+ transformations: new transformations.TransformationStorage(),
+
+ createDocumentNode: function(from) {
+ if(!(from instanceof Node)) {
+ if(from.text !== undefined) {
+ /* globals document */
+ from = document.createTextNode(from.text);
+ } else {
+ var node = $('<' + from.tagName + '>');
+
+ _.keys(from.attrs || {}).forEach(function(key) {
+ node.attr(key, from.attrs[key]);
+ });
+
+ from = node[0];
+ }
+ }
+ var Factory;
+ if(from.nodeType === Node.TEXT_NODE) {
+ Factory = this.TextNodeFactory;
+ } else if(from.nodeType === Node.ELEMENT_NODE) {
+ Factory = this.ElementNodeFactory;
+ }
+ return new Factory(from, this);
+ },
+
+ loadXML: function(xml, options) {
+ options = options || {};
+ defineDocumentProperties(this, $(parseXML(xml)));
+ if(!options.silent) {
+ this.trigger('contentSet');
+ }
+ },
+
+ toXML: function() {
+ return this.root.toXML();
+ },
+
+ containsNode: function(node) {
+ return this.root && (node.nativeNode === this.root.nativeNode || node._$.parents().index(this.root._$) !== -1);
+ },
+
+ wrapNodes: function(params) {
+ if(!(params.node1.parent().sameNode(params.node2.parent()))) {
+ throw new Error('Wrapping non-sibling nodes not supported.');
+ }
+
+ var parent = params.node1.parent(),
+ parentContents = parent.contents(),
+ wrapper = this.createDocumentNode({
+ tagName: params._with.tagName,
+ attrs: params._with.attrs}),
+ idx1 = parent.indexOf(params.node1),
+ idx2 = parent.indexOf(params.node2);
+
+ if(idx1 > idx2) {
+ var tmp = idx1;
+ idx1 = idx2;
+ idx2 = tmp;
+ }
+
+ var insertingMethod, insertingTarget;
+ if(idx1 === 0) {
+ insertingMethod = 'prepend';
+ insertingTarget = parent;
+ } else {
+ insertingMethod = 'after';
+ insertingTarget = parentContents[idx1-1];
+ }
+
+ for(var i = idx1; i <= idx2; i++) {
+ wrapper.append(parentContents[i].detach());
+ }
+
+ insertingTarget[insertingMethod](wrapper);
+ return wrapper;
+ },
+
+ getSiblingParents: function(params) {
+ var parents1 = [params.node1].concat(params.node1.parents()).reverse(),
+ parents2 = [params.node2].concat(params.node2.parents()).reverse(),
+ noSiblingParents = null;
+
+ if(parents1.length === 0 || parents2.length === 0 || !(parents1[0].sameNode(parents2[0]))) {
+ return noSiblingParents;
+ }