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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2013 Apple Inc. All rights
reserved. | 5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2013 Apple Inc. All rights
reserved. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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1073 | 1073 |
1074 // This is used by FrameSelection to denote when the active-state of the page ha
s changed | 1074 // This is used by FrameSelection to denote when the active-state of the page ha
s changed |
1075 // independent of the focused element changing. | 1075 // independent of the focused element changing. |
1076 void ContainerNode::focusStateChanged() | 1076 void ContainerNode::focusStateChanged() |
1077 { | 1077 { |
1078 // If we're just changing the window's active state and the focused node has
no | 1078 // If we're just changing the window's active state and the focused node has
no |
1079 // layoutObject we can just ignore the state change. | 1079 // layoutObject we can just ignore the state change. |
1080 if (!layoutObject()) | 1080 if (!layoutObject()) |
1081 return; | 1081 return; |
1082 | 1082 |
1083 if (computedStyle()->affectedByFocus() && computedStyle()->hasPseudoStyle(FI
RST_LETTER)) | 1083 if (computedStyle()->affectedByFocus()) { |
1084 setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::cre
ateWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Focus)); | 1084 StyleChangeType changeType = computedStyle()->hasPseudoStyle(FIRST_LETTE
R) ? SubtreeStyleChange : LocalStyleChange; |
1085 else if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByFoc
us()) | 1085 setNeedsStyleRecalc(changeType, StyleChangeReasonForTracing::createWithE
xtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Focus)); |
| 1086 } |
| 1087 if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByFocus()) |
1086 toElement(this)->pseudoStateChanged(CSSSelector::PseudoFocus); | 1088 toElement(this)->pseudoStateChanged(CSSSelector::PseudoFocus); |
1087 else if (computedStyle()->affectedByFocus()) | |
1088 setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::creat
eWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Focus)); | |
1089 | 1089 |
1090 LayoutTheme::theme().controlStateChanged(*layoutObject(), FocusControlState)
; | 1090 LayoutTheme::theme().controlStateChanged(*layoutObject(), FocusControlState)
; |
1091 } | 1091 } |
1092 | 1092 |
1093 void ContainerNode::setFocus(bool received) | 1093 void ContainerNode::setFocus(bool received) |
1094 { | 1094 { |
1095 // Recurse up author shadow trees to mark shadow hosts if it matches :focus. | 1095 // Recurse up author shadow trees to mark shadow hosts if it matches :focus. |
1096 // TODO(kochi): Handle UA shadows which marks multiple nodes as focused such
as | 1096 // TODO(kochi): Handle UA shadows which marks multiple nodes as focused such
as |
1097 // <input type="date"> the same way as author shadow. | 1097 // <input type="date"> the same way as author shadow. |
1098 if (ShadowRoot* root = containingShadowRoot()) { | 1098 if (ShadowRoot* root = containingShadowRoot()) { |
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1126 | 1126 |
1127 void ContainerNode::setActive(bool down) | 1127 void ContainerNode::setActive(bool down) |
1128 { | 1128 { |
1129 if (down == active()) | 1129 if (down == active()) |
1130 return; | 1130 return; |
1131 | 1131 |
1132 Node::setActive(down); | 1132 Node::setActive(down); |
1133 | 1133 |
1134 // FIXME: Why does this not need to handle the display: none transition like
:hover does? | 1134 // FIXME: Why does this not need to handle the display: none transition like
:hover does? |
1135 if (layoutObject()) { | 1135 if (layoutObject()) { |
1136 if (computedStyle()->affectedByActive() && computedStyle()->hasPseudoSty
le(FIRST_LETTER)) | 1136 if (computedStyle()->affectedByActive()) { |
1137 setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing:
:createWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Activ
e)); | 1137 StyleChangeType changeType = computedStyle()->hasPseudoStyle(FIRST_L
ETTER) ? SubtreeStyleChange : LocalStyleChange; |
1138 else if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedB
yActive()) | 1138 setNeedsStyleRecalc(changeType, StyleChangeReasonForTracing::createW
ithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Active)); |
| 1139 } |
| 1140 if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByActi
ve()) |
1139 toElement(this)->pseudoStateChanged(CSSSelector::PseudoActive); | 1141 toElement(this)->pseudoStateChanged(CSSSelector::PseudoActive); |
1140 else if (computedStyle()->affectedByActive()) | |
