Angular 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

import { CommonModule } from '@angular/common';
import { Component } from '@angular/core';
import {
  MbscCalendarColor,
  MbscCalendarEvent,
  MbscEventcalendarOptions,
  MbscModule,
  MbscResource,
  Notifications,
  setOptions ,
} from '@mobiscroll/angular';

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

@Component({
  selector: 'app-root', 
  templateUrl: './app.component.html',
  providers: [Notifications],
  standalone: true,
  imports: [CommonModule, MbscModule],
})
export class AppComponent {
  constructor(private notify: Notifications) {}

  bookings: MbscCalendarEvent[] = [
    {
      start: '2026-11-06T06:00',
      end: '2026-11-06T10:00',
      title: 'Budapest - Ljubljana',
      resource: 1,
    },
    {
      start: '2026-11-06T15:00',
      end: '2026-11-06T18:00',
      title: 'Ljubljana - Berlin',
      resource: 1,
    },
    {
      start: '2026-11-06T04:00',
      end: '2026-11-06T12:00',
      title: 'Los Angeles - Dublin',
      resource: 2,
    },
    {
      start: '2026-11-06T18:00',
      end: '2026-11-06T23:00',
      title: 'Dublin - Bucharest',
      resource: 2,
    },
    {
      start: '2026-11-06T06:00',
      end: '2026-11-06T14:00',
      title: 'Chicago - Amsterdam',
      resource: 3,
    },
    {
      start: '2026-11-06T17:00',
      end: '2026-11-06T22:00',
      title: 'Amsterdam - Cairo',
      resource: 3,
    },
    {
      start: '2026-11-06T10:00',
      end: '2026-11-06T14:00',
      title: 'Hong Kong - Sydney',
      resource: 4,
    },
    {
      start: '2026-11-06T15:00',
      end: '2026-11-06T21:00',
      title: 'Sydney - Tokyo',
      resource: 4,
    },
    {
      start: '2026-11-06T04:00',
      end: '2026-11-06T12:00',
      title: 'Paris - Washington, D.C.',
      resource: 5,
    },
    {
      start: '2026-11-06T12:00',
      end: '2026-11-06T18:00',
      title: 'Washington, D.C. - Los-Angeles',
      resource: 5,
    },
    {
      start: '2026-11-06T03:00',
      end: '2026-11-06T11:00',
      title: 'Los Angeles - Dublin',
      resource: 6,
    },
    {
      start: '2026-11-06T13:00',
      end: '2026-11-06T18:00',
      title: 'Dublin - Rome',
      resource: 6,
    },
    {
      start: '2026-11-06T05:00',
      end: '2026-11-06T12:00',
      title: 'Barcelona - Dubai',
      resource: 7,
    },
    {
      start: '2026-11-06T13:00',
      end: '2026-11-06T20:00',
      title: 'Dubai - Tokyo',
      resource: 7,
    },
    {
      start: '2026-11-06T03:30',
      end: '2026-11-06T13:00',
      title: 'Rome - Toronto',
      resource: 8,
    },
    {
      start: '2026-11-06T16:00',
      end: '2026-11-06T19:00',
      title: 'Toronto - New-York',
      resource: 8,
    },
    {
      start: '2026-11-06T03:00',
      end: '2026-11-06T14:00',
      title: 'Vienna - Shanghai',
      resource: 9,
    },
    {
      start: '2026-11-06T16:00',
      end: '2026-11-06T23:30',
      title: 'Shanghai - Moscow',
      resource: 9,
    },
    {
      start: '2026-11-06T08:00',
      end: '2026-11-06T13:00',
      title: 'London - Cairo',
      resource: 10,
    },
    {
      start: '2026-11-06T15:30',
      end: '2026-11-06T19:30',
      title: 'Cairo - Sofia',
      resource: 10,
    },
    {
      start: '2026-11-06T02:00',
      end: '2026-11-06T13:00',
      title: 'Istanbul - New York',
      resource: 11,
    },
    {
      start: '2026-11-06T16:00',
      end: '2026-11-06T20:00',
      title: 'New York - Montreal',
      resource: 11,
    },
    {
      start: '2026-11-06T05:00',
      end: '2026-11-06T11:00',
      title: 'Seattle - Miami',
      resource: 12,
    },
    {
      start: '2026-11-06T12:00',
      end: '2026-11-06T21:00',
      title: 'Miami - Buenos-Aires',
      resource: 12,
    },
    {
      start: '2026-11-07T04:00',
      end: '2026-11-07T16:00',
      title: 'Hong Kong - Sydney',
      resource: 1,
    },
    {
      start: '2026-11-07T06:00',
      end: '2026-11-07T10:00',
      title: 'Los Angeles - Dublin',
      resource: 2,
    },
    {
      start: '2026-11-07T03:00',
      end: '2026-11-07T11:00',
      title: 'Budapest - Ljubljana',
      resource: 4,
    },
    {
      start: '2026-11-07T05:00',
      end: '2026-11-07T12:00',
      title: 'Los Angeles - Dublin',
      resource: 6,
    },
    {
      start: '2026-11-07T13:00',
      end: '2026-11-07T23:00',
      title: 'London - Cairo',
      resource: 7,
    },
    {
      start: '2026-11-07T03:00',
      end: '2026-11-07T14:00',
      title: 'Miami - Buenos-Aires',
      resource: 9,
    },
    {
      start: '2026-11-07T06:00',
      end: '2026-11-07T12:00',
      title: 'Barcelona - Dubai',
      resource: 10,
    },
    {
      start: '2026-11-07T08:00',
      end: '2026-11-07T22:00',
      title: 'Istanbul - New York',
      resource: 11,
    },
    {
      start: '2026-11-07T05:00',
      end: '2026-11-07T11:00',
      title: 'Vienna - Shanghai',
      resource: 12,
    },
  ];

