Apply feedback

Return this in InfoIrtemDialog.Builder methoods.
Move null checks for InfoIrtemDialog.Builder into constructor.
Fix and add some more docs.

app/src/main/java/org/schabi/newpipe/error/UserAction.java

@@ -28,8 +28,8 @@ public enum UserAction {
     DOWNLOAD_FAILED("download failed"),
     PREFERENCES_MIGRATION("migration of preferences"),
     SHARE_TO_NEWPIPE("share to newpipe"),
-    CHECK_FOR_NEW_APP_VERSION("check for new app version");
-
+    CHECK_FOR_NEW_APP_VERSION("check for new app version"),
+    OPEN_INFO_ITEM_DIALOG("open info item dialog");
 
     private final String message;
 

app/src/main/java/org/schabi/newpipe/fragments/list/BaseListFragment.java

@@ -3,7 +3,6 @@ package org.schabi.newpipe.fragments.list;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.ktx.ViewUtils.animateHideRecyclerViewAllowingScrolling;
 
-import android.app.Activity;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
@@ -30,8 +29,8 @@ import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.fragments.BaseStateFragment;
 import org.schabi.newpipe.fragments.OnScrollBelowItemsListener;
-import org.schabi.newpipe.info_list.InfoItemDialog;
 import org.schabi.newpipe.info_list.InfoListAdapter;
+import org.schabi.newpipe.info_list.dialog.InfoItemDialog;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
 import org.schabi.newpipe.util.StateSaver;
@@ -403,13 +402,11 @@ public abstract class BaseListFragment<I, N> extends BaseStateFragment<I>
     }
 
     protected void showInfoItemDialog(final StreamInfoItem item) {
-        final Context context = getContext();
-        final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || activity == null) {
-            return;
+        try {
+            new InfoItemDialog.Builder(getActivity(), getContext(), this, item).create().show();
+        } catch (final IllegalArgumentException e) {
+            InfoItemDialog.Builder.reportErrorDuringInitialization(e, item);
         }
-
-        new InfoItemDialog.Builder(activity, context, this, item).create().show();
     }
 
     /*//////////////////////////////////////////////////////////////////////////

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistFragment.java

@@ -3,7 +3,6 @@ package org.schabi.newpipe.fragments.list.playlist;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.ktx.ViewUtils.animateHideRecyclerViewAllowingScrolling;
 
-import android.app.Activity;
 import android.content.Context;
 import android.os.Bundle;
 import android.text.TextUtils;
@@ -137,20 +136,20 @@ public class PlaylistFragment extends BaseListInfoFragment<PlaylistInfo> {
     @Override
     protected void showInfoItemDialog(final StreamInfoItem item) {
         final Context context = getContext();
-        final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || activity == null) {
-            return;
-        }
-
+        try {
             final InfoItemDialog.Builder dialogBuilder =
-                new InfoItemDialog.Builder(activity, context, this, item);
-
-        dialogBuilder.setAction(StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND,
-                (fragment, infoItem) -> NavigationHelper.playOnBackgroundPlayer(
-                        context, getPlayQueueStartingAt(infoItem), true));
-
-        dialogBuilder.create().show();
+                    new InfoItemDialog.Builder(getActivity(), context, this, item);
 
+            dialogBuilder
+                    .setAction(
+                            StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND,
+                            (f, infoItem) -> NavigationHelper.playOnBackgroundPlayer(
+                                    context, getPlayQueueStartingAt(infoItem), true))
+                    .create()
+                    .show();
+        } catch (final IllegalArgumentException e) {
+            InfoItemDialog.Builder.reportErrorDuringInitialization(e, item);
+        }
     }
 
     @Override

app/src/main/java/org/schabi/newpipe/info_list/InfoItemDialog.java

@@ -1,8 +1,12 @@
 package org.schabi.newpipe.info_list;
 
+import static org.schabi.newpipe.MainActivity.DEBUG;
+
 import android.app.Activity;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.os.Build;
+import android.util.Log;
 import android.view.View;
 import android.widget.TextView;
 
