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/**
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* Copyright (C) 2018 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.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.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.ISelection;
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import org.eclipse.jface.viewers.TreePath;
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import org.eclipse.jface.viewers.TreeSelection;
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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.cdm.model.taxon.Taxon;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.e4.TaxonEditorInput;
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import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditor;
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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.MoveMediaInListOperation;
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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.workbench.WorkbenchUtility;
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/**
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* @author pplitzner
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* @since Jun 6, 2018
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*/
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public abstract class AbstractMoveImageHandler {
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@Execute
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public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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MMenuItem menuItem,
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UISynchronize sync) {
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MediaViewPartE4 mediaView = (MediaViewPartE4) activePart.getObject();
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TaxonNameEditor editor = null;
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Object e4WrappedPart = WorkbenchUtility.getE4WrappedPart(mediaView.getSelectionProvidingPart());
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if (e4WrappedPart instanceof TaxonNameEditor) {
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editor = (TaxonNameEditor) e4WrappedPart;
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TaxonEditorInput input = editor.getEditorInput();
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Taxon taxon =input.getTaxon();
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TreeSelection selection = (TreeSelection) mediaView.getViewer().getSelection();
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TreePath[] paths = selection.getPaths();
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int count = paths[0].getSegmentCount();
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DescriptionBase<?> description = null;
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for (int i = 0; i < count; i++ ) {
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if (paths[0].getSegment(i) instanceof DescriptionBase) {
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description = (DescriptionBase<?>) paths[0].getSegment(i);
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break;
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}
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}
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AbstractPostOperation<?> operation = null;
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// TODO use undo context specific to editor
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operation = new MoveMediaInListOperation(menuItem.getLocalizedLabel(),
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EditorUtil.getUndoContext(),
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taxon,
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description,
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(Media)selection.getFirstElement(),
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moveImageOperation(),
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mediaView);
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AbstractUtility.executeOperation(operation, sync);
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}
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}
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public abstract int moveImageOperation();
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@CanExecute
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private boolean canExecute(MHandledMenuItem menuItem,
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@Named(IServiceConstants.ACTIVE_PART) MPart activePart){
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boolean canExecute = false;
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MediaViewPartE4 mediaView = (MediaViewPartE4) activePart.getObject();
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ISelection selection = mediaView.getViewer().getSelection();
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canExecute = selection instanceof TreeSelection
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&& ((TreeSelection) selection).size()==1
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&& ((TreeSelection) selection).getFirstElement() instanceof Media;
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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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