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/*
* Copyright (C) 1999 Lars Knoll <knoll@kde.org>
* Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
* Copyright (C) 2000 Dirk Mueller <mueller@kde.org>
* Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
* Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
*
* 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 "core/layout/LayoutImageResource.h"
#include "core/dom/Element.h"
#include "core/layout/LayoutImage.h"
#include "core/svg/graphics/SVGImageForContainer.h"
namespace blink {
LayoutImageResource::LayoutImageResource()
: m_layoutObject(nullptr)
, m_cachedImage(nullptr)
{
}
LayoutImageResource::~LayoutImageResource()
{
}
void LayoutImageResource::initialize(LayoutObject* layoutObject)
{
ASSERT(!m_layoutObject);
ASSERT(layoutObject);
m_layoutObject = layoutObject;
}
void LayoutImageResource::shutdown()
{
ASSERT(m_layoutObject);
if (!m_cachedImage)
return;
m_cachedImage->removeObserver(m_layoutObject);
}
void LayoutImageResource::setImageResource(ImageResource* newImage)
{
ASSERT(m_layoutObject);
if (m_cachedImage == newImage)
return;
if (m_cachedImage) {
m_cachedImage->removeObserver(m_layoutObject);
}
m_cachedImage = newImage;
if (m_cachedImage) {
m_cachedImage->addObserver(m_layoutObject);
if (m_cachedImage->errorOccurred())
m_layoutObject->imageChanged(m_cachedImage.get());
} else {
m_layoutObject->imageChanged(m_cachedImage.get());
}
}
void LayoutImageResource::resetAnimation()
{
ASSERT(m_layoutObject);
if (!m_cachedImage)
return;
m_cachedImage->getImage()->resetAnimation();
m_layoutObject->setShouldDoFullPaintInvalidation();
}
LayoutSize LayoutImageResource::imageSize(float multiplier) const
{
if (!m_cachedImage)
return LayoutSize();
LayoutSize size = m_cachedImage->imageSize(LayoutObject::shouldRespectImageOrientation(m_layoutObject), multiplier);
if (m_layoutObject && m_layoutObject->isLayoutImage() && size.width() && size.height())
size.scale(toLayoutImage(m_layoutObject)->imageDevicePixelRatio());
return size;
}
PassRefPtr<Image> LayoutImageResource::image(const IntSize& containerSize, float zoom) const
{
if (!m_cachedImage)
return Image::nullImage();
if (!m_cachedImage->getImage()->isSVGImage())
return m_cachedImage->getImage();
KURL url;
SVGImage* svgImage = toSVGImage(m_cachedImage->getImage());
Node* node = m_layoutObject->node();
if (node && node->isElementNode()) {
const AtomicString& urlString = toElement(node)->imageSourceURL();
url = node->document().completeURL(urlString);
}
return SVGImageForContainer::create(svgImage, containerSize, zoom, url);
}
bool LayoutImageResource::maybeAnimated() const
{
Image* image = m_cachedImage ? m_cachedImage->getImage() : Image::nullImage();
return image->maybeAnimated();
}
} // namespace blink
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