1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/bootstrap-source/bootstrap-3.0.3/js/affix.js	Fri Dec 20 22:49:16 2013 +0100
     1.3 @@ -0,0 +1,126 @@
     1.4 +/* ========================================================================
     1.5 + * Bootstrap: affix.js v3.0.3
     1.6 + * http://getbootstrap.com/javascript/#affix
     1.7 + * ========================================================================
     1.8 + * Copyright 2013 Twitter, Inc.
     1.9 + *
    1.10 + * Licensed under the Apache License, Version 2.0 (the "License");
    1.11 + * you may not use this file except in compliance with the License.
    1.12 + * You may obtain a copy of the License at
    1.13 + *
    1.14 + * http://www.apache.org/licenses/LICENSE-2.0
    1.15 + *
    1.16 + * Unless required by applicable law or agreed to in writing, software
    1.17 + * distributed under the License is distributed on an "AS IS" BASIS,
    1.18 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    1.19 + * See the License for the specific language governing permissions and
    1.20 + * limitations under the License.
    1.21 + * ======================================================================== */
    1.22 +
    1.23 +
    1.24 ++function ($) { "use strict";
    1.25 +
    1.26 +  // AFFIX CLASS DEFINITION
    1.27 +  // ======================
    1.28 +
    1.29 +  var Affix = function (element, options) {
    1.30 +    this.options = $.extend({}, Affix.DEFAULTS, options)
    1.31 +    this.$window = $(window)
    1.32 +      .on('scroll.bs.affix.data-api', $.proxy(this.checkPosition, this))
    1.33 +      .on('click.bs.affix.data-api',  $.proxy(this.checkPositionWithEventLoop, this))
    1.34 +
    1.35 +    this.$element = $(element)
    1.36 +    this.affixed  =
    1.37 +    this.unpin    = null
    1.38 +
    1.39 +    this.checkPosition()
    1.40 +  }
    1.41 +
    1.42 +  Affix.RESET = 'affix affix-top affix-bottom'
    1.43 +
    1.44 +  Affix.DEFAULTS = {
    1.45 +    offset: 0
    1.46 +  }
    1.47 +
    1.48 +  Affix.prototype.checkPositionWithEventLoop = function () {
    1.49 +    setTimeout($.proxy(this.checkPosition, this), 1)
    1.50 +  }
    1.51 +
    1.52 +  Affix.prototype.checkPosition = function () {
    1.53 +    if (!this.$element.is(':visible')) return
    1.54 +
    1.55 +    var scrollHeight = $(document).height()
    1.56 +    var scrollTop    = this.$window.scrollTop()
    1.57 +    var position     = this.$element.offset()
    1.58 +    var offset       = this.options.offset
    1.59 +    var offsetTop    = offset.top
    1.60 +    var offsetBottom = offset.bottom
    1.61 +
    1.62 +    if (typeof offset != 'object')         offsetBottom = offsetTop = offset
    1.63 +    if (typeof offsetTop == 'function')    offsetTop    = offset.top()
    1.64 +    if (typeof offsetBottom == 'function') offsetBottom = offset.bottom()
    1.65 +
    1.66 +    var affix = this.unpin   != null && (scrollTop + this.unpin <= position.top) ? false :
    1.67 +                offsetBottom != null && (position.top + this.$element.height() >= scrollHeight - offsetBottom) ? 'bottom' :
    1.68 +                offsetTop    != null && (scrollTop <= offsetTop) ? 'top' : false
    1.69 +
    1.70 +    if (this.affixed === affix) return
    1.71 +    if (this.unpin) this.$element.css('top', '')
    1.72 +
    1.73 +    this.affixed = affix
    1.74 +    this.unpin   = affix == 'bottom' ? position.top - scrollTop : null
    1.75 +
    1.76 +    this.$element.removeClass(Affix.RESET).addClass('affix' + (affix ? '-' + affix : ''))
    1.77 +
    1.78 +    if (affix == 'bottom') {
    1.79 +      this.$element.offset({ top: document.body.offsetHeight - offsetBottom - this.$element.height() })
    1.80 +    }
    1.81 +  }
    1.82 +
    1.83 +
    1.84 +  // AFFIX PLUGIN DEFINITION
    1.85 +  // =======================
    1.86 +
    1.87 +  var old = $.fn.affix
    1.88 +
    1.89 +  $.fn.affix = function (option) {
    1.90 +    return this.each(function () {
    1.91 +      var $this   = $(this)
    1.92 +      var data    = $this.data('bs.affix')
    1.93 +      var options = typeof option == 'object' && option
    1.94 +
    1.95 +      if (!data) $this.data('bs.affix', (data = new Affix(this, options)))
    1.96 +      if (typeof option == 'string') data[option]()
    1.97 +    })
    1.98 +  }
    1.99 +
   1.100 +  $.fn.affix.Constructor = Affix
   1.101 +
   1.102 +
   1.103 +  // AFFIX NO CONFLICT
   1.104 +  // =================
   1.105 +
   1.106 +  $.fn.affix.noConflict = function () {
   1.107 +    $.fn.affix = old
   1.108 +    return this
   1.109 +  }
   1.110 +
   1.111 +
   1.112 +  // AFFIX DATA-API
   1.113 +  // ==============
   1.114 +
   1.115 +  $(window).on('load', function () {
   1.116 +    $('[data-spy="affix"]').each(function () {
   1.117 +      var $spy = $(this)
   1.118 +      var data = $spy.data()
   1.119 +
   1.120 +      data.offset = data.offset || {}
   1.121 +
   1.122 +      if (data.offsetBottom) data.offset.bottom = data.offsetBottom
   1.123 +      if (data.offsetTop)    data.offset.top    = data.offsetTop
   1.124 +
   1.125 +      $spy.affix(data)
   1.126 +    })
   1.127 +  })
   1.128 +
   1.129 +}(jQuery);