title: Extjs file path chooser
body: <p>I have rest client with extjs and i want to let the user choose where to save the file. The file is saved as a pdf on the client machine via java and itextpdf library. I have to send only file path to the client back-end . How to create 'save as' dialog to get only file path?
  There is xtype: filefield in extjs but it is used to choose existing file. I need to choose path to the new file.</p>