rx.javafx.sources.NodeEventSource Maven / Gradle / Ivy

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/**
 * Copyright 2016 Netflix, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package rx.javafx.sources;

import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.event.EventType;
import javafx.scene.Node;
import rx.Observable;
import rx.Subscriber;
import rx.functions.Action0;
import rx.schedulers.JavaFxScheduler;
import rx.subscriptions.JavaFxSubscriptions;

public class NodeEventSource {
    /**
     * @see rx.observables.JavaFxObservable#fromNodeEvents
     */
    public static  Observable fromNodeEvents(final Node source, final EventType eventType) {

        return Observable.create(new Observable.OnSubscribe() {
            @Override
            public void call(final Subscriber subscriber) {
                final EventHandler handler = subscriber::onNext;

                source.addEventHandler(eventType, handler);

                subscriber.add(JavaFxSubscriptions.unsubscribeInEventDispatchThread(() -> source.removeEventHandler(eventType, handler)));
            }

        }).subscribeOn(JavaFxScheduler.getInstance());
    }
}