Preview Click Handler

Use onPreviewClick to open a lightbox or custom viewer when a thumbnail is clicked.

(function() {
    new MultipleUpload('#demo', {
        uploadUrl: '/api/upload',
        multiple: true,
        accept: 'image/*',
        showThumbnails: true,
        onPreviewClick: function(task) {
            if (task.thumbnailUrl) {
                MultipleUpload.showLightbox(task.thumbnailUrl, task.fileName);
            }
        }
    });
})();