com.intendia.rxgwt2.elemental.RxElemental Maven / Gradle / Ivy

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RxGWT core utilities.

There is a newer version: 2.3

package com.intendia.rxgwt2.elemental;

import elemental.dom.ElementalMixinBase;
import elemental.events.Event;
import elemental.events.EventTarget;
import io.reactivex.Observable;

public class RxElemental {

    public static Observable observe(ElementalMixinBase element, String type) {
        return observe(element, type, false);
    }

    public static Observable observe(ElementalMixinBase source, String type, boolean useCapture) {
        return Observable.create(s -> {
            elemental.events.EventListener listener = s::onNext;
            source.addEventListener(type, listener, useCapture);
            s.setCancellable(() -> source.removeEventListener(type, listener, useCapture));
        });
    }

    public static Observable observe(EventTarget element, String type) {
        return observe(element, type, false);
    }

    public static Observable observe(EventTarget element, String type, boolean useCapture) {
        return Observable.create(s -> {
            elemental.events.EventListener listener = s::onNext;
            element.addEventListener(type, listener, useCapture);
            s.setCancellable(() -> element.removeEventListener(type, listener, useCapture));
        });
    }
}