Cell Hover Summary Tooltip

This demo demonstrates how to surface detailed cell summaries through tooltips when hovering over schedule cells.

Using onCellHoverIn and onCellHoverOut events, each tooltip dynamically displays the total number of events, invalid and colors in the hovered cell.

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Demo

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Show a per-cell summary tooltip in the Scheduler — hover over any schedule cell to display event count, invalid slots, and color ranges.

Code

View code on GitHub 
mobiscroll.setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
});

var cellDate = document.getElementById('demo-cell-summary-date');
var cellEventNr = document.getElementById('demo-cell-summary-events');
var cellInvalidNr = document.getElementById('demo-cell-summary-invalid');
var cellColorNr = document.getElementById('demo-cell-summary-colors');

mobiscroll.eventcalendar('#demo-show-cell-summary-on-hover', {
  view: {
    scheduler: {
      type: 'week',
      startTime: '08:00',
      endTime: '18:00',
      timeCellStep: 30,
    },
  },
  data: [
    {
      start: '2026-10-20T08:00',
      end: '2026-10-20T11:00',
      title: 'Task 1',
    },
    {
      start: '2026-10-21T14:00',
      end: '2026-10-21T16:00',
      title: 'Task 2',
    },
    {
      start: '2026-10-22T15:00',
      end: '2026-10-22T17:00',
      title: 'Task 3',
    },
    {
      start: '2026-10-22T10:00',
      end: '2026-10-22T12:00',
      title: 'Task 4',
    },
    {
      start: '2026-10-23T08:00',
      end: '2026-10-23T11:00',
      title: 'Task 5',
    },
    {
      start: '2026-10-23T09:00',
      end: '2026-10-23T12:00',
      title: 'Task 6',
    },
    {
      start: '2026-10-23T10:00',
      end: '2026-10-23T12:00',
      title: 'Task 7',
    },
    {
      start: '2026-10-23T10:00',
      end: '2026-10-23T13:00',
      title: 'Task 8',
    },
    {
      start: '2026-10-23T10:00',
      end: '2026-10-23T14:00',
      title: 'Task 9',
    },
    {
      start: '2026-10-23T16:00',
      end: '2026-10-23T18:00',
      title: 'Task 10',
    },
    {
      start: '2026-10-24T13:00',
      end: '2026-10-24T17:00',
      title: 'Task 11',
    },
    {
      start: '2026-10-24T18:00',
      end: '2026-10-24T20:00',
      title: 'Task 12',
    },
    {
      start: '2026-10-25T08:00',
      end: '2026-10-25T12:00',
      title: 'Task 13',
    },
    {
      start: '2026-10-25T15:00',
      end: '2026-10-25T18:00',
      title: 'Task 14',
    },
    {
      start: '2026-10-26T08:00',
      end: '2026-10-26T11:00',
      title: 'Task 15',
    },
    {
      start: '2026-10-26T15:00',
      end: '2026-10-26T17:00',
      title: 'Task 16',
    },
    {
      start: '2026-10-27T09:00',
      end: '2026-10-27T12:00',
      title: 'Task 17',
    },
  ],
  invalid: [
    {
      start: '2026-10-21T12:00',
      end: '2026-10-21T13:00',
    },
    {
      start: '2026-10-22T08:00',
      end: '2026-10-22T10:00',
    },
    {
      start: '2026-10-23T13:00',
      end: '2026-10-23T15:00',
    },
    {
      start: '2026-10-24T15:00',
      end: '2026-10-24T17:00',
    },
    {
      start: '10:00',
      end: '11:00',
      recurring: {
        repeat: 'weekly',
        weekDays: 'TU,TH,SA,SU',
      },
    },
  ],
  colors: [
    {
      start: '2026-10-22T12:00',
      end: '2026-10-22T14:00',
      cssClass: 'mds-cell-summary-color',
    },
    {
      start: '2026-10-23T10:00',
      end: '2026-10-23T12:00',
      cssClass: 'mds-cell-summary-color',
    },
    {
      start: '2026-10-24T08:00',
      end: '2026-10-24T11:00',
      cssClass: 'mds-cell-summary-color',
    },
    {
      start: '2026-10-25T14:00',
      end: '2026-10-25T17:00',
      cssClass: 'mds-cell-summary-color',
    },
    {
      start: '08:00',
      end: '09:00',
      cssClass: 'mds-cell-summary-color',
      recurring: {
        repeat: 'weekly',
        weekDays: 'MO,FR',
      },
    },
    {
      start: '14:00',
      end: '16:00',
      cssClass: 'mds-cell-summary-color',
      recurring: {
        repeat: 'weekly',
        weekDays: 'TU,TH',
      },
    },
    {
      start: '10:00',
      end: '12:00',
      recurring: {
        repeat: 'weekly',
        weekDays: 'FR',
      },
      cssClass: 'mds-cell-summary-color',
    },
    {
      start: '16:00',
      end: '17:00',
      recurring: {
        repeat: 'weekly',
        weekDays: 'SU,SA',
      },
      cssClass: 'mds-cell-summary-color',
    },
  ],
  onCellHoverIn: function (args) {
    var endDate = new Date(args.date);
    endDate.setHours(endDate.getHours() + 1);
    var date = mobiscroll.formatDate('DDDD MMM D, YYYY, HA - ', args.date);
    var time = mobiscroll.formatDate('HA', endDate);

    cellDate.textContent = date + time;
    cellEventNr.textContent = args.events ? args.events.length : 0;
    cellInvalidNr.textContent = args.invalids ? args.invalids.length : 0;
    cellColorNr.textContent = args.colors ? args.colors.length : 0;

    tooltip.setOptions({
      anchor: args.target,
    });

    tooltip.open();
  },
  onCellHoverOut: function () {
    tooltip.close();
  },
});

var tooltip = mobiscroll.popup('#demo-cell-summary-popup', {
  display: 'anchored',
  showOverlay: false,
  touchUi: false,
  scrollLock: false,
});

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