Calender

With a busy schedule, users might need something to keep track of the upcoming events. A calendar app has been provided, where users can enter the upcoming events and a tag will be added in the calendar. Now you don't have to worry whether you will remember the next scheduled meeting.

Installing and usage

ng add angular-calendar

Inside Your Template tag add:


<div class="card">
  <div class="card-body">
    <div class="row text-center">
      <div class="col-md-4">
        <div class="btn-group">
          <div class="btn btn-primary" mwlCalendarPreviousView [view]="view" [(viewDate)]="viewDate"
            (viewDateChange)="closeOpenMonthViewDay()">
            Previous
          </div>
          <div class="btn btn-outline-secondary" mwlCalendarToday [(viewDate)]="viewDate">
            Today
          </div>
          <div class="btn btn-primary" mwlCalendarNextView [view]="view" [(viewDate)]="viewDate"
            (viewDateChange)="closeOpenMonthViewDay()">
            Next
          </div>
        </div>
      </div>
      <div class="col-md-4">
        <h3>{{ viewDate | calendarDate:(view + 'ViewTitle'):'en' }}</h3>
      </div>
      <div class="col-md-4">
        <div class="btn-group">
          <div class="btn btn-primary" (click)="setView(CalendarView.Month)"
            [class.active]="view === CalendarView.Month">
            Month
          </div>
          <div class="btn btn-primary" (click)="setView(CalendarView.Week)" [class.active]="view === CalendarView.Week">
            Week
          </div>
          <div class="btn btn-primary" (click)="setView(CalendarView.Day)" [class.active]="view === CalendarView.Day">
            Day
          </div>
        </div>
      </div>
    </div>
    <br />
    <div [ngSwitch]="view">
      @switch (view) {
      @case (CalendarView.Month) {
      <mwl-calendar-month-view [viewDate]="viewDate" [events]="events" [refresh]="refresh"
        [activeDayIsOpen]="activeDayIsOpen" (dayClicked)="dayClicked($event.day)"
        (eventClicked)="handleEvent('Clicked', $event.event)" (eventTimesChanged)="eventTimesChanged($event)">
      </mwl-calendar-month-view>
      }
      @case (CalendarView.Month) {
      <mwl-calendar-week-view [viewDate]="viewDate" [events]="events" [refresh]="refresh"
        (eventClicked)="handleEvent('Clicked', $event.event)" (eventTimesChanged)="eventTimesChanged($event)">
      </mwl-calendar-week-view>
      }
      @case (CalendarView.Day) {
      <mwl-calendar-day-view [viewDate]="viewDate" [events]="events" [refresh]="refresh"
        (eventClicked)="handleEvent('Clicked', $event.event)" (eventTimesChanged)="eventTimesChanged($event)">
      </mwl-calendar-day-view>
      }
      }
    </div>
    <!-- Everything you see below is just for the demo, you don't need to include it in your app -->
    <br /><br /><br />
    <h3>
      Edit events
      <button class="btn btn-primary float-end" (click)="addEvent()">
        Add new
      </button>
      <div class="clearfix"></div>
    </h3>
    <div class="table-responsive theme-scrollbar">
      <table class="table table-bordered">
        <thead>
          <tr>
            <th>Title</th>
            <th>Primary color</th>
            <th>Secondary + text color</th>
            <th>Starts at</th>
            <th>Ends at</th>
            <th>Remove</th>
          </tr>
        </thead>
        <tbody>
          @for (event of events; track event) {
          <tr>
            <td>
              <input type="text" class="form-control" [(ngModel)]="event.title" (keyup)="refresh.next()" />
            </td>
            <td>
              @if (event.color) {
              <input type="color" [(ngModel)]="event.color.primary" (change)="refresh.next()" />
              }
            </td>
            <td>
              @if (event.color) {
              <input type="color" [(ngModel)]="event.color.secondary" (change)="refresh.next()" />
              }
              @if (event.color) {
              <input type="color" [ngModel]="event.color.secondaryText ?? '#1e90ff'"
                (ngModelChange)="event.color.secondaryText = $event" (change)="refresh.next()" />
              }
            </td>
            <td>
              <input class="form-control" type="text" mwlFlatpickr [(ngModel)]="event.start"
                (ngModelChange)="refresh.next()" [altInput]="true" [convertModelValue]="true" [enableTime]="true"
                dateFormat="Y-m-dTH:i" altFormat="F j, Y H:i" placeholder="Not set" />
            </td>
            <td>
              <input class="form-control" type="text" mwlFlatpickr [(ngModel)]="event.end"
                (ngModelChange)="refresh.next()" [altInput]="true" [convertModelValue]="true" [enableTime]="true"
                dateFormat="Y-m-dTH:i" altFormat="F j, Y H:i" placeholder="Not set" />
            </td>
            <td>
              <button class="btn btn-danger" (click)="deleteEvent(event)">
                Delete
              </button>
            </td>
          </tr>
          }
          @for (event of events; track event) {
          <tr>
            <td>
              <input type="text" class="form-control" [(ngModel)]="event.title" (keyup)="refresh.next()" />
            </td>
            <td>
              @if (event.color) {
              <input type="color" [(ngModel)]="event.color.primary" (change)="refresh.next()" />
              }
            </td>
            <td>
              @if (event.color) {
              <input type="color" [(ngModel)]="event.color.secondary" (change)="refresh.next()" />
              }
              @if (event.color) {
              <input type="color" [ngModel]="event.color.secondaryText ?? '#1e90ff'"
                (ngModelChange)="event.color.secondaryText = $event" (change)="refresh.next()" />
              }
            </td>
            <td>
              <input class="form-control" type="text" mwlFlatpickr [(ngModel)]="event.start"
                (ngModelChange)="refresh.next()" [altInput]="true" [convertModelValue]="true" [enableTime]="true"
                dateFormat="Y-m-dTH:i" altFormat="F j, Y H:i" placeholder="Not set" />
            </td>
            <td>
              <input class="form-control" type="text" mwlFlatpickr [(ngModel)]="event.end"
                (ngModelChange)="refresh.next()" [altInput]="true" [convertModelValue]="true" [enableTime]="true"
                dateFormat="Y-m-dTH:i" altFormat="F j, Y H:i" placeholder="Not set" />
            </td>
            <td>
              <button class="btn btn-danger" (click)="deleteEvent(event)">
                Delete
              </button>
            </td>
          </tr>
          }
        </tbody>
      </table>
    </div>

