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         @Override
  35     public boolean test(Object receiver, String property, Object[] args,
  36                         Object expectedValue) {
  37
  38                 Object[] selectedElements = ((IStructuredSelection) receiver).toArray();
  39
  40                 if(selectedElements.length == 0){
  41                         // nothing selected so all tests should fail
  42                         return false;
  43                 }
  44
  45                 if(MEDIA.equals(property)){
  46                         return isMedia(selectedElements);
  47                 }
  48                 else if(FEATURE_NODE_CONTAINER.equals(property)){
  49                         return isFeatureNodeContainer(selectedElements);
  50                 }
  51                 else if(DESCRIPTION.equals(property)){
  52                         return isDescription(selectedElements);
  53                 }
  54                 else if(DESCRIPTION_ELEMENT.equals(property)){
  55                         return isDescriptionElement(selectedElements);
  56                 }
  57                 else if(DELETABLE.equals(property)){
  58                         return isDeletable(selectedElements);
  59                 }
  60                 else if(IMAGE_GALLERY.equals(property)){
  61                         return isImageGallery(selectedElements);
  62                 }
  63                 else{
  64                         return false;
  65                 }
  66         }
  67
  68         private boolean isImageGallery(Object[] selectedElements) {
  69                 for (Object object : selectedElements){
  70                         if(!(object instanceof DescriptionBase) || !((DescriptionBase) object).isImageGallery()){
  71                                 return false;
  72                         }
  73                 }
  74                 return true;
  75         }
  76
  77         private boolean isFeatureNodeContainer(Object[] selectedElements) {
  78                 for (Object object : selectedElements){
  79                         if(!(object instanceof FeatureNodeContainer)){
  80                                 return false;
  81                         }
  82                 }
  83                 return true;
  84         }
  85
  86         private boolean isDeletable(Object[] selectedElements) {
  87                 boolean result = false;
  88
  89                 for (Object object : selectedElements) {
  90
  91                         if((object instanceof DescriptionBase)
  92                                 || (object instanceof DescriptionElementBase)
  93                                 || (object instanceof Media)
  94                                 || (object instanceof FeatureNodeContainer)){
  95                                 result = true;
  96                         }else{
  97                                 return false;
  98                         }
  99
 100                 }
 101                 return result;
 102         }
 103
 104         private boolean isDescriptionElement(Object[] selectedElements) {
 105                 for (Object object : selectedElements){
 106                         if(!(object instanceof DescriptionElementBase)){
 107                                 return false;
 108                         }
 109                 }
 110                 return true;
 111         }
 112
 113         private boolean isDescription(Object[] selectedElements) {
 114                 for (Object object : selectedElements){
 115                         if(!(object instanceof DescriptionBase)){
 116                                 return false;
 117                         }
 118                 }
 119                 return true;
 120         }
 121
 122         private boolean isMedia(Object[] selectedElements) {
 123                 for (Object object : selectedElements){
 124                         if(!(object instanceof Media)){
 125                                 return false;
 126                         }
 127                 }
 128                 return true;
 129         }
 130 }