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Filename : validator.js
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/*!
 * Validator v0.11.9 for Bootstrap 3, by @1000hz
 * Copyright 2017 Cina Saffary
 * Licensed under http://opensource.org/licenses/MIT
 *
 * https://github.com/1000hz/bootstrap-validator
 */

+function ($) {
  'use strict';

  // VALIDATOR CLASS DEFINITION
  // ==========================

  function getValue($el) {
    return $el.is('[type="checkbox"]') ? $el.prop('checked')                                     :
           $el.is('[type="radio"]')    ? !!$('[name="' + $el.attr('name') + '"]:checked').length :
           $el.is('select[multiple]')  ? ($el.val() || []).length                                :
                                         $el.val()
  }

  var Validator = function (element, options) {
    this.options    = options
    this.validators = $.extend({}, Validator.VALIDATORS, options.custom)
    this.$element   = $(element)
    this.$btn       = $('button[type="submit"], input[type="submit"]')
                        .filter('[form="' + this.$element.attr('id') + '"]')
                        .add(this.$element.find('input[type="submit"], button[type="submit"]'))

    this.update()

    this.$element.on('input.bs.validator change.bs.validator focusout.bs.validator', $.proxy(this.onInput, this))
    this.$element.on('submit.bs.validator', $.proxy(this.onSubmit, this))
    this.$element.on('reset.bs.validator', $.proxy(this.reset, this))

    this.$element.find('[data-match]').each(function () {
      var $this  = $(this)
      var target = $this.attr('data-match')

      $(target).on('input.bs.validator', function (e) {
        getValue($this) && $this.trigger('input.bs.validator')
      })
    })

    // run validators for fields with values, but don't clobber server-side errors
    this.$inputs.filter(function () {
      return getValue($(this)) && !$(this).closest('.has-error').length
    }).trigger('focusout')

    this.$element.attr('novalidate', true) // disable automatic native validation
  }

  Validator.VERSION = '0.11.9'

  Validator.INPUT_SELECTOR = ':input:not([type="hidden"], [type="submit"], [type="reset"], button)'

  Validator.FOCUS_OFFSET = 20

  Validator.DEFAULTS = {
    delay: 500,
    html: false,
    disable: true,
    focus: true,
    custom: {},
    errors: {
      match: 'Does not match',
      minlength: 'Not long enough'
    },
    feedback: {
      success: 'glyphicon-ok',
      error: 'glyphicon-remove'
    }
  }

  Validator.VALIDATORS = {
    'native': function ($el) {
      var el = $el[0]
      if (el.checkValidity) {
        return !el.checkValidity() && !el.validity.valid && (el.validationMessage || "error!")
      }
    },
    'match': function ($el) {
      var target = $el.attr('data-match')
      return $el.val() !== $(target).val() && Validator.DEFAULTS.errors.match
    },
    'minlength': function ($el) {
      var minlength = $el.attr('data-minlength')
      return $el.val().length < minlength && Validator.DEFAULTS.errors.minlength
    }
  }

  Validator.prototype.update = function () {
    var self = this

    this.$inputs = this.$element.find(Validator.INPUT_SELECTOR)
      .add(this.$element.find('[data-validate="true"]'))
      .not(this.$element.find('[data-validate="false"]')
        .each(function () { self.clearErrors($(this)) })
      )

    this.toggleSubmit()

    return this
  }

  Validator.prototype.onInput = function (e) {
    var self        = this
    var $el         = $(e.target)
    var deferErrors = e.type !== 'focusout'

    if (!this.$inputs.is($el)) return

    this.validateInput($el, deferErrors).done(function () {
      self.toggleSubmit()
    })
  }

