redact
[contractdashboard.git] / js / bootstrap-dropdown.js
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/* ============================================================
 * bootstrap-dropdown.js v2.1.0
 * http://twitter.github.com/bootstrap/javascript.html#dropdowns
 * ============================================================
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============================================================ */
 
 
!function ($) {
 
  "use strict"; // jshint ;_;
 
 
 /* DROPDOWN CLASS DEFINITION
  * ========================= */
 
  var toggle = '[data-toggle=dropdown]'
    , Dropdown = function (element) {
        var $el = $(element).on('click.dropdown.data-api', this.toggle)
        $('html').on('click.dropdown.data-api', function () {
          $el.parent().removeClass('open')
        })
      }
 
  Dropdown.prototype = {
 
    constructor: Dropdown
 
  , toggle: function (e) {
      var $this = $(this)
        , $parent
        , isActive
 
      if ($this.is('.disabled, :disabled')) return
 
      $parent = getParent($this)
 
      isActive = $parent.hasClass('open')
 
      clearMenus()
 
      if (!isActive) {
        $parent.toggleClass('open')
        $this.focus()
      }
 
      return false
    }
 
  , keydown: function (e) {
      var $this
        , $items
        , $active
        , $parent
        , isActive
        , index
 
      if (!/(38|40|27)/.test(e.keyCode)) return
 
      $this = $(this)
 
      e.preventDefault()
      e.stopPropagation()
 
      if ($this.is('.disabled, :disabled')) return
 
      $parent = getParent($this)
 
      isActive = $parent.hasClass('open')
 
      if (!isActive || (isActive && e.keyCode == 27)) return $this.click()
 
      $items = $('[role=menu] li:not(.divider) a', $parent)
 
      if (!$items.length) return
 
      index = $items.index($items.filter(':focus'))
 
      if (e.keyCode == 38 && index > 0) index--                                        // up
      if (e.keyCode == 40 && index < $items.length - 1) index++                        // down
      if (!~index) index = 0
 
      $items
        .eq(index)
        .focus()
    }
 
  }
 
  function clearMenus() {
    getParent($(toggle))
      .removeClass('open')
  }
 
  function getParent($this) {
    var selector = $this.attr('data-target')
      , $parent
 
    if (!selector) {
      selector = $this.attr('href')
      selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
    }
 
    $parent = $(selector)
    $parent.length || ($parent = $this.parent())
 
    return $parent
  }
 
 
  /* DROPDOWN PLUGIN DEFINITION
   * ========================== */
 
  $.fn.dropdown = function (option) {
    return this.each(function () {
      var $this = $(this)
        , data = $this.data('dropdown')
      if (!data) $this.data('dropdown', (data = new Dropdown(this)))
      if (typeof option == 'string') data[option].call($this)
    })
  }
 
  $.fn.dropdown.Constructor = Dropdown
 
 
  /* APPLY TO STANDARD DROPDOWN ELEMENTS
   * =================================== */
 
  $(function () {
    $('html')
      .on('click.dropdown.data-api touchstart.dropdown.data-api', clearMenus)
    $('body')
      .on('click.dropdown touchstart.dropdown.data-api', '.dropdown', function (e) { e.stopPropagation() })
      .on('click.dropdown.data-api touchstart.dropdown.data-api'  , toggle, Dropdown.prototype.toggle)
      .on('keydown.dropdown.data-api touchstart.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown)
  })
 
}(window.jQuery);