fix: Fix keyboard hotkeys not being binded

Author: ionjsepulveda

app/src/main/java/com/github/libretube/ui/activities/MainActivity.kt

@@ -639,7 +639,7 @@ class MainActivity : BaseActivity() {
     }
 
     override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
-        if (runOnPlayerFragment { onKeyUp(keyCode) }) {
+        if (runOnPlayerFragment { this@runOnPlayerFragment.onKeyUp(keyCode, event) }) {
             return true
         }
 

app/src/main/java/com/github/libretube/ui/fragments/PlayerFragment.kt

@@ -1566,7 +1566,7 @@ class PlayerFragment : Fragment(R.layout.fragment_player), OnlinePlayerOptions {
 
             viewModel.isOrientationChangeInProgress = true
 
-            // detatch player view from player to stop surface rendering
+            // detach player view from player to stop surface rendering
             binding.player.player = null
 
             if (::playerController.isInitialized) playerController.release()
@@ -1602,8 +1602,8 @@ class PlayerFragment : Fragment(R.layout.fragment_player), OnlinePlayerOptions {
         binding.player.hideController()
     }
 
-    fun onKeyUp(keyCode: Int): Boolean {
-        return _binding?.player?.onKeyBoardAction(keyCode) ?: false
+    fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
+        return _binding?.player?.onKeyUp(keyCode, event) ?: false
     }
 
     override fun onDestroyView() {

app/src/main/java/com/github/libretube/ui/views/CustomExoPlayerView.kt

@@ -168,6 +168,8 @@ abstract class CustomExoPlayerView(
         applyCaptionsStyle()
         initializeAdvancedOptions()
 
+        setupKeyboardFocus()
+
         // don't let the player view hide its controls automatically
         controllerShowTimeoutMs = -1
         // don't let the player view show its controls automatically
@@ -346,6 +348,15 @@ abstract class CustomExoPlayerView(
         }
     }
 
+    /**
+     * focus the player view so that all keyboard events will be moved here
+     */
+    private fun setupKeyboardFocus() {
+        isFocusable = true
+        isFocusableInTouchMode = true
+        requestFocus()
+    }
+
     fun toggleSystemBars(showBars: Boolean) {
         getWindow().toggleSystemBars(
             types = if (showBars) {
@@ -961,7 +972,7 @@ abstract class CustomExoPlayerView(
         return playerGestureController.onTouchEvent(event)
     }
 
-    fun onKeyBoardAction(keyCode: Int): Boolean {
+    override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
         when (keyCode) {
             KeyEvent.KEYCODE_SPACE, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE -> {
                 player?.togglePlayPauseState()