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/*******************************************************************************
* Copyright (c) 2007, 2017 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.installer.ui;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.equinox.internal.p2.installer.Messages;
import org.eclipse.equinox.internal.provisional.p2.installer.*;
import org.eclipse.swt.widgets.Display;
/**
* Install context that creates a simple SWT-based UI and interacts with a user.
*/
public class SWTInstallAdvisor extends InstallAdvisor {
private InstallDialog dialog;
private boolean started = false;
private boolean stopped = false;
@Override
public IStatus performInstall(IInstallOperation operation) {
return dialog.run(operation);
}
@Override
public InstallDescription prepareInstallDescription(InstallDescription description) {
if (description.getInstallLocation() == null)
dialog.promptForLocations(description);
return description;
}
@Override
public boolean promptForLaunch(InstallDescription description) {
return dialog.promptForLaunch(description);
}
@Override
public void setResult(IStatus status) {
String message;
if (status.getSeverity() == IStatus.CANCEL) {
message = Messages.Advisor_Canceled;
} else {
message = status.getMessage();
}
dialog.promptForClose(message);
}
@Override
public synchronized void start() {
if (stopped || started)
return;
started = true;
Display display = Display.getCurrent();
if (display == null)
display = new Display();
dialog = new InstallDialog();
dialog.setMessage(Messages.Advisor_Preparing);
}
@Override
public synchronized void stop() {
if (stopped || !started)
return;
stopped = true;
final InstallDialog activeDialog = dialog;
if (activeDialog == null)
return;
//clear the window now, so the reference is gone no matter what happens during cleanup
dialog = null;
final Display display = activeDialog.getDisplay();
if (display == null || display.isDisposed())
return;
display.syncExec(() -> activeDialog.close());
display.dispose();
}
}
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