Display meta info about search query, stream creator or topic

app/build.gradle

@@ -179,7 +179,7 @@ dependencies {
 
     // NewPipe dependencies
     // You can use a local version by uncommenting a few lines in settings.gradle
-    implementation 'com.github.TeamNewPipe:NewPipeExtractor:85fa006214b003f21eacb76c445a167732f19981'
+    implementation 'com.github.TeamNewPipe:NewPipeExtractor:79b5aa9760da52020821b68e2af41a9238943304'
     implementation "com.github.TeamNewPipe:nanojson:1d9e1aea9049fc9f85e68b43ba39fe7be1c1f751"
 
     implementation "org.jsoup:jsoup:1.13.1"

app/src/main/java/org/schabi/newpipe/fragments/MainFragment.java

@@ -3,7 +3,6 @@
 import android.content.Context;
 import android.content.res.ColorStateList;
 import android.os.Bundle;
-import androidx.preference.PreferenceManager;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -19,6 +18,7 @@
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentStatePagerAdapterMenuWorkaround;
+import androidx.preference.PreferenceManager;
 import androidx.viewpager.widget.ViewPager;
 
 import com.google.android.material.tabs.TabLayout;

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -16,7 +16,6 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.provider.Settings;
-import android.text.TextUtils;
 import android.text.util.Linkify;
 import android.util.DisplayMetrics;
 import android.util.Log;
@@ -122,12 +121,14 @@
 import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
+import static android.text.TextUtils.isEmpty;
 import static org.schabi.newpipe.extractor.StreamingService.ServiceInfo.MediaCapability.COMMENTS;
 import static org.schabi.newpipe.extractor.stream.StreamExtractor.NO_AGE_LIMIT;
 import static org.schabi.newpipe.player.helper.PlayerHelper.globalScreenOrientationLocked;
 import static org.schabi.newpipe.player.helper.PlayerHelper.isClearingQueueConfirmationRequired;
 import static org.schabi.newpipe.player.playqueue.PlayQueueItem.RECOVERY_UNSET;
 import static org.schabi.newpipe.util.AnimationUtils.animateView;
+import static org.schabi.newpipe.util.ExtractorHelper.showMetaInfoInTextView;
 
 public final class VideoDetailFragment
         extends BaseStateFragment<StreamInfo>
@@ -218,6 +219,9 @@ public final class VideoDetailFragment
     private TextView detailDurationView;
     private TextView detailPositionView;
 
+    private View detailMetaInfoSeparator;
+    private TextView detailMetaInfoTextView;
+
     private LinearLayout videoDescriptionRootLayout;
     private TextView videoUploadDateView;
     private TextView videoDescriptionView;
@@ -508,8 +512,8 @@ public void onClick(final View v) {
                 }
                 break;
             case R.id.detail_uploader_root_layout:
-                if (TextUtils.isEmpty(currentInfo.getSubChannelUrl())) {
-                    if (!TextUtils.isEmpty(currentInfo.getUploaderUrl())) {
+                if (isEmpty(currentInfo.getSubChannelUrl())) {
+                    if (!isEmpty(currentInfo.getUploaderUrl())) {
                         openChannel(currentInfo.getUploaderUrl(), currentInfo.getUploaderName());
                     }
 
@@ -583,7 +587,7 @@ public boolean onLongClick(final View v) {
                 }
                 break;
             case R.id.detail_uploader_root_layout:
-                if (TextUtils.isEmpty(currentInfo.getSubChannelUrl())) {
+                if (isEmpty(currentInfo.getSubChannelUrl())) {
                     Log.w(TAG,
                             "Can't open parent channel because we got no parent channel URL");
                 } else {
@@ -644,6 +648,9 @@ protected void initViews(final View rootView, final Bundle savedInstanceState) {
         detailDurationView = rootView.findViewById(R.id.detail_duration_view);
         detailPositionView = rootView.findViewById(R.id.detail_position_view);
 
