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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.molecular.handler;
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import org.eclipse.core.commands.AbstractHandler;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.ExecutionException;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.molecular.editor.AlignmentEditor;
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/**
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* Abstract implementation for all handlers triggering actions in an active instance of
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* {@link AlignmentEditor}.
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*
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* @author Ben Stöver
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* @date 19.06.2015
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*/
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public abstract class AbstractAlignmentEditorHandler extends AbstractHandler {
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public static AlignmentEditor getActiveAlignmentEditor() {
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Object activeEditor = AbstractUtility.getActiveEditor();
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if (activeEditor instanceof AlignmentEditor) {
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return (AlignmentEditor)activeEditor;
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}
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else {
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return null;
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}
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}
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@Override
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public Object execute(ExecutionEvent event) throws ExecutionException {
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AlignmentEditor editor = getActiveAlignmentEditor();
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if (editor != null) {
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doExecute(event, editor);
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}
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return null;
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}
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protected abstract void doExecute(ExecutionEvent event, AlignmentEditor editor) throws ExecutionException;
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}
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