package com.jakewharton.rxbinding2.support.design.widget;
import android.support.design.widget.Snackbar;
import android.support.design.widget.Snackbar.Callback;
import io.reactivex.Observable;
import io.reactivex.Observer;
import io.reactivex.android.MainThreadDisposable;
import static com.jakewharton.rxbinding2.internal.Preconditions.checkMainThread;
final class SnackbarDismissesObservable extends Observable<Integer> {
private final Snackbar view;
SnackbarDismissesObservable(Snackbar view) {
this.view = view;
}
@Override protected void subscribeActual(Observer<? super Integer> observer) {
if (!checkMainThread(observer)) {
return;
}
Listener listener = new Listener(view, observer);
observer.onSubscribe(listener);
view.addCallback(listener.callback);
}
final class Listener extends MainThreadDisposable {
private final Snackbar snackbar;
final Callback callback;
Listener(Snackbar snackbar, final Observer<? super Integer> observer) {
this.snackbar = snackbar;
this.callback = new Callback() {
@Override public void onDismissed(Snackbar snackbar, int event) {
if (!isDisposed()) {
observer.onNext(event);
}
}
};
}
@Override protected void onDispose() {
snackbar.removeCallback(callback);
}
}
}