RemoteMediaClient implemented in Android

android/src/main/kotlin/com/gianlucaparadise/flutter_cast_framework/FlutterCastFrameworkPlugin.kt

@@ -9,10 +9,12 @@ import androidx.lifecycle.OnLifecycleEvent
 import androidx.lifecycle.ProcessLifecycleOwner
 import com.gianlucaparadise.flutter_cast_framework.cast.CastDialogOpener
 import com.gianlucaparadise.flutter_cast_framework.cast.MessageCastingChannel
+import com.gianlucaparadise.flutter_cast_framework.media.getMediaLoadRequestData
 import com.google.android.gms.cast.framework.CastContext
 import com.google.android.gms.cast.framework.CastSession
 import com.google.android.gms.cast.framework.SessionManager
 import com.google.android.gms.cast.framework.SessionManagerListener
+import com.google.android.gms.cast.framework.media.RemoteMediaClient
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.embedding.engine.plugins.activity.ActivityAware
 import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
@@ -57,7 +59,7 @@ class FlutterCastFrameworkPlugin : FlutterPlugin, MethodCallHandler, ActivityAwa
 
         CastContext.getSharedInstance(applicationContext).addCastStateListener { i ->
             Log.d(TAG, "Cast state changed: $i")
-            flutterApi?.onCastStateChanged(i.toLong(), null)
+            flutterApi?.onCastStateChanged(i.toLong()) { }
         }
 
         mSessionManager = CastContext.getSharedInstance(applicationContext).sessionManager
@@ -167,6 +169,16 @@ class FlutterCastFrameworkPlugin : FlutterPlugin, MethodCallHandler, ActivityAwa
 
             CastDialogOpener.showCastDialog(context, activity)
         }
+
+        override fun loadMediaLoadRequestData(request: PlatformBridgeApis.MediaLoadRequestData?) {
+            if (request == null) return
+
+            val castSession: CastSession = mCastSession ?: return
+            val remoteMediaClient : RemoteMediaClient = castSession.remoteMediaClient ?: return
+
+            val mediaLoadRequest = getMediaLoadRequestData(request)
+            remoteMediaClient.load(mediaLoadRequest)
+        }
     }
 
     private fun getOnNamespaceResult(oldSession: CastSession?, newSession: CastSession?) = PlatformBridgeApis.CastFlutterApi.Reply<MutableList<String>> { namespaces ->

android/src/main/kotlin/com/gianlucaparadise/flutter_cast_framework/media/MediaLoadRequestDataHelper.kt

