001 /* 002 * Created on Jul 17, 2008 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 * 014 * Copyright @2008-2010 the original author or authors. 015 */ 016 package org.fest.swing.driver; 017 018 import static org.fest.swing.format.Formatting.format; 019 import static org.fest.swing.query.ComponentShowingQuery.isShowing; 020 import static org.fest.util.Strings.concat; 021 022 import java.awt.Component; 023 024 import org.fest.swing.timing.Condition; 025 026 /** 027 * Understands a condition that verifies that a <code>{@link Component}</code> is showing on the screen. 028 * 029 * @author Yvonne Wang 030 */ 031 public class WaitForComponentToShowCondition extends Condition { 032 033 private Component c; 034 035 /** 036 * Creates a new </code>{@link WaitForComponentToShowCondition}</code>. 037 * @param c the <code>Component</code> to verify. 038 * @return the created condition. 039 * @throws NullPointerException if the <code>Component</code> is <code>null</code>. 040 */ 041 public static WaitForComponentToShowCondition untilIsShowing(Component c) { 042 return new WaitForComponentToShowCondition(c); 043 } 044 045 private WaitForComponentToShowCondition(Component c) { 046 super(concat("Component ", format(c), " to show on the screen")); 047 if (c == null) throw new NullPointerException("The component to verify should not be null"); 048 this.c = c; 049 } 050 051 /** 052 * Indicates whether the <code>{@link Component}</code> in this condition is showing on the screen or not. 053 * @return <code>true</code> if the <code>Component</code> in this condition is showing on the screen, 054 * <code>false</code> otherwise 055 */ 056 public boolean test() { 057 return isShowing(c); 058 } 059 060 /** ${@inheritDoc} */ 061 @Override protected void done() { 062 c = null; 063 } 064 }