content/svg/content/src/SVGStringList.cpp
author Robert Longson <longsonr@gmail.com>
Sat, 31 Dec 2011 09:44:03 +0000
changeset 84835 883815d2edb2e7104f7c0c7cf1164db083b2b4b8
child 88471 03ff5cb466daba5aac03c37ae6fde63f64d80f8a
permissions -rw-r--r--
Bug 607854 - implement SVGTests interface. r=jwatt

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 *
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla SVG Project code.
 *
 * The Initial Developer of the Original Code is
 * Robert Longson <longsonr@gmail.com>
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
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#include "mozilla/Util.h"

#include "SVGStringList.h"
#include "nsSVGElement.h"
#include "nsDOMError.h"
#include "nsString.h"
#include "nsSVGUtils.h"
#include "nsTextFormatter.h"
#include "nsWhitespaceTokenizer.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsMathUtils.h"

namespace mozilla {

nsresult
SVGStringList::CopyFrom(const SVGStringList& rhs)
{
  if (!mStrings.SetCapacity(rhs.Length())) {
    // Yes, we do want fallible alloc here
    return NS_ERROR_OUT_OF_MEMORY;
  }
  mStrings = rhs.mStrings;
  mIsSet = true;
  return NS_OK;
}

void
SVGStringList::GetValue(nsAString& aValue, bool aIsCommaSeparated) const
{
  aValue.Truncate();
  PRUint32 last = mStrings.Length() - 1;
  for (PRUint32 i = 0; i < mStrings.Length(); ++i) {
    aValue.Append(mStrings[i]);
    if (i != last) {
      if (aIsCommaSeparated) {
        aValue.Append(',');
      }
      aValue.Append(' ');
    }
  }
}

nsresult
SVGStringList::SetValue(const nsAString& aValue, bool aIsCommaSeparated)
{
  SVGStringList temp;

  if (aIsCommaSeparated) {
    nsCharSeparatedTokenizerTemplate<IsSVGWhitespace>
      tokenizer(aValue, ',');

    while (tokenizer.hasMoreTokens()) {
      if (!temp.AppendItem(tokenizer.nextToken())) {
        return NS_ERROR_OUT_OF_MEMORY;
      }
    }
    if (tokenizer.lastTokenEndedWithSeparator()) {
      return NS_ERROR_DOM_SYNTAX_ERR; // trailing comma
    }
  } else {
    nsWhitespaceTokenizer tokenizer(aValue);

    while (tokenizer.hasMoreTokens()) {
      if (!temp.AppendItem(tokenizer.nextToken())) {
        return NS_ERROR_OUT_OF_MEMORY;
      }
    }
  }

  return CopyFrom(temp);
}

} // namespace mozilla