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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.util.ui.actions;
import org.eclipse.net4j.util.internal.ui.bundle.OM;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
/**
* @author Eike Stepper
*/
public abstract class LongRunningAction extends SafeAction
{
private IWorkbenchPage page;
private int totalWork;
public LongRunningAction(IWorkbenchPage page)
{
this.page = page;
}
public LongRunningAction(IWorkbenchPage page, String text, String toolTipText, ImageDescriptor image)
{
super(text, toolTipText, image);
this.page = page;
}
public LongRunningAction(IWorkbenchPage page, String text, ImageDescriptor image)
{
super(text, image);
this.page = page;
}
public LongRunningAction(IWorkbenchPage page, String text, String toolTipText)
{
super(text, toolTipText);
this.page = page;
}
public LongRunningAction(IWorkbenchPage page, String text, int style)
{
super(text, style);
this.page = page;
}
public LongRunningAction(IWorkbenchPage page, String text)
{
super(text);
this.page = page;
}
public LongRunningAction()
{
}
public LongRunningAction(String text, ImageDescriptor image)
{
super(text, image);
}
public LongRunningAction(String text, int style)
{
super(text, style);
}
public LongRunningAction(String text, String toolTipText, ImageDescriptor image)
{
super(text, toolTipText, image);
}
public LongRunningAction(String text, String toolTipText)
{
super(text, toolTipText);
}
public LongRunningAction(String text)
{
super(text);
}
public IWorkbenchPage getPage()
{
if (page != null)
{
return page;
}
IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window != null)
{
return window.getActivePage();
}
return null;
}
public void setPage(IWorkbenchPage page)
{
this.page = page;
}
public IWorkbenchWindow getWorkbenchWindow()
{
if (page != null)
{
return page.getWorkbenchWindow();
}
return PlatformUI.getWorkbench().getActiveWorkbenchWindow();
}
/**
* @since 2.0
*/
public Display getDisplay()
{
IWorkbenchWindow workbenchWindow = getWorkbenchWindow();
if (workbenchWindow != null)
{
return workbenchWindow.getShell().getDisplay();
}
return PlatformUI.getWorkbench().getDisplay();
}
public Shell getShell()
{
IWorkbenchWindow workbenchWindow = getWorkbenchWindow();
if (workbenchWindow != null)
{
return workbenchWindow.getShell();
}
return new Shell();
}
protected final int getTotalWork()
{
return totalWork;
}
protected final void setTotalWork(int totalWork)
{
this.totalWork = totalWork;
}
protected final void cancel()
{
totalWork = 0;
}
@Override
protected final void safeRun() throws Exception
{
totalWork = IProgressMonitor.UNKNOWN;
preRun();
if (totalWork != 0)
{
new Job(getText())
{
@Override
protected IStatus run(IProgressMonitor progressMonitor)
{
try
{
doRun(progressMonitor);
return Status.OK_STATUS;
}
catch (Exception ex)
{
return new Status(IStatus.ERROR, OM.BUNDLE_ID, ex.getMessage(), ex);
}
}
}.schedule();
}
}
protected void preRun() throws Exception
{
}
protected String getBundleID()
{
return OM.BUNDLE_ID;
}
/**
* @since 2.0
*/
protected abstract void doRun(IProgressMonitor progressMonitor) throws Exception;
protected final void checkCancelation(IProgressMonitor monitor)
{
if (monitor.isCanceled())
{
throw new OperationCanceledException();
}
}
}
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