mirror of https://github.com/TeamNewPipe/NewPipe
134 lines
4.2 KiB
Java
134 lines
4.2 KiB
Java
package org.schabi.newpipe.player.playqueue;
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import android.util.Log;
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import org.schabi.newpipe.extractor.InfoItem;
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import org.schabi.newpipe.extractor.ListExtractor;
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import org.schabi.newpipe.extractor.ListInfo;
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import org.schabi.newpipe.extractor.stream.StreamInfoItem;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import io.reactivex.SingleObserver;
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import io.reactivex.annotations.NonNull;
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import io.reactivex.disposables.Disposable;
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abstract class AbstractInfoPlayQueue<T extends ListInfo, U extends InfoItem> extends PlayQueue {
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boolean isInitial;
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boolean isComplete;
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final int serviceId;
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final String baseUrl;
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String nextUrl;
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transient Disposable fetchReactor;
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AbstractInfoPlayQueue(final U item) {
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this(item.getServiceId(), item.getUrl(), null, Collections.emptyList(), 0);
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}
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AbstractInfoPlayQueue(final int serviceId,
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final String url,
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final String nextPageUrl,
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final List<StreamInfoItem> streams,
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final int index) {
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super(index, extractListItems(streams));
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this.baseUrl = url;
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this.nextUrl = nextPageUrl;
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this.serviceId = serviceId;
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this.isInitial = streams.isEmpty();
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this.isComplete = !isInitial && (nextPageUrl == null || nextPageUrl.isEmpty());
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}
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abstract protected String getTag();
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@Override
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public boolean isComplete() {
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return isComplete;
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}
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SingleObserver<T> getHeadListObserver() {
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return new SingleObserver<T>() {
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@Override
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public void onSubscribe(@NonNull Disposable d) {
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if (isComplete || !isInitial || (fetchReactor != null && !fetchReactor.isDisposed())) {
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d.dispose();
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} else {
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fetchReactor = d;
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}
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}
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@Override
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public void onSuccess(@NonNull T result) {
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isInitial = false;
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if (!result.hasNextPage()) isComplete = true;
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nextUrl = result.getNextPageUrl();
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append(extractListItems(result.getRelatedItems()));
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fetchReactor.dispose();
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fetchReactor = null;
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}
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@Override
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public void onError(@NonNull Throwable e) {
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Log.e(getTag(), "Error fetching more playlist, marking playlist as complete.", e);
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isComplete = true;
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append(); // Notify change
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}
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};
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}
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SingleObserver<ListExtractor.InfoItemsPage> getNextPageObserver() {
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return new SingleObserver<ListExtractor.InfoItemsPage>() {
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@Override
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public void onSubscribe(@NonNull Disposable d) {
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if (isComplete || isInitial || (fetchReactor != null && !fetchReactor.isDisposed())) {
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d.dispose();
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} else {
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fetchReactor = d;
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}
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}
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@Override
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public void onSuccess(@NonNull ListExtractor.InfoItemsPage result) {
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if (!result.hasNextPage()) isComplete = true;
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nextUrl = result.getNextPageUrl();
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append(extractListItems(result.getItems()));
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fetchReactor.dispose();
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fetchReactor = null;
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}
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@Override
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public void onError(@NonNull Throwable e) {
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Log.e(getTag(), "Error fetching more playlist, marking playlist as complete.", e);
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isComplete = true;
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append(); // Notify change
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}
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};
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}
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@Override
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public void dispose() {
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super.dispose();
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if (fetchReactor != null) fetchReactor.dispose();
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fetchReactor = null;
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}
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private static List<PlayQueueItem> extractListItems(final List<StreamInfoItem> infos) {
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List<PlayQueueItem> result = new ArrayList<>();
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for (final InfoItem stream : infos) {
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if (stream instanceof StreamInfoItem) {
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result.add(new PlayQueueItem((StreamInfoItem) stream));
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}
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}
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return result;
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}
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}
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