  flights: MbscCalendarEvent[] = [
    {
      start: '2026-11-06T10:00',
      end: '2026-11-06T17:00',
      title: 'Barcelona - Dubai',
      resource: 4,
    },
    {
      start: '2026-11-06T07:30',
      end: '2026-11-06T16:00',
      title: 'Toronto - Rome',
      resource: 8,
    },
    {
      start: '2026-11-06T04:00',
      end: '2026-11-06T08:00',
      title: 'Ljubljana - Budapest',
      resource: 1,
    },
    {
      start: '2026-11-06T02:00',
      end: '2026-11-06T10:00',
      title: 'Paris - Washington, D.C.',
      resource: 2,
    },
    {
      start: '2026-11-06T12:00',
      end: '2026-11-06T23:00',
      title: 'New York - Istanbul',
      resource: 7,
    },
    {
      start: '2026-11-06T15:00',
      end: '2026-11-06T23:00',
      title: 'Moscow - Tokyo',
      resource: 3,
    },
  ];

  jets: MbscResource[] = [
    {
      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',
        },
      ],
    },
  ];

  reservations: MbscResource[] = [
    {
      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',
    },
  ];

  invalid: MbscCalendarEvent[] = [];

  selectedDate: any;
  firstCalCont: any;
  secondCalCont: any;
  skipFirstScroll = false;
  skipSecondScroll = false;

  firstCalOptions: MbscEventcalendarOptions = {
    view: {
      timeline: {
        type: 'day',
        size: 1,
      },
    },
    dragToMove: false,
    dragToCreate: false,
    dragToResize: false,
    eventDelete: true,
    externalDrag: true,
    onPageLoading: (args) => {
      setTimeout(() => {
        this.selectedDate = args.firstDay;
      }, 100);
    },
    onPageLoaded: () => {
      if (!this.firstCalCont) {
        this.firstCalCont = document.querySelector('.md-drag-drop-bw-inst-first .mbsc-timeline-grid-scroll');
        this.firstCalCont.addEventListener('scroll', this.handleFirstScroll);
      }
    },
    onDestroy: () => {
      if (this.firstCalCont) {
        this.firstCalCont.removeEventListener('scroll', this.handleFirstScroll);
      }
    },
  };

  secondCalOptions: MbscEventcalendarOptions = {
    view: {
      timeline: {
        type: 'day',
        size: 1,
      },
    },
    showControls: false,
    dragToCreate: false,
    dragToMove: true,
    dragToResize: false,
    dragInTime: false,
    externalDrop: true,
    eventDelete: true,
    eventOverlap: false,
    onEventCreated: (args) => {
      setTimeout(() => {
        this.flights.push(args.event);
        this.notify.toast({
          display: 'center',
          message: 'Flight scheduled',
        });
      });
    },
    onEventDeleted: (args) => {
      setTimeout(() => {
        this.flights = this.flights.filter((flight) => flight.id !== args.event.id);
      });
    },
    onEventCreateFailed: () => {
      this.notify.toast({
        display: 'center',
        message: "There's already a flight on this date",
      });
    },
    onEventUpdateFailed: () => {
      this.notify.toast({
        display: 'center',
        message: "There's already a flight on this date",
      });
    },
    onEventDragStart: (args) => {
      const unavailable: Record<number, boolean> = {};
      const invalid: MbscCalendarColor = {
        cssClass: 'md-drag-drop-invalid',
        recurring: { repeat: 'daily' },
        resource: [],
      };
      const eventStart = new Date(args.event.start as string);
      const eventEnd = new Date(args.event.end as string);
      // Filter unavailable jets
      this.flights.forEach((flight) => {
        const flightStart = new Date(flight.start as string);
        const flightEnd = new Date(flight.end as string);
        if (flight.id !== args.event.id && flightStart < eventEnd && flightEnd > eventStart) {
          unavailable[flight.resource as number] = true;
        }
      });
      this.flights.forEach((flight) => {
        if (unavailable[flight.resource as number]) {
          flight.cssClass = 'md-drag-drop-faded';
        }
      });
      this.jets.forEach((group) => {
        if (group.children) {
          group.children.forEach((jet) => {
            if (unavailable[jet.id as number]) {
              (invalid.resource as number[]).push(jet.id as number);
            }
          });
        }
      });
      this.invalid = [invalid];
    },
    onEventDragEnd: () => {
      this.flights.forEach((flight) => {
        delete flight.cssClass;
      });
      this.invalid = [];
    },
    onPageLoaded: () => {
      if (!this.secondCalCont) {
        this.secondCalCont = document.querySelector('.md-drag-drop-bw-inst-second .mbsc-timeline-grid-scroll');
        this.secondCalCont.addEventListener('scroll', this.handleSecondScroll);
      }
    },
    onDestroy: () => {
      if (this.secondCalCont) {
        this.secondCalCont.removeEventListener('scroll', this.handleSecondScroll);
      }
    },
  };

  handleFirstScroll = (ev: any) => {
    if (this.secondCalCont && !this.skipSecondScroll) {
      this.skipFirstScroll = true;
      this.secondCalCont.scrollLeft = ev.target.scrollLeft;
    }
    this.skipFirstScroll = false;
  };

  handleSecondScroll = (ev: any) => {
    if (this.firstCalCont && !this.skipFirstScroll) {
      this.skipSecondScroll = true;
      this.firstCalCont.scrollLeft = ev.target.scrollLeft;
    }
    this.skipSecondScroll = false;
  };
}

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