package org.eclipse.ui.tests.api;

import org.eclipse.ui.IActionFilter;

public class ListElementActionFilter implements IActionFilter {

	private boolean called = false;
	
	public static final String ATTR_NAME = "name";
	public static final String ATTR_FLAG = "flag";
	public static final String VAL_TRUE = "true";
	public static final String VAL_FALSE = "false";
	
	private static ListElementActionFilter singleton;

	public static ListElementActionFilter getSingleton() {
		if (singleton == null)
			singleton = new ListElementActionFilter();
		return singleton;
	}
		
	private ListElementActionFilter() {
		super();
	}

	/**
	 * @see IActionFilter#testAttribute(Object, String, String)
	 */
	public boolean testAttribute(Object target, String name, String value) {
		called = true;
		ListElement le = (ListElement)target;
		if (name.equals(ATTR_NAME)) {
			return value.equals(le.getName());
		} else if (name.equals(ATTR_FLAG)) {
			boolean flag = le.getFlag();
			if (flag)
				return value.equals(VAL_TRUE);
			else
				return value.equals(VAL_FALSE);
		}	
		return false;
	}
	
	public void clearCalled() {
		called = false;
	}
	
	public boolean getCalled() {
		return called;
	}

}