#include "config.h"
#include "Node.h"
#include "Attr.h"
#include "CSSParser.h"
#include "CSSRule.h"
#include "CSSRuleList.h"
#include "CSSSelector.h"
#include "CSSSelectorList.h"
#include "CSSStyleRule.h"
#include "CSSStyleSelector.h"
#include "CSSStyleSheet.h"
#include "ChildNodeList.h"
#include "ClassNodeList.h"
#include "ContextMenuController.h"
#include "DOMImplementation.h"
#include "Document.h"
#include "DynamicNodeList.h"
#include "Element.h"
#include "Event.h"
#include "EventException.h"
#include "EventHandler.h"
#include "EventListener.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLNames.h"
#include "InspectorTimelineAgent.h"
#include "KeyboardEvent.h"
#include "Logging.h"
#include "MappedAttribute.h"
#include "MouseEvent.h"
#include "MutationEvent.h"
#include "NameNodeList.h"
#include "NamedNodeMap.h"
#include "NodeRareData.h"
#include "Page.h"
#include "PlatformMouseEvent.h"
#include "PlatformWheelEvent.h"
#include "ProcessingInstruction.h"
#include "ProgressEvent.h"
#include "RegisteredEventListener.h"
#include "RenderObject.h"
#include "ScriptController.h"
#include "SelectorNodeList.h"
#include "StringBuilder.h"
#include "TagNodeList.h"
#include "Text.h"
#include "TextEvent.h"
#include "UIEvent.h"
#include "UIEventWithKeyState.h"
#include "WebKitAnimationEvent.h"
#include "WebKitTransitionEvent.h"
#include "WheelEvent.h"
#include "XMLNames.h"
#include "htmlediting.h"
#include <wtf/text/CString.h>
#include <wtf/HashSet.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/RefCountedLeakCounter.h>
#include <wtf/UnusedParam.h>
#if ENABLE(DOM_STORAGE)
#include "StorageEvent.h"
#endif
#if ENABLE(SVG)
#include "SVGElementInstance.h"
#include "SVGUseElement.h"
#endif
#if ENABLE(XHTMLMP)
#include "HTMLNoScriptElement.h"
#endif
#if USE(JSC)
#include <runtime/JSGlobalData.h>
#endif
#define DUMP_NODE_STATISTICS 0
using namespace std;
namespace WebCore {
using namespace HTMLNames;
static HashSet<Node*>* gNodesDispatchingSimulatedClicks = 0;
bool Node::isSupported(const String& feature, const String& version)
{
return DOMImplementation::hasFeature(feature, version);
}
#if DUMP_NODE_STATISTICS
static HashSet<Node*> liveNodeSet;
#endif
void Node::dumpStatistics()
{
#if DUMP_NODE_STATISTICS
size_t nodesWithRareData = 0;
size_t elementNodes = 0;
size_t attrNodes = 0;
size_t textNodes = 0;
size_t cdataNodes = 0;
size_t commentNodes = 0;
size_t entityReferenceNodes = 0;
size_t entityNodes = 0;
size_t piNodes = 0;
size_t documentNodes = 0;
size_t docTypeNodes = 0;
size_t fragmentNodes = 0;
size_t notationNodes = 0;
size_t xpathNSNodes = 0;
HashMap<String, size_t> perTagCount;
size_t attributes = 0;
size_t mappedAttributes = 0;
size_t mappedAttributesWithStyleDecl = 0;
size_t attributesWithAttr = 0;
size_t attrMaps = 0;
for (HashSet<Node*>::iterator it = liveNodeSet.begin(); it != liveNodeSet.end(); ++it) {
Node* node = *it;
if (node->hasRareData())
++nodesWithRareData;
switch (node->nodeType()) {
case ELEMENT_NODE: {
++elementNodes;
Element* element = static_cast<Element*>(node);
pair<HashMap<String, size_t>::iterator, bool> result = perTagCount.add(element->tagName(), 1);
if (!result.second)
result.first->second++;
if (NamedNodeMap* attrMap = element->attributes(true)) {
attributes += attrMap->length();
++attrMaps;
for (unsigned i = 0; i < attrMap->length(); ++i) {
Attribute* attr = attrMap->attributeItem(i);
if (attr->attr())
++attributesWithAttr;
if (attr->isMappedAttribute()) {
++mappedAttributes;
if (attr->style())
++mappedAttributesWithStyleDecl;
}
}
}
break;
}
case ATTRIBUTE_NODE: {
++attrNodes;
break;
}
case TEXT_NODE: {
++textNodes;
break;
}
case CDATA_SECTION_NODE: {
++cdataNodes;
break;
}
case COMMENT_NODE: {
++commentNodes;
break;
}
case ENTITY_REFERENCE_NODE: {
++entityReferenceNodes;
break;
}
case ENTITY_NODE: {
++entityNodes;
break;
}
case PROCESSING_INSTRUCTION_NODE: {
++piNodes;
break;
}
case DOCUMENT_NODE: {
++documentNodes;
break;
}
case DOCUMENT_TYPE_NODE: {
++docTypeNodes;
break;
}
case DOCUMENT_FRAGMENT_NODE: {
++fragmentNodes;
break;
}
case NOTATION_NODE: {
++notationNodes;
break;
}
case XPATH_NAMESPACE_NODE: {
++xpathNSNodes;
break;
}
}
}
printf("Number of Nodes: %d\n\n", liveNodeSet.size());
printf("Number of Nodes with RareData: %zu\n\n", nodesWithRareData);
printf("NodeType distrubution:\n");
printf(" Number of Element nodes: %zu\n", elementNodes);
printf(" Number of Attribute nodes: %zu\n", attrNodes);
printf(" Number of Text nodes: %zu\n", textNodes);
printf(" Number of CDATASection nodes: %zu\n", cdataNodes);
printf(" Number of Comment nodes: %zu\n", commentNodes);
printf(" Number of EntityReference nodes: %zu\n", entityReferenceNodes);
printf(" Number of Entity nodes: %zu\n", entityNodes);
printf(" Number of ProcessingInstruction nodes: %zu\n", piNodes);
printf(" Number of Document nodes: %zu\n", documentNodes);
printf(" Number of DocumentType nodes: %zu\n", docTypeNodes);
printf(" Number of DocumentFragment nodes: %zu\n", fragmentNodes);
printf(" Number of Notation nodes: %zu\n", notationNodes);
printf(" Number of XPathNS nodes: %zu\n", xpathNSNodes);
printf("Element tag name distibution:\n");
for (HashMap<String, size_t>::iterator it = perTagCount.begin(); it != perTagCount.end(); ++it)
printf(" Number of <%s> tags: %zu\n", it->first.utf8().data(), it->second);
printf("Attribute Maps:\n");
printf(" Number of Attributes (non-Node and Node): %zu [%zu]\n", attributes, sizeof(Attribute));
printf(" Number of MappedAttributes: %zu [%zu]\n", mappedAttributes, sizeof(MappedAttribute));
printf(" Number of MappedAttributes with a StyleDeclaration: %zu\n", mappedAttributesWithStyleDecl);
printf(" Number of Attributes with an Attr: %zu\n", attributesWithAttr);
printf(" Number of NamedNodeMaps: %zu [%zu]\n", attrMaps, sizeof(NamedNodeMap));
#endif
}
#ifndef NDEBUG
static WTF::RefCountedLeakCounter nodeCounter("WebCoreNode");
static bool shouldIgnoreLeaks = false;
static HashSet<Node*> ignoreSet;
#endif
void Node::startIgnoringLeaks()
{
#ifndef NDEBUG
shouldIgnoreLeaks = true;
#endif
}
void Node::stopIgnoringLeaks()
{
#ifndef NDEBUG
shouldIgnoreLeaks = false;
#endif
}
Node::StyleChange Node::diff(const RenderStyle* s1, const RenderStyle* s2)
{
StyleChange ch = NoInherit;
EDisplay display1 = s1 ? s1->display() : NONE;
bool fl1 = s1 && s1->hasPseudoStyle(FIRST_LETTER);
EDisplay display2 = s2 ? s2->display() : NONE;
bool fl2 = s2 && s2->hasPseudoStyle(FIRST_LETTER);
if (display1 != display2 || fl1 != fl2 || (s1 && s2 && !s1->contentDataEquivalent(s2)))
ch = Detach;
else if (!s1 || !s2)
ch = Inherit;
else if (*s1 == *s2)
ch = NoChange;
else if (s1->inheritedNotEqual(s2))
ch = Inherit;
if (ch == NoChange && s1->childIndex() != s2->childIndex())
ch = NoInherit;
if (ch == NoChange && s1->hasAnyPublicPseudoStyles()) {
for (PseudoId pseudoId = FIRST_PUBLIC_PSEUDOID; ch == NoChange && pseudoId < FIRST_INTERNAL_PSEUDOID; pseudoId = static_cast<PseudoId>(pseudoId + 1)) {
if (s1->hasPseudoStyle(pseudoId)) {
RenderStyle* ps2 = s2->getCachedPseudoStyle(pseudoId);
if (!ps2)
ch = NoInherit;
else {
RenderStyle* ps1 = s1->getCachedPseudoStyle(pseudoId);
ch = ps1 && *ps1 == *ps2 ? NoChange : NoInherit;
}
}
}
}
return ch;
}
void Node::trackForDebugging()
{
#ifndef NDEBUG
if (shouldIgnoreLeaks)
ignoreSet.add(this);
else
nodeCounter.increment();
#endif
#if DUMP_NODE_STATISTICS
liveNodeSet.add(this);
#endif
}
Node::~Node()
{
#ifndef NDEBUG
HashSet<Node*>::iterator it = ignoreSet.find(this);
if (it != ignoreSet.end())
ignoreSet.remove(it);
else
nodeCounter.decrement();
#endif
#if DUMP_NODE_STATISTICS
liveNodeSet.remove(this);
#endif
if (!hasRareData())
ASSERT(!NodeRareData::rareDataMap().contains(this));
else {
if (m_document && rareData()->nodeLists())
m_document->removeNodeListCache();
NodeRareData::NodeRareDataMap& dataMap = NodeRareData::rareDataMap();
NodeRareData::NodeRareDataMap::iterator it = dataMap.find(this);
ASSERT(it != dataMap.end());
delete it->second;
dataMap.remove(it);
}
if (renderer())
detach();
if (m_previous)
m_previous->setNextSibling(0);
if (m_next)
m_next->setPreviousSibling(0);
if (m_document)
m_document->selfOnlyDeref();
}
#ifdef NDEBUG
static inline void setWillMoveToNewOwnerDocumentWasCalled(bool)
{
}
static inline void setDidMoveToNewOwnerDocumentWasCalled(bool)
{
}
#else
static bool willMoveToNewOwnerDocumentWasCalled;
static bool didMoveToNewOwnerDocumentWasCalled;
static void setWillMoveToNewOwnerDocumentWasCalled(bool wasCalled)
{
willMoveToNewOwnerDocumentWasCalled = wasCalled;
}
static void setDidMoveToNewOwnerDocumentWasCalled(bool wasCalled)
{
didMoveToNewOwnerDocumentWasCalled = wasCalled;
