void () { FileEditor editor = myFileEditor; TreeState state = editor == null ? null : editor.getUserData(STRUCTURE_VIEW_STATE_KEY); if (state == null) { if (!Boolean.TRUE.equals(ComponentUtil.getClientProperty(myTree, STRUCTURE_VIEW_STATE_RESTORED_KEY))) { TreeUtil.expand(getTree(), getMinimumExpandDepth(myTreeModel)); } } else { ComponentUtil.putClientProperty(myTree, STRUCTURE_VIEW_STATE_RESTORED_KEY, true); state.applyTo(myTree); editor.putUserData(STRUCTURE_VIEW_STATE_KEY, null); } }