@@ -11,7 +15,12 @@ import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.Fragment;
 import androidx.preference.PreferenceManager;
 
+import org.schabi.newpipe.App;
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.error.ErrorInfo;
+import org.schabi.newpipe.error.ErrorUtil;
+import org.schabi.newpipe.error.UserAction;
+import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.player.helper.PlayerHolder;
@@ -21,13 +30,15 @@ import org.schabi.newpipe.util.external_communication.KoreUtils;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Stream;
 
 /**
  * Dialog for a {@link StreamInfoItem}.
- * The dialog'S content are actions that can be performed on the {@link StreamInfoItem}.
+ * The dialog's content are actions that can be performed on the {@link StreamInfoItem}.
  * This dialog is mostly used for longpress context menus.
  */
 public final class InfoItemDialog {
+    private static final String TAG = Build.class.getSimpleName();
     /**
      * Ideally, {@link InfoItemDialog} would extend {@link AlertDialog}.
      * However, extending {@link AlertDialog} requires many additional lines
@@ -42,6 +53,7 @@ public final class InfoItemDialog {
                            @NonNull final StreamInfoItem info,
                            @NonNull final List<StreamDialogEntry> entries) {
 
+        // Create the dialog's title
         final View bannerView = View.inflate(activity, R.layout.dialog_title, null);
         bannerView.setSelected(true);
 
@@ -56,9 +68,11 @@ public final class InfoItemDialog {
             detailsView.setVisibility(View.GONE);
         }
 
+        // Get the entry's descriptions which are displayed in the dialog
         final String[] items = entries.stream()
                 .map(entry -> entry.getString(activity)).toArray(String[]::new);
 
+        // Call an entry's action / onClick method when the entry is selected.
         final DialogInterface.OnClickListener action = (d, index) ->
             entries.get(index).action.onClick(fragment, info);
 
@@ -96,7 +110,7 @@ public final class InfoItemDialog {
          * <pre>
          *     + - - - - - - - - - - - - - - - - - - - - - -+
          *     | ENQUEUE                                    |
-         *     | ENQUEUE_HERE                               |
+         *     | ENQUEUE_NEXT                               |
          *     | START_ON_BACKGROUND                        |
          *     | START_ON_POPUP                             |
          *     + - - - - - - - - - - - - - - - - - - - - - -+
@@ -118,10 +132,12 @@ public final class InfoItemDialog {
          * @param context
          * @param fragment
          * @param infoItem the item for this dialog; all entries and their actions work with
-         *                this {@link org.schabi.newpipe.extractor.InfoItem}
+         *                this {@link StreamInfoItem}
+         * @throws IllegalArgumentException if <code>activity, context</code>
+         *         or resources is <code>null</code>
          */
-        public Builder(@NonNull final Activity activity,
-                       @NonNull final Context context,
+        public Builder(final Activity activity,
+                       final Context context,
                        @NonNull final Fragment fragment,
                        @NonNull final StreamInfoItem infoItem) {
             this(activity, context, fragment, infoItem, true);
@@ -135,7 +151,7 @@ public final class InfoItemDialog {
          * <pre>
          *     + - - - - - - - - - - - - - - - - - - - - - -+
          *     | ENQUEUE                                    |
-         *     | ENQUEUE_HERE                               |
+         *     | ENQUEUE_NEXT                               |
          *     | START_ON_BACKGROUND                        |
          *     | START_ON_POPUP                             |
          *     + - - - - - - - - - - - - - - - - - - - - - -+
@@ -164,12 +180,21 @@ public final class InfoItemDialog {
          *        <br/>
          *        Entries added with {@link #addEntry(StreamDialogDefaultEntry)} and
          *        {@link #addAllEntries(StreamDialogDefaultEntry...)} are added in between.
+         * @throws IllegalArgumentException if <code>activity, context</code>
+         * or resources is <code>null</code>
          */
-        public Builder(@NonNull final Activity activity,
-                       @NonNull final Context context,
+        public Builder(final Activity activity,
+                       final Context context,
                        @NonNull final Fragment fragment,
                        @NonNull final StreamInfoItem infoItem,
                        final boolean addDefaultEntriesAutomatically) {
+            if (activity == null || context == null || context.getResources() == null) {
+                if (DEBUG) {
+                    Log.d(TAG, "activity, context or resources is null: activity = "
+                            + activity + ", context = " + context);
+                }
+                throw new IllegalArgumentException("activity, context or resources is null");
+            }
             this.activity = activity;
             this.context = context;
             this.fragment = fragment;
@@ -180,14 +205,24 @@ public final class InfoItemDialog {
             }
         }
 
