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1
11 package org.eclipse.ltk.internal.ui.refactoring;
12
13 import java.lang.reflect.InvocationTargetException  ;
14
15 import org.eclipse.swt.SWT;
16 import org.eclipse.swt.layout.GridData;
17 import org.eclipse.swt.widgets.Button;
18 import org.eclipse.swt.widgets.Composite;
19 import org.eclipse.swt.widgets.Control;
20 import org.eclipse.swt.widgets.Label;
21 import org.eclipse.swt.widgets.Shell;
22
23 import org.eclipse.core.runtime.CoreException;
24 import org.eclipse.core.runtime.IProgressMonitor;
25 import org.eclipse.core.runtime.IStatus;
26 import org.eclipse.core.runtime.Status;
27 import org.eclipse.core.runtime.SubProgressMonitor;
28
29 import org.eclipse.core.resources.IWorkspaceRunnable;
30 import org.eclipse.core.resources.ResourcesPlugin;
31
32 import org.eclipse.ltk.core.refactoring.Change;
33 import org.eclipse.ltk.core.refactoring.CompositeChange;
34 import org.eclipse.ltk.core.refactoring.Refactoring;
35 import org.eclipse.jface.dialogs.ErrorDialog;
36 import org.eclipse.jface.dialogs.IDialogConstants;
37 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
38
39 public class ChangeExceptionHandler {
40
41 private Shell fParent;
42 private String fName;
43
44 private static class RefactorErrorDialog extends ErrorDialog {
45 public RefactorErrorDialog(Shell parentShell, String dialogTitle, String dialogMessage, IStatus status, int displayMask) {
46 super(parentShell, dialogTitle, dialogMessage, status, displayMask);
47 }
48 protected void createButtonsForButtonBar(Composite parent) {
49 super.createButtonsForButtonBar(parent);
50 Button ok= getButton(IDialogConstants.OK_ID);
51 ok.setText( RefactoringUIMessages.ChangeExceptionHandler_undo);
52 Button abort= createButton(parent, IDialogConstants.CANCEL_ID, RefactoringUIMessages.ChangeExceptionHandler_abort, true);
53 abort.moveBelow(ok);
54 abort.setFocus();
55 }
56 protected Control createMessageArea (Composite parent) {
57 Control result= super.createMessageArea(parent);
58 new Label(parent, SWT.NONE); Label label= new Label(parent, SWT.NONE);
60 label.setText(RefactoringUIMessages.ChangeExceptionHandler_button_explanation);
61 label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
62 applyDialogFont(result);
63 return result;
64 }
65 }
66
67 public ChangeExceptionHandler(Shell parent, Refactoring refactoring) {
68 fParent= parent;
69 fName= refactoring.getName();
70 }
71
72 public void handle(Change change, RuntimeException exception) {
73 RefactoringUIPlugin.log(exception);
74 IStatus status= null;
75 if (exception.getMessage() == null) {
76 status= new Status(IStatus.ERROR, RefactoringUIPlugin.getPluginId(), IStatus.ERROR,
77 RefactoringUIMessages.ChangeExceptionHandler_no_details, exception);
78 } else {
79 status= new Status(IStatus.ERROR, RefactoringUIPlugin.getPluginId(), IStatus.ERROR,
80 exception.getMessage(), exception);
81 }
82 handle(change, status);
83 }
84
85 public void handle(Change change, CoreException exception) {
86 RefactoringUIPlugin.log(exception);
87 handle(change, exception.getStatus());
88 }
89
90 private void handle(Change change, IStatus status) {
91 if (change instanceof CompositeChange) {
92 Change undo= ((CompositeChange)change).getUndoUntilException();
93 if (undo != null) {
94 RefactoringUIPlugin.log(status);
95 final ErrorDialog dialog= new RefactorErrorDialog(fParent,
96 RefactoringUIMessages.ChangeExceptionHandler_refactoring,
97 Messages.format(RefactoringUIMessages.ChangeExceptionHandler_unexpected_exception, fName),
98 status, IStatus.OK | IStatus.INFO | IStatus.WARNING | IStatus.ERROR);
99 int result= dialog.open();
100 if (result == IDialogConstants.OK_ID) {
101 performUndo(undo);
102 }
103 return;
104 }
105 }
106 ErrorDialog dialog= new ErrorDialog(fParent,
107 RefactoringUIMessages.ChangeExceptionHandler_refactoring,
108 Messages.format(RefactoringUIMessages.ChangeExceptionHandler_unexpected_exception, fName),
109 status, IStatus.OK | IStatus.INFO | IStatus.WARNING | IStatus.ERROR);
110 dialog.open();
111 }
112
113 private void performUndo(final Change undo) {
114 IWorkspaceRunnable runnable= new IWorkspaceRunnable() {
115 public void run(IProgressMonitor monitor) throws CoreException {
116 monitor.beginTask("", 11); try {
118 undo.initializeValidationData(new NotCancelableProgressMonitor(new SubProgressMonitor(monitor, 1)));
119 if (undo.isValid(new SubProgressMonitor(monitor,1)).hasFatalError()) {
120 monitor.done();
121 return;
122 }
123 undo.perform(new SubProgressMonitor(monitor, 9));
124 } finally {
125 undo.dispose();
126 }
127 }
128 };
129 WorkbenchRunnableAdapter adapter= new WorkbenchRunnableAdapter(runnable,
130 ResourcesPlugin.getWorkspace().getRoot());
131 ProgressMonitorDialog dialog= new ProgressMonitorDialog(fParent);
132 try {
133 dialog.run(false, false, adapter);
134 } catch (InvocationTargetException e) {
135 ExceptionHandler.handle(e, fParent,
136 RefactoringUIMessages.ChangeExceptionHandler_rollback_title,
137 RefactoringUIMessages.ChangeExceptionHandler_rollback_message + fName);
138 } catch (InterruptedException e) {
139 }
141 }
142 }
143 |
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