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1
11 package org.eclipse.pde.internal.ui.editor.feature;
12
13 import org.eclipse.core.runtime.CoreException;
14 import org.eclipse.pde.core.IModelChangedEvent;
15 import org.eclipse.pde.internal.core.feature.FeatureObject;
16 import org.eclipse.pde.internal.core.ifeature.IFeature;
17 import org.eclipse.pde.internal.core.ifeature.IFeatureChild;
18 import org.eclipse.pde.internal.core.ifeature.IFeatureData;
19 import org.eclipse.pde.internal.core.ifeature.IFeatureImport;
20 import org.eclipse.pde.internal.core.ifeature.IFeatureModel;
21 import org.eclipse.pde.internal.core.ifeature.IFeatureObject;
22 import org.eclipse.pde.internal.core.ifeature.IFeaturePlugin;
23 import org.eclipse.pde.internal.core.ifeature.IFeatureURL;
24 import org.eclipse.pde.internal.ui.PDEPlugin;
25 import org.eclipse.pde.internal.ui.editor.ModelUndoManager;
26 import org.eclipse.pde.internal.ui.editor.PDEFormEditor;
27
28 public class FeatureUndoManager extends ModelUndoManager {
29
30 public FeatureUndoManager(PDEFormEditor editor) {
31 super(editor);
32 setUndoLevelLimit(30);
33 }
34
35 protected String  getPageId(Object obj) {
36 if (obj instanceof IFeature || obj instanceof IFeatureURL)
37 return FeatureFormPage.PAGE_ID;
38 if (obj instanceof IFeaturePlugin)
39 return FeatureReferencePage.PAGE_ID;
40 if (obj instanceof IFeatureImport)
41 return FeatureDependenciesPage.PAGE_ID;
42 if (obj instanceof IFeatureData || obj instanceof IFeatureChild)
43 return FeatureAdvancedPage.PAGE_ID;
44 return null;
45 }
46
47 protected void execute(IModelChangedEvent event, boolean undo) {
48 Object [] elements = event.getChangedObjects();
49 int type = event.getChangeType();
50 String propertyName = event.getChangedProperty();
51 IFeatureModel model = (IFeatureModel) event.getChangeProvider();
52
53 switch (type) {
54 case IModelChangedEvent.INSERT:
55 if (undo)
56 executeRemove(model, elements);
57 else
58 executeAdd(model, elements);
59 break;
60 case IModelChangedEvent.REMOVE:
61 if (undo)
62 executeAdd(model, elements);
63 else
64 executeRemove(model, elements);
65 break;
66 case IModelChangedEvent.CHANGE:
67 if (undo)
68 executeChange(elements[0], propertyName, event.getNewValue(),
69 event.getOldValue());
70 else
71 executeChange(elements[0], propertyName, event.getOldValue(),
72 event.getNewValue());
73 }
74 }
75
76 private void executeAdd(IFeatureModel model, Object [] elements) {
77 IFeature feature = model.getFeature();
78
79 try {
80 for (int i = 0; i < elements.length; i++) {
81 Object element = elements[i];
82
83 if (element instanceof IFeaturePlugin) {
84 feature
85 .addPlugins(new IFeaturePlugin[] { (IFeaturePlugin) element });
86 } else if (element instanceof IFeatureData) {
87 feature
88 .addData(new IFeatureData[] { (IFeatureData) element });
89 } else if (element instanceof IFeatureImport) {
90 feature
91 .addImports(new IFeatureImport[] { (IFeatureImport) element });
92 } else if (element instanceof IFeatureChild) {
93 feature
94 .addIncludedFeatures(new IFeatureChild[] { (IFeatureChild) element });
95 }
96 }
97 } catch (CoreException e) {
98 PDEPlugin.logException(e);
99 }
100 }
101
102 private void executeRemove(IFeatureModel model, Object [] elements) {
103 IFeature feature = model.getFeature();
104
105 try {
106 for (int i = 0; i < elements.length; i++) {
107 Object element = elements[i];
108
109 if (element instanceof IFeaturePlugin) {
110 feature
111 .removePlugins(new IFeaturePlugin[] { (IFeaturePlugin) element });
112 } else if (element instanceof IFeatureData) {
113 feature
114 .removeData(new IFeatureData[] { (IFeatureData) element });
115 } else if (element instanceof IFeatureImport) {
116 feature
117 .removeImports(new IFeatureImport[] { (IFeatureImport) element });
118 } else if (element instanceof IFeatureChild) {
119 feature
120 .removeIncludedFeatures(new IFeatureChild[] { (IFeatureChild) element });
121 }
122 }
123 } catch (CoreException e) {
124 PDEPlugin.logException(e);
125 }
126 }
127
128 private void executeChange(Object element, String propertyName,
129 Object oldValue, Object newValue) {
130 if (element instanceof FeatureObject) {
131 FeatureObject pobj = (FeatureObject) element;
132 try {
133 pobj.restoreProperty(propertyName, oldValue, newValue);
134 } catch (CoreException e) {
135 PDEPlugin.logException(e);
136 }
137 }
138 }
139
140 public void modelChanged(IModelChangedEvent event) {
141 if (event.getChangeType() == IModelChangedEvent.CHANGE) {
142 Object obj = event.getChangedObjects()[0];
143 if (obj instanceof IFeatureObject) {
144 IFeatureObject fobj = (IFeatureObject) event
145 .getChangedObjects()[0];
146 if (!(fobj instanceof IFeature) && fobj.isInTheModel() == false)
148 return;
149 }
150 }
151 super.modelChanged(event);
152 }
153 }
154 |
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