01 /*
02 * SPDX-License-Identifier: Apache-2.0
03 *
04 * Copyright 2008-2017 the original author or authors.
05 *
06 * Licensed under the Apache License, Version 2.0 (the "License");
07 * you may not use this file except in compliance with the License.
08 * You may obtain a copy of the License at
09 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.codehaus.griffon.runtime.lanterna;
19
20 import com.googlecode.lanterna.gui.Action;
21 import com.googlecode.lanterna.gui.GUIScreen;
22 import org.codehaus.griffon.runtime.core.threading.AbstractUIThreadManager;
23
24 import javax.annotation.Nonnull;
25 import javax.inject.Inject;
26
27 /**
28 * Executes code honoring Lanterna's threading model.
29 *
30 * @author Andres Almiray
31 * @since 2.0.0
32 */
33 public class LanternaUIThreadManager extends AbstractUIThreadManager {
34 private final GUIScreen screen;
35
36 @Inject
37 public LanternaUIThreadManager(@Nonnull GUIScreen screen) {
38 this.screen = screen;
39 }
40
41 public boolean isUIThread() {
42 return screen.isInEventThread();
43 }
44
45 @Override
46 public void runInsideUIAsync(@Nonnull Runnable runnable) {
47 runInsideUISync(runnable);
48 }
49
50 @Override
51 public void runInsideUISync(@Nonnull final Runnable runnable) {
52 if (isUIThread()) {
53 runnable.run();
54 } else {
55 screen.runInEventThread(new Action() {
56 public void doAction() {
57 runnable.run();
58 }
59 });
60 }
61 }
62 }
|