private void removeDefaultKeys() {
InputMap mainMap = SwingUtilities.getUIInputMap(this, JComponent.WHEN_FOCUSED);
mainMap.remove(KeyStroke.getKeyStroke("ctrl C"));
mainMap.remove(KeyStroke.getKeyStroke("ctrl X"));
mainMap.remove(KeyStroke.getKeyStroke("ctrl V"));
}
/**
* A helper for creating and updating key bindings for components with mnemonics. The {@code
* pressed} action will be invoked when the mnemonic is activated and the {@code released} action
* will be invoked when the mnemonic is deactivated.
*
* <p>TODO establish an interface for the mnemonic properties, such as {@code MnemonicEnabled} and
* change signature to {@code public static <T extends JComponent & MnemonicEnabled> void
* updateMnemonicBinding(T c, String pressed, String released)}
*
* @param c the component bindings to update
* @param pressed the name of the action in the action map to invoke when the mnemonic is pressed
* @param released the name of the action in the action map to invoke when the mnemonic is
* released (if the action is a toggle style, then this parameter should be {@code null})
* @throws NullPointerException if the component is {@code null}
*/
public static void updateMnemonicBinding(JComponent c, String pressed, String released) {
Class<?> clazz = c.getClass();
int m = -1;
try {
Method mtd = clazz.getMethod("getMnemonic");
m = (Integer) mtd.invoke(c);
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new IllegalArgumentException("unable to access mnemonic", e);
}
InputMap map = SwingUtilities.getUIInputMap(c, JComponent.WHEN_IN_FOCUSED_WINDOW);
if (m != 0) {
if (map == null) {
map = new ComponentInputMapUIResource(c);
SwingUtilities.replaceUIInputMap(c, JComponent.WHEN_IN_FOCUSED_WINDOW, map);
}
map.clear();
// TODO is ALT_MASK right for all platforms?
map.put(KeyStroke.getKeyStroke(m, InputEvent.ALT_MASK, false), pressed);
map.put(KeyStroke.getKeyStroke(m, InputEvent.ALT_MASK, true), released);
map.put(KeyStroke.getKeyStroke(m, 0, true), released);
} else {
if (map != null) {
map.clear();
}
}
}
/** Installs the state needed for mnemonics. */
private void initMnemonics() {
mnemonicToIndexMap = new Hashtable();
mnemonicInputMap = new InputMapUIResource();
mnemonicInputMap.setParent(
SwingUtilities.getUIInputMap(tabPane, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT));
SwingUtilities.replaceUIInputMap(
tabPane, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, mnemonicInputMap);
}
/*
* Load key bindings from UIDefaults to InputMap. This occurs
* when the default button is assigned.
*/
private void loadDefaultButtonKeyBindings(final JComponent root) {
Object[] bindings = ((Object[]) UIManager.get("RootPane.defaultButtonWindowKeyBindings"));
if (bindings != null) {
InputMap map =
SwingUtilities.getUIInputMap(root, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
LookAndFeel.loadKeyBindings(map, bindings);
}
}
// TODO accelerators for buttons
private static void installAccelerator(Action action, final JButton button) {
if (action.getValue(Action.ACCELERATOR_KEY) instanceof KeyStroke) {
KeyStroke keyStroke = (KeyStroke) action.getValue(Action.ACCELERATOR_KEY);
InputMap windowInputMap =
SwingUtilities.getUIInputMap(button, JComponent.WHEN_IN_FOCUSED_WINDOW);
if (windowInputMap == null) {
windowInputMap = new ComponentInputMapUIResource(button);
SwingUtilities.replaceUIInputMap(button, JComponent.WHEN_IN_FOCUSED_WINDOW, windowInputMap);
}
windowInputMap.put(keyStroke, keyStroke.toString());
button.getActionMap().put(keyStroke.toString(), action);
}
}
private void unloadDefaultButtonKeyBindings(final JComponent root) {
Object[] bindings = ((Object[]) UIManager.get("RootPane.defaultButtonWindowKeyBindings"));
if (bindings != null) {
InputMap map =
SwingUtilities.getUIInputMap(root, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
for (int i = 0; i < bindings.length; i += 2) {
if (bindings[i] instanceof String) {
map.remove(KeyStroke.getKeyStroke((String) bindings[i]));
} else {
map.remove((KeyStroke) bindings[i]);
}
}
}
}
private void uninstallTracking() {
InputMap currMap = SwingUtilities.getUIInputMap(this.jcomp, JComponent.WHEN_FOCUSED);
if (currMap != null) {
InputMap newMap = new InputMap();
KeyStroke[] kss = currMap.allKeys();
for (int i = 0; i < kss.length; i++) {
KeyStroke stroke = kss[i];
Object val = currMap.get(stroke);
if (stroke.equals(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0))
&& "flipTextSelection".equals(val)) {
continue;
}
newMap.put(stroke, val);
}
SwingUtilities.replaceUIInputMap(this.jcomp, JComponent.WHEN_FOCUSED, newMap);
}
this.jcomp.getActionMap().remove("flipTextSelection");
}
private void updateMnemonic(int lastMnemonic, int mnemonic) {
if (mnemonic == lastMnemonic) {
return;
}
InputMap windowInputMap = SwingUtilities.getUIInputMap(this, JComponent.WHEN_IN_FOCUSED_WINDOW);
int mask = SystemInfo.isMac ? InputEvent.ALT_MASK | InputEvent.CTRL_MASK : InputEvent.ALT_MASK;
if (lastMnemonic != 0 && windowInputMap != null) {
windowInputMap.remove(KeyStroke.getKeyStroke(lastMnemonic, mask, false));
}
if (mnemonic != 0) {
if (windowInputMap == null) {
windowInputMap = new ComponentInputMapUIResource(this);
SwingUtilities.replaceUIInputMap(this, JComponent.WHEN_IN_FOCUSED_WINDOW, windowInputMap);
}
windowInputMap.put(KeyStroke.getKeyStroke(mnemonic, mask, false), "doClick");
}
}
private void installTracking() {
InputMap currMap = SwingUtilities.getUIInputMap(this.jcomp, JComponent.WHEN_FOCUSED);
InputMap newMap = new InputMap();
if (currMap != null) {
KeyStroke[] kss = currMap.allKeys();
for (int i = 0; i < kss.length; i++) {
KeyStroke stroke = kss[i];
Object val = currMap.get(stroke);
newMap.put(stroke, val);
}
}
newMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "flipTextSelection");
this.jcomp
.getActionMap()
.put(
"flipTextSelection",
new AbstractAction() {
public void actionPerformed(ActionEvent e) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
int selectionLength = jcomp.getSelectionEnd() - jcomp.getSelectionStart();
if (selectionLength == 0) {
jcomp.selectAll();
} else {
int lastPos = jcomp.getSelectionEnd();
jcomp.setSelectionStart(0);
jcomp.setSelectionEnd(0);
jcomp.setCaretPosition(lastPos);
}
}
});
}
});
SwingUtilities.replaceUIInputMap(this.jcomp, JComponent.WHEN_FOCUSED, newMap);
}
