Source/WebKit/Shared/WebTouchEvent.cpp

/*
 * Copyright (C) 2010 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "WebTouchEvent.h"

#if ENABLE(TOUCH_EVENTS)

#include "ArgumentCoders.h"

namespace WebKit {

#if !PLATFORM(IOS_FAMILY)

WebTouchEvent::WebTouchEvent(WebEvent::Type type, Vector<WebPlatformTouchPoint>&& touchPoints, OptionSet<Modifier> modifiers, WallTime timestamp)
    : WebEvent(type, modifiers, timestamp)
    , m_touchPoints(WTFMove(touchPoints))
{
    ASSERT(isTouchEventType(type));
}

void WebTouchEvent::encode(IPC::Encoder& encoder) const
{
    WebEvent::encode(encoder);

    encoder << m_touchPoints;
}

bool WebTouchEvent::decode(IPC::Decoder& decoder, WebTouchEvent& result)
{
    if (!WebEvent::decode(decoder, result))
        return false;

    if (!decoder.decode(result.m_touchPoints))
        return false;

    return true;
}

bool WebTouchEvent::isTouchEventType(Type type)
{
    return type == TouchStart || type == TouchMove || type == TouchEnd || type == TouchCancel;
}

#endif // !PLATFORM(IOS_FAMILY)

bool WebTouchEvent::allTouchPointsAreReleased() const
{
    for (const auto& touchPoint : touchPoints()) {
        if (touchPoint.state() != WebPlatformTouchPoint::TouchReleased && touchPoint.state() != WebPlatformTouchPoint::TouchCancelled)
            return false;
    }

    return true;
}

} // namespace WebKit

#endif // ENABLE(TOUCH_EVENTS)