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Package: LinkOnlyMultiReferenceRendererService
LinkOnlyMultiReferenceRendererService
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| LinkOnlyMultiReferenceRendererService() |
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| getRendererClass() |
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| isAnnotationPresent(VElement) |
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| isApplicable(VElement, ViewModelContext) |
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| setEMFFormsDatabinding(EMFFormsDatabinding) |
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| setReportService(ReportService) |
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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: * Martin Fleck - initial API and implementation
13: * Lucas Koehler - Adapted for universal usage by using an annotation
14: ******************************************************************************/
15: package org.eclipse.emf.ecp.view.internal.control.multireference;
16:
17: import org.eclipse.core.databinding.property.value.IValueProperty;
18: import org.eclipse.emf.ecore.EAttribute;
19: import org.eclipse.emf.ecore.EStructuralFeature;
20: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
21: import org.eclipse.emf.ecp.view.spi.model.VAttachment;
22: import org.eclipse.emf.ecp.view.spi.model.VControl;
23: import org.eclipse.emf.ecp.view.spi.model.VElement;
24: import org.eclipse.emf.emfforms.spi.view.annotation.model.VAnnotation;
25: import org.eclipse.emfforms.spi.common.report.ReportService;
26: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
27: import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedReport;
28: import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding;
29: import org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer;
30: import org.eclipse.emfforms.spi.swt.core.di.EMFFormsDIRendererService;
31: import org.osgi.service.component.annotations.Component;
32: import org.osgi.service.component.annotations.Reference;
33:
34: /**
35: * Provides the {@link LinkOnlyMultiReferenceRenderer} for multi references. The renderer is only used if the
36: * corresponding control specifies an annotation with key {@value #ANNOTATION_KEY}.
37: *
38: * @author Martin Fleck
39: * @author Lucas Koehler
40: *
41: */
42: @Component(name = "LinkOnlyMultiReferenceRendererService")
43: public class LinkOnlyMultiReferenceRendererService implements EMFFormsDIRendererService<VControl> {
44:
45: /**
46: * The annotation key specifying that this renderer is applicable for a multi reference.
47: */
48: public static final String ANNOTATION_KEY = "hideAddNewButton"; //$NON-NLS-1$
49:
50: private EMFFormsDatabinding databindingService;
51: private ReportService reportService;
52:
53: /**
54: * Called by the initializer to set the EMFFormsDatabinding.
55: *
56: * @param databindingService The EMFFormsDatabinding
57: */
58: @Reference(unbind = "-")
59: protected void setEMFFormsDatabinding(EMFFormsDatabinding databindingService) {
60: this.databindingService = databindingService;
61: }
62:
63: /**
64: * Called by the initializer to set the ReportService.
65: *
66: * @param reportService The ReportService
67: */
68: @Reference(unbind = "-")
69: protected void setReportService(ReportService reportService) {
70: this.reportService = reportService;
71: }
72:
73: @Override
74: public double isApplicable(VElement vElement, ViewModelContext viewModelContext) {
75:• if (!VControl.class.isInstance(vElement)) {
76: return NOT_APPLICABLE;
77: }
78: final VControl control = (VControl) vElement;
79:• if (control.getDomainModelReference() == null) {
80: return NOT_APPLICABLE;
81: }
82:
83: IValueProperty valueProperty;
84: try {
85: valueProperty = databindingService
86: .getValueProperty(control.getDomainModelReference(), viewModelContext.getDomainModel());
87: } catch (final DatabindingFailedException ex) {
88: reportService.report(new DatabindingFailedReport(ex));
89: return NOT_APPLICABLE;
90: }
91: final EStructuralFeature feature = (EStructuralFeature) valueProperty.getValueType();
92:• if (!feature.isMany()) {
93: return NOT_APPLICABLE;
94: }
95:• if (EAttribute.class.isInstance(feature)) {
96: return NOT_APPLICABLE;
97: }
98:
99: // Check that the annotation is present; we do not care about the value
100:• if (isAnnotationPresent(vElement)) {
101: return 6;
102: }
103:
104: return NOT_APPLICABLE;
105: }
106:
107: // Method by itself to reduce n-path complexity of #isApplicable
108: private boolean isAnnotationPresent(VElement vElement) {
109:• for (final VAttachment vAttachment : vElement.getAttachments()) {
110:• if (VAnnotation.class.isInstance(vAttachment)
111:• && ANNOTATION_KEY.equals(VAnnotation.class.cast(vAttachment).getKey())) {
112: return true;
113: }
114: }
115: return false;
116: }
117:
118: @Override
119: public Class<? extends AbstractSWTRenderer<VControl>> getRendererClass() {
120: return LinkOnlyMultiReferenceRenderer.class;
121: }
122:
123: }