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Package: ProxyResolverViewService
ProxyResolverViewService
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| ProxyResolverViewService() |
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| dispose() |
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| findProxiesAndResolve(VView) |
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| getPriority() |
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| instantiate(ViewModelContext) |
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| resolveProxy(VViewProxy) |
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| resolveView(VViewProxy) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2014 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: * Johannes Faltermeier - initial API and implementation
13: ******************************************************************************/
14: package org.eclipse.emf.ecp.view.internal.viewproxy.resolver;
15:
16: import java.util.List;
17:
18: import org.eclipse.emf.common.util.TreeIterator;
19: import org.eclipse.emf.ecore.EObject;
20: import org.eclipse.emf.ecore.EStructuralFeature;
21: import org.eclipse.emf.ecore.util.EcoreUtil;
22: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
23: import org.eclipse.emf.ecp.view.spi.context.ViewModelService;
24: import org.eclipse.emf.ecp.view.spi.model.VElement;
25: import org.eclipse.emf.ecp.view.spi.model.VView;
26: import org.eclipse.emf.ecp.view.spi.model.VViewModelProperties;
27: import org.eclipse.emf.ecp.view.spi.model.util.ViewModelPropertiesHelper;
28: import org.eclipse.emf.ecp.view.spi.provider.ViewProviderHelper;
29: import org.eclipse.emf.ecp.view.spi.vertical.model.VVerticalFactory;
30: import org.eclipse.emf.ecp.view.spi.vertical.model.VVerticalLayout;
31: import org.eclipse.emf.ecp.view.spi.viewproxy.model.VViewProxy;
32:
33: /**
34: * {@link ViewModelService} which replaces all {@link VViewProxy} occurrences in the view model with its resolved
35: * contents.
36: *
37: * @author jfaltermeier
38: *
39: */
40: public class ProxyResolverViewService implements ViewModelService {
41:
42: /**
43: * Id for proxy view models.
44: */
45: public static final String VIEW_MODEL_ID = "proxyId"; //$NON-NLS-1$
46:
47: private ViewModelContext context;
48:
49: /**
50: * {@inheritDoc}
51: *
52: * @see org.eclipse.emf.ecp.view.spi.context.ViewModelService#instantiate(org.eclipse.emf.ecp.view.spi.context.ViewModelContext)
53: */
54: @Override
55: public void instantiate(ViewModelContext context) {
56: this.context = context;
57: final VView viewModel = (VView) context.getViewModel();
58: findProxiesAndResolve(viewModel);
59: }
60:
61: /**
62: * {@inheritDoc}
63: *
64: * @see org.eclipse.emf.ecp.view.spi.context.ViewModelService#dispose()
65: */
66: @Override
67: public void dispose() {
68: context = null;
69: }
70:
71: /**
72: * {@inheritDoc}
73: *
74: * @see org.eclipse.emf.ecp.view.spi.context.ViewModelService#getPriority()
75: */
76: @Override
77: public int getPriority() {
78: // Must be lower than the LocalizationViewModelService's priority because otherwise labels of elements defined
79: // in the proxy view are not localized.
80: // Should be lower than the DmrToSegments service so that segments are generated for the loaded proxy views.
81: return -2000;
82: }
83:
84: /**
85: * Finds and resolves view proxies in the given view.
86: *
87: * @param view the view
88: * @return whether resolvement was successful
89: */
90: /* package */boolean findProxiesAndResolve(VView view) {
91: final TreeIterator<EObject> iterator = view.eAllContents();
92:• while (iterator.hasNext()) {
93: final EObject current = iterator.next();
94:• if (VViewProxy.class.isInstance(current)) {
95: resolveProxy(VViewProxy.class.cast(current));
96: }
97: }
98: return true;
99: }
100:
101: private void resolveProxy(VViewProxy proxy) {
102: final VView view = resolveView(proxy);
103: final EStructuralFeature eContainingFeature = proxy.eContainingFeature();
104: final EObject eContainer = proxy.eContainer();
105: final Object objectContainer = eContainer.eGet(eContainingFeature);
106: int index = -1;
107:• if (eContainingFeature.isMany()) {
108: final List<?> objectList = (List<?>) objectContainer;
109: index = objectList.indexOf(proxy);
110: }
111: EcoreUtil.remove(eContainer, eContainingFeature, proxy);
112:• if (view == null) {
113: return;
114: }
115:• if (!findProxiesAndResolve(view)) {
116: return;
117: }
118: final VVerticalLayout layout = VVerticalFactory.eINSTANCE.createVerticalLayout();
119: layout.getChildren().addAll(view.getChildren());
120:• if (eContainingFeature.isMany()) {
121: // EMF API
122: @SuppressWarnings("unchecked")
123: final List<EObject> list = (List<EObject>) eContainer.eGet(eContainingFeature);
124: list.add(index, layout);
125: } else {
126: eContainer.eSet(eContainingFeature, layout);
127: }
128:
129: layout.getAttachments().addAll(proxy.getAttachments());
130: }
131:
132: private VView resolveView(VViewProxy proxy) {
133: final EObject eObject = context.getDomainModel();
134: final VElement viewModel = context.getViewModel();
135: final VViewModelProperties properties = ViewModelPropertiesHelper.getInhertitedPropertiesOrEmpty(viewModel);
136:• final String id = proxy.getId() == null ? "" : proxy.getId(); //$NON-NLS-1$
137: properties.addNonInheritableProperty(VIEW_MODEL_ID, id);
138: final VView view = ViewProviderHelper.getView(eObject, properties);
139: return view;
140: }
141: }