1/*
2 * Copyright (C) 2016 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "Element.h"
29
30namespace WebCore {
31
32struct InvalidationRuleSet;
33
34namespace Style {
35
36class AttributeChangeInvalidation {
37public:
38 AttributeChangeInvalidation(Element&, const QualifiedName&, const AtomicString& oldValue, const AtomicString& newValue);
39 ~AttributeChangeInvalidation();
40
41private:
42 void invalidateStyle(const QualifiedName&, const AtomicString& oldValue, const AtomicString& newValue);
43 void invalidateStyleWithRuleSets();
44
45 const bool m_isEnabled;
46 Element& m_element;
47
48 Vector<const InvalidationRuleSet*, 4> m_invalidationRuleSets;
49};
50
51inline AttributeChangeInvalidation::AttributeChangeInvalidation(Element& element, const QualifiedName& attributeName, const AtomicString& oldValue, const AtomicString& newValue)
52 : m_isEnabled(element.needsStyleInvalidation())
53 , m_element(element)
54{
55 if (!m_isEnabled)
56 return;
57 invalidateStyle(attributeName, oldValue, newValue);
58 invalidateStyleWithRuleSets();
59}
60
61inline AttributeChangeInvalidation::~AttributeChangeInvalidation()
62{
63 if (!m_isEnabled)
64 return;
65 invalidateStyleWithRuleSets();
66}
67
68}
69}
70