}
#endif
void Node::setDocument(Document* document)
{
if (inDocument() || m_document == document)
return;
document->selfOnlyRef();
setWillMoveToNewOwnerDocumentWasCalled(false);
willMoveToNewOwnerDocument();
ASSERT(willMoveToNewOwnerDocumentWasCalled);
#if USE(JSC)
updateDOMNodeDocument(this, m_document, document);
#endif
if (hasRareData() && rareData()->nodeLists()) {
if (m_document)
m_document->removeNodeListCache();
document->addNodeListCache();
}
if (m_document)
m_document->selfOnlyDeref();
m_document = document;
setDidMoveToNewOwnerDocumentWasCalled(false);
didMoveToNewOwnerDocument();
ASSERT(didMoveToNewOwnerDocumentWasCalled);
}
NodeRareData* Node::rareData() const
{
ASSERT(hasRareData());
return NodeRareData::rareDataFromMap(this);
}
NodeRareData* Node::ensureRareData()
{
if (hasRareData())
return rareData();
ASSERT(!NodeRareData::rareDataMap().contains(this));
NodeRareData* data = createRareData();
NodeRareData::rareDataMap().set(this, data);
setFlag(HasRareDataFlag);
return data;
}
NodeRareData* Node::createRareData()
{
return new NodeRareData;
}
short Node::tabIndex() const
{
return hasRareData() ? rareData()->tabIndex() : 0;
}
void Node::setTabIndexExplicitly(short i)
{
ensureRareData()->setTabIndexExplicitly(i);
}
String Node::nodeValue() const
{
return String();
}
void Node::setNodeValue(const String& , ExceptionCode& ec)
{
if (isReadOnlyNode()) {
ec = NO_MODIFICATION_ALLOWED_ERR;
return;
}
}
PassRefPtr<NodeList> Node::childNodes()
{
NodeRareData* data = ensureRareData();
if (!data->nodeLists()) {
data->setNodeLists(NodeListsNodeData::create());
if (document())
document()->addNodeListCache();
}
return ChildNodeList::create(this, data->nodeLists()->m_childNodeListCaches.get());
}
Node *Node::lastDescendant() const
{
Node *n = const_cast<Node *>(this);
while (n && n->lastChild())
n = n->lastChild();
return n;
}
Node* Node::firstDescendant() const
{
Node *n = const_cast<Node *>(this);
while (n && n->firstChild())
n = n->firstChild();
return n;
}
bool Node::insertBefore(PassRefPtr<Node>, Node*, ExceptionCode& ec, bool)
{
ec = HIERARCHY_REQUEST_ERR;
return false;
}
bool Node::replaceChild(PassRefPtr<Node>, Node*, ExceptionCode& ec, bool)
{
ec = HIERARCHY_REQUEST_ERR;
return false;
}
bool Node::removeChild(Node*, ExceptionCode& ec)
{
ec = NOT_FOUND_ERR;
return false;
}
bool Node::appendChild(PassRefPtr<Node>, ExceptionCode& ec, bool)
{
ec = HIERARCHY_REQUEST_ERR;
return false;
}
void Node::remove(ExceptionCode& ec)
{
ref();
if (Node *p = parentNode())
p->removeChild(this, ec);
else
ec = HIERARCHY_REQUEST_ERR;
deref();
}
void Node::normalize()
{
RefPtr<Node> node = this;
while (Node* firstChild = node->firstChild())
node = firstChild;
while (node) {
NodeType type = node->nodeType();
if (type == ELEMENT_NODE)
static_cast<Element*>(node.get())->normalizeAttributes();
if (node == this)
break;
if (type != TEXT_NODE) {
node = node->traverseNextNodePostOrder();
continue;
}
Text* text = static_cast<Text*>(node.get());
if (!text->length()) {
node = node->traverseNextNodePostOrder();
ExceptionCode ec;
text->remove(ec);
continue;
}
while (Node* nextSibling = node->nextSibling()) {
if (nextSibling->nodeType() != TEXT_NODE)
break;
RefPtr<Text> nextText = static_cast<Text*>(nextSibling);
if (!nextText->length()) {
ExceptionCode ec;
nextText->remove(ec);
continue;
}
unsigned offset = text->length();
ExceptionCode ec;
text->appendData(nextText->data(), ec);
document()->textNodesMerged(nextText.get(), offset);
nextText->remove(ec);
}
node = node->traverseNextNodePostOrder();
}
}
const AtomicString& Node::virtualPrefix() const
{
return nullAtom;
}
void Node::setPrefix(const AtomicString& , ExceptionCode& ec)
{
ec = NAMESPACE_ERR;
}
const AtomicString& Node::virtualLocalName() const
{
return nullAtom;
}
const AtomicString& Node::virtualNamespaceURI() const
{
return nullAtom;
}
ContainerNode* Node::addChild(PassRefPtr<Node>)
{
return 0;
}
bool Node::isContentEditable() const
{
return parent() && parent()->isContentEditable();
}
bool Node::isContentRichlyEditable() const
{
return parent() && parent()->isContentRichlyEditable();
}
bool Node::shouldUseInputMethod() const
{
return isContentEditable();
}
RenderBox* Node::renderBox() const
{
return m_renderer && m_renderer->isBox() ? toRenderBox(m_renderer) : 0;
}
RenderBoxModelObject* Node::renderBoxModelObject() const
{
return m_renderer && m_renderer->isBoxModelObject() ? toRenderBoxModelObject(m_renderer) : 0;
}
IntRect Node::getRect() const
{
if (renderer())
return renderer()->absoluteBoundingBoxRect();
return IntRect();
}
bool Node::hasNonEmptyBoundingBox() const
{
RenderBoxModelObject* box = renderBoxModelObject();
if (!box)
return false;
if (!box->borderBoundingBox().isEmpty())
return true;
Vector<IntRect> rects;
FloatPoint absPos = renderer()->localToAbsolute();
renderer()->absoluteRects(rects, absPos.x(), absPos.y());
size_t n = rects.size();
for (size_t i = 0; i < n; ++i)
if (!rects[i].isEmpty())
return true;
return false;
}
inline void Node::setStyleChange(StyleChangeType changeType)
{
m_nodeFlags = (m_nodeFlags & ~StyleChangeMask) | changeType;
}
void Node::setNeedsStyleRecalc(StyleChangeType changeType)
{
if ((changeType != NoStyleChange) && !attached()) return;
if (!(changeType == InlineStyleChange && (styleChangeType() == FullStyleChange || styleChangeType() == SyntheticStyleChange)))
setStyleChange(changeType);
if (styleChangeType() != NoStyleChange) {
for (Node* p = parentNode(); p && !p->childNeedsStyleRecalc(); p = p->parentNode())
p->setChildNeedsStyleRecalc();
if (document()->childNeedsStyleRecalc())
document()->scheduleStyleRecalc();
}
}
static Node* outermostLazyAttachedAncestor(Node* start)
{
Node* p = start;
for (Node* next = p->parentNode(); !next->renderer(); p = next, next = next->parentNode()) {}
return p;
}
void Node::lazyAttach()
{
bool mustDoFullAttach = false;
for (Node* n = this; n; n = n->traverseNextNode(this)) {
if (!n->canLazyAttach()) {
mustDoFullAttach = true;
break;
}
if (n->firstChild())
n->setChildNeedsStyleRecalc();
n->setStyleChange(FullStyleChange);
n->setAttached();
}
if (mustDoFullAttach) {
Node* lazyAttachedAncestor = outermostLazyAttachedAncestor(this);
if (lazyAttachedAncestor->attached())
lazyAttachedAncestor->detach();
lazyAttachedAncestor->attach();
} else {
for (Node* p = parentNode(); p && !p->childNeedsStyleRecalc(); p = p->parentNode())
p->setChildNeedsStyleRecalc();
if (document()->childNeedsStyleRecalc())
document()->scheduleStyleRecalc();
}
}
bool Node::canLazyAttach()
{
return shadowAncestorNode() == this;
}
void Node::setFocus(bool b)
{
if (b || hasRareData())
ensureRareData()->setFocused(b);
}
bool Node::rareDataFocused() const
{
ASSERT(hasRareData());
return rareData()->isFocused();
}
bool Node::supportsFocus() const
{
return hasRareData() && rareData()->tabIndexSetExplicitly();
}
bool Node::isFocusable() const
{
if (!inDocument() || !supportsFocus())
return false;
if (renderer())
ASSERT(!renderer()->needsLayout());
else
ASSERT(!document()->childNeedsStyleRecalc());
if (!renderer() || renderer()->style()->visibility() != VISIBLE)
return false;
return true;
}
bool Node::isKeyboardFocusable(KeyboardEvent*) const
{
return isFocusable() && tabIndex() >= 0;
}
bool Node::isMouseFocusable() const
{
return isFocusable();
}
unsigned Node::nodeIndex() const
{
Node *_tempNode = previousSibling();
unsigned count=0;
for ( count=0; _tempNode; count++ )
_tempNode = _tempNode->previousSibling();
return count;
}
void Node::registerDynamicNodeList(DynamicNodeList* list)
{
NodeRareData* data = ensureRareData();
if (!data->nodeLists()) {
data->setNodeLists(NodeListsNodeData::create());
document()->addNodeListCache();
} else if (!m_document || !m_document->hasNodeListCaches()) {
data->nodeLists()->invalidateCaches();
}
if (list->hasOwnCaches())
data->nodeLists()->m_listsWithCaches.add(list);
}
void Node::unregisterDynamicNodeList(DynamicNodeList* list)
{
ASSERT(rareData());
ASSERT(rareData()->nodeLists());
if (list->hasOwnCaches()) {
NodeRareData* data = rareData();
data->nodeLists()->m_listsWithCaches.remove(list);
if (data->nodeLists()->isEmpty()) {
data->clearNodeLists();
if (document())
document()->removeNodeListCache();
}
}
}
void Node::notifyLocalNodeListsAttributeChanged()
{
if (!hasRareData())
return;
NodeRareData* data = rareData();
if (!data->nodeLists())
return;
if (!isAttributeNode())
data->nodeLists()->invalidateCachesThatDependOnAttributes();
else
data->nodeLists()->invalidateCaches();
if (data->nodeLists()->isEmpty()) {
data->clearNodeLists();
document()->removeNodeListCache();
}
}
void Node::notifyNodeListsAttributeChanged()
