|
1
11 package org.eclipse.debug.internal.ui.viewers.model;
12
13
14 import java.lang.reflect.InvocationTargetException  ;
15 import java.util.ArrayList ;
16 import java.util.Iterator ;
17 import java.util.List ;
18
19 import org.eclipse.core.runtime.IProgressMonitor;
20 import org.eclipse.debug.internal.ui.DebugUIPlugin;
21 import org.eclipse.debug.internal.ui.actions.AbstractDebugActionDelegate;
22 import org.eclipse.debug.internal.ui.actions.ActionMessages;
23 import org.eclipse.debug.internal.ui.viewers.model.provisional.ILabelUpdate;
24 import org.eclipse.debug.ui.IDebugView;
25 import org.eclipse.jface.action.IAction;
26 import org.eclipse.jface.dialogs.MessageDialog;
27 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
28 import org.eclipse.jface.operation.IRunnableWithProgress;
29 import org.eclipse.jface.viewers.ContentViewer;
30 import org.eclipse.jface.viewers.ISelection;
31 import org.eclipse.swt.SWTError;
32 import org.eclipse.swt.dnd.Clipboard;
33 import org.eclipse.swt.dnd.DND;
34 import org.eclipse.swt.dnd.TextTransfer;
35 import org.eclipse.swt.dnd.Transfer;
36 import org.eclipse.swt.widgets.Control;
37 import org.eclipse.swt.widgets.Tree;
38 import org.eclipse.swt.widgets.TreeItem;
39
40 public class VirtualCopyToClipboardActionDelegate extends AbstractDebugActionDelegate {
41
42 private ContentViewer fViewer;
43 private static final String TAB = "\t"; private static final String EMPTY_STRING = ""; private static final String SEPARATOR = "line.separator"; private boolean fDone = false;
47
48
51 protected boolean initialize(IAction action, ISelection selection) {
52 if (!isInitialized()) {
53 IDebugView adapter= (IDebugView)getView().getAdapter(IDebugView.class);
54 if (adapter != null) {
55 if (adapter.getViewer() instanceof ContentViewer) {
56 setViewer((ContentViewer) adapter.getViewer());
57 }
58 adapter.setAction(getActionId(), action);
59 }
60 return super.initialize(action, selection);
61 }
62 return false;
63 }
64
65 protected String getActionId() {
66 return IDebugView.COPY_ACTION;
67 }
68
69
74 protected void append(TreeItem item, StringBuffer buffer, int indent) {
75 for (int i= 0; i < indent; i++) {
76 buffer.append(TAB);
77 }
78 String [] labels = null;
79 if (((InternalTreeModelViewer)fViewer).isShowColumns()) {
80 labels = new String [((InternalTreeModelViewer)fViewer).getPresentationContext().getColumns().length];
81 for (int i = 0; i < labels.length; i++) {
82 labels[i] = item.getText(i);
83 }
84 } else {
85 labels = new String []{item.getText()};
86 }
87 int count = labels.length;
88 if(count > 0) {
89 for (int i = 0; i < count; i++) {
90 String text = labels[i];
91 if(text != null && !text.trim().equals(EMPTY_STRING)) {
92 buffer.append(text+TAB);
93 }
94 }
95 buffer.append(System.getProperty(SEPARATOR));
96 }
97 }
98
99
102 public void run(final IAction action) {
103 if (fViewer instanceof InternalTreeModelViewer) {
104 InternalTreeModelViewer viewer = (InternalTreeModelViewer) fViewer;
105 fDone = false;
106 final Object lock = new Object ();
107 ProgressMonitorDialog dialog = new ProgressMonitorDialog(fViewer.getControl().getShell());
108 final IProgressMonitor monitor = dialog.getProgressMonitor();
109 dialog.setCancelable(true);
110
111 boolean queued = false;
112 ILabelUpdateListener listener = new ILabelUpdateListener() {
113 public void labelUpdatesComplete() {
114 synchronized (lock) {
115 fDone = true;
116 lock.notifyAll();
117 }
