third_party/WebKit/Source/core/style/StyleInvalidImage.h

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef StyleInvalidImage_h
#define StyleInvalidImage_h

#include "core/css/CSSImageValue.h"
#include "core/style/StyleImage.h"

namespace blink {

class StyleInvalidImage final : public StyleImage {
public:
    static StyleInvalidImage* create(const String& url)
    {
        return new StyleInvalidImage(url);
    }

    WrappedImagePtr data() const override { return m_url.impl(); }

    CSSValue* cssValue() const override { return CSSImageValue::create(AtomicString(m_url)); }

    CSSValue* computedCSSValue() const override { return cssValue(); }

    LayoutSize imageSize(const LayoutObject&, float /*multiplier*/, const LayoutSize& /*defaultObjectSize*/) const override { return LayoutSize(); }
    bool imageHasRelativeSize() const override { return false; }
    bool usesImageContainerSize() const override { return false; }
    void addClient(LayoutObject*) override { }
    void removeClient(LayoutObject*) override { }
    PassRefPtr<Image> image(const LayoutObject&, const IntSize&, float) const override
    {
        return nullptr;
    }
    bool knownToBeOpaque(const LayoutObject&) const override { return false; }

    DEFINE_INLINE_VIRTUAL_TRACE()
    {
        StyleImage::trace(visitor);
    }

private:
    explicit StyleInvalidImage(const String& url)
        : m_url(url)
    {
        m_isInvalidImage = true;
    }

    String m_url;
};

DEFINE_STYLE_IMAGE_TYPE_CASTS(StyleInvalidImage, isInvalidImage());

} // namespace blink
#endif