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-rw-r--r--layout/base/nsQuoteList.cpp118
1 files changed, 118 insertions, 0 deletions
diff --git a/layout/base/nsQuoteList.cpp b/layout/base/nsQuoteList.cpp
new file mode 100644
index 000000000..9f742f06a
--- /dev/null
+++ b/layout/base/nsQuoteList.cpp
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+// vim:cindent:ts=2:et:sw=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 */
+
+#include "nsQuoteList.h"
+#include "nsReadableUtils.h"
+#include "nsIContent.h"
+
+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()->SetText(*Text(), false);
+ }
+ return dirty;
+}
+
+const nsString*
+nsQuoteNode::Text()
+{
+ NS_ASSERTION(mType == eStyleContentType_OpenQuote ||
+ mType == eStyleContentType_CloseQuote,
+ "should only be called when mText should be non-null");
+ const nsStyleQuoteValues::QuotePairArray& quotePairs =
+ mPseudoFrame->StyleList()->GetQuotePairs();
+ int32_t quotesCount = quotePairs.Length(); // 0 if 'quotes:none'
+ int32_t quoteDepth = Depth();
+
+ // 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 (quoteDepth >= quotesCount)
+ quoteDepth = quotesCount - 1;
+
+ const nsString* result;
+ if (quoteDepth == -1) {
+ // close-quote from a depth of 0 or 'quotes: none' (we want a node
+ // with the empty string so dynamic changes are easier to handle)
+ result = &EmptyString();
+ } else {
+ result = eStyleContentType_OpenQuote == mType
+ ? &quotePairs[quoteDepth].first
+ : &quotePairs[quoteDepth].second;
+ }
+ return result;
+}
+
+void
+nsQuoteList::Calc(nsQuoteNode* aNode)
+{
+ if (aNode == FirstNode()) {
+ aNode->mDepthBefore = 0;
+ } 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());
+ }
+}
+
+#ifdef DEBUG
+void
+nsQuoteList::PrintChain()
+{
+ printf("Chain: \n");
+ for (nsQuoteNode* node = FirstNode(); node; node = Next(node)) {
+ printf(" %p %d - ", static_cast<void*>(node), node->mDepthBefore);
+ switch(node->mType) {
+ case (eStyleContentType_OpenQuote):
+ printf("open");
+ break;
+ case (eStyleContentType_NoOpenQuote):
+ printf("noOpen");
+ break;
+ case (eStyleContentType_CloseQuote):
+ printf("close");
+ break;
+ case (eStyleContentType_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