Vue Timeline Dual Synchronized Flight Scheduling

For creating complex dashboards like for managing jet bookings sometimes two separate timeline instances are necessary.

Sticking two instances together with synchronized horizontal scrolling allows for a setup where the top timeline is a list of bookings with one flight per rows and the bottom timeline holds available aircrafts.

Only moving events from the top timeline is allowed and events are fixed in time, meaning the start and end cannot be changed. Things like eventOverlap is set to false to avoid overlapping events.

Get started with this example

Demo

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Use synchronized Timeline views to build a flight scheduling UI — drag flights to assign them to aircraft, with fixed event times and conflict detection.

Code

View code on GitHub 
<script setup>
import { MbscEventcalendar, MbscToast, setOptions  } from '@mobiscroll/vue'
import { ref } from 'vue'

setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
})

const bookings = [
  {
    start: '2026-11-09T06:00',
    end: '2026-11-09T10:00',
    title: 'Budapest - Ljubljana',
    resource: 1
  },
  {
    start: '2026-11-09T15:00',
    end: '2026-11-09T18:00',
    title: 'Ljubljana - Berlin',
    resource: 1
  },
  {
    start: '2026-11-09T04:00',
    end: '2026-11-09T12:00',
    title: 'Los Angeles - Dublin',
    resource: 2
  },
  {
    start: '2026-11-09T18:00',
    end: '2026-11-09T23:00',
    title: 'Dublin - Bucharest',
    resource: 2
  },
  {
    start: '2026-11-09T06:00',
    end: '2026-11-09T14:00',
    title: 'Chicago - Amsterdam',
    resource: 3
  },
  {
    start: '2026-11-09T17:00',
    end: '2026-11-09T22:00',
    title: 'Amsterdam - Cairo',
    resource: 3
  },
  {
    start: '2026-11-09T10:00',
    end: '2026-11-09T14:00',
    title: 'Hong Kong - Sydney',
    resource: 4
  },
  {
    start: '2026-11-09T15:00',
    end: '2026-11-09T21:00',
    title: 'Sydney - Tokyo',
    resource: 4
  },
  {
    start: '2026-11-09T04:00',
    end: '2026-11-09T12:00',
    title: 'Paris - Washington, D.C.',
    resource: 5
  },
  {
    start: '2026-11-09T12:00',
    end: '2026-11-09T18:00',
    title: 'Washington, D.C. - Los-Angeles',
    resource: 5
  },
  {
    start: '2026-11-09T03:00',
    end: '2026-11-09T11:00',
    title: 'Los Angeles - Dublin',
    resource: 6
  },
  {
    start: '2026-11-09T13:00',
    end: '2026-11-09T18:00',
    title: 'Dublin - Rome',
    resource: 6
  },
  {
    start: '2026-11-09T05:00',
    end: '2026-11-09T12:00',
    title: 'Barcelona - Dubai',
    resource: 7
  },
  {
    start: '2026-11-09T13:00',
    end: '2026-11-09T20:00',
    title: 'Dubai - Tokyo',
    resource: 7
  },
  {
    start: '2026-11-09T03:30',
    end: '2026-11-09T13:00',
    title: 'Rome - Toronto',
    resource: 8
  },
  {
    start: '2026-11-09T16:00',
    end: '2026-11-09T19:00',
    title: 'Toronto - New-York',
    resource: 8
  },
  {
    start: '2026-11-09T03:00',
    end: '2026-11-09T14:00',
    title: 'Vienna - Shanghai',
    resource: 9
  },
  {
    start: '2026-11-09T16:00',
    end: '2026-11-09T23:30',
    title: 'Shanghai - Moscow',
    resource: 9
  },
  {
    start: '2026-11-09T08:00',
    end: '2026-11-09T13:00',
    title: 'London - Cairo',
    resource: 10
  },
  {
    start: '2026-11-09T15:30',
    end: '2026-11-09T19:30',
    title: 'Cairo - Sofia',
    resource: 10
  },
  {
    start: '2026-11-09T02:00',
    end: '2026-11-09T13:00',
    title: 'Istanbul - New York',
    resource: 11
  },
  {
    start: '2026-11-09T16:00',
    end: '2026-11-09T20:00',
    title: 'New York - Montreal',
    resource: 11
  },
  {
    start: '2026-11-09T05:00',
    end: '2026-11-09T11:00',
    title: 'Seattle - Miami',
    resource: 12
  },
  {
    start: '2026-11-09T12:00',
    end: '2026-11-09T21:00',
    title: 'Miami - Buenos-Aires',
    resource: 12
  },
  {
    start: '2026-11-10T04:00',
    end: '2026-11-10T16:00',
    title: 'Hong Kong - Sydney',
    resource: 1
  },
  {
    start: '2026-11-10T06:00',
    end: '2026-11-10T10:00',
    title: 'Los Angeles - Dublin',
    resource: 2
  },
  {
    start: '2026-11-10T03:00',
    end: '2026-11-10T11:00',
    title: 'Budapest - Ljubljana',
    resource: 4
  },
  {
    start: '2026-11-10T05:00',
    end: '2026-11-10T12:00',
    title: 'Los Angeles - Dublin',
    resource: 6
  },
  {
    start: '2026-11-10T13:00',
    end: '2026-11-10T23:00',
    title: 'London - Cairo',
    resource: 7
  },
  {
    start: '2026-11-10T03:00',
    end: '2026-11-10T14:00',
    title: 'Miami - Buenos-Aires',
    resource: 9
  },
  {
    start: '2026-11-10T06:00',
    end: '2026-11-10T12:00',
    title: 'Barcelona - Dubai',
    resource: 10
  },
  {
    start: '2026-11-10T08:00',
    end: '2026-11-10T22:00',
    title: 'Istanbul - New York',
    resource: 11
  },
  {
    start: '2026-11-10T05:00',
    end: '2026-11-10T11:00',
    title: 'Vienna - Shanghai',
    resource: 12
  }
]

