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

 * Bootstrap: modal.js v3.0.0

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

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

 * 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";

  // MODAL CLASS DEFINITION

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

  var Modal = function (element, options) {

    this.options   = options

    this.$element  = $(element)

    this.$backdrop =

    this.isShown   = null

    if (this.options.remote) this.$element.load(this.options.remote)

  }

  Modal.DEFAULTS = {

      backdrop: true

    , keyboard: true

    , show: true

  }

  Modal.prototype.toggle = function (_relatedTarget) {

    return this[!this.isShown ? 'show' : 'hide'](_relatedTarget)

  }

  Modal.prototype.show = function (_relatedTarget) {

    var that = this

    var e    = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })

    this.$element.trigger(e)

    if (this.isShown || e.isDefaultPrevented()) return

    this.isShown = true

    this.escape()

    this.$element.on('click.dismiss.modal', '[data-dismiss="modal"]', $.proxy(this.hide, this))

    this.backdrop(function () {

      var transition = $.support.transition && that.$element.hasClass('fade')

      if (!that.$element.parent().length) {

        that.$element.appendTo(document.body) // don't move modals dom position

      }

      that.$element.show()

      if (transition) {

        that.$element[0].offsetWidth // force reflow

      }

      that.$element

        .addClass('in')

        .attr('aria-hidden', false)

      that.enforceFocus()

      var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })

      transition ?

        that.$element.find('.modal-dialog') // wait for modal to slide in

          .one($.support.transition.end, function () {

            that.$element.focus().trigger(e)

          })

          .emulateTransitionEnd(300) :

        that.$element.focus().trigger(e)

    })

  }

  Modal.prototype.hide = function (e) {

    if (e) e.preventDefault()

    e = $.Event('hide.bs.modal')

    this.$element.trigger(e)

    if (!this.isShown || e.isDefaultPrevented()) return

    this.isShown = false

    this.escape()

    $(document).off('focusin.bs.modal')

    this.$element

      .removeClass('in')

      .attr('aria-hidden', true)

      .off('click.dismiss.modal')

    $.support.transition && this.$element.hasClass('fade') ?

      this.$element

        .one($.support.transition.end, $.proxy(this.hideModal, this))

        .emulateTransitionEnd(300) :

      this.hideModal()

  }

  Modal.prototype.enforceFocus = function () {

    $(document)

      .off('focusin.bs.modal') // guard against infinite focus loop

      .on('focusin.bs.modal', $.proxy(function (e) {

        if (this.$element[0] !== e.target && !this.$element.has(e.target).length) {

          this.$element.focus()

        }

      }, this))

  }

  Modal.prototype.escape = function () {

    if (this.isShown && this.options.keyboard) {

      this.$element.on('keyup.dismiss.bs.modal', $.proxy(function (e) {

        e.which == 27 && this.hide()

      }, this))

    } else if (!this.isShown) {

      this.$element.off('keyup.dismiss.bs.modal')

    }

  }

  Modal.prototype.hideModal = function () {

    var that = this

    this.$element.hide()

    this.backdrop(function () {

      that.removeBackdrop()

      that.$element.trigger('hidden.bs.modal')

    })

  }

  Modal.prototype.removeBackdrop = function () {

    this.$backdrop && this.$backdrop.remove()

    this.$backdrop = null

  }

  Modal.prototype.backdrop = function (callback) {

    var that    = this

    var animate = this.$element.hasClass('fade') ? 'fade' : ''

    if (this.isShown && this.options.backdrop) {

      var doAnimate = $.support.transition && animate

      this.$backdrop = $('<div class="modal-backdrop ' + animate + '" />')

        .appendTo(document.body)

      this.$element.on('click.dismiss.modal', $.proxy(function (e) {

        if (e.target !== e.currentTarget) return

        this.options.backdrop == 'static'

          ? this.$element[0].focus.call(this.$element[0])

          : this.hide.call(this)

      }, this))

      if (doAnimate) this.$backdrop[0].offsetWidth // force reflow

      this.$backdrop.addClass('in')

      if (!callback) return

      doAnimate ?

        this.$backdrop

          .one($.support.transition.end, callback)

          .emulateTransitionEnd(150) :

        callback()

    } else if (!this.isShown && this.$backdrop) {

      this.$backdrop.removeClass('in')

      $.support.transition && this.$element.hasClass('fade')?

        this.$backdrop

          .one($.support.transition.end, callback)

          .emulateTransitionEnd(150) :

        callback()

    } else if (callback) {

      callback()

    }

  }

  // MODAL PLUGIN DEFINITION

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

  var old = $.fn.modal

  $.fn.modal = function (option, _relatedTarget) {

    return this.each(function () {

      var $this   = $(this)

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

      var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)

      if (!data) $this.data('bs.modal', (data = new Modal(this, options)))

      if (typeof option == 'string') data[option](_relatedTarget)

      else if (options.show) data.show(_relatedTarget)

    })

  }

  $.fn.modal.Constructor = Modal

  // MODAL NO CONFLICT

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

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

    $.fn.modal = old

    return this

  }

  // MODAL DATA-API

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

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

    var $this   = $(this)

    var href    = $this.attr('href')

    var $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) //strip for ie7

    var option  = $target.data('modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())

    e.preventDefault()

    $target

      .modal(option, this)

      .one('hide', function () {

        $this.is(':visible') && $this.focus()

      })

  })

  $(document)

    .on('show.bs.modal',  '.modal', function () { $(document.body).addClass('modal-open') })

    .on('hidden.bs.modal', '.modal', function () { $(document.body).removeClass('modal-open') })

}(window.jQuery);