blob: 39a1b6ec84128e1b52682d2ea9cdfdd848cde2ca [file] [log] [blame]
/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2008 Apple 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/CSSImageValue.h"
#include "FetchInitiatorTypeNames.h"
#include "core/css/CSSParser.h"
#include "core/dom/Document.h"
#include "core/fetch/CrossOriginAccessControl.h"
#include "core/fetch/FetchRequest.h"
#include "core/fetch/ImageResource.h"
#include "core/fetch/ResourceFetcher.h"
#include "core/rendering/style/StyleFetchedImage.h"
#include "core/rendering/style/StylePendingImage.h"
namespace WebCore {
CSSImageValue::CSSImageValue(const String& url)
: CSSValue(ImageClass)
, m_url(url)
, m_accessedImage(false)
{
}
CSSImageValue::CSSImageValue(const String& url, StyleImage* image)
: CSSValue(ImageClass)
, m_url(url)
, m_image(image)
, m_accessedImage(true)
{
}
CSSImageValue::~CSSImageValue()
{
}
StyleImage* CSSImageValue::cachedOrPendingImage()
{
if (!m_image)
m_image = StylePendingImage::create(this);
return m_image.get();
}
StyleFetchedImage* CSSImageValue::cachedImage(ResourceFetcher* loader, const ResourceLoaderOptions& options)
{
ASSERT(loader);
if (!m_accessedImage) {
m_accessedImage = true;
FetchRequest request(ResourceRequest(loader->document()->completeURL(m_url)), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName, options);
if (options.requestOriginPolicy == PotentiallyCrossOriginEnabled)
updateRequestForAccessControl(request.mutableResourceRequest(), loader->document()->securityOrigin(), options.allowCredentials);
if (ResourcePtr<ImageResource> cachedImage = loader->fetchImage(request))
m_image = StyleFetchedImage::create(cachedImage.get());
}
return (m_image && m_image->isImageResource()) ? static_cast<StyleFetchedImage*>(m_image.get()) : 0;
}
bool CSSImageValue::hasFailedOrCanceledSubresources() const
{
if (!m_image || !m_image->isImageResource())
return false;
Resource* cachedResource = static_cast<StyleFetchedImage*>(m_image.get())->cachedImage();
if (!cachedResource)
return true;
return cachedResource->loadFailedOrCanceled();
}
bool CSSImageValue::equals(const CSSImageValue& other) const
{
return m_url == other.m_url;
}
String CSSImageValue::customCSSText() const
{
return "url(" + quoteCSSURLIfNeeded(m_url) + ")";
}
PassRefPtr<CSSValue> CSSImageValue::cloneForCSSOM() const
{
// NOTE: We expose CSSImageValues as URI primitive values in CSSOM to maintain old behavior.
RefPtr<CSSPrimitiveValue> uriValue = CSSPrimitiveValue::create(m_url, CSSPrimitiveValue::CSS_URI);
uriValue->setCSSOMSafe();
return uriValue.release();
}
bool CSSImageValue::knownToBeOpaque(const RenderObject* renderer) const
{
return m_image ? m_image->knownToBeOpaque(renderer) : false;
}
} // namespace WebCore