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/**
* Copyright (C) 2011 Nokia 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 "config.h"
#include "RenderQuote.h"
#include <wtf/text/AtomicString.h>
#define U(x) ((const UChar*)L##x)
namespace WebCore {
RenderQuote::RenderQuote(Document* node, QuoteType quote)
: RenderText(node, StringImpl::empty())
, m_type(quote)
, m_depth(0)
, m_next(0)
, m_previous(0)
, m_attached(false)
{
}
RenderQuote::~RenderQuote()
{
ASSERT(!m_attached);
ASSERT(!m_next && !m_previous);
}
void RenderQuote::willBeDestroyed()
{
detachQuote();
RenderText::willBeDestroyed();
}
typedef HashMap<AtomicString, const QuotesData*, CaseFoldingHash> QuotesMap;
static const QuotesMap& quotesDataLanguageMap()
{
DEFINE_STATIC_LOCAL(QuotesMap, staticQuotesMap, ());
if (staticQuotesMap.size())
return staticQuotesMap;
// FIXME: Expand this table to include all the languages in https://bug-3234-attachments.webkit.org/attachment.cgi?id=2135
staticQuotesMap.set("en", QuotesData::create(U("\x201C"), U("\x201D"), U("\x2018"), U("\x2019")).leakRef());
staticQuotesMap.set("no", QuotesData::create(U("\x00AB"), U("\x00BB"), U("\x2039"), U("\x203A")).leakRef());
staticQuotesMap.set("ro", QuotesData::create(U("\x201E"), U("\x201D")).leakRef());
staticQuotesMap.set("ru", QuotesData::create(U("\x00AB"), U("\x00BB"), U("\x201E"), U("\x201C")).leakRef());
return staticQuotesMap;
}
static const QuotesData* basicQuotesData()
{
static const QuotesData* staticBasicQuotes = QuotesData::create(U("\""), U("\""), U("'"), U("'")).leakRef();
return staticBasicQuotes;
}
PassRefPtr<StringImpl> RenderQuote::originalText() const
{
switch (m_type) {
case NO_OPEN_QUOTE:
case NO_CLOSE_QUOTE:
return StringImpl::empty();
case CLOSE_QUOTE:
// FIXME: When m_depth is 0 we should return empty string.
return quotesData()->getCloseQuote(std::max(m_depth - 1, 0)).impl();
case OPEN_QUOTE:
return quotesData()->getOpenQuote(m_depth).impl();
}
ASSERT_NOT_REACHED();
return StringImpl::empty();
}
void RenderQuote::computePreferredLogicalWidths(float lead)
{
if (!m_attached)
attachQuote();
setTextInternal(originalText());
RenderText::computePreferredLogicalWidths(lead);
}
const QuotesData* RenderQuote::quotesData() const
{
if (QuotesData* customQuotes = style()->quotes())
return customQuotes;
AtomicString language = style()->locale();
if (language.isNull())
return basicQuotesData();
const QuotesData* quotes = quotesDataLanguageMap().get(language);
if (!quotes)
return basicQuotesData();
return quotes;
}
void RenderQuote::attachQuote()
{
ASSERT(view());
ASSERT(!m_attached);
ASSERT(!m_next && !m_previous);
// FIXME: Don't set pref widths dirty during layout. See updateDepth() for
// more detail.
if (!isRooted()) {
setNeedsLayoutAndPrefWidthsRecalc();
return;
}
if (!view()->renderQuoteHead()) {
view()->setRenderQuoteHead(this);
m_attached = true;
return;
}
for (RenderObject* predecessor = previousInPreOrder(); predecessor; predecessor = predecessor->previousInPreOrder()) {
// Skip unattached predecessors to avoid having stale m_previous pointers
// if the previous node is never attached and is then destroyed.
if (!predecessor->isQuote() || !toRenderQuote(predecessor)->isAttached())
continue;
m_previous = toRenderQuote(predecessor);
m_next = m_previous->m_next;
m_previous->m_next = this;
if (m_next)
m_next->m_previous = this;
break;
}
if (!m_previous) {
m_next = view()->renderQuoteHead();
view()->setRenderQuoteHead(this);
if (m_next)
m_next->m_previous = this;
}
m_attached = true;
for (RenderQuote* quote = this; quote; quote = quote->m_next)
quote->updateDepth();
ASSERT(!m_next || m_next->m_attached);
ASSERT(!m_next || m_next->m_previous == this);
ASSERT(!m_previous || m_previous->m_attached);
ASSERT(!m_previous || m_previous->m_next == this);
}
void RenderQuote::detachQuote()
{
ASSERT(!m_next || m_next->m_attached);
ASSERT(!m_previous || m_previous->m_attached);
if (!m_attached)
return;
if (m_previous)
m_previous->m_next = m_next;
else if (view())
view()->setRenderQuoteHead(m_next);
if (m_next)
m_next->m_previous = m_previous;
if (!documentBeingDestroyed()) {
for (RenderQuote* quote = m_next; quote; quote = quote->m_next)
quote->updateDepth();
}
m_attached = false;
m_next = 0;
m_previous = 0;
m_depth = 0;
}
void RenderQuote::updateDepth()
{
ASSERT(m_attached);
int oldDepth = m_depth;
m_depth = 0;
if (m_previous) {
m_depth = m_previous->m_depth;
switch (m_previous->m_type) {
case OPEN_QUOTE:
case NO_OPEN_QUOTE:
m_depth++;
break;
case CLOSE_QUOTE:
case NO_CLOSE_QUOTE:
if (m_depth)
m_depth--;
break;
}
}
// FIXME: Don't call setNeedsLayout or dirty our preferred widths during layout.
// This is likely to fail anyway as one of our ancestor will call setNeedsLayout(false),
// preventing the future layout to occur on |this|. The solution is to move that to a
// pre-layout phase.
if (oldDepth != m_depth)
setNeedsLayoutAndPrefWidthsRecalc();
}
} // namespace WebCore
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