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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.ui.synchronize.viewers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.compare.structuremergeviewer.IDiffElement;
import org.eclipse.core.runtime.jobs.IJobChangeEvent;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.core.synchronize.SyncInfoSet;
import org.eclipse.team.internal.ui.synchronize.SyncInfoModelElement;
import org.eclipse.team.ui.TeamOperation;
import org.eclipse.ui.IWorkbenchPart;
/**
* A subscriber operation provides access to a {@link SyncInfoSet} containing
* the selection from a {@link SynchronizeModelAction}.
* When used in conjuntion with a {@link SynchronizeModelAction}, the selected
* elements in the view will show busy indication if this
* operation is run as a job.
*
* @see SyncInfoSet
* @see SynchronizeModelAction
* @since 3.0
*/
public abstract class SynchronizeModelOperation extends TeamOperation {
private IDiffElement[] elements;
/**
* Create a subscriber operation that will operate on the given diff elements
* that were obtained from a view populated by a
* {@link org.eclipse.team.ui.synchronize.viewers.SynchronizeModelProvider}.
* @param elements
*/
protected SynchronizeModelOperation(IWorkbenchPart part, IDiffElement[] elements) {
super(part);
this.elements = elements;
}
/**
* Returns a sync info set that contains the {@link SyncInfo} for the
* elements of this operations.
*/
protected SyncInfoSet getSyncInfoSet() {
return makeSyncInfoSetFromSelection(getSyncInfos());
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.jobs.JobChangeAdapter#scheduled(org.eclipse.core.runtime.jobs.IJobChangeEvent)
*/
public void scheduled(IJobChangeEvent event) {
super.scheduled(event);
markBusy(elements, true);
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.jobs.JobChangeAdapter#done(org.eclipse.core.runtime.jobs.IJobChangeEvent)
*/
public void done(IJobChangeEvent event) {
markBusy(elements, false);
super.done(event);
}
private void markBusy(IDiffElement[] elements, boolean isBusy) {
for (int i = 0; i < elements.length; i++) {
IDiffElement element = elements[i];
if (element instanceof ISynchronizeModelElement) {
((ISynchronizeModelElement)element).setPropertyToRoot(ISynchronizeModelElement.BUSY_PROPERTY, isBusy);
}
}
}
/*
* Return the selected SyncInfo for which this action is enabled.
* @return the selected SyncInfo for which this action is enabled.
*/
private SyncInfo[] getSyncInfos() {
List filtered = new ArrayList();
for (int i = 0; i < elements.length; i++) {
IDiffElement e = elements[i];
if (e instanceof SyncInfoModelElement) {
filtered.add(((SyncInfoModelElement)e).getSyncInfo());
}
}
return (SyncInfo[]) filtered.toArray(new SyncInfo[filtered.size()]);
}
/*
* Return a sync info set that contains the given sync info
*/
private SyncInfoSet makeSyncInfoSetFromSelection(SyncInfo[] infos) {
return new SyncInfoSet(infos);
}
}
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