/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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"

#include "mozilla/ErrorResult.h"

#include "mozilla/dom/Text.h"

using namespace mozilla;

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()->AsText()->SetText(*Text(), false);

  }

  return dirty;

}

const nsString*

nsQuoteNode::Text()

{

  NS_ASSERTION(mType == StyleContentType::OpenQuote ||

               mType == StyleContentType::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 = StyleContentType::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(), IgnoreErrors());

  }

}

#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 StyleContentType::OpenQuote:

          printf("open");

          break;

        case StyleContentType::NoOpenQuote:

          printf("noOpen");

          break;

        case StyleContentType::CloseQuote:

          printf("close");

          break;

        case StyleContentType::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