1/*
2 * Copyright (C) 2018-2019 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "SVGMemberAccessor.h"
29
30namespace WebCore {
31
32template<typename OwnerType, typename PropertyType>
33class SVGPointerMemberAccessor : public SVGMemberAccessor<OwnerType> {
34 using Base = SVGMemberAccessor<OwnerType>;
35
36public:
37 SVGPointerMemberAccessor(Ref<PropertyType> OwnerType::*property)
38 : m_property(property)
39 {
40 }
41
42 Ref<PropertyType>& property(OwnerType& owner) const { return owner.*m_property; }
43 const Ref<PropertyType>& property(const OwnerType& owner) const { return owner.*m_property; }
44
45 void detach(const OwnerType& owner) const override
46 {
47 property(owner)->detach();
48 }
49
50 Optional<String> synchronize(const OwnerType& owner) const override
51 {
52 return property(owner)->synchronize();
53 }
54
55protected:
56 template<typename AccessorType, Ref<PropertyType> OwnerType::*property>
57 static const SVGMemberAccessor<OwnerType>& singleton()
58 {
59 static NeverDestroyed<AccessorType> propertyAccessor { property };
60 return propertyAccessor;
61 }
62
63 Ref<PropertyType> OwnerType::*m_property;
64};
65
66}
67