Source/WebCore/platform/ScrollbarTheme.cpp

/*
 * Copyright (C) 2011 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. ``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
 * 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 "ScrollbarTheme.h"

#include "DeprecatedGlobalSettings.h"
#include "PlatformMouseEvent.h"
#include "ScrollbarThemeMock.h"
#include <wtf/NeverDestroyed.h>

namespace WebCore {

ScrollbarTheme& ScrollbarTheme::theme()
{
    if (DeprecatedGlobalSettings::mockScrollbarsEnabled()) {
        static NeverDestroyed<ScrollbarThemeMock> mockTheme;
        return mockTheme;
    }
    return nativeTheme();
}

ScrollbarButtonPressAction ScrollbarTheme::handleMousePressEvent(Scrollbar&, const PlatformMouseEvent& event, ScrollbarPart pressedPart)
{
    if (event.button() == RightButton)
        return ScrollbarButtonPressAction::None;
    if (pressedPart == ThumbPart)
        return ScrollbarButtonPressAction::StartDrag;
    return ScrollbarButtonPressAction::Scroll;
}

}