{:uriI"Ófile:///Library/WebServer/Documents/work/fine/_fae/app/assets/javascripts/fae/navigation/_language.js?type=application/javascript&pipeline=self&id=03fb6207efa9255612042fb3b621976cb6b2e0e106e3e57930a1036999a9a80c:ET:load_pathI"G/Library/WebServer/Documents/work/fine/_fae/app/assets/javascripts;T:filenameI"c/Library/WebServer/Documents/work/fine/_fae/app/assets/javascripts/fae/navigation/_language.js;T:	nameI"fae/navigation/_language;T:logical_pathI"%fae/navigation/_language.self.js;T:content_typeI"application/javascript;T:sourceI"Ñ	/* global Fae */

/**
 * Fae navigation language
 * @namespace navigation.language
 * @memberof navigation
 */

Fae.navigation.language = {

  el: {},

  init: function(options, elm){
    /** Stores shared jQuery objects in Fae.navigation.language.el */
    this.el.$select = $('#js-language');
    this.el.$lang_divs = $('div[data-language]');

    if (this.el.$select.length) {
      this.setInitialState();
      this.addNavEvents();
    }
  },

  /**
   * Reads the language of the active toggle on load and shows the corresponding fields
   */
  setInitialState: function() {
    var lang = this.el.$select.find('option[selected]').val();
    this._toggleLanguageFields(lang, 0);
  },

  /**
   * On change of the select field, change the language displayed
   * @has_test {spec/features/language_nav_spec.rb}
   */
  addNavEvents: function() {
    var _this = this;

    _this.el.$select.on('change', function(ev) {
      ev.preventDefault();

      var $this = $(this);
      var lang = $this.val();

      _this._toggleLanguageFields(lang, 200);

      // POSTs to Utilities#language_preference to save user's language preference
      lang = lang || 'all'
      var post_url = Fae.path + '/language_preference/' + lang;
      $.post(post_url);

      // Fade out extra error messages
      $('.hidden_errors').fadeOut(200, function() {
        $(this).remove();
      });
    });
  },

  /**
   * Hides all language fields and fades in ones according to language
   * @protected
   * @param {String} lang - Language of fields to fade in
   * @param {Number} speed - Speed of the fade transitions in ms
   * @has_test {spec/features/language_nav_spec.rb}
   */
  _toggleLanguageFields: function(lang, speed) {
    var _this = this;

    _this.el.$lang_divs
      .fadeOut(speed)
      .promise()
      .done(function() {
        if (lang) {
          $('div[data-language='+lang+']').fadeIn(speed);
        } else {
          _this.el.$lang_divs.fadeIn(speed);
        }
      });
  },

  /**
   * Called on form validation; checks for hidden fields with errors and displays a message
   * @see {@link form.validator.formValidate}
   */
  checkForHiddenErrors: function() {
    if (this.el.$select.length && $('div.field_with_errors:hidden').length && !FCH.exists('.hidden_errors')) {
      $(Fae.content_selector).prepend('<div class="hidden_errors field_with_errors"><span class="error">There are hidden errors. Click "All Languages" in the language nav to view all errors.</span></div>');
    }
  }
};
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