public void commandAction(Command c, Displayable d) {
int actionOld;
if (c == CMD_RESET) {
display.setCurrent(alertReset);
} else if (c == CMD.YES && d == alertReset) {
keyBindings.resetToDefaults();
updateList();
display.setCurrent(this);
} else if (c == CMD.NO && d == alertReset) {
display.setCurrent(this);
} else if (c == List.SELECT_COMMAND) { // an action to set a key for
// has been chosen
actionToBind = getSelectedIndex();
screenKeyBinder.configure(actionToBind);
display.setCurrent(screenKeyBinder);
} else if (c == CMD.YES && d == alertKeyConflict) {
actionOld = keyBindings.release(selectedKey);
keyBindings.bindKeyToAction(actionToBind, selectedKey);
updateList(actionToBind);
if (actionOld >= 0) updateList(actionOld);
display.setCurrent(this);
} else if (c == CMD.NO && d == alertKeyConflict) {
display.setCurrent(this);
} else if (externalCommandListener != null) {
externalCommandListener.commandAction(c, d);
} else {
Log.bug("Aug 21, 2009.8:06:24 PM");
}
}
/**
* Update the key name mapped to the given action in the displayed key bindings list.
*
* @param action
*/
private void updateList(int action) {
int key;
String keyName;
key = keyBindings.getKeyForAction(action);
try {
keyName = (key != 0) ? screenKeyBinder.getKeyName(key) : "";
} catch (IllegalArgumentException e) {
// may happen on version change or device firmware update
keyBindings.release(key);
keyName = "";
}
set(action, KeyBindings.actionNames[action] + ": " + keyName, null);
}
public KeyBindingsScreen(final Display display) {
super("Key Bindings", IMPLICIT);
this.display = display;
keyBindings = KeyBindings.getInstance();
screenKeyBinder = new KeyBinderScreen(this);
addCommand(CMD_RESET);
setCommandListener(this);
for (int i = 0; i < KeyBindings.actionNames.length; i++) append("", null);
updateList();
alertKeyConflict = new Alert("Key already in use!");
alertKeyConflict.setType(AlertType.WARNING);
alertKeyConflict.setTimeout(Alert.FOREVER);
alertKeyConflict.addCommand(CMD.NO);
alertKeyConflict.addCommand(CMD.YES);
alertKeyConflict.setCommandListener(this);
alertReset = new Alert("Please confirm:");
alertReset.setString("Reset to default key bindings?");
alertReset.setType(AlertType.WARNING);
alertReset.addCommand(CMD.NO);
alertReset.addCommand(CMD.YES);
alertReset.setCommandListener(this);
}
public void keyPressed(int key) {
int actionOld;
String keyName;
if (key == 0 || key == keyBindings.getKeyForAction(actionToBind)) {
display.setCurrent(this);
} else if (keyBindings.isBound(key)) {
selectedKey = key;
actionOld = keyBindings.getActionForKey(key);
keyName = screenKeyBinder.getKeyName(key);
msgKeyConflict.delete(0, msgKeyConflict.length());
msgKeyConflict.append("Key ").append(keyName);
msgKeyConflict.append(" is already in use for '");
msgKeyConflict.append(KeyBindings.actionNames[actionOld]).append("'.");
msgKeyConflict.append("\nDo you want to unset it from '");
msgKeyConflict.append(KeyBindings.actionNames[actionOld]);
msgKeyConflict.append("' and use it for '");
msgKeyConflict.append(KeyBindings.actionNames[actionToBind]).append("' ?");
alertKeyConflict.setString(msgKeyConflict.toString());
display.setCurrent(alertKeyConflict);
} else { // key is valid and free
keyBindings.bindKeyToAction(actionToBind, key);
updateList(actionToBind);
display.setCurrent(this);
}
}