{
for (Node *n = this; n; n = n->parentNode())
n->notifyLocalNodeListsAttributeChanged();
}
void Node::notifyLocalNodeListsChildrenChanged()
{
if (!hasRareData())
return;
NodeRareData* data = rareData();
if (!data->nodeLists())
return;
data->nodeLists()->invalidateCaches();
NodeListsNodeData::NodeListSet::iterator end = data->nodeLists()->m_listsWithCaches.end();
for (NodeListsNodeData::NodeListSet::iterator i = data->nodeLists()->m_listsWithCaches.begin(); i != end; ++i)
(*i)->invalidateCache();
if (data->nodeLists()->isEmpty()) {
data->clearNodeLists();
document()->removeNodeListCache();
}
}
void Node::notifyNodeListsChildrenChanged()
{
for (Node* n = this; n; n = n->parentNode())
n->notifyLocalNodeListsChildrenChanged();
}
void Node::removeCachedClassNodeList(ClassNodeList* list, const String& className)
{
ASSERT(rareData());
ASSERT(rareData()->nodeLists());
ASSERT_UNUSED(list, list->hasOwnCaches());
NodeListsNodeData* data = rareData()->nodeLists();
ASSERT_UNUSED(list, list == data->m_classNodeListCache.get(className));
data->m_classNodeListCache.remove(className);
}
void Node::removeCachedNameNodeList(NameNodeList* list, const String& nodeName)
{
ASSERT(rareData());
ASSERT(rareData()->nodeLists());
ASSERT_UNUSED(list, list->hasOwnCaches());
NodeListsNodeData* data = rareData()->nodeLists();
ASSERT_UNUSED(list, list == data->m_nameNodeListCache.get(nodeName));
data->m_nameNodeListCache.remove(nodeName);
}
void Node::removeCachedTagNodeList(TagNodeList* list, const QualifiedName& name)
{
ASSERT(rareData());
ASSERT(rareData()->nodeLists());
ASSERT_UNUSED(list, list->hasOwnCaches());
NodeListsNodeData* data = rareData()->nodeLists();
ASSERT_UNUSED(list, list == data->m_tagNodeListCache.get(name.impl()));
data->m_tagNodeListCache.remove(name.impl());
}
Node *Node::traverseNextNode(const Node *stayWithin) const
{
if (firstChild())
return firstChild();
if (this == stayWithin)
return 0;
if (nextSibling())
return nextSibling();
const Node *n = this;
while (n && !n->nextSibling() && (!stayWithin || n->parentNode() != stayWithin))
n = n->parentNode();
if (n)
return n->nextSibling();
return 0;
}
Node *Node::traverseNextSibling(const Node *stayWithin) const
{
if (this == stayWithin)
return 0;
if (nextSibling())
return nextSibling();
const Node *n = this;
while (n && !n->nextSibling() && (!stayWithin || n->parentNode() != stayWithin))
n = n->parentNode();
if (n)
return n->nextSibling();
return 0;
}
Node* Node::traverseNextNodePostOrder() const
{
Node* next = nextSibling();
if (!next)
return parentNode();
while (Node* firstChild = next->firstChild())
next = firstChild;
return next;
}
Node *Node::traversePreviousNode(const Node *stayWithin) const
{
if (this == stayWithin)
return 0;
if (previousSibling()) {
Node *n = previousSibling();
while (n->lastChild())
n = n->lastChild();
return n;
}
return parentNode();
}
Node *Node::traversePreviousNodePostOrder(const Node *stayWithin) const
{
if (lastChild())
return lastChild();
if (this == stayWithin)
return 0;
if (previousSibling())
return previousSibling();
const Node *n = this;
while (n && !n->previousSibling() && (!stayWithin || n->parentNode() != stayWithin))
n = n->parentNode();
if (n)
return n->previousSibling();
return 0;
}
Node* Node::traversePreviousSiblingPostOrder(const Node* stayWithin) const
{
if (this == stayWithin)
return 0;
if (previousSibling())
return previousSibling();
const Node *n = this;
while (n && !n->previousSibling() && (!stayWithin || n->parentNode() != stayWithin))
n = n->parentNode();
if (n)
return n->previousSibling();
return 0;
}
void Node::checkSetPrefix(const AtomicString& prefix, ExceptionCode& ec)
{
if (isReadOnlyNode()) {
ec = NO_MODIFICATION_ALLOWED_ERR;
return;
}
const AtomicString& nodeNamespaceURI = namespaceURI();
if ((nodeNamespaceURI.isEmpty() && !prefix.isEmpty())
|| (prefix == xmlAtom && nodeNamespaceURI != XMLNames::xmlNamespaceURI)) {
ec = NAMESPACE_ERR;
return;
}
}
bool Node::canReplaceChild(Node* newChild, Node*)
{
if (newChild->nodeType() != DOCUMENT_FRAGMENT_NODE) {
if (!childTypeAllowed(newChild->nodeType()))
return false;
} else {
for (Node *n = newChild->firstChild(); n; n = n->nextSibling()) {
if (!childTypeAllowed(n->nodeType()))
return false;
}
}
return true;
}
void Node::checkReplaceChild(Node* newChild, Node* oldChild, ExceptionCode& ec)
{
if (!newChild) {
ec = NOT_FOUND_ERR;
return;
}
if (isReadOnlyNode()) {
ec = NO_MODIFICATION_ALLOWED_ERR;
return;
}
bool shouldAdoptChild = false;
if (newChild->document() != document()) {
if (!newChild->inDocument()) {
shouldAdoptChild = true;
} else {
ec = WRONG_DOCUMENT_ERR;
return;
}
}
if (newChild == this || isDescendantOf(newChild)) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
if (!canReplaceChild(newChild, oldChild)) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
if (shouldAdoptChild)
for (Node* node = newChild; node; node = node->traverseNextNode(newChild))
node->setDocument(document());
}
void Node::checkAddChild(Node *newChild, ExceptionCode& ec)
{
if (!newChild) {
ec = NOT_FOUND_ERR;
return;
}
if (isReadOnlyNode()) {
ec = NO_MODIFICATION_ALLOWED_ERR;
return;
}
bool shouldAdoptChild = false;
if (newChild->document() != document()) {
if (!newChild->inDocument()) {
shouldAdoptChild = true;
} else {
ec = WRONG_DOCUMENT_ERR;
return;
}
}
if (newChild == this || isDescendantOf(newChild)) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
if (newChild->nodeType() != DOCUMENT_FRAGMENT_NODE) {
if (!childTypeAllowed(newChild->nodeType())) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
}
else {
for (Node *n = newChild->firstChild(); n; n = n->nextSibling()) {
if (!childTypeAllowed(n->nodeType())) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
}
}
if (shouldAdoptChild)
for (Node* node = newChild; node; node = node->traverseNextNode(newChild))
node->setDocument(document());
}
bool Node::isDescendantOf(const Node *other) const
{
if (!other)
return false;
for (const Node *n = parentNode(); n; n = n->parentNode()) {
if (n == other)
return true;
}
return false;
}
bool Node::contains(const Node* node) const
{
if (!node)
return false;
return this == node || node->isDescendantOf(this);
}
bool Node::childAllowed(Node* newChild)
{
return childTypeAllowed(newChild->nodeType());
}
void Node::attach()
{
ASSERT(!attached());
ASSERT(!renderer() || (renderer()->style() && renderer()->parent()));
if (renderer()) {
for (Node* next = nextSibling(); next; next = next->nextSibling()) {
if (next->renderer())
break;
if (!next->attached())
break; if (next->isTextNode())
next->createRendererIfNeeded();
}
}
setAttached();
}
void Node::willRemove()
{
}
void Node::detach()
{
setFlag(InDetachFlag);
if (renderer())
renderer()->destroy();
setRenderer(0);
Document* doc = document();
if (hovered())
doc->hoveredNodeDetached(this);
if (inActiveChain())
doc->activeChainNodeDetached(this);
clearFlag(IsActiveFlag);
clearFlag(IsHoveredFlag);
clearFlag(InActiveChainFlag);
clearFlag(IsAttachedFlag);
clearFlag(InDetachFlag);
}
Node *Node::previousEditable() const
{
Node *node = previousLeafNode();
while (node) {
if (node->isContentEditable())
return node;
node = node->previousLeafNode();
}
return 0;
}
Node *Node::nextEditable() const
{
Node *node = nextLeafNode();
while (node) {
if (node->isContentEditable())
return node;
node = node->nextLeafNode();
}
return 0;
}
RenderObject * Node::previousRenderer()
{
for (Node *n = previousSibling(); n; n = n->previousSibling()) {
if (n->renderer())
return n->renderer();
}
return 0;
}
RenderObject * Node::nextRenderer()
{
if (parent() && !parent()->attached())
return 0;
for (Node *n = nextSibling(); n; n = n->nextSibling()) {
if (n->renderer())
return n->renderer();
}
return 0;
}
Node *Node::previousNodeConsideringAtomicNodes() const
{
if (previousSibling()) {
Node *n = previousSibling();
while (!isAtomicNode(n) && n->lastChild())
n = n->lastChild();
return n;
}
else if (parentNode()) {
return parentNode();
}
else {
return 0;
}
}
Node *Node::nextNodeConsideringAtomicNodes() const
{
if (!isAtomicNode(this) && firstChild())
return firstChild();
if (nextSibling())
return nextSibling();
const Node *n = this;
while (n && !n->nextSibling())
n = n->parentNode();
if (n)
return n->nextSibling();
return 0;
}
Node *Node::previousLeafNode() const
{
Node *node = previousNodeConsideringAtomicNodes();
while (node) {
if (isAtomicNode(node))
return node;
node = node->previousNodeConsideringAtomicNodes();
}
return 0;
}
Node *Node::nextLeafNode() const
{
Node *node = nextNodeConsideringAtomicNodes();
while (node) {
if (isAtomicNode(node))
return node;
node = node->nextNodeConsideringAtomicNodes();
