bootstrap.button.js

/**
* courtesy of https://github.com/twitter/bootstrap/issues/4287#issuecomment-8090869
*/

/* ============================================================
 * bootstrap-button.js v2.3.2
 * http://getbootstrap.com/2.3.2/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"; // jshint ;_;


 /* BUTTON PUBLIC CLASS DEFINITION
  * ============================== */

  var Button = function (element, options) {
    this.$element = $(element)
    this.options = $.extend({}, $.fn.button.defaults, options)
  }

  Button.prototype.setState = function (state) {
    var d = 'disabled'
      , $el = this.$element
      , data = $el.data()
      , val = $el.is('input') ? 'val' : 'html'

    state = state + 'Text'
    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-radio"]')

    $parent && $parent
      .find('.active')
      .removeClass('active')

    this.$element.toggleClass('active')
    this.$element.trigger('state_change')
  }


 /* BUTTON PLUGIN DEFINITION
  * ======================== */

  var old = $.fn.button

  $.fn.button = function (option) {
    return this.each(function () {
      var $this = $(this)
        , data = $this.data('button')
        , options = typeof option == 'object' && option
      if (!data) $this.data('button', (data = new Button(this, options)))
      if (option == 'toggle') data.toggle()
      else if (option) data.setState(option)
    })
  }

  $.fn.button.defaults = {
    loadingText: 'loading...'
  }

  $.fn.button.Constructor = Button


 /* BUTTON NO CONFLICT
  * ================== */

  $.fn.button.noConflict = function () {
    $.fn.button = old
    return this
  }


 /* BUTTON DATA-API
  * =============== */

  $(document).on('click.button.data-api', '[data-toggle^=button]', function (e) {
    var $btn = $(e.target)
    if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
    $btn.button('toggle')
  })

}(window.jQuery);