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Package: GenModelGroupExpansionViewModelService
GenModelGroupExpansionViewModelService
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| GenModelGroupExpansionViewModelService() |
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| instantiate(ViewModelContext) |
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| static {...} |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2016 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: ******************************************************************************/
14: package org.eclipse.emfforms.internal.editor.genmodel.service;
15:
16: import java.util.HashMap;
17: import java.util.Map;
18:
19: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
20: import org.eclipse.emf.ecp.view.spi.context.ViewModelService;
21: import org.eclipse.emf.ecp.view.spi.group.model.VGroup;
22: import org.eclipse.emf.ecp.view.spi.group.model.VGroupPackage;
23: import org.eclipse.emf.ecp.view.spi.model.ModelChangeListener;
24: import org.eclipse.emf.ecp.view.spi.model.ModelChangeNotification;
25: import org.eclipse.emf.ecp.view.spi.model.VContainedElement;
26: import org.eclipse.emf.ecp.view.spi.model.VElement;
27: import org.eclipse.emf.ecp.view.spi.model.VView;
28:
29: /**
30: * This {@link ViewModelService} tracks the collapsed state of the groups used in {@link ViewModelContext#getViewModel()
31: * view model} of the {@link org.eclipse.emfforms.internal.editor.genmodel.GenModelEditor GenModelEditor}. The group
32: * state is stored statically so it is the same across all input
33: * models.
34: *
35: * @author Martin Fleck
36: *
37: */
38: public class GenModelGroupExpansionViewModelService implements ViewModelService {
39:
40: // known group names of the Ecore visible through the GenModel editor
41: private static final String ECORE_STANDARD = "Standard"; //$NON-NLS-1$
42: private static final String ECORE_ADVANCED = "Advanced"; //$NON-NLS-1$
43:
44: // known group names of the GenModel visible through the GenModel editor
45: private static final String GENMODEL_ALL = "All"; //$NON-NLS-1$
46: private static final String GENMODEL_EDIT = "Edit"; //$NON-NLS-1$
47: private static final String GENMODEL_EDITOR = "Editor"; //$NON-NLS-1$
48: private static final String GENMODEL_MODEL = "Model"; //$NON-NLS-1$
49: private static final String GENMODEL_MODEL_CLASS_DEFAULTS = "Model Class Defaults"; //$NON-NLS-1$
50: private static final String GENMODEL_MODEL_FEATURE_DEFAULTS = "Model Feature Defaults"; //$NON-NLS-1$
51: private static final String GENMODEL_PACKAGE_SUFFIXES = "Package Suffixes"; //$NON-NLS-1$
52: private static final String GENMODEL_TEMPLATES_MERGE = "Templates & Merge"; //$NON-NLS-1$
53: private static final String GENMODEL_TESTS = "Tests"; //$NON-NLS-1$
54:
55: /**
56: * Map storing the collapsed group states by group name.
57: */
58: private static final Map<String, Boolean> GROUP_COLLAPSED_STATES = new HashMap<String, Boolean>();
59: static {
60: // initialize default collapsed states
61: GROUP_COLLAPSED_STATES.put(ECORE_STANDARD, Boolean.FALSE);
62: GROUP_COLLAPSED_STATES.put(ECORE_ADVANCED, Boolean.FALSE);
63:
64: GROUP_COLLAPSED_STATES.put(GENMODEL_ALL, Boolean.FALSE);
65: GROUP_COLLAPSED_STATES.put(GENMODEL_EDIT, Boolean.TRUE);
66: GROUP_COLLAPSED_STATES.put(GENMODEL_EDITOR, Boolean.TRUE);
67: GROUP_COLLAPSED_STATES.put(GENMODEL_MODEL, Boolean.TRUE);
68: GROUP_COLLAPSED_STATES.put(GENMODEL_MODEL_CLASS_DEFAULTS, Boolean.TRUE);
69: GROUP_COLLAPSED_STATES.put(GENMODEL_MODEL_FEATURE_DEFAULTS, Boolean.TRUE);
70: GROUP_COLLAPSED_STATES.put(GENMODEL_PACKAGE_SUFFIXES, Boolean.TRUE);
71: GROUP_COLLAPSED_STATES.put(GENMODEL_TEMPLATES_MERGE, Boolean.TRUE);
72: GROUP_COLLAPSED_STATES.put(GENMODEL_TESTS, Boolean.TRUE);
73: }
74:
75: /**
76: * Context.
77: */
78: private ViewModelContext viewModelContext;
79:
80: /**
81: * Listener updating the stored group states.
82: */
83: private final ModelChangeListener collapsedStateListener = new ModelChangeListener() {
84: @Override
85: public void notifyChange(ModelChangeNotification notification) {
86: if (notification.getNotifier() instanceof VGroup
87: && notification.getStructuralFeature().equals(VGroupPackage.Literals.GROUP__COLLAPSED)) {
88: // update collapsed state
89: final VGroup group = (VGroup) notification.getNotifier();
90: GROUP_COLLAPSED_STATES.put(group.getName(), group.isCollapsed());
91: }
92: }
93: };
94:
95: /**
96: * {@inheritDoc}
97: *
98: * @see org.eclipse.emf.ecp.view.spi.context.ViewModelService#instantiate(org.eclipse.emf.ecp.view.spi.context.ViewModelContext)
99: */
100: @Override
101: public void instantiate(ViewModelContext context) {
102: final VElement viewModel = context.getViewModel();
103:• if (!(viewModel instanceof VView)) {
104: return; // this service only works on views
105: }
106:
107: final VView view = (VView) viewModel;
108: viewModelContext = context;
109:
110: // Set the groups' collapsed states to the stored states (default or set by the user)
111:• for (final VContainedElement element : view.getChildren()) {
112:• if (element instanceof VGroup) {
113: final VGroup group = (VGroup) element;
114: final Boolean groupCollapsedState = GROUP_COLLAPSED_STATES.get(group.getName());
115:• if (groupCollapsedState != null) {
116: group.setCollapsed(groupCollapsedState);
117: }
118: }
119: }
120:
121: // register listener
122: context.registerViewChangeListener(collapsedStateListener);
123: }
124:
125: /**
126: * {@inheritDoc}
127: *
128: * @see org.eclipse.emf.ecp.view.spi.context.ViewModelService#dispose()
129: */
130: @Override
131: public void dispose() {
132:• if (viewModelContext != null) {
133: viewModelContext.unregisterViewChangeListener(collapsedStateListener);
134: }
135: }
136:
137: /**
138: * {@inheritDoc}
139: *
140: * @see org.eclipse.emf.ecp.view.spi.context.ViewModelService#getPriority()
141: */
142: @Override
143: public int getPriority() {
144: return 0;
145: }
146: }