/**
* Returns a <code>Popup</code> instance from the <code>PopupMenuUI</code> that has had <code>show
* </code> invoked on it. If the current <code>popup</code> is non-null, this will invoke <code>
* dispose</code> of it, and then <code>show</code> the new one.
*
* <p>This does NOT fire any events, it is up the caller to dispatch the necessary events.
*/
private Popup getPopup() {
Popup oldPopup = popup;
if (oldPopup != null) {
oldPopup.hide();
}
PopupFactory popupFactory = PopupFactory.getSharedInstance();
if (isLightWeightPopupEnabled()) {
popupFactory.setPopupType(PopupFactory.LIGHT_WEIGHT_POPUP);
} else {
popupFactory.setPopupType(PopupFactory.MEDIUM_WEIGHT_POPUP);
}
// adjust the location of the popup
Point p = adjustPopupLocationToFitScreen(desiredLocationX, desiredLocationY);
desiredLocationX = p.x;
desiredLocationY = p.y;
Popup newPopup = getUI().getPopup(this, desiredLocationX, desiredLocationY);
popupFactory.setPopupType(PopupFactory.LIGHT_WEIGHT_POPUP);
newPopup.show();
return newPopup;
}
/**
* 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 mouseReleased(MouseEvent e) {
if (e.isPopupTrigger()) {
Popup popup = new Popup();
popup.show(e.getComponent(), e.getX(), e.getY());
}
}