https://shop.emagine-eye.com/wp-content/plugins/advanced-product-quantity/assets/js/afadvfront.js?ver=1.0

1jQuery(document).ready(function ($) {
2  $(".woocommerce .products").on("click", ".quantity input", function () {
3    return false;
4  });
5  $(".quantity .qty").each(function () {
6    var add_to_cart_button = $(this)
7      .parents(".product")
8      .find(".add_to_cart_button");
9
10    // For AJAX add-to-cart actions
11    add_to_cart_button.attr("data-quantity", $(this).val());
12
13    // For non-AJAX add-to-cart actions
14    add_to_cart_button.attr(
15      "href",
16      "?add-to-cart=" +
17        add_to_cart_button.attr("data-product_id") +
18        "&quantity=" +
19        $(this).val(),
20    );
21  });
22  $(".woocommerce .products").on("change input", ".quantity .qty", function () {
23    var add_to_cart_button = $(this)
24      .parents(".product")
25      .find(".add_to_cart_button");
26
27    // For AJAX add-to-cart actions
28    add_to_cart_button.attr("data-quantity", $(this).val());
29
30    // For non-AJAX add-to-cart actions
31    add_to_cart_button.attr(
32      "href",
33      "?add-to-cart=" +
34        add_to_cart_button.attr("data-product_id") +
35        "&quantity=" +
36        $(this).val(),
37    );
38  });
39
40  // Trigger on Enter press
41  $(".woocommerce .products").on("keypress", ".quantity .qty", function (e) {
42    if ((e.which || e.keyCode) === 13) {
43      $(this).parents(".product").find(".add_to_cart_button").trigger("click");
44    }
45  });
46
47  $("input.af-fixed-quantity").each(function () {
48    $(this).attr("max", $(this).attr("min"));
49  });
50
51  if ($("select.af-single-dropdown-quantity")) {
52    $("form.cart").each(function () {
53      if ($(this).closest("ul.products").length) {
54        return;
55      }
56
57      if (
58        !(
59          $(this).hasClass("grouped_form") ||
60          $(this).hasClass("variations_form")
61        )
62      ) {
63        $(this)
64          .find($("input.af-dropdown-quantity"))
65          .replaceWith($("select.af-single-dropdown-quantity"));
66
67        $("select.af-single-dropdown-quantity").show();
68      }
69    });
70  }
71
72  if ($("select.af-archive-dropdown-quantity")) {
73    $("form.cart").each(function () {
74      if ($(this).closest("ul.products").length) {
75        if (
76          !(
77            $(this).hasClass("grouped_form") ||
78            $(this).hasClass("variations_form")
79          )
80        ) {
81          $(this)
82            .find($("input.af-dropdown-quantity"))
83            .replaceWith(
84              $(this)
85                .closest("li.product")
86                .find("select.af-archive-dropdown-quantity"),
87            );
88
89          $("form.cart select.af-archive-dropdown-quantity").show();
90        }
91      }
92    });
93
94    $("form.cart select.af-dropdown-quantity").show();
95  }
96
97  $(document).ajaxComplete(function () {
98    var pro_qty = $(".afadv_qnt_var_cart").prev();
99
100    if (pro_qty.length > 0) {
101      pro_qty.remove();
102    }
103  });
104
105  var pro_qty = $(".afadv_qnt_var_cart").prev();
106
107  if (pro_qty.length > 0) {
108    pro_qty.remove();
109  }
110  afadv_show_variation_quantity();
111  $("input.variation_id").change(function () {
112    if ("" != $("input.variation_id").val()) {
113      var vari_id = $("input.variation_id").val();
114      var hidden_Var = $("input.afadv_vari_" + vari_id);
115      var hidden_Var_fix = $("input.afadv_vari_fix_" + vari_id);
116      afadv_show_variation_quantity(vari_id);
117    }
118  });
119  $("a.reset_variations").on("click", function () {
120    afadv_show_variation_quantity();
121  });
122
123  function afadv_show_variation_quantity(variation_id) {
124    var variation_id = $("form.variations_form").find(".variation_id").val();
125
126    if ($("div.af-quantity-variation-" + variation_id).length) {
127      $("form.variations_form")
128        .find("div.quantity")
129        .replaceWith($("div.af-quantity-variation-" + variation_id).html());
130    }
131
132    $("form.variations_form").on(
133      "woocommerce_variation_has_changed",
134      function () {
135        if ($(this).find(".variation_id").val()) {
136          var variation_id = $(this).find(".variation_id").val();
137
138          if ($("div.af-quantity-variation-" + variation_id).length) {
139            $("form.variations_form")
140              .find("div.quantity")
141              .replaceWith(
142                $("div.af-quantity-variation-" + variation_id).html(),
143              );
144          }
145        }
146      },
147    );
148
149    $("div.af-quantity-grouped").each(function () {
150      var child_id = $(this).data("child_id");
151
152      if ($("tr#product-" + child_id)) {
153        $("tr#product-" + child_id)
154          .find("div.quantity")
155          .html($(this).html());
156      }
157
158      $(this).remove();
159    });

