// Copyright 2014 The Chromium Authors. All rights reserved. // Copyright (C) 2016-2020 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: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "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 // OWNER OR CONTRIBUTORS 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 #include "CSSPropertyNames.h" #include "CSSValueKeywords.h" #include <wtf/Forward.h> namespace WebCore { class CSSValue; template<typename> struct SRGBA; struct CSSParserContext; class CSSParserFastPaths { public: // Parses simple values like '10px' or 'green', but makes no guarantees about handling any property completely. static RefPtr<CSSValue> maybeParseValue(CSSPropertyID, StringView, const CSSParserContext&); // Properties handled here shouldn't be explicitly handled in CSSPropertyParser. static bool isKeywordPropertyID(CSSPropertyID); // Returns whether a property may be handled by the fast path but has other // non-keyword values which should be handled by the CSSPropertyParser. static bool isPartialKeywordPropertyID(CSSPropertyID); static bool isValidKeywordPropertyAndValue(CSSPropertyID, CSSValueID, const CSSParserContext&); // Parses numeric and named colors. static Optional<SRGBA<uint8_t>> parseSimpleColor(StringView, bool strict = false); static Optional<SRGBA<uint8_t>> parseHexColor(StringView); // Hex colors of length 3, 4, 6, or 8, without leading "#". static Optional<SRGBA<uint8_t>> parseNamedColor(StringView); }; } // namespace WebCore