-        public void addEntry(@NonNull final StreamDialogDefaultEntry entry) {
+        /**
+         * Adds a new entry and appends it to the current entry list.
+         * @param entry the entry to add
+         * @return the current {@link Builder} instance
+         */
+        public Builder addEntry(@NonNull final StreamDialogDefaultEntry entry) {
             entries.add(entry.toStreamDialogEntry());
+            return this;
         }
 
-        public void addAllEntries(@NonNull final StreamDialogDefaultEntry... newEntries) {
-            for (final StreamDialogDefaultEntry entry: newEntries) {
-                this.entries.add(entry.toStreamDialogEntry());
-            }
+        /**
+         * Adds new entries. These are appended to the current entry list.
+         * @param newEntries the entries to add
+         * @return the current {@link Builder} instance
+         */
+        public Builder addAllEntries(@NonNull final StreamDialogDefaultEntry... newEntries) {
+            Stream.of(newEntries).forEach(this::addEntry);
+            return this;
         }
 
         /**
@@ -197,23 +232,26 @@ public final class InfoItemDialog {
          * does not have an effect.</p>
          * @param entry the entry to change
          * @param action the action to perform when the entry is selected
+         * @return the current {@link Builder} instance
          */
-        public void setAction(@NonNull final StreamDialogDefaultEntry entry,
+        public Builder setAction(@NonNull final StreamDialogDefaultEntry entry,
                               @NonNull final StreamDialogEntry.StreamDialogEntryAction action) {
             for (int i = 0; i < entries.size(); i++) {
                 if (entries.get(i).resource == entry.resource) {
                     entries.set(i, new StreamDialogEntry(entry.resource, action));
-                    return;
+                    return this;
                 }
             }
+            return this;
         }
 
         /**
          * Adds {@link StreamDialogDefaultEntry#ENQUEUE} if the player is open and
          * {@link StreamDialogDefaultEntry#ENQUEUE_NEXT} if there are multiple streams
          * in the play queue.
+         * @return the current {@link Builder} instance
          */
-        public void addEnqueueEntriesIfNeeded() {
+        public Builder addEnqueueEntriesIfNeeded() {
             if (PlayerHolder.getInstance().isPlayerOpen()) {
                 addEntry(StreamDialogDefaultEntry.ENQUEUE);
 
@@ -221,26 +259,30 @@ public final class InfoItemDialog {
                     addEntry(StreamDialogDefaultEntry.ENQUEUE_NEXT);
                 }
             }
+            return this;
         }
 
         /**
          * Adds the {@link StreamDialogDefaultEntry#START_HERE_ON_BACKGROUND}.
          * If the {@link #infoItem} is not a pure audio (live) stream,
          * {@link StreamDialogDefaultEntry#START_HERE_ON_POPUP} is added, too.
+         * @return the current {@link Builder} instance
          */
-        public void addStartHereEntries() {
+        public Builder addStartHereEntries() {
             addEntry(StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND);
             if (infoItem.getStreamType() != StreamType.AUDIO_STREAM
                     && infoItem.getStreamType() != StreamType.AUDIO_LIVE_STREAM) {
                 addEntry(StreamDialogDefaultEntry.START_HERE_ON_POPUP);
             }
+            return this;
         }
 