const jets = [
  {
    id: 'Op 1',
    name: 'Prestige Air',
    eventCreation: false,
    children: [
      {
        id: 1,
        code: '#AF 7703',
        crew: 52,
        name: 'Red Bolt',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-1.jpg'
      },
      {
        id: 2,
        code: '#BQ 4718',
        crew: 47,
        name: 'Skyroar',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-2.jpg'
      },
      {
        id: 3,
        code: '#ZM 8430',
        crew: 24,
        name: 'Agile Raven',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-3.jpg'
      }
    ]
  },
  {
    id: 'Op 2',
    name: 'Elite Wings',
    eventCreation: false,
    children: [
      {
        id: 4,
        code: '#XG 5500',
        crew: 43,
        name: 'Monsterbolt',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-4.jpg'
      },
      {
        id: 5,
        code: '#FL 2531',
        crew: 22,
        name: 'Airrise',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-5.jpg'
      },
      {
        id: 6,
        code: '#PA 6487',
        crew: 84,
        name: 'Starblast',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-6.jpg'
      },
      {
        id: 7,
        code: '#PP 9812',
        crew: 28,
        name: 'Ebonfire',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-7.jpg'
      }
    ]
  },
  {
    id: 'Op 3',
    name: 'Luxury Skies',
    eventCreation: false,
    children: [
      {
        id: 8,
        code: '#DN 3191',
        crew: 36,
        name: 'Dark Bee',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-8.jpg'
      },
      {
        id: 9,
        code: '#ZW 2328',
        crew: 76,
        name: 'Keen Sparrow',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-9.jpg'
      },
      {
        id: 10,
        code: '#RX 9898',
        crew: 37,
        name: 'Jagged Bolt',
        color: '#1dab2f',
        img: 'https://img.mobiscroll.com/demos/jet-10.jpg'
      }
    ]
  }
]

const reservations = ref([
  {
    id: 1,
    name: 'Alison Reyes'
  },
  {
    id: 2,
    name: 'Shauna Perry'
  },
  {
    id: 3,
    name: 'Jan Whitney'
  },
  {
    id: 4,
    name: 'Freddie Durham'
  },
  {
    id: 5,
    name: 'William Dillon'
  },
  {
    id: 6,
    name: 'Tyrell Edwards'
  },
  {
    id: 7,
    name: 'Caitlyn Riddle'
  },
  {
    id: 8,
    name: 'Liam Mays'
  },
  {
    id: 9,
    name: 'Frank Medina'
  },
  {
    id: 10,
    name: 'Calvin Larsen'
  },
  {
    id: 11,
    name: 'Heather Walsh'
  },
  {
    id: 12,
    name: 'Conner Paul'
  }
])