160  }
161});
162// For your specific values: [3, 12, 34]
163// This will jump: 3 → 12 → 34 and back: 34 → 12 → 3
164
165jQuery(document).ready(function($) {
166    // Handle dynamically added elements (for cart updates, etc.)
167    $(document).on('focus', '.af-custom-quantity', function() {
168        var $input = $(this);
169        
170        // Only initialize if not already done
171        if ($input.data('custom-initialized')) return;
172        
173        var steps = $input.data('custom-values');
174        if (!steps) {
175            // Parse from data attribute or comma-separated string
176            var stepsStr = $input.attr('data-custom-values') || $input.data('custom-values');
177            if (stepsStr) {
178                steps = stepsStr.split(',').map(Number);
179            }
180        }
181        
182        if (!steps || steps.length === 0) return;
183        
184        var inputVal = parseInt($input.val()) || steps[0];
185        
186        // Store steps and current value as data attributes
187        $input.data('steps', steps);
188        $input.data('current-value', inputVal);
189        $input.data('custom-initialized', true);
190        
191        // Add change event handler
192        $input.off('change.custom').on('change.custom', function() {
193            var steps = $(this).data('steps');
194            var currentVal = $(this).data('current-value');
195            var newVal = parseInt($(this).val());
196            var dir = 0;
197            
198            // Determine direction based on value change
199            if (newVal > currentVal) {
200                dir = 1;
201            } else if (newVal < currentVal) {
202                dir = -1;
203            }
204            
205            // Find current index in steps array
206            var currentIndex = steps.indexOf(currentVal);
207            
208            // Calculate new index
209            var newIndex = currentIndex + dir;
210            
211            // Ensure within bounds
212            if (newIndex >= 0 && newIndex < steps.length) {
213                $(this).val(steps[newIndex]);
214                $(this).data('current-value', steps[newIndex]);
215            } else {
216                // If out of bounds, revert to current value
217                $(this).val(currentVal);
218            }
219            
220            // Trigger WooCommerce cart update event
221            $(this).trigger('blur').trigger('change');
222        });
223        
224        // Handle keyboard up/down arrows
225        $input.off('keydown.custom').on('keydown.custom', function(e) {
226            var steps = $(this).data('steps');
227            var currentVal = $(this).data('current-value');
228            var currentIndex = steps.indexOf(currentVal);
229            
230            if (e.keyCode === 38) { // Up arrow
231                e.preventDefault();
232                if (currentIndex < steps.length - 1) {
233                    $(this).val(steps[currentIndex + 1]);
234                    $(this).data('current-value', steps[currentIndex + 1]);
235                    $(this).trigger('change');
236                }
237            } else if (e.keyCode === 40) { // Down arrow
238                e.preventDefault();
239                if (currentIndex > 0) {
240                    $(this).val(steps[currentIndex - 1]);
241                    $(this).data('current-value', steps[currentIndex - 1]);
242                    $(this).trigger('change');
243                }
244            }
245        });
246    });
247    
248    // Initialize existing inputs on page load
249    $('.af-custom-quantity').each(function() {
250        $(this).trigger('focus');
251    });
252});
253// Function to check for notices and toggle buttons
254function checkNoticesAndToggleButton() {
255    // Only count error notices
256    const hasErrorNotice =
257        document.querySelectorAll(
258            '.wc-block-components-notice-banner.is-error'
259        ).length > 0;
260
261    // Cart page button
262    const checkoutButton = document.querySelector(
263        '.wc-block-cart__submit-button'
264    );
265
266    // Checkout page button
267    const placeOrderButton = document.querySelector(
268        '.wc-block-components-checkout-place-order-button'
269    );
270
271    // Toggle helper
272    const toggleButton = (button, disabled) => {
273        if (!button) {
274            return;
275        }
276
277        // Prevent unnecessary DOM updates
278        if (button.disabled !== disabled) {
279            button.disabled = disabled;
280            button.style.opacity = disabled ? '0.5' : '1';
281            button.style.cursor = disabled ? 'not-allowed' : 'pointer';
282        }
283    };
284
285    toggleButton(checkoutButton, hasErrorNotice);
286    toggleButton(placeOrderButton, hasErrorNotice);
287}
288
289// Initial load
290document.addEventListener('DOMContentLoaded', () => {
291    checkNoticesAndToggleButton();
292
293    // Observe only checkout/cart notices area
294    const target =
295        document.querySelector('.wc-block-components-notices') ||
296        document.body;
297
298    let timeout;
299
300    const observer = new MutationObserver(() => {
301        // Debounce to avoid loops/spam
302        clearTimeout(timeout);
303
304        timeout = setTimeout(() => {
305            checkNoticesAndToggleButton();
306        }, 100);
307    });

308
309    observer.observe(target, {
310        childList: true,
311        subtree: true,
312        attributes: false,
313    });
314});
315
316// WooCommerce block/cart events
317if (typeof jQuery !== 'undefined') {
318    jQuery(document.body).on(
319        'updated_cart_totals updated_checkout wc-blocks_added_to_cart',
320        function () {
321            setTimeout(checkNoticesAndToggleButton, 100);
322        }
323    );
324}