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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CSSPropertyAPI_h
#define CSSPropertyAPI_h
#include "core/CSSPropertyNames.h"
#include "wtf/Allocator.h"
namespace blink {
class CSSValue;
class CSSParserContext;
class CSSParserTokenRange;
// We will use this API to represent all functions used for property-specific
// logic inside the blink style engine. All specific properties are subclasses
// of CSSPropertyAPI.
//
// To add a new property using this API:
// - Make a class that implements CSSPropertyAPI, and implement the static
// methods.
// - Update the cssPropertyDescriptors array in CSSPropertyDescriptor.cpp to
// call GET_DESCRIPTOR(classname).
//
// To add new functions using this API:
// - New functions and static variables can be added in this class. A default
// implementation of functions can optionally be provided.
// - When adding new functions, also add them to GET_DESCRIPTOR, and the get()
// method in CSSPropertyDescriptors.cpp, and the descriptor struct in
// CSSPropertyDescriptor.h.
class CSSPropertyAPI {
STATIC_ONLY(CSSPropertyAPI);
public:
// Parses a single CSS property and returns the corresponding CSSValue. If the
// input is invalid it returns nullptr.
static const CSSValue* parseSingleValue(CSSParserTokenRange&,
const CSSParserContext*);
};
} // namespace blink
#endif // CSSPropertyAPI_h
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