01 /*
02 * Copyright 2008-2016 the original author or authors.
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.codehaus.griffon.runtime.lanterna;
17
18 import com.googlecode.lanterna.gui.GUIScreen;
19 import com.googlecode.lanterna.gui.Window;
20 import griffon.lanterna.LanternaWindowDisplayHandler;
21
22 import javax.annotation.Nonnull;
23 import javax.inject.Inject;
24
25 import static griffon.util.GriffonNameUtils.requireNonBlank;
26 import static java.util.Objects.requireNonNull;
27
28 /**
29 * @author Andres Almiray
30 * @since 2.0.0
31 */
32 public class DefaultLanternaWindowDisplayHandler implements LanternaWindowDisplayHandler {
33 private static final String ERROR_NAME_BLANK = "Argument 'name' must not be null";
34 private static final String ERROR_WINDOW_NULL = "Argument 'window' must not be null";
35
36 private final GUIScreen screen;
37
38 @Inject
39 public DefaultLanternaWindowDisplayHandler(@Nonnull GUIScreen screen) {
40 this.screen = requireNonNull(screen, "Argument 'screen' must not be null");
41 }
42
43 public void show(@Nonnull String name, @Nonnull Window window) {
44 requireNonBlank(name, ERROR_NAME_BLANK);
45 requireNonNull(window, ERROR_WINDOW_NULL);
46 screen.showWindow(window, GUIScreen.Position.CENTER);
47 }
48
49 public void hide(@Nonnull String name, @Nonnull Window window) {
50 requireNonBlank(name, ERROR_NAME_BLANK);
51 requireNonNull(window, ERROR_WINDOW_NULL);
52 window.close();
53 }
54 }
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