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/*
* Copyright (C) 2014 Google 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ENUMERATION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ENUMERATION_H_
#include "base/check_op.h"
#include "third_party/blink/renderer/core/svg/properties/svg_property.h"
#include "third_party/blink/renderer/core/svg/svg_parsing_error.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class SVGEnumerationMap;
template <typename Enum>
const SVGEnumerationMap& GetEnumerationMap();
class SVGEnumeration : public SVGPropertyBase {
public:
// SVGEnumeration does not have a tear-off type.
typedef void TearOffType;
typedef uint16_t PrimitiveType;
SVGEnumeration(uint16_t value, const SVGEnumerationMap& map)
: value_(value), map_(map) {}
template <typename Enum>
explicit SVGEnumeration(Enum new_value)
: SVGEnumeration(new_value, GetEnumerationMap<Enum>()) {}
uint16_t Value() const {
return value_ <= MaxExposedEnumValue() ? value_ : 0;
}
void SetValue(uint16_t);
// Typed accessors. These should generally be used instead of the above ones.
template <typename Enum>
Enum EnumValue() const {
DCHECK_LE(value_, MaxInternalEnumValue());
return static_cast<Enum>(value_);
}
template <typename Enum>
void SetEnumValue(Enum value) {
SetValue(value);
}
// SVGPropertyBase:
SVGEnumeration* Clone() const {
return MakeGarbageCollected<SVGEnumeration>(value_, map_);
}
String ValueAsString() const override;
SVGParsingError SetValueAsString(const String&);
void Add(const SVGPropertyBase*, const SVGElement*) override;
void CalculateAnimatedValue(
const SMILAnimationEffectParameters&,
float percentage,
unsigned repeat_count,
const SVGPropertyBase* from,
const SVGPropertyBase* to,
const SVGPropertyBase* to_at_end_of_duration_value,
const SVGElement*) override;
float CalculateDistance(const SVGPropertyBase* to,
const SVGElement*) const override;
static AnimatedPropertyType ClassType() { return kAnimatedEnumeration; }
AnimatedPropertyType GetType() const override { return ClassType(); }
// This is the maximum value that is exposed as an IDL constant on the
// relevant interface.
uint16_t MaxExposedEnumValue() const;
void SetInitial(unsigned value) { SetValue(static_cast<uint16_t>(value)); }
static constexpr int kInitialValueBits = 3;
protected:
// This is the maximum value of all the internal enumeration values.
// This assumes that the map is sorted on the enumeration value.
uint16_t MaxInternalEnumValue() const;
// Used by SVGMarkerOrientEnumeration.
virtual void NotifyChange() {}
uint16_t value_;
const SVGEnumerationMap& map_;
};
template <>
struct DowncastTraits<SVGEnumeration> {
static bool AllowFrom(const SVGPropertyBase& value) {
return value.GetType() == SVGEnumeration::ClassType();
}
};
#define DECLARE_SVG_ENUM_MAP(cpp_enum_type) \
template <> \
const SVGEnumerationMap& GetEnumerationMap<cpp_enum_type>()
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ENUMERATION_H_
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