Add voice broadcast slider (#7010)

Riot/Modules/VoiceBroadcast/VoiceBroadcastSDK/VoiceBroadcastBuilder.swift

@@ -27,20 +27,25 @@ struct VoiceBroadcastBuilder {
         
         var voiceBroadcast = VoiceBroadcast()
         
-        voiceBroadcast.chunks = Set(events.compactMap { event in
+        let chunks = Set(events.compactMap { event in
             buildChunk(event: event, mediaManager: mediaManager, voiceBroadcastStartEventId: voiceBroadcastStartEventId)
         })
         
+        voiceBroadcast.chunks = chunks
+        voiceBroadcast.duration = chunks.reduce(0) { $0 + $1.duration}
+        
         return voiceBroadcast
     }
     
     func buildChunk(event: MXEvent, mediaManager: MXMediaManager, voiceBroadcastStartEventId: String) -> VoiceBroadcastChunk? {
         guard let attachment = MXKAttachment(event: event, andMediaManager: mediaManager),
               let chunkInfo = event.content[VoiceBroadcastSettings.voiceBroadcastContentKeyChunkType] as? [String: UInt],
-              let sequence = chunkInfo[VoiceBroadcastSettings.voiceBroadcastContentKeyChunkSequence] else {
+              let sequence = chunkInfo[VoiceBroadcastSettings.voiceBroadcastContentKeyChunkSequence],
+              let audio = event.content[kMXMessageContentKeyExtensibleAudioMSC1767] as? [String: UInt],
+              let duration = audio[kMXMessageContentKeyExtensibleAudioDuration] else {
             return nil
         }
         
-        return VoiceBroadcastChunk(voiceBroadcastInfoEventId: voiceBroadcastStartEventId, sequence: sequence, attachment: attachment)
+        return VoiceBroadcastChunk(voiceBroadcastInfoEventId: voiceBroadcastStartEventId, sequence: sequence, attachment: attachment, duration: duration)
     }
 }

Riot/Modules/VoiceBroadcast/VoiceBroadcastSDK/VoiceBroadcastChunk.swift

@@ -20,13 +20,16 @@ public class VoiceBroadcastChunk: NSObject {
     public private(set) var voiceBroadcastInfoEventId: String
     public private(set) var sequence: UInt
     public private(set) var attachment: MXKAttachment
+    public private(set) var duration: UInt
     
     public init(voiceBroadcastInfoEventId: String,
                 sequence: UInt,
-                attachment: MXKAttachment) {
+                attachment: MXKAttachment,
+                duration: UInt) {
         self.voiceBroadcastInfoEventId = voiceBroadcastInfoEventId
         self.sequence = sequence
         self.attachment = attachment
+        self.duration = duration
     }
     
     public static func == (lhs: VoiceBroadcastChunk, rhs: VoiceBroadcastChunk) -> Bool {

Riot/Modules/VoiceBroadcast/VoiceBroadcastSDK/VoiceBroadcastModels.swift

@@ -24,4 +24,5 @@ public enum VoiceBroadcastKind {
 public struct VoiceBroadcast {
     var chunks: Set<VoiceBroadcastChunk> = []
     var kind: VoiceBroadcastKind = .player
+    var duration: UInt = 0
 }