1141 setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::c
reateWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Active)
); | |
1142 | 1142 |
1143 LayoutTheme::theme().controlStateChanged(*layoutObject(), PressedControl
State); | 1143 LayoutTheme::theme().controlStateChanged(*layoutObject(), PressedControl
State); |
1144 } | 1144 } |
1145 } | 1145 } |
1146 | 1146 |
1147 void ContainerNode::setHovered(bool over) | 1147 void ContainerNode::setHovered(bool over) |
1148 { | 1148 { |
1149 if (over == hovered()) | 1149 if (over == hovered()) |
1150 return; | 1150 return; |
1151 | 1151 |
1152 Node::setHovered(over); | 1152 Node::setHovered(over); |
1153 | 1153 |
1154 // If :hover sets display: none we lose our hover but still need to recalc o
ur style. | 1154 // If :hover sets display: none we lose our hover but still need to recalc o
ur style. |
1155 if (!layoutObject()) { | 1155 if (!layoutObject()) { |
1156 if (over) | 1156 if (over) |
1157 return; | 1157 return; |
1158 if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByHove
r()) | 1158 if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByHove
r()) |
1159 toElement(this)->pseudoStateChanged(CSSSelector::PseudoHover); | 1159 toElement(this)->pseudoStateChanged(CSSSelector::PseudoHover); |
1160 else | 1160 else |
1161 setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::c
reateWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Hover))
; | 1161 setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::c
reateWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Hover))
; |
1162 return; | 1162 return; |
1163 } | 1163 } |
1164 | 1164 |
1165 if (computedStyle()->affectedByHover() && computedStyle()->hasPseudoStyle(FI
RST_LETTER)) | 1165 if (computedStyle()->affectedByHover()) { |
1166 setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::cre
ateWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Hover)); | 1166 StyleChangeType changeType = computedStyle()->hasPseudoStyle(FIRST_LETTE
R) ? SubtreeStyleChange : LocalStyleChange; |
1167 else if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByHov
er()) | 1167 setNeedsStyleRecalc(changeType, StyleChangeReasonForTracing::createWithE
xtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Hover)); |
| 1168 } |
| 1169 if (isElementNode() && toElement(this)->childrenOrSiblingsAffectedByHover()) |
1168 toElement(this)->pseudoStateChanged(CSSSelector::PseudoHover); | 1170 toElement(this)->pseudoStateChanged(CSSSelector::PseudoHover); |
1169 else if (computedStyle()->affectedByHover()) | |
1170 setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::creat
eWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Hover)); | |
1171 | 1171 |
1172 LayoutTheme::theme().controlStateChanged(*layoutObject(), HoverControlState)
; | 1172 LayoutTheme::theme().controlStateChanged(*layoutObject(), HoverControlState)
; |
1173 } | 1173 } |
1174 | 1174 |
1175 PassRefPtrWillBeRawPtr<HTMLCollection> ContainerNode::children() | 1175 PassRefPtrWillBeRawPtr<HTMLCollection> ContainerNode::children() |
1176 { | 1176 { |
1177 return ensureCachedCollection<HTMLCollection>(NodeChildren); | 1177 return ensureCachedCollection<HTMLCollection>(NodeChildren); |
1178 } | 1178 } |
1179 | 1179 |
1180 unsigned ContainerNode::countChildren() const | 1180 unsigned ContainerNode::countChildren() const |
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1293 ASSERT(isElementNode() || isShadowRoot()); | 1293 ASSERT(isElementNode() || isShadowRoot()); |
1294 ensureRareData().setRestyleFlag(mask); | 1294 ensureRareData().setRestyleFlag(mask); |
1295 } | 1295 } |
1296 | 1296 |
1297 void ContainerNode::recalcChildStyle(StyleRecalcChange change) | 1297 void ContainerNode::recalcChildStyle(StyleRecalcChange change) |
1298 { | 1298 { |
1299 ASSERT(document().inStyleRecalc()); | 1299 ASSERT(document().inStyleRecalc()); |
1300 ASSERT(change >= UpdatePseudoElements || childNeedsStyleRecalc()); | 1300 ASSERT(change >= UpdatePseudoElements || childNeedsStyleRecalc()); |
1301 ASSERT(!needsStyleRecalc()); | 1301 ASSERT(!needsStyleRecalc()); |
1302 | 1302 |
1303 if (change < Force && hasRareData() && childNeedsStyleRecalc()) | |
1304 checkForChildrenAdjacentRuleChanges(); | |
1305 | |
1306 // This loop is deliberately backwards because we use insertBefore in the la
yout tree, and want to avoid | 1303 // This loop is deliberately backwards because we use insertBefore in the la
yout tree, and want to avoid |
1307 // a potentially n^2 loop to find the insertion point while resolving style.
Having us start from the last | 1304 // a potentially n^2 loop to find the insertion point while resolving style.