+        detailMetaInfoSeparator = rootView.findViewById(R.id.detail_meta_info_separator);
+        detailMetaInfoTextView = rootView.findViewById(R.id.detail_meta_info_text_view);
+
         videoDescriptionRootLayout = rootView.findViewById(R.id.detail_description_root_layout);
         videoUploadDateView = rootView.findViewById(R.id.detail_upload_date_view);
         videoDescriptionView = rootView.findViewById(R.id.detail_description_view);
@@ -748,7 +755,7 @@ private View.OnTouchListener getOnControlsTouchListener() {
     private void initThumbnailViews(@NonNull final StreamInfo info) {
         thumbnailImageView.setImageResource(R.drawable.dummy_thumbnail_dark);
 
-        if (!TextUtils.isEmpty(info.getThumbnailUrl())) {
+        if (!isEmpty(info.getThumbnailUrl())) {
             final String infoServiceName = NewPipe.getNameOfService(info.getServiceId());
             final ImageLoadingListener onFailListener = new SimpleImageLoadingListener() {
                 @Override
@@ -763,12 +770,12 @@ public void onLoadingFailed(final String imageUri, final View view,
                     ImageDisplayConstants.DISPLAY_THUMBNAIL_OPTIONS, onFailListener);
         }
 
-        if (!TextUtils.isEmpty(info.getSubChannelAvatarUrl())) {
+        if (!isEmpty(info.getSubChannelAvatarUrl())) {
             IMAGE_LOADER.displayImage(info.getSubChannelAvatarUrl(), subChannelThumb,
                     ImageDisplayConstants.DISPLAY_AVATAR_OPTIONS);
         }
 
-        if (!TextUtils.isEmpty(info.getUploaderAvatarUrl())) {
+        if (!isEmpty(info.getUploaderAvatarUrl())) {
             IMAGE_LOADER.displayImage(info.getUploaderAvatarUrl(), uploaderThumb,
                     ImageDisplayConstants.DISPLAY_AVATAR_OPTIONS);
         }
@@ -1217,7 +1224,7 @@ private void makeDefaultHeightForVideoPlaceholder() {
     }
 
     private void prepareDescription(final Description description) {
-        if (description == null || TextUtils.isEmpty(description.getContent())
+        if (description == null || isEmpty(description.getContent())
                 || description == Description.emptyDescription) {
             return;
         }
@@ -1462,9 +1469,9 @@ public void handleResult(@NonNull final StreamInfo info) {
         animateView(thumbnailPlayButton, true, 200);
         videoTitleTextView.setText(title);
 
-        if (!TextUtils.isEmpty(info.getSubChannelName())) {
+        if (!isEmpty(info.getSubChannelName())) {
             displayBothUploaderAndSubChannel(info);
-        } else if (!TextUtils.isEmpty(info.getUploaderName())) {
+        } else if (!isEmpty(info.getUploaderName())) {
             displayUploaderAsSubChannel(info);
         } else {
             uploaderTextView.setVisibility(View.GONE);
@@ -1559,6 +1566,8 @@ public void handleResult(@NonNull final StreamInfo info) {
         prepareDescription(info.getDescription());
         updateProgressInfo(info);
         initThumbnailViews(info);
+        showMetaInfoInTextView(info.getMetaInfo(), detailMetaInfoTextView, detailMetaInfoSeparator);
+
 
         if (player == null || player.isPlayerStopped()) {
             updateOverlayData(info.getName(), info.getUploaderName(), info.getThumbnailUrl());
@@ -1610,7 +1619,7 @@ private void displayBothUploaderAndSubChannel(final StreamInfo info) {
 
         subChannelThumb.setVisibility(View.VISIBLE);
 
-        if (!TextUtils.isEmpty(info.getUploaderName())) {
+        if (!isEmpty(info.getUploaderName())) {
             uploaderTextView.setText(
                     String.format(getString(R.string.video_detail_by), info.getUploaderName()));
             uploaderTextView.setVisibility(View.VISIBLE);
@@ -2305,10 +2314,10 @@ public void onSlide(@NonNull final View bottomSheet, final float slideOffset) {
     private void updateOverlayData(@Nullable final String overlayTitle,
                                    @Nullable final String uploader,
                                    @Nullable final String thumbnailUrl) {
-        overlayTitleTextView.setText(TextUtils.isEmpty(overlayTitle) ? "" : overlayTitle);
-        overlayChannelTextView.setText(TextUtils.isEmpty(uploader) ? "" : uploader);
+        overlayTitleTextView.setText(isEmpty(title) ? "" : title);
+        overlayChannelTextView.setText(isEmpty(uploader) ? "" : uploader);
         overlayThumbnailImageView.setImageResource(R.drawable.dummy_thumbnail_dark);
-        if (!TextUtils.isEmpty(thumbnailUrl)) {
+        if (!isEmpty(thumbnailUrl)) {
             IMAGE_LOADER.displayImage(thumbnailUrl, overlayThumbnailImageView,
                     ImageDisplayConstants.DISPLAY_THUMBNAIL_OPTIONS, null);
         }

