From b73a6dece28f0f6bb4dc87a7c5386b1cbaac10f5 Mon Sep 17 00:00:00 2001
From: David Frank <bitinn@gmail.com>
Date: Sun, 12 Jul 2015 02:21:05 +0800
Subject: [PATCH] make sure we lookup key attribute recursively

---
 dist.js      | 11 ++++++-----
 index.js     | 11 ++++++-----
 test/test.js | 15 +++++++++++++++
 3 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/dist.js b/dist.js
index 7eeae19..f80ab12 100644
--- a/dist.js
+++ b/dist.js
@@ -105,7 +105,7 @@ function createVirtualDomNode(el, attr) {
 	return new VNode(
 		el.tagName
 		, createProperties(el)
-		, createChildren(el)
+		, createChildren(el, attr)
 		, key
 		, ns
 	);
@@ -114,13 +114,14 @@ function createVirtualDomNode(el, attr) {
 /**
  * Recursively create vdom
  *
- * @param   Object  el  Parent element
- * @return  Array       Child vnode or vtext
+ * @param   Object  el    Parent element
+ * @param   String  attr  Attribute name that contains vdom key
+ * @return  Array         Child vnode or vtext
  */
-function createChildren(el) {
+function createChildren(el, attr) {
 	var children = [];
 	for (var i = 0; i < el.childNodes.length; i++) {
-		children.push(createNode(el.childNodes[i]));
+		children.push(createNode(el.childNodes[i], attr));
 	};
 
 	return children;
diff --git a/index.js b/index.js
index 19ed193..a95236a 100644
--- a/index.js
+++ b/index.js
@@ -104,7 +104,7 @@ function createVirtualDomNode(el, attr) {
 	return new VNode(
 		el.tagName
 		, createProperties(el)
-		, createChildren(el)
+		, createChildren(el, attr)
 		, key
 		, ns
 	);
@@ -113,13 +113,14 @@ function createVirtualDomNode(el, attr) {
 /**
  * Recursively create vdom
  *
- * @param   Object  el  Parent element
- * @return  Array       Child vnode or vtext
+ * @param   Object  el    Parent element
+ * @param   String  attr  Attribute name that contains vdom key
+ * @return  Array         Child vnode or vtext
  */
-function createChildren(el) {
+function createChildren(el, attr) {
 	var children = [];
 	for (var i = 0; i < el.childNodes.length; i++) {
-		children.push(createNode(el.childNodes[i]));
+		children.push(createNode(el.childNodes[i], attr));
 	};
 
 	return children;
diff --git a/test/test.js b/test/test.js
index f5ea47a..e18818e 100644
--- a/test/test.js
+++ b/test/test.js
@@ -515,4 +515,19 @@ describe('vdom-parser', function () {
 		expect(output.properties.id).to.be.undefined;
 		expect(output.properties.attributes['data-id']).to.equal('example');
 	});
+
+	it('should support optional key lookup, recursively', function () {
+		input = '<div id="abc"><p id="edf">test</p></div>';
+		output = parser(input, 'id');
+
+		expect(output.type).to.equal('VirtualNode');
+		expect(output.tagName).to.equal('DIV');
+		expect(output.key).to.equal('abc');
+
+		var children = output.children;
+		expect(children).to.have.length(1);
+		expect(children[0].type).to.equal('VirtualNode');
+		expect(children[0].tagName).to.equal('P');
+		expect(children[0].key).to.equal('edf');
+	});
 });