From 512fcabb2a882e26649612efb2b91f25cfc02ec3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Aleksander=20=C5=81ukasz?=
 <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Wed, 23 Oct 2013 11:33:26 +0200
Subject: [PATCH] smartxml: setTag

---
 src/smartxml/smartxml.js      | 35 +++++++++++++++++++++++++++++------
 src/smartxml/smartxml.test.js | 12 ++++++++++++
 2 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 1876076..cb90e74 100644
--- a/src/smartxml/smartxml.js
+++ b/src/smartxml/smartxml.js
@@ -16,11 +16,16 @@ var DocumentNode = function(nativeNode, document) {
         throw new Error('undefined document for a node');
     }
     this.document = document;
-    this.nativeNode = nativeNode;
-    this._$ = $(nativeNode);
+    this._setNativeNode(nativeNode);
+
 };
 
 $.extend(DocumentNode.prototype, {
+    _setNativeNode: function(nativeNode) {
+        this.nativeNode = nativeNode;
+        this._$ = $(nativeNode);
+    },
+
     detach: function() { this._$.detach(); },
 
     sameNode: function(otherNode) {
@@ -93,14 +98,29 @@ $.extend(ElementNode.prototype, DocumentNode.prototype, {
         return this._$.contents().index(node._$);
     },
 
+    setTag: function(tagName) {
+        var node = this.document.createElementNode({tagName: tagName}),
+            oldTagName = this.getTagName();
+
+        this.getAttrs().forEach(function(attribute) {
+            node.setAttr(attribute.name, attribute.value, true);
+        });
+        node.setData(this.getData());
+
+        this._setNativeNode(node._$[0]);
+        this.triggerChangeEvent('nodeTagChange', {oldTagName: oldTagName, newTagName: this.getTagName()});
+    },
+
     getAttr: function(name) {
         return this._$.attr(name);
     },
 
-    setAttr: function(name, value) {
+    setAttr: function(name, value, silent) {
         var oldVal = this.getAttr(name);
         this._$.attr(name, value);
-        this.triggerChangeEvent('nodeAttrChange', {attr: name, oldVal: oldVal, newVal: value});
+        if(!silent) {
+            this.triggerChangeEvent('nodeAttrChange', {attr: name, oldVal: oldVal, newVal: value});
+        }
     },
 
     getAttrs: function() {
@@ -208,8 +228,11 @@ $.extend(Document.prototype, Backbone.Events, {
     ElementNodeFactory: ElementNode,
     TextNodeFactory: TextNode,
 
-    createElementNode: function(nativeNode) {
-        return new this.ElementNodeFactory(nativeNode, this);
+    createElementNode: function(from) {
+        if(!(from instanceof HTMLElement)) {
+            from = $('<' + from.tagName + '>');
+        }
+        return new this.ElementNodeFactory(from, this);
     },
 
     createTextNode: function(nativeNode) {
diff --git a/src/smartxml/smartxml.test.js b/src/smartxml/smartxml.test.js
index 3eed027..d997aa7 100644
--- a/src/smartxml/smartxml.test.js
+++ b/src/smartxml/smartxml.test.js
@@ -66,6 +66,18 @@ describe('smartxml', function() {
                 expect(node.getData()).to.eql({key1: 'value1', key2: 'value2'});
             });
         });
+
+        describe('Changing node tag', function() {
+            it('keeps custom data', function() {
+                var node = elementNodeFromXML('<div></div>');
+
+                node.setData('key', 'value');
+                node.setTag('header');
+                
+                expect(node.getTagName()).to.equal('header');
+                expect(node.getData()).to.eql({key: 'value'});
+            });
+        });
     });
 
     describe('Manipulations', function() {
-- 
2.20.1