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/*
* Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 "third_party/blink/renderer/core/style/content_data.h"
#include <memory>
#include "third_party/blink/renderer/core/dom/pseudo_element.h"
#include "third_party/blink/renderer/core/dom/tree_scope.h"
#include "third_party/blink/renderer/core/layout/layout_counter.h"
#include "third_party/blink/renderer/core/layout/layout_image.h"
#include "third_party/blink/renderer/core/layout/layout_image_resource.h"
#include "third_party/blink/renderer/core/layout/layout_image_resource_style_image.h"
#include "third_party/blink/renderer/core/layout/layout_quote.h"
#include "third_party/blink/renderer/core/layout/layout_text_fragment.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
namespace blink {
ContentData* ContentData::Clone() const {
ContentData* result = CloneInternal();
ContentData* last_new_data = result;
for (const ContentData* content_data = Next(); content_data;
content_data = content_data->Next()) {
ContentData* new_data = content_data->CloneInternal();
last_new_data->SetNext(new_data);
last_new_data = last_new_data->Next();
}
return result;
}
void ContentData::Trace(Visitor* visitor) const {
visitor->Trace(next_);
}
String ContentData::ConcatenateAltText(const ContentData& first_alt_data) {
DCHECK(first_alt_data.IsAlt());
StringBuilder alt_text;
for (const ContentData* content_data = &first_alt_data; content_data;
content_data = content_data->Next()) {
if (auto* alt_counter = DynamicTo<AltCounterContentData>(content_data)) {
alt_text.Append(alt_counter->GetText());
} else {
alt_text.Append(To<AltTextContentData>(content_data)->GetText());
}
}
return alt_text.ToString();
}
LayoutObject* ImageContentData::CreateLayoutObject(LayoutObject& owner) const {
LayoutImage* image = LayoutImage::CreateAnonymous(owner.GetDocument());
bool match_parent_size = image_ && image_->IsGeneratedImage();
image->SetPseudoElementStyle(owner, match_parent_size);
if (image_) {
image->SetImageResource(
MakeGarbageCollected<LayoutImageResourceStyleImage>(image_.Get()));
} else {
image->SetImageResource(MakeGarbageCollected<LayoutImageResource>());
}
return image;
}
void ImageContentData::Trace(Visitor* visitor) const {
visitor->Trace(image_);
ContentData::Trace(visitor);
}
LayoutObject* TextContentData::CreateLayoutObject(LayoutObject& owner) const {
LayoutObject* layout_object =
LayoutTextFragment::CreateAnonymous(owner.GetDocument(), text_);
layout_object->SetPseudoElementStyle(owner);
return layout_object;
}
LayoutObject* AltTextContentData::CreateLayoutObject(
LayoutObject& owner) const {
// Does not require a layout object. Calling site should first check
// IsAltContentData() before calling this method.
NOTREACHED();
}
LayoutObject* CounterContentData::CreateLayoutObject(
LayoutObject& owner) const {
LayoutObject* layout_object =
MakeGarbageCollected<LayoutCounter>(owner.GetDocument(), *this);
layout_object->SetPseudoElementStyle(owner);
return layout_object;
}
void CounterContentData::Trace(Visitor* visitor) const {
visitor->Trace(counter_data_);
ContentData::Trace(visitor);
}
LayoutObject* AltCounterContentData::CreateLayoutObject(
LayoutObject& owner) const {
NOTREACHED();
}
void AltCounterContentData::UpdateText(
CountersAttachmentContext& context,
const StyleEngine& style_engine,
const LayoutObject& content_generating_object) {
Vector<int> counter_values = context.GetCounterValues(
content_generating_object, Identifier(), Separator().IsNull());
const CounterStyle& counter_style =
style_engine.FindCounterStyleAcrossScopes(ListStyle(), GetTreeScope());
String text = LayoutCounter::GenerateCounterText(std::move(counter_values),
&counter_style, Separator());
SetText(std::move(text));
}
LayoutObject* QuoteContentData::CreateLayoutObject(LayoutObject& owner) const {
LayoutObject* layout_object =
MakeGarbageCollected<LayoutQuote>(owner, quote_);
layout_object->SetPseudoElementStyle(owner);
return layout_object;
}
LayoutObject* NoneContentData::CreateLayoutObject(LayoutObject& owner) const {
NOTREACHED();
}
} // namespace blink
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