/*******************************************************************************
 * 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.ui.tests.internal;

import org.eclipse.jface.text.ITextSelection;

import org.eclipse.ui.IActionFilter;

public class ExtendedTextSelectionActionFilter implements IActionFilter {

	/**
	 * An attribute indicating the selection length (value <code>"isEmpty"</code>).  
	 * The attribute value in xml must be one of <code>"true" or "false"</code>.
	 */
	public static final String IS_EMPTY = "isEmpty"; //$NON-NLS-1$

	/**
	 * An attribute indicating the selection text (value <code>"text"</code>).  
	 * The attribute value in xml is unconstrained.
	 */
	public static final String TEXT = "text"; //$NON-NLS-1$

	/**
	 * An attribute indicating the selection text (value <code>"text"</code>).  
	 * The attribute value in xml is unconstrained.
	 */
	public static final String CASE_INSENSITIVE_TEXT = "caseInsensitiveText"; //$NON-NLS-1$

	/*
	 * @see IActionFilter#testAttribute(Object, String, String)
	 */
	public boolean testAttribute(Object target, String name, String value) {
		ITextSelection sel = (ITextSelection)target;
		if (name.equals(IS_EMPTY)) {
			return (sel.getLength() == 0);
		} else if (name.equals(TEXT)) {
			String text = sel.getText();
			return (text.indexOf(value) >= 0);
		} else if (name.equals(CASE_INSENSITIVE_TEXT)) {
			String text = sel.getText().toLowerCase();
			value = value.toLowerCase();
			return (text.indexOf(value) >= 0);
		}
		return false;
	}

}