How to disable custom Shortkeys only when user is typing in some component and enable it again when focus is not on editable component in java?

Question

I am using following code to set shortcut keys for my JFrame.

KeyboardFocusManager keyManager;
keyManager=KeyboardFocusManager.getCurrentKeyboardFocusManager();
keyManager.addKeyEventDispatcher(new KeyEventDispatcher() {
     @Override
     public boolean dispatchKeyEvent(KeyEvent e){
          if(e.getID()==KeyEvent.KEY_PRESSED && e.getKeyCode()==KeyEvent.VK_C && e.isShiftDown()){
               //shift+c
               openCalculator();
          }
     return false;
}});

And it works fine! but the problem is that when user is writing something in some textfield or table cells etc. and wants to write any capital letter let's say C ompose and presses Shift+C to capitalise then my code accepts this as a shortcut key and instead of writing the capital letter that event is fired.

What I want to do is disable this event for all editable cells, fields etc through out the program And enable it back again when the editable component loses focus. I want my shortcut keys to only work when user is not editing any field or writing something in the program.

Answer 1

I resolved this with a check on KeyDispatchEvent by identifying specific instances of the components on which I don't want my event to work when focused.

boolean check = true;
try 
{
    Component comp = FocusManager.getCurrentManager().getFocusOwner();
    if(comp instanceof JTextField || comp instanceof JTextArea || comp instanceof JComboBox || comp instanceof JTable){
         check = false;
     } 
     } catch (Exception ee) { ee.printStackTrace();
        check = true;
      }
}
if (check)
{
      //do something
}