tor-browser

The Tor Browser
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SVGLengthList.cpp (2130B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "SVGLengthList.h"
      8 
      9 #include "SVGAnimatedLengthList.h"
     10 #include "SVGContentUtils.h"
     11 #include "SVGElement.h"
     12 #include "SVGLength.h"
     13 #include "nsCharSeparatedTokenizer.h"
     14 #include "nsContentUtils.h"
     15 #include "nsError.h"
     16 #include "nsString.h"
     17 
     18 namespace mozilla {
     19 
     20 nsresult SVGLengthList::CopyFrom(const SVGLengthList& rhs) {
     21  if (!mLengths.Assign(rhs.mLengths, fallible)) {
     22    return NS_ERROR_OUT_OF_MEMORY;
     23  }
     24  return NS_OK;
     25 }
     26 
     27 void SVGLengthList::GetValueAsString(nsAString& aValue) const {
     28  aValue.Truncate();
     29  uint32_t last = mLengths.Length() - 1;
     30  for (uint32_t i = 0; i < mLengths.Length(); ++i) {
     31    nsAutoString length;
     32    mLengths[i].GetValueAsString(length);
     33    // We ignore OOM, since it's not useful for us to return an error.
     34    aValue.Append(length);
     35    if (i != last) {
     36      aValue.Append(' ');
     37    }
     38  }
     39 }
     40 
     41 nsresult SVGLengthList::SetValueFromString(const nsAString& aValue) {
     42  SVGLengthList temp;
     43 
     44  nsCharSeparatedTokenizerTemplate<nsContentUtils::IsHTMLWhitespace,
     45                                   nsTokenizerFlags::SeparatorOptional>
     46      tokenizer(aValue, ',');
     47 
     48  while (tokenizer.hasMoreTokens()) {
     49    SVGLength length;
     50    if (!length.SetValueFromString(tokenizer.nextToken())) {
     51      return NS_ERROR_DOM_SYNTAX_ERR;
     52    }
     53    if (!temp.AppendItem(length)) {
     54      return NS_ERROR_OUT_OF_MEMORY;
     55    }
     56  }
     57  if (tokenizer.separatorAfterCurrentToken()) {
     58    return NS_ERROR_DOM_SYNTAX_ERR;  // trailing comma
     59  }
     60  mLengths = std::move(temp.mLengths);
     61  return NS_OK;
     62 }
     63 
     64 bool SVGLengthList::operator==(const SVGLengthList& rhs) const {
     65  if (Length() != rhs.Length()) {
     66    return false;
     67  }
     68  for (uint32_t i = 0; i < Length(); ++i) {
     69    if (!(mLengths[i] == rhs.mLengths[i])) {
     70      return false;
     71    }
     72  }
     73  return true;
     74 }
     75 
     76 }  // namespace mozilla