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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()
: layout_object_(nullptr), cached_image_(nullptr) {}
LayoutImageResource::~LayoutImageResource() {}
void LayoutImageResource::Initialize(LayoutObject* layout_object) {
DCHECK(!layout_object_);
DCHECK(layout_object);
layout_object_ = layout_object;
}
void LayoutImageResource::Shutdown() {
DCHECK(layout_object_);
if (!cached_image_)
return;
cached_image_->RemoveObserver(layout_object_);
}
void LayoutImageResource::SetImageResource(ImageResourceContent* new_image) {
DCHECK(layout_object_);
if (cached_image_ == new_image)
return;
if (cached_image_) {
cached_image_->RemoveObserver(layout_object_);
}
cached_image_ = new_image;
if (cached_image_) {
cached_image_->AddObserver(layout_object_);
if (cached_image_->ErrorOccurred())
layout_object_->ImageChanged(cached_image_.Get());
} else {
layout_object_->ImageChanged(cached_image_.Get());
}
}
void LayoutImageResource::ResetAnimation() {
DCHECK(layout_object_);
if (!cached_image_)
return;
cached_image_->GetImage()->ResetAnimation();
layout_object_->SetShouldDoFullPaintInvalidation();
}
LayoutSize LayoutImageResource::ImageSize(float multiplier) const {
if (!cached_image_)
return LayoutSize();
LayoutSize size = cached_image_->ImageSize(
LayoutObject::ShouldRespectImageOrientation(layout_object_), multiplier);
if (layout_object_ && layout_object_->IsLayoutImage() && size.Width() &&
size.Height())
size.Scale(ToLayoutImage(layout_object_)->ImageDevicePixelRatio());
return size;
}
RefPtr<Image> LayoutImageResource::GetImage(
const IntSize& container_size) const {
if (!cached_image_)
return Image::NullImage();
if (!cached_image_->GetImage()->IsSVGImage())
return cached_image_->GetImage();
KURL url;
SVGImage* svg_image = ToSVGImage(cached_image_->GetImage());
Node* node = layout_object_->GetNode();
if (node && node->IsElementNode()) {
const AtomicString& url_string = ToElement(node)->ImageSourceURL();
url = node->GetDocument().CompleteURL(url_string);
}
return SVGImageForContainer::Create(
svg_image, container_size, layout_object_->StyleRef().EffectiveZoom(),
url);
}
bool LayoutImageResource::MaybeAnimated() const {
Image* image = cached_image_ ? cached_image_->GetImage() : Image::NullImage();
return image->MaybeAnimated();
}
} // namespace blink
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