app/src/main/java/org/schabi/newpipe/fragments/list/search/SearchFragment.java

@@ -39,6 +39,7 @@
 import org.schabi.newpipe.database.history.model.SearchHistoryEntry;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.ListExtractor;
+import org.schabi.newpipe.extractor.MetaInfo;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.Page;
 import org.schabi.newpipe.extractor.StreamingService;
@@ -79,6 +80,7 @@
 import static androidx.recyclerview.widget.ItemTouchHelper.Callback.makeMovementFlags;
 import static java.util.Arrays.asList;
 import static org.schabi.newpipe.util.AnimationUtils.animateView;
+import static org.schabi.newpipe.util.ExtractorHelper.showMetaInfoInTextView;
 
 public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.InfoItemsPage<?>>
         implements BackPressable {
@@ -129,6 +131,9 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     @State
     boolean isCorrectedSearch;
 
+    @State
+    MetaInfo[] metaInfo;
+
     @State
     boolean wasSearchFocused = false;
 
@@ -153,6 +158,8 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     private View searchClear;
 
     private TextView correctSuggestion;
+    private TextView metaInfoTextView;
+    private View metaInfoSeparator;
 
     private View suggestionsPanel;
     private boolean suggestionsPanelVisible = false;
@@ -269,6 +276,9 @@ public void onResume() {
 
         handleSearchSuggestion();
 
+        showMetaInfoInTextView(metaInfo == null ? null : Arrays.asList(metaInfo),
+                    metaInfoTextView, metaInfoSeparator);
+
         if (suggestionDisposable == null || suggestionDisposable.isDisposed()) {
             initSuggestionObserver();
         }
@@ -353,6 +363,8 @@ public void onSwiped(@NonNull final RecyclerView.ViewHolder viewHolder, final in
         searchClear = searchToolbarContainer.findViewById(R.id.toolbar_search_clear);
 
         correctSuggestion = rootView.findViewById(R.id.correct_suggestion);
+        metaInfoTextView = rootView.findViewById(R.id.search_meta_info_text_view);
+        metaInfoSeparator = rootView.findViewById(R.id.search_meta_info_separator);
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -973,8 +985,14 @@ public void handleResult(@NonNull final SearchInfo result) {
         searchSuggestion = result.getSearchSuggestion();
         isCorrectedSearch = result.isCorrectedSearch();
 
+        // List<MetaInfo> cannot be bundled without creating some containers
+        metaInfo = new MetaInfo[result.getMetaInfo().size()];
+        metaInfo = result.getMetaInfo().toArray(metaInfo);
+
         handleSearchSuggestion();
 
+        showMetaInfoInTextView(result.getMetaInfo(), metaInfoTextView, metaInfoSeparator);
+
         lastSearchedString = searchString;
         nextPage = result.getNextPage();
 

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

@@ -22,16 +22,24 @@
 import android.content.Context;
 import android.content.Intent;
 import android.os.Handler;
+import android.text.method.LinkMovementMethod;
 import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.Nullable;
+import androidx.core.text.HtmlCompat;
+import androidx.preference.PreferenceManager;
+
 import org.schabi.newpipe.MainActivity;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.ReCaptchaActivity;
 import org.schabi.newpipe.extractor.Info;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.ListExtractor.InfoItemsPage;
 import org.schabi.newpipe.extractor.ListInfo;
+import org.schabi.newpipe.extractor.MetaInfo;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.Page;
 import org.schabi.newpipe.extractor.StreamingService;
@@ -60,6 +68,8 @@
 import io.reactivex.rxjava3.core.Maybe;
 import io.reactivex.rxjava3.core.Single;
 