  Validator.prototype.validateInput = function ($el, deferErrors) {
    var value      = getValue($el)
    var prevErrors = $el.data('bs.validator.errors')

    if ($el.is('[type="radio"]')) $el = this.$element.find('input[name="' + $el.attr('name') + '"]')

    var e = $.Event('validate.bs.validator', {relatedTarget: $el[0]})
    this.$element.trigger(e)
    if (e.isDefaultPrevented()) return

    var self = this

    return this.runValidators($el).done(function (errors) {
      $el.data('bs.validator.errors', errors)

      errors.length
        ? deferErrors ? self.defer($el, self.showErrors) : self.showErrors($el)
        : self.clearErrors($el)

      if (!prevErrors || errors.toString() !== prevErrors.toString()) {
        e = errors.length
          ? $.Event('invalid.bs.validator', {relatedTarget: $el[0], detail: errors})
          : $.Event('valid.bs.validator', {relatedTarget: $el[0], detail: prevErrors})

        self.$element.trigger(e)
      }

      self.toggleSubmit()

      self.$element.trigger($.Event('validated.bs.validator', {relatedTarget: $el[0]}))
    })
  }


  Validator.prototype.runValidators = function ($el) {
    var errors   = []
    var deferred = $.Deferred()

    $el.data('bs.validator.deferred') && $el.data('bs.validator.deferred').reject()
    $el.data('bs.validator.deferred', deferred)

    function getValidatorSpecificError(key) {
      return $el.attr('data-' + key + '-error')
    }

    function getValidityStateError() {
      var validity = $el[0].validity
      return validity.typeMismatch    ? $el.attr('data-type-error')
           : validity.patternMismatch ? $el.attr('data-pattern-error')
           : validity.stepMismatch    ? $el.attr('data-step-error')
           : validity.rangeOverflow   ? $el.attr('data-max-error')
           : validity.rangeUnderflow  ? $el.attr('data-min-error')
           : validity.valueMissing    ? $el.attr('data-required-error')
           :                            null
    }

    function getGenericError() {
      return $el.attr('data-error')
    }

    function getErrorMessage(key) {
      return getValidatorSpecificError(key)
          || getValidityStateError()
          || getGenericError()
    }

    $.each(this.validators, $.proxy(function (key, validator) {
      var error = null
      if ((getValue($el) || $el.attr('required')) &&
          ($el.attr('data-' + key) !== undefined || key == 'native') &&
          (error = validator.call(this, $el))) {
         error = getErrorMessage(key) || error
        !~errors.indexOf(error) && errors.push(error)
      }
    }, this))

    if (!errors.length && getValue($el) && $el.attr('data-remote')) {
      this.defer($el, function () {
        var data = {}
        data[$el.attr('name')] = getValue($el)
        $.get($el.attr('data-remote'), data)
          .fail(function (jqXHR, textStatus, error) { errors.push(getErrorMessage('remote') || error) })
          .always(function () { deferred.resolve(errors)})
      })
    } else deferred.resolve(errors)

    return deferred.promise()
  }

  Validator.prototype.validate = function () {
    var self = this

    $.when(this.$inputs.map(function (el) {
      return self.validateInput($(this), false)
    })).then(function () {
      self.toggleSubmit()
      self.focusError()
    })

    return this
  }

  Validator.prototype.focusError = function () {
    if (!this.options.focus) return

    var $input = this.$element.find(".has-error:first :input")
    if ($input.length === 0) return

    $('html, body').animate({scrollTop: $input.offset().top - Validator.FOCUS_OFFSET}, 250)
    $input.focus()
  }

  Validator.prototype.showErrors = function ($el) {
    var method = this.options.html ? 'html' : 'text'
    var errors = $el.data('bs.validator.errors')
    var $group = $el.closest('.form-group')
    var $block = $group.find('.help-block.with-errors')
    var $feedback = $group.find('.form-control-feedback')

    if (!errors.length) return

    errors = $('<ul/>')
      .addClass('list-unstyled')
      .append($.map(errors, function (error) { return $('<li/>')[method](error) }))

    $block.data('bs.validator.originalContent') === undefined && $block.data('bs.validator.originalContent', $block.html())
    $block.empty().append(errors)
    $group.addClass('has-error has-danger')

