зеркало из https://github.com/mozilla/gecko-dev.git
95 строки
2.2 KiB
C++
95 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* DOM object representing lists of values in DOM computed style */
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#include "nsDOMCSSValueList.h"
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#include "nsString.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/Move.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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nsDOMCSSValueList::nsDOMCSSValueList(bool aCommaDelimited, bool aReadonly)
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: CSSValue(), mCommaDelimited(aCommaDelimited), mReadonly(aReadonly)
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{
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}
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nsDOMCSSValueList::~nsDOMCSSValueList() = default;
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void
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nsDOMCSSValueList::AppendCSSValue(already_AddRefed<CSSValue> aValue)
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{
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RefPtr<CSSValue> val = aValue;
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mCSSValues.AppendElement(std::move(val));
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}
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void
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nsDOMCSSValueList::GetCssText(nsAString& aCssText)
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{
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aCssText.Truncate();
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uint32_t count = mCSSValues.Length();
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nsAutoString separator;
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if (mCommaDelimited) {
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separator.AssignLiteral(", ");
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}
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else {
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separator.Assign(char16_t(' '));
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}
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nsAutoString tmpStr;
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for (uint32_t i = 0; i < count; ++i) {
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CSSValue *cssValue = mCSSValues[i];
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NS_ASSERTION(cssValue, "Eek! Someone filled the value list with null CSSValues!");
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ErrorResult dummy;
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if (cssValue) {
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cssValue->GetCssText(tmpStr, dummy);
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if (tmpStr.IsEmpty()) {
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#ifdef DEBUG_caillon
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NS_ERROR("Eek! An empty CSSValue! Bad!");
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#endif
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continue;
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}
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// If this isn't the first item in the list, then
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// it's ok to append a separator.
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if (!aCssText.IsEmpty()) {
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aCssText.Append(separator);
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}
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aCssText.Append(tmpStr);
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}
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}
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}
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void
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nsDOMCSSValueList::GetCssText(nsString& aCssText, ErrorResult& aRv)
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{
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GetCssText(aCssText);
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}
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void
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nsDOMCSSValueList::SetCssText(const nsAString& aText, ErrorResult& aRv)
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{
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if (mReadonly) {
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aRv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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MOZ_ASSERT_UNREACHABLE("Can't SetCssText yet: please write me!");
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}
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uint16_t
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nsDOMCSSValueList::CssValueType() const
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{
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return CSSValue::CSS_VALUE_LIST;
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}
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