Do note split root document node element on hitting enter

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

diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js
index 9ce8a72..318a22f 100644 (file)
--- a/modules/documentCanvas/canvas/canvas.js
+++ b/modules/documentCanvas/canvas/canvas.js
@@ -146,7 +146,13 @@ $.extend(Canvas.prototype, {
                     var cursor = canvas.getCursor();
                     if(!cursor.isSelecting()) {
                         var position = cursor.getPosition(),
-                            elements = position.element.split({offset: position.offset}),
+                            element = position.element;
+
+                        if(!(element.parent().parent())) {
+                            return false; // top level element is unsplittable
+                        }
+
+                        var elements = position.element.split({offset: position.offset}),
                             newEmpty,
                             goto;
 
@@ -319,6 +325,59 @@ $.extend(Canvas.prototype, {
             wrapperElement.after({text: suffixOutside});
         return wrapperElement;
     },
+
+    wrapElements: function(params) {
+        if(!(params.element1.parent().sameNode(params.element2.parent())))
+            return;
+
+        var parent = params.element1.parent(),
+            parentChildren = parent.children(),
+            wrapper = documentElement.DocumentNodeElement.create({
+                tag: params._with.tag,
+                klass: params._with.klass}),
+            idx1 = parent.childIndex(params.element1),
+            idx2 = parent.childIndex(params.element2);
+
+        if(idx1 > idx2) {
+            var tmp = idx1;
+            idx1 = idx2;
+            idx2 = tmp;
+        }
+
+        var insertingMethod, insertingTarget;
+        if(idx1 === 0) {
+            insertingMethod = 'prepend';
+            insertingTarget = parent;
+        } else {
+            insertingMethod = 'after';
+            insertingTarget = parentChildren[idx1-1];
+        }
+
+        for(var i = idx1; i <= idx2; i++) {
+            wrapper.append(parentChildren[i].detach());
+        }
+
+        insertingTarget[insertingMethod](wrapper);
+        return wrapper;
+    },
+
+    getSiblingParents: function(params) {
+        var parents1 = [params.element1].concat(params.element1.parents()).reverse(),
+            parents2 = [params.element2].concat(params.element2.parents()).reverse(),
+            noSiblingParents = null;
+
+        if(parents1.length === 0 || parents2.length === 0 || !(parents1[0].sameNode(parents2[0])))
+            return noSiblingParents;
+
+        var i;
+        for(i = 0; i < Math.min(parents1.length, parents2.length); i++) {
+            if(parents1[i].sameNode(parents2[i]))
+                continue;
+            break;
+        }
+        return {element1: parents1[i], element2: parents2[i]};
+    },
+
     getDocumentElement: function(from) {
         if(from instanceof HTMLElement || from instanceof Text) {
            return documentElement.DocumentElement.fromHTMLElement(from, this);