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-rw-r--r--layout/base/nsQuoteList.h92
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diff --git a/layout/base/nsQuoteList.h b/layout/base/nsQuoteList.h
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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___ */