118 }
119 public void labelUpdatesBegin() {
120 }
121 public void labelUpdateStarted(ILabelUpdate update) {
122 }
123 public void labelUpdateComplete(ILabelUpdate update) {
124 monitor.worked(1);
125 }
126 };
127 viewer.addLabelUpdateListener(listener);
128 queued = viewer.populateVitrualItems();
129
130 if (queued) {
131 IRunnableWithProgress runnable = new IRunnableWithProgress() {
132 public void run(final IProgressMonitor m) throws InvocationTargetException , InterruptedException {
133 m.beginTask(DebugUIPlugin.removeAccelerators(getAction().getText()), IProgressMonitor.UNKNOWN);
134 synchronized (lock) {
135 if (!fDone) {
136 lock.wait();
137 }
138 }
139 m.done();
140 }
141 };
142 try {
143 dialog.run(true, true, runnable);
144 } catch (InvocationTargetException e) {
145 DebugUIPlugin.log(e);
146 return;
147 } catch (InterruptedException e) {
148 return;
149 }
150 }
151
152 viewer.removeLabelUpdateListener(listener);
153 if (!monitor.isCanceled()) {
154 List roots = getPrunedSelection();
155 Iterator iterator = roots.iterator();
156 StringBuffer buffer = new StringBuffer ();
157 while (iterator.hasNext()) {
158 TreeItem item = (TreeItem) iterator.next();
159 copy(item, buffer, 0);
160 }
161 TextTransfer plainTextTransfer = TextTransfer.getInstance();
162 Clipboard clipboard= new Clipboard(fViewer.getControl().getDisplay());
163 try {
164 doCopy(clipboard, plainTextTransfer, buffer);
165 } finally {
166 clipboard.dispose();
167 }
168 }
169 }
170 }
171
172
176 protected void copy(TreeItem item, StringBuffer buffer, int indent) {
177 append(item, buffer, indent);
178 if (item.getExpanded()) {
179 TreeItem[] items = item.getItems();
180 for (int i = 0; i < items.length; i++) {
181 copy(items[i], buffer, indent + 1);
182 }
183 }
184 }
185
186 protected void doCopy(Clipboard clipboard, TextTransfer plainTextTransfer, StringBuffer buffer) {
187 try {
188 clipboard.setContents(
189 new String []{buffer.toString()},
190 new Transfer[]{plainTextTransfer});
191 } catch (SWTError e){
192 if (e.code != DND.ERROR_CANNOT_SET_CLIPBOARD) {
193 throw e;
194 }
195 if (MessageDialog.openQuestion(fViewer.getControl().getShell(), ActionMessages.CopyToClipboardActionDelegate_Problem_Copying_to_Clipboard_1, ActionMessages.CopyToClipboardActionDelegate_There_was_a_problem_when_accessing_the_system_clipboard__Retry__2)) { doCopy(clipboard, plainTextTransfer, buffer);
197 }
198 }
199 }
200
201
205 protected List getPrunedSelection() {
206 Control control = fViewer.getControl();
207 List items = new ArrayList ();
208 if (control instanceof Tree) {
209 Tree tree = (Tree) control;
210 TreeItem[] selection = tree.getSelection();
211
212 for (int i = 0; i < selection.length; i++) {
213 TreeItem item = selection[i];
214 if (isEnabledFor(item.getData())) {
215 if (walkHierarchy(item, items)) {
216 items.add(item);
217 }
218 }
219 }
220 }
221 return items;
222 }
223
224
228 protected boolean walkHierarchy(TreeItem item, List elements) {
229 TreeItem parent= item.getParentItem();
230 if (parent == null) {
231 return true;
232 }
233 if (elements.contains(parent)) {
234 return false;
235 }
236 return walkHierarchy(parent, elements);
237 }
238
239 protected ContentViewer getViewer() {
240 return fViewer;
241 }
242
243 protected void setViewer(ContentViewer viewer) {
244 fViewer = viewer;
245 }
246
249 protected void doAction(Object element) {
250 }
252 }
253 |
Popular Tags |
Java API By Example, From Geeks To Geeks.