/* -*- 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___ */