/**
* Sets the active item. The component must be of type <code>Item</code> to be activated. All
* other types are ignored.
*
* @param c the component to set active
* @param autoExpand true to auto expand the item
*/
public void setActiveItem(Component c, boolean autoExpand) {
if (c == null) {
deactiveActiveItem();
return;
}
if (c instanceof Item) {
Item item = (Item) c;
if (item != activeItem) {
deactiveActiveItem();
this.activeItem = item;
item.activate(autoExpand);
item.el().scrollIntoView(ul.dom, false);
focus();
if (GXT.isFocusManagerEnabled()) {
FocusFrame.get().frame(item);
Accessibility.setState(getElement(), "aria-activedescendant", item.getId());
}
} else if (autoExpand) {
item.expandMenu(autoExpand);
}
}
}
protected void onMouseOut(ComponentEvent ce) {
EventTarget to = ce.getEvent().getRelatedEventTarget();
if (activeItem != null
&& (to == null
|| (Element.is(to)
&& !DOM.isOrHasChild(activeItem.getElement(), (Element) Element.as(to))))
&& activeItem.shouldDeactivate(ce)) {
deactiveActiveItem();
}
}
/**
* Removes a item from the menu.
*
* @param item the menu to remove
*/
@Override
public boolean remove(Component item) {
if (activeItem == item) {
deactiveActiveItem();
}
boolean success = super.remove(item);
if (success && item instanceof Item) {
((Item) item).parentMenu = null;
}
return success;
}
@Override
protected void onHide() {
super.onHide();
deactiveActiveItem();
}