}
return 0;
}
void Node::createRendererIfNeeded()
{
if (!document()->shouldCreateRenderers())
return;
ASSERT(!renderer());
Node* parent = parentNode();
ASSERT(parent);
RenderObject* parentRenderer = parent->renderer();
if (parentRenderer && parentRenderer->canHaveChildren()
#if ENABLE(SVG) || ENABLE(XHTMLMP)
&& parent->childShouldCreateRenderer(this)
#endif
) {
RefPtr<RenderStyle> style = styleForRenderer();
if (rendererIsNeeded(style.get())) {
if (RenderObject* r = createRenderer(document()->renderArena(), style.get())) {
if (!parentRenderer->isChildAllowed(r, style.get()))
r->destroy();
else {
setRenderer(r);
renderer()->setAnimatableStyle(style.release());
parentRenderer->addChild(renderer(), nextRenderer());
}
}
}
}
}
PassRefPtr<RenderStyle> Node::styleForRenderer()
{
if (isElementNode()) {
bool allowSharing = true;
#if ENABLE(XHTMLMP)
allowSharing = localName() != HTMLNames::noscriptTag.localName();
#endif
return document()->styleSelector()->styleForElement(static_cast<Element*>(this), 0, allowSharing);
}
return parentNode() && parentNode()->renderer() ? parentNode()->renderer()->style() : 0;
}
bool Node::rendererIsNeeded(RenderStyle *style)
{
return (document()->documentElement() == this) || (style->display() != NONE);
}
RenderObject* Node::createRenderer(RenderArena*, RenderStyle*)
{
ASSERT(false);
return 0;
}
RenderStyle* Node::nonRendererRenderStyle() const
{
return 0;
}
void Node::setRenderStyle(PassRefPtr<RenderStyle> s)
{
if (m_renderer)
m_renderer->setAnimatableStyle(s);
}
RenderStyle* Node::virtualComputedStyle(PseudoId pseudoElementSpecifier)
{
return parent() ? parent()->computedStyle(pseudoElementSpecifier) : 0;
}
int Node::maxCharacterOffset() const
{
ASSERT_NOT_REACHED();
return 0;
}
bool Node::canStartSelection() const
{
if (isContentEditable())
return true;
if (renderer()) {
RenderStyle* style = renderer()->style();
if (style->userDrag() == DRAG_ELEMENT && style->userSelect() == SELECT_NONE)
return false;
}
return parent() ? parent()->canStartSelection() : true;
}
Node* Node::shadowAncestorNode()
{
#if ENABLE(SVG)
if (isSVGElement())
return this;
#endif
Node* root = shadowTreeRootNode();
if (root)
return root->shadowParentNode();
return this;
}
Node* Node::shadowTreeRootNode()
{
Node* root = this;
while (root) {
if (root->isShadowNode())
return root;
root = root->parentNode();
}
return 0;
}
bool Node::isInShadowTree()
{
for (Node* n = this; n; n = n->parentNode())
if (n->isShadowNode())
return true;
return false;
}
bool Node::isBlockFlow() const
{
return renderer() && renderer()->isBlockFlow();
}
bool Node::isBlockFlowOrBlockTable() const
{
return renderer() && (renderer()->isBlockFlow() || (renderer()->isTable() && !renderer()->isInline()));
}
bool Node::isEditableBlock() const
{
return isContentEditable() && isBlockFlow();
}
Element *Node::enclosingBlockFlowElement() const
{
Node *n = const_cast<Node *>(this);
if (isBlockFlow())
return static_cast<Element *>(n);
while (1) {
n = n->parentNode();
if (!n)
break;
if (n->isBlockFlow() || n->hasTagName(bodyTag))
return static_cast<Element *>(n);
}
return 0;
}
Element *Node::enclosingInlineElement() const
{
Node *n = const_cast<Node *>(this);
Node *p;
while (1) {
p = n->parentNode();
if (!p || p->isBlockFlow() || p->hasTagName(bodyTag))
return static_cast<Element *>(n);
for (Node *sibling = n->previousSibling(); sibling; sibling = sibling->previousSibling()) {
if (sibling->isBlockFlow())
return static_cast<Element *>(n);
}
n = p;
}
ASSERT_NOT_REACHED();
return 0;
}
Element* Node::rootEditableElement() const
{
Element* result = 0;
for (Node* n = const_cast<Node*>(this); n && n->isContentEditable(); n = n->parentNode()) {
if (n->isElementNode())
result = static_cast<Element*>(n);
if (n->hasTagName(bodyTag))
break;
}
return result;
}
bool Node::inSameContainingBlockFlowElement(Node *n)
{
return n ? enclosingBlockFlowElement() == n->enclosingBlockFlowElement() : false;
}
PassRefPtr<NodeList> Node::getElementsByTagName(const String& name)
{
return getElementsByTagNameNS(starAtom, name);
}
PassRefPtr<NodeList> Node::getElementsByTagNameNS(const AtomicString& namespaceURI, const String& localName)
{
if (localName.isNull())
return 0;
NodeRareData* data = ensureRareData();
if (!data->nodeLists()) {
data->setNodeLists(NodeListsNodeData::create());
document()->addNodeListCache();
}
String name = localName;
if (document()->isHTMLDocument())
name = localName.lower();
AtomicString localNameAtom = name;
pair<NodeListsNodeData::TagNodeListCache::iterator, bool> result = data->nodeLists()->m_tagNodeListCache.add(QualifiedName(nullAtom, localNameAtom, namespaceURI).impl(), 0);
if (!result.second)
return PassRefPtr<TagNodeList>(result.first->second);
RefPtr<TagNodeList> list = TagNodeList::create(this, namespaceURI.isEmpty() ? nullAtom : namespaceURI, localNameAtom);
result.first->second = list.get();
return list.release();
}
PassRefPtr<NodeList> Node::getElementsByName(const String& elementName)
{
NodeRareData* data = ensureRareData();
if (!data->nodeLists()) {
data->setNodeLists(NodeListsNodeData::create());
document()->addNodeListCache();
}
pair<NodeListsNodeData::NameNodeListCache::iterator, bool> result = data->nodeLists()->m_nameNodeListCache.add(elementName, 0);
if (!result.second)
return PassRefPtr<NodeList>(result.first->second);
RefPtr<NameNodeList> list = NameNodeList::create(this, elementName);
result.first->second = list.get();
return list.release();
}
PassRefPtr<NodeList> Node::getElementsByClassName(const String& classNames)
{
NodeRareData* data = ensureRareData();
if (!data->nodeLists()) {
data->setNodeLists(NodeListsNodeData::create());
document()->addNodeListCache();
}
pair<NodeListsNodeData::ClassNodeListCache::iterator, bool> result = data->nodeLists()->m_classNodeListCache.add(classNames, 0);
if (!result.second)
return PassRefPtr<NodeList>(result.first->second);
RefPtr<ClassNodeList> list = ClassNodeList::create(this, classNames);
result.first->second = list.get();
return list.release();
}
PassRefPtr<Element> Node::querySelector(const String& selectors, ExceptionCode& ec)
{
if (selectors.isEmpty()) {
ec = SYNTAX_ERR;
return 0;
}
bool strictParsing = !document()->inCompatMode();
CSSParser p(strictParsing);
CSSSelectorList querySelectorList;
p.parseSelector(selectors, document(), querySelectorList);
if (!querySelectorList.first()) {
ec = SYNTAX_ERR;
return 0;
}
if (querySelectorList.selectorsNeedNamespaceResolution()) {
ec = NAMESPACE_ERR;
return 0;
}
CSSStyleSelector::SelectorChecker selectorChecker(document(), strictParsing);
if (strictParsing && inDocument() && querySelectorList.hasOneSelector() && querySelectorList.first()->m_match == CSSSelector::Id) {
Element* element = document()->getElementById(querySelectorList.first()->m_value);
if (element && (isDocumentNode() || element->isDescendantOf(this)) && selectorChecker.checkSelector(querySelectorList.first(), element))
return element;
return 0;
}
for (Node* n = firstChild(); n; n = n->traverseNextNode(this)) {
if (n->isElementNode()) {
Element* element = static_cast<Element*>(n);
for (CSSSelector* selector = querySelectorList.first(); selector; selector = CSSSelectorList::next(selector)) {
if (selectorChecker.checkSelector(selector, element))
return element;
}
}
}
return 0;
}
PassRefPtr<NodeList> Node::querySelectorAll(const String& selectors, ExceptionCode& ec)
{
if (selectors.isEmpty()) {
ec = SYNTAX_ERR;
return 0;
}
bool strictParsing = !document()->inCompatMode();
CSSParser p(strictParsing);
CSSSelectorList querySelectorList;
p.parseSelector(selectors, document(), querySelectorList);
if (!querySelectorList.first()) {
ec = SYNTAX_ERR;
return 0;
}
if (querySelectorList.selectorsNeedNamespaceResolution()) {
ec = NAMESPACE_ERR;
return 0;
}
return createSelectorNodeList(this, querySelectorList);
}
Document *Node::ownerDocument() const
{
Document *doc = document();
return doc == this ? 0 : doc;
}
KURL Node::baseURI() const
{
return parentNode() ? parentNode()->baseURI() : KURL();
}
bool Node::isEqualNode(Node *other) const
{
if (!other)
return false;
if (nodeType() != other->nodeType())
return false;
if (nodeName() != other->nodeName())
return false;
if (localName() != other->localName())
return false;
if (namespaceURI() != other->namespaceURI())
return false;
if (prefix() != other->prefix())
return false;
if (nodeValue() != other->nodeValue())
return false;
NamedNodeMap *attrs = attributes();
NamedNodeMap *otherAttrs = other->attributes();
if (!attrs && otherAttrs)
return false;
if (attrs && !attrs->mapsEquivalent(otherAttrs))
return false;
Node *child = firstChild();
