third_party/blink/renderer/core/css/css_unicode_range_value.h

/*
 * Copyright (C) 2008 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 APPLE COMPUTER, 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 COMPUTER, INC. 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_UNICODE_RANGE_VALUE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_UNICODE_RANGE_VALUE_H_

#include "third_party/blink/renderer/core/css/css_value.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
#include "third_party/blink/renderer/platform/wtf/text/unicode.h"

namespace blink {
namespace cssvalue {

class CSSUnicodeRangeValue : public CSSValue {
 public:
  CSSUnicodeRangeValue(UChar32 from, UChar32 to)
      : CSSValue(kUnicodeRangeClass), from_(from), to_(to) {}

  UChar32 From() const { return from_; }
  UChar32 To() const { return to_; }

  String CustomCSSText() const;

  bool Equals(const CSSUnicodeRangeValue&) const;

  void TraceAfterDispatch(blink::Visitor* visitor) {
    CSSValue::TraceAfterDispatch(visitor);
  }

 private:
  UChar32 from_;
  UChar32 to_;
};

}  // namespace cssvalue

template <>
struct DowncastTraits<cssvalue::CSSUnicodeRangeValue> {
  static bool AllowFrom(const CSSValue& value) {
    return value.IsUnicodeRangeValue();
  }
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_UNICODE_RANGE_VALUE_H_