/** Notifies all views of a data reference change. */
public void init() {
final Data data = initHistory(gui.context);
if (data != null) {
// if a large database is opened, the user is asked if complex
/// visualizations should be closed first
final long size = data.meta.dbsize();
boolean open = false;
for (final View v : view) open |= v.visible() && v.db();
if (open
&& size > LARGEDB
&& BaseXDialog.confirm(gui, Util.info(H_LARGE_DB, Performance.format(size)))) {
for (final View v : view) if (v.visible() && v.db()) v.visible(false);
}
} else {
// database closed: close open dialogs
for (final Window w : gui.getOwnedWindows()) {
if (w.isVisible() && w instanceof BaseXDialog) ((BaseXDialog) w).cancel();
}
}
gui.context.focused = -1;
for (final View v : view) v.refreshInit();
gui.layoutViews();
gui.setTitle(data != null ? data.meta.name : null);
}
@Override
public void execute(final GUI gui) {
gui.gprop.invert(GUIProp.SHOWEXPLORE);
gui.layoutViews();
}