Retrieving Multiple Range Selection in Spreadsheet (GAS)

In Spreadsheets Add-on (Google Apps Script),

vars=SpreadsheetApp.getActiveSheet();
range=ss.getActiveRange();
var values = range.getValues();

Then, if the selection range is selected in Ctrl or Command over multiple areas, such as images,

 value: [[a11, b11, c11], [a12, b12, c12], [a13, b13, c13], [a14, b14, c14]]

returns (only the last selected part returns values)

I would like to get the range that I originally selected as range, but is there any way?