Node *otherChild = other->firstChild();
while (child) {
if (!child->isEqualNode(otherChild))
return false;
child = child->nextSibling();
otherChild = otherChild->nextSibling();
}
if (otherChild)
return false;
return true;
}
bool Node::isDefaultNamespace(const AtomicString& namespaceURIMaybeEmpty) const
{
const AtomicString& namespaceURI = namespaceURIMaybeEmpty.isEmpty() ? nullAtom : namespaceURIMaybeEmpty;
switch (nodeType()) {
case ELEMENT_NODE: {
const Element* elem = static_cast<const Element*>(this);
if (elem->prefix().isNull())
return elem->namespaceURI() == namespaceURI;
if (elem->hasAttributes()) {
NamedNodeMap* attrs = elem->attributes();
for (unsigned i = 0; i < attrs->length(); i++) {
Attribute* attr = attrs->attributeItem(i);
if (attr->localName() == xmlnsAtom)
return attr->value() == namespaceURI;
}
}
if (Element* ancestor = ancestorElement())
return ancestor->isDefaultNamespace(namespaceURI);
return false;
}
case DOCUMENT_NODE:
if (Element* de = static_cast<const Document*>(this)->documentElement())
return de->isDefaultNamespace(namespaceURI);
return false;
case ENTITY_NODE:
case NOTATION_NODE:
case DOCUMENT_TYPE_NODE:
case DOCUMENT_FRAGMENT_NODE:
return false;
case ATTRIBUTE_NODE: {
const Attr* attr = static_cast<const Attr*>(this);
if (attr->ownerElement())
return attr->ownerElement()->isDefaultNamespace(namespaceURI);
return false;
}
default:
if (Element* ancestor = ancestorElement())
return ancestor->isDefaultNamespace(namespaceURI);
return false;
}
}
String Node::lookupPrefix(const AtomicString &namespaceURI) const
{
if (namespaceURI.isEmpty())
return String();
switch (nodeType()) {
case ELEMENT_NODE:
return lookupNamespacePrefix(namespaceURI, static_cast<const Element *>(this));
case DOCUMENT_NODE:
if (Element* de = static_cast<const Document*>(this)->documentElement())
return de->lookupPrefix(namespaceURI);
return String();
case ENTITY_NODE:
case NOTATION_NODE:
case DOCUMENT_FRAGMENT_NODE:
case DOCUMENT_TYPE_NODE:
return String();
case ATTRIBUTE_NODE: {
const Attr *attr = static_cast<const Attr *>(this);
if (attr->ownerElement())
return attr->ownerElement()->lookupPrefix(namespaceURI);
return String();
}
default:
if (Element* ancestor = ancestorElement())
return ancestor->lookupPrefix(namespaceURI);
return String();
}
}
String Node::lookupNamespaceURI(const String &prefix) const
{
if (!prefix.isNull() && prefix.isEmpty())
return String();
switch (nodeType()) {
case ELEMENT_NODE: {
const Element *elem = static_cast<const Element *>(this);
if (!elem->namespaceURI().isNull() && elem->prefix() == prefix)
return elem->namespaceURI();
if (elem->hasAttributes()) {
NamedNodeMap *attrs = elem->attributes();
for (unsigned i = 0; i < attrs->length(); i++) {
Attribute *attr = attrs->attributeItem(i);
if (attr->prefix() == xmlnsAtom && attr->localName() == prefix) {
if (!attr->value().isEmpty())
return attr->value();
return String();
} else if (attr->localName() == xmlnsAtom && prefix.isNull()) {
if (!attr->value().isEmpty())
return attr->value();
return String();
}
}
}
if (Element* ancestor = ancestorElement())
return ancestor->lookupNamespaceURI(prefix);
return String();
}
case DOCUMENT_NODE:
if (Element* de = static_cast<const Document*>(this)->documentElement())
return de->lookupNamespaceURI(prefix);
return String();
case ENTITY_NODE:
case NOTATION_NODE:
case DOCUMENT_TYPE_NODE:
case DOCUMENT_FRAGMENT_NODE:
return String();
case ATTRIBUTE_NODE: {
const Attr *attr = static_cast<const Attr *>(this);
if (attr->ownerElement())
return attr->ownerElement()->lookupNamespaceURI(prefix);
else
return String();
}
default:
if (Element* ancestor = ancestorElement())
return ancestor->lookupNamespaceURI(prefix);
return String();
}
}
String Node::lookupNamespacePrefix(const AtomicString &_namespaceURI, const Element *originalElement) const
{
if (_namespaceURI.isNull())
return String();
if (originalElement->lookupNamespaceURI(prefix()) == _namespaceURI)
return prefix();
if (hasAttributes()) {
NamedNodeMap *attrs = attributes();
for (unsigned i = 0; i < attrs->length(); i++) {
Attribute *attr = attrs->attributeItem(i);
if (attr->prefix() == xmlnsAtom &&
attr->value() == _namespaceURI &&
originalElement->lookupNamespaceURI(attr->localName()) == _namespaceURI)
return attr->localName();
}
}
if (Element* ancestor = ancestorElement())
return ancestor->lookupNamespacePrefix(_namespaceURI, originalElement);
return String();
}
void Node::appendTextContent(bool convertBRsToNewlines, StringBuilder& content) const
{
switch (nodeType()) {
case TEXT_NODE:
case CDATA_SECTION_NODE:
case COMMENT_NODE:
content.append(static_cast<const CharacterData*>(this)->data());
break;
case PROCESSING_INSTRUCTION_NODE:
content.append(static_cast<const ProcessingInstruction*>(this)->data());
break;
case ELEMENT_NODE:
if (hasTagName(brTag) && convertBRsToNewlines) {
content.append('\n');
break;
}
case ATTRIBUTE_NODE:
case ENTITY_NODE:
case ENTITY_REFERENCE_NODE:
case DOCUMENT_FRAGMENT_NODE:
content.setNonNull();
for (Node *child = firstChild(); child; child = child->nextSibling()) {
if (child->nodeType() == COMMENT_NODE || child->nodeType() == PROCESSING_INSTRUCTION_NODE)
continue;
child->appendTextContent(convertBRsToNewlines, content);
}
break;
case DOCUMENT_NODE:
case DOCUMENT_TYPE_NODE:
case NOTATION_NODE:
case XPATH_NAMESPACE_NODE:
break;
}
}
String Node::textContent(bool convertBRsToNewlines) const
{
StringBuilder content;
appendTextContent(convertBRsToNewlines, content);
return content.toString();
}
void Node::setTextContent(const String &text, ExceptionCode& ec)
{
switch (nodeType()) {
case TEXT_NODE:
case CDATA_SECTION_NODE:
case COMMENT_NODE:
case PROCESSING_INSTRUCTION_NODE:
setNodeValue(text, ec);
break;
case ELEMENT_NODE:
case ATTRIBUTE_NODE:
case ENTITY_NODE:
case ENTITY_REFERENCE_NODE:
case DOCUMENT_FRAGMENT_NODE: {
ContainerNode *container = static_cast<ContainerNode *>(this);
container->removeChildren();
if (!text.isEmpty())
appendChild(document()->createTextNode(text), ec);
break;
}
case DOCUMENT_NODE:
case DOCUMENT_TYPE_NODE:
case NOTATION_NODE:
default:
break;
}
}
Element* Node::ancestorElement() const
{
for (Node* n = parentNode(); n; n = n->parentNode()) {
if (n->isElementNode())
return static_cast<Element*>(n);
}
return 0;
}
bool Node::offsetInCharacters() const
{
return false;
}
unsigned short Node::compareDocumentPosition(Node* otherNode)
{
if (!otherNode)
return DOCUMENT_POSITION_DISCONNECTED;
if (otherNode == this)
return DOCUMENT_POSITION_EQUIVALENT;
Attr* attr1 = nodeType() == ATTRIBUTE_NODE ? static_cast<Attr*>(this) : 0;
Attr* attr2 = otherNode->nodeType() == ATTRIBUTE_NODE ? static_cast<Attr*>(otherNode) : 0;
Node* start1 = attr1 ? attr1->ownerElement() : this;
Node* start2 = attr2 ? attr2->ownerElement() : otherNode;
if (!start1 || !start2)
return DOCUMENT_POSITION_DISCONNECTED | DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC;
Vector<Node*, 16> chain1;
Vector<Node*, 16> chain2;
if (attr1)
chain1.append(attr1);
if (attr2)
chain2.append(attr2);
if (attr1 && attr2 && start1 == start2 && start1) {
NamedNodeMap* map = attr1->ownerElement()->attributes(true);
unsigned length = map->length();
for (unsigned i = 0; i < length; ++i) {
Attribute* attr = map->attributeItem(i);
if (attr1->attr() == attr)
return DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC | DOCUMENT_POSITION_FOLLOWING;
if (attr2->attr() == attr)
return DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC | DOCUMENT_POSITION_PRECEDING;
}
ASSERT_NOT_REACHED();
return DOCUMENT_POSITION_DISCONNECTED;
}
if (start1->inDocument() != start2->inDocument() ||
start1->document() != start2->document())
return DOCUMENT_POSITION_DISCONNECTED | DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC;
Node* current;
for (current = start1; current; current = current->parentNode())
chain1.append(current);
for (current = start2; current; current = current->parentNode())
chain2.append(current);
unsigned index1 = chain1.size();
unsigned index2 = chain2.size();
for (unsigned i = min(index1, index2); i; --i) {
Node* child1 = chain1[--index1];
Node* child2 = chain2[--index2];
if (child1 != child2) {
if (child1->nodeType() == ATTRIBUTE_NODE)
return DOCUMENT_POSITION_FOLLOWING;
if (child2->nodeType() == ATTRIBUTE_NODE)
return DOCUMENT_POSITION_PRECEDING;
if (!child2->nextSibling())
return DOCUMENT_POSITION_FOLLOWING;
if (!child1->nextSibling())
return DOCUMENT_POSITION_PRECEDING;
for (Node* child = child2->previousSibling(); child; child = child->previousSibling()) {
if (child == child1)
return DOCUMENT_POSITION_FOLLOWING;
}
return DOCUMENT_POSITION_PRECEDING;
}
}
return index1 < index2 ?
