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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.syncope.client.console.chartjs;
20  
21  import org.apache.wicket.Component;
22  import org.apache.wicket.ajax.AbstractDefaultAjaxBehavior;
23  import org.apache.wicket.ajax.AjaxRequestTarget;
24  import org.apache.wicket.markup.head.IHeaderResponse;
25  import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
26  
27  /**
28   * Builds the bridge between wicket and chart.js' javascript.
29   */
30  public class ChartJSBehavior extends AbstractDefaultAjaxBehavior {
31  
32      private static final long serialVersionUID = 5935294904099227859L;
33  
34      @Override
35      protected void respond(final AjaxRequestTarget target) {
36      }
37  
38      @Override
39      public void renderHead(final Component component, final IHeaderResponse response) {
40          super.renderHead(component, response);
41  
42          if (component.getParent() instanceof ChartJSPanel) {
43              response.render(OnDomReadyHeaderItem.forScript(
44                      ((ChartJSPanel) component.getParent()).generateChart(component.getMarkupId())));
45          }
46      }
47  }