|
1
11 package org.eclipse.jdt.internal.ui.actions;
12
13 import java.util.ResourceBundle  ;
14
15 import org.eclipse.jface.action.IAction;
16 import org.eclipse.jface.action.IMenuManager;
17 import org.eclipse.jface.preference.IPreferenceStore;
18
19 import org.eclipse.jface.text.ITextOperationTarget;
20 import org.eclipse.jface.text.ITextViewer;
21 import org.eclipse.jface.text.source.projection.IProjectionListener;
22 import org.eclipse.jface.text.source.projection.ProjectionViewer;
23
24 import org.eclipse.ui.actions.ActionGroup;
25 import org.eclipse.ui.texteditor.ITextEditor;
26 import org.eclipse.ui.texteditor.IUpdate;
27 import org.eclipse.ui.texteditor.ResourceAction;
28 import org.eclipse.ui.texteditor.TextOperationAction;
29
30 import org.eclipse.ui.editors.text.IFoldingCommandIds;
31
32 import org.eclipse.jdt.ui.PreferenceConstants;
33 import org.eclipse.jdt.ui.actions.IJavaEditorActionDefinitionIds;
34
35 import org.eclipse.jdt.internal.ui.JavaPlugin;
36 import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
37
38
39
44 public class FoldingActionGroup extends ActionGroup {
45 private static abstract class PreferenceAction extends ResourceAction implements IUpdate {
46 PreferenceAction(ResourceBundle bundle, String prefix, int style) {
47 super(bundle, prefix, style);
48 }
49 }
50
51
54 private class FoldingAction extends PreferenceAction {
55
56 FoldingAction(ResourceBundle bundle, String prefix) {
57 super(bundle, prefix, IAction.AS_PUSH_BUTTON);
58 }
59
60 public void update() {
61 setEnabled(FoldingActionGroup.this.isEnabled() && fViewer.isProjectionMode());
62 }
63
64 }
65
66 private ProjectionViewer fViewer;
67
68 private final PreferenceAction fToggle;
69 private final TextOperationAction fExpand;
70 private final TextOperationAction fCollapse;
71 private final TextOperationAction fExpandAll;
72 private final IProjectionListener fProjectionListener;
73
74
75 private final PreferenceAction fRestoreDefaults;
76 private final FoldingAction fCollapseMembers;
77 private final FoldingAction fCollapseComments;
78 private final TextOperationAction fCollapseAll;
79
80
81
89 public FoldingActionGroup(final ITextEditor editor, ITextViewer viewer) {
90 if (!(viewer instanceof ProjectionViewer)) {
91 fToggle= null;
92 fExpand= null;
93 fCollapse= null;
94 fExpandAll= null;
95 fCollapseAll= null;
96 fRestoreDefaults= null;
97 fCollapseMembers= null;
98 fCollapseComments= null;
99 fProjectionListener= null;
100 return;
101 }
102
103 fViewer= (ProjectionViewer) viewer;
104
105 fProjectionListener= new IProjectionListener() {
106
107 public void projectionEnabled() {
108 update();
109 }
110
111 public void projectionDisabled() {
112 update();
113 }
114 };
115
116 fViewer.addProjectionListener(fProjectionListener);
117
118 fToggle= new PreferenceAction(FoldingMessages.getResourceBundle(), "Projection.Toggle.", IAction.AS_CHECK_BOX) { public void run() {
120 IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore();
121 boolean current= store.getBoolean(PreferenceConstants.EDITOR_FOLDING_ENABLED);
122 store.setValue(PreferenceConstants.EDITOR_FOLDING_ENABLED, !current);
123 }
124
125 public void update() {
126 ITextOperationTarget target= (ITextOperationTarget) editor.getAdapter(ITextOperationTarget.class);
127
128 boolean isEnabled= (target != null && target.canDoOperation(ProjectionViewer.TOGGLE));
129 setEnabled(isEnabled);
130 }
131 };
132 fToggle.setChecked(true);
133 fToggle.setActionDefinitionId(IFoldingCommandIds.FOLDING_TOGGLE);