DOCUMENT_POSITION_FOLLOWING | DOCUMENT_POSITION_CONTAINED_BY :
DOCUMENT_POSITION_PRECEDING | DOCUMENT_POSITION_CONTAINS;
}
FloatPoint Node::convertToPage(const FloatPoint& p) const
{
if (renderer())
return renderer()->localToAbsolute(p, false, true);
Element *parent = ancestorElement();
if (parent)
return parent->convertToPage(p);
return p;
}
FloatPoint Node::convertFromPage(const FloatPoint& p) const
{
if (renderer())
return renderer()->absoluteToLocal(p, false, true);
Element *parent = ancestorElement();
if (parent)
return parent->convertFromPage(p);
return p;
}
#ifndef NDEBUG
static void appendAttributeDesc(const Node* node, String& string, const QualifiedName& name, const char* attrDesc)
{
if (node->isElementNode()) {
String attr = static_cast<const Element*>(node)->getAttribute(name);
if (!attr.isEmpty()) {
string += attrDesc;
string += attr;
}
}
}
void Node::showNode(const char* prefix) const
{
if (!prefix)
prefix = "";
if (isTextNode()) {
String value = nodeValue();
value.replace('\\', "\\\\");
value.replace('\n', "\\n");
fprintf(stderr, "%s%s\t%p \"%s\"\n", prefix, nodeName().utf8().data(), this, value.utf8().data());
} else {
String attrs = "";
appendAttributeDesc(this, attrs, classAttr, " CLASS=");
appendAttributeDesc(this, attrs, styleAttr, " STYLE=");
fprintf(stderr, "%s%s\t%p%s\n", prefix, nodeName().utf8().data(), this, attrs.utf8().data());
}
}
void Node::showTreeForThis() const
{
showTreeAndMark(this, "*");
}
void Node::showTreeAndMark(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2, const char * markedLabel2) const
{
const Node* rootNode;
const Node* node = this;
while (node->parentNode() && !node->hasTagName(bodyTag))
node = node->parentNode();
rootNode = node;
for (node = rootNode; node; node = node->traverseNextNode()) {
if (node == markedNode1)
fprintf(stderr, "%s", markedLabel1);
if (node == markedNode2)
fprintf(stderr, "%s", markedLabel2);
for (const Node* tmpNode = node; tmpNode && tmpNode != rootNode; tmpNode = tmpNode->parentNode())
fprintf(stderr, "\t");
node->showNode();
}
}
void Node::formatForDebugger(char* buffer, unsigned length) const
{
String result;
String s;
s = nodeName();
if (s.length() == 0)
result += "<none>";
else
result += s;
strncpy(buffer, result.utf8().data(), length - 1);
}
#endif
void NodeListsNodeData::invalidateCaches()
{
m_childNodeListCaches->reset();
TagNodeListCache::const_iterator tagCacheEnd = m_tagNodeListCache.end();
for (TagNodeListCache::const_iterator it = m_tagNodeListCache.begin(); it != tagCacheEnd; ++it)
it->second->invalidateCache();
invalidateCachesThatDependOnAttributes();
}
void NodeListsNodeData::invalidateCachesThatDependOnAttributes()
{
ClassNodeListCache::iterator classCacheEnd = m_classNodeListCache.end();
for (ClassNodeListCache::iterator it = m_classNodeListCache.begin(); it != classCacheEnd; ++it)
it->second->invalidateCache();
NameNodeListCache::iterator nameCacheEnd = m_nameNodeListCache.end();
for (NameNodeListCache::iterator it = m_nameNodeListCache.begin(); it != nameCacheEnd; ++it)
it->second->invalidateCache();
}
bool NodeListsNodeData::isEmpty() const
{
if (!m_listsWithCaches.isEmpty())
return false;
if (m_childNodeListCaches->refCount())
return false;
TagNodeListCache::const_iterator tagCacheEnd = m_tagNodeListCache.end();
for (TagNodeListCache::const_iterator it = m_tagNodeListCache.begin(); it != tagCacheEnd; ++it) {
if (it->second->refCount())
return false;
}
ClassNodeListCache::const_iterator classCacheEnd = m_classNodeListCache.end();
for (ClassNodeListCache::const_iterator it = m_classNodeListCache.begin(); it != classCacheEnd; ++it) {
if (it->second->refCount())
return false;
}
NameNodeListCache::const_iterator nameCacheEnd = m_nameNodeListCache.end();
for (NameNodeListCache::const_iterator it = m_nameNodeListCache.begin(); it != nameCacheEnd; ++it) {
if (it->second->refCount())
return false;
}
return true;
}
void Node::getSubresourceURLs(ListHashSet<KURL>& urls) const
{
addSubresourceAttributeURLs(urls);
}
ContainerNode* Node::eventParentNode()
{
Node* parent = parentNode();
ASSERT(!parent || parent->isContainerNode());
return static_cast<ContainerNode*>(parent);
}
Node* Node::enclosingLinkEventParentOrSelf()
{
for (Node* node = this; node; node = node->eventParentNode()) {
if (node->isLink() && !node->hasTagName(imgTag))
return node;
}
return 0;
}
ScriptExecutionContext* Node::scriptExecutionContext() const
{
return document();
}
void Node::insertedIntoDocument()
{
setInDocument();
}
void Node::removedFromDocument()
{
clearInDocument();
}
void Node::willMoveToNewOwnerDocument()
{
ASSERT(!willMoveToNewOwnerDocumentWasCalled);
setWillMoveToNewOwnerDocumentWasCalled(true);
}
void Node::didMoveToNewOwnerDocument()
{
ASSERT(!didMoveToNewOwnerDocumentWasCalled);
setDidMoveToNewOwnerDocumentWasCalled(true);
}
#if ENABLE(SVG)
static inline HashSet<SVGElementInstance*> instancesForSVGElement(Node* node)
{
HashSet<SVGElementInstance*> instances;
ASSERT(node);
if (!node->isSVGElement() || node->shadowTreeRootNode())
return HashSet<SVGElementInstance*>();
SVGElement* element = static_cast<SVGElement*>(node);
if (!element->isStyled())
return HashSet<SVGElementInstance*>();
SVGStyledElement* styledElement = static_cast<SVGStyledElement*>(element);
ASSERT(!styledElement->instanceUpdatesBlocked());
return styledElement->instancesForElement();
}
#endif
static inline bool tryAddEventListener(Node* targetNode, const AtomicString& eventType, PassRefPtr<EventListener> listener, bool useCapture)
{
if (!targetNode->EventTarget::addEventListener(eventType, listener, useCapture))
return false;
if (Document* document = targetNode->document())
document->addListenerTypeIfNeeded(eventType);
return true;
}
bool Node::addEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener, bool useCapture)
{
#if !ENABLE(SVG)
return tryAddEventListener(this, eventType, listener, useCapture);
#else
if (!isSVGElement())
return tryAddEventListener(this, eventType, listener, useCapture);
HashSet<SVGElementInstance*> instances = instancesForSVGElement(this);
if (instances.isEmpty())
return tryAddEventListener(this, eventType, listener, useCapture);
RefPtr<EventListener> listenerForRegularTree = listener;
RefPtr<EventListener> listenerForShadowTree = listenerForRegularTree;
if (!tryAddEventListener(this, eventType, listenerForRegularTree.release(), useCapture))
return false;
const HashSet<SVGElementInstance*>::const_iterator end = instances.end();
for (HashSet<SVGElementInstance*>::const_iterator it = instances.begin(); it != end; ++it) {
ASSERT((*it)->shadowTreeElement());
ASSERT((*it)->correspondingElement() == this);
RefPtr<EventListener> listenerForCurrentShadowTreeElement = listenerForShadowTree;
bool result = tryAddEventListener((*it)->shadowTreeElement(), eventType, listenerForCurrentShadowTreeElement.release(), useCapture);
ASSERT_UNUSED(result, result);
}
return true;
#endif
}
static inline bool tryRemoveEventListener(Node* targetNode, const AtomicString& eventType, EventListener* listener, bool useCapture)
{
if (!targetNode->EventTarget::removeEventListener(eventType, listener, useCapture))
return false;
return true;
}
bool Node::removeEventListener(const AtomicString& eventType, EventListener* listener, bool useCapture)
{
#if !ENABLE(SVG)
return tryRemoveEventListener(this, eventType, listener, useCapture);
#else
if (!isSVGElement())
return tryRemoveEventListener(this, eventType, listener, useCapture);
HashSet<SVGElementInstance*> instances = instancesForSVGElement(this);
if (instances.isEmpty())
return tryRemoveEventListener(this, eventType, listener, useCapture);
RefPtr<EventListener> protector(listener);
if (!tryRemoveEventListener(this, eventType, listener, useCapture))
return false;
const HashSet<SVGElementInstance*>::const_iterator end = instances.end();
