myStructure = new LeiningenProjectStructure(myProject, myProjectsManager, myTree);
JPanel panel = new LeiningenProjectNavigatorPanel(myProject, myTree);
final ToolWindowManagerEx manager = ToolWindowManagerEx.getInstanceEx(myProject);
myToolWindow = manager.registerToolWindow(TOOL_WINDOW_ID, panel, ToolWindowAnchor.RIGHT, myProject, true);
myToolWindow.setIcon(LeiningenIcons.PROJECT_ICON);
final ToolWindowManagerAdapter listener = new ToolWindowManagerAdapter() {
boolean wasVisible = false;
@Override
public void stateChanged() {
if (myToolWindow.isDisposed()) return;