         /**
          * Adds {@link StreamDialogDefaultEntry.MARK_AS_WATCHED} if the watch history is enabled
          * and the stream is not a livestream.
+         * @return the current {@link Builder} instance
          */
-        public void addMarkAsWatchedEntryIfNeeded() {
+        public Builder addMarkAsWatchedEntryIfNeeded() {
             final boolean isWatchHistoryEnabled = PreferenceManager
                     .getDefaultSharedPreferences(context)
                     .getBoolean(context.getString(R.string.enable_watch_history_key), false);
@@ -249,12 +291,18 @@ public final class InfoItemDialog {
                     && infoItem.getStreamType() != StreamType.AUDIO_LIVE_STREAM) {
                 addEntry(StreamDialogDefaultEntry.MARK_AS_WATCHED);
             }
+            return this;
         }
 
-        public void addPlayWithKodiEntryIfNeeded() {
+        /**
+         * Adds the {@link StreamDialogDefaultEntry.PLAY_WITH_KODI} entry if it is needed.
+         * @return the current {@link Builder} instance
+         */
+        public Builder addPlayWithKodiEntryIfNeeded() {
             if (KoreUtils.shouldShowPlayWithKodi(context, infoItem.getServiceId())) {
                 addEntry(StreamDialogDefaultEntry.PLAY_WITH_KODI);
             }
+            return this;
         }
 
         /**
@@ -262,16 +310,19 @@ public final class InfoItemDialog {
          * <br/>
          * This method adds the "enqueue" (see {@link #addEnqueueEntriesIfNeeded()})
          * and "start here" (see {@link #addStartHereEntries()} entries.
+         * @return the current {@link Builder} instance
          */
-        public void addDefaultBeginningEntries() {
+        public Builder addDefaultBeginningEntries() {
             addEnqueueEntriesIfNeeded();
             addStartHereEntries();
+            return this;
         }
 
         /**
          * Add the entries which are usually at the bottom of the action list.
+         * @return the current {@link Builder} instance
          */
-        public void addDefaultEndEntries() {
+        public Builder addDefaultEndEntries() {
             addAllEntries(
                     StreamDialogDefaultEntry.APPEND_PLAYLIST,
                     StreamDialogDefaultEntry.SHARE,
@@ -280,6 +331,7 @@ public final class InfoItemDialog {
             addPlayWithKodiEntryIfNeeded();
             addMarkAsWatchedEntryIfNeeded();
             addEntry(StreamDialogDefaultEntry.SHOW_CHANNEL_DETAILS);
+            return this;
         }
 
         /**
@@ -292,5 +344,14 @@ public final class InfoItemDialog {
             }
             return new InfoItemDialog(this.activity, this.fragment, this.infoItem, this.entries);
         }
+
+        public static void reportErrorDuringInitialization(final Throwable throwable,
+                                                           final InfoItem item) {
+            ErrorUtil.showSnackbar(App.getApp().getBaseContext(), new ErrorInfo(
+                    throwable,
+                    UserAction.OPEN_INFO_ITEM_DIALOG,
+                    "none",
+                    item.getServiceId()));
+        }
     }
 }

app/src/main/java/org/schabi/newpipe/local/history/StatisticsPlaylistFragment.java

@@ -1,6 +1,5 @@
 package org.schabi.newpipe.local.history;
 
-import android.app.Activity;
 import android.content.Context;
 import android.os.Bundle;
 import android.os.Parcelable;
@@ -326,26 +325,28 @@ public class StatisticsPlaylistFragment
 
     private void showInfoItemDialog(final StreamStatisticsEntry item) {
         final Context context = getContext();
-        final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || activity == null) {
-            return;
-        }
         final StreamInfoItem infoItem = item.toStreamInfoItem();
 
+        try {
             final InfoItemDialog.Builder dialogBuilder =
-                new InfoItemDialog.Builder(activity, context, this, infoItem);
+                    new InfoItemDialog.Builder(getActivity(), context, this, infoItem);
 
