Setting global action map and input map.

Question

I was needing a way to set up the global inputmaps and actionmap. Currently I am grabbing the rootpane of the JFrame and manipulating the input maps there but I was hoping to be able to change the the input maps for whole classes of components such as adding a default to the UI some how so that all buttons respond to an 'Enter' key.
So far all the solutions invloved modifying individual components, nothing really looked like a way to modify the all JButtons or all JDialogs to add inputmaps/actionmaps.

Answer 1

Try this fun example.
Foucs the button. Press some random keys. Press the space key.
import javax.swing.*;
* @author Ian Schneider
public class UIInputDefaults {
    public static void main(String[] args) throws Exception {
        UIManager.getDefaults().put("Button.actionMap",new ActionMap() {
            public Action get(Object key) {
                Action retValue;
                System.out.println("action "+ key);
                retValue = super.get(key);
                return retValue;
        final InputMap original = (InputMap) UIManager.getDefaults().get("Button.focusInputMap");
        InputMap ours = new InputMap() {
            public Object get(KeyStroke keyStroke) {
                System.out.println("key " + keyStroke);
                return super.get(keyStroke);
        KeyStroke[] keys = original.keys();
        for (int i = 0; i < keys.length; i++) {
            ours.put(keys,original.get(keys[i]));
UIManager.getDefaults().put("Button.focusInputMap", ours);
JButton b = new JButton("Foo");
javax.swing.JFrame f = new javax.swing.JFrame();
f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
f.getContentPane().add(b);
f.pack();
f.setVisible(true);