    $group.hasClass('has-feedback')
      && $feedback.removeClass(this.options.feedback.success)
      && $feedback.addClass(this.options.feedback.error)
      && $group.removeClass('has-success')
  }

  Validator.prototype.clearErrors = function ($el) {
    var $group = $el.closest('.form-group')
    var $block = $group.find('.help-block.with-errors')
    var $feedback = $group.find('.form-control-feedback')

    $block.html($block.data('bs.validator.originalContent'))
    $group.removeClass('has-error has-danger has-success')

    $group.hasClass('has-feedback')
      && $feedback.removeClass(this.options.feedback.error)
      && $feedback.removeClass(this.options.feedback.success)
      && getValue($el)
      && $feedback.addClass(this.options.feedback.success)
      && $group.addClass('has-success')
  }

  Validator.prototype.hasErrors = function () {
    function fieldErrors() {
      return !!($(this).data('bs.validator.errors') || []).length
    }

    return !!this.$inputs.filter(fieldErrors).length
  }

  Validator.prototype.isIncomplete = function () {
    function fieldIncomplete() {
      var value = getValue($(this))
      return !(typeof value == "string" ? $.trim(value) : value)
    }

    return !!this.$inputs.filter('[required]').filter(fieldIncomplete).length
  }

  Validator.prototype.onSubmit = function (e) {
    this.validate()
    if (this.isIncomplete() || this.hasErrors()) e.preventDefault()
  }

  Validator.prototype.toggleSubmit = function () {
    if (!this.options.disable) return
    this.$btn.toggleClass('disabled', this.isIncomplete() || this.hasErrors())
  }

  Validator.prototype.defer = function ($el, callback) {
    callback = $.proxy(callback, this, $el)
    if (!this.options.delay) return callback()
    window.clearTimeout($el.data('bs.validator.timeout'))
    $el.data('bs.validator.timeout', window.setTimeout(callback, this.options.delay))
  }

  Validator.prototype.reset = function () {
    this.$element.find('.form-control-feedback')
      .removeClass(this.options.feedback.error)
      .removeClass(this.options.feedback.success)

    this.$inputs
      .removeData(['bs.validator.errors', 'bs.validator.deferred'])
      .each(function () {
        var $this = $(this)
        var timeout = $this.data('bs.validator.timeout')
        window.clearTimeout(timeout) && $this.removeData('bs.validator.timeout')
      })

    this.$element.find('.help-block.with-errors')
      .each(function () {
        var $this = $(this)
        var originalContent = $this.data('bs.validator.originalContent')

        $this
          .removeData('bs.validator.originalContent')
          .html(originalContent)
      })

    this.$btn.removeClass('disabled')

    this.$element.find('.has-error, .has-danger, .has-success').removeClass('has-error has-danger has-success')

    return this
  }

  Validator.prototype.destroy = function () {
    this.reset()

    this.$element
      .removeAttr('novalidate')
      .removeData('bs.validator')
      .off('.bs.validator')

    this.$inputs
      .off('.bs.validator')

    this.options    = null
    this.validators = null
    this.$element   = null
    this.$btn       = null
    this.$inputs    = null

    return this
  }

  // VALIDATOR PLUGIN DEFINITION
  // ===========================


  function Plugin(option) {
    return this.each(function () {
      var $this   = $(this)
      var options = $.extend({}, Validator.DEFAULTS, $this.data(), typeof option == 'object' && option)
      var data    = $this.data('bs.validator')

      if (!data && option == 'destroy') return
      if (!data) $this.data('bs.validator', (data = new Validator(this, options)))
      if (typeof option == 'string') data[option]()
    })
  }

  var old = $.fn.validator

  $.fn.validator             = Plugin
  $.fn.validator.Constructor = Validator


  // VALIDATOR NO CONFLICT
  // =====================

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


  // VALIDATOR DATA-API
  // ==================

  $(window).on('load', function () {
    $('form[data-toggle="validator"]').each(function () {
      var $form = $(this)
      Plugin.call($form, $form.data())
    })
  })

}(jQuery);