/* ========================================================================

 * Bootstrap: button.js v3.0.0

 * http://twbs.github.com/bootstrap/javascript.html#buttons

 * ========================================================================

 * Copyright 2013 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";

  // BUTTON PUBLIC CLASS DEFINITION

  // ==============================

  var Button = function (element, options) {

    this.$element = $(element)

    this.options  = $.extend({}, Button.DEFAULTS, options)

  }

  Button.DEFAULTS = {

    loadingText: 'loading...'

  }

  Button.prototype.setState = function (state) {

    var d    = 'disabled'

    var $el  = this.$element

    var val  = $el.is('input') ? 'val' : 'html'

    var data = $el.data()

    state = state + 'Text'

    if (!data.resetText) $el.data('resetText', $el[val]())

    $el[val](data[state] || this.options[state])

    // push to event loop to allow forms to submit

    setTimeout(function () {

      state == 'loadingText' ?

        $el.addClass(d).attr(d, d) :

        $el.removeClass(d).removeAttr(d);

    }, 0)

  }

  Button.prototype.toggle = function () {

    var $parent = this.$element.closest('[data-toggle="buttons"]')

    if ($parent.length) {

      var $input = this.$element.find('input')

        .prop('checked', !this.$element.hasClass('active'))

        .trigger('change')

      if ($input.prop('type') === 'radio') $parent.find('.active').removeClass('active')

    }

    this.$element.toggleClass('active')

  }

  // BUTTON PLUGIN DEFINITION

  // ========================

  var old = $.fn.button

  $.fn.button = function (option) {

    return this.each(function () {

      var $this   = $(this)

      var data    = $this.data('bs.button')

      var options = typeof option == 'object' && option

      if (!data) $this.data('bs.button', (data = new Button(this, options)))

      if (option == 'toggle') data.toggle()

      else if (option) data.setState(option)

    })

  }

  $.fn.button.Constructor = Button

  // BUTTON NO CONFLICT

  // ==================

  $.fn.button.noConflict = function () {

    $.fn.button = old

    return this

  }

  // BUTTON DATA-API

  // ===============

  $(document).on('click.bs.button.data-api', '[data-toggle^=button]', function (e) {

    var $btn = $(e.target)

    if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')

    $btn.button('toggle')

    e.preventDefault()

  })

}(window.jQuery);