134 editor.setAction("FoldingToggle", fToggle);
136 fExpandAll= new TextOperationAction(FoldingMessages.getResourceBundle(), "Projection.ExpandAll.", editor, ProjectionViewer.EXPAND_ALL, true); fExpandAll.setActionDefinitionId(IFoldingCommandIds.FOLDING_EXPAND_ALL);
138 editor.setAction("FoldingExpandAll", fExpandAll);
140 fCollapseAll= new TextOperationAction(FoldingMessages.getResourceBundle(), "Projection.CollapseAll.", editor, ProjectionViewer.COLLAPSE_ALL, true); fCollapseAll.setActionDefinitionId(IFoldingCommandIds.FOLDING_COLLAPSE_ALL);
142 editor.setAction("FoldingCollapseAll", fCollapseAll);
144 fExpand= new TextOperationAction(FoldingMessages.getResourceBundle(), "Projection.Expand.", editor, ProjectionViewer.EXPAND, true); fExpand.setActionDefinitionId(IFoldingCommandIds.FOLDING_EXPAND);
146 editor.setAction("FoldingExpand", fExpand);
148 fCollapse= new TextOperationAction(FoldingMessages.getResourceBundle(), "Projection.Collapse.", editor, ProjectionViewer.COLLAPSE, true); fCollapse.setActionDefinitionId(IFoldingCommandIds.FOLDING_COLLAPSE);
150 editor.setAction("FoldingCollapse", fCollapse);
152 fRestoreDefaults= new FoldingAction(FoldingMessages.getResourceBundle(), "Projection.Restore.") { public void run() {
154 if (editor instanceof JavaEditor) {
155 JavaEditor javaEditor= (JavaEditor) editor;
156 javaEditor.resetProjection();
157 }
158 }
159 };
160 fRestoreDefaults.setActionDefinitionId(IFoldingCommandIds.FOLDING_RESTORE);
161 editor.setAction("FoldingRestore", fRestoreDefaults);
163 fCollapseMembers= new FoldingAction(FoldingMessages.getResourceBundle(), "Projection.CollapseMembers.") { public void run() {
165 if (editor instanceof JavaEditor) {
166 JavaEditor javaEditor= (JavaEditor) editor;
167 javaEditor.collapseMembers();
168 }
169 }
170 };
171 fCollapseMembers.setActionDefinitionId(IJavaEditorActionDefinitionIds.FOLDING_COLLAPSE_MEMBERS);
172 editor.setAction("FoldingCollapseMembers", fCollapseMembers);
174 fCollapseComments= new FoldingAction(FoldingMessages.getResourceBundle(), "Projection.CollapseComments.") { public void run() {
176 if (editor instanceof JavaEditor) {
177 JavaEditor javaEditor= (JavaEditor) editor;
178 javaEditor.collapseComments();
179 }
180 }
181 };
182 fCollapseComments.setActionDefinitionId(IJavaEditorActionDefinitionIds.FOLDING_COLLAPSE_COMMENTS);
183 editor.setAction("FoldingCollapseComments", fCollapseComments); }
185
186
194 protected boolean isEnabled() {
195 return fViewer != null;
196 }
197
198
201 public void dispose() {
202 if (isEnabled()) {
203 fViewer.removeProjectionListener(fProjectionListener);
204 fViewer= null;
205 }
206 super.dispose();
207 }
208
209
212 protected void update() {
213 if (isEnabled()) {
214 fToggle.update();
215 fToggle.setChecked(fViewer.isProjectionMode());
216 fExpand.update();
217 fExpandAll.update();
218 fCollapse.update();
219 fCollapseAll.update();
220 fRestoreDefaults.update();
221 fCollapseMembers.update();
222 fCollapseComments.update();
223 }
224 }
225
226
231 public void fillMenu(IMenuManager manager) {
232 if (isEnabled()) {
233 update();
234 manager.add(fToggle);
235 manager.add(fExpandAll);
236 manager.add(fExpand);
237 manager.add(fCollapse);
238 manager.add(fCollapseAll);
239 manager.add(fRestoreDefaults);
240 manager.add(fCollapseMembers);
241 manager.add(fCollapseComments);
242 }
243 }
244
245
248 public void updateActionBars() {
249 update();
250 }
251 }
252 |
Popular Tags |
Java API By Example, From Geeks To Geeks.