title: How to get selected value of Kendo UI Editor content
body: <p>I need insert custom editor tool for inserting links into rich text. It should work as basic link insert in editor but in dialog window I need treeview with our documents structure for select target of link.</p>
  
  <p>Please can you help me with syntax for get selected text of editor content?</p>
  
  <p>Best regards
  David</p>