94 lines
3.5 KiB
Java
94 lines
3.5 KiB
Java
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/**
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package eu.kanade.mangafeed.util;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.os.Handler;
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import rx.Observable;
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import rx.Subscriber;
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import rx.Subscription;
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import rx.functions.Action0;
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import rx.subscriptions.Subscriptions;
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public final class ContentObservable {
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private ContentObservable() {
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throw new AssertionError("No instances");
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}
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/**
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* Create Observable that wraps BroadcastReceiver and emits received intents.
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*
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* @param filter Selects the Intent broadcasts to be received.
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*/
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public static Observable<Intent> fromBroadcast(Context context, IntentFilter filter){
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return Observable.create(new OnSubscribeBroadcastRegister(context, filter, null, null));
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}
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/**
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* Create Observable that wraps BroadcastReceiver and emits received intents.
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*
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* @param filter Selects the Intent broadcasts to be received.
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* @param broadcastPermission String naming a permissions that a
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* broadcaster must hold in order to send an Intent to you. If null,
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* no permission is required.
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* @param schedulerHandler Handler identifying the thread that will receive
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* the Intent. If null, the main thread of the process will be used.
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*/
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public static Observable<Intent> fromBroadcast(Context context, IntentFilter filter, String broadcastPermission, Handler schedulerHandler){
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return Observable.create(new OnSubscribeBroadcastRegister(context, filter, broadcastPermission, schedulerHandler));
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}
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static class OnSubscribeBroadcastRegister implements Observable.OnSubscribe<Intent> {
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private final Context context;
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private final IntentFilter intentFilter;
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private final String broadcastPermission;
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private final Handler schedulerHandler;
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public OnSubscribeBroadcastRegister(Context context, IntentFilter intentFilter, String broadcastPermission, Handler schedulerHandler) {
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this.context = context;
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this.intentFilter = intentFilter;
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this.broadcastPermission = broadcastPermission;
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this.schedulerHandler = schedulerHandler;
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}
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@Override
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public void call(final Subscriber<? super Intent> subscriber) {
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final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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subscriber.onNext(intent);
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}
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};
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final Subscription subscription = Subscriptions.create(new Action0() {
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@Override
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public void call() {
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context.unregisterReceiver(broadcastReceiver);
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}
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});
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subscriber.add(subscription);
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context.registerReceiver(broadcastReceiver, intentFilter, broadcastPermission, schedulerHandler);
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}
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}
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}
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