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package eu.etaxonomy.taxeditor.editor.handler;
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import org.eclipse.core.expressions.PropertyTester;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.TreeNode;
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import eu.etaxonomy.cdm.model.molecular.Sequence;
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import eu.etaxonomy.cdm.model.molecular.SingleRead;
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import eu.etaxonomy.cdm.model.occurrence.MediaSpecimen;
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import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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/**
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* Tests types of specimens to add items to the context menu.
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*
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* @author pplitzner
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* @author BenStoever
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*/
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public class SpecimenPropertyTester extends PropertyTester {
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private static final String SEQUENCE = "isSequence"; //$NON-NLS-1$
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private static final String SINGLE_READ = "isSingleRead"; //$NON-NLS-1$
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private static final String IS_SPECIMEN_OR_OBSERVATION_BASE = "isSpecimenOrObservationBase"; //$NON-NLS-1$
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private static final String IS_ADD_DERIVATE_ALLOWED = "isAddDerivateAllowed"; //$NON-NLS-1$
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private static final String IS_ADD_MEDIA_ALLOWED = "isAddMediaAllowed"; //$NON-NLS-1$
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public SpecimenPropertyTester() {}
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/** {@inheritDoc} */
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@Override
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public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
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if (receiver instanceof IStructuredSelection) {
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IStructuredSelection selection = (IStructuredSelection) receiver;
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TreeNode treeNodeOfSelection = EditorUtil.getTreeNodeOfSelection(selection);
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if (treeNodeOfSelection!=null) {
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if (SEQUENCE.equals(property)) {
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return isSequence(treeNodeOfSelection.getValue());
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}
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else if (SINGLE_READ.equals(property)) {
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return isSingleRead(treeNodeOfSelection.getValue());
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}
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else if (IS_SPECIMEN_OR_OBSERVATION_BASE.equals(property)) {
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return isSpecimenOrObservationBase(treeNodeOfSelection.getValue());
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}
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else if (IS_ADD_DERIVATE_ALLOWED.equals(property)) {
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return isAddDerivateAllowed(treeNodeOfSelection.getValue());
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}
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else if (IS_ADD_MEDIA_ALLOWED.equals(property)) {
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return isAddMediaAllowed(treeNodeOfSelection.getValue());
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}
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}
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}
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return false;
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}
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private boolean isSpecimenOrObservationBase(Object object) {
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return (object instanceof SpecimenOrObservationBase);
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}
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private boolean isAddDerivateAllowed(Object object) {
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return (object instanceof SpecimenOrObservationBase || object instanceof Sequence)
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&& !(object instanceof MediaSpecimen);
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}
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private boolean isAddMediaAllowed(Object object) {
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return object instanceof SpecimenOrObservationBase
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&& !(object instanceof MediaSpecimen);
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}
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private boolean isSingleRead(Object object) {
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return (object instanceof SingleRead);
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}
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private boolean isSequence(Object object) {
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return (object instanceof Sequence);
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}
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}
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