content: /*
   *  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.
   */
  package org.apache.causeway.viewer.wicket.ui.components.table.head;
  
  import org.apache.wicket.ajax.AjaxRequestTarget;
  import org.apache.wicket.extensions.ajax.markup.html.repeater.data.sort.AjaxFallbackOrderByBorder;
  import org.apache.wicket.extensions.markup.html.repeater.data.sort.ISortState;
  import org.apache.wicket.extensions.markup.html.repeater.data.sort.ISortStateLocator;
  import org.apache.wicket.extensions.markup.html.repeater.data.sort.SortOrder;
  
  import org.apache.causeway.viewer.wicket.model.hints.UiHintContainer;
  import org.apache.causeway.viewer.wicket.ui.components.table.DataTableWithPagesAndFilter;
  
  class OrderByBorder<T> extends AjaxFallbackOrderByBorder<T> {
  
      private static final long serialVersionUID = 1L;
  
      private final T sortProperty;
      private final DataTableWithPagesAndFilter<?, ?> dataTable;
  
      private final ISortStateLocator<T> stateLocator;
  
      public OrderByBorder(
              final String id,
              final DataTableWithPagesAndFilter<?, ?> dataTable,
              final T sortProperty,
              final ISortStateLocator<T> stateLocator
              /* removed in wicket 8, IAjaxCallListener ajaxCallListener*/) {
          super(id, sortProperty, stateLocator/* removed in wicket 8, ajaxCallListener*/);
          this.dataTable = dataTable;
          this.stateLocator = stateLocator;
          this.sortProperty = sortProperty;
      }
  
      @Override
      protected void onAjaxClick(final AjaxRequestTarget target) {
          target.add(dataTable);
  
          final UiHintContainer uiHintContainer = getUiHintContainer();
          if(uiHintContainer == null) return;
  
          final ISortState<T> state = stateLocator.getSortState();
          final SortOrder order = state.getPropertySortOrder(sortProperty);
  
          dataTable.setSortOrderHintAndBroadcast(order, sortProperty.toString(), target);
          dataTable.setPageNumberHintAndBroadcast(target);
      }
  
      @Override
      protected void onSortChanged() {
          super.onSortChanged();
          // UI hint & event broadcast in onAjaxClick
          dataTable.setCurrentPage(0);
      }
  
      // -- HELPER
  
      private UiHintContainer getUiHintContainer() {
          return UiHintContainer.Util.hintContainerOf(dataTable);
      }
  }
  