/** Flashes the visual bell. This class has no other public API. */
public void flash() {
if (GuiUtilities.isMacOs()) {
// Mac OS has a system-wide "visual bell" that looks much better than ours.
// You can turn this on in the Universal Access preference pane, by checking "Flash the screen
// when an alert sound occurs".
// We can take advantage of Apple's hard work if the user has this turned on by "actually"
// ringing the bell.
// This doesn't change our "no noise pollution" policy, if you ignore the very unlikely race
// condition.
ArrayList<String> result = new ArrayList<String>();
ArrayList<String> errors = new ArrayList<String>();
int status =
ProcessUtilities.backQuote(
null,
new String[] {
"defaults",
"-currentHost",
"read",
"Apple Global Domain",
"com.apple.sound.beep.flash"
},
result,
errors);
if (status == 0 && errors.size() == 0 && result.size() == 1 && result.get(0).equals("1")) {
Toolkit.getDefaultToolkit().beep();
return;
}
}
setBellVisibility(true);
timer.restart();
}
private void initKeyboardEquivalent() {
String key = "TAB";
boolean shifted = (indexDelta == -1);
boolean tabDoesNotWork = true;
if (tabDoesNotWork || GuiUtilities.isMacOs()) {
key = (indexDelta == -1) ? "OPEN_BRACKET" : "CLOSE_BRACKET";
shifted = true;
}
putValue(ACCELERATOR_KEY, GuiUtilities.makeKeyStroke(key, shifted));
}