core/src/main/web/hicc/ajax-solr/chukwa/widgets/TagcloudWidget.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 (callback) {
  if (typeof define === 'function' && define.amd) {
    define(['core/AbstractFacetWidget'], callback);
  }
  else {
    callback();
  }
}(function () {

(function ($) {

AjaxSolr.TagcloudWidget = AjaxSolr.AbstractFacetWidget.extend({
  afterRequest: function () {
    if (this.manager.response.facet_counts.facet_fields[this.field] === undefined) {
      $(this.target).html('no items found in current selection');
      return;
    }

    var maxCount = 0;
    var objectedItems = [];
    for (var facet in this.manager.response.facet_counts.facet_fields[this.field]) {
      var count = parseInt(this.manager.response.facet_counts.facet_fields[this.field][facet]);
      if (count > maxCount) {
        maxCount = count;
      }
      objectedItems.push({ facet: facet, count: count });
    }
    objectedItems.sort(function (a, b) {
      return a.facet < b.facet ? -1 : 1;
    });

    $(this.target).empty();
    for (var i = 0, l = objectedItems.length; i < l; i++) {
      var facet = objectedItems[i].facet;
      $(this.target).append(
        $('<a href="#" class="tagcloud_item"></a>')
        .text(facet)
        .addClass('tagcloud_size_' + parseInt(objectedItems[i].count / maxCount * 10))
        .click(this.clickHandler(facet))
      );
    }
  }
});

})(jQuery);

}));