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/*
* Copyright (C) 2016-2023 Apple Inc. All rights reserved.
* Copyright (C) 2024 Samuel Weinig <sam@webkit.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CSSPropertyParserConsumer+SVG.h"
#include "CSSParserContext.h"
#include "CSSParserTokenRange.h"
#include "CSSPrimitiveValue.h"
#include "CSSPropertyParserConsumer+Color.h"
#include "CSSPropertyParserConsumer+Ident.h"
#include "CSSPropertyParserConsumer+LengthPercentage.h"
#include "CSSPropertyParserConsumer+Number.h"
#include "CSSPropertyParserConsumer+Primitives.h"
#include "CSSPropertyParserConsumer+URL.h"
#include "CSSValueKeywords.h"
#include "CSSValueList.h"
namespace WebCore {
namespace CSSPropertyParserHelpers {
RefPtr<CSSValue> consumePaint(CSSParserTokenRange& range, const CSSParserContext& context)
{
// <paint> = none | <color> | <url> [none | <color>]? | context-fill | context-stroke
// https://svgwg.org/svg2-draft/painting.html#SpecifyingStrokePaint
if (range.peek().id() == CSSValueNone)
return consumeIdent(range);
auto url = consumeURL(range);
if (url) {
RefPtr<CSSValue> parsedValue;
if (range.peek().id() == CSSValueNone)
parsedValue = consumeIdent(range);
else
parsedValue = consumeColor(range, context);
if (parsedValue)
return CSSValueList::createSpaceSeparated(url.releaseNonNull(), parsedValue.releaseNonNull());
return url;
}
return consumeColor(range, context);
}
RefPtr<CSSValue> consumePaintOrder(CSSParserTokenRange& range, const CSSParserContext&)
{
// <'paint-order'> = normal | [ fill || stroke || markers ]
// https://svgwg.org/svg2-draft/painting.html#PaintOrderProperty
if (range.peek().id() == CSSValueNormal)
return consumeIdent(range);
Vector<CSSValueID, 3> paintTypeList;
RefPtr<CSSPrimitiveValue> fill;
RefPtr<CSSPrimitiveValue> stroke;
RefPtr<CSSPrimitiveValue> markers;
do {
CSSValueID id = range.peek().id();
if (id == CSSValueFill && !fill)
fill = consumeIdent(range);
else if (id == CSSValueStroke && !stroke)
stroke = consumeIdent(range);
else if (id == CSSValueMarkers && !markers)
markers = consumeIdent(range);
else
return nullptr;
paintTypeList.append(id);
} while (!range.atEnd());
// After parsing we serialize the paint-order list. Since it is not possible to
// pop a last list items from CSSValueList without bigger cost, we create the
// list after parsing.
CSSValueID firstPaintOrderType = paintTypeList.at(0);
CSSValueListBuilder paintOrderList;
switch (firstPaintOrderType) {
case CSSValueFill:
case CSSValueStroke:
paintOrderList.append(firstPaintOrderType == CSSValueFill ? fill.releaseNonNull() : stroke.releaseNonNull());
if (paintTypeList.size() > 1) {
if (paintTypeList.at(1) == CSSValueMarkers)
paintOrderList.append(markers.releaseNonNull());
}
break;
case CSSValueMarkers:
paintOrderList.append(markers.releaseNonNull());
if (paintTypeList.size() > 1) {
if (paintTypeList.at(1) == CSSValueStroke)
paintOrderList.append(stroke.releaseNonNull());
}
break;
default:
ASSERT_NOT_REACHED();
return nullptr;
}
return CSSValueList::createSpaceSeparated(WTFMove(paintOrderList));
}
RefPtr<CSSValue> consumeStrokeDasharray(CSSParserTokenRange& range, const CSSParserContext& context)
{
// <'stroke-dasharray'> = none | [ [ <length-percentage> | <number> ]+ ]#
// https://svgwg.org/svg2-draft/painting.html#StrokeDashing
CSSValueID id = range.peek().id();
if (id == CSSValueNone)
return consumeIdent(range);
CSSValueListBuilder dashes;
do {
RefPtr<CSSPrimitiveValue> dash = consumeLengthPercentage(range, context, HTMLStandardMode, ValueRange::NonNegative, UnitlessQuirk::Forbid, UnitlessZeroQuirk::Forbid);
if (!dash)
dash = consumeNumber(range, context, ValueRange::NonNegative);
if (!dash || (consumeCommaIncludingWhitespace(range) && range.atEnd()))
return nullptr;
dashes.append(dash.releaseNonNull());
} while (!range.atEnd());
return CSSValueList::createCommaSeparated(WTFMove(dashes));
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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