FullCalendar limit amount of selectable time in scheduler

问题

In my scheduler view, I'm trying to limit the amount of time a user can select to a maximum of 4 hours. I thought that selectConstraint would be the ticket, but don't see a way to apply a max selectable duration.

I was hoping for something along the lines of selectConstraint: {duration: '04:00'} or perhaps duration: '240' (in minutes).

Or... maybe limit the number of selectable slots?? I have it broken up into 15 minute increments, so is there a way to limit the select to a maximum of 16 slots?

I've been scouring the FullCalendar Docs (which is I think is rather poor IMO...), but I can't seem to find the key ingredient.

Anyone?

$('#schedulerCalendar').fullCalendar({
     defaultView: 'agendaDay',
     defaultDate: moment(systemDate),
     eventClick: $scope.eventClick,
     editable: true,
     eventOverlap: false,
     selectable: true,
     selectHelper: true,
     select: $scope.dayClick,
     slotDuration : '00:15:00',
     slotEventOverlap: false,
     allDaySlot: false,

     // Display only business hours (8am to 5pm)
     minTime: "08:00",
     maxTime: "17:00",

     businessHours: {
         dow: [ 1, 2, 3, 4, 5], // Monday - Thursday
         start: '08:00', // start time (8am)
         end: '17:00', // end time (5pm)
     },

    hiddenDays: [ 0, 6 ],  // Hide Sundays and Saturdays

    events: function (start, end, timezone, callback) {
        callback($scope.eventSources);
    },
});

回答1:

You can use fullCalendar's selectAllow and moment duration asHours functions:

$('#schedulerCalendar').fullCalendar({  
    //....
    selectAllow: function(selectInfo) { 
         var duration = moment.duration(selectInfo.end.diff(selectInfo.start));
         return duration.asHours() <= 4;
    },
    //...
});

来源：https://stackoverflow.com/questions/44552365/fullcalendar-limit-amount-of-selectable-time-in-scheduler