extract whether the comment is pinned

extractor/src/main/java/org/schabi/newpipe/extractor/comments/CommentsInfoItem.java

@@ -17,6 +17,7 @@ public class CommentsInfoItem extends InfoItem {
     private DateWrapper uploadDate;
     private int likeCount;
     private boolean heartedByUploader;
+    private boolean pinned;
 
     public CommentsInfoItem(int serviceId, String url, String name) {
         super(InfoType.COMMENT, serviceId, url, name);
@@ -94,4 +95,12 @@ public class CommentsInfoItem extends InfoItem {
     public boolean getHeartedByUploader() {
         return this.heartedByUploader;
     }
+
+    public boolean getPinned() {
+        return pinned;
+    }
+
+    public void setPinned(boolean pinned) {
+        this.pinned = pinned;
+    }
 }

extractor/src/main/java/org/schabi/newpipe/extractor/comments/CommentsInfoItemExtractor.java

@@ -11,6 +11,7 @@ public interface CommentsInfoItemExtractor extends InfoItemExtractor {
 
     /**
      * Return the like count of the comment, or -1 if it's unavailable
+     *
      * @see StreamExtractor#getLikeCount()
      */
     int getLikeCount() throws ParsingException;
@@ -22,12 +23,14 @@ public interface CommentsInfoItemExtractor extends InfoItemExtractor {
 
     /**
      * The upload date given by the service, unmodified
+     *
      * @see StreamExtractor#getTextualUploadDate()
      */
     String getTextualUploadDate() throws ParsingException;
 
     /**
      * The upload date wrapped with DateWrapper class
+     *
      * @see StreamExtractor#getUploadDate()
      */
     @Nullable
@@ -45,4 +48,9 @@ public interface CommentsInfoItemExtractor extends InfoItemExtractor {
      * Whether the comment has been hearted by the uploader
      */
     boolean getHeartedByUploader() throws ParsingException;
+
+    /**
+     * Whether the comment is pinned
+     */
+    boolean getPinned() throws ParsingException;
 }

extractor/src/main/java/org/schabi/newpipe/extractor/comments/CommentsInfoItemsCollector.java

@@ -76,6 +76,12 @@ public class CommentsInfoItemsCollector extends InfoItemsCollector<CommentsInfoI
             addError(e);
         }
 
+        try {
+            resultItem.setPinned(extractor.getPinned());
+        } catch (Exception e) {
+            addError(e);
+        }
+
         return resultItem;
     }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeCommentsInfoItemExtractor.java

@@ -93,6 +93,11 @@ public class PeertubeCommentsInfoItemExtractor implements CommentsInfoItemExtrac
         return false;
     }
 
+    @Override
+    public boolean getPinned() throws ParsingException {
+        return false;
+    }
+
     @Override
     public String getUploaderName() throws ParsingException {
         return JsonUtils.getString(item, "account.name") + "@" + JsonUtils.getString(item, "account.host");

extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudCommentsInfoItemExtractor.java

@@ -44,6 +44,11 @@ public class SoundcloudCommentsInfoItemExtractor implements CommentsInfoItemExtr
         return false;
     }
 
+    @Override
+    public boolean getPinned() throws ParsingException {
+        return false;
+    }
+
     @Override
     public String getUploaderUrl() {
         return json.getObject("user").getString("permalink_url");

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeCommentsInfoItemExtractor.java

@@ -120,6 +120,11 @@ public class YoutubeCommentsInfoItemExtractor implements CommentsInfoItemExtract
         return json.has("creatorHeart");
     }
 
+    @Override
+    public boolean getPinned() {
+        return json.has("pinnedCommentBadge");
+    }
+
     @Override
     public String getUploaderName() throws ParsingException {
         try {

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubeCommentsExtractorTest.java

@@ -189,4 +189,40 @@ public class YoutubeCommentsExtractorTest {
 
         }
     }
+
+    public static class Pinned {
+        private final static String url = "https://www.youtube.com/watch?v=bjFtFMilb34";
+        private static YoutubeCommentsExtractor extractor;
+
+        @BeforeClass
+        public static void setUp() throws Exception {
+            NewPipe.init(DownloaderTestImpl.getInstance());
+            extractor = (YoutubeCommentsExtractor) YouTube
+                    .getCommentsExtractor(url);
+            extractor.fetchPage();
+        }
+
+        @Test
+        public void testGetCommentsAllData() throws IOException, ExtractionException {
+            final InfoItemsPage<CommentsInfoItem> comments = extractor.getInitialPage();
+
+            DefaultTests.defaultTestListOfItems(YouTube, comments.getItems(), comments.getErrors());
+
+            for (CommentsInfoItem c : comments.getItems()) {
+                assertFalse(Utils.isBlank(c.getUploaderUrl()));
+                assertFalse(Utils.isBlank(c.getUploaderName()));
+                assertFalse(Utils.isBlank(c.getUploaderAvatarUrl()));
+                assertFalse(Utils.isBlank(c.getCommentId()));
+                assertFalse(Utils.isBlank(c.getName()));
+                assertFalse(Utils.isBlank(c.getTextualUploadDate()));
+                assertNotNull(c.getUploadDate());
+                assertFalse(Utils.isBlank(c.getThumbnailUrl()));
+                assertFalse(Utils.isBlank(c.getUrl()));
+                assertFalse(c.getLikeCount() < 0);
+                assertFalse(Utils.isBlank(c.getCommentText()));
+            }
+
+            assertTrue("First comment isn't pinned", comments.getItems().get(0).getPinned());
+        }
+    }
 }