static bool isAcceptableCSSStyleSheetParent(const Node& parentNode) {
// Only these nodes can be parents of StyleSheets, and they need to call
// clearOwnerNode() when moved out of document. Note that destructor of
// the nodes don't call clearOwnerNode() with Oilpan.
return parentNode.isDocumentNode() || isHTMLLinkElement(parentNode) ||
isHTMLStyleElement(parentNode) || isSVGStyleElement(parentNode) ||
parentNode.getNodeType() == Node::kProcessingInstructionNode;
}
static bool isAcceptableCSSStyleSheetParent(Node* parentNode)
{
// Only these nodes can be parents of StyleSheets, and they need to call
// clearOwnerNode() when moved out of document. Note that destructor of
// the nodes don't call clearOwnerNode() with Oilpan.
return !parentNode
|| parentNode->isDocumentNode()
|| isHTMLLinkElement(*parentNode)
|| isHTMLStyleElement(*parentNode)
|| isSVGStyleElement(*parentNode)
|| parentNode->getNodeType() == Node::PROCESSING_INSTRUCTION_NODE;
}
static bool isAcceptableCSSStyleSheetParent(Node* parentNode)
{
// Only these nodes can be parents of StyleSheets, and they need to call
// clearOwnerNode() when moved out of document.
// Destruction of the style sheet counts as being "moved out of the
// document", but only in the non-oilpan version of blink. I.e. don't call
// clearOwnerNode() in the owner's destructor in oilpan.
return !parentNode
|| parentNode->isDocumentNode()
|| isHTMLLinkElement(*parentNode)
|| isHTMLStyleElement(*parentNode)
|| isSVGStyleElement(*parentNode)
|| parentNode->nodeType() == Node::PROCESSING_INSTRUCTION_NODE;
}
TreeScope* ScopedStyleResolver::treeScopeFor(Document& document, const CSSStyleSheet* sheet)
{
ASSERT(sheet);
if (!sheet->ownerDocument())
return 0;
Node* ownerNode = sheet->ownerNode();
if (!isHTMLStyleElement(ownerNode) && !isSVGStyleElement(ownerNode))
return &document;
Element& styleElement = toElement(*ownerNode);
if (styleElement.isInShadowTree())
return styleElement.containingShadowRoot();
return &document;
}
static bool isStyleElement(const Node* node)
{
return node && (isHTMLStyleElement(node) || isSVGStyleElement(node));
}
