Highlight Week Datepicker When Click FullCalendar

When integrating a datepicker with FullCalendar, a common requirement is to highlight the entire week on the calendar when a user clicks on any date within that week. This dynamic interaction enhances user experience and provides a clear visual representation of the selected week.

<shortcode-1>fullcalendar-highlight-week|FullCalendar highlight week|A screenshot showcasing a FullCalendar view with a week highlighted, typically by changing the background color of the selected week's cells.

While FullCalendar doesn’t offer a built-in method for this specific functionality, achieving this effect is surprisingly straightforward with a few lines of JavaScript code and a dash of CSS styling. Let’s dive into the implementation process, breaking down each step for clarity.

Understanding the Goal: User-Centric Calendar Interaction

The primary objective is to ensure that clicking on any date within a week instantly highlights that entire week on the FullCalendar interface. This seemingly minor enhancement can significantly impact user interaction, particularly in applications where weekly selections are frequent.

Imagine a scheduling app where users need to book appointments for a whole week. Clicking on a single day and seeing the entire week highlighted offers immediate visual feedback, confirming their selection and simplifying the booking process.

Implementing the Highlight Week Functionality

The core of this functionality lies in leveraging FullCalendar’s event handling capabilities and manipulating CSS styles to achieve the desired visual effect. Here’s a step-by-step breakdown:

1. Capture the Date Click Event

FullCalendar provides a convenient ‘dayClick’ event that triggers every time a user clicks on a day cell within the calendar. We’ll use this event to capture the clicked date and initiate the week highlighting process.

    $('#calendar').fullCalendar({
        dayClick: function(date, jsEvent, view) {
            // Code to highlight the week containing the clicked date
        }
    });

2. Calculate the Start and End Dates of the Week

Once we have the clicked date, we need to determine the starting and ending dates of the week containing that date. We can utilize JavaScript’s Date object and its getDay() method to accomplish this:

    // Assuming Sunday as the start of the week (index 0)
    var startOfWeek = new Date(date);
    startOfWeek.setDate(date.getDate() - date.getDay());

    var endOfWeek = new Date(startOfWeek);
    endOfWeek.setDate(startOfWeek.getDate() + 6);

3. Apply CSS Styling to Highlight the Week

Now that we have the start and end dates of the selected week, we can use CSS to visually highlight the corresponding cells on the FullCalendar. One approach is to add a specific CSS class to these cells:

.highlighted-week {
    background-color: #f0f0f0; // Choose your desired highlight color
}

Then, within the dayClick event handler, iterate through the dates from startOfWeek to endOfWeek and apply this CSS class to the corresponding cells:

    var daysToHighlight = $('.fc-day'); 
    daysToHighlight.each(function() {
        var cellDate = new Date($(this).data('date')); 

        if (cellDate >= startOfWeek && cellDate <= endOfWeek) {
            $(this).addClass('highlighted-week');
        } else {
            $(this).removeClass('highlighted-week'); 
        }
    });

<shortcode-2>highlighted-week-css|CSS code for highlighted week|A code snippet showcasing the CSS rules used to define the "highlighted-week" class, typically including background color or other visual styles to differentiate the highlighted week from other weeks on the calendar.

4. Enhancements and Considerations

This implementation provides a basic framework. Further enhancements can be made based on specific requirements:

Customizable Highlight Styles: Allow users to choose from different highlight colors or styles.
Multiple Week Selection: Extend the functionality to enable selecting and highlighting multiple weeks.
Integration with External Datepickers: Adapt the code to work seamlessly with external datepicker libraries.

Conclusion

By combining FullCalendar’s event handling with targeted CSS styling, we’ve achieved a user-friendly week highlighting feature. This simple enhancement enhances calendar interactions and provides a clear visual representation of weekly selections, ultimately improving the user experience.

For any assistance with implementing this or similar calendar functionalities, don’t hesitate to reach out. Contact us at Phone Number: 0372999996, Email: [email protected], or visit our office at 236 Cau Giay, Hanoi. We are available 24/7 to provide support.