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assets/js/bootstrap-dropdown.js

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+/* ============================================================
+ * bootstrap-dropdown.js v2.3.1
+ * 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)) {
+        if (e.which == 27) $parent.find(toggle).focus()
+        return $this.click()
+      }
+
+      $items = $('[role=menu] li:not(.divider):visible 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() {
+    $(toggle).each(function () {
+      getParent($(this)).removeClass('open')
+    })
+  }
+
+  function getParent($this) {
+    var selector = $this.attr('data-target')
+      , $parent
+
+    if (!selector) {
+      selector = $this.attr('href')
+      selector = selector && /#/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
+    }
+
+    $parent = selector && $(selector)
+
+    if (!$parent || !$parent.length) $parent = $this.parent()
+
+    return $parent
+  }
+
+
+  /* DROPDOWN PLUGIN DEFINITION
+   * ========================== */
+
+  var old = $.fn.dropdown
+
+  $.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
+
+
+ /* DROPDOWN NO CONFLICT
+  * ==================== */
+
+  $.fn.dropdown.noConflict = function () {
+    $.fn.dropdown = old
+    return this
+  }
+
+
+  /* APPLY TO STANDARD DROPDOWN ELEMENTS
+   * =================================== */
+
+  $(document)
+    .on('click.dropdown.data-api', clearMenus)
+    .on('click.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
+    .on('click.dropdown-menu', function (e) { e.stopPropagation() })
+    .on('click.dropdown.data-api'  , toggle, Dropdown.prototype.toggle)
+    .on('keydown.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown)
+
+}(window.jQuery);