1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/base/nsQuoteList.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,92 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* implementation of quotes for the CSS 'content' property */
1.10 +
1.11 +#ifndef nsQuoteList_h___
1.12 +#define nsQuoteList_h___
1.13 +
1.14 +#include "mozilla/Attributes.h"
1.15 +#include "nsGenConList.h"
1.16 +
1.17 +struct nsQuoteNode : public nsGenConNode {
1.18 + // open-quote, close-quote, no-open-quote, or no-close-quote
1.19 + const nsStyleContentType mType;
1.20 +
1.21 + // Quote depth before this quote, which is always non-negative.
1.22 + int32_t mDepthBefore;
1.23 +
1.24 + nsQuoteNode(nsStyleContentType& aType, uint32_t aContentIndex)
1.25 + : nsGenConNode(aContentIndex)
1.26 + , mType(aType)
1.27 + , mDepthBefore(0)
1.28 + {
1.29 + NS_ASSERTION(aType == eStyleContentType_OpenQuote ||
1.30 + aType == eStyleContentType_CloseQuote ||
1.31 + aType == eStyleContentType_NoOpenQuote ||
1.32 + aType == eStyleContentType_NoCloseQuote,
1.33 + "incorrect type");
1.34 + NS_ASSERTION(aContentIndex <= INT32_MAX, "out of range");
1.35 + }
1.36 +
1.37 + virtual bool InitTextFrame(nsGenConList* aList,
1.38 + nsIFrame* aPseudoFrame, nsIFrame* aTextFrame) MOZ_OVERRIDE;
1.39 +
1.40 + // is this 'open-quote' or 'no-open-quote'?
1.41 + bool IsOpenQuote() {
1.42 + return mType == eStyleContentType_OpenQuote ||
1.43 + mType == eStyleContentType_NoOpenQuote;
1.44 + }
1.45 +
1.46 + // is this 'close-quote' or 'no-close-quote'?
1.47 + bool IsCloseQuote() {
1.48 + return !IsOpenQuote();
1.49 + }
1.50 +
1.51 + // is this 'open-quote' or 'close-quote'?
1.52 + bool IsRealQuote() {
1.53 + return mType == eStyleContentType_OpenQuote ||
1.54 + mType == eStyleContentType_CloseQuote;
1.55 + }
1.56 +
1.57 + // Depth of the quote for *this* node. Either non-negative or -1.
1.58 + // -1 means this is a closing quote that tried to decrement the
1.59 + // counter below zero (which means no quote should be rendered).
1.60 + int32_t Depth() {
1.61 + return IsOpenQuote() ? mDepthBefore : mDepthBefore - 1;
1.62 + }
1.63 +
1.64 + // always non-negative
1.65 + int32_t DepthAfter() {
1.66 + return IsOpenQuote() ? mDepthBefore + 1
1.67 + : (mDepthBefore == 0 ? 0 : mDepthBefore - 1);
1.68 + }
1.69 +
1.70 + // The text that should be displayed for this quote.
1.71 + const nsString* Text();
1.72 +};
1.73 +
1.74 +class nsQuoteList : public nsGenConList {
1.75 +private:
1.76 + nsQuoteNode* FirstNode() { return static_cast<nsQuoteNode*>(mFirstNode); }
1.77 +public:
1.78 + // assign the correct |mDepthBefore| value to a node that has been inserted
1.79 + // Should be called immediately after calling |Insert|.
1.80 + void Calc(nsQuoteNode* aNode);
1.81 +
1.82 + nsQuoteNode* Next(nsQuoteNode* aNode) {
1.83 + return static_cast<nsQuoteNode*>(nsGenConList::Next(aNode));
1.84 + }
1.85 + nsQuoteNode* Prev(nsQuoteNode* aNode) {
1.86 + return static_cast<nsQuoteNode*>(nsGenConList::Prev(aNode));
1.87 + }
1.88 +
1.89 + void RecalcAll();
1.90 +#ifdef DEBUG
1.91 + void PrintChain();
1.92 +#endif
1.93 +};
1.94 +
1.95 +#endif /* nsQuoteList_h___ */