for (HashSet<SVGElementInstance*>::const_iterator it = instances.begin(); it != end; ++it) {
ASSERT((*it)->correspondingElement() == this);
SVGElement* shadowTreeElement = (*it)->shadowTreeElement();
ASSERT(shadowTreeElement);
if (tryRemoveEventListener(shadowTreeElement, eventType, listener, useCapture))
continue;
ASSERT(listener->wasCreatedFromMarkup());
EventTargetData* data = shadowTreeElement->eventTargetData();
ASSERT(data);
EventListenerMap::iterator result = data->eventListenerMap.find(eventType);
ASSERT(result != data->eventListenerMap.end());
EventListenerVector* entry = result->second;
ASSERT(entry);
unsigned int index = 0;
bool foundListener = false;
EventListenerVector::iterator end = entry->end();
for (EventListenerVector::iterator it = entry->begin(); it != end; ++it) {
if (!(*it).listener->wasCreatedFromMarkup()) {
++index;
continue;
}
foundListener = true;
entry->remove(index);
break;
}
ASSERT(foundListener);
if (entry->isEmpty()) {
delete entry;
data->eventListenerMap.remove(result);
}
}
return true;
#endif
}
EventTargetData* Node::eventTargetData()
{
return hasRareData() ? rareData()->eventTargetData() : 0;
}
EventTargetData* Node::ensureEventTargetData()
{
return ensureRareData()->ensureEventTargetData();
}
#if USE(JSC)
template <class NodeListMap>
void markNodeLists(const NodeListMap& map, JSC::MarkStack& markStack, JSC::JSGlobalData& globalData)
{
for (typename NodeListMap::const_iterator it = map.begin(); it != map.end(); ++it)
markDOMObjectWrapper(markStack, globalData, it->second);
}
void Node::markCachedNodeListsSlow(JSC::MarkStack& markStack, JSC::JSGlobalData& globalData)
{
NodeListsNodeData* nodeLists = rareData()->nodeLists();
if (!nodeLists)
return;
markNodeLists(nodeLists->m_classNodeListCache, markStack, globalData);
markNodeLists(nodeLists->m_nameNodeListCache, markStack, globalData);
markNodeLists(nodeLists->m_tagNodeListCache, markStack, globalData);
}
#endif
void Node::handleLocalEvents(Event* event)
{
if (!hasRareData() || !rareData()->eventTargetData())
return;
if (disabled() && event->isMouseEvent())
return;
fireEventListeners(event);
}
#if ENABLE(SVG)
static inline SVGElementInstance* eventTargetAsSVGElementInstance(Node* referenceNode)
{
ASSERT(referenceNode);
if (!referenceNode->isSVGElement())
return 0;
for (Node* n = referenceNode; n; n = n->parentNode()) {
if (!n->isShadowNode() || !n->isSVGElement())
continue;
Node* shadowTreeParentElement = n->shadowParentNode();
ASSERT(shadowTreeParentElement->hasTagName(SVGNames::useTag));
if (SVGElementInstance* instance = static_cast<SVGUseElement*>(shadowTreeParentElement)->instanceForShadowTreeElement(referenceNode))
return instance;
}
return 0;
}
#endif
static inline EventTarget* eventTargetRespectingSVGTargetRules(Node* referenceNode)
{
ASSERT(referenceNode);
#if ENABLE(SVG)
if (SVGElementInstance* instance = eventTargetAsSVGElementInstance(referenceNode)) {
ASSERT(instance->shadowTreeElement() == referenceNode);
return instance;
}
#endif
return referenceNode;
}
void Node::eventAncestors(Vector<RefPtr<ContainerNode> > &ancestors)
{
if (inDocument()) {
for (ContainerNode* ancestor = eventParentNode(); ancestor; ancestor = ancestor->eventParentNode()) {
#if ENABLE(SVG)
if (ancestor->isSVGElement() && ancestor->isShadowNode())
continue;
#endif
ancestors.append(ancestor);
}
}
}
bool Node::dispatchEvent(PassRefPtr<Event> prpEvent)
{
RefPtr<EventTarget> protect = this;
RefPtr<Event> event = prpEvent;
event->setTarget(eventTargetRespectingSVGTargetRules(this));
RefPtr<FrameView> view = document()->view();
return dispatchGenericEvent(event.release());
}
static bool eventHasListeners(const AtomicString& eventType, DOMWindow* window, Node* node, Vector<RefPtr<ContainerNode> >& ancestors)
{
if (window && window->hasEventListeners(eventType))
return true;
if (node->hasEventListeners(eventType))
return true;
for (size_t i = 0; i < ancestors.size(); i++) {
ContainerNode* ancestor = ancestors[i].get();
if (ancestor->hasEventListeners(eventType))
return true;
}
return false;
}
bool Node::dispatchGenericEvent(PassRefPtr<Event> prpEvent)
{
RefPtr<Event> event(prpEvent);
ASSERT(!eventDispatchForbidden());
ASSERT(event->target());
ASSERT(!event->type().isNull());
RefPtr<Node> thisNode(this);
Vector<RefPtr<ContainerNode> > ancestors;
eventAncestors(ancestors);
DOMWindow* targetForWindowEvents = 0;
if (event->type() != eventNames().loadEvent) {
Node* topLevelContainer = ancestors.isEmpty() ? this : ancestors.last().get();
if (topLevelContainer->isDocumentNode())
targetForWindowEvents = static_cast<Document*>(topLevelContainer)->domWindow();
}
#if ENABLE(INSPECTOR)
Page* inspectedPage = InspectorTimelineAgent::instanceCount() ? document()->page() : 0;
if (inspectedPage) {
if (InspectorTimelineAgent* timelineAgent = eventHasListeners(event->type(), targetForWindowEvents, this, ancestors) ? inspectedPage->inspectorTimelineAgent() : 0)
timelineAgent->willDispatchEvent(*event);
else
inspectedPage = 0;
}
#endif
void* data = preDispatchEventHandler(event.get());
if (event->propagationStopped())
goto doneDispatching;
event->setEventPhase(Event::CAPTURING_PHASE);
if (targetForWindowEvents) {
event->setCurrentTarget(targetForWindowEvents);
targetForWindowEvents->fireEventListeners(event.get());
if (event->propagationStopped())
goto doneDispatching;
}
for (size_t i = ancestors.size(); i; --i) {
ContainerNode* ancestor = ancestors[i - 1].get();
event->setCurrentTarget(eventTargetRespectingSVGTargetRules(ancestor));
ancestor->handleLocalEvents(event.get());
if (event->propagationStopped())
goto doneDispatching;
}
event->setEventPhase(Event::AT_TARGET);
event->setCurrentTarget(eventTargetRespectingSVGTargetRules(this));
handleLocalEvents(event.get());
if (event->propagationStopped())
goto doneDispatching;
if (event->bubbles() && !event->cancelBubble()) {
event->setEventPhase(Event::BUBBLING_PHASE);
size_t size = ancestors.size();
for (size_t i = 0; i < size; ++i) {
ContainerNode* ancestor = ancestors[i].get();
event->setCurrentTarget(eventTargetRespectingSVGTargetRules(ancestor));
ancestor->handleLocalEvents(event.get());
if (event->propagationStopped() || event->cancelBubble())
goto doneDispatching;
}
if (targetForWindowEvents) {
event->setCurrentTarget(targetForWindowEvents);
targetForWindowEvents->fireEventListeners(event.get());
if (event->propagationStopped() || event->cancelBubble())
goto doneDispatching;
}
}
doneDispatching:
event->setCurrentTarget(0);
event->setEventPhase(0);
postDispatchEventHandler(event.get(), data);
if (!event->defaultPrevented() && !event->defaultHandled()) {
defaultEventHandler(event.get());
ASSERT(!event->defaultPrevented());
if (event->defaultHandled())
goto doneWithDefault;
if (event->bubbles()) {
size_t size = ancestors.size();
for (size_t i = 0; i < size; ++i) {
ContainerNode* ancestor = ancestors[i].get();
ancestor->defaultEventHandler(event.get());
ASSERT(!event->defaultPrevented());
if (event->defaultHandled())
goto doneWithDefault;
}
}
}
doneWithDefault:
#if ENABLE(INSPECTOR)
if (inspectedPage)
if (InspectorTimelineAgent* timelineAgent = inspectedPage->inspectorTimelineAgent())
timelineAgent->didDispatchEvent();
#endif
return !event->defaultPrevented();
}
void Node::dispatchSubtreeModifiedEvent()
{
ASSERT(!eventDispatchForbidden());
document()->incDOMTreeVersion();
notifyNodeListsAttributeChanged();
if (!document()->hasListenerType(Document::DOMSUBTREEMODIFIED_LISTENER))
return;
dispatchEvent(MutationEvent::create(eventNames().DOMSubtreeModifiedEvent, true));
}
void Node::dispatchUIEvent(const AtomicString& eventType, int detail, PassRefPtr<Event> underlyingEvent)
{
ASSERT(!eventDispatchForbidden());
ASSERT(eventType == eventNames().focusinEvent || eventType == eventNames().focusoutEvent ||