             // set entries in the middle; the others are added automatically
-        dialogBuilder.addEntry(StreamDialogDefaultEntry.DELETE);
-
-        // set custom actions
-        dialogBuilder.setAction(StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND,
-                (fragment, infoItemDuplicate) -> NavigationHelper
-                        .playOnBackgroundPlayer(context, getPlayQueueStartingAt(item), true));
-        dialogBuilder.setAction(StreamDialogDefaultEntry.DELETE, (fragment, infoItemDuplicate) ->
-                deleteEntry(Math.max(itemListAdapter.getItemsList().indexOf(item), 0)));
-
-        dialogBuilder.create().show();
+            dialogBuilder
+                    .addEntry(StreamDialogDefaultEntry.DELETE)
+                    .setAction(
+                            StreamDialogDefaultEntry.DELETE,
+                            (f, i) -> deleteEntry(
+                                    Math.max(itemListAdapter.getItemsList().indexOf(item), 0)))
+                    .setAction(
+                            StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND,
+                            (f, i) -> NavigationHelper.playOnBackgroundPlayer(
+                                    context, getPlayQueueStartingAt(item), true))
+                    .create()
+                    .show();
+        } catch (final IllegalArgumentException e) {
+            InfoItemDialog.Builder.reportErrorDuringInitialization(e, infoItem);
+        }
     }
 
     private void deleteEntry(final int index) {

app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java

@@ -3,7 +3,6 @@ package org.schabi.newpipe.local.playlist;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.util.ThemeHelper.shouldUseGridLayout;
 
-import android.app.Activity;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.os.Bundle;
@@ -740,15 +739,12 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
     }
 
     protected void showInfoItemDialog(final PlaylistStreamEntry item) {
-        final Context context = getContext();
-        final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || activity == null) {
-            return;
-        }
         final StreamInfoItem infoItem = item.toStreamInfoItem();
 
+        try {
+            final Context context = getContext();
             final InfoItemDialog.Builder dialogBuilder =
-                new InfoItemDialog.Builder(activity, context, this, infoItem);
+                    new InfoItemDialog.Builder(getActivity(), context, this, infoItem);
 
             // add entries in the middle
             dialogBuilder.addAllEntries(
@@ -756,17 +752,25 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
                     StreamDialogDefaultEntry.DELETE
             );
 
-        // set custom actions; all entries modified here have already been added within the builder
-        dialogBuilder.setAction(StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND,
-                (fragment, infoItemDuplicate) -> NavigationHelper.playOnBackgroundPlayer(
-                        context, getPlayQueueStartingAt(item), true));
-        dialogBuilder.setAction(StreamDialogDefaultEntry.SET_AS_PLAYLIST_THUMBNAIL,
-                (fragment, infoItemDuplicate) ->
-                        changeThumbnailUrl(item.getStreamEntity().getThumbnailUrl()));
-        dialogBuilder.setAction(StreamDialogDefaultEntry.DELETE,
-                (fragment, infoItemDuplicate) -> deleteItem(item));
-
-        dialogBuilder.create().show();
+            // set custom actions
+            // all entries modified below have already been added within the builder
+            dialogBuilder
+                    .setAction(
+                            StreamDialogDefaultEntry.START_HERE_ON_BACKGROUND,
+                            (f, i) -> NavigationHelper.playOnBackgroundPlayer(
+                                    context, getPlayQueueStartingAt(item), true))
+                    .setAction(
+                            StreamDialogDefaultEntry.SET_AS_PLAYLIST_THUMBNAIL,
+                            (f, i) ->
+                                    changeThumbnailUrl(item.getStreamEntity().getThumbnailUrl()))
+                    .setAction(
+                            StreamDialogDefaultEntry.DELETE,
+                            (f, i) -> deleteItem(item))
+                    .create()
+                    .show();
+        } catch (final IllegalArgumentException e) {
+            InfoItemDialog.Builder.reportErrorDuringInitialization(e, infoItem);
+        }
     }
 
