Add a preview system in FF file upload field

Add a preview system in FF file upload field

$('.ff_file_upload_holder').each(function(){
    $(this).change(function(){

        let uploadField = $(this).next().children();
        let fileLink = uploadField.attr('data-src');
        
        if(fileLink){
            uploadField.children('.ff-upload-thumb').click(function(){
                window.open(fileLink,'blank');
            });
            
            let fileName = uploadField.children('.ff-upload-details').find('.ff-upload-filename').html();
            uploadField.children('.ff-upload-details').find('.ff-upload-filename').html(`<a href = ${fileLink} target = "blank"> ${fileName} </a>`)
        }
        
    });
    
});