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Package: DuplicateRowAction
DuplicateRowAction
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| DuplicateRowAction(TableRendererViewerActionContext) |
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| copy(Collection) |
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| copyBidirectionalReferences(EObject, EObject) |
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| copyElements(EObject, EStructuralFeature, EditingDomain, Collection) |
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| execute() |
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| getId() |
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| lambda$1(EObject, EObject, EObject, Collection) |
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| lambda$2(EObject, EObject, EStructuralFeature.Setting) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2018 EclipseSource Muenchen GmbH and others.
3: *
4: * All rights reserved. This program and the accompanying materials
5: * are made available under the terms of the Eclipse Public License 2.0
6: * which accompanies this distribution, and is available at
7: * https://www.eclipse.org/legal/epl-2.0/
8: *
9: * SPDX-License-Identifier: EPL-2.0
10: *
11: * Contributors:
12: * Mat Hansen - initial API and implementation
13: ******************************************************************************/
14: package org.eclipse.emf.ecp.view.spi.table.swt.action;
15:
16: import java.util.Collection;
17: import java.util.List;
18: import java.util.Map;
19:
20: import org.eclipse.emf.common.command.Command;
21: import org.eclipse.emf.ecore.EObject;
22: import org.eclipse.emf.ecore.EReference;
23: import org.eclipse.emf.ecore.EStructuralFeature;
24: import org.eclipse.emf.ecore.EStructuralFeature.Setting;
25: import org.eclipse.emf.ecore.util.EcoreUtil;
26: import org.eclipse.emf.ecore.util.EcoreUtil.Copier;
27: import org.eclipse.emf.edit.command.AddCommand;
28: import org.eclipse.emf.edit.domain.EditingDomain;
29: import org.eclipse.emfforms.spi.swt.table.action.ViewerActionContext;
30: import org.eclipse.jface.viewers.IStructuredSelection;
31: import org.eclipse.jface.viewers.StructuredSelection;
32:
33: /**
34: * Action to duplicate a row within a table viewer.
35: *
36: * @author Mat Hansen <mhansen@eclipsesource.com>
37: * @since 1.18
38: *
39: */
40: public class DuplicateRowAction extends TableRendererAction {
41:
42: /**
43: * The ID of this action.
44: */
45: public static final String ACTION_ID = PREFIX + "tablecontrol.duplicate_row"; //$NON-NLS-1$
46:
47: /**
48: * The default key binding of this action.
49: */
50: public static final String DEFAULT_KEYBINDING = "M1+d"; //$NON-NLS-1$
51:
52: /**
53: * The constructor.
54: *
55: * @param actionContext the {@link ViewerActionContext}
56: */
57: public DuplicateRowAction(TableRendererViewerActionContext actionContext) {
58: super(actionContext);
59: }
60:
61: @Override
62: public String getId() {
63: return ACTION_ID;
64: }
65:
66: @Override
67: public void execute() {
68: final Setting setting = getActionContext().getSetting();
69: final EObject eObject = setting.getEObject();
70: final EStructuralFeature eStructuralFeature = setting.getEStructuralFeature();
71:
72: @SuppressWarnings("unchecked")
73: final List<EObject> toDuplicate = ((IStructuredSelection) getTableViewer().getSelection()).toList();
74:
75: final Collection<EObject> copies = copyElements(
76: eObject, eStructuralFeature, getEditingDomainForContainment(), toDuplicate);
77:
78: getTableViewer().setSelection(new StructuredSelection(copies.iterator().next()), true);
79: }
80:
81: private Collection<EObject> copyElements(EObject eObject, EStructuralFeature structuralFeature,
82: EditingDomain editingDomain, Collection<EObject> elementsToCopy) {
83:
84: final Collection<EObject> copies = copy(elementsToCopy);
85: final Command createCommand = AddCommand.create(editingDomain, eObject, structuralFeature, copies);
86:• if (createCommand.canExecute()) {
87:• if (editingDomain.getCommandStack() == null) {
88: createCommand.execute();
89: } else {
90: editingDomain.getCommandStack().execute(createCommand);
91: }
92: }
93: return copies;
94: }
95:
96: /**
97: * Copies the collection of {@link EObject}.
98: *
99: * @param elementsToCopy The {@link Collection} to copy
100: * @return The copied {@link Collection}
101: */
102: Collection<EObject> copy(Collection<EObject> elementsToCopy) {
103: final Copier copier = new Copier();
104: final Collection<EObject> copies = copier.copyAll(elementsToCopy);
105: copier.copyReferences();
106: copier.forEach(this::copyBidirectionalReferences);
107: return copies;
108: }
109:
110: private void copyBidirectionalReferences(final EObject original, final EObject copy) {
111: final Map<EObject, Collection<Setting>> find = EcoreUtil.ExternalCrossReferencer.find(original);
112: // find all bidirectional references and manually set them on the copy
113: find.forEach((referenced, settings) -> {
114: settings.forEach(setting -> {
115: final EStructuralFeature feat = setting.getEStructuralFeature();
116: final EReference opp = ((EReference) feat).getEOpposite();
117: // if the opposite is a singleton, then we would change its reference, so ignore
118:• if (opp != null && opp.isMany() && setting.getEObject() == original) {
119: copy.eSet(feat, setting.get(true));
120: }
121: });
122: });
123: }
124:
125: @Override
126: public boolean canExecute() {
127:• if (isTableDisabled() || isUpperBoundReached() || isViewerSelectionInvalid()) {
128: return false;
129: }
130:
131: return true;
132: }
133:
134: }