Function trap_modal_focus

codebase/sources/dhtmlxscheduler.es.js:10779–10815

(scheduler2)

  } };
}
function trap_modal_focus(scheduler2) {
  (function() {
    scheduler2.$keyboardNavigation.getFocusableNodes = scheduler2._getFocusableNodes;
    scheduler2.$keyboardNavigation.trapFocus = function trapFocus(root, e) {
      if (e.keyCode != 9)
        return false;
      var focusable = scheduler2.$keyboardNavigation.getFocusableNodes(root);
      var currentFocus = document.activeElement;
      var currentIndex = -1;
      for (var i = 0; i < focusable.length; i++) {
        if (focusable[i] == currentFocus) {
          currentIndex = i;
          break;
        }
      }
      var nextIndex, nextItem;
      if (e.shiftKey) {
        nextIndex = currentIndex <= 0 ? focusable.length - 1 : currentIndex - 1;
        nextItem = focusable[nextIndex];
        if (nextItem) {
          nextItem.focus();
          e.preventDefault();
          return true;
        }
      } else {
        nextIndex = currentIndex >= focusable.length - 1 ? 0 : currentIndex + 1;
        nextItem = focusable[nextIndex];
        if (nextItem) {
          nextItem.focus();
          e.preventDefault();
          return true;
        }
      }
      return false;
    };
  })();
}
function marker(scheduler2) {
  scheduler2.$keyboardNavigation.marker = { clear: function() {
    var divs = scheduler2.$container.querySelectorAll(".dhx_focus_slot");