editor: canvas keys handling - wrapping document transformations in transactions

[fnpeditor.git] / src / smartxml / core.js

diff --git a/src/smartxml/core.js b/src/smartxml/core.js
index dd472ce..867353d 100644 (file)
--- a/src/smartxml/core.js
+++ b/src/smartxml/core.js
@@ -1,10 +1,11 @@
-define([
-
-], function() {
+define(function(require) {
     
 'use strict';
 /* globals Node */
-var TEXT_NODE = Node.TEXT_NODE;
+
+var _ = require('libs/underscore'),
+    TEXT_NODE = Node.TEXT_NODE;
+
 
 var INSERTION = function(implementation) {
     var toret = function(node) {
@@ -98,6 +99,8 @@ var elementNodeTransformations = {
         if(this.sameNode(this.document.root)) {
             this.document._defineDocumentProperties(node._$);
         }
+
+        /* TODO: This invalidates old references to this node. Caching instances on nodes would fix this. */
         this._$.replaceWith(node._$);
         this._setNativeNode(node._$[0]);
         this._$.append(myContents);
@@ -186,7 +189,6 @@ var elementNodeTransformations = {
 
 var textNodeTransformations = {
     setText: function(text) {
-        //console.log('smartxml: ' + text);
         this.nativeNode.data = text;
         this.triggerTextChangeEvent();
     },
@@ -251,6 +253,27 @@ var textNodeTransformations = {
         });
 
         return {first: parentElement, second: newElement};
+    },
+
+    divideWithElementNode: function(node, params) {
+        var insertion = this.getNodeInsertion(node),
+            myText = this.getText();
+
+        if(params.offset === myText.length) {
+            return this.after(node);
+        }
+        if(params.offset === 0) {
+            return this.before(node);
+        }
+
+        var lhsText = myText.substr(0, params.offset),
+            rhsText = myText.substr(params.offset),
+            rhsTextNode = this.document.createDocumentNode({text: rhsText});
+
+        this.setText(lhsText);
+        this.after(insertion.ofNode);
+        insertion.ofNode.after(rhsTextNode);
+        return insertion.ofNode;
     }
 };
 
@@ -347,7 +370,7 @@ var documentTransformations = {
         insertion.ofNode.triggerChangeEvent('nodeAdded');
         return insertion.ofNode;
     }
-}
+};
 
 return {
     document: {