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-rw-r--r--dom/base/nsContentList.h40
1 files changed, 38 insertions, 2 deletions
diff --git a/dom/base/nsContentList.h b/dom/base/nsContentList.h
index 3878074b2..83d27da95 100644
--- a/dom/base/nsContentList.h
+++ b/dom/base/nsContentList.h
@@ -371,9 +371,9 @@ protected:
* traversed the whole document (or both).
*
* @param aNeededLength the length the list should have when we are
- * done (unless it exhausts the document)
+ * done (unless it exhausts the document)
*/
- void PopulateSelf(uint32_t aNeededLength);
+ virtual void PopulateSelf(uint32_t aNeededLength);
/**
* @param aContainer a content node which must be a descendant of
@@ -584,4 +584,40 @@ public:
#endif
};
+class nsLabelsNodeList final : public nsContentList
+{
+public:
+ nsLabelsNodeList(nsINode* aRootNode,
+ nsContentListMatchFunc aFunc,
+ nsContentListDestroyFunc aDestroyFunc,
+ void* aData)
+ : nsContentList(aRootNode, aFunc, aDestroyFunc, aData)
+ {
+ }
+
+ NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
+ NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
+ NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
+ NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
+
+ virtual JSObject* WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
+
+ /**
+ * Reset root, mutation observer, and clear content list
+ * if the root has been changed.
+ *
+ * @param aRootNode The node under which to limit our search.
+ */
+ void MaybeResetRoot(nsINode* aRootNode);
+
+private:
+ /**
+ * Start searching at the last one if we already have nodes, otherwise
+ * start searching at the root.
+ *
+ * @param aNeededLength The list of length should have when we are
+ * done (unless it exhausts the document).
+ */
+ void PopulateSelf(uint32_t aNeededLength) override;
+};
#endif // nsContentList_h___