text: /**
   * Copyright JS Foundation and other contributors, http://js.foundation
   *
   * Licensed 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.
   **/
  
  RED.stack = (function() {
      function createStack(options) {
          var container = options.container;
  
          var entries = [];
  
          return {
              add: function(entry) {
  
                  entries.push(entry);
                  var entryContainer = $('<div class="palette-category">').appendTo(container);
  
                  var header = $('<div class="palette-header"></div>').appendTo(entryContainer);
                  var icon = $('<i class="fa fa-angle-down"></i>').appendTo(header);
                  $('<span></span>').html(entry.title).appendTo(header);
                  entry.content = $('<div class="editor-tray-content"></div>').appendTo(entryContainer);
  
                  if (entry.expanded) {
                      icon.addClass("expanded");
                  } else {
                      entry.content.hide();
                  }
  
                  header.click(function() {
                      if (options.singleExpanded) {
                          if (!entry.isExpanded()) {
                              for (var i=0;i<entries.length;i++) {
                                  if (entries[i].isExpanded()) {
                                      entries[i].collapse();
                                  }
                              }
                              entry.expand();
                          }
                      } else {
                          entry.toggle();
                      }
                  });
                  entry.toggle = function() {
                      if (entry.isExpanded()) {
                          entry.collapse();
                          return false;
                      } else {
                          entry.expand();
                          return true;
                      }
                  };
                  entry.expand = function() {
                      if (!entry.isExpanded()) {
                          if (entry.onexpand) {
                              entry.onexpand.call(entry);
                          }
                          icon.addClass("expanded");
                          entry.content.slideDown(200);
                          return true;
                      }
                  };
                  entry.collapse = function() {
                      if (entry.isExpanded()) {
                          icon.removeClass("expanded");
                          entry.content.slideUp(200);
                          return true;
                      }
                  };
                  entry.isExpanded = function() {
                      return icon.hasClass("expanded");
                  };
  
                  return entry;
  
              },
  
          }
  
      }
  
      return {
          create: createStack
      }
  })();
  