CSSPaintImageValue.h   [plain text]

/*
 * Copyright (C) 2018 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
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 * 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#pragma once

#if ENABLE(CSS_PAINTING_API)

#include "CSSImageGeneratorValue.h"

namespace WebCore {
class CSSVariableData;

class CSSPaintImageValue final : public CSSImageGeneratorValue {
public:
    static Ref<CSSPaintImageValue> create(const String& name, Ref<CSSVariableData>&& arguments)
    {
        return adoptRef(*new CSSPaintImageValue(name, WTFMove(arguments)));
    }

    const String& name() const { return m_name; }

    RefPtr<Image> image(RenderElement&, const FloatSize&);

    bool equals(const CSSPaintImageValue& other) const { return m_name == other.m_name; }
    String customCSSText() const;

    bool isFixedSize() const { return false; }
    FloatSize fixedSize(const RenderElement&) const { return FloatSize(); }

    bool isPending() const { return false; }
    bool knownToBeOpaque(const RenderElement&) const { return false; }

    void loadSubimages(CachedResourceLoader&, const ResourceLoaderOptions&) { }

private:
    CSSPaintImageValue(const String& name, Ref<CSSVariableData>&& arguments)
        : CSSImageGeneratorValue(PaintImageClass)
        , m_name(name)
        , m_arguments(WTFMove(arguments))
    {
    }

    const String m_name;
    Ref<CSSVariableData> m_arguments;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSPaintImageValue, isPaintImageValue())

#endif