diff options
Diffstat (limited to 'WebCore/css/StyleSheet.cpp')
| -rw-r--r-- | WebCore/css/StyleSheet.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/WebCore/css/StyleSheet.cpp b/WebCore/css/StyleSheet.cpp index 4f20a20..854b63c 100644 --- a/WebCore/css/StyleSheet.cpp +++ b/WebCore/css/StyleSheet.cpp @@ -20,10 +20,29 @@ #include "config.h" #include "StyleSheet.h" +#include "HTMLNames.h" #include "MediaList.h" +#include "Node.h" +#include "SVGNames.h" namespace WebCore { +#if !ASSERT_DISABLED +static bool isAcceptableStyleSheetParent(Node* parentNode) +{ + // Only these nodes can be parents of StyleSheets, and they need to call clearOwnerNode() when moved out of document. + return !parentNode + || parentNode->isDocumentNode() + || parentNode->hasTagName(HTMLNames::linkTag) + || parentNode->hasTagName(HTMLNames::styleTag) + || parentNode->nodeType() == Node::PROCESSING_INSTRUCTION_NODE +#if ENABLE(SVG) + || parentNode->hasTagName(SVGNames::styleTag) +#endif + ; +} +#endif + StyleSheet::StyleSheet(StyleSheet* parentSheet, const String& originalURL, const KURL& finalURL) : StyleList(parentSheet) , m_parentNode(0) @@ -40,6 +59,7 @@ StyleSheet::StyleSheet(Node* parentNode, const String& originalURL, const KURL& , m_finalURL(finalURL) , m_disabled(false) { + ASSERT(isAcceptableStyleSheetParent(parentNode)); } StyleSheet::StyleSheet(StyleBase* owner, const String& originalURL, const KURL& finalURL) |