dom/svg/SVGLengthList.cpp

   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 #include "nsCharSeparatedTokenizer.h"
   9 #include "nsContentUtils.h"
  10 #include "nsError.h"
  11 #include "nsString.h"
  12 #include "SVGElement.h"
  13 #include "SVGAnimatedLengthList.h"
  14 #include "SVGContentUtils.h"
  15 #include "SVGLength.h"
  16
  17 namespace mozilla {
  18
  19 nsresult SVGLengthList::CopyFrom(const SVGLengthList& rhs) {
  20   if (!mLengths.Assign(rhs.mLengths, fallible)) {
  21     return NS_ERROR_OUT_OF_MEMORY;
  22   }
  23   return NS_OK;
  24 }
  25
  26 void SVGLengthList::GetValueAsString(nsAString& aValue) const {
  27   aValue.Truncate();
  28   uint32_t last = mLengths.Length() - 1;
  29   for (uint32_t i = 0; i < mLengths.Length(); ++i) {
  30     nsAutoString length;
  31     mLengths[i].GetValueAsString(length);
  32     // We ignore OOM, since it's not useful for us to return an error.
  33     aValue.Append(length);
  34     if (i != last) {
  35       aValue.Append(' ');
  36     }
  37   }
  38 }
  39
  40 nsresult SVGLengthList::SetValueFromString(const nsAString& aValue) {
  41   SVGLengthList temp;
  42
  43   nsCharSeparatedTokenizerTemplate<nsContentUtils::IsHTMLWhitespace,
  44                                    nsTokenizerFlags::SeparatorOptional>
  45       tokenizer(aValue, ',');
  46
  47   while (tokenizer.hasMoreTokens()) {
  48     SVGLength length;
  49     if (!length.SetValueFromString(tokenizer.nextToken())) {
  50       return NS_ERROR_DOM_SYNTAX_ERR;
  51     }
  52     if (!temp.AppendItem(length)) {
  53       return NS_ERROR_OUT_OF_MEMORY;
  54     }
  55   }
  56   if (tokenizer.separatorAfterCurrentToken()) {
  57     return NS_ERROR_DOM_SYNTAX_ERR;  // trailing comma
  58   }
  59   mLengths = std::move(temp.mLengths);
  60   return NS_OK;
  61 }
  62
  63 bool SVGLengthList::operator==(const SVGLengthList& rhs) const {
  64   if (Length() != rhs.Length()) {
  65     return false;
  66   }
  67   for (uint32_t i = 0; i < Length(); ++i) {
  68     if (!(mLengths[i] == rhs.mLengths[i])) {
  69       return false;
  70     }
  71   }
  72   return true;
  73 }
  74
  75 }  // namespace mozilla