/*
 * Copyright (C) 2023 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.
 */

#pragma once

#include "FloatRect.h"
#include "RegionContext.h"

namespace WebCore {

class RenderBox;

class AccessibilityRegionContext : public RegionContext {
public:
    AccessibilityRegionContext() = default;
    virtual ~AccessibilityRegionContext();

    bool isAccessibilityRegionContext() const final { return true; }

    void takeBounds(const RenderBox&, FloatRect /* paintRect */);

private:
    // Maps the given rect using the current transform and clip stack.
    template<typename RectT>
    FloatRect mapRect(RectT&& rect)
    {
        bool hasTransform = m_transformStack.size();
        bool hasClip = m_clipStack.size();
        if (!hasTransform && !hasClip)
            return rect;

        FloatRect mappedRect = rect;
        if (hasTransform)
            mappedRect = m_transformStack.last().mapRect(mappedRect);
        if (hasClip)
            mappedRect.intersect(m_clipStack.last());

        return mappedRect;
    }

}; // class AccessibilityRegionContext

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::AccessibilityRegionContext)
    static bool isType(const WebCore::RegionContext& regionContext) { return regionContext.isAccessibilityRegionContext(); }
SPECIALIZE_TYPE_TRAITS_END()
