https://www.top-trails-of-germany.de/typo3conf/ext/swe_toptrails_s…/JavaScript/swetrackfilter.js?1773754026

1this.swetrackfilter = {
2
3  create: function(self, onupdate_f){
4
5    var __onupdate = null;
6
7    var __get_selected_categories = function(){
8      var selected_cats = [];
9
10      Array.prototype.forEach.call(document.querySelectorAll('.track-category-checkbox'), function(checkbox, i){
11        if(swebase.dom.is_checkbox(checkbox)){
12          if(checkbox.checked === true){
13            if(checkbox.hasAttribute('data-category')){
14              var cat = checkbox.getAttribute('data-category');
15
16              if(selected_cats.indexOf(cat) === -1){
17                selected_cats.push(cat);
18              }
19            }
20          }
21        }
22      });
23      return selected_cats;
24    };
25
26    var __show_all = function(){
27      Array.prototype.forEach.call(document.querySelectorAll('.track'), function(track_node, i){
28        track_node.setAttribute('data-visible', '1');
29      });
30      return self;
31    };
32
33    self.update = function(){
34      var selected_cats = __get_selected_categories();
35
36      if(selected_cats.length > 0){
37        Array.prototype.forEach.call(document.querySelectorAll('.track'), function(track_node, i){
38          var track_cats = [];
39
40          if(track_node.hasAttribute('data-categories')){
41            track_cats = swebase.string.split_ws(track_node.getAttribute('data-categories'));
42
43            var intersection = selected_cats.filter(function(_cat){
44              return (track_cats.indexOf(_cat) !== -1);
45            });
46            if(intersection.length > 0){
47              track_node.setAttribute('data-visible', '1');
48
49            } else {
50              track_node.setAttribute('data-visible', '');
51            }
52          }
53        });
54
55      } else {
56        __show_all();
57      }
58      if(typeof __onupdate === 'function'){
59        __onupdate();
60      }
61      return self;
62    };
63
64    // =========================================================================
65
66    var __is_window_global = function(ns){
67      for(var name in window) {
68        if(name === ns){
69          return true;
70        }
71      }
72      return false;
73    };
74
75    var __check = function(){
76      var required = ['swebase'];
77      var not_found = [];
78
79      for(var i = 0; i < required.length; ++i){
80        if(!__is_window_global(required[i])){
81          not_found.push(required[i]);
82        }
83      }
84      if(not_found.length > 0){
85        throw '[swetrackfilter.js] NAMESPACES NOT FOUND: '+not_found.join(', ');
86      }
87      return self;
88    };
89
90    // ===========================================================================
91
92    __check();
93
94    Array.prototype.forEach.call(document.querySelectorAll('.track-category-checkbox'), function(checkbox, i){
95      if(swebase.dom.is_checkbox(checkbox)){
96        checkbox.addEventListener('change', function(changeEvent){
97          self.update();
98        });
99      }
100    });
101    __onupdate = onupdate_f;
102    return self;
103  }
104};