https://textilescusco.org/assets-web/js/nice-select.js

1/*  jQuery Nice Select - v1.1.0
2    https://github.com/hernansartorio/jquery-nice-select
3    Made by Hernán Sartorio  */
4 
5(function($) {
6
7  $.fn.niceSelect = function(method) {
8    
9    // Methods
10    if (typeof method == 'string') {      
11      if (method == 'update') {
12        this.each(function() {
13          var $select = $(this);
14          var $dropdown = $(this).next('.nice-select');
15          var open = $dropdown.hasClass('open');
16          
17          if ($dropdown.length) {
18            $dropdown.remove();
19            create_nice_select($select);
20            
21            if (open) {
22              $select.next().trigger('click');
23            }
24          }
25        });
26      } else if (method == 'destroy') {
27        this.each(function() {
28          var $select = $(this);
29          var $dropdown = $(this).next('.nice-select');
30          
31          if ($dropdown.length) {
32            $dropdown.remove();
33            $select.css('display', '');
34          }
35        });
36        if ($('.nice-select').length == 0) {
37          $(document).off('.nice_select');
38        }
39      } else {
40        console.log('Method "' + method + '" does not exist.')
41      }
42      return this;
43    }
44      
45    // Hide native select
46    this.hide();
47    
48    // Create custom markup
49    this.each(function() {
50      var $select = $(this);
51      
52      if (!$select.next().hasClass('nice-select')) {
53        create_nice_select($select);
54      }
55    });
56    
57    function create_nice_select($select) {
58      $select.after($('<div></div>')
59        .addClass('nice-select')
60        .addClass($select.attr('class') || '')
61        .addClass($select.attr('disabled') ? 'disabled' : '')
62        .attr('tabindex', $select.attr('disabled') ? null : '0')
63        .html('<span class="current"></span><ul class="list"></ul>')
64      );
65        
66      var $dropdown = $select.next();
67      var $options = $select.find('option');
68      var $selected = $select.find('option:selected');
69      
70      $dropdown.find('.current').html($selected.data('display') || $selected.text());
71      
72      $options.each(function(i) {
73        var $option = $(this);
74        var display = $option.data('display');
75
76        $dropdown.find('ul').append($('<li></li>')
77          .attr('data-value', $option.val())
78          .attr('data-display', (display || null))
79          .addClass('option' +
80            ($option.is(':selected') ? ' selected' : '') +
81            ($option.is(':disabled') ? ' disabled' : ''))
82          .html($option.text())
83        );
84      });
85    }
86    
87    /* Event listeners */
88    
89    // Unbind existing events in case that the plugin has been initialized before
90    $(document).off('.nice_select');
91    
92    // Open/close
93    $(document).on('click.nice_select', '.nice-select', function(event) {
94      var $dropdown = $(this);
95      
96      $('.nice-select').not($dropdown).removeClass('open');
97      $dropdown.toggleClass('open');
98      
99      if ($dropdown.hasClass('open')) {
100        $dropdown.find('.option');  
101        $dropdown.find('.focus').removeClass('focus');
102        $dropdown.find('.selected').addClass('focus');
103      } else {
104        $dropdown.focus();
105      }
106    });
107    
108    // Close when clicking outside
109    $(document).on('click.nice_select', function(event) {
110      if ($(event.target).closest('.nice-select').length === 0) {
111        $('.nice-select').removeClass('open').find('.option');  
112      }
113    });
114    
115    // Option click
116    $(document).on('click.nice_select', '.nice-select .option:not(.disabled)', function(event) {
117      var $option = $(this);
118      var $dropdown = $option.closest('.nice-select');
119      
120      $dropdown.find('.selected').removeClass('selected');
121      $option.addClass('selected');
122      
123      var text = $option.data('display') || $option.text();
124      $dropdown.find('.current').text(text);
125      
126      $dropdown.prev('select').val($option.data('value')).trigger('change');
127    });
128
129    // Keyboard events
130    $(document).on('keydown.nice_select', '.nice-select', function(event) {    
131      var $dropdown = $(this);

132      var $focused_option = $($dropdown.find('.focus') || $dropdown.find('.list .option.selected'));
133      
134      // Space or Enter
135      if (event.keyCode == 32 || event.keyCode == 13) {
136        if ($dropdown.hasClass('open')) {
137          $focused_option.trigger('click');
138        } else {
139          $dropdown.trigger('click');
140        }
141        return false;
142      // Down
143      } else if (event.keyCode == 40) {
144        if (!$dropdown.hasClass('open')) {
145          $dropdown.trigger('click');
146        } else {
147          var $next = $focused_option.nextAll('.option:not(.disabled)').first();
148          if ($next.length > 0) {
149            $dropdown.find('.focus').removeClass('focus');
150            $next.addClass('focus');
151          }
152        }
153        return false;
154      // Up
155      } else if (event.keyCode == 38) {
156        if (!$dropdown.hasClass('open')) {
157          $dropdown.trigger('click');
158        } else {
159          var $prev = $focused_option.prevAll('.option:not(.disabled)').first();
160          if ($prev.length > 0) {
161            $dropdown.find('.focus').removeClass('focus');
162            $prev.addClass('focus');
163          }
164        }
165        return false;
166      // Esc
167      } else if (event.keyCode == 27) {
168        if ($dropdown.hasClass('open')) {
169          $dropdown.trigger('click');
170        }
171      // Tab
172      } else if (event.keyCode == 9) {
173        if ($dropdown.hasClass('open')) {
174          return false;
175        }
176      }
177    });
178
179    // Detect CSS pointer-events support, for IE <= 10. From Modernizr.
180    var style = document.createElement('a').style;
181    style.cssText = 'pointer-events:auto';
182    if (style.pointerEvents !== 'auto') {
183      $('html').addClass('no-csspointerevents');
184    }
185    
186    return this;
187
188  };
189
190}(jQuery));