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1
11 package org.eclipse.ltk.internal.ui.refactoring;
12
13 import org.eclipse.core.runtime.CoreException;
14 import org.eclipse.core.runtime.IProgressMonitor;
15 import org.eclipse.core.runtime.ISafeRunnable;
16 import org.eclipse.core.runtime.IStatus;
17 import org.eclipse.core.runtime.MultiStatus;
18 import org.eclipse.core.runtime.SafeRunner;
19 import org.eclipse.core.runtime.Status;
20 import org.eclipse.core.runtime.jobs.ISchedulingRule;
21 import org.eclipse.core.runtime.jobs.Job;
22
23 import org.eclipse.core.resources.ResourcesPlugin;
24
25 import org.eclipse.ltk.core.refactoring.Change;
26 import org.eclipse.ltk.core.refactoring.CreateChangeOperation;
27 import org.eclipse.ltk.core.refactoring.PerformChangeOperation;
28
29 import org.eclipse.swt.widgets.Button;
30 import org.eclipse.swt.widgets.Display;
31
32 import org.eclipse.jface.wizard.IWizardContainer;
33
34 public class UIPerformChangeOperation extends PerformChangeOperation {
35
36 private Display fDisplay;
37 private IWizardContainer fWizardContainer;
38
39 public UIPerformChangeOperation(Display display, Change change, IWizardContainer container) {
40 super(change);
41 fDisplay= display;
42 fWizardContainer= container;
43 }
44
45 public UIPerformChangeOperation(Display display, CreateChangeOperation op, IWizardContainer container) {
46 super(op);
47 fDisplay= display;
48 fWizardContainer= container;
49 }
50
51 protected void executeChange(final IProgressMonitor pm) throws CoreException {
52 if (fDisplay != null && !fDisplay.isDisposed()) {
53 final Throwable  [] exception= new Throwable [1];
54 final ISchedulingRule rule= ResourcesPlugin.getWorkspace().getRoot();
55 final Thread callerThread= Thread.currentThread();
56 final ISafeRunnable safeRunnable= new ISafeRunnable() {
57 public void run() {
58 try {
59 final Button cancel= getCancelButton();
60 boolean enabled= true;
61 if (cancel != null && !cancel.isDisposed()) {
62 enabled= cancel.isEnabled();
63 cancel.setEnabled(false);
64 }
65 try {
66 UIPerformChangeOperation.super.executeChange(pm);
67 } finally {
68 if (cancel != null && !cancel.isDisposed()) {
69 cancel.setEnabled(enabled);
70 }
71 }
72 } catch(CoreException e) {
73 exception[0]= e;
74 } finally {
75 Job.getJobManager().transferRule(rule, callerThread);
76 }
77 }
78 public void handleException(Throwable e) {
79 exception[0]= e;
80 }
81 };
82 Runnable r= new Runnable () {
83 public void run() {
84 SafeRunner.run(safeRunnable);
85 }
86 };
87 Job.getJobManager().transferRule(rule, fDisplay.getThread());
88 fDisplay.syncExec(r);
89 if (exception[0] != null) {
90 if (exception[0] instanceof CoreException) {
91 IStatus status= ((CoreException)exception[0]).getStatus();
92 throw new CoreException(new MultiStatus(
96 RefactoringUIPlugin.getPluginId(), IStatus.ERROR,
97 new IStatus[] {status}, status.getMessage(), exception[0]));
98 } else {
99 String message= exception[0].getMessage();
100 throw new CoreException(new Status(
101 IStatus.ERROR, RefactoringUIPlugin.getPluginId(),IStatus.ERROR,
102 message == null
103 ? RefactoringUIMessages.ChangeExceptionHandler_no_details
104 : message,
105 exception[0]));
106 }
107 }
108 } else {
109 super.executeChange(pm);
110 }
111 }
112
113 private Button getCancelButton() {
114 if (fWizardContainer instanceof RefactoringWizardDialog2) {
115 return ((RefactoringWizardDialog2)fWizardContainer).getCancelButton();
116 } else if (fWizardContainer instanceof RefactoringWizardDialog) {
117 return ((RefactoringWizardDialog)fWizardContainer).getCancelButton();
118 }
119 return null;
120 }
121 }
122 |
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