eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/handler/DescriptionsMenuPropertyTester.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.editor.view.descriptive.handler;
   5
   6 import org.eclipse.core.expressions.PropertyTester;
   7 import org.eclipse.jface.viewers.IStructuredSelection;
   8
   9 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  10 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  11 import eu.etaxonomy.cdm.model.media.Media;
  12 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  13
  14 /**
  15  * Property tester used by the description tree menu.
  16  *
  17  * @author p.ciardelli
  18  * @author n.hoffmann
  19  * @version $Id: $
  20  */
  21 public class DescriptionsMenuPropertyTester extends PropertyTester {
  22
  23         private static final String MEDIA = "isMedia";
  24         private static final String FEATURE_NODE_CONTAINER = "isFeatureNodeContainer";
  25         private static final String DESCRIPTION = "isDescription";
  26         private static final String DESCRIPTION_ELEMENT = "isDescriptionElement";
  27         private static final String DELETABLE = "isDeletable";
  28         private static final String IMAGE_GALLERY = "isImageGallery";
  29
  30         /* (non-Javadoc)
  31          * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
  32          */
  33         /** {@inheritDoc} */
  34         public boolean test(Object receiver, String property, Object[] args,
  35                         Object expectedValue) {
  36
  37                 Object[] selectedElements = ((IStructuredSelection) receiver).toArray();
  38
  39                 if(selectedElements.length == 0){
  40                         // nothing selected so all tests should fail
  41                         return false;
  42                 }
  43
  44                 if(MEDIA.equals(property)){
  45                         return isMedia(selectedElements);
  46                 }
  47                 else if(FEATURE_NODE_CONTAINER.equals(property)){
  48                         return isFeatureNodeContainer(selectedElements);
  49                 }
  50                 else if(DESCRIPTION.equals(property)){
  51                         return isDescription(selectedElements);
  52                 }
  53                 else if(DESCRIPTION_ELEMENT.equals(property)){
  54                         return isDescriptionElement(selectedElements);
  55                 }
  56                 else if(DELETABLE.equals(property)){
  57                         return isDeletable(selectedElements);
  58                 }
  59                 else if(IMAGE_GALLERY.equals(property)){
  60                         return isImageGallery(selectedElements);
  61                 }
  62                 else{
  63                         return false;
  64                 }
  65         }
  66
  67         private boolean isImageGallery(Object[] selectedElements) {
  68                 for (Object object : selectedElements){
  69                         if(!(object instanceof DescriptionBase) || !((DescriptionBase) object).isImageGallery()){
  70                                 return false;
  71                         }
  72                 }
  73                 return true;
  74         }
  75
  76         private boolean isFeatureNodeContainer(Object[] selectedElements) {
  77                 for (Object object : selectedElements){
  78                         if(!(object instanceof FeatureNodeContainer)){
  79                                 return false;
  80                         }
  81                 }
  82                 return true;
  83         }
  84
  85         private boolean isDeletable(Object[] selectedElements) {
  86                 boolean result = false;
  87
  88                 for (Object object : selectedElements) {
  89
  90                         if((object instanceof DescriptionBase)
  91                                 || (object instanceof DescriptionElementBase)
  92                                 || (object instanceof Media)
  93                                 || (object instanceof FeatureNodeContainer)){
  94                                 result = true;
  95                         }else{
  96                                 return false;
  97                         }
  98
  99                 }
 100                 return result;
 101         }
 102
 103         private boolean isDescriptionElement(Object[] selectedElements) {
 104                 for (Object object : selectedElements){
 105                         if(!(object instanceof DescriptionElementBase)){
 106                                 return false;
 107                         }
 108                 }
 109                 return true;
 110         }
 111
 112         private boolean isDescription(Object[] selectedElements) {
 113                 for (Object object : selectedElements){
 114                         if(!(object instanceof DescriptionBase)){
 115                                 return false;
 116                         }
 117                 }
 118                 return true;
 119         }
 120
 121         private boolean isMedia(Object[] selectedElements) {
 122                 for (Object object : selectedElements){
 123                         if(!(object instanceof Media)){
 124                                 return false;
 125                         }
 126                 }
 127                 return true;
 128         }
 129 }