FullCalendar - Images as events - fullcalendar

Question

Looking to use Full Calendar and to include images as events and draggable. In short, would love to see how this example https://fullcalendar.io/js/fullcalendar-3.0.1/demos/external-dragging.html would work with small thumbnails instead of the text "My Event 1, My Event 2" etc. And have that image show up on the calendar.
Thanks in advance.

Answer 1

You can add any image url to your eventObject by adding the attribute "imageurl" inside of the events definition (if you just want the image, don't specify a title):
events: [
{
title : 'event',
start : '2016-10-12',
end : '2016-10-14',
imageurl:'img/edit.png', //you can pass the image url with a variable if you wish different images for each event
.
.
.
}
After that, you add the following code in the eventRender, which will add the image icon to the event (16 width and height is a good size for a thumbnail):
eventRender: function(event, eventElement) {
if (event.imageurl) {
eventElement.find("div.fc-content").prepend("<img src='" + event.imageurl +"' width='16' height='16'>");
}
},
For further details refer to this question: Add Icon(s) in first line of an event (fullCalendar)

Answer 2

In version Fullcalendar 5 or newer eventRender is no longer used, instead used eventContent
Full code:
document.addEventListener('DOMContentLoaded', function() {
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
initialView: 'dayGridMonth',
events: [
{
title: '',
start: '2020-09-02',
image_url: 'images/demo/event-calendar-1.png',
},
{
title: '',
start: '2020-09-02',
image_url: 'images/demo/event-calendar-2.png',
},
{
title: 'Event',
start: '2020-09-17',
image_url: 'images/demo/event-calendar-1.png',
},
{
title: '',
start: '2020-09-19',
image_url: 'images/demo/event-calendar-3.png',
},
{
title: 'Hello',
start: '2020-09-28'
},
],
eventContent: function(arg) {
let arrayOfDomNodes = []
// title event
let titleEvent = document.createElement('div')
if(arg.event._def.title) {
titleEvent.innerHTML = arg.event._def.title
titleEvent.classList = "fc-event-title fc-sticky"
}
// image event
let imgEventWrap = document.createElement('div')
if(arg.event.extendedProps.image_url) {
let imgEvent = '<img src="'+arg.event.extendedProps.image_url+'" >'
imgEventWrap.classList = "fc-event-img"
imgEventWrap.innerHTML = imgEvent;
}
arrayOfDomNodes = [ titleEvent,imgEventWrap ]
return { domNodes: arrayOfDomNodes }
},
});
calendar.render();
});