<img src="<?php echo get_template_directory_uri() ?>/assets/img/minus.png" alt="" name="minus" class="minus"/>
   <input type="number" step="<?php echo esc_attr( $step ); ?>" min="<?php echo esc_attr( $min_value ); ?>" max="<?php echo esc_attr( $max_value ); ?>" name="<?php echo esc_attr( $input_name ); ?>" value="<?php echo esc_attr( $input_value ); ?>" data-quantity="<?php echo esc_attr( $input_value ); ?>"  title="<?php echo esc_attr_x( 'Qty', 'Product quantity input tooltip', 'woocommerce' ) ?>" class="input-text qty text exo2Medium" size="4" pattern="<?php echo esc_attr( $pattern ); ?>" inputmode="<?php echo esc_attr( $inputmode ); ?>"/>
<img src="<?php echo get_template_directory_uri() ?>/assets/img/plus.png" alt="" name="plus" class="plus"/>

var cart = {
 init: function () {
 this.qty_click = this.qty_click.bind(this);
            $(document).on(
            'click',
            '.quantity img',
            this.qty_click);
 qty_click: function (evt) {
                    var $clicked = $(evt.target);
                    var qty = $('.quantity').find('.qty');
                    var currVal = qty.val();
                    var $form = $('#doorCart');

                    if ($clicked.is('.minus')) {
                        evt.preventDefault();
                        if (currVal > 0) {
                            var newVal = parseFloat(qty.val()) - 1;
                        } else {
                            newVal = 0;
                        }

                        $clicked.next('.qty').attr('data-quantity', newVal).change();
                        $clicked.next('.qty').attr( 'value', newVal ).change();
                        $clicked.next('.qty').val( newVal ).change();
                    };
                    if ($clicked.is('.plus')) {
                        evt.preventDefault();
                            newVal = parseFloat(qty.val()) + 1;

                        $clicked.prev('.qty').attr('data-quantity', newVal).change();
                        $clicked.prev('.qty').attr( 'value', newVal ).change();
                        $clicked.prev('.qty').val( newVal ).change();
                    };
    }
    $(document).bind('ready ajaxComplete', function(){
    $('[name="update_cart"]').attr("disabled",false);
});

add_action( 'woocommerce_after_cart', 'custom_after_cart' );
function custom_after_cart() {
echo '<script>
jQuery(document).ready(function($) {
    var upd_cart_btn = $(".update-cart-button");
    upd_cart_btn.hide();
    $("#doorCart").find(".qty").on("change", function(){
        upd_cart_btn.trigger("wc_update_cart");
    });
});
</script>';

function action_enqueue_scripts() {
    wp_enqueue_script('update-cart', get_stylesheet_directory_uri().'/update-cart.js', array('jquery'));
}
add_action( 'wp_enqueue_scripts', 'action_enqueue_scripts' );

function click_update_cart_btn(upd_cart_btn) {
    jQuery(".cart_item").parents('form').find('[name="update_cart"]');
        upd_cart_btn.trigger('click');
}

jQuery(document).ready(function($) {
    var update_cart;
    jQuery('body').delegate(".cart_item .qty").on("change", function(){
        if(update_cart != null){
            clearTimeout(update_cart);
        }
        update_cart = setTimeout(click_update_cart_btn, 1000);
    });
});