/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-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;
    }

}