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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "core/css/resolver/ElementStyleResources.h"
#include "core/css/CSSGradientValue.h"
#include "core/css/CSSSVGDocumentValue.h"
#include "core/rendering/style/StyleGeneratedImage.h"
#include "core/rendering/style/StyleImage.h"
#include "core/rendering/style/StylePendingImage.h"
#include "platform/graphics/filters/FilterOperation.h"
namespace blink {
ElementStyleResources::ElementStyleResources()
: m_deviceScaleFactor(1)
{
}
PassRefPtr<StyleImage> ElementStyleResources::styleImage(Document& document, const TextLinkColors& textLinkColors, Color currentColor, CSSPropertyID property, CSSValue* value)
{
if (value->isImageValue())
return cachedOrPendingFromValue(document, property, toCSSImageValue(value));
if (value->isImageGeneratorValue())
return generatedOrPendingFromValue(property, toCSSImageGeneratorValue(value));
if (value->isImageSetValue())
return setOrPendingFromValue(property, toCSSImageSetValue(value));
if (value->isCursorImageValue())
return cursorOrPendingFromValue(property, toCSSCursorImageValue(value));
return nullptr;
}
PassRefPtr<StyleImage> ElementStyleResources::generatedOrPendingFromValue(CSSPropertyID property, CSSImageGeneratorValue* value)
{
if (value->isPending()) {
m_pendingImageProperties.set(property, value);
return StylePendingImage::create(value);
}
return StyleGeneratedImage::create(value);
}
PassRefPtr<StyleImage> ElementStyleResources::setOrPendingFromValue(CSSPropertyID property, CSSImageSetValue* value)
{
RefPtr<StyleImage> image = value->cachedOrPendingImageSet(m_deviceScaleFactor);
if (image && image->isPendingImage())
m_pendingImageProperties.set(property, value);
return image.release();
}
PassRefPtr<StyleImage> ElementStyleResources::cachedOrPendingFromValue(Document& document, CSSPropertyID property, CSSImageValue* value)
{
RefPtr<StyleImage> image = value->cachedOrPendingImage();
if (image) {
if (image->isPendingImage())
m_pendingImageProperties.set(property, value);
else
value->restoreCachedResourceIfNeeded(document);
}
return image.release();
}
PassRefPtr<StyleImage> ElementStyleResources::cursorOrPendingFromValue(CSSPropertyID property, CSSCursorImageValue* value)
{
RefPtr<StyleImage> image = value->cachedOrPendingImage(m_deviceScaleFactor);
if (image && image->isPendingImage())
m_pendingImageProperties.set(property, value);
return image.release();
}
void ElementStyleResources::clearPendingImageProperties()
{
m_pendingImageProperties.clear();
}
void ElementStyleResources::clearPendingSVGDocuments()
{
m_pendingSVGDocuments.clear();
}
void ElementStyleResources::addPendingSVGDocument(FilterOperation* filterOperation, CSSSVGDocumentValue* cssSVGDocumentValue)
{
m_pendingSVGDocuments.set(filterOperation, cssSVGDocumentValue);
}
}
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