React Fullcalendar v4 tooltip

Question

Fullcalendar React component:

import FullCalendar from "@fullcalendar/react";
import timeGrid from "@fullcalendar/resource-timegrid";
import resourceDayGridPlugin from '@fullcalendar/resource-daygrid';

class FC extends React.Component {
  calendarComponentRef = React.createRef();

  constructor(props) {
    super(props);    
    this.state = {
        events:[{ "id": 1, "title": "event 1", "description":"some description"},......]
    }  
  }

  eventRender(info){
    var tooltip = new Tooltip(info.el, {
      title: info.event.extendedProps.description,
      placement: 'top',
      trigger: 'hover',
      container: 'body'
    });
  }

  render() {
    return <FullCalendar                  
          events={this.state.getEvents}          
          defaultView="resourceTimeGridDay"
      plugins={[timeGrid, interactionPlugin, resourceDayGridPlugin]}
          eventRender={this.eventRender}
          schedulerLicenseKey="GPL-My-Project-Is-Open-Source"
        />

  }
}

Tooltip.js included in header

<script src="https://unpkg.com/popper.js/dist/umd/popper.min.js"></script>
<script rc="https://unpkg.com/tooltip.js/dist/umd/tooltip.min.js">/script>

Exactly trying to this demo in react, but it is not working in react version.

But tooltip not working

Fullcalendar react example project sample project react fullcalendar

Answer 1

MUI Tooltip + fullcalendar v5 + Typescript

Inspired by @user-rebo, here’s an explanation with TypeScript on how to customize event rendering in fullcalendar.

fullcalendar's default event rendering method is renderInnerContent. You can find this method in the fullcalendar GitHub repository: FullCalendar StandardEvent.tsx - renderInnerContent

Since fullcalendar does not export this method directly, you will need to copy the renderInnerContent method into your project. This allows you to customize it as needed.

function renderInnerContent(innerProps: EventContentArg) {
  return (
    <div className="fc-event-main-frame">
      {innerProps.timeText && (
        <div className="fc-event-time">{innerProps.timeText}</div>
      )}
      <div className="fc-event-title-container">
        <div className="fc-event-title fc-sticky">
          {innerProps.event.title || <Fragment>&nbsp;</Fragment>}
        </div>
      </div>
    </div>
  )
}

Use a custom renderCustomEventContent method in your fullcalendar configuration. Here’s an example of how to integrate this within your FullCalendar setup:

const renderCustomEventContent = (eventInfo: EventContentArg) => (
  <Tooltip title="My custom tooltip title" arrow placement="top">
     { renderInnerContent(eventInfo )}
  </Tooltip>
);

To add a tooltip for a custom view, include the custom rendering of the event as follows:

views={{
  resourceTimeGridSevenDays: {
    ...,
    eventContent: renderCustomEventContent,
  }
}}

If you want to override this for all views, simply use the eventContent method directly in FullCalendar.

<Calendar
  ...
  eventContent={renderCustomEventContent}
/>

Result:

Answer 2

Best I did so far. This will at least give a title to an event.

<FullCalendar eventDidMount={renderEventContent} .....

function renderEventContent(info) {
  info.el.setAttribute('title', info.event.title)
}

Answer 3

FullCalendar v5

With content injection hook e.g. for Material-ui tooltip:

eventContent: ( arg ) => {
    return (
        <Tooltip title={ <Typography color="inherit">Tooltip with HTML</Typography> } arrow>
            { renderInnerContent( arg ) }
        </Tooltip>
    );
}

If you want to have the exact same content as the default, then copy the function from fullcalendar source:

/**
 * https://github.com/fullcalendar/fullcalendar/blob/495d925436e533db2fd591e09a0c887adca77053/packages/common/src/common/StandardEvent.tsx#L79
 */
function renderInnerContent( innerProps ) {
    return (
        <div className='fc-event-main-frame'>
            { innerProps.timeText &&
            <div className='fc-event-time'>{ innerProps.timeText }</div>
            }
            <div className='fc-event-title-container'>
                <div className='fc-event-title fc-sticky'>
                    { innerProps.event.title || <Fragment>&nbsp;</Fragment> }
                </div>
            </div>
        </div>
    );
}

To differentiate ListView content from default content you can use this code (given a Calendar reference calendarRef):

eventContent: ( arg ) => {
    const data = calendarRef.current.getApi().getCurrentData();
    const viewSpec = data.viewSpecs[arg.view.type];
    let innerContent;
    if (viewSpec.component === ListView) {
        /**
         * https://github.com/fullcalendar/fullcalendar/blob/495d925436e533db2fd591e09a0c887adca77053/packages/list/src/ListViewEventRow.tsx#L55
         */
        innerContent = renderListInnerContent( arg );
    } else {
        innerContent = renderInnerContent( arg );
    }
    return ( <Tooltip ... >{ innerContent }</Tooltip>);
};

Answer 4

Tooltip using tippy with eventMouseEnter

    handleMouseEnter = (arg) =>{
    tippy(arg.el, {
        content: "my tooltip!"
    });
}

in component

render() {
    return (
            <FullCalendar ref={this.calendarRef}
                          plugins={[dayGridPlugin, interactionPlugin]}
                          initialView="dayGridMonth"
                          weekends={true}
                          eventMouseEnter={this.handleMouseEnter}

            />
    )
}

Answer 5

Tooltip using Tooltip.js

eventRender(info){
    var tooltip = new Tooltip(info.el, {
      title: info.event.extendedProps.description,
      placement: 'top',
      trigger: 'hover',
      container: 'body'
    });
  }

In component :

render() {
    return <FullCalendar                  
          events={this.state.getEvents}          
          defaultView="resourceTimeGridDay"
      plugins={[timeGrid, interactionPlugin, resourceDayGridPlugin]}
          eventRender={this.eventRender}
          schedulerLicenseKey="GPL-My-Project-Is-Open-Source"
        />

  }

OR

using react-tooltip

import ReactTooltip from 'react-tooltip'

and method to handle eventPosition

handleEventPositioned(info) {
  info.el.setAttribute("data-tip","some text tip");
   ReactTooltip.rebuild();
 }

and  

render() {
        return <FullCalendar                  
              events={this.state.getEvents}          
              defaultView="resourceTimeGridDay"
          plugins={[timeGrid, interactionPlugin, resourceDayGridPlugin]}
              eventPositioned={this.handleEventPositioned}
              schedulerLicenseKey="GPL-My-Project-Is-Open-Source"
            />

      }