01 /*
02 * Copyright 2008-2017 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 griffon.javafx.beans.binding;
17
18 import javafx.collections.SetChangeListener;
19
20 import javax.annotation.Nonnull;
21
22 import static java.util.Objects.requireNonNull;
23 import static javafx.application.Platform.isFxApplicationThread;
24 import static javafx.application.Platform.runLater;
25
26 /**
27 * @author Andres Almiray
28 * @since 2.9.0
29 */
30 class UIThreadAwareSetChangeListener<E> implements SetChangeListener<E>, UIThreadAware {
31 private final SetChangeListener<E> delegate;
32
33 UIThreadAwareSetChangeListener(@Nonnull SetChangeListener<E> delegate) {
34 this.delegate = requireNonNull(delegate, "Argument 'delegate' must not be null");
35 }
36
37 @Override
38 public void onChanged(final Change<? extends E> change) {
39 if (isFxApplicationThread()) {
40 delegate.onChanged(change);
41 } else {
42 runLater(() -> onChanged(change));
43 }
44 }
45
46 @Override
47 public boolean equals(Object o) {
48 return this == o || delegate.equals(o);
49 }
50
51 @Override
52 public int hashCode() {
53 return delegate.hashCode();
54 }
55
56 @Override
57 public String toString() {
58 return getClass().getName() + ":" + delegate.toString();
59 }
60 }
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