feat: Add Subtitle Support for Native Player in Fullscreen Mode

app/src/main/java/org/openedx/app/AppRouter.kt

@@ -270,10 +270,18 @@ class AppRouter : AuthRouter, DiscoveryRouter, DashboardRouter, CourseRouter, Di
         blockId: String,
         courseId: String,
         isPlaying: Boolean,
+        transcripts: Map<String, String>,
     ) {
         replaceFragmentWithBackStack(
             fm,
-            VideoFullScreenFragment.newInstance(videoUrl, videoTime, blockId, courseId, isPlaying)
+            VideoFullScreenFragment.newInstance(
+                videoUrl = videoUrl,
+                videoTime = videoTime,
+                blockId = blockId,
+                courseId = courseId,
+                isPlaying = isPlaying,
+                transcripts = transcripts,
+            )
         )
     }
 

course/src/main/java/org/openedx/course/presentation/CourseRouter.kt

@@ -43,7 +43,8 @@ interface CourseRouter {
         videoTime: Long,
         blockId: String,
         courseId: String,
-        isPlaying: Boolean
+        isPlaying: Boolean,
+        transcripts: Map<String, String>
     )
 
     fun navigateToFullScreenYoutubeVideo(

course/src/main/java/org/openedx/course/presentation/unit/video/VideoFullScreenFragment.kt

@@ -25,7 +25,9 @@ import org.koin.android.ext.android.inject
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
 import org.openedx.core.domain.model.VideoQuality
+import org.openedx.core.extension.objectToString
 import org.openedx.core.extension.requestApplyInsetsWhenAttached
+import org.openedx.core.extension.stringToObject
 import org.openedx.core.presentation.dialog.appreview.AppReviewManager
 import org.openedx.core.presentation.global.viewBinding
 import org.openedx.course.R
@@ -69,6 +71,9 @@ class VideoFullScreenFragment : Fragment(R.layout.fragment_video_full_screen) {
         if (viewModel.isPlaying == null) {
             viewModel.isPlaying = requireArguments().getBoolean(ARG_IS_PLAYING)
         }
+        viewModel.transcripts = stringToObject<Map<String, String>>(
+            requireArguments().getString(ARG_TRANSCRIPTS, "")
+        ) ?: emptyMap()
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -199,21 +204,24 @@ class VideoFullScreenFragment : Fragment(R.layout.fragment_video_full_screen) {
         private const val ARG_BLOCK_ID = "blockId"
         private const val ARG_COURSE_ID = "courseId"
         private const val ARG_IS_PLAYING = "isPlaying"
+        private const val ARG_TRANSCRIPTS = "transcripts"
 
         fun newInstance(
             videoUrl: String,
             videoTime: Long,
             blockId: String,
             courseId: String,
             isPlaying: Boolean,
+            transcripts: Map<String, String>,
         ): VideoFullScreenFragment {
             val fragment = VideoFullScreenFragment()
             fragment.arguments = bundleOf(
                 ARG_BLOCK_VIDEO_URL to videoUrl,
                 ARG_VIDEO_TIME to videoTime,
                 ARG_BLOCK_ID to blockId,
                 ARG_COURSE_ID to courseId,
-                ARG_IS_PLAYING to isPlaying
+                ARG_IS_PLAYING to isPlaying,
+                ARG_TRANSCRIPTS to objectToString(transcripts),
             )
             return fragment
         }

course/src/main/java/org/openedx/course/presentation/unit/video/VideoUnitFragment.kt

@@ -233,7 +233,8 @@ class VideoUnitFragment : Fragment(R.layout.fragment_video_unit) {
                     viewModel.exoPlayer?.currentPosition ?: 0L,
                     viewModel.blockId,
                     viewModel.courseId,
-                    viewModel.isPlaying
+                    viewModel.isPlaying,
+                    viewModel.transcripts,
                 )
             }
         }

course/src/main/java/org/openedx/course/presentation/unit/video/VideoViewModel.kt

@@ -21,6 +21,7 @@ class VideoViewModel(
     var videoUrl = ""
     var currentVideoTime = 0L
     var isPlaying: Boolean? = null
+    var transcripts = emptyMap<String, String>()
 
     private var isBlockAlreadyCompleted = false