@@ -0,0 +1,142 @@
+package com.gianlucaparadise.flutter_cast_framework.media
+
+import android.net.Uri
+import com.gianlucaparadise.flutter_cast_framework.PlatformBridgeApis
+import com.google.android.gms.cast.MediaInfo
+import com.google.android.gms.cast.MediaLoadRequestData
+import com.google.android.gms.cast.MediaMetadata
+import com.google.android.gms.cast.MediaTrack
+import com.google.android.gms.common.images.WebImage
+import org.json.JSONObject
+
+fun getMediaLoadRequestData(request: PlatformBridgeApis.MediaLoadRequestData) : MediaLoadRequestData {
+    val mediaInfo = getMediaInfo(request.mediaInfo)
+
+    return MediaLoadRequestData.Builder()
+            .setMediaInfo(mediaInfo)
+            .setAutoplay(request.shouldAutoplay)
+            .setCurrentTime(request.currentTime)
+            .build()
+}
+
+fun getMediaInfo(mediaInfo: PlatformBridgeApis.MediaInfo?) : MediaInfo? {
+    if (mediaInfo == null) return null
+
+    val streamType = getStreamType(mediaInfo.streamType)
+    val metadata = getMediaMetadata(mediaInfo.mediaMetadata)
+    val mediaTracks = mediaInfo.mediaTracks.map { getMediaTrack(it) }
+    val customData = JSONObject(mediaInfo.customDataAsJson)
+
+    return MediaInfo.Builder(mediaInfo.contentId)
+            .setStreamType(streamType)
+            .setContentType(mediaInfo.contentType)
+            .setMetadata(metadata)
+            .setMediaTracks(mediaTracks)
+            .setStreamDuration(mediaInfo.streamDuration)
+            .setCustomData(customData)
+            .build()
+}
+
+fun getStreamType(streamType: PlatformBridgeApis.StreamType) : Int {
+    return when (streamType) {
+        PlatformBridgeApis.StreamType.invalid -> -1
+        PlatformBridgeApis.StreamType.none -> 0
+        PlatformBridgeApis.StreamType.buffered -> 1
+        PlatformBridgeApis.StreamType.live -> 2
+    }
+}
+
+fun getMediaMetadata(mediaMetadata: PlatformBridgeApis.MediaMetadata) : MediaMetadata {
+    val mediaType = getMediaType(mediaMetadata.mediaType)
+    val result = MediaMetadata(mediaType)
+
+    mediaMetadata.strings.forEach {
+        val key = getMediaMetadataKey(it.key)
+        result.putString(key, it.value)
+    }
+
+    mediaMetadata.webImages.forEach {
+        val uri = Uri.parse(it.url)
+        val webImage = WebImage(uri)
+        result.addImage(webImage)
+    }
+
+    return result
+}
+
+fun getMediaType(mediaType: PlatformBridgeApis.MediaType) : Int {
+    return when (mediaType) {
+        PlatformBridgeApis.MediaType.generic -> 0
+        PlatformBridgeApis.MediaType.movie -> 1
+        PlatformBridgeApis.MediaType.tvShow -> 2
+        PlatformBridgeApis.MediaType.musicTrack -> 3
+        PlatformBridgeApis.MediaType.photo -> 4
+        PlatformBridgeApis.MediaType.audiobookChapter -> 5
+        PlatformBridgeApis.MediaType.user -> 100
+    }
+}
+
+fun getMediaMetadataKey(mediaMetadataKey: PlatformBridgeApis.MediaMetadataKey) : String {
+    return when (mediaMetadataKey) {
+        PlatformBridgeApis.MediaMetadataKey.albumArtist -> "com.google.android.gms.cast.metadata.ALBUM_ARTIST"
+        PlatformBridgeApis.MediaMetadataKey.albumTitle -> "com.google.android.gms.cast.metadata.ALBUM_TITLE"
+        PlatformBridgeApis.MediaMetadataKey.artist -> "com.google.android.gms.cast.metadata.ARTIST"
+        PlatformBridgeApis.MediaMetadataKey.bookTitle -> "com.google.android.gms.cast.metadata.BOOK_TITLE"
+        PlatformBridgeApis.MediaMetadataKey.broadcastDate -> "com.google.android.gms.cast.metadata.BROADCAST_DATE"
+        PlatformBridgeApis.MediaMetadataKey.chapterNumber -> "com.google.android.gms.cast.metadata.CHAPTER_NUMBER"
+        PlatformBridgeApis.MediaMetadataKey.chapterTitle -> "com.google.android.gms.cast.metadata.CHAPTER_TITLE"
