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129 lines
4.3 KiB
C++
129 lines
4.3 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, 2005, 2006, 2008, 2010 Apple Inc. All rights reserved.
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* Copyright (C) 2013 Samsung Electronics. 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 "core/events/WheelEvent.h"
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#include "platform/PlatformMouseEvent.h"
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#include "platform/PlatformWheelEvent.h"
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namespace blink {
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WheelEventInit::WheelEventInit()
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: deltaX(0)
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, deltaY(0)
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, deltaZ(0)
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, wheelDeltaX(0)
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, wheelDeltaY(0)
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, deltaMode(WheelEvent::DOM_DELTA_PIXEL)
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{
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}
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WheelEvent::WheelEvent()
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: m_deltaX(0)
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, m_deltaY(0)
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, m_deltaZ(0)
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, m_deltaMode(DOM_DELTA_PIXEL)
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{
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ScriptWrappable::init(this);
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}
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WheelEvent::WheelEvent(const AtomicString& type, const WheelEventInit& initializer)
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: MouseEvent(type, initializer)
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, m_wheelDelta(initializer.wheelDeltaX ? initializer.wheelDeltaX : -initializer.deltaX, initializer.wheelDeltaY ? initializer.wheelDeltaY : -initializer.deltaY)
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, m_deltaX(initializer.deltaX ? initializer.deltaX : -initializer.wheelDeltaX)
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, m_deltaY(initializer.deltaY ? initializer.deltaY : -initializer.wheelDeltaY)
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, m_deltaZ(initializer.deltaZ)
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, m_deltaMode(initializer.deltaMode)
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{
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ScriptWrappable::init(this);
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}
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WheelEvent::WheelEvent(const FloatPoint& wheelTicks, const FloatPoint& rawDelta, unsigned deltaMode,
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PassRefPtrWillBeRawPtr<AbstractView> view, const IntPoint& screenLocation, const IntPoint& pageLocation,
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bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
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: MouseEvent(EventTypeNames::wheel, true, true, view, 0, screenLocation.x(), screenLocation.y(),
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pageLocation.x(), pageLocation.y(), 0, 0, ctrlKey, altKey, shiftKey, metaKey, 0,
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nullptr, false, PlatformMouseEvent::RealOrIndistinguishable)
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, m_wheelDelta(wheelTicks.x() * TickMultiplier, wheelTicks.y() * TickMultiplier)
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, m_deltaX(-rawDelta.x())
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, m_deltaY(-rawDelta.y())
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, m_deltaZ(0)
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, m_deltaMode(deltaMode)
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{
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ScriptWrappable::init(this);
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}
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const AtomicString& WheelEvent::interfaceName() const
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{
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return EventNames::WheelEvent;
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}
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bool WheelEvent::isMouseEvent() const
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{
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return false;
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}
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bool WheelEvent::isWheelEvent() const
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{
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return true;
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}
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void WheelEvent::trace(Visitor* visitor)
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{
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MouseEvent::trace(visitor);
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}
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inline static unsigned deltaMode(const PlatformWheelEvent& event)
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{
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return event.granularity() == ScrollByPageWheelEvent ? WheelEvent::DOM_DELTA_PAGE : WheelEvent::DOM_DELTA_PIXEL;
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}
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PassRefPtrWillBeRawPtr<WheelEventDispatchMediator> WheelEventDispatchMediator::create(const PlatformWheelEvent& event, PassRefPtrWillBeRawPtr<AbstractView> view)
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{
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return adoptRefWillBeNoop(new WheelEventDispatchMediator(event, view));
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}
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WheelEventDispatchMediator::WheelEventDispatchMediator(const PlatformWheelEvent& event, PassRefPtrWillBeRawPtr<AbstractView> view)
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{
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if (!(event.deltaX() || event.deltaY()))
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return;
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setEvent(WheelEvent::create(FloatPoint(event.wheelTicksX(), event.wheelTicksY()), FloatPoint(event.deltaX(), event.deltaY()),
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deltaMode(event), view, event.globalPosition(), event.position(),
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event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey()));
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}
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WheelEvent* WheelEventDispatchMediator::event() const
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{
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return toWheelEvent(EventDispatchMediator::event());
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}
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bool WheelEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
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{
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ASSERT(event());
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return EventDispatchMediator::dispatchEvent(dispatcher) && !event()->defaultHandled();
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}
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} // namespace blink
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