bootstrap-button.js

/* ============================================================
 * bootstrap-button.js v2.0.2
 * http://twitter.github.com/bootstrap/javascript.html#buttons
 * ============================================================
 * 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"

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

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

  Button.prototype = {

      constructor: Button

    , 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)
      }

    , toggle: function () {
        var $parent = this.$element.parent('[data-toggle="buttons-radio"]')

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

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

  }


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

  $.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 DATA-API
  * =============== */

  $(function () {
    $('body').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 );