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Java > Open Source Codes > org > eclipse > update > internal > ui > wizards > InstallWizardOperation


1 /*******************************************************************************
2  * Copyright (c) 2005, 2007 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.update.internal.ui.wizards;
12
13 import org.eclipse.core.runtime.Status;
14 import org.eclipse.core.runtime.jobs.IJobChangeEvent;
15 import org.eclipse.core.runtime.jobs.IJobChangeListener;
16 import org.eclipse.core.runtime.jobs.Job;
17 import org.eclipse.core.runtime.jobs.JobChangeAdapter;
18 import org.eclipse.jface.dialogs.MessageDialog;
19 import org.eclipse.jface.wizard.WizardDialog;
20 import org.eclipse.swt.custom.BusyIndicator;
21 import org.eclipse.swt.widgets.Shell;
22 import org.eclipse.update.internal.ui.UpdateUI;
23 import org.eclipse.update.internal.ui.UpdateUIMessages;
24 import org.eclipse.update.ui.UpdateJob;
25
26 public class InstallWizardOperation {
27     private UpdateJob job;
28     private IJobChangeListener jobListener;
29     private Shell shell;
30     private Shell parentShell;
31
32     public InstallWizardOperation() {
33     }
34
35     public void run(Shell parent, UpdateJob task) {
36         shell = parent;
37         if (shell.getParent()!=null && shell.getParent() instanceof Shell)
38             parentShell = (Shell)shell.getParent();
39         // cancel any existing jobs and remove listeners
40 if (jobListener != null)
41             Job.getJobManager().removeJobChangeListener(jobListener);
42         if (job != null)
43             Job.getJobManager().cancel(job);
44         
45         // then setup the new job and listener and schedule the job
46 job = task;
47         jobListener = new UpdateJobChangeListener();
48         Job.getJobManager().addJobChangeListener(jobListener);
49         job.schedule();
50     }
51     
52     private Shell getValidShell() {
53         if (shell.isDisposed())
54             return parentShell;
55         return shell;
56     }
57
58     private class UpdateJobChangeListener extends JobChangeAdapter {
59         public void done(final IJobChangeEvent event) {
60             final Shell validShell = getValidShell();
61             // the job listener is triggered when the search job is done, and proceeds to next wizard
62 if (event.getJob() == job) {
63                 Job.getJobManager().removeJobChangeListener(this);
64                 Job.getJobManager().cancel(job);
65                 if (job.getStatus() == Status.CANCEL_STATUS)
66                     return;
67                 if (job.getStatus() != Status.OK_STATUS)
68                     getValidShell().getDisplay().syncExec(new Runnable JavaDoc() {
69                         public void run() {
70                             UpdateUI.log(job.getStatus(), true);
71                         }
72                     });
73
74                 validShell.getDisplay().asyncExec(new Runnable JavaDoc() {
75                     public void run() {
76                         validShell.getDisplay().beep();
77                         BusyIndicator.showWhile(validShell.getDisplay(), new Runnable JavaDoc() {
78                             public void run() {
79                                 openInstallWizard2();
80                             }
81                         });
82                     }
83                 });
84             }
85         }
86
87         private void openInstallWizard2() {
88             if (InstallWizard2.isRunning()) {
89                 MessageDialog.openInformation(getValidShell(), UpdateUIMessages.InstallWizard_isRunningTitle, UpdateUIMessages.InstallWizard_isRunningInfo);
90                 return;
91             }
92             if (job.getUpdates() == null || job.getUpdates().length == 0) {
93                 if (job.isUpdate())
94                     MessageDialog.openInformation(getValidShell(), UpdateUIMessages.InstallWizard_ReviewPage_zeroUpdates, UpdateUIMessages.InstallWizard_ReviewPage_zeroUpdates);
95                 else
96                     MessageDialog.openInformation(getValidShell(), UpdateUIMessages.InstallWizard_ReviewPage_zeroFeatures, UpdateUIMessages.InstallWizard_ReviewPage_zeroFeatures);
97                 return;
98             }
99             InstallWizard2 wizard = new InstallWizard2(job.getSearchRequest(), job.getUpdates(), job.isUpdate());
100             WizardDialog dialog = new ResizableInstallWizardDialog(getValidShell(), wizard, UpdateUIMessages.AutomaticUpdatesJob_Updates);
101             dialog.create();
102             dialog.open();
103         }
104     }
105 }
106
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