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.beans.InvalidationListener;
19 import javafx.beans.value.ChangeListener;
20 import javafx.beans.value.ObservableValue;
21
22 import javax.annotation.Nonnull;
23
24 import static java.util.Objects.requireNonNull;
25
26 /**
27 * @author Andres Almiray
28 * @since 2.9.0
29 */
30 class UIThreadAwareObservableValue<T> implements ObservableValue<T>, UIThreadAware {
31 private final ObservableValue<T> delegate;
32
33 UIThreadAwareObservableValue(@Nonnull ObservableValue<T> delegate) {
34 this.delegate = requireNonNull(delegate, "Argument 'delegate' must not be null");
35 }
36
37 @Nonnull
38 protected ObservableValue<T> getDelegate() {
39 return delegate;
40 }
41
42 @Override
43 public T getValue() {
44 return delegate.getValue();
45 }
46
47 @Override
48 public void addListener(ChangeListener<? super T> listener) {
49 if (listener instanceof UIThreadAware) {
50 delegate.addListener(listener);
51 } else {
52 delegate.addListener(new UIThreadAwareChangeListener<>(listener));
53 }
54 }
55
56 @Override
57 public void removeListener(ChangeListener<? super T> listener) {
58 if (listener instanceof UIThreadAware) {
59 delegate.removeListener(listener);
60 } else {
61 delegate.removeListener(new UIThreadAwareChangeListener<>(listener));
62 }
63 }
64
65 @Override
66 public void addListener(InvalidationListener listener) {
67 if (listener instanceof UIThreadAware) {
68 delegate.addListener(listener);
69 } else {
70 delegate.addListener(new UIThreadAwareInvalidationListener(listener));
71 }
72 }
73
74 @Override
75 public void removeListener(InvalidationListener listener) {
76 if (listener instanceof UIThreadAware) {
77 delegate.removeListener(listener);
78 } else {
79 delegate.removeListener(new UIThreadAwareInvalidationListener(listener));
80 }
81 }
82
83 @Override
84 public boolean equals(Object o) {
85 return this == o || delegate.equals(o);
86 }
87
88 @Override
89 public int hashCode() {
90 return delegate.hashCode();
91 }
92
93 @Override
94 public String toString() {
95 return getClass().getName() + ":" + delegate.toString();
96 }
97 }
|