package com.jakewharton.rxbinding2.view;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import com.jakewharton.rxbinding2.InitialValueObservable;
import io.reactivex.Observer;
import io.reactivex.android.MainThreadDisposable;
final class ViewFocusChangeObservable extends InitialValueObservable<Boolean> {
private final View view;
ViewFocusChangeObservable(View view) {
this.view = view;
}
@Override protected void subscribeListener(Observer<? super Boolean> observer) {
Listener listener = new Listener(view, observer);
observer.onSubscribe(listener);
view.setOnFocusChangeListener(listener);
}
@Override protected Boolean getInitialValue() {
return view.hasFocus();
}
static final class Listener extends MainThreadDisposable implements OnFocusChangeListener {
private final View view;
private final Observer<? super Boolean> observer;
Listener(View view, Observer<? super Boolean> observer) {
this.view = view;
this.observer = observer;
}
@Override public void onFocusChange(View v, boolean hasFocus) {
if (!isDisposed()) {
observer.onNext(hasFocus);
}
}
@Override protected void onDispose() {
view.setOnFocusChangeListener(null);
}
}
}