eventType == eventNames().DOMFocusInEvent || eventType == eventNames().DOMFocusOutEvent || eventType == eventNames().DOMActivateEvent);
bool cancelable = eventType == eventNames().DOMActivateEvent;
RefPtr<UIEvent> event = UIEvent::create(eventType, true, cancelable, document()->defaultView(), detail);
event->setUnderlyingEvent(underlyingEvent);
dispatchEvent(event.release());
}
bool Node::dispatchKeyEvent(const PlatformKeyboardEvent& key)
{
RefPtr<KeyboardEvent> keyboardEvent = KeyboardEvent::create(key, document()->defaultView());
bool r = dispatchEvent(keyboardEvent);
if (keyboardEvent->defaultHandled())
r = false;
return r;
}
bool Node::dispatchMouseEvent(const PlatformMouseEvent& event, const AtomicString& eventType,
int detail, Node* relatedTarget)
{
ASSERT(!eventDispatchForbidden());
IntPoint contentsPos;
if (FrameView* view = document()->view())
contentsPos = view->windowToContents(event.pos());
short button = event.button();
ASSERT(event.eventType() == MouseEventMoved || button != NoButton);
return dispatchMouseEvent(eventType, button, detail,
contentsPos.x(), contentsPos.y(), event.globalX(), event.globalY(),
event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(),
false, relatedTarget, 0);
}
void Node::dispatchSimulatedMouseEvent(const AtomicString& eventType,
PassRefPtr<Event> underlyingEvent)
{
ASSERT(!eventDispatchForbidden());
bool ctrlKey = false;
bool altKey = false;
bool shiftKey = false;
bool metaKey = false;
if (UIEventWithKeyState* keyStateEvent = findEventWithKeyState(underlyingEvent.get())) {
ctrlKey = keyStateEvent->ctrlKey();
altKey = keyStateEvent->altKey();
shiftKey = keyStateEvent->shiftKey();
metaKey = keyStateEvent->metaKey();
}
dispatchMouseEvent(eventType, 0, 0, 0, 0, 0, 0,
ctrlKey, altKey, shiftKey, metaKey, true, 0, underlyingEvent);
}
void Node::dispatchSimulatedClick(PassRefPtr<Event> event, bool sendMouseEvents, bool showPressedLook)
{
if (!gNodesDispatchingSimulatedClicks)
gNodesDispatchingSimulatedClicks = new HashSet<Node*>;
else if (gNodesDispatchingSimulatedClicks->contains(this))
return;
gNodesDispatchingSimulatedClicks->add(this);
if (sendMouseEvents)
dispatchSimulatedMouseEvent(eventNames().mousedownEvent, event.get());
setActive(true, showPressedLook);
if (sendMouseEvents)
dispatchSimulatedMouseEvent(eventNames().mouseupEvent, event.get());
setActive(false);
dispatchSimulatedMouseEvent(eventNames().clickEvent, event);
gNodesDispatchingSimulatedClicks->remove(this);
}
bool Node::dispatchMouseEvent(const AtomicString& eventType, int button, int detail,
int pageX, int pageY, int screenX, int screenY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
bool isSimulated, Node* relatedTargetArg, PassRefPtr<Event> underlyingEvent)
{
ASSERT(!eventDispatchForbidden());
if (disabled()) return true;
if (eventType.isEmpty())
return false;
RefPtr<Node> protect(this);
bool cancelable = eventType != eventNames().mousemoveEvent;
bool swallowEvent = false;
RefPtr<Node> relatedTarget = relatedTargetArg;
int adjustedPageX = pageX;
int adjustedPageY = pageY;
if (Frame* frame = document()->frame()) {
float pageZoom = frame->pageZoomFactor();
if (pageZoom != 1.0f) {
adjustedPageX = lroundf(pageX / pageZoom);
adjustedPageY = lroundf(pageY / pageZoom);
}
}
RefPtr<MouseEvent> mouseEvent = MouseEvent::create(eventType,
true, cancelable, document()->defaultView(),
detail, screenX, screenY, adjustedPageX, adjustedPageY,
ctrlKey, altKey, shiftKey, metaKey, button,
relatedTarget, 0, isSimulated);
mouseEvent->setUnderlyingEvent(underlyingEvent.get());
mouseEvent->setAbsoluteLocation(IntPoint(pageX, pageY));
dispatchEvent(mouseEvent);
bool defaultHandled = mouseEvent->defaultHandled();
bool defaultPrevented = mouseEvent->defaultPrevented();
if (defaultHandled || defaultPrevented)
swallowEvent = true;
if (eventType == eventNames().clickEvent && detail == 2) {
RefPtr<Event> doubleClickEvent = MouseEvent::create(eventNames().dblclickEvent,
true, cancelable, document()->defaultView(),
detail, screenX, screenY, adjustedPageX, adjustedPageY,
ctrlKey, altKey, shiftKey, metaKey, button,
relatedTarget, 0, isSimulated);
doubleClickEvent->setUnderlyingEvent(underlyingEvent.get());
if (defaultHandled)
doubleClickEvent->setDefaultHandled();
dispatchEvent(doubleClickEvent);
if (doubleClickEvent->defaultHandled() || doubleClickEvent->defaultPrevented())
swallowEvent = true;
}
return swallowEvent;
}
void Node::dispatchWheelEvent(PlatformWheelEvent& e)
{
ASSERT(!eventDispatchForbidden());
if (e.deltaX() == 0 && e.deltaY() == 0)
return;
FrameView* view = document()->view();
if (!view)
return;
IntPoint pos = view->windowToContents(e.pos());
int adjustedPageX = pos.x();
int adjustedPageY = pos.y();
if (Frame* frame = document()->frame()) {
float pageZoom = frame->pageZoomFactor();
if (pageZoom != 1.0f) {
adjustedPageX = lroundf(pos.x() / pageZoom);
adjustedPageY = lroundf(pos.y() / pageZoom);
}
}
WheelEvent::Granularity granularity;
switch (e.granularity()) {
case ScrollByPageWheelEvent:
granularity = WheelEvent::Page;
break;
case ScrollByPixelWheelEvent:
default:
granularity = WheelEvent::Pixel;
break;
}
RefPtr<WheelEvent> we = WheelEvent::create(e.wheelTicksX(), e.wheelTicksY(), e.deltaX(), e.deltaY(), granularity,
document()->defaultView(), e.globalX(), e.globalY(), adjustedPageX, adjustedPageY,
e.ctrlKey(), e.altKey(), e.shiftKey(), e.metaKey());
we->setAbsoluteLocation(IntPoint(pos.x(), pos.y()));
if (!dispatchEvent(we) || we->defaultHandled())
e.accept();
we.release();
}
void Node::dispatchFocusEvent()
{
dispatchEvent(Event::create(eventNames().focusEvent, false, false));
}
void Node::dispatchBlurEvent()
{
dispatchEvent(Event::create(eventNames().blurEvent, false, false));
}
bool Node::disabled() const
{
return false;
}
void Node::defaultEventHandler(Event* event)
{
if (event->target() != this)
return;
const AtomicString& eventType = event->type();
if (eventType == eventNames().keydownEvent || eventType == eventNames().keypressEvent) {
if (event->isKeyboardEvent())
if (Frame* frame = document()->frame())
frame->eventHandler()->defaultKeyboardEventHandler(static_cast<KeyboardEvent*>(event));
} else if (eventType == eventNames().clickEvent) {
int detail = event->isUIEvent() ? static_cast<UIEvent*>(event)->detail() : 0;
dispatchUIEvent(eventNames().DOMActivateEvent, detail, event);
#if ENABLE(CONTEXT_MENUS)
} else if (eventType == eventNames().contextmenuEvent) {
if (Frame* frame = document()->frame())
if (Page* page = frame->page())
page->contextMenuController()->handleContextMenuEvent(event);
#endif
} else if (eventType == eventNames().textInputEvent) {
if (event->isTextEvent())
if (Frame* frame = document()->frame())
frame->eventHandler()->defaultTextInputEventHandler(static_cast<TextEvent*>(event));
#if ENABLE(PAN_SCROLLING)
} else if (eventType == eventNames().mousedownEvent) {
MouseEvent* mouseEvent = static_cast<MouseEvent*>(event);
if (mouseEvent->button() == MiddleButton) {
if (enclosingLinkEventParentOrSelf())
return;
RenderObject* renderer = this->renderer();
while (renderer && (!renderer->isBox() || !toRenderBox(renderer)->canBeScrolledAndHasScrollableArea()))
renderer = renderer->parent();
if (renderer) {
if (Frame* frame = document()->frame())
frame->eventHandler()->startPanScrolling(renderer);
}
}
#endif
} else if (eventType == eventNames().mousewheelEvent && event->isWheelEvent()) {
WheelEvent* wheelEvent = static_cast<WheelEvent*>(event);
Node* startNode = this;
while (startNode && !startNode->renderer())
startNode = startNode->parent();
if (startNode && startNode->renderer())
if (Frame* frame = document()->frame())
frame->eventHandler()->defaultWheelEventHandler(startNode, wheelEvent);
}
}
}
#ifndef NDEBUG
void showTree(const WebCore::Node* node)
{
if (node)
node->showTreeForThis();
}
#endif