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/*
* Licensed Materials - Property of IBM,
* WebSphere Studio Workbench
* (c) Copyright IBM Corp 2001
*/
package org.eclipse.compare.internal;
import java.io.InputStream;
import java.util.ResourceBundle;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.ui.IActionDelegate;
import org.eclipse.compare.*;
public class ReplaceWithEditionAction implements IActionDelegate {
private static final String ACTION_LABEL= "Replace with Edition";
private ISelection fSelection;
public void run(IAction action) {
Object[] s= Utilities.toArray(fSelection);
for (int i= 0; i < s.length; i++) {
Object o= s[i];
if (o instanceof IFile) {
replaceFromHistory((IFile)o);
continue;
}
if (o instanceof IAdaptable) {
IAdaptable a= (IAdaptable) o;
Object adapter= a.getAdapter(IResource.class);
if (adapter instanceof IFile)
replaceFromHistory((IFile)adapter);
continue;
}
}
}
public void selectionChanged(IAction a, ISelection s) {
fSelection= s;
}
void replaceFromHistory(IFile file) {
Shell parent= CompareUIPlugin.getShell();
IFileState states[]= null;
try {
states= file.getHistory(null);
} catch (CoreException ex) {
MessageDialog.openError(parent, ACTION_LABEL, ex.getMessage());
return;
}
if (states != null && states.length > 0) {
ITypedElement base= new ResourceNode(file);
ITypedElement[] editions= new ITypedElement[states.length];
for (int i= 0; i < states.length; i++)
editions[i]= new HistoryItem(base, states[i]);
ResourceBundle bundle= ResourceBundle.getBundle("org.eclipse.compare.internal.ReplaceWithEditionAction");
EditionSelectionDialog d= new EditionSelectionDialog(parent, bundle);
ITypedElement ti= d.selectEdition(base, editions, null);
if (ti instanceof IStreamContentAccessor) {
try {
InputStream is= ((IStreamContentAccessor)ti).getContents();
file.setContents(is, false, true, null);
} catch (CoreException ex) {
MessageDialog.openError(parent, ACTION_LABEL, ex.getMessage());
}
}
} else
MessageDialog.openInformation(parent, ACTION_LABEL, "No local editions available for selected resource.");
}
}
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