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1
11 package org.eclipse.ui.internal.registry;
12
13 import java.util.ArrayList  ;
14 import java.util.Collection ;
15 import java.util.List ;
16
17 import org.eclipse.core.runtime.IConfigurationElement;
18 import org.eclipse.core.runtime.IExtensionRegistry;
19 import org.eclipse.jface.preference.IPreferenceNode;
20 import org.eclipse.ui.IWorkbench;
21 import org.eclipse.ui.PlatformUI;
22 import org.eclipse.ui.internal.Workbench;
23 import org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode;
24
25
29 public class PreferencePageRegistryReader extends CategorizedPageRegistryReader {
30
31 private static final String TAG_PAGE = "page";
33 private List nodes;
34
35 private IWorkbench workbench;
36
37
38 class PreferencesCategoryNode extends CategoryNode {
39
40 WorkbenchPreferenceNode node;
41
42
47 public PreferencesCategoryNode(CategorizedPageRegistryReader reader,
48 WorkbenchPreferenceNode nodeToCategorize) {
49 super(reader);
50 this.node = nodeToCategorize;
51 }
52
53
56 String getLabelText() {
57 return node.getLabelText();
58 }
59
60
63 String getLabelText(Object element) {
64 return ((WorkbenchPreferenceNode) element).getLabelText();
65 }
66
67
70 Object getNode() {
71 return node;
72 }
73 }
74
75
80 public PreferencePageRegistryReader(IWorkbench newWorkbench) {
81 workbench = newWorkbench;
82 }
83
84
87 Object findNode(String id) {
88 for (int i = 0; i < nodes.size(); i++) {
89 WorkbenchPreferenceNode node = (WorkbenchPreferenceNode) nodes.get(i);
90 if (node.getId().equals(id)) {
91 return node;
92 }
93 }
94 return null;
95 }
96
97
100 Object findNode(Object parent, String currentToken) {
101 IPreferenceNode[] subNodes = ((WorkbenchPreferenceNode) parent).getSubNodes();
102 for (int i = 0; i < subNodes.length; i++) {
103 WorkbenchPreferenceNode node = (WorkbenchPreferenceNode) subNodes[i];
104 if (node.getId().equals(currentToken)) {
105 return node;
106 }
107 }
108 return null;
109 }
110
111
114 void add(Object parent, Object node) {
115 ((IPreferenceNode) parent).add((IPreferenceNode) node);
116 }
117
118
121 CategoryNode createCategoryNode(CategorizedPageRegistryReader reader, Object object) {
122 return new PreferencesCategoryNode(reader, (WorkbenchPreferenceNode) object);
123 }
124
125
128 String getCategory(Object node) {
129 return ((WorkbenchPreferenceNode) node).getCategory();
130 }
131
132
135 Collection getNodes() {
136 return nodes;
137 }
138
139
150 public void loadFromRegistry(IExtensionRegistry registry) {
151 nodes = new ArrayList ();
152
153 readRegistry(registry, PlatformUI.PLUGIN_ID, IWorkbenchRegistryConstants.PL_PREFERENCES);
154
155 processNodes();
156
157 }
158
159
162 protected boolean readElement(IConfigurationElement element) {
163 if (element.getName().equals(TAG_PAGE) == false) {
164 return false;
165 }
166 WorkbenchPreferenceNode node = createNode(element);
167 if (node != null) {
168 nodes.add(node);
169 }
170 return true;
171 }
172
173
178 public static WorkbenchPreferenceNode createNode(IConfigurationElement element) {
179 boolean nameMissing = element.getAttribute(IWorkbenchRegistryConstants.ATT_NAME) == null;
180 String id = element.getAttribute(IWorkbenchRegistryConstants.ATT_ID);
181 boolean classMissing = getClassValue(element, IWorkbenchRegistryConstants.ATT_CLASS) == null;
182
183 if (nameMissing) {
184 logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_NAME);
185 }
186 if (id == null) {
187 logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_ID);
188 }
189 if (classMissing) {
190 logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_CLASS);
191 }
192
193 if (nameMissing || id == null || classMissing) {
194 return null;
195 }
196
197 WorkbenchPreferenceNode node = new WorkbenchPreferenceNode(id, element);
198 return node;
199 }
200
201
205 public Collection getTopLevelNodes() {
206 return topLevelNodes;
207 }
208
209
212 String getFavoriteNodeId() {
213 return ((Workbench) workbench).getMainPreferencePageId();
214 }
215 }
216 |
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