/* * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. * Copyright (C) 2012-2020 Apple Inc. All rights reserved. * * 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 THE COPYRIGHT HOLDER “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 THE COPYRIGHT HOLDER BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * 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. */ #pragma once namespace WebCore { // Must not grow beyond 3 bits, due to packing in StyleProperties. enum CSSParserMode { HTMLStandardMode, HTMLQuirksMode, // SVG attributes are parsed in quirks mode but rules differ slightly. SVGAttributeMode, // @viewport rules are parsed in standards mode but CSSOM modifications (via StylePropertySet) // must call parseViewportProperties so needs a special mode. CSSViewportRuleMode, // User agent stylesheets are parsed in standards mode but also allows internal properties and values. UASheetMode, // WebVTT places limitations on external resources. WebVTTMode }; inline bool isQuirksModeBehavior(CSSParserMode mode) { return mode == HTMLQuirksMode; } inline bool isUASheetBehavior(CSSParserMode mode) { return mode == UASheetMode; } inline bool isUnitLessValueParsingEnabledForMode(CSSParserMode mode) { return mode == SVGAttributeMode; } inline bool isCSSViewportParsingEnabledForMode(CSSParserMode mode) { return mode == CSSViewportRuleMode; } // FIXME-NEWPARSER: Next two functions should be removed eventually. inline CSSParserMode strictToCSSParserMode(bool inStrictMode) { return inStrictMode ? HTMLStandardMode : HTMLQuirksMode; } inline bool isStrictParserMode(CSSParserMode cssParserMode) { switch (cssParserMode) { case UASheetMode: case HTMLStandardMode: case SVGAttributeMode: case WebVTTMode: return true; case HTMLQuirksMode: case CSSViewportRuleMode: return false; } ASSERT_NOT_REACHED(); return false; } } // namespace WebCore