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package eu.etaxonomy.taxeditor.editor.view.media.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.model.application.ui.menu.MMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.view.media.e4.MediaViewPartE4;
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import eu.etaxonomy.taxeditor.editor.view.media.operation.AddExistingMediaToImageGalleryOperation;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.MediaSelectionDialog;
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public class AddExistingMediaHandler {
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@Execute
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public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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@Optional@Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection, MMenuItem menuItem,
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UISynchronize sync) {
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MediaViewPartE4 mediaView = (MediaViewPartE4) activePart.getObject();
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AbstractPostOperation operation = null;
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//select media
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Media media = MediaSelectionDialog.select(AbstractUtility.getShell(),// null,
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null);
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if(media!=null){
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// TODO use undo context specific to editor
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operation = new AddExistingMediaToImageGalleryOperation(media, menuItem.getLocalizedLabel(),
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EditorUtil.getUndoContext(), (DescriptionBase<?>) selection.getFirstElement(), mediaView);
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AbstractUtility.executeOperation(operation, sync);
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}
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}
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@CanExecute
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private boolean canExecute(MHandledMenuItem menuItem,
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@Optional@Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection){
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boolean canExecute = false;
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canExecute = selection.size()==1 && selection.getFirstElement() instanceof DescriptionBase;
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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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