src/main/java/eu/etaxonomy/vaadin/ui/navigation/PopupViewRegistration.java

   1 /**
   2 * Copyright (C) 2018 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.vaadin.ui.navigation;
  10
  11 import java.util.HashMap;
  12 import java.util.Map;
  13
  14 import org.apache.logging.log4j.LogManager;
  15 import org.apache.logging.log4j.Logger;
  16
  17 import com.vaadin.server.ClientConnector;
  18 import com.vaadin.server.ClientConnector.DetachEvent;
  19 import com.vaadin.server.ClientConnector.DetachListener;
  20 import com.vaadin.ui.Field;
  21 import com.vaadin.ui.Window;
  22
  23 import eu.etaxonomy.vaadin.mvp.ApplicationView;
  24 import eu.etaxonomy.vaadin.ui.view.PopupView;
  25
  26 /**
  27  * @author a.kohlbecker
  28  * @since May 16, 2018
  29  */
  30 public class PopupViewRegistration implements DetachListener {
  31
  32     private static final long serialVersionUID = -5946913287379095637L;
  33
  34     private static final Logger logger = LogManager.getLogger();
  35
  36     private Map<PopupView, Window> popupWindowMap = new HashMap<>();
  37
  38     private Map<ApplicationView<?>, Map<PopupView, Field<?>>> popupViewFieldMap = new HashMap<>();
  39
  40     /**
  41      * @param view
  42      * @param popup
  43      * @param field can be <code>null</code>
  44      * @return the previous Field associated with the popup that has been opened in the view
  45      */
  46     public Field<?> put(Window window, ApplicationView parentView, PopupView popup, Field<?> field){
  47
  48         ((ClientConnector)parentView).addDetachListener(this);
  49         popupWindowMap.put(popup, window);
  50
  51         if(!popupViewFieldMap.containsKey(parentView)){
  52             popupViewFieldMap.put(parentView, new HashMap<>());
  53         }
  54         Map<PopupView, Field<?>> popupFieldMap = popupViewFieldMap.get(parentView);
  55         return popupFieldMap.put(popup, field);
  56     }
  57
  58     public Field<?> get(ApplicationView view, PopupView popup){
  59         if(!popupViewFieldMap.containsKey(view)){
  60             popupViewFieldMap.get(view).get(popup);
  61         }
  62         return null;
  63     }
  64
  65     public Field<?> get(PopupView popup){
  66         for(Map<PopupView, Field<?>> popupFieldMap : popupViewFieldMap.values()){
  67             if(popupFieldMap.containsKey(popup)){
  68                 return popupFieldMap.get(popup);
  69             }
  70         }
  71         return null;
  72     }
  73
  74     /**
  75      * @param popup
  76      */
  77     public void remove(PopupView popup) {
  78
  79         popupWindowMap.remove(popup);
  80
  81         for(Map<PopupView, Field<?>> popupFieldMap : popupViewFieldMap.values()){
  82             if(popupFieldMap.containsKey(popup)){
  83                 popupFieldMap.remove(popup);
  84                 if(logger.isDebugEnabled()){
  85                     logger.debug(popup +  " removed from popupViewFieldMap");
  86                 }
  87             }
  88         }
  89     }
  90
  91     /**
  92      * @param popup
  93      * @return
  94      */
  95     public Window getWindow(PopupView popup) {
  96         return popupWindowMap.get(popup);
  97     }
  98
  99     /**
 100      * {@inheritDoc}
 101      */
 102     @Override
 103     public void detach(DetachEvent event) {
 104         ClientConnector connector = event.getConnector();
 105         if(ApplicationView.class.isAssignableFrom(connector.getClass())){
 106             Map<PopupView, Field<?>> removal = popupViewFieldMap.remove(connector);
 107             if(logger.isDebugEnabled() && removal != null){
 108                 logger.debug( connector +  " removed from popupViewFieldMap");
 109             }
 110         } else if(PopupView.class.isAssignableFrom(connector.getClass())){
 111             remove((PopupView)connector);
 112         }
 113
 114     }
 115
 116 }