[a11y] Ensure that video overlay with controls is never hidden when screen reader is enabled.

libraries/mediaviewer/impl/build.gradle.kts

@@ -50,6 +50,7 @@ dependencies {
     implementation(projects.libraries.matrix.api)
     implementation(projects.libraries.matrixmedia.api)
     implementation(projects.libraries.uiStrings)
+    implementation(projects.libraries.uiUtils)
     implementation(projects.libraries.voiceplayer.api)
     implementation(projects.services.toolbox.api)
 

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/local/video/MediaVideoView.kt

@@ -57,6 +57,7 @@ import io.element.android.libraries.mediaviewer.impl.local.player.rememberExoPla
 import io.element.android.libraries.mediaviewer.impl.local.player.seekToEnsurePlaying
 import io.element.android.libraries.mediaviewer.impl.local.player.togglePlay
 import io.element.android.libraries.mediaviewer.impl.local.rememberLocalMediaViewState
+import io.element.android.libraries.ui.utils.a11y.isTalkbackActive
 import kotlinx.coroutines.delay
 import me.saket.telephoto.zoomable.zoomable
 import timber.log.Timber
@@ -162,12 +163,20 @@ private fun ExoPlayerMediaVideoView(
 
     var autoHideController by remember { mutableIntStateOf(0) }
 
-    LaunchedEffect(autoHideController) {
-        delay(5.seconds)
-        if (exoPlayer.isPlaying) {
+    val isTalkbackActive = isTalkbackActive()
+    LaunchedEffect(autoHideController, isTalkbackActive) {
+        if (isTalkbackActive) {
+            // Ensure that the controller is always visible when talkback is active
             mediaPlayerControllerState = mediaPlayerControllerState.copy(
-                isVisible = false,
+                isVisible = true,
             )
+        } else {
+            delay(5.seconds)
+            if (exoPlayer.isPlaying) {
+                mediaPlayerControllerState = mediaPlayerControllerState.copy(
+                    isVisible = false,
+                )
+            }
         }
     }