Bug 1856663 - Add more chunks for Android mochitest-plain. r=jmaher,taskgraph-reviewe...
[gecko.git] / layout / inspector / ServoStyleRuleMap.cpp
blob2285ec8298b6acb07d99960f45cd0ce0cb147088
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #include "mozilla/ServoStyleRuleMap.h"
9 #include "mozilla/css/GroupRule.h"
10 #include "mozilla/dom/CSSImportRule.h"
11 #include "mozilla/dom/CSSRuleBinding.h"
12 #include "mozilla/dom/CSSStyleRule.h"
13 #include "mozilla/dom/Document.h"
14 #include "mozilla/dom/Element.h"
15 #include "mozilla/dom/ShadowRoot.h"
16 #include "mozilla/IntegerRange.h"
17 #include "mozilla/ServoStyleSet.h"
18 #include "mozilla/StyleSheetInlines.h"
19 #include "nsStyleSheetService.h"
21 using namespace mozilla::dom;
23 namespace mozilla {
25 void ServoStyleRuleMap::EnsureTable(ServoStyleSet& aStyleSet) {
26 if (!IsEmpty()) {
27 return;
29 aStyleSet.EnumerateStyleSheets(
30 [&](StyleSheet& aSheet) { FillTableFromStyleSheet(aSheet); });
33 void ServoStyleRuleMap::EnsureTable(ShadowRoot& aShadowRoot) {
34 if (!IsEmpty()) {
35 return;
37 for (auto index : IntegerRange(aShadowRoot.SheetCount())) {
38 FillTableFromStyleSheet(*aShadowRoot.SheetAt(index));
40 for (const auto& sheet : aShadowRoot.AdoptedStyleSheets()) {
41 FillTableFromStyleSheet(*sheet);
45 void ServoStyleRuleMap::SheetAdded(StyleSheet& aStyleSheet) {
46 if (!IsEmpty()) {
47 FillTableFromStyleSheet(aStyleSheet);
51 void ServoStyleRuleMap::SheetCloned(StyleSheet& aStyleSheet) {
52 // Invalidate all data inside. We could probably track down all the individual
53 // rules that changed etc, but it doesn't seem worth it.
55 // TODO: We can't do this until GetCssRulesInternal stops cloning.
56 // mTable.Clear();
59 void ServoStyleRuleMap::SheetRemoved(StyleSheet& aStyleSheet) {
60 // Invalidate all data inside. This isn't strictly necessary since
61 // we should always get update from document before new queries come.
62 // But it is probably still safer if we try to avoid having invalid
63 // pointers inside. Also if the document keep adding and removing
64 // stylesheets, this would also prevent us from infinitely growing
65 // memory usage.
66 mTable.Clear();
69 void ServoStyleRuleMap::RuleAdded(StyleSheet& aStyleSheet,
70 css::Rule& aStyleRule) {
71 if (!IsEmpty()) {
72 FillTableFromRule(aStyleRule);
76 void ServoStyleRuleMap::RuleRemoved(StyleSheet& aStyleSheet,
77 css::Rule& aStyleRule) {
78 if (IsEmpty()) {
79 return;
82 switch (aStyleRule.Type()) {
83 case StyleCssRuleType::Style:
84 case StyleCssRuleType::Import:
85 case StyleCssRuleType::Media:
86 case StyleCssRuleType::Supports:
87 case StyleCssRuleType::LayerBlock:
88 case StyleCssRuleType::Container:
89 case StyleCssRuleType::Document: {
90 // See the comment in SheetRemoved.
91 mTable.Clear();
92 break;
94 case StyleCssRuleType::LayerStatement:
95 case StyleCssRuleType::FontFace:
96 case StyleCssRuleType::Page:
97 case StyleCssRuleType::Property:
98 case StyleCssRuleType::Keyframes:
99 case StyleCssRuleType::Keyframe:
100 case StyleCssRuleType::Namespace:
101 case StyleCssRuleType::CounterStyle:
102 case StyleCssRuleType::FontFeatureValues:
103 case StyleCssRuleType::FontPaletteValues:
104 break;
108 size_t ServoStyleRuleMap::SizeOfIncludingThis(
109 MallocSizeOf aMallocSizeOf) const {
110 size_t n = aMallocSizeOf(this);
111 n += mTable.ShallowSizeOfExcludingThis(aMallocSizeOf);
112 return n;
115 void ServoStyleRuleMap::FillTableFromRule(css::Rule& aRule) {
116 switch (aRule.Type()) {
117 case StyleCssRuleType::Style: {
118 auto& rule = static_cast<CSSStyleRule&>(aRule);
119 mTable.InsertOrUpdate(rule.Raw(), &rule);
120 [[fallthrough]];
122 case StyleCssRuleType::LayerBlock:
123 case StyleCssRuleType::Media:
124 case StyleCssRuleType::Supports:
125 case StyleCssRuleType::Container:
126 case StyleCssRuleType::Document: {
127 auto& rule = static_cast<css::GroupRule&>(aRule);
128 FillTableFromRuleList(*rule.CssRules());
129 break;
131 case StyleCssRuleType::Import: {
132 auto& rule = static_cast<CSSImportRule&>(aRule);
133 if (auto* sheet = rule.GetStyleSheet()) {
134 FillTableFromStyleSheet(*sheet);
136 break;
138 case StyleCssRuleType::LayerStatement:
139 case StyleCssRuleType::FontFace:
140 case StyleCssRuleType::Page:
141 case StyleCssRuleType::Property:
142 case StyleCssRuleType::Keyframes:
143 case StyleCssRuleType::Keyframe:
144 case StyleCssRuleType::Namespace:
145 case StyleCssRuleType::CounterStyle:
146 case StyleCssRuleType::FontFeatureValues:
147 case StyleCssRuleType::FontPaletteValues:
148 break;
152 void ServoStyleRuleMap::FillTableFromRuleList(ServoCSSRuleList& aRuleList) {
153 for (uint32_t i : IntegerRange(aRuleList.Length())) {
154 FillTableFromRule(*aRuleList.GetRule(i));
158 void ServoStyleRuleMap::FillTableFromStyleSheet(StyleSheet& aSheet) {
159 if (aSheet.IsComplete()) {
160 FillTableFromRuleList(*aSheet.GetCssRulesInternal());
164 } // namespace mozilla