Splitting text: Returning node elements involved

[fnpeditor.git] / modules / documentCanvas / canvas / canvas.js

diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js
index 0d92d55..144417a 100644 (file)
--- a/modules/documentCanvas/canvas/canvas.js
+++ b/modules/documentCanvas/canvas/canvas.js
@@ -179,14 +179,17 @@ $.extend(Canvas.prototype, {
 
     setCurrentElement: function(element, params) {
         params = _.extend({caretTo: 'end'}, params);
-        var findFirstDirectTextChild = function(e) {
+        var findFirstDirectTextChild = function(e, nodeToLand) {
+            var byBrowser = this.getCursor().getPosition().element;
+            if(byBrowser && byBrowser.parent().sameNode(nodeToLand))
+                return byBrowser;
             var children = e.children();
             for(var i = 0; i < children.length; i++) {
                 if(children[i] instanceof documentElement.DocumentTextElement)
                     return children[i];
             }
             return null;
-        };
+        }.bind(this);
         var _markAsCurrent = function(element) {
             if(element instanceof documentElement.DocumentTextElement) {
                 this.wrapper.find('.current-text-element').removeClass('current-text-element');
@@ -197,43 +200,60 @@ $.extend(Canvas.prototype, {
                 this.publisher('currentElementChanged', element);
             }
         }.bind(this);
-        var _moveCaretToTextElement = function(element, where) {
-            var range = document.createRange();
-            range.selectNodeContents(element.dom().contents()[0]);
-            
-            var collapseArg = true;
-            if(where === 'end')
-                collapseArg = false;
-            range.collapse(collapseArg);
-            var selection = document.getSelection();
-            selection.removeAllRanges();
-            selection.addRange(range);
-        };
+
 
         var isTextElement = element instanceof documentElement.DocumentTextElement,
-            textElementToLand = isTextElement ? element : findFirstDirectTextChild(element),
             nodeElementToLand = isTextElement ? element.parent() : element,
+            textElementToLand = isTextElement ? element : findFirstDirectTextChild(element, nodeElementToLand),
             currentTextElement = this.getCurrentTextElement(),
             currentNodeElement = this.getCurrentNodeElement();
 
         if(currentTextElement && !(currentTextElement.sameNode(textElementToLand)))
             this.wrapper.find('.current-text-element').removeClass('current-text-element');
 
-        if(textElementToLand && !(textElementToLand.sameNode(currentTextElement))) {
+        if(textElementToLand) {
             _markAsCurrent(textElementToLand);
-            if(params.caretTo)
-                _moveCaretToTextElement(textElementToLand, params.caretTo); // as method on element?
-            this.publisher('currentTextElementSet', element);
+            if(params.caretTo || !textElementToLand.sameNode(this.getCursor().getPosition().element))
+                this._moveCaretToTextElement(textElementToLand, params.caretTo); // as method on element?
+            if(!(textElementToLand.sameNode(currentTextElement)))
+                this.publisher('currentTextElementSet', element);
+        } else {
+            document.getSelection().removeAllRanges();
         }
 
         if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) {
             _markAsCurrent(nodeElementToLand);
-            if(!textElementToLand)
-                document.getSelection().removeAllRanges();
+
             this.publisher('currentNodeElementSet', nodeElementToLand);
         }
-    }
+    },
+
+    _moveCaretToTextElement: function(element, where) {
+        var range = document.createRange(),
+            node = element.dom().contents()[0];
 
+        if(typeof where !== 'number') {
+            range.selectNodeContents(node);
+        } else {
+            range.setStart(node, where);
+        }
+        
+        var collapseArg = true;
+        if(where === 'end')
+            collapseArg = false;
+        range.collapse(collapseArg);
+        
+        var selection = document.getSelection();
+
+        selection.removeAllRanges();
+        selection.addRange(range);
+        this.wrapper.focus(); // FF requires this for caret to be put where range colllapses, Chrome doesn't.
+    },
+
+    setCursorPosition: function(position) {
+        if(position.element)
+            this._moveCaretToTextElement(position.element, position.offset);
+    }
 });
 
 $.extend(Canvas.prototype.list, {