https://www.ametekinstruments.it/-/media/base-themes/searchtheme/scripts/component-search-sort.js?thm=1

1XA.component.search.sort = (function ($, document) {
2
3    var api = {},
4        initialized = false,
5        queryModel,
6        queryParameters,
7        getSignature;
8
9    var SortModel = Backbone.Model.extend({
10        defaults: {
11            updateOrder: false,
12            sig: []
13        }
14    });
15
16    var SortView = XA.component.search.baseView.extend({
17        initialize : function () {
18            var dataProperties = this.$el.data();
19
20            if (this.model) {
21                this.model.set("sig", this.translateSignatures(dataProperties.properties.sig, "o"));
22            }
23
24            XA.component.search.vent.on("hashChanged", this.updateComponent.bind(this));
25        },
26        events : {
27            'click .sort-results-group a': 'sortSearchResultsLink',
28            'change select': 'sortSearchResultsSelect'
29        },
30        sortSearchResultsLink: function (event) {
31            event.preventDefault();
32            this.sortSearchResults($(event.currentTarget).parent());
33        },
34        sortSearchResultsSelect: function (event) {
35            this.sortSearchResults($(event.currentTarget[event.currentTarget.options.selectedIndex]));
36        },
37        sortSearchResults: function (element) {
38            var attributes = element.data(),
39                sig = this.model.get("sig"),
40                attrString = attributes.facet + ',' + attributes.direction;
41
42            if (attributes.direction !== "") {
43                queryParameters.updateHash(this.updateSignaturesHash(sig, attrString, {}));
44            } else {
45                queryParameters.updateHash(this.updateSignaturesHash(sig, "", {}));
46            }
47        },
48        updateComponent: function (hash) {
49            var optionToSelect, sortData,
50                sig = this.model.get("sig"),
51                i;
52
53            for (i = 0; i < sig.length; i++) {
54                if (hash.hasOwnProperty(sig[i])){
55                    sortData = hash[sig[i]].split(',');
56                    optionToSelect = this.$el.find("[data-facet='" + sortData[0] + "'][data-direction='" + sortData[1] + "']");
57                } else {
58                    optionToSelect = this.$el.find("[data-facet][data-direction]:first");
59                }
60            }        
61
62            this.$el.find("[data-facet][data-direction]").removeAttr("selected");
63            optionToSelect.attr("selected", "selected");
64        }
65    });
66
67    api.init = function () {
68        if ($("body").hasClass("on-page-editor") || initialized){
69            return;
70        }
71
72        queryModel = XA.component.search.query;
73        queryParameters = XA.component.search.parameters;
74
75        var sort = $(".sort-results");
76        _.each(sort, function (elem) {
77            var sortModel = new SortModel(),
78                view = new SortView({el: $(elem), model: sortModel});
79        });
80
81        initialzied = true;
82    };
83
84    api.getFirstSortingOption = function(signature) {
85        var sortResults = $(".sort-results"),
86            firstSort,
87            attributes,
88            attrString,
89            thisSignatures,
90            data,
91            i, j;
92
93        for (i = 0; i < sortResults.length; i++) {        
94            if (typeof(signature) !== "undefined") {
95                data = $(sortResults[i]).data();
96                thisSignatures = data.properties.sig.split(',');
97
98                for (j = 0; j < thisSignatures.length; j++) {
99                    if (thisSignatures[j] === signature) {
100                        firstSort = $(sortResults[i]).find("[data-facet][data-direction]");
101                        attributes = firstSort.data();
102                        if (attributes.direction !== "") {
103                            attrString = attributes.facet + ',' + attributes.direction;
104                            return attrString;
105                        }
106                    }
107                }
108            }
109        }
110
111        return -1;
112    };
113
114    return api;
115
116}(jQuery, document));
117
118XA.register('searchSort', XA.component.search.sort);