@Override
public void onConnectorHierarchyChange(ConnectorHierarchyChangeEvent event) {
ComponentConnector oldChild = null;
ComponentConnector newChild = getContent();
for (ComponentConnector c : event.getOldChildren()) {
if (!(c instanceof WindowConnector)) {
oldChild = c;
break;
}
}
if (oldChild != newChild) {
if (childStateChangeHandlerRegistration != null) {
childStateChangeHandlerRegistration.removeHandler();
childStateChangeHandlerRegistration = null;
}
if (newChild != null) {
getWidget().setWidget(newChild.getWidget());
childStateChangeHandlerRegistration =
newChild.addStateChangeHandler(childStateChangeHandler);
// Must handle new child here as state change events are already
// fired
onChildSizeChange();
} else {
getWidget().setWidget(null);
}
}
for (ComponentConnector c : getChildComponents()) {
if (c instanceof WindowConnector) {
WindowConnector wc = (WindowConnector) c;
wc.setWindowOrderAndPosition();
}
}
// Close removed sub windows
for (ComponentConnector c : event.getOldChildren()) {
if (c.getParent() != this && c instanceof WindowConnector) {
((WindowConnector) c).getWidget().hide();
}
}
}
@Override
public void onConnectorHierarchyChange(ConnectorHierarchyChangeEvent event) {
// super.onConnectorHierarchyChange(event);
// Remove old children
for (ComponentConnector child : event.getOldChildren()) {
if (child.getParent() != this) {
Widget widget = child.getWidget();
if (widget.isAttached()) {
getWidget().remove(widget);
}
}
}
// Add or move children
int index = 0;
for (ComponentConnector child : getChildComponents()) {
getWidget().addOrMove(child.getWidget(), index);
++index;
}
}