Fix merging download action to completed and stop flag set download

PiperOrigin-RevId: 238002393

library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadState.java

@@ -247,7 +247,7 @@ public final class DownloadState {
         type,
         action.uri,
         action.customCacheKey,
-        getNextState(state, action.isRemoveAction),
+        getNextState(state, stopFlags != 0, action.isRemoveAction),
         /* downloadPercentage= */ C.PERCENTAGE_UNSET,
         downloadedBytes,
         /* totalBytes= */ C.LENGTH_UNSET,
@@ -261,14 +261,14 @@ public final class DownloadState {
         action.data);
   }
 
-  private static int getNextState(int currentState, boolean remove) {
+  private static int getNextState(int currentState, boolean stopFlagsSet, boolean remove) {
     int nextState;
     if (remove) {
       nextState = STATE_REMOVING;
     } else {
       if (currentState == STATE_REMOVING || currentState == STATE_RESTARTING) {
         nextState = STATE_RESTARTING;
-      } else if (currentState == STATE_STOPPED) {
+      } else if (stopFlagsSet) {
         nextState = STATE_STOPPED;
       } else {
         nextState = STATE_QUEUED;

library/core/src/test/java/com/google/android/exoplayer2/offline/DownloadStateTest.java

@@ -196,6 +196,22 @@ public class DownloadStateTest {
   }
 
   @Test
+  public void mergeAction_stopFlagSetButNotInStoppedState_stateBecomesStopped() {
+    DownloadAction downloadAction = createDownloadAction();
+    DownloadStateBuilder downloadStateBuilder =
+        new DownloadStateBuilder(downloadAction)
+            .setState(DownloadState.STATE_COMPLETED)
+            .setStopFlags(DownloadState.STOP_FLAG_MANUAL);
+    DownloadState downloadState = downloadStateBuilder.build();
+
+    DownloadState mergedDownloadState = downloadState.mergeAction(downloadAction);
+
+    DownloadState expectedDownloadState =
+        downloadStateBuilder.setState(DownloadState.STATE_STOPPED).build();
+    assertEqual(mergedDownloadState, expectedDownloadState);
+  }
+
+  @Test
   public void mergeAction_restartingDownloadRemoveAction_stateBecomesRemoving() {
     DownloadAction downloadAction = createRemoveAction();
     DownloadStateBuilder downloadStateBuilder =