ExplorerEditActions.java

package org.oddjob.monitor.view;

import org.oddjob.arooa.design.actions.EditActionsContributor;
import org.oddjob.arooa.parsing.DragPoint;
import org.oddjob.monitor.context.ExplorerContext;
import org.oddjob.monitor.model.ConfigContextSearch;
import org.oddjob.monitor.model.SelectedContextAware;

/**
 * A Set of edit actions that contribute to the menu and become
 * enabled/disabled dependent on job selection.
 * <p>
 * The actions forward to the actual edit actions in the underlying
 * components action map (in explorers case, the trees action map). 
 * Disabling/Enabling is not passed to the underlying actions
 * so they will always respond to key strokes.
 * 
 * @author rob
 *
 */
public class ExplorerEditActions extends EditActionsContributor 
implements SelectedContextAware {

	private ExplorerContext context;

	
	
	public void setSelectedContext(ExplorerContext context) {
		this.context = context;
		
		if (context == null) {
			setCutEnabled(false);
			setCopyEnabled(false);
			setPasteEnabled(false);
			setDeleteEnabled(false);
		}		
		
	}
	
	@Override
	public void prepare() {
		
		DragPoint dragPoint = null;

			ConfigContextSearch search = new ConfigContextSearch();
			dragPoint = search.dragPointFor(context);
			
		if (dragPoint == null) {
			setCutEnabled(false);
			setCopyEnabled(false);
			setPasteEnabled(false);
			setDeleteEnabled(false);
		}
		else {
			if (!dragPoint.supportsCut()) {
				setCutEnabled(false);
				setDeleteEnabled(false);
			} else {
				setCutEnabled(true);
				setDeleteEnabled(true);
			}
			
			setCopyEnabled(true);
			
			if (dragPoint.supportsPaste()) {
				setPasteEnabled(true);
			} else {
				setPasteEnabled(false);				
			}
		}
	}
	
}