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/**
* Copyright (C) 2011 Nokia Inc. All rights reserved.
* Copyright (C) 2012 Google 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/layout/layout_quote.h"
#include <algorithm>
#include "third_party/blink/renderer/core/css/style_containment_scope.h"
#include "third_party/blink/renderer/core/css/style_containment_scope_tree.h"
#include "third_party/blink/renderer/core/css/style_engine.h"
#include "third_party/blink/renderer/core/dom/pseudo_element.h"
#include "third_party/blink/renderer/core/layout/layout_text_combine.h"
#include "third_party/blink/renderer/core/layout/layout_text_fragment.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/platform/text/layout_locale.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
namespace blink {
LayoutQuote::LayoutQuote(LayoutObject& owner, QuoteType quote)
: LayoutInline(nullptr),
type_(quote),
depth_(0),
owning_pseudo_(DynamicTo<PseudoElement>(owner.GetNode())) {
SetDocumentForAnonymous(&owner.GetDocument());
}
LayoutQuote::~LayoutQuote() {
DCHECK(!scope_);
}
void LayoutQuote::Trace(Visitor* visitor) const {
visitor->Trace(owning_pseudo_);
visitor->Trace(scope_);
LayoutInline::Trace(visitor);
}
void LayoutQuote::WillBeDestroyed() {
NOT_DESTROYED();
if (scope_) {
GetDocument()
.GetStyleEngine()
.EnsureStyleContainmentScopeTree()
.UpdateOutermostQuotesDirtyScope(scope_);
scope_->DetachQuote(*this);
}
LayoutInline::WillBeDestroyed();
}
void LayoutQuote::WillBeRemovedFromTree() {
NOT_DESTROYED();
LayoutInline::WillBeRemovedFromTree();
if (scope_) {
GetDocument()
.GetStyleEngine()
.EnsureStyleContainmentScopeTree()
.UpdateOutermostQuotesDirtyScope(scope_);
scope_->DetachQuote(*this);
}
}
void LayoutQuote::StyleDidChange(StyleDifference diff,
const ComputedStyle* old_style) {
NOT_DESTROYED();
LayoutInline::StyleDidChange(diff, old_style);
UpdateText();
}
static scoped_refptr<const QuotesData> BasicQuotesData() {
DEFINE_STATIC_REF(QuotesData, static_basic_quotes,
(QuotesData::Create(0x201c, 0x201d, 0x2018, 0x2019)));
return static_basic_quotes;
}
void LayoutQuote::UpdateText() {
NOT_DESTROYED();
String text = ComputeText();
if (text_ == text)
return;
text_ = text;
LayoutTextFragment* fragment = FindFragmentChild();
if (fragment) {
fragment->SetStyle(IsA<LayoutTextCombine>(fragment->Parent())
? fragment->Parent()->Style()
: Style());
fragment->SetContentString(text_.Impl());
} else {
fragment = LayoutTextFragment::CreateAnonymous(GetDocument(), text_.Impl());
fragment->SetStyle(Style());
AddChild(fragment);
}
}
LayoutTextFragment* LayoutQuote::FindFragmentChild() const {
NOT_DESTROYED();
// TODO(yosin): Once we support ::first-letter for <q>, we should change
// this function. See http://crbug.com/1206577
auto* const last_child = LastChild();
if (auto* fragment = DynamicTo<LayoutTextFragment>(last_child))
return fragment;
if (auto* combine = DynamicTo<LayoutTextCombine>(last_child)) {
return DynamicTo<LayoutTextFragment>(combine->FirstChild());
}
return nullptr;
}
String LayoutQuote::ComputeText() const {
NOT_DESTROYED();
switch (type_) {
case QuoteType::kNoOpen:
case QuoteType::kNoClose:
return g_empty_string;
case QuoteType::kClose:
return GetQuotesData()->GetCloseQuote(depth_ - 1).Impl();
case QuoteType::kOpen:
return GetQuotesData()->GetOpenQuote(depth_).Impl();
}
NOTREACHED();
}
scoped_refptr<const QuotesData> LayoutQuote::GetQuotesData() const {
NOT_DESTROYED();
if (scoped_refptr<const QuotesData> custom_quotes = StyleRef().Quotes())
return custom_quotes;
if (const LayoutLocale* locale = StyleRef().GetFontDescription().Locale()) {
if (scoped_refptr<const QuotesData> custom_quotes = locale->GetQuotesData())
return custom_quotes;
}
return BasicQuotesData();
}
} // namespace blink
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