    <ng-template #modalContent let-close="close">
      <div class="modal-header">
        <h5 class="modal-title">Event action occurred</h5>
        <button type="button" class="close" (click)="close()">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <div>
          Action:
          <pre>{{ modalData.action }}</pre>
        </div>
        <div>
          Event:
          <pre>{{ modalData.event | json }}</pre>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-outline-secondary" (click)="close()">
          OK
        </button>
      </div>
    </ng-template>
  </div>
</div>

Inside Your Script tag add:


import { Component, ViewChild, TemplateRef, ViewEncapsulation, } from '@angular/core';
import { startOfDay, endOfDay, subDays, addDays, endOfMonth, isSameDay, isSameMonth, addHours,} from 'date-fns';
import { Subject } from 'rxjs';
import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
import { CalendarEvent, CalendarEventAction, CalendarEventTimesChangedEvent, CalendarView, 
  CalendarCommonModule, CalendarMonthModule, CalendarWeekModule, CalendarDayModule } from 'angular-calendar';
import { EventColor } from 'calendar-utils';
import { FlatpickrModule } from 'angularx-flatpickr';
import { FormsModule } from '@angular/forms';
import { NgSwitch, NgSwitchCase, JsonPipe } from '@angular/common';

const colors: Record = {
  red: {
    primary: '#ad2121',
    secondary: '#FAE3E3',
  },
  blue: {
    primary: '#1e90ff',
    secondary: '#D1E8FF',
  },
  yellow: {
    primary: '#e3bc08',
    secondary: '#FDF1BA',
  },
};
@Component({
    selector: 'app-calander',
    templateUrl: './calander.html',
    styleUrls: ['./calander.scss'],
    encapsulation: ViewEncapsulation.None,
    imports: [CalendarCommonModule, NgSwitch, NgSwitchCase, CalendarMonthModule, CalendarWeekModule, 
      CalendarDayModule,  FormsModule,  FlatpickrModule, JsonPipe]
})
export class Calender {
  
