/**
* Returns whether the given component is "actively" shown in screen, that is, it or any of its
* ancestors is focused.
*
* @param aComponent the component to determine whether it is actively shown on screen, may be
* <code>null</code>.
* @return <code>true</code> if the given component is actively shown, <code>false</code>
* otherwise.
*/
public static final boolean isActivelyShown(final Component aComponent) {
final KeyboardFocusManager kbdFocusManager =
KeyboardFocusManager.getCurrentKeyboardFocusManager();
final Window owner = kbdFocusManager.getFocusedWindow();
return ((aComponent != null)
&& (owner != null)
&& ((owner == aComponent) || owner.isAncestorOf(aComponent)));
}
/**
* Tries to find the current focused window.
*
* @return the current focused window, or <code>null</code> if no such window could be found.
*/
public static final Window getCurrentWindow() {
Window owner;
final KeyboardFocusManager kbdFocusManager =
KeyboardFocusManager.getCurrentKeyboardFocusManager();
owner = kbdFocusManager.getFocusedWindow();
if (owner == null) {
owner = kbdFocusManager.getActiveWindow();
}
return owner;
}
/**
* @return <code>true</code> if and only if the passed event is already dispatched by the <code>
* IdeKeyEventDispatcher</code> and there is no need for any other processing of the event.
*/
public boolean dispatchKeyEvent(final KeyEvent e) {
if (myDisposed) return false;
if (e.isConsumed()) {
return false;
}
// http://www.jetbrains.net/jira/browse/IDEADEV-12372
if (e.getKeyCode() == KeyEvent.VK_CONTROL) {
if (e.getID() == KeyEvent.KEY_PRESSED) {
myLeftCtrlPressed = e.getKeyLocation() == KeyEvent.KEY_LOCATION_LEFT;
} else if (e.getID() == KeyEvent.KEY_RELEASED) {
myLeftCtrlPressed = false;
}
} else if (e.getKeyCode() == KeyEvent.VK_ALT) {
if (e.getID() == KeyEvent.KEY_PRESSED) {
myRightAltPressed = e.getKeyLocation() == KeyEvent.KEY_LOCATION_RIGHT;
} else if (e.getID() == KeyEvent.KEY_RELEASED) {
myRightAltPressed = false;
}
}
KeyboardFocusManager focusManager = KeyboardFocusManager.getCurrentKeyboardFocusManager();
Component focusOwner = focusManager.getFocusOwner();
// shortcuts should not work in shortcut setup fields
if (focusOwner instanceof ShortcutTextField) {
return false;
}
if (focusOwner instanceof JTextComponent && ((JTextComponent) focusOwner).isEditable()) {
if (e.getKeyChar() != KeyEvent.CHAR_UNDEFINED && e.getKeyChar() != KeyEvent.VK_ESCAPE) {
MacUIUtil.hideCursor();
}
}
MenuSelectionManager menuSelectionManager = MenuSelectionManager.defaultManager();
MenuElement[] selectedPath = menuSelectionManager.getSelectedPath();
if (selectedPath.length > 0) {
if (!(selectedPath[0] instanceof ComboPopup)) {
// The following couple of lines of code is a PATCH!!!
// It is needed to ignore ENTER KEY_TYPED events which sometimes can reach editor when an
// action
// is invoked from main menu via Enter key.
setState(KeyState.STATE_PROCESSED);
setPressedWasProcessed(true);
return false;
}
}
// Keymap shortcuts (i.e. not local shortcuts) should work only in:
// - main frame
// - floating focusedWindow
// - when there's an editor in contexts
Window focusedWindow = focusManager.getFocusedWindow();
boolean isModalContext = focusedWindow != null && isModalContext(focusedWindow);
final DataManager dataManager = DataManager.getInstance();
if (dataManager == null) return false;
DataContext dataContext = dataManager.getDataContext();
myContext.setDataContext(dataContext);
myContext.setFocusOwner(focusOwner);
myContext.setModalContext(isModalContext);
myContext.setInputEvent(e);
try {
if (getState() == KeyState.STATE_INIT) {
return inInitState();
} else if (getState() == KeyState.STATE_PROCESSED) {
return inProcessedState();
} else if (getState() == KeyState.STATE_WAIT_FOR_SECOND_KEYSTROKE) {
return inWaitForSecondStrokeState();
} else if (getState() == KeyState.STATE_SECOND_STROKE_IN_PROGRESS) {
return inSecondStrokeInProgressState();
} else if (getState() == KeyState.STATE_KEY_GESTURE_PROCESSOR) {
return myKeyGestureProcessor.process();
} else {
throw new IllegalStateException("state = " + getState());
}
} finally {
myContext.clear();
}
}