const flights = ref([
  {
    start: '2026-11-09T10:00',
    end: '2026-11-09T17:00',
    title: 'Barcelona - Dubai',
    resource: 4
  },
  {
    start: '2026-11-09T07:30',
    end: '2026-11-09T16:00',
    title: 'Toronto - Rome',
    resource: 8
  },
  {
    start: '2026-11-09T04:00',
    end: '2026-11-09T08:00',
    title: 'Ljubljana - Budapest',
    resource: 1
  },
  {
    start: '2026-11-09T02:00',
    end: '2026-11-09T10:00',
    title: 'Paris - Washington, D.C.',
    resource: 2
  },
  {
    start: '2026-11-09T12:00',
    end: '2026-11-09T23:00',
    title: 'New York - Istanbul',
    resource: 7
  },
  {
    start: '2026-11-09T15:00',
    end: '2026-11-09T23:00',
    title: 'Moscow - Tokyo',
    resource: 3
  }
])

const myView = {
  timeline: {
    type: 'day',
    size: 1
  }
}

const invalid = ref([])
const firstCalCont = ref(null)
const secondCalCont = ref(null)
const skipScroll1 = ref(false)
const skipScroll2 = ref(false)
const mySelectedDate = ref(new Date())
const toastMessage = ref('')
const isToastOpen = ref(false)

function handleScroll1(ev) {
  if (secondCalCont.value && !skipScroll2.value) {
    skipScroll1.value = true
    secondCalCont.value.scrollLeft = ev.target.scrollLeft
  }
  skipScroll1.value = false
}

function handleScroll2(ev) {
  if (firstCalCont.value && !skipScroll1.value) {
    skipScroll2.value = true
    firstCalCont.value.scrollLeft = ev.target.scrollLeft
  }
  skipScroll2.value = false
}

function handleFirstScroll() {
  if (!firstCalCont.value) {
    firstCalCont.value = document.querySelector(
      '.md-drag-drop-bw-inst-first .mbsc-timeline-grid-scroll'
    )
    firstCalCont.value.addEventListener('scroll', handleScroll1)
  }
}

function handleSecondScroll() {
  if (!secondCalCont.value) {
    secondCalCont.value = document.querySelector(
      '.md-drag-drop-bw-inst-second .mbsc-timeline-grid-scroll'
    )
    secondCalCont.value.addEventListener('scroll', handleScroll2)
  }
}

function detachFirstScroll() {
  if (firstCalCont.value) {
    firstCalCont.value.removeEventListener('scroll', handleScroll1)
  }
}

function detachSecondScroll() {
  if (secondCalCont.value) {
    secondCalCont.value.removeEventListener('scroll', handleScroll2)
  }
}

function handlePageLoading(args) {
  if (secondCalCont.value) {
    setTimeout(() => {
      mySelectedDate.value = args.firstDay
    }, 100)
  }
}

function handleSelectedDateChange(args) {
  mySelectedDate.value = args.date
}

function handleEventCreated(args) {
  flights.value = [...flights.value, args.event]
  toastMessage.value = 'Flight scheduled'
  isToastOpen.value = true
}

function handleEventDeleted(args) {
  flights.value = flights.value.filter((flight) => flight.id !== args.event.id)
}

function handleEventCreateUpdateFailed() {
  toastMessage.value = "There's already a flight on this date"
}

function handleEventDragStart(args) {
  const unavailable = {}
  const inv = {
    cssClass: 'md-drag-drop-invalid',
    recurring: { repeat: 'daily' },
    resource: []
  }
  // Filter unavailable jets
  flights.value.forEach((flight) => {
    if (
      flight.id !== args.event.id &&
      new Date(flight.start) < new Date(args.event.end) &&
      new Date(flight.end) > new Date(args.event.start)
    ) {
      unavailable[flight.resource] = true
    }
  })
  flights.value.forEach((flight) => {
    if (unavailable[flight.resource]) {
      flight.cssClass = 'md-drag-drop-faded'
    }
  })
  jets.forEach((group) => {
    group.children.forEach((jet) => {
      if (unavailable[jet.id]) {
        inv.resource.push(jet.id)
      }
    })
  })
  invalid.value = [inv]
}

