Mark WebvttCue constructors private

Everyone should use the Builder.

PiperOrigin-RevId: 276468354

library/core/src/main/java/com/google/android/exoplayer2/text/webvtt/WebvttCue.java

@@ -16,7 +16,6 @@
 package com.google.android.exoplayer2.text.webvtt;
 
 import android.text.Layout.Alignment;
-import android.text.SpannableStringBuilder;
 import com.google.android.exoplayer2.text.Cue;
 import com.google.android.exoplayer2.util.Log;
 
@@ -28,18 +27,17 @@ public final class WebvttCue extends Cue {
   public final long startTime;
   public final long endTime;
 
-  public WebvttCue(CharSequence text) {
-    this(0, 0, text);
-  }
-
-  public WebvttCue(long startTime, long endTime, CharSequence text) {
-    this(startTime, endTime, text, null, Cue.DIMEN_UNSET, Cue.TYPE_UNSET, Cue.TYPE_UNSET,
-        Cue.DIMEN_UNSET, Cue.TYPE_UNSET, Cue.DIMEN_UNSET);
-  }
-
-  public WebvttCue(long startTime, long endTime, CharSequence text, Alignment textAlignment,
-      float line, @Cue.LineType int lineType, @Cue.AnchorType int lineAnchor, float position,
-      @Cue.AnchorType int positionAnchor, float width) {
+  private WebvttCue(
+      long startTime,
+      long endTime,
+      CharSequence text,
+      Alignment textAlignment,
+      float line,
+      @Cue.LineType int lineType,
+      @Cue.AnchorType int lineAnchor,
+      float position,
+      @Cue.AnchorType int positionAnchor,
+      float width) {
     super(text, textAlignment, line, lineType, lineAnchor, position, positionAnchor, width);
     this.startTime = startTime;
     this.endTime = endTime;
@@ -65,7 +63,7 @@ public final class WebvttCue extends Cue {
 
     private long startTime;
     private long endTime;
-    private SpannableStringBuilder text;
+    private CharSequence text;
     private Alignment textAlignment;
     private float line;
     private int lineType;
@@ -113,8 +111,8 @@ public final class WebvttCue extends Cue {
       return this;
     }
 
-    public Builder setText(SpannableStringBuilder aText) {
-      text = aText;
+    public Builder setText(CharSequence text) {
+      this.text = text;
       return this;
     }
 

library/core/src/main/java/com/google/android/exoplayer2/text/webvtt/WebvttSubtitle.java

@@ -102,7 +102,7 @@ import java.util.List;
     }
     if (normalCueTextBuilder != null) {
       // there were multiple normal cues, so create a new cue with all of the text
-      list.add(new WebvttCue(normalCueTextBuilder));
+      list.add(new WebvttCue.Builder().setText(normalCueTextBuilder).build());
     } else if (firstNormalCue != null) {
       // there was only a single normal cue, so just add it to the list
       list.add(firstNormalCue);

library/core/src/test/java/com/google/android/exoplayer2/text/webvtt/WebvttSubtitleTest.java

@@ -39,31 +39,64 @@ public class WebvttSubtitleTest {
   private static final WebvttSubtitle emptySubtitle = new WebvttSubtitle(Collections.emptyList());
 
   private static final WebvttSubtitle simpleSubtitle;
+
   static {
     ArrayList<WebvttCue> simpleSubtitleCues = new ArrayList<>();
-    WebvttCue firstCue = new WebvttCue(1000000, 2000000, FIRST_SUBTITLE_STRING);
+    WebvttCue firstCue =
+        new WebvttCue.Builder()
+            .setStartTime(1000000)
+            .setEndTime(2000000)
+            .setText(FIRST_SUBTITLE_STRING)
+            .build();
     simpleSubtitleCues.add(firstCue);
-    WebvttCue secondCue = new WebvttCue(3000000, 4000000, SECOND_SUBTITLE_STRING);
+    WebvttCue secondCue =
+        new WebvttCue.Builder()
+            .setStartTime(3000000)
+            .setEndTime(4000000)
+            .setText(SECOND_SUBTITLE_STRING)
+            .build();
     simpleSubtitleCues.add(secondCue);
     simpleSubtitle = new WebvttSubtitle(simpleSubtitleCues);
   }
 
   private static final WebvttSubtitle overlappingSubtitle;
+
   static {
     ArrayList<WebvttCue> overlappingSubtitleCues = new ArrayList<>();
-    WebvttCue firstCue = new WebvttCue(1000000, 3000000, FIRST_SUBTITLE_STRING);
+    WebvttCue firstCue =
+        new WebvttCue.Builder()
+            .setStartTime(1000000)
+            .setEndTime(3000000)
+            .setText(FIRST_SUBTITLE_STRING)
+            .build();
     overlappingSubtitleCues.add(firstCue);
-    WebvttCue secondCue = new WebvttCue(2000000, 4000000, SECOND_SUBTITLE_STRING);
+    WebvttCue secondCue =
+        new WebvttCue.Builder()
+            .setStartTime(2000000)
+            .setEndTime(4000000)
+            .setText(SECOND_SUBTITLE_STRING)
+            .build();
     overlappingSubtitleCues.add(secondCue);
     overlappingSubtitle = new WebvttSubtitle(overlappingSubtitleCues);
   }
 
   private static final WebvttSubtitle nestedSubtitle;
+
   static {
     ArrayList<WebvttCue> nestedSubtitleCues = new ArrayList<>();
-    WebvttCue firstCue = new WebvttCue(1000000, 4000000, FIRST_SUBTITLE_STRING);
+    WebvttCue firstCue =
+        new WebvttCue.Builder()
+            .setStartTime(1000000)
+            .setEndTime(4000000)
+            .setText(FIRST_SUBTITLE_STRING)
+            .build();
     nestedSubtitleCues.add(firstCue);
-    WebvttCue secondCue = new WebvttCue(2000000, 3000000, SECOND_SUBTITLE_STRING);
+    WebvttCue secondCue =
+        new WebvttCue.Builder()
+            .setStartTime(2000000)
+            .setEndTime(3000000)
+            .setText(SECOND_SUBTITLE_STRING)
+            .build();
     nestedSubtitleCues.add(secondCue);
     nestedSubtitle = new WebvttSubtitle(nestedSubtitleCues);
   }