1/*
2 * Copyright (C) 2012, 2014, 2017 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 "RuleFeature.h"
29#include <wtf/Forward.h>
30
31namespace WebCore {
32
33class Document;
34class Element;
35class MediaQueryEvaluator;
36class RuleSet;
37class SelectorFilter;
38class ShadowRoot;
39class StyleSheetContents;
40
41namespace Style {
42
43class Invalidator {
44public:
45 Invalidator(const Vector<StyleSheetContents*>&, const MediaQueryEvaluator&);
46 Invalidator(const RuleSet&);
47
48 bool dirtiesAllStyle() const { return m_dirtiesAllStyle; }
49 bool hasShadowPseudoElementRulesInAuthorSheet() const { return m_hasShadowPseudoElementRulesInAuthorSheet; }
50 void invalidateStyle(Document&);
51 void invalidateStyle(ShadowRoot&);
52 void invalidateStyle(Element&);
53 void invalidateStyleWithMatchElement(Element&, MatchElement);
54
55private:
56 enum class CheckDescendants { Yes, No };
57 CheckDescendants invalidateIfNeeded(Element&, const SelectorFilter*);
58 void invalidateStyleForTree(Element&, SelectorFilter*);
59 void invalidateStyleForDescendants(Element&, SelectorFilter*);
60
61 std::unique_ptr<RuleSet> m_ownedRuleSet;
62 const RuleSet& m_ruleSet;
63 bool m_dirtiesAllStyle { false };
64 bool m_hasShadowPseudoElementRulesInAuthorSheet { false };
65 bool m_didInvalidateHostChildren { false };
66};
67
68}
69}
70