https://www.thailandunique.com/catalog/view/javascript/notifywhenavailable/notifywhenavailable.js

1//NotifyWhenAvailable
2var clickedButtons;
3var lastProductId = null;
4var lastQuantity = null;
5var origAddToCart = window.addToCart;
6var nwaAddToCart;
7var nwaAddToCartSelector = 'button#button-cart[onclick], [onclick^="cart.add"], [onclick^="addToCart"], [onclick^="mgk_cart.add"], [onclick^="ee_cart.add"], [onclick^="cart_theme.add"], .button[data-clk]';
8
9nwaAddToCart = function(product_id, quantity) {
10    $('.alert, .text-danger').remove();
11    $('.form-group').removeClass('has-error');
12    $('#cart > button').button('reset');
13
14    $('#NotifyWhenAvailable_popup').detach().appendTo('body');
15    var btn = clickedButtons;
16
17    offset = $(btn).offset();
18
19    $('div#NotifyWhenAvailable_popup').fadeIn('slow');
20    $(".NWA_popover-content").load("index.php?route=extension/module/notifywhenavailable/shownotifywhenavailableform&product_id="+product_id, function() {
21        var window_width = $(window).width();
22        var window_height = $(window).height();
23
24        if(window_width >= 600 && window_width <= 1024) {
25
26            if($('.modal-backdrop').length < 1) {
27                $('<div class="modal-backdrop fade in"></div>').appendTo(document.body);
28            } else {
29                $('.modal-backdrop').css('display','block');
30            }
31
32            $('body').css('overflow-y', 'hidden');
33
34            $('.NWA_popover.bottom .arrow').css('display','none');
35
36            $('div#NotifyWhenAvailable_popup').css({
37                top: '50%',
38                left: '50%',
39            position: 'fixed',
40            'margin-top': -$('div.nwa-inner-wrapper').height()/2,
41            'margin-left': -$('div#NotifyWhenAvailable_popup').width()/2,
42
43            });
44        }
45        else if (window_width < 600) {
46            if($('.modal-backdrop').length < 1) {
47                $('<div class="modal-backdrop fade in"></div>').appendTo(document.body);
48            } else {
49                $('.modal-backdrop').css('display','block');
50            }
51
52            $('body').css('overflow-y', 'hidden');
53
54            $('.NWA_popover.bottom .arrow').css('display','none');
55
56            $('div#NotifyWhenAvailable_popup').css({
57                top: 'calc(50% - 50%)',
58                left: 'calc(50% - 140px)',
59                position: 'fixed',
60                // 'margin-top': -$('.nwa-inner-wrapper').height()/2,
61                // 'margin-left': -$('.nwa-inner-wrapper').width()/2,
62            });
63        } else {
64        $('div#NotifyWhenAvailable_popup').css({
65            top: offset.top,
66            left: ((offset.left-$('div#NotifyWhenAvailable_popup').width()/2) + $('#button-cart').width()/2)
67          });
68        }
69    });
70};
71
72function nwa(e, product_id, quantity) {
73    e.preventDefault();
74    e.stopPropagation();
75    e.stopImmediatePropagation();
76    clickedButtons = e.target;
77    nwaAddToCart(product_id, quantity);
78}
79
80var checkQuantityNWA = function(product_ids) {
81
82    $.ajax({
83        url: 'index.php?route=extension/module/notifywhenavailable/checkQuantityNWA',
84        type: 'post',
85        data: {product_ids: product_ids},
86        dataType: 'json',
87        success: function(json) {
88            if(json) {
89                $(nwaAddToCartSelector).each(function(i,e){
90
91                		var rpAttr = $(this).attr('onclick');
92                		var params = null;
93				    	if (typeof rpAttr === 'undefined' || rpAttr === false) {
94                            if ($(this).attr('data-clk')) {
95                                var params = $(this).attr('data-clk').match(/\d+/);
96                            } else {
97    				    		params = [$('input[type="hidden"][name="product_id"]').val()];
98                            }
99				    	} else {
100	                        params = $(this).attr('onclick').match(/\d+/);
101	                    }
102
103                        var rpAttr = $(this).attr('onclick');
104                        if (typeof rpAttr === 'undefined' || rpAttr === false) {
105                            params = [$('input[type="hidden"][name="product_id"]').val()];