     private void setInitialData(final long pid, final String title) {

app/src/main/java/org/schabi/newpipe/util/StreamDialogDefaultEntry.java

@@ -1,13 +1,14 @@
 package org.schabi.newpipe.util;
 
 import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
+import static org.schabi.newpipe.util.StreamDialogEntry.fetchItemInfoIfSparse;
+import static org.schabi.newpipe.util.StreamDialogEntry.openChannelFragment;
 
 import android.net.Uri;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.StringRes;
-import androidx.fragment.app.Fragment;
 
 import org.schabi.newpipe.NewPipeDatabase;
 import org.schabi.newpipe.R;
@@ -15,11 +16,9 @@ import org.schabi.newpipe.database.stream.model.StreamEntity;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.UserAction;
-import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.local.dialog.PlaylistAppendDialog;
 import org.schabi.newpipe.local.dialog.PlaylistDialog;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
-import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.util.external_communication.KoreUtils;
 import org.schabi.newpipe.util.external_communication.ShareUtils;
 
@@ -73,32 +72,45 @@ public enum StreamDialogDefaultEntry {
     }),
 
     /**
-     * Enqueues the stream automatically to the current PlayerType.<br>
-     * <br>
-     * Info: Add this entry within showStreamDialog.
+     * Enqueues the stream automatically to the current PlayerType.
      */
     ENQUEUE(R.string.enqueue_stream, (fragment, item) ->
-        NavigationHelper.enqueueOnPlayer(fragment.getContext(), new SinglePlayQueue(item))
+            fetchItemInfoIfSparse(fragment.requireContext(), item, singlePlayQueue ->
+                NavigationHelper.enqueueOnPlayer(fragment.getContext(), singlePlayQueue))
     ),
 
+    /**
+     * Enqueues the stream automatically to the current PlayerType
+     * after the currently playing stream.
+     */
     ENQUEUE_NEXT(R.string.enqueue_next_stream, (fragment, item) ->
-        NavigationHelper.enqueueNextOnPlayer(fragment.getContext(), new SinglePlayQueue(item))
+            fetchItemInfoIfSparse(fragment.requireContext(), item, singlePlayQueue ->
+                NavigationHelper.enqueueNextOnPlayer(fragment.getContext(), singlePlayQueue))
     ),
 
     START_HERE_ON_BACKGROUND(R.string.start_here_on_background, (fragment, item) ->
-            NavigationHelper.playOnBackgroundPlayer(fragment.getContext(),
-                    new SinglePlayQueue(item), true)),
+            fetchItemInfoIfSparse(fragment.requireContext(), item, singlePlayQueue ->
+                NavigationHelper.playOnBackgroundPlayer(
+                        fragment.getContext(), singlePlayQueue, true))),
 
     START_HERE_ON_POPUP(R.string.start_here_on_popup, (fragment, item) ->
-            NavigationHelper.playOnPopupPlayer(fragment.getContext(),
-                    new SinglePlayQueue(item), true)),
+            fetchItemInfoIfSparse(fragment.requireContext(), item, singlePlayQueue ->
+                NavigationHelper.playOnPopupPlayer(fragment.getContext(), singlePlayQueue, true))),
 
     SET_AS_PLAYLIST_THUMBNAIL(R.string.set_as_playlist_thumbnail, (fragment, item) -> {
-    }), // has to be set manually
+        throw new UnsupportedOperationException("This needs to be implemented manually "
+                + "by using InfoItemDialog.Builder.setAction()");
+    }),
 
     DELETE(R.string.delete, (fragment, item) -> {
-    }), // has to be set manually
+        throw new UnsupportedOperationException("This needs to be implemented manually "
+                + "by using InfoItemDialog.Builder.setAction()");
+    }),
 
+    /**
+     * Opens a {@link PlaylistDialog} to either append the stream to a playlist
+     * or create a new playlist if there are no local playlists.
+     */
     APPEND_PLAYLIST(R.string.add_to_playlist, (fragment, item) ->
         PlaylistDialog.createCorrespondingDialog(
                 fragment.getContext(),
@@ -154,12 +166,4 @@ public enum StreamDialogDefaultEntry {
         return new StreamDialogEntry(resource, action);
     }
 