Having us start from the last |
1308 // child and work our way back means in the common case, we'll find the inse
rtion point in O(1) time. | 1305 // child and work our way back means in the common case, we'll find the inse
rtion point in O(1) time. |
1309 // See crbug.com/288225 | 1306 // See crbug.com/288225 |
1310 StyleResolver& styleResolver = document().ensureStyleResolver(); | 1307 StyleResolver& styleResolver = document().ensureStyleResolver(); |
1311 Text* lastTextNode = nullptr; | 1308 Text* lastTextNode = nullptr; |
1312 for (Node* child = lastChild(); child; child = child->previousSibling()) { | 1309 for (Node* child = lastChild(); child; child = child->previousSibling()) { |
1313 if (child->isTextNode()) { | 1310 if (child->isTextNode()) { |
1314 toText(child)->recalcTextStyle(change, lastTextNode); | 1311 toText(child)->recalcTextStyle(change, lastTextNode); |
1315 lastTextNode = toText(child); | 1312 lastTextNode = toText(child); |
1316 } else if (child->isElementNode()) { | 1313 } else if (child->isElementNode()) { |
1317 Element* element = toElement(child); | 1314 Element* element = toElement(child); |
1318 if (element->shouldCallRecalcStyle(change)) | 1315 if (element->shouldCallRecalcStyle(change)) |
1319 element->recalcStyle(change, lastTextNode); | 1316 element->recalcStyle(change, lastTextNode); |
1320 else if (element->supportsStyleSharing()) | 1317 else if (element->supportsStyleSharing()) |
1321 styleResolver.addToStyleSharingList(*element); | 1318 styleResolver.addToStyleSharingList(*element); |
1322 if (element->layoutObject()) | 1319 if (element->layoutObject()) |
1323 lastTextNode = nullptr; | 1320 lastTextNode = nullptr; |
1324 } | 1321 } |
1325 } | 1322 } |
1326 } | 1323 } |
1327 | 1324 |
1328 void ContainerNode::checkForChildrenAdjacentRuleChanges() | |
1329 { | |
1330 bool hasDirectAdjacentRules = childrenAffectedByDirectAdjacentRules(); | |
1331 bool hasIndirectAdjacentRules = childrenAffectedByIndirectAdjacentRules(); | |
1332 | |
1333 if (!hasDirectAdjacentRules && !hasIndirectAdjacentRules) | |
1334 return; | |
1335 | |
1336 unsigned forceCheckOfNextElementCount = 0; | |
1337 bool forceCheckOfAnyElementSibling = false; | |
1338 Document& document = this->document(); | |
1339 | |
1340 for (Element* child = ElementTraversal::firstChild(*this); child; child = El
ementTraversal::nextSibling(*child)) { | |
1341 bool childRulesChanged = child->needsStyleRecalc() && child->styleChange
Type() >= SubtreeStyleChange; | |
1342 | |
1343 if (forceCheckOfNextElementCount || forceCheckOfAnyElementSibling) | |
1344 child->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForT
racing::create(StyleChangeReason::SiblingSelector)); | |
1345 | |
1346 if (childRulesChanged && hasDirectAdjacentRules) | |
1347 forceCheckOfNextElementCount = document.styleEngine().maxDirectAdjac
entSelectors(); | |
1348 else if (forceCheckOfNextElementCount) | |
1349 --forceCheckOfNextElementCount; | |
1350 | |
1351 forceCheckOfAnyElementSibling = forceCheckOfAnyElementSibling || (childR
ulesChanged && hasIndirectAdjacentRules); | |
1352 } | |
1353 } | |
1354 | |
1355 void ContainerNode::checkForSiblingStyleChanges(SiblingCheckType changeType, Nod
e* nodeBeforeChange, Node* nodeAfterChange) | 1325 void ContainerNode::checkForSiblingStyleChanges(SiblingCheckType changeType, Nod
e* nodeBeforeChange, Node* nodeAfterChange) |
1356 { | 1326 { |
1357 if (!inActiveDocument() || document().hasPendingForcedStyleRecalc() || style
ChangeType() >= SubtreeStyleChange) | 1327 if (!inActiveDocument() || document().hasPendingForcedStyleRecalc() || style
ChangeType() >= SubtreeStyleChange) |
1358 return; | 1328 return; |
1359 | 1329 |
1360 // Forward positional selectors include nth-child, nth-of-type, first-of-typ
e and only-of-type. | 1330 // Forward positional selectors include nth-child, nth-of-type, first-of-typ
e and only-of-type. |
1361 // The indirect adjacent selector is the ~ selector. | 1331 // The indirect adjacent selector is the ~ selector. |
1362 // Backward positional selectors include nth-last-child, nth-last-of-type, l
ast-of-type and only-of-type. | 1332 // Backward positional selectors include nth-last-child, nth-last-of-type, l
