From 7234259fa025569d6a7682aa6c74fdcfb3ca7e17 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Aleksander=20=C5=81ukasz?=
 <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Fri, 21 Jun 2013 14:24:55 +0200
Subject: [PATCH] canvas api wip: getting previous node

---
 modules/documentCanvas/canvas.js            | 15 +++++++++++++--
 modules/documentCanvas/tests/canvas.test.js | 16 +++++++++++++++-
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/modules/documentCanvas/canvas.js b/modules/documentCanvas/canvas.js
index 92c02c6..eb0fd0b 100644
--- a/modules/documentCanvas/canvas.js
+++ b/modules/documentCanvas/canvas.js
@@ -36,6 +36,14 @@ Canvas.prototype.getNode = function(desc) {
     return toret;
 }
 
+Canvas.prototype.getPreviousNode = function(options) {
+    var element = $(this.content.find('#' + options.node.id).get(0));
+    var prev = element.prev()
+    if(prev.length === 0)
+        prev = element.parent();
+    return new wlxmlNode.Node(prev);
+}
+
 Canvas.prototype._createNode = function(wlxmlTag, wlxmlClass) {
             var toBlock = ['div', 'document', 'section', 'header'];
             var htmlTag = _.contains(toBlock, wlxmlTag) ? 'div' : 'span';
@@ -49,8 +57,11 @@ Canvas.prototype._createNode = function(wlxmlTag, wlxmlClass) {
 
 Canvas.prototype.insertNode = function(options) {
     var element = $(this.content.find('#' + options.context.id).get(0));
-    if(options.place == 'after')
-        element[options.place](this._createNode(options.tag, options.klass));
+    if(options.place == 'after') {
+        var node = this._createNode(options.tag, options.klass);
+        element[options.place](node);
+        return node;
+    }
     else if(options.place == 'wrapText') {
         var elementContents = element.contents();
         if(elementContents.length !== 1 || elementContents.get(0).nodeType != 3)
diff --git a/modules/documentCanvas/tests/canvas.test.js b/modules/documentCanvas/tests/canvas.test.js
index 6ba3f42..57ad625 100644
--- a/modules/documentCanvas/tests/canvas.test.js
+++ b/modules/documentCanvas/tests/canvas.test.js
@@ -54,6 +54,20 @@ define([
             assert.equal(header.tag, 'header');
             assert.equal(header.klass, 'some-class');
         });
+        
+        test('getting previous node', function() {
+            var c = new canvas.Canvas('<section><div class="some.class">Div 1</div><div class="some.other.class">Div 2</div></section>');
+            var secondDiv = c.getNode({tag: 'div'})[1];
+            var firstDiv = c.getPreviousNode({node: secondDiv});
+            assert.equal(firstDiv.klass, 'some-class');
+        })
+        
+        test('pervious node of node without "previous siblings" is its parent', function() {
+            var c = new canvas.Canvas('<section><div class="some.class">Div 1</div></section>');
+            var div = c.getNode({tag: 'div'})[0];
+            var section = c.getPreviousNode({node: div});
+            assert.equal(section.tag, 'section');
+        })
     
         test('inserting after', function() {
             var c = new canvas.Canvas('<section><header>Header 1</header></section>');
@@ -119,7 +133,7 @@ define([
                         <div class="list.item">a cat</div>\
                     </div>\
                 </section>');
-            
+
         });
     });
 
-- 
2.20.1