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1   /*
2    * *************************************************************************************************************************************************************
3    *
4    * SteelBlue: DCI User Interfaces
5    * http://tidalwave.it/projects/steelblue
6    *
7    * Copyright (C) 2015 - 2024 by Tidalwave s.a.s. (http://tidalwave.it)
8    *
9    * *************************************************************************************************************************************************************
10   *
11   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
12   * You may obtain a copy of the License at
13   *
14   *     http://www.apache.org/licenses/LICENSE-2.0
15   *
16   * 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
17   * CONDITIONS OF ANY KIND, either express or implied.  See the License for the specific language governing permissions and limitations under the License.
18   *
19   * *************************************************************************************************************************************************************
20   *
21   * git clone https://bitbucket.org/tidalwave/steelblue-src
22   * git clone https://github.com/tidalwave-it/steelblue-src
23   *
24   * *************************************************************************************************************************************************************
25   */
26  package it.tidalwave.ui.javafx;
27  
28  import javax.annotation.Nonnull;
29  import java.io.IOException;
30  import javafx.fxml.FXMLLoader;
31  import javafx.scene.Node;
32  import javafx.application.Platform;
33  import it.tidalwave.util.ReflectionUtils;
34  import lombok.Getter;
35  import lombok.RequiredArgsConstructor;
36  import lombok.extern.slf4j.Slf4j;
37  import static lombok.AccessLevel.PRIVATE;
38  
39  /***************************************************************************************************************************************************************
40   *
41   * @author  Fabrizio Giudici
42   *
43   **************************************************************************************************************************************************************/
44  @RequiredArgsConstructor(access = PRIVATE) @Getter @Slf4j
45  public final class NodeAndDelegate<T>
46    {
47      @Nonnull
48      private final Node node;
49  
50      @Nonnull
51      private final T delegate;
52  
53      @Nonnull
54      public static <T> NodeAndDelegate<T> load (@Nonnull final Class<T> clazz, @Nonnull final String resource)
55              throws IOException
56        {
57          log.debug("NodeAndDelegate({}, {})", clazz, resource);
58          assert Platform.isFxApplicationThread() : "Not in JavaFX UI Thread";
59          final var loader = new FXMLLoader(clazz.getResource(resource), null, null,
60                                            type -> ReflectionUtils.instantiateWithDependencies(type, JavaFXSafeProxyCreator.BEANS));
61          final Node node = loader.load();
62          final T jfxController = loader.getController();
63          ReflectionUtils.injectDependencies(jfxController, JavaFXSafeProxyCreator.BEANS);
64          final var interfaces = jfxController.getClass().getInterfaces();
65  
66          if (interfaces.length == 0)
67            {
68              log.warn("{} has no interface: not creating safe proxy", jfxController.getClass());
69              log.debug(">>>> load({}, {}) completed", clazz, resource);
70              return new NodeAndDelegate<>(node, jfxController);
71            }
72          else
73            {
74              final var interfaceClass = (Class<T>)interfaces[0]; // FIXME
75              final var safeDelegate = JavaFXSafeProxyCreator.createSafeProxy(jfxController, interfaceClass);
76              log.debug(">>>> load({}, {}) completed", clazz, resource);
77              return new NodeAndDelegate<>(node, safeDelegate);
78            }
79        }
80    }