Index: third_party/WebKit/Source/core/dom/custom/CustomElementDescriptor.h |
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptor.h b/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptor.h |
index 520c559cab1c4fb3287d0bc927f81d4e22988e6b..ab51fc6c42f828a22b3674640c1b33d484e94f9a 100644 |
--- a/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptor.h |
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptor.h |
@@ -6,6 +6,7 @@ |
#define CustomElementDescriptor_h |
#include "core/CoreExport.h" |
+#include "core/dom/Element.h" |
#include "wtf/Allocator.h" |
#include "wtf/HashTableDeletedValueType.h" |
#include "wtf/text/AtomicString.h" |
@@ -13,18 +14,21 @@ |
namespace blink { |
// Describes what elements a custom element definition applies to. |
+// https://html.spec.whatwg.org/multipage/scripting.html#custom-elements-core-concepts |
// |
-// There are two kinds of definitions: The first has its own tag name; |
-// in this case the "name" (definition name) and local name (tag name) |
-// are the same. The second kind customizes a built-in element; in |
-// that case, the descriptor's local name will be a built-in element |
-// name, or an unknown element name that is *not* a valid custom |
-// element name. |
+// There are two kinds of definitions: |
// |
-// This type is used when the kind of custom element definition is |
-// known, and generally the difference is important. For example, a |
-// definition for "my-element", "my-element" must not be applied to an |
-// element <button is="my-element">. |
+// [Autonomous] These have their own tag name. In that case "name" |
+// (the definition name) and local name (the tag name) are identical. |
+// |
+// [Customized built-in] The name is still a valid custom element |
+// name; but the local name will be a built-in element name, or an |
+// unknown element name that is *not* a valid custom element name. |
+// |
+// CustomElementDescriptor used when the kind of custom element |
+// definition is known, and generally the difference is important. For |
+// example, a definition for "my-element", "my-element" must not be |
+// applied to an element <button is="my-element">. |
class CORE_EXPORT CustomElementDescriptor final { |
DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
public: |
@@ -58,6 +62,16 @@ public: |
const AtomicString& name() const { return m_name; } |
const AtomicString& localName() const { return m_localName; } |
+ bool matches(const Element& element) const |
+ { |
+ return localName() == element.localName() |
+ && (isAutonomous() |
+ || name() == element.getAttribute(HTMLNames::isAttr)) |
+ && element.namespaceURI() == HTMLNames::xhtmlNamespaceURI; |
+ } |
+ |
+ bool isAutonomous() const { return m_name == m_localName; } |
+ |
private: |
AtomicString m_name; |
AtomicString m_localName; |