gecko-dev/dom/svg/SVGStringList.cpp

75 строки
1.8 KiB
C++

/* -*- 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/. */
#include "SVGStringList.h"
#include "nsError.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsString.h"
#include "nsWhitespaceTokenizer.h"
#include "SVGContentUtils.h"
namespace mozilla {
nsresult
SVGStringList::CopyFrom(const SVGStringList& rhs)
{
if (!mStrings.SetCapacity(rhs.Length(), fallible)) {
// 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) const
{
aValue.Truncate();
uint32_t last = mStrings.Length() - 1;
for (uint32_t i = 0; i < mStrings.Length(); ++i) {
aValue.Append(mStrings[i]);
if (i != last) {
if (mIsCommaSeparated) {
aValue.Append(',');
}
aValue.Append(' ');
}
}
}
nsresult
SVGStringList::SetValue(const nsAString& aValue)
{
SVGStringList temp;
if (mIsCommaSeparated) {
nsCharSeparatedTokenizerTemplate<IsSVGWhitespace>
tokenizer(aValue, ',');
while (tokenizer.hasMoreTokens()) {
if (!temp.AppendItem(tokenizer.nextToken())) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
if (tokenizer.separatorAfterCurrentToken()) {
return NS_ERROR_DOM_SYNTAX_ERR; // trailing comma
}
} else {
nsWhitespaceTokenizerTemplate<IsSVGWhitespace> tokenizer(aValue);
while (tokenizer.hasMoreTokens()) {
if (!temp.AppendItem(tokenizer.nextToken())) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
}
return CopyFrom(temp);
}
} // namespace mozilla