106                        }
107                        var params = $(this).attr('onclick').match(/\d+/);
108                        var func_call = 'nwa(event, ';
109                        var button = $(this);
110                        if (params) {
111                            if (params[0]) {
112                                func_call += params[0];
113                                if (params[1]) {
114                                    func_call += ', ' + params[1];
115                                } else {
116                                    func_call += ', 1';
117                                }
118                            }
119                        }
120                        func_call += ');';
121                        for (i in json) {
122                            if(!json[i].PO && json[i].product_id == params[0]) {
123                                button.attr('onclick', func_call);
124								button.prop('disabled', false);
125                                button.find('span').html(json[i]['NWA_text']);
126                                button.attr('data-hint',json[i]['NWA_text']);
127                                button.attr('data-original-title', 'Notify Me!');
128                                button.addClass('NWA-btn-action');
129                                if(button.parents('.cart').hasClass('outofstock')) {
130                                    button.parents('.cart').removeClass('outofstock');
131                                }
132                            }
133                        }
134                    });
135            }
136        }
137    });
138
139};
140
141var rescanPage = function(old_product_ids) {
142    var check_product_ids = [];
143    if ($('input[type="hidden"][name="product_id"]').length == 1) {
144        check_product_ids.push($('input[type="hidden"][name="product_id"]').val());
145    }
146    $(nwaAddToCartSelector).each(function(i,e){
147        var rpAttr = $(this).attr('onclick');
148        if (typeof rpAttr === 'undefined' || rpAttr === false) {
149            return;
150        }
151        var params = $(this).attr('onclick').match(/\d+/);
152        check_product_ids.push(params[0]);
153    });
154	console.log(check_product_ids);
155    checkQuantityNWA(check_product_ids);
156}
157
158$(document).ready(function() {
159    var check_product_ids = [];
160    $(nwaAddToCartSelector).each(function(i,e){
161    	var rpAttr = $(this).attr('onclick');
162    	if (typeof rpAttr === 'undefined' || rpAttr === false) {
163    		return;
164    	}
165        if ($(this).attr('data-clk')) {
166            var params = $(this).attr('data-clk').match(/\d+/);
167        } else {
168            var params = $(this).attr('onclick').match(/\d+/);
169        }
170
171        var rpAttr = $(this).attr('onclick');
172        if (typeof rpAttr === 'undefined' || rpAttr === false) {
173            return;
174        }
175        var params = $(this).attr('onclick').match(/\d+/);
176        check_product_ids.push(params[0]);
177    });
178
179    checkQuantityNWA(check_product_ids);
180
181    $(document).click(function(event) {
182        if (!$(event.target).is("#NotifyWhenAvailable_popup,  #button-nwa-duplicate, #button-nwa-duplicate span, button[lkmwa=true], input[lkmwa=true], .NWA_popover-title, .arrow, .NWA_popover-content, #NWAYourName, #NWAYourEmail, #NWAYourComment, #NWAYourComment, #NWACaptchaImage, #NWACaptcha, #NotifyWhenAvailableSubmit, #NotifyWhenAvailable_popup p, #NotifyWhenAvailable_popup span, .NWA_popover, #NotifyWhenAvailableForm, .NWAError, input.NWA_popover_field_error, #button-cart, #NWAPrivacyPolicy, #NWAPrivacyPolicy *")) {
183            $('div#NotifyWhenAvailable_popup').fadeOut(300);
184            $('.modal-backdrop').fadeOut(300);
185            $('body').css('overflow-y', 'inherit');
186        }
187    });
188
189    var rescanTimer = null;
190    $(document).bind('DOMNodeInserted', function(event) {
191        var insertedEl = $(event.target);
192        if (!insertedEl.is(nwaAddToCartSelector) && insertedEl.find(nwaAddToCartSelector).length == 0) return;
193        if (rescanTimer != null) {
194            clearTimeout(rescanTimer);
195        }
196        rescanTimer = setTimeout(rescanPage.bind(null, check_product_ids), 1000);
197    });
198});