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eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/uses/handler/CreateUseRecordHandler.java -text

eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/uses/operation/CreateUseRecordOperation.java -text

package eu.etaxonomy.taxeditor.editor.view.uses.handler;

import org.eclipse.core.commands.AbstractHandler;

import org.eclipse.core.commands.ExecutionEvent;

import org.eclipse.core.commands.ExecutionException;

import org.eclipse.core.commands.common.NotDefinedException;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.viewers.ITreeSelection;

import org.eclipse.jface.viewers.TreePath;

import org.eclipse.swt.widgets.Event;

import org.eclipse.ui.IEditorInput;

import org.eclipse.ui.IEditorPart;

import org.eclipse.ui.IWorkbenchPart;

import org.eclipse.ui.forms.editor.FormEditor;

import org.eclipse.ui.handlers.HandlerUtil;

import eu.etaxonomy.cdm.model.description.Feature;

import eu.etaxonomy.cdm.model.description.TaxonDescription;

import eu.etaxonomy.cdm.model.taxon.Taxon;

import eu.etaxonomy.taxeditor.editor.EditorUtil;

import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;

import eu.etaxonomy.taxeditor.editor.view.uses.operation.CreateUseRecordOperation;

import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;

import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;

public class CreateUseRecordHandler extends AbstractHandler {

	public Object execute(ExecutionEvent event) throws ExecutionException {

		IWorkbenchPart part = HandlerUtil.getActivePart(event);

		IPostOperationEnabled postOperationEnabled = (part instanceof IPostOperationEnabled) ? (IPostOperationEnabled) part

				: null;

		IEditorPart editor = HandlerUtil.getActiveEditor(event);

		if (editor instanceof FormEditor) {

			editor = ((FormEditor) editor).getActiveEditor();

		}

		IEditorInput input = editor.getEditorInput();

		if (input instanceof TaxonEditorInput) {

			Taxon taxon = ((TaxonEditorInput) input).getTaxon();

			TaxonDescription description = null;

			ISelection selection = HandlerUtil.getActiveMenuSelection(event);

			if (selection instanceof ITreeSelection) {

				TreePath[] paths = ((ITreeSelection) selection).getPaths();

				Object firstSegment = paths[0].getFirstSegment();

				if (firstSegment instanceof TaxonDescription) {

					description = (TaxonDescription) firstSegment;

				}

			}else if (selection instanceof IStructuredSelection) {

				Object selectedElement = ((IStructuredSelection) selection)

						.getFirstElement();

				if (selectedElement instanceof TaxonDescription){

					description = (TaxonDescription) selectedElement;

				}

			} 

			if (description != null) {

				Feature feature = (Feature) ((Event) event.getTrigger()).data;

				AbstractPostOperation operation = null;

				try {

					// TODO use undo context specific to editor

					operation = new CreateUseRecordOperation(event

							.getCommand().getName(),

							EditorUtil.getUndoContext(), taxon,

							description, element, postOperationEnabled);

					EditorUtil.executeOperation(operation);

				} catch (NotDefinedException e) {

					EditorUtil.warn(getClass(), "Command name not set");

				}

			} else {

				EditorUtil.error(getClass(), new IllegalArgumentException("Could not determine the taxon description"));

				return null;

			}

		}

		return null;

	}

}

package eu.etaxonomy.taxeditor.editor.view.uses.operation;

import org.eclipse.core.commands.ExecutionException;

import org.eclipse.core.commands.operations.IUndoContext;

import org.eclipse.core.runtime.IAdaptable;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import eu.etaxonomy.cdm.model.description.CategoricalData;

import eu.etaxonomy.cdm.model.description.CommonTaxonName;

import eu.etaxonomy.cdm.model.description.DescriptionElementBase;

import eu.etaxonomy.cdm.model.description.Distribution;

import eu.etaxonomy.cdm.model.description.Feature;

import eu.etaxonomy.cdm.model.description.IndividualsAssociation;

import eu.etaxonomy.cdm.model.description.QuantitativeData;

import eu.etaxonomy.cdm.model.description.TaxonDescription;

import eu.etaxonomy.cdm.model.description.TaxonInteraction;

import eu.etaxonomy.cdm.model.description.TextData;

import eu.etaxonomy.cdm.model.taxon.Taxon;

import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;

import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;

public class CreateUseRecordOperation extends AbstractPostOperation {

	public static final String ID = "eu.etaxonomy.taxeditor.editor.use.createUseRecord";

	private TaxonDescription description;

	private Feature feature;

	private DescriptionElementBase element;

	public CreateUseRecordOperation(String label, IUndoContext undoContext,

			Taxon taxon, TaxonDescription description, DescriptionElementBase element, IPostOperationEnabled postOperationEnabled) {

		super(label, undoContext, taxon, postOperationEnabled);

		this.description = description;

		this.element = element;

	}

	public CreateUseRecordOperation(String label,

			IUndoContext undoContext, Taxon taxon,

			TaxonDescription description, Feature feature,

			DescriptionElementBase element, IPostOperationEnabled postOperationEnabled) {

		this(label, undoContext, taxon, description, element, postOperationEnabled);

		this.element = element;

	}

	@Override

	public IStatus execute(IProgressMonitor monitor, IAdaptable info)

			throws ExecutionException {

		monitor.worked(20);

		if (element == null) {

			if (feature.isSupportsCommonTaxonName()) {

				element = CommonTaxonName.NewInstance("", null);

			} 

			else if (feature.isSupportsDistribution()) {

				element = Distribution.NewInstance();

			} 

			else if(feature.isSupportsTaxonInteraction()){

				element = TaxonInteraction.NewInstance();

			}

			else if(feature.isSupportsIndividualAssociation()){

				element = IndividualsAssociation.NewInstance();

			}

			else if(feature.isSupportsCategoricalData()){

				element = CategoricalData.NewInstance();

			}

			else if(feature.isSupportsQuantitativeData()){

				element = QuantitativeData.NewInstance();

			}

			else {

				element = TextData.NewInstance();

			}

		}

		element.setFeature(feature);

		description.addElement(element);

		monitor.worked(40);

		return postExecute(element);

	}

	@Override

	public IStatus redo(IProgressMonitor monitor, IAdaptable info)

			throws ExecutionException {

		description.addElement(element);

		return postExecute(element);

	}

	@Override

	public IStatus undo(IProgressMonitor monitor, IAdaptable info)

			throws ExecutionException {

		description.removeElement(element);

		return postExecute(null);

	}

}