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
+
 public final class ExtractorHelper {
     private static final String TAG = ExtractorHelper.class.getSimpleName();
     private static final InfoCache CACHE = InfoCache.getInstance();
@@ -306,4 +316,73 @@ public static void handleGeneralException(final Context context, final int servi
             }
         });
     }
+
+    /**
+     * Formats the text contained in the meta info list as HTML and puts it into the text view,
+     * while also making the separator visible. If the list is null or empty, or the user chose not
+     * to see meta information, both the text view and the separator are hidden
+     * @param metaInfos a list of meta information, can be null or empty
+     * @param metaInfoTextView the text view in which to show the formatted HTML
+     * @param metaInfoSeparator another view to be shown or hidden accordingly to the text view
+     */
+    public static void showMetaInfoInTextView(@Nullable final List<MetaInfo> metaInfos,
+                                              final TextView metaInfoTextView,
+                                              final View metaInfoSeparator) {
+        final Context context = metaInfoTextView.getContext();
+        final boolean showMetaInfo = PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(context.getString(R.string.show_meta_info_key), true);
+
+        if (!showMetaInfo || metaInfos == null || metaInfos.isEmpty()) {
+            metaInfoTextView.setVisibility(View.GONE);
+            metaInfoSeparator.setVisibility(View.GONE);
+
+        } else {
+            final StringBuilder stringBuilder = new StringBuilder();
+            for (final MetaInfo metaInfo : metaInfos) {
+                if (!isNullOrEmpty(metaInfo.getTitle())) {
+                    stringBuilder.append("<b>").append(metaInfo.getTitle()).append("</b>")
+                            .append(Localization.DOT_SEPARATOR);
+                }
+
+                String content = metaInfo.getContent().getContent().trim();
+                if (content.endsWith(".")) {
+                    content = content.substring(0, content.length() - 1); // remove . at end
+                }
+                stringBuilder.append(content);
+
+                for (int i = 0; i < metaInfo.getUrls().size(); i++) {
+                    if (i == 0) {
+                        stringBuilder.append(Localization.DOT_SEPARATOR);
+                    } else {
+                        stringBuilder.append("<br/><br/>");
+                    }
+
+                    stringBuilder
+                            .append("<a href=\"").append(metaInfo.getUrls().get(i)).append("\">")
+                            .append(capitalizeIfAllUppercase(metaInfo.getUrlTexts().get(i).trim()))
+                            .append("</a>");
+                }
+            }
+
+            metaInfoTextView.setText(HtmlCompat.fromHtml(stringBuilder.toString(),
+                    HtmlCompat.FROM_HTML_SEPARATOR_LINE_BREAK_HEADING));
+            metaInfoTextView.setMovementMethod(LinkMovementMethod.getInstance());
+            metaInfoTextView.setVisibility(View.VISIBLE);
+            metaInfoSeparator.setVisibility(View.VISIBLE);
+        }
+    }
+
+    private static String capitalizeIfAllUppercase(final String text) {
+        for (int i = 0; i < text.length(); i++) {
+            if (Character.isLowerCase(text.charAt(i))) {
+                return text; // there is at least a lowercase letter -> not all uppercase
+            }
+        }
+
+        if (text.isEmpty()) {
+            return text;
+        } else {
+            return text.substring(0, 1).toUpperCase() + text.substring(1).toLowerCase();
+        }
+    }
 }

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

@@ -57,7 +57,7 @@
 
 public final class Localization {
 
-    private static final String DOT_SEPARATOR = " • ";
+    public static final String DOT_SEPARATOR = " • ";
     private static PrettyTime prettyTime;
 
     private Localization() { }

app/src/main/res/layout-large-land/fragment_video_detail.xml

@@ -506,6 +506,23 @@
 
                         </LinearLayout>
 
+                        <View
+                            android:id="@+id/detail_meta_info_separator"
+                            android:layout_width="match_parent"
+                            android:layout_height="1px"
+                            android:layout_marginLeft="8dp"
+                            android:layout_marginRight="8dp"
+                            android:background="?attr/separator_color" />
+
+                        <TextView
+                            android:id="@+id/detail_meta_info_text_view"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:gravity="center"
+                            android:padding="12dp"
+                            android:textSize="@dimen/video_item_detail_description_text_size"
+                            tools:text="Stream meta info with link" />
+
                         <View
                             android:layout_width="match_parent"
                             android:layout_height="1px"