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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/LayoutImageResourceStyleImage.h"
#include "core/fetch/ImageResource.h"
#include "core/layout/LayoutObject.h"
#include "core/style/StyleFetchedImage.h"
namespace blink {
LayoutImageResourceStyleImage::LayoutImageResourceStyleImage(StyleImage* styleImage)
: m_styleImage(styleImage)
{
ASSERT(m_styleImage);
}
LayoutImageResourceStyleImage::~LayoutImageResourceStyleImage()
{
ASSERT(!m_cachedImage);
}
void LayoutImageResourceStyleImage::initialize(LayoutObject* layoutObject)
{
LayoutImageResource::initialize(layoutObject);
if (m_styleImage->isImageResource())
m_cachedImage = toStyleFetchedImage(m_styleImage)->cachedImage();
m_styleImage->addClient(m_layoutObject);
}
void LayoutImageResourceStyleImage::shutdown()
{
ASSERT(m_layoutObject);
m_styleImage->removeClient(m_layoutObject);
m_cachedImage = nullptr;
}
PassRefPtr<Image> LayoutImageResourceStyleImage::image(const IntSize& size, float zoom) const
{
// Generated content may trigger calls to image() while we're still pending, don't assert but gracefully exit.
if (m_styleImage->isPendingImage())
return nullptr;
return m_styleImage->image(*m_layoutObject, size, zoom);
}
DEFINE_TRACE(LayoutImageResourceStyleImage)
{
visitor->trace(m_styleImage);
LayoutImageResource::trace(visitor);
}
} // namespace blink
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