sul-dlss/SearchWorks

Blacklight.onLoad(function(){

  //Instantiates plugin for feedback form

  $("#feedback-form").feedbackForm();
  $("#connection-form").feedbackForm();
})


;(function ( $, window, document, undefined ) {
  /*
    jQuery plugin that handles some of the feedback form functionality

      Usage: $(selector).feedbackForm();

    No available options

    This plugin :
      - changes feedback form link to button
      - submits an ajax request for the feedback form
      - displays alert on response from feedback form
  */

    var pluginName = "feedbackForm";

    function Plugin( element, options ) {
        this.element = element;
        var $el, $form;

        this.options = $.extend( {}, options) ;
        this._name = pluginName;
        this.init();
    }

    function submitListener($el, $form){
      // Serialize and submit form if not on action url
      $form.each(function(i, form){
        if (location !== form.action){
          var $thisform = $(form);
          $thisform.find('#user_agent').val(navigator.userAgent);
          $thisform.find('#viewport').val('width:' + window.innerWidth + ' height:' + innerHeight);
          var lastSearch = $('.back-to-results').map(function() { return this.href }).get().join();
          $thisform.find('#last_search').val(lastSearch);
          $thisform.on('submit', function(e){
            e.preventDefault();
            const valuesToSubmit = new URLSearchParams(new FormData($thisform[0]))
            fetch(form.action, {
              method: 'POST',
              body: valuesToSubmit
            }).then((resp) => resp.json())
            .then((json) => {
              $($el).collapse('hide');
              $($form)[0].reset();
              renderFlashMessages(json);
            })

            return false;
          });

        }
      });
    }

    function isSuccess(response){
      switch(response[0][0]){
      case 'success':
        return true;
      default:
        return false;
      }
    }

    function renderFlashMessages(response){
      $.each(response, function(i,val){
        var flashHtml = "<div class='alert alert-" + val[0] + "'><button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;</button>" + val[1] + "</div>";

        // Show the flash message
        $('div.flash_messages').html(flashHtml);
      });
    }

    function replaceLink(form, link) {
      var attrs = {};
      $.each(link[0].attributes, function(idx, attr) {
          attrs[attr.nodeName] = attr.value;
      });
      attrs.class = 'cancel-link btn btn-link';

      // Replace the cancel link with a button
      link.replaceWith(function() {
        return $('<button />', attrs).append($(this).contents());
      });

      // Cancel link should not submit form
      form.find('button.cancel-link').on('click', function(e){
        e.preventDefault();
      });
    }

    Plugin.prototype = {

        init: function() {
          var $el = $(this.element);
          var $form = $($el).find('form');
          var $cancelLink = $el.find(".cancel-link");

          // Replace "Cancel" link with link styled button
          replaceLink($el, $cancelLink);

          //Add listener for form submit
          submitListener($el, $form);

          //Update href in nav link to '#'
          $('*[data-target="#' + this.element.id +'"]').attr('href', '#');

          //Updates reporting from fields for current location
          $('span.reporting-from-field').html(location.href);
          $('input.reporting-from-field').val(location.href);

          // Listen for form open and then add focus to message
          $('#' + this.element.id).on('shown.bs.collapse', function () {
            $form.find('.form-control').first().focus();
          });
        }
    };

    // A really lightweight plugin wrapper around the constructor,
    // preventing against multiple instantiations
    $.fn[pluginName] = function ( options ) {
        return this.each(function () {
            if (!$.data(this, "plugin_" + pluginName)) {
                $.data(this, "plugin_" + pluginName,
                new Plugin( this, options ));
            }
        });
    };

})( jQuery, window, document );