001 /* 002 * Created on Oct 7, 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.query; 017 018 import static org.fest.swing.edt.GuiActionRunner.execute; 019 020 import java.awt.Component; 021 022 import org.fest.swing.annotation.RunsInEDT; 023 import org.fest.swing.edt.GuiQuery; 024 025 /** 026 * Understands an action, executed in the event dispatch thread, that indicates whether a <code>{@link Component}</code> 027 * has focus or not. 028 * @see Component#hasFocus() 029 * 030 * @author Yvonne Wang 031 */ 032 public final class ComponentHasFocusQuery { 033 034 /** 035 * Indicates whether the given <code>{@link Component}</code> has input focus or not. This action is executed in the 036 * event dispatch thread. 037 * @param component the given <code>Component</code>. 038 * @return <code>true</code> if the given <code>Component</code> has input focus, <code>false</code> otherwise. 039 * @see Component#hasFocus() 040 */ 041 @RunsInEDT 042 public static boolean hasFocus(final Component component) { 043 return execute(new GuiQuery<Boolean>() { 044 protected Boolean executeInEDT() { 045 return component.hasFocus(); 046 } 047 }); 048 } 049 050 private ComponentHasFocusQuery() {} 051 }