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Package: LeafConditionSegmentControlRenderer
LeafConditionSegmentControlRenderer
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| LeafConditionSegmentControlRenderer(VControl, ViewModelContext, ReportService, EMFFormsDatabindingEMF, EMFFormsLabelProvider, VTViewTemplateProvider) |
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| onSelectButton(Label) |
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| showInfo(Shell, String, String) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2019 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: * Lucas Koehler - initial API and implementation
13: ******************************************************************************/
14: package org.eclipse.emf.ecp.view.internal.editor.controls;
15:
16: import javax.inject.Inject;
17:
18: import org.eclipse.emf.databinding.IEMFValueProperty;
19: import org.eclipse.emf.ecore.EAttribute;
20: import org.eclipse.emf.ecore.EClass;
21: import org.eclipse.emf.ecore.EStructuralFeature;
22: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
23: import org.eclipse.emf.ecp.view.spi.model.VControl;
24: import org.eclipse.emf.ecp.view.spi.rule.RuleConditionDmrUtil;
25: import org.eclipse.emf.ecp.view.spi.rule.model.LeafCondition;
26: import org.eclipse.emf.ecp.view.spi.rule.model.RulePackage;
27: import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider;
28: import org.eclipse.emf.edit.command.SetCommand;
29: import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
30: import org.eclipse.emf.edit.domain.EditingDomain;
31: import org.eclipse.emfforms.spi.common.report.ReportService;
32: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
33: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedReport;
34: import org.eclipse.emfforms.spi.core.services.databinding.emf.EMFFormsDatabindingEMF;
35: import org.eclipse.emfforms.spi.core.services.label.EMFFormsLabelProvider;
36: import org.eclipse.jface.dialogs.MessageDialog;
37: import org.eclipse.swt.widgets.Label;
38: import org.eclipse.swt.widgets.Shell;
39:
40: /**
41: * Renders a control to select the expected value of a LeafCondition which uses a segment based domain model
42: * reference.
43: * <p>
44: * This implementation does not support selecting a value dmr anymore.
45: * If iterating over a multi reference is wanted, this should be done with an
46: * {@link org.eclipse.emf.ecp.view.spi.rule.model.IterateCondition IterateCondition} instead.
47: *
48: * @author Lucas Koehler
49: *
50: */
51: public class LeafConditionSegmentControlRenderer extends ExpectedValueControlRenderer {
52:
53: /**
54: * @param vElement The {@link VControl}
55: * @param viewContext The {@link ViewModelContext}
56: * @param reportService The {@link ReportService}
57: * @param databindingService The {@link EMFFormsDatabindingEMF}
58: * @param labelProvider The {@link EMFFormsLabelProvider}
59: * @param viewTemplateProvider The {@link VTViewTemplateProvider}
60: */
61: @Inject
62: public LeafConditionSegmentControlRenderer(VControl vElement, ViewModelContext viewContext,
63: ReportService reportService, EMFFormsDatabindingEMF databindingService, EMFFormsLabelProvider labelProvider,
64: VTViewTemplateProvider viewTemplateProvider) {
65: super(vElement, viewContext, reportService, databindingService, labelProvider, viewTemplateProvider);
66: }
67:
68: @Override
69: protected void onSelectButton(Label control) {
70: LeafCondition condition;
71: try {
72: condition = (LeafCondition) getObservedEObject();
73: } catch (final DatabindingFailedException ex) {
74: getReportService().report(new DatabindingFailedReport(ex));
75: return;
76: }
77:
78:• if (condition.getDomainModelReference() == null) {
79: showError(control.getShell(), "No Domain Model Reference found", //$NON-NLS-1$
80: "A Domain Model Reference needs to be added to the condition first."); //$NON-NLS-1$
81: return;
82: }
83:
84: EStructuralFeature structuralFeature;
85: try {
86: final EClass conditionRoot = RuleConditionDmrUtil.getDmrRootEClass(getEMFFormsDatabinding(),
87: getReportService(), condition).orElse(null);
88: final IEMFValueProperty valueProperty = getEMFFormsDatabinding()
89: .getValueProperty(condition.getDomainModelReference(), conditionRoot);
90: structuralFeature = valueProperty.getStructuralFeature();
91: } catch (final DatabindingFailedException ex) {
92: getReportService().report(new DatabindingFailedReport(ex));
93: return;
94: }
95:
96:• if (!EAttribute.class.isInstance(structuralFeature)) {
97: showError(control.getShell(), "No EAttribute selected", //$NON-NLS-1$
98: "The condition's domain model reference must point to an EAttribute."); //$NON-NLS-1$
99: return;
100: }
101:
102:• if (condition.getValueDomainModelReference() != null) {
103: showInfo(control.getShell(), "Legacy Value DMR will be removed", //$NON-NLS-1$
104: "The LeafCondition's Value DMR is deprecated with the usage of segments. This LeafCondition's value DMR is removed now. If you want to iterate over a multi reference, please use the Iterate Condition."); //$NON-NLS-1$
105: // This should not be undoable
106: condition.setValueDomainModelReference(null);
107: }
108:
109: final Object object = getSelectedObject((EAttribute) structuralFeature);
110: final EditingDomain editingDomain = AdapterFactoryEditingDomain.getEditingDomainFor(condition);
111: editingDomain.getCommandStack().execute(
112: SetCommand.create(editingDomain, condition, RulePackage.Literals.LEAF_CONDITION__EXPECTED_VALUE, object));
113:
114:• if (object != null) {
115: control.setText(object.toString());
116: } else {
117: control.setText("null"); //$NON-NLS-1$
118: }
119: }
120:
121: @Override
122: protected EMFFormsDatabindingEMF getEMFFormsDatabinding() {
123: return (EMFFormsDatabindingEMF) super.getEMFFormsDatabinding();
124: }
125:
126: /**
127: * Opens a dialog showing information to the user.
128: *
129: * @param parent The parent {@link Shell}
130: * @param title The title of the warning dialog
131: * @param message The message describing the warning
132: */
133: protected void showInfo(Shell parent, String title, String message) {
134: MessageDialog.openInformation(parent, title, message);
135: }
136: }