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package org.eclipse.team.internal.ui.target;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.core.sync.IRemoteSyncElement;
import org.eclipse.team.core.target.TargetManager;
import org.eclipse.team.core.target.TargetProvider;
import org.eclipse.team.internal.ui.Policy;
import org.eclipse.team.internal.ui.sync.CatchupReleaseViewer;
import org.eclipse.team.internal.ui.sync.SyncCompareInput;

public class TargetSyncCompareInput extends SyncCompareInput {

	private IResource[] resources;

	protected TargetSyncCompareInput(IResource[] resources, int granularity) {
		super(granularity);
		this.resources = resources;
	}

	/**
	 * @see SyncCompareInput#createSyncElements(IProgressMonitor)
	 */
	protected IRemoteSyncElement[] createSyncElements(IProgressMonitor monitor) throws TeamException {
		RemoteTargetSyncElement[] elements = new RemoteTargetSyncElement[resources.length];
		for (int i = 0; i < resources.length; i++) {
			IResource resource = resources[i];
			TargetProvider provider = TargetManager.getProvider(resource.getProject());
			elements[i] = new RemoteTargetSyncElement(resources[i], provider.getRemoteResourceFor(resource));
		}
		return elements;
	}

	/**
	 * @see CompareEditorInput#createDiffViewer(Composite)
	 */
	public Viewer createDiffViewer(Composite parent) {
		CatchupReleaseViewer viewer = new TargetCatchupReleaseViewer(parent, this);
		setViewer(viewer);
		return viewer;
	}
	
	protected void updateView() {
		// Update the view
		if (getDiffRoot().hasChildren()) {
			getViewer().refresh();
		} else {
			getViewer().setInput(null);
		}
		
		// Update the status line
		updateStatusLine();
	}
}

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