ast-of-type and only-of-type. |
1363 // We have to invalidate everything following the insertion point in the for
ward and indirect adjacent case, | 1333 // We have to invalidate everything following the insertion point in the for
ward and indirect adjacent case, |
1364 // and everything before the insertion point in the backward case. | 1334 // and everything before the insertion point in the backward case. |
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1410 | 1380 |
1411 // This is the last child element removal case. The parser callback case
is similar to node removal as well in that we need to change the last child | 1381 // This is the last child element removal case. The parser callback case
is similar to node removal as well in that we need to change the last child |
1412 // to match now. | 1382 // to match now. |
1413 if ((changeType == SiblingElementRemoved || changeType == FinishedParsin
gChildren) && lastChildElement == elementBeforeChange && lastChildElement && las
tChildElement->affectedByLastChildRules()) | 1383 if ((changeType == SiblingElementRemoved || changeType == FinishedParsin
gChildren) && lastChildElement == elementBeforeChange && lastChildElement && las
tChildElement->affectedByLastChildRules()) |
1414 lastChildElement->setNeedsStyleRecalc(SubtreeStyleChange, StyleChang
eReasonForTracing::create(StyleChangeReason::SiblingSelector)); | 1384 lastChildElement->setNeedsStyleRecalc(SubtreeStyleChange, StyleChang
eReasonForTracing::create(StyleChangeReason::SiblingSelector)); |
1415 } | 1385 } |
1416 | 1386 |
1417 // The + selector. We need to invalidate the first element following the cha
nge. It is the only possible element | 1387 // The + selector. We need to invalidate the first element following the cha
nge. It is the only possible element |
1418 // that could be affected by this DOM change. | 1388 // that could be affected by this DOM change. |
1419 if (childrenAffectedByDirectAdjacentRules() && nodeAfterChange) { | 1389 if (childrenAffectedByDirectAdjacentRules() && nodeAfterChange) { |
1420 if (Element* elementAfterChange = nodeAfterChange->isElementNode() ? toE
lement(nodeAfterChange) : ElementTraversal::nextSibling(*nodeAfterChange)) | 1390 Element* elementAfterChange = nodeAfterChange->isElementNode() ? toEleme
nt(nodeAfterChange) : ElementTraversal::nextSibling(*nodeAfterChange); |
| 1391 for (unsigned i = document().styleEngine().maxDirectAdjacentSelectors();
i && elementAfterChange; --i, elementAfterChange = ElementTraversal::nextSiblin
g(*elementAfterChange)) |
1421 elementAfterChange->setNeedsStyleRecalc(SubtreeStyleChange, StyleCha
ngeReasonForTracing::create(StyleChangeReason::SiblingSelector)); | 1392 elementAfterChange->setNeedsStyleRecalc(SubtreeStyleChange, StyleCha
ngeReasonForTracing::create(StyleChangeReason::SiblingSelector)); |
1422 } | 1393 } |
1423 } | 1394 } |
1424 | 1395 |
1425 void ContainerNode::invalidateNodeListCachesInAncestors(const QualifiedName* att
rName, Element* attributeOwnerElement) | 1396 void ContainerNode::invalidateNodeListCachesInAncestors(const QualifiedName* att
rName, Element* attributeOwnerElement) |
1426 { | 1397 { |
1427 if (hasRareData() && (!attrName || isAttributeNode())) { | 1398 if (hasRareData() && (!attrName || isAttributeNode())) { |
1428 if (NodeListsNodeData* lists = rareData()->nodeLists()) { | 1399 if (NodeListsNodeData* lists = rareData()->nodeLists()) { |
1429 if (ChildNodeList* childNodeList = lists->childNodeList(*this)) | 1400 if (ChildNodeList* childNodeList = lists->childNodeList(*this)) |
1430 childNodeList->invalidateCache(); | 1401 childNodeList->invalidateCache(); |
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1523 return true; | 1494 return true; |
1524 | 1495 |
1525 if (node->isElementNode() && toElement(node)->shadow()) | 1496 if (node->isElementNode() && toElement(node)->shadow()) |
1526 return true; | 1497 return true; |
1527 | 1498 |
1528 return false; | 1499 return false; |
1529 } | 1500 } |
1530 #endif | 1501 #endif |
1531 | 1502 |
1532 } // namespace blink | 1503 } // namespace blink |
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