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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 */
#ifndef nsQuoteList_h___
#define nsQuoteList_h___
#include "mozilla/Attributes.h"
#include "nsGenConList.h"
struct nsQuoteNode : public nsGenConNode {
// open-quote, close-quote, no-open-quote, or no-close-quote
const nsStyleContentType mType;
// Quote depth before this quote, which is always non-negative.
int32_t mDepthBefore;
nsQuoteNode(nsStyleContentType& aType, uint32_t aContentIndex)
: nsGenConNode(aContentIndex)
, mType(aType)
, mDepthBefore(0)
{
NS_ASSERTION(aType == eStyleContentType_OpenQuote ||
aType == eStyleContentType_CloseQuote ||
aType == eStyleContentType_NoOpenQuote ||
aType == eStyleContentType_NoCloseQuote,
"incorrect type");
NS_ASSERTION(aContentIndex <= INT32_MAX, "out of range");
}
virtual bool InitTextFrame(nsGenConList* aList,
nsIFrame* aPseudoFrame, nsIFrame* aTextFrame) override;
// is this 'open-quote' or 'no-open-quote'?
bool IsOpenQuote() {
return mType == eStyleContentType_OpenQuote ||
mType == eStyleContentType_NoOpenQuote;
}
// is this 'close-quote' or 'no-close-quote'?
bool IsCloseQuote() {
return !IsOpenQuote();
}
// is this 'open-quote' or 'close-quote'?
bool IsRealQuote() {
return mType == eStyleContentType_OpenQuote ||
mType == eStyleContentType_CloseQuote;
}
// Depth of the quote for *this* node. Either non-negative or -1.
// -1 means this is a closing quote that tried to decrement the
// counter below zero (which means no quote should be rendered).
int32_t Depth() {
return IsOpenQuote() ? mDepthBefore : mDepthBefore - 1;
}
// always non-negative
int32_t DepthAfter() {
return IsOpenQuote() ? mDepthBefore + 1
: (mDepthBefore == 0 ? 0 : mDepthBefore - 1);
}
// The text that should be displayed for this quote.
const nsString* Text();
};
class nsQuoteList : public nsGenConList {
private:
nsQuoteNode* FirstNode() { return static_cast<nsQuoteNode*>(mList.getFirst()); }
public:
// assign the correct |mDepthBefore| value to a node that has been inserted
// Should be called immediately after calling |Insert|.
void Calc(nsQuoteNode* aNode);
nsQuoteNode* Next(nsQuoteNode* aNode) {
return static_cast<nsQuoteNode*>(nsGenConList::Next(aNode));
}
nsQuoteNode* Prev(nsQuoteNode* aNode) {
return static_cast<nsQuoteNode*>(nsGenConList::Prev(aNode));
}
void RecalcAll();
#ifdef DEBUG
void PrintChain();
#endif
};
#endif /* nsQuoteList_h___ */
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