function handleEventDragEnd() {
  flights.value.forEach((flight) => {
    delete flight.cssClass
  })
  invalid.value = []
}

function handleToastClose() {
  isToastOpen.value = false
}
</script>

<template>
  <div class="mbsc-flex-col md-drag-drop-bw-inst-cont">
    <MbscEventcalendar
      cssClass="md-drag-drop-bw-inst-first"
      :data="bookings"
      :resources="reservations"
      :view="myView"
      :dragToMove="false"
      :dragToCreate="true"
      :dragToResize="false"
      :eventDelete="true"
      :externalDrag="true"
      @page-loading="handlePageLoading"
      @page-loaded="handleFirstScroll"
      @destroy="detachFirstScroll"
    />
    <MbscEventcalendar
      cssClass="md-drag-drop-bw-inst-second"
      :invalid="invalid"
      :data="flights"
      :resources="jets"
      :view="myView"
      :showControls="false"
      :dragToCreate="false"
      :dragToMove="true"
      :dragToResize="false"
      :dragInTime="false"
      :externalDrop="true"
      :eventDelete="true"
      :eventOverlap="false"
      :selectedDate="mySelectedDate"
      @selected-date-change="handleSelectedDateChange"
      @event-created="handleEventCreated"
      @event-create-failed="handleEventCreateUpdateFailed"
      @event-deleted="handleEventDeleted"
      @event-update-failed="handleEventCreateUpdateFailed"
      @event-drag-start="handleEventDragStart"
      @event-drag-end="handleEventDragEnd"
      @page-loaded="handleSecondScroll"
      @destroy="detachSecondScroll"
    >
      <template #resource="resource">
        <div
          v-if="!resource.children"
          class="mbsc-flex mbsc-align-items-center mbsc-justify-content-start"
        >
          <img class="md-drag-drop-bw-inst-avatar" :src="resource.img" />
          <div class="md-drag-drop-bw-inst-details mbsc-flex-col mbsc-flex-1-0">
            <div>{{ resource.name }}</div>
            <div class="md-aircraft-code mbsc-flex mbsc-justify-content-between">
              <div>{{ resource.code }}</div>
              <div>👨🏾‍✈ {{ resource.crew }}</div>
            </div>
          </div>
        </div>
        <div v-else>{{ resource.name }}</div>
      </template>
    </MbscEventcalendar>
    <MbscToast
      display="center"
      :message="toastMessage"
      :isOpen="isToastOpen"
      @close="handleToastClose"
    />
  </div>
</template>

<style>
.md-drag-drop-bw-inst-cont .mbsc-eventcalendar {
  height: 500px;
}

.md-drag-drop-bw-inst-cont .mbsc-timeline-parent {
  height: 32px;
}

.md-drag-drop-bw-inst-cont .mbsc-timeline-resource {
  padding-left: 5px !important;
}

.md-drag-drop-bw-inst-cont .mbsc-timeline-row-gutter {
  height: 6px;
}

.md-drag-drop-bw-inst-cont .mbsc-timeline-resource-depth-step {
  width: 0;
}

.md-drag-drop-bw-inst-second .mbsc-timeline-header,
.md-drag-drop-bw-inst-second .mbsc-timeline-header-sticky {
  display: none;
}

.md-aircraft-code {
  color: #939995;
}

.md-drag-drop-bw-inst-cont {
  min-height: 500px;
  height: 100%;
}

.md-drag-drop-bw-inst-first {
  border-bottom: 5px solid #ccc;
}

.md-drag-drop-bw-inst-avatar {
  max-height: 55px;
  max-width: 55px;
  border-bottom-right-radius: 4px;
  border-top-right-radius: 4px;
  border-bottom-left-radius: 4px;
  border-top-left-radius: 4px;
}

.md-drag-drop-bw-inst-details {
  margin-left: 16px;
  font-size: 12px;
}

.md-drag-drop-bw-inst-title {
  font-size: 12px;
  margin-top: 5px;
}

.md-drag-drop-faded {
  opacity: 0.3;
}

.md-drag-drop-invalid.mbsc-schedule-invalid {
  background: repeating-linear-gradient(-45deg, #f3f3f3, #f3f3f3 11px, #e5e5e5 11px, #e5e5e5 22px);
}
</style>

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