-    private static void openChannelFragment(@NonNull final Fragment fragment,
-                                            @NonNull final StreamInfoItem item,
-                                            final String uploaderUrl) {
-        // For some reason `getParentFragmentManager()` doesn't work, but this does.
-        NavigationHelper.openChannelFragment(
-                fragment.requireActivity().getSupportFragmentManager(),
-                item.getServiceId(), uploaderUrl, item.getUploaderName());
-    }
 }

app/src/main/java/org/schabi/newpipe/util/StreamDialogEntry.java

@@ -2,16 +2,22 @@ package org.schabi.newpipe.util;
 
 import android.content.Context;
 
-
 import androidx.annotation.NonNull;
 import androidx.annotation.StringRes;
 import androidx.fragment.app.Fragment;
 
+import org.schabi.newpipe.error.ErrorInfo;
+import org.schabi.newpipe.error.ErrorUtil;
+import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
+import org.schabi.newpipe.extractor.stream.StreamType;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 
 import java.util.function.Consumer;
 
-import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
+import io.reactivex.rxjava3.schedulers.Schedulers;
 
 public class StreamDialogEntry {
 
@@ -33,4 +39,61 @@ public class StreamDialogEntry {
     public interface StreamDialogEntryAction {
         void onClick(Fragment fragment, StreamInfoItem infoItem);
     }
+
+    public static void openChannelFragment(@NonNull final Fragment fragment,
+                                            @NonNull final StreamInfoItem item,
+                                            final String uploaderUrl) {
+        // For some reason `getParentFragmentManager()` doesn't work, but this does.
+        NavigationHelper.openChannelFragment(
+                fragment.requireActivity().getSupportFragmentManager(),
+                item.getServiceId(), uploaderUrl, item.getUploaderName());
+    }
+
+    /**
+     * Fetches a {@link StreamInfoItem} if it is incomplete and executes the callback.
+     * <br />
+     * This method is required if the info has been fetched
+     * via a {@link org.schabi.newpipe.extractor.feed.FeedExtractor}.
+     * FeedExtractors provide a fast and lightweight method to fetch info,
+     * but the info might be incomplete
+     * (see {@link org.schabi.newpipe.local.feed.service.FeedLoadService} for more details).
+     * @param context
+     * @param item the item which is checked and eventually loaded completely
+     * @param callback
+     */
+    public static void fetchItemInfoIfSparse(@NonNull final Context context,
+                                             @NonNull final StreamInfoItem item,
+                                             @NonNull final Consumer<SinglePlayQueue> callback) {
+        if (!(item.getStreamType() == StreamType.LIVE_STREAM
+                || item.getStreamType() == StreamType.AUDIO_LIVE_STREAM)
+                && item.getDuration() < 0) {
+            // Sparse item: fetched by fast fetch
+            ExtractorHelper.getStreamInfo(
+                    item.getServiceId(),
+                    item.getUrl(),
+                    false
+            )
+                    .subscribeOn(Schedulers.io())
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .subscribe(result -> {
+                        final HistoryRecordManager recordManager =
+                                new HistoryRecordManager(context);
+                        recordManager.saveStreamState(result, 0)
+                                .subscribeOn(Schedulers.io())
+                                .observeOn(AndroidSchedulers.mainThread())
+                                .doOnError(throwable -> ErrorUtil.showSnackbar(
+                                        context,
+                                        new ErrorInfo(throwable, UserAction.REQUESTED_STREAM,
+                                                item.getUrl(), item.getServiceId())))
+                                .subscribe();
+
+                        callback.accept(new SinglePlayQueue(result));
+                    }, throwable -> ErrorUtil.createNotification(context,
+                            new ErrorInfo(throwable, UserAction.REQUESTED_CHANNEL,
+                                    "Could not fetch missing stream info")));
+        } else {
+            callback.accept(new SinglePlayQueue(item));
+        }
+    }
+
 }