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/*
* 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. ``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 COMPUTER, 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.
*/
#ifndef StylePendingImage_h
#define StylePendingImage_h
#include "Image.h"
#include "StyleImage.h"
namespace WebCore {
// StylePendingImage is a placeholder StyleImage that is entered into the RenderStyle during
// style resolution, in order to avoid loading images that are not referenced by the final style.
// They should never exist in a RenderStyle after it has been returned from the style selector.
class StylePendingImage : public StyleImage {
public:
static PassRefPtr<StylePendingImage> create(CSSImageValue* value) { return adoptRef(new StylePendingImage(value)); }
virtual WrappedImagePtr data() const { return m_value; }
virtual bool isPendingImage() const { return true; }
virtual PassRefPtr<CSSValue> cssValue() const { return m_value; }
CSSImageValue* cssImageValue() const { return m_value; }
virtual IntSize imageSize(const RenderObject*, float /*multiplier*/) const { return IntSize(); }
virtual bool imageHasRelativeWidth() const { return false; }
virtual bool imageHasRelativeHeight() const { return false; }
virtual bool usesImageContainerSize() const { return false; }
virtual void setImageContainerSize(const IntSize&) { }
virtual void addClient(RenderObject*) { }
virtual void removeClient(RenderObject*) { }
virtual PassRefPtr<Image> image(RenderObject*, const IntSize&) const
{
ASSERT_NOT_REACHED();
return 0;
}
private:
StylePendingImage(CSSImageValue* value)
: m_value(value)
{
}
CSSImageValue* m_value; // Not retained; it owns us.
};
}
#endif
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