93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/*
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* Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
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* Copyright (C) 2012-2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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namespace WebCore {
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// Must not grow beyond 3 bits, due to packing in StyleProperties.
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enum CSSParserMode {
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HTMLStandardMode,
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HTMLQuirksMode,
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// SVG attributes are parsed in quirks mode but rules differ slightly.
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SVGAttributeMode,
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// @viewport rules are parsed in standards mode but CSSOM modifications (via StylePropertySet)
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// must call parseViewportProperties so needs a special mode.
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CSSViewportRuleMode,
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// User agent stylesheets are parsed in standards mode but also allows internal properties and values.
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UASheetMode,
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// WebVTT places limitations on external resources.
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WebVTTMode
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};
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inline bool isQuirksModeBehavior(CSSParserMode mode)
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{
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return mode == HTMLQuirksMode;
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}
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inline bool isUASheetBehavior(CSSParserMode mode)
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{
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return mode == UASheetMode;
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}
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inline bool isUnitlessValueParsingEnabledForMode(CSSParserMode mode)
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{
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return mode == SVGAttributeMode;
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}
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inline bool isCSSViewportParsingEnabledForMode(CSSParserMode mode)
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{
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return mode == CSSViewportRuleMode;
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}
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// FIXME-NEWPARSER: Next two functions should be removed eventually.
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inline CSSParserMode strictToCSSParserMode(bool inStrictMode)
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{
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return inStrictMode ? HTMLStandardMode : HTMLQuirksMode;
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}
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inline bool isStrictParserMode(CSSParserMode cssParserMode)
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{
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switch (cssParserMode) {
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case UASheetMode:
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case HTMLStandardMode:
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case SVGAttributeMode:
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case WebVTTMode:
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return true;
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case HTMLQuirksMode:
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case CSSViewportRuleMode:
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return false;
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}
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ASSERT_NOT_REACHED();
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return false;
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}
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} // namespace WebCore
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