/**
* Sets the visibility of the popup menu.
*
* @param b true to make the popup visible, or false to hide it
* @beaninfo bound: true description: Makes the popup visible
*/
public void setVisible(boolean b) {
if (DEBUG) {
System.out.println("JPopupMenu.setVisible " + b);
}
// Is it a no-op?
if (b == isVisible()) return;
// if closing, first close all Submenus
if (b == false) {
// 4234793: This is a workaround because JPopupMenu.firePopupMenuCanceled is
// a protected method and cannot be called from BasicPopupMenuUI directly
// The real solution could be to make
// firePopupMenuCanceled public and call it directly.
Boolean doCanceled = (Boolean) getClientProperty("JPopupMenu.firePopupMenuCanceled");
if (doCanceled != null && doCanceled == Boolean.TRUE) {
putClientProperty("JPopupMenu.firePopupMenuCanceled", Boolean.FALSE);
firePopupMenuCanceled();
}
getSelectionModel().clearSelection();
} else {
// This is a popup menu with MenuElement children,
// set selection path before popping up!
if (isPopupMenu()) {
MenuElement me[] = new MenuElement[1];
me[0] = this;
MenuSelectionManager.defaultManager().setSelectedPath(me);
}
}
if (b) {
firePopupMenuWillBecomeVisible();
popup = getPopup();
firePropertyChange("visible", Boolean.FALSE, Boolean.TRUE);
} else if (popup != null) {
firePopupMenuWillBecomeInvisible();
popup.hide();
popup = null;
firePropertyChange("visible", Boolean.TRUE, Boolean.FALSE);
// 4694797: When popup menu is made invisible, selected path
// should be cleared
if (isPopupMenu()) {
MenuSelectionManager.defaultManager().clearSelectedPath();
}
}
}
public void processMouseEvent(
JMenuItem item, MouseEvent e, MenuElement path[], MenuSelectionManager manager) {
Point p = e.getPoint();
if (p.x >= 0 && p.x < item.getWidth() && p.y >= 0 && p.y < item.getHeight()) {
if (e.getID() == MouseEvent.MOUSE_RELEASED) {
manager.clearSelectedPath();
item.doClick(0);
item.setArmed(false);
} else manager.setSelectedPath(path);
} else if (item.getModel().isArmed()) {
MenuElement newPath[] = new MenuElement[path.length - 1];
int i, c;
for (i = 0, c = path.length - 1; i < c; i++) newPath[i] = path[i];
manager.setSelectedPath(newPath);
}
}
/**
* Processes key stroke events such as mnemonics and accelerators.
*
* @param evt the key event to be processed
*/
protected void processKeyEvent(KeyEvent evt) {
MenuSelectionManager.defaultManager().processKeyEvent(evt);
if (evt.isConsumed()) {
return;
}
super.processKeyEvent(evt);
}
public void propertyChange(final PropertyChangeEvent e) {
if (myAlarm.getActiveRequestCount() == 0) {
myInitialFocusedWindow = (Window) e.getOldValue();
final MenuElement[] selectedPath = MenuSelectionManager.defaultManager().getSelectedPath();
if (selectedPath.length == 0) { // there is no visible popup
return;
}
Component firstComponent = null;
for (final MenuElement menuElement : selectedPath) {
final Component component = menuElement.getComponent();
if (component instanceof JMenuBar) {
firstComponent = component;
break;
} else if (component instanceof JPopupMenu) {
firstComponent = ((JPopupMenu) component).getInvoker();
break;
}
}
if (firstComponent == null) {
return;
}
final Window window = SwingUtilities.getWindowAncestor(firstComponent);
if (window != myInitialFocusedWindow) { // focused window doesn't have popup
return;
}
}
myLastFocusedWindow = (Window) e.getNewValue();
myAlarm.cancelAllRequests();
myAlarm.addRequest(myClearSelectedPathRunnable, 150);
}
/** Code completion. */
private void complete() {
if (selected()) return;
// find first character
final int caret = editor.pos(), startPos = editor.completionStart();
final String prefix = string(substring(editor.text(), startPos, caret));
if (prefix.isEmpty()) return;
// find insertion candidates
final TreeMap<String, String> tmp = new TreeMap<>();
for (final Entry<String, String> entry : REPLACE.entrySet()) {
final String key = entry.getKey();
if (key.startsWith(prefix)) tmp.put(key, entry.getValue());
}
if (tmp.size() == 1) {
// insert single candidate
complete(tmp.values().iterator().next(), startPos);
} else if (!tmp.isEmpty()) {
// show popup menu
final JPopupMenu pm = new JPopupMenu();
final ActionListener al =
new ActionListener() {
@Override
public void actionPerformed(final ActionEvent ae) {
complete(ae.getActionCommand().replaceAll("^.*?\\] ", ""), startPos);
}
};
for (final Entry<String, String> entry : tmp.entrySet()) {
final JMenuItem mi = new JMenuItem("[" + entry.getKey() + "] " + entry.getValue());
pm.add(mi);
mi.addActionListener(al);
}
pm.addSeparator();
final JMenuItem mi = new JMenuItem(Text.INPUT + Text.COLS + prefix);
mi.setEnabled(false);
pm.add(mi);
final int[] cursor = rend.cursor();
pm.show(this, cursor[0], cursor[1]);
// highlight first entry
final MenuElement[] me = {pm, (JMenuItem) pm.getComponent(0)};
MenuSelectionManager.defaultManager().setSelectedPath(me);
}
}
public void mouseReleased(MouseEvent e) {
setColor(col);
MenuSelectionManager.defaultManager().clearSelectedPath();
doSelection();
}
