gecko-dev/dom/svg/SVGLengthList.cpp
Simon Giesecke 4a023dd2aa Bug 1679987 - Make nsTokenizerFlags a scoped enum and make them a template argument to nsTCharSeparatedTokenizer. r=xpcom-reviewers,necko-reviewers,nika
There are no uses of nsTCharSeparatedTokenizer that require run-time
configuration of the flags, so having them a compile-time template
argument allows for generation of more efficient code.

This might not matter that much now, but a subsequent patch will add another
flag to allow merging the implementation of nsTSubstring::Split with
nsTCharSeparatedTokenizer, through which the compile-time evaluation will
become more relevant.

Differential Revision: https://phabricator.services.mozilla.com/D99368
2020-12-16 19:10:21 +00:00

75 lines
2.0 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 "SVGLengthList.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsError.h"
#include "nsString.h"
#include "SVGElement.h"
#include "SVGAnimatedLengthList.h"
#include "SVGContentUtils.h"
#include "SVGLength.h"
namespace mozilla {
nsresult SVGLengthList::CopyFrom(const SVGLengthList& rhs) {
if (!mLengths.Assign(rhs.mLengths, fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
void SVGLengthList::GetValueAsString(nsAString& aValue) const {
aValue.Truncate();
uint32_t last = mLengths.Length() - 1;
for (uint32_t i = 0; i < mLengths.Length(); ++i) {
nsAutoString length;
mLengths[i].GetValueAsString(length);
// We ignore OOM, since it's not useful for us to return an error.
aValue.Append(length);
if (i != last) {
aValue.Append(' ');
}
}
}
nsresult SVGLengthList::SetValueFromString(const nsAString& aValue) {
SVGLengthList temp;
nsCharSeparatedTokenizerTemplate<nsContentUtils::IsHTMLWhitespace,
nsTokenizerFlags::SeparatorOptional>
tokenizer(aValue, ',');
while (tokenizer.hasMoreTokens()) {
SVGLength length;
if (!length.SetValueFromString(tokenizer.nextToken())) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
if (!temp.AppendItem(length)) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
if (tokenizer.separatorAfterCurrentToken()) {
return NS_ERROR_DOM_SYNTAX_ERR; // trailing comma
}
return CopyFrom(temp);
}
bool SVGLengthList::operator==(const SVGLengthList& rhs) const {
if (Length() != rhs.Length()) {
return false;
}
for (uint32_t i = 0; i < Length(); ++i) {
if (!(mLengths[i] == rhs.mLengths[i])) {
return false;
}
}
return true;
}
} // namespace mozilla