/*
* Created on Oct 22, 2008
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* Copyright @2008-2013 the original author or authors.
*/
package org.fest.swing.driver;
import static org.fest.swing.timing.Pause.pause;
import static org.fest.swing.util.TimeoutWatch.startWatchWithTimeoutOf;
import static org.fest.util.Lists.newArrayList;
import java.awt.Component;
import java.awt.Container;
import java.util.List;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.swing.JList;
import javax.swing.JPopupMenu;
import org.fest.swing.annotation.RunsInEDT;
import org.fest.swing.core.ComponentMatcher;
import org.fest.swing.core.Robot;
import org.fest.swing.core.TypeMatcher;
import org.fest.swing.util.TimeoutWatch;
/**
* Looks up the {@code JList} in the pop-up raised by a {@code JComboBox}, if the LAF actually uses one.
*
* @author Alex Ruiz
*/
final class JComboBoxDropDownListFinder {
static final ComponentMatcher LIST_MATCHER = new TypeMatcher(JList.class);
private final Robot robot;
JComboBoxDropDownListFinder(Robot robot) {
this.robot = robot;
}
/**
* Finds the {@code JList} in the pop-up raised by a {@code JComboBox}, if the LAF actually uses one.
*
* @return the found {@code JList}, or {@code null} if a drop-down list cannot be found.
*/
@RunsInEDT
@Nullable JList findDropDownList() {
JPopupMenu popup = robot.findActivePopupMenu();
if (popup == null) {
TimeoutWatch watch = startWatchWithTimeoutOf(robot.settings().timeoutToFindPopup());
popup = robot.findActivePopupMenu();
while (popup == null) {
if (watch.isTimeOut()) {
return null;
}
pause();
popup = robot.findActivePopupMenu();
}
}
return findListIn(popup);
}
private @Nullable JList findListIn(@Nonnull Container parent) {
List<Component> found = newArrayList(robot.finder().findAll(parent, LIST_MATCHER));
if (found.size() != 1) {
return null;
}
return (JList) found.get(0);
}
}