add_expand_contract_buttons : function()

in js/drill.js [179:186]


  add_expand_contract_buttons : function() {
    var expand_btn = '<span class="expand show"><i class="fa fa-plus"></i></span>';
    var contract_btn = '<span class="contract"><i class="fa fa-minus"></i></span>';
    $('li.toctree-l2').filter(function(){ 
      return $(this).next('ul').length > 0;
    })
    .prepend(expand_btn + contract_btn);
  },