if (MacApplication::isIAdProducer() || CocoaApplication::isIBooks()) {
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// jsEventTargetCast() does not throw and will silently convert bad input to nullptr.
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auto jsRelatedTarget = jsEventTargetCast(state.vm(), relatedTargetValue);
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if (!jsRelatedTarget && !relatedTargetValue.isUndefinedOrNull())
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scriptExecutionContext.addConsoleMessage(MessageSource::JS, MessageLevel::Warning, "Calling initMouseEvent() with a relatedTarget that is not an EventTarget is deprecated."_s);
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relatedTarget = jsRelatedTarget ? &jsRelatedTarget->wrapped() : nullptr;
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} else {
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#else
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UNUSED_PARAM(scriptExecutionContext);
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#endif
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// This is what the bindings generator would have produced.
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auto throwScope = DECLARE_THROW_SCOPE(state.vm());
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relatedTarget = convert<IDLNullable<IDLInterface<EventTarget>>>(state, relatedTargetValue, [](JSGlobalObject& state, ThrowScope& scope) {
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throwArgumentTypeError(state, scope, 14, "relatedTarget", "MouseEvent", "initMouseEvent", "EventTarget");
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});
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RETURN_IF_EXCEPTION(throwScope, void());
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#if PLATFORM(MAC)
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}
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#endif
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initMouseEvent(type, canBubble, cancelable, WTFMove(view), detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget);
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}
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EventInterface MouseEvent::eventInterface() const
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{
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return MouseEventInterfaceType;
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}
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bool MouseEvent::isMouseEvent() const
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{
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return true;
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}
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bool MouseEvent::canTriggerActivationBehavior(const Event& event)
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{
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return event.type() == eventNames().clickEvent && (!is<MouseEvent>(event) || downcast<MouseEvent>(event).button() != RightButton);
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}
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int MouseEvent::which() const
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{
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// For the DOM, the return values for left, middle and right mouse buttons are 0, 1, 2, respectively.
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// For the Netscape "which" property, the return values for left, middle and right mouse buttons are 1, 2, 3, respectively.
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// So we must add 1.
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if (!m_buttonDown)
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return 0;
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return m_button + 1;
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}
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RefPtr<Node> MouseEvent::toElement() const
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{
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// MSIE extension - "the object toward which the user is moving the mouse pointer"
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EventTarget* target;
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if (type() == eventNames().mouseoutEvent || type() == eventNames().mouseleaveEvent)
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target = relatedTarget();
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else
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target = this->target();
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return is<Node>(target) ? &downcast<Node>(*target) : nullptr;
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}
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RefPtr<Node> MouseEvent::fromElement() const
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{
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// MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)
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EventTarget* target;
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if (type() == eventNames().mouseoutEvent || type() == eventNames().mouseleaveEvent)
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target = this->target();
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else
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target = relatedTarget();
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return is<Node>(target) ? &downcast<Node>(*target) : nullptr;
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}
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} // namespace WebCore
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