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   1  /* ============================================================
   2   * bootstrap-dropdown.js v2.0.1
   3   * http://twitter.github.com/bootstrap/javascript.html#dropdowns
   4   * ============================================================
   5   * Copyright 2012 Twitter, Inc.
   6   *
   7   * Licensed under the Apache License, Version 2.0 (the "License");
   8   * you may not use this file except in compliance with the License.
   9   * You may obtain a copy of the License at
  10   *
  11   * http://www.apache.org/licenses/LICENSE-2.0
  12   *
  13   * Unless required by applicable law or agreed to in writing, software
  14   * distributed under the License is distributed on an "AS IS" BASIS,
  15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16   * See the License for the specific language governing permissions and
  17   * limitations under the License.
  18   * ============================================================ */
  19  
  20  
  21  !function( $ ){
  22  
  23    "use strict"
  24  
  25   /* DROPDOWN CLASS DEFINITION
  26    * ========================= */
  27  
  28    var toggle = '[data-toggle="dropdown"]'
  29      , Dropdown = function ( element ) {
  30          var $el = $(element).on('click.dropdown.data-api', this.toggle)
  31          $('html').on('click.dropdown.data-api', function () {
  32            $el.parent().removeClass('open')
  33          })
  34        }
  35  
  36    Dropdown.prototype = {
  37  
  38      constructor: Dropdown
  39  
  40    , toggle: function ( e ) {
  41        var $this = $(this)
  42          , selector = $this.attr('data-target')
  43          , $parent
  44          , isActive
  45  
  46        if (!selector) {
  47          selector = $this.attr('href')
  48          selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
  49        }
  50  
  51        $parent = $(selector)
  52        $parent.length || ($parent = $this.parent())
  53  
  54        isActive = $parent.hasClass('open')
  55  
  56        clearMenus()
  57        !isActive && $parent.toggleClass('open')
  58  
  59        return false
  60      }
  61  
  62    }
  63  
  64    function clearMenus() {
  65      $(toggle).parent().removeClass('open')
  66    }
  67  
  68  
  69    /* DROPDOWN PLUGIN DEFINITION
  70     * ========================== */
  71  
  72    $.fn.dropdown = function ( option ) {
  73      return this.each(function () {
  74        var $this = $(this)
  75          , data = $this.data('dropdown')
  76        if (!data) $this.data('dropdown', (data = new Dropdown(this)))
  77        if (typeof option == 'string') data[option].call($this)
  78      })
  79    }
  80  
  81    $.fn.dropdown.Constructor = Dropdown
  82  
  83  
  84    /* APPLY TO STANDARD DROPDOWN ELEMENTS
  85     * =================================== */
  86  
  87    $(function () {
  88      $('html').on('click.dropdown.data-api', clearMenus)
  89      $('body').on('click.dropdown.data-api', toggle, Dropdown.prototype.toggle)
  90    })
  91  
  92  }( window.jQuery );