+        PlatformBridgeApis.MediaMetadataKey.composer -> "com.google.android.gms.cast.metadata.COMPOSER"
+        PlatformBridgeApis.MediaMetadataKey.creationDate -> "com.google.android.gms.cast.metadata.CREATION_DATE"
+        PlatformBridgeApis.MediaMetadataKey.discNumber -> "com.google.android.gms.cast.metadata.DISC_NUMBER"
+        PlatformBridgeApis.MediaMetadataKey.episodeNumber -> "com.google.android.gms.cast.metadata.EPISODE_NUMBER"
+        PlatformBridgeApis.MediaMetadataKey.height -> "com.google.android.gms.cast.metadata.HEIGHT"
+        PlatformBridgeApis.MediaMetadataKey.locationLatitude -> "com.google.android.gms.cast.metadata.LOCATION_LATITUDE"
+        PlatformBridgeApis.MediaMetadataKey.locationLongitude -> "com.google.android.gms.cast.metadata.LOCATION_LONGITUDE"
+        PlatformBridgeApis.MediaMetadataKey.locationName -> "com.google.android.gms.cast.metadata.LOCATION_NAME"
+        PlatformBridgeApis.MediaMetadataKey.queueItemId -> "com.google.android.gms.cast.metadata.QUEUE_ITEM_ID"
+        PlatformBridgeApis.MediaMetadataKey.releaseDate -> "com.google.android.gms.cast.metadata.RELEASE_DATE"
+        PlatformBridgeApis.MediaMetadataKey.seasonNumber -> "com.google.android.gms.cast.metadata.SEASON_NUMBER"
+        PlatformBridgeApis.MediaMetadataKey.sectionDuration -> "com.google.android.gms.cast.metadata.SECTION_DURATION"
+        PlatformBridgeApis.MediaMetadataKey.sectionStartAbsoluteTime -> "com.google.android.gms.cast.metadata.SECTION_START_ABSOLUTE_TIME"
+        PlatformBridgeApis.MediaMetadataKey.sectionStartTimeInContainer -> "com.google.android.gms.cast.metadata.SECTION_START_TIME_IN_CONTAINER"
+        PlatformBridgeApis.MediaMetadataKey.sectionStartTimeInMedia -> "com.google.android.gms.cast.metadata.SECTION_START_TIME_IN_MEDIA"
+        PlatformBridgeApis.MediaMetadataKey.seriesTitle -> "com.google.android.gms.cast.metadata.SERIES_TITLE"
+        PlatformBridgeApis.MediaMetadataKey.studio -> "com.google.android.gms.cast.metadata.STUDIO"
+        PlatformBridgeApis.MediaMetadataKey.subtitle -> "com.google.android.gms.cast.metadata.SUBTITLE"
+        PlatformBridgeApis.MediaMetadataKey.title -> "com.google.android.gms.cast.metadata.TITLE"
+        PlatformBridgeApis.MediaMetadataKey.trackNumber -> "com.google.android.gms.cast.metadata.TRACK_NUMBER"
+        PlatformBridgeApis.MediaMetadataKey.width -> "com.google.android.gms.cast.metadata.WIDTH"
+    }
+}
+
+fun getMediaTrack(mediaTrack: PlatformBridgeApis.MediaTrack) : MediaTrack {
+    val trackType = getTrackType(mediaTrack.trackType)
+    val trackSubtype = getTrackSubtype(mediaTrack.trackSubtype)
+
+    return MediaTrack.Builder(mediaTrack.id, trackType)
+            .setName(mediaTrack.name)
+            .setSubtype(trackSubtype)
+            .setContentId(mediaTrack.contentId)
+            .build()
+}
+
+fun getTrackType(trackType: PlatformBridgeApis.TrackType) : Int {
+    return when (trackType) {
+        PlatformBridgeApis.TrackType.unknown -> 0
+        PlatformBridgeApis.TrackType.text -> 1
+        PlatformBridgeApis.TrackType.audio -> 2
+        PlatformBridgeApis.TrackType.video -> 3
+    }
+}
+
+fun getTrackSubtype(trackSubtype: PlatformBridgeApis.TrackSubtype) : Int {
+    return when (trackSubtype) {
+        PlatformBridgeApis.TrackSubtype.unknown -> -1
+        PlatformBridgeApis.TrackSubtype.none ->  0
+        PlatformBridgeApis.TrackSubtype.subtitles ->  1
+        PlatformBridgeApis.TrackSubtype.captions ->  2
+        PlatformBridgeApis.TrackSubtype.descriptions ->  3
+        PlatformBridgeApis.TrackSubtype.chapters ->  4
+        PlatformBridgeApis.TrackSubtype.metadata ->  5
+    }
+}