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package eu.etaxonomy.taxeditor.featuretree.e4.handler;
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import javax.inject.Named;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.core.di.annotations.Optional;
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import org.eclipse.e4.ui.di.UISynchronize;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.jface.util.LocalSelectionTransfer;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import eu.etaxonomy.cdm.model.description.FeatureNode;
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import eu.etaxonomy.taxeditor.featuretree.e4.FeatureTreeEditor;
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import eu.etaxonomy.taxeditor.featuretree.e4.operation.AddFeatureOperation;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.store.StoreUtil;
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public class PasteFeatureHandler {
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@Execute
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public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part,
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@Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection, UISynchronize sync){
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FeatureTreeEditor editor = (FeatureTreeEditor)part.getObject();
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if (StoreUtil.checkDirty(editor)) {
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return;
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}
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ISelection clipBoardSelection = LocalSelectionTransfer.getTransfer().getSelection();
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FeatureNode parentNode = (FeatureNode) selection.getFirstElement();
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FeatureNode copiedNode = (FeatureNode) ((IStructuredSelection)clipBoardSelection).getFirstElement();
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AddFeatureOperation operation = new AddFeatureOperation(copiedNode.getFeature(), parentNode, editor, editor);
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AbstractUtility.executeOperation(operation, sync);
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}
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@CanExecute
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public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection,
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MHandledMenuItem menuItem){
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boolean canExecute = false;
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ISelection transferSelection = LocalSelectionTransfer.getTransfer().getSelection();
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canExecute = selection!=null
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&& selection.size()==1
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&& selection.getFirstElement() instanceof FeatureNode
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&& transferSelection instanceof IStructuredSelection
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&& ((IStructuredSelection)transferSelection).size()==1
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&& ((IStructuredSelection)transferSelection).getFirstElement() instanceof FeatureNode;
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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}
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