gecko-dev/layout/style/nsDOMCSSValueList.cpp

71 строка
1.9 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/. */
/* DOM object representing lists of values in DOM computed style */
#include "nsDOMCSSValueList.h"
#include <utility>
#include "mozilla/ErrorResult.h"
#include "nsString.h"
using namespace mozilla;
using namespace mozilla::dom;
nsDOMCSSValueList::nsDOMCSSValueList(bool aCommaDelimited)
: CSSValue(), mCommaDelimited(aCommaDelimited) {}
nsDOMCSSValueList::~nsDOMCSSValueList() = default;
void nsDOMCSSValueList::AppendCSSValue(already_AddRefed<CSSValue> aValue) {
RefPtr<CSSValue> val = aValue;
mCSSValues.AppendElement(std::move(val));
}
void nsDOMCSSValueList::GetCssText(nsAString& aCssText) {
aCssText.Truncate();
uint32_t count = mCSSValues.Length();
nsAutoString separator;
if (mCommaDelimited) {
separator.AssignLiteral(", ");
} else {
separator.Assign(char16_t(' '));
}
nsAutoString tmpStr;
for (uint32_t i = 0; i < count; ++i) {
CSSValue* cssValue = mCSSValues[i];
NS_ASSERTION(cssValue,
"Eek! Someone filled the value list with null CSSValues!");
ErrorResult dummy;
if (cssValue) {
cssValue->GetCssText(tmpStr, dummy);
if (tmpStr.IsEmpty()) {
#ifdef DEBUG_caillon
NS_ERROR("Eek! An empty CSSValue! Bad!");
#endif
continue;
}
// If this isn't the first item in the list, then
// it's ok to append a separator.
if (!aCssText.IsEmpty()) {
aCssText.Append(separator);
}
aCssText.Append(tmpStr);
}
}
}
void nsDOMCSSValueList::GetCssText(nsString& aCssText, ErrorResult& aRv) {
GetCssText(aCssText);
}