From a30654944f1af2db12a3fc1b7b1bfbd223f4f76c Mon Sep 17 00:00:00 2001
From: =?utf8?q?Aleksander=20=C5=81ukasz?=
 <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Thu, 10 Oct 2013 15:39:02 +0200
Subject: [PATCH 1/1] smartxml: trigger events on attr change

---
 src/smartxml/events.js   | 18 ++++++++++++++++++
 src/smartxml/smartxml.js | 15 ++++++++++++---
 2 files changed, 30 insertions(+), 3 deletions(-)
 create mode 100644 src/smartxml/events.js

diff --git a/src/smartxml/events.js b/src/smartxml/events.js
new file mode 100644
index 0000000..c5e84c4
--- /dev/null
+++ b/src/smartxml/events.js
@@ -0,0 +1,18 @@
+define([
+
+], function() {
+
+'use strict';
+
+
+var ChangeEvent = function(type, meta) {
+    this.type = type;
+    this.meta = meta;
+};
+
+
+return {
+    ChangeEvent: ChangeEvent
+};
+
+});
\ No newline at end of file
diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 477166b..bac53af 100644
--- a/src/smartxml/smartxml.js
+++ b/src/smartxml/smartxml.js
@@ -1,6 +1,8 @@
 define([
-    'libs/jquery'
-], function($) {
+    'libs/jquery',
+    'libs/backbone',
+    'smartxml/events'
+], function($, Backbone, events) {
     
 'use strict';
 
@@ -38,6 +40,11 @@ $.extend(DocumentNode.prototype, {
         }
         node.append(this);
     },
+
+    triggerChangeEvent: function(type, metaData) {
+        var event = new events.ChangeEvent(type, $.extend({node: this}, metaData || {}));
+        this.document.trigger('change', event);
+    },
 });
 
 var ElementNode = function(nativeNode, document) {
@@ -74,7 +81,9 @@ $.extend(ElementNode.prototype, DocumentNode.prototype, {
     },
 
     setAttr: function(name, value) {
+        var oldVal = this.getAttr(name);
         this._$.attr(name, value);
+        this.triggerChangeEvent('nodeAttrChange', {attr: name, oldVal: oldVal, newVal: value});
     },
 
     getAttrs: function() {
@@ -178,7 +187,7 @@ var Document = function(xml) {
         return $document[0];
     }});
 };
-$.extend(Document.prototype, {
+$.extend(Document.prototype, Backbone.Events, {
     ElementNodeFactory: ElementNode,
     TextNodeFactory: TextNode,
 
-- 
2.20.1