feat: implement onAudioTracks and onTextTracks on ios

TheWidlarzGroup · Jan 28, 2024 · 63a4fac · 63a4fac
1 parent 2094dbd
commit 63a4fac
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Showing 3 changed files with 25 additions and 2 deletions.
diff --git a/docs/pages/component/events.md b/docs/pages/component/events.md
@@ -6,7 +6,7 @@ This page shows the list of available callbacks to handle player notifications
 |-------------------------------------------------------------------------------------------------|---------------------------|
 | [onAudioBecomingNoisy](#onaudiobecomingnoisy)                                                   | Android, iOS              |
 | [onAudioFocusChanged](#onaudiofocuschanged)                                                     | Android                   |
-| [onAudioTracks](#onaudiotracks)                                                                 | Android                   |
+| [onAudioTracks](#onaudiotracks)                                                                 | Android, iOS              |
 | [onBandwidthUpdate](#onbandwidthupdate)                                                         | Android                   |
 | [onBuffer](#onbuffer)                                                                           | Android, iOS              |
 | [onEnd](#onend)                                                                                 | All                       |
@@ -27,7 +27,7 @@ This page shows the list of available callbacks to handle player notifications
 | [onRestoreUserInterfaceForPictureInPictureStop](#onrestoreuserinterfaceforpictureinpicturestop) | iOS, visionOS             |
 | [onSeek](#onseek)                                                                               | All                       |
 | [onTimedMetadata](#ontimedmetadata)                                                             | Android, iOS, visionOS    |
-| [onTextTracks](#ontexttracks)                                                                   | Android                   |
+| [onTextTracks](#ontexttracks)                                                                   | Android, iOS              |
 | [onVideoTracks](#onvideotracks)                                                                 | Android                   |
 | [onVolumeChange](#onvolumechange)                                                               | Android, iOS, visionOS    |
 

diff --git a/ios/Video/RCTVideo.swift b/ios/Video/RCTVideo.swift
@@ -116,6 +116,8 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     @objc var onRestoreUserInterfaceForPictureInPictureStop: RCTDirectEventBlock?
     @objc var onGetLicense: RCTDirectEventBlock?
     @objc var onReceiveAdEvent: RCTDirectEventBlock?
+    @objc var onTextTracks: RCTDirectEventBlock?
+    @objc var onAudioTracks: RCTDirectEventBlock?
 
     @objc
     func _onPictureInPictureStatusChanged() {
@@ -246,6 +248,19 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
         }
     }
 
+    /// Tracks notifications is handled here.
+    override func observeValue(forKeyPath keyPath: String?,
+                               of object: Any?,
+                               change: [NSKeyValueChangeKey : Any]?,
+                               context: UnsafeMutableRawPointer?) {
+        if keyPath == #keyPath(AVPlayerItem.tracks) {
+            all(RCTVideoUtils.getAudioTrackInfo(self._player), RCTVideoUtils.getTextTrackInfo(self._player)).then { audioTracks, textTracks in
+                self.onTextTracks?(["textTracks": textTracks])
+                self.onAudioTracks?(["audioTracks": audioTracks])
+            }
+        }
+    }
+
     // MARK: - Progress
 
     func sendProgressUpdate() {
@@ -363,6 +378,12 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
 
                     self._player = self._player ?? AVPlayer()
                     self._player?.replaceCurrentItem(with: playerItem)
+
+                    // observe tracks update
+                    self._player?.currentItem?.addObserver(self,
+                                            forKeyPath: #keyPath(AVPlayerItem.tracks),
+                                            options: [.old, .new],
+                                            context: nil)
                     self._playerObserver.player = self._player
                     self.applyModifiers()
                     self._player?.actionAtItemEnd = .none

diff --git a/ios/Video/RCTVideoManager.m b/ios/Video/RCTVideoManager.m
@@ -64,6 +64,8 @@ @interface RCT_EXTERN_MODULE (RCTVideoManager, RCTViewManager)
 RCT_EXPORT_VIEW_PROPERTY(onPictureInPictureStatusChanged, RCTDirectEventBlock);
 RCT_EXPORT_VIEW_PROPERTY(onRestoreUserInterfaceForPictureInPictureStop, RCTDirectEventBlock);
 RCT_EXPORT_VIEW_PROPERTY(onReceiveAdEvent, RCTDirectEventBlock);
+RCT_EXPORT_VIEW_PROPERTY(onTextTracks, RCTDirectEventBlock);
+RCT_EXPORT_VIEW_PROPERTY(onAudioTracks, RCTDirectEventBlock);
 
 RCT_EXTERN_METHOD(save
                   : (NSDictionary*)options reactTag