+ if(params instanceof DocumentTextElement || params.text)
+ return false;
+ var element;
+ if(params instanceof DocumentNodeElement) {
+ element = params;
+ } else {
+ element = DocumentNodeElement.create(params);
+ }
+ this.dom().wrap('<div>');
+ this.dom().parent().after(element.dom());
+ this.dom().unwrap();
+ return element;
+ },
+ before: function(params) {
+ if(params instanceof DocumentTextElement || params.text)
+ return false;
+ var element;
+ if(params instanceof DocumentNodeElement) {
+ element = params;
+ } else {
+ element = DocumentNodeElement.create(params);
+ }
+ this.dom().wrap('<div>');
+ this.dom().parent().before(element.dom());
+ this.dom().unwrap();
+ return element;
+ },
+ wrapWithNodeElement: function(wlxmlNode) {
+ if(typeof wlxmlNode.start === 'number' && typeof wlxmlNode.end === 'number') {
+ return this.canvas.wrapText({
+ inside: this.parent(),
+ textNodeIdx: this.parent().childIndex(this),
+ offsetStart: Math.min(wlxmlNode.start, wlxmlNode.end),
+ offsetEnd: Math.max(wlxmlNode.start, wlxmlNode.end),
+ _with: {tag: wlxmlNode.tag, klass: wlxmlNode.klass}
+ });
+ } else {
+ return DocumentElement.prototype.wrapWithNodeElement.call(this, wlxmlNode);
+ }
+ },
+ unwrap: function() {
+ var parent = this.parent();
+ if(parent.children().length === 1) {
+ var grandParent = parent.parent();
+ if(grandParent) {
+ var grandParentChildren = grandParent.children(),
+ idx = grandParent.childIndex(parent),
+ prev = idx - 1 > -1 ? grandParentChildren[idx-1] : null,
+ next = idx + 1 < grandParentChildren.length ? grandParentChildren[idx+1] : null;
+ if(prev && next) {
+ prev.setText(prev.getText() + this.getText() + next.getText());
+ next.detach();
+ } else if (prev || next) {
+ var target = prev ? prev : next;
+ target.setText(target.getText() + this.getText());
+ } else {
+ parent.after(this);
+ }
+ } else {
+ parent.after(this);
+ }
+ parent.detach();
+ }
+ },
+ split: function(params) {
+ var parentElement = this.parent(),
+ myIdx = parentElement.childIndex(this),
+ myCanvas = this.canvas,
+ passed = false,
+ succeedingChildren = [],
+ thisElement = this,
+ prefix = this.getText().substr(0, params.offset),
+ suffix = this.getText().substr(params.offset);