Function undoDelete

codebase/sources/dhtmlxscheduler.js:205–235

(scheduler2)

    });
  }
  function undoDelete(scheduler2) {
    const undoableDeletes = {};
    scheduler2.attachEvent("onConfirmedBeforeEventDelete", function(id) {
      undoableDeletes[id] = true;
      return true;
    });
    scheduler2.attachEvent("onEventDeleted", function(id, ev) {
      if (undoableDeletes[id]) {
        delete undoableDeletes[id];
      } else {
        return;
      }
      let deletedEvent = scheduler2.copy(ev);
      if (scheduler2.config.undo_deleted && !scheduler2.getState().new_event) {
        scheduler2.message({ text: `<div class="dhx_info_message">
                            <span class="undo_popup_text">Event deleted</span>
                            <button class="undo_button" data-deleted-event-id="${ev.id}">Undo</button>
                        </div>`, expire: 1e4, type: "popup_after_delete", callback: function(e) {
          let undoBtn = e.target.closest(`[data-deleted-event-id="${ev.id}"]`);
          if (undoBtn) {
            if (deletedEvent.rrule && deletedEvent.duration) {
              deletedEvent.end_date = new Date(deletedEvent.start_date.valueOf() + deletedEvent.duration * 1e3);
              scheduler2.addEvent(deletedEvent);
            }
            scheduler2.addEvent(deletedEvent);
            scheduler2.render();
          }
        } });
      }
    });
  }
  function limitPlugin(scheduler2) {
    scheduler2.config.mark_now = true;
    scheduler2.config.display_marked_timespans = true;