  @ViewChild('modalContent', { static: false })
  modalContent!: TemplateRef;
  
  view: CalendarView = CalendarView.Month;
  
  CalendarView = CalendarView;
  
  viewDate: Date = new Date();
  
  modalData!: {
    action: string;
    event: CalendarEvent;
  };
  constructor(private modal: NgbModal) {}
  
  actions: CalendarEventAction[] = [
    {
      label: '',
      a11yLabel: 'Edit',
      onClick: ({ event }: { event: CalendarEvent }): void => {
        this.handleEvent('Edited', event);
      },
    },
    {
      label: '',
      a11yLabel: 'Delete',
      onClick: ({ event }: { event: CalendarEvent }): void => {
        this.events = this.events.filter((iEvent) => iEvent !== event);
        this.handleEvent('Deleted', event);
      },
    },
  ];

  refresh = new Subject();

  events: CalendarEvent[] = [
    {
      start: subDays(startOfDay(new Date()), 1),
      end: addDays(new Date(), 1),
      title: 'A 3 day event',
      color: {primary: '#ad2121',
      secondary: '#FAE3E3'},
      actions: this.actions,
      allDay: true,
      resizable: {
        beforeStart: true,
        afterEnd: true,
      },
      draggable: true,
    },
    {
      start: startOfDay(new Date()),
      title: 'An event with no end date',
      color: { ...colors['yellow'] },
      actions: this.actions,
    },
    {
      start: subDays(endOfMonth(new Date()), 3),
      end: addDays(endOfMonth(new Date()), 3),
      title: 'A long event that spans 2 months',
      color: { ...colors['blue'] },
      allDay: true,
    },
    {
      start: addHours(startOfDay(new Date()), 2),
      end: addHours(new Date(), 2),
      title: 'A draggable and resizable event',
      color: { ...colors['yellow'] },
      actions: this.actions,
      resizable: {
        beforeStart: true,
        afterEnd: true,
      },
      draggable: true,
    },
  ];

  activeDayIsOpen: boolean = true;
  color: string

  dayClicked({ date, events }: { date: Date; events: CalendarEvent[] }): void {
    if (isSameMonth(date, this.viewDate)) {
      if (
        (isSameDay(this.viewDate, date) && this.activeDayIsOpen === true) ||
        events.length === 0
      ) {
        this.activeDayIsOpen = false;
      } else {
        this.activeDayIsOpen = true;
      }
      this.viewDate = date;
    }
  }

  eventTimesChanged({
    event,
    newStart,
    newEnd,
  }: CalendarEventTimesChangedEvent): void {
    this.events = this.events.map((iEvent) => {
      if (iEvent === event) {
        return {
          ...event,
          start: newStart,
          end: newEnd,
        };
      }
      return iEvent;
    });
    this.handleEvent('Dropped or resized', event);
  }

  handleEvent(action: string, event: CalendarEvent): void {
    this.modalData = { event, action };
    this.modal.open(this.modalContent, { size: 'lg' });
  }

  addEvent(): void {
    this.events = [
      ...this.events,
      {
        title: 'New event',
        start: startOfDay(new Date()),
        end: endOfDay(new Date()),
        color: colors['red'],
        draggable: true,
        resizable: {
          beforeStart: true,
          afterEnd: true,
        },
      },
    ];
  }

  deleteEvent(eventToDelete: CalendarEvent) {
    this.events = this.events.filter((event) => event !== eventToDelete);
  }

  setView(view: CalendarView) {
    this.view = view;
  }

  closeOpenMonthViewDay() {
    this.activeDayIsOpen = false;
  }
}