{I"
class:EFI"ProcessedAsset; FI"logical_path; FI""umlaut/search_autocomplete.js; TI"pathname; FI"{/Users/jrochkind/.gem/ruby/1.9.3/bundler/gems/umlaut-f58324bca409/app/assets/javascripts/umlaut/search_autocomplete.js; TI"content_type; FI"application/javascript; FI"
mtime; Fl+;žìTI"length; FiÑI"digest; F"%183dfece08d1193031a632d818be6705I"source; FI"Ñ/* search_autocomplete.js.  Add autocomplete to Umlaut journal title search. */

jQuery(document).ready(function($) {
  if (typeof $.fn.typeahead === "undefined") {
    if ( window.console && window.console.log ) {
      window.console.log("ERROR: Can not load Umlaut autocomplete code, jQuery.fn.typeahead not available.")
    }
  } else {

   // We override typeahead's 'render' function to NOT have the first
   // item selected. We simply copy and pasted it, and removed the line
   // `items.first().addClass('active')`, then set the prototype to our
   // own function. Yes, this changes typeahead globally, sorry we don't have
   // a way to change it just for certain typeaheads. 
   //
   // The default first-item-selected behavior has been hated by users
   // in the journal search scenario, since when they hit return they
   // get it even if they didn't want it. 
   var newRender = function(items) {
        var that = this

        items = $(items).map(function (i, item) {
          i = $(that.options.item).attr('data-value', item)
          i.find('a').html(that.highlighter(item))
          return i[0]
        })

        this.$menu.html(items)
        return this
   };
   $.fn.typeahead.Constructor.prototype.render = newRender;
   // have to fix 'select' to accomodate possible no selection too
   $.fn.typeahead.Constructor.prototype.select = function() {
      var val = this.$menu.find('.active').attr('data-value');
      if (val) {
        this.$element
          .val(this.updater(val))
          .change();
      }
      return this.hide()
   }

    $(document).on("submit", "form.OpenURL", function() {
      var form = $(this);
      if ( form.find(".rft_title").val() != $(this).val()) {
        form.find(".rft_object_id").val("");
        form.find(".rft_title").val("");
      }
    });

    // Search for the title with the current form. Only search
    // if there are more than two chars though!
    //
    var search_title = function(query, process) {
      if (query.length > 2) {
        var form = this.$element.closest("form");
        var url = form.attr("action").replace("journal_search", "auto_complete_for_journal_title");
        // Get JSON from 
        $.getJSON(
          form.attr("action").replace("journal_search", "auto_complete_for_journal_title"),
          form.serialize(),
          function(data) {
            process(data)
          }
        )
      }
    }


    var lookup_limit = 300; //ms 
    // Uses a timer to only do a lookup at most once every
    // 300ms . Based on rejected pull request at:
    // https://github.com/twitter/bootstrap/pull/6320
    var throttled_search_title = function(query, process) {
      if(this.lookupTimer) {
        clearTimeout(this.lookupTimer);
      }

      this.lookupTimer = setTimeout($.proxy(search_title, this, query, process), lookup_limit);
      return this;
    }

    $("input.title_search").typeahead({
      items: 10,
      minLength: 3,
      source: throttled_search_title,
      highlighter: function(item) { 
        // Bootstrap updates the item as it passes through the callback chain
        // so this is a hack to ensure we get the proper values.
        return "<span id=\"" + item.object_id + "\" class=\"title\">"+ item.title + "</span>"; 
      },
      sorter: function(items) { return items },
      matcher: function(item) { return true; },
      updater: function(item) {
        // Get the selected item via our hack.
        var selected_item = this.$menu.find('.active .title');  
        if (selected_item.length > 0) {
          // We set the id attribute as the object id
          var object_id = selected_item.attr("id");
          // We set the inner text with the title
          var title = selected_item.text();
          var form = this.$element.closest("form");
          form.find("input.rft_object_id").val(object_id);
          form.find("input.rft_title").val(title);
          form.find("select.title_search_type").val("exact");
          return title;
        }
      }
    });
  }
});
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