Added Closest again.

Author: udan-jayanith

node-tree.go

@@ -211,6 +211,16 @@ func (node *Node) IsTextNode() bool {
 // Adapted from [https://developer.mozilla.org/en-US/docs/Web/API/Element/closest](MDN Element: closest() method)
 func (node *Node) Closest(selector string) *Node {
 	traverser := NewTraverser(node)
-	
+	selectors := TokenizeSelectorsAndCombinators(selector)
+
+	for traverser.GetCurrentNode() != nil {
+		if matchFromRightMostSelectors(traverser.GetCurrentNode(), selectors) {
+			break
+		} else if traverser.GetCurrentNode().GetPreviousNode() == nil {
+			traverser.SetCurrentNodeTo(traverser.GetCurrentNode().GetParent())
+		} else {
+			traverser.Previous()
+		}
+	}
 	return traverser.GetCurrentNode()
 }

node-tree_test.go

@@ -114,7 +114,6 @@ func TestRemoveNode(t *testing.T){
 	//t.Log(GoHtml.NodeTreeToHTML(article))
 }
 
-/*
 func TestClosest(t *testing.T){
 	node, err := testFile4NodeTree()
 	if err != nil{
@@ -125,13 +124,12 @@ func TestClosest(t *testing.T){
 		t.Fatal("Node is nil.")
 	}
 
-	node = node.Closest("ol .ordered-list")
+	node = node.Closest("img+.ordered-list")
 	if node == nil {
 		t.Fatal("Node is nil")
 	}else if node.GetTagName() != "ol"{
 		t.Fatal("Unexpected element.")
 	}
 
 
-}
-*/
+}