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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* implementation of quotes for the CSS 'content' property */
#include "nsQuoteList.h"
#include "nsReadableUtils.h"
#include "nsIContent.h"
#include "nsIFrame.h"
#include "nsIFrameInlines.h"
#include "nsContainerFrame.h"
#include "mozilla/ContainStyleScopeManager.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/Text.h"
#include "mozilla/intl/Quotes.h"
using namespace mozilla;
bool nsQuoteNode::InitTextFrame(nsGenConList* aList, nsIFrame* aPseudoFrame,
nsIFrame* aTextFrame) {
nsGenConNode::InitTextFrame(aList, aPseudoFrame, aTextFrame);
nsQuoteList* quoteList = static_cast<nsQuoteList*>(aList);
bool dirty = false;
quoteList->Insert(this);
if (quoteList->IsLast(this)) {
quoteList->Calc(this);
} else {
dirty = true;
}
// Don't set up text for 'no-open-quote' and 'no-close-quote'.
if (IsRealQuote()) {
aTextFrame->GetContent()->AsText()->SetText(Text(), false);
}
return dirty;
}
nsString nsQuoteNode::Text() {
NS_ASSERTION(mType == StyleContentType::OpenQuote ||
mType == StyleContentType::CloseQuote,
"should only be called when mText should be non-null");
nsString result;
int32_t depth = Depth();
MOZ_ASSERT(depth >= -1);
if (depth < 0) {
return result;
}
const auto& quotesProp = mPseudoFrame->StyleList()->mQuotes;
if (quotesProp.IsAuto()) {
// Look up CLDR-derived quotation marks for the language of the context.
const nsIFrame* frame = mPseudoFrame->GetInFlowParent();
// Parent of the pseudo is the element around which the quotes are applied;
// we want lang from *its* parent, unless it is the root.
// XXX Are there other cases where we shouldn't look up to the parent?
if (!frame->Style()->IsRootElementStyle()) {
if (const nsIFrame* parent = frame->GetInFlowParent()) {
frame = parent;
}
}
const intl::Quotes* quotes =
intl::QuotesForLang(frame->StyleFont()->mLanguage);
// If we don't have quote-mark data for the language, use built-in
// defaults.
if (!quotes) {
static const intl::Quotes sDefaultQuotes = {
{0x201c, 0x201d, 0x2018, 0x2019}};
quotes = &sDefaultQuotes;
}
size_t index = (depth == 0 ? 0 : 2); // select first or second pair
index += (mType == StyleContentType::OpenQuote ? 0 : 1); // open or close
result.Append(quotes->mChars[index]);
return result;
}
MOZ_ASSERT(quotesProp.IsQuoteList());
const Span<const StyleQuotePair> quotes = quotesProp.AsQuoteList().AsSpan();
// Reuse the last pair when the depth is greater than the number of
// pairs of quotes. (Also make 'quotes: none' and close-quote from
// a depth of 0 equivalent for the next test.)
if (depth >= static_cast<int32_t>(quotes.Length())) {
depth = static_cast<int32_t>(quotes.Length()) - 1;
}
if (depth == -1) {
// close-quote from a depth of 0 or 'quotes: none'
return result;
}
const StyleQuotePair& pair = quotes[depth];
const StyleOwnedStr& quote =
mType == StyleContentType::OpenQuote ? pair.opening : pair.closing;
result.Assign(NS_ConvertUTF8toUTF16(quote.AsString()));
return result;
}
static int32_t GetDepthBeforeFirstQuoteNode(ContainStyleScope* aScope) {
for (auto* ancestor = aScope->GetParent(); ancestor;
ancestor = ancestor->GetParent()) {
auto& quoteList = ancestor->GetQuoteList();
if (auto* node = static_cast<nsQuoteNode*>(
aScope->GetPrecedingElementInGenConList("eList))) {
return node->DepthAfter();
}
}
return 0;
}
void nsQuoteList::Calc(nsQuoteNode* aNode) {
if (aNode == FirstNode()) {
aNode->mDepthBefore = GetDepthBeforeFirstQuoteNode(mScope);
} else {
aNode->mDepthBefore = Prev(aNode)->DepthAfter();
}
}
void nsQuoteList::RecalcAll() {
for (nsQuoteNode* node = FirstNode(); node; node = Next(node)) {
int32_t oldDepth = node->mDepthBefore;
Calc(node);
if (node->mDepthBefore != oldDepth && node->mText && node->IsRealQuote()) {
node->mText->SetData(node->Text(), IgnoreErrors());
}
}
}
#ifdef DEBUG
void nsQuoteList::PrintChain() {
using StyleContentType = nsQuoteNode::StyleContentType;
printf("Chain: \n");
for (nsQuoteNode* node = FirstNode(); node; node = Next(node)) {
printf(" %p %d - ", static_cast<void*>(node), node->mDepthBefore);
switch (node->mType) {
case StyleContentType::OpenQuote:
printf("open");
break;
case StyleContentType::NoOpenQuote:
printf("noOpen");
break;
case StyleContentType::CloseQuote:
printf("close");
break;
case StyleContentType::NoCloseQuote:
printf("noClose");
break;
default:
printf("unknown!!!");
}
printf(" %d - %d,", node->Depth(), node->DepthAfter());
if (node->mText) {
nsAutoString data;
node->mText->GetData(data);
printf(" \"%s\",", NS_ConvertUTF16toUTF8(data).get());
}
printf("\n");
}
}
#endif
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