public static async Task JoinSessionAsync(RemoteSystemSessionInfo sessionInfo)
{
var info = await sessionInfo.JoinAsync();
if (info.Status == RemoteSystemSessionJoinStatus.Success)
{
_currentSession?.Dispose();
_currentSession = info.Session;
_mediaChannel = new RemoteSystemSessionMessageChannel(_currentSession, ChannelName);
_mediaChannel.ValueSetReceived += OnChannelValueSetReceived;
}
}
public void OnDescoverSessionAsync(object sender, RoutedEventArgs e)
{
if (sessionWatcher != null)
{
return;
}
// 建立 Watcher 來查看有哪些 Sessions 被建立或是刪除
sessionWatcher = RemoteSystemSession.CreateWatcher();
sessionWatcher.Added += (s, a) => {
// 將找到的 RemoteSystemInfo 加入 UI 顯示
RemoteSystemSessionInfo sessionInfo = a.SessionInfo;
var addedTask = dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
sessionList.Add(sessionInfo);
});
};
sessionWatcher.Removed += (s, a) => {
// 將已經結束的 session 從 UI 移除
var removedSession = a.SessionInfo;
var exist = sessionList.Where(x => x.ControllerDisplayName == removedSession.ControllerDisplayName && x.DisplayName == removedSession.DisplayName).FirstOrDefault();
if (exist != null)
{
var removedTask = dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
sessionList.Remove(exist);
});
}
};
sessionWatcher.Updated += (s, a) => {
// 講更新的 RemoteSystemInfo 加入到 UI
var updatedSession = a.SessionInfo;
var exist = sessionList.Where(x => x.ControllerDisplayName == updatedSession.ControllerDisplayName && x.DisplayName == updatedSession.DisplayName).FirstOrDefault();
if (exist != null)
{
var updatedTask = dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
sessionList.Remove(exist);
sessionList.Add(updatedSession);
});
}
};
sessionWatcher.Start();
}
// Joins the current session, handles session disconnect - rejoin TBD
public async Task <bool> JoinSession(RemoteSystemSessionInfo session, string name)
{
bool status = false;
RemoteSystemSessionJoinResult joinResult = await session.JoinAsync();
var watcher = joinResult.Session.CreateParticipantWatcher();
watcher.Added += (s, e) =>
{
if (e.Participant.RemoteSystem.DisplayName.Equals(session.ControllerDisplayName))
{
SessionHost = e.Participant;
}
};
watcher.EnumerationCompleted += (s, e) =>
{
EnumerationCompleted = true;
if (SessionHost == null)
{
SendDebugMessage("Session host was not found during enumeration.");
}
};
watcher.Start();
// Checking that remote system access is allowed - ensure capability in the project manifest is set
if (joinResult.Status == RemoteSystemSessionJoinStatus.Success)
{
// Join session
m_currentSession = joinResult.Session;
// Handles disconnect
m_currentSession.Disconnected += (sender, args) =>
{
SendDebugMessage("Session was disconnected.");
SessionDisconnected(sender, args);
};
status = true;
}
else
{
status = false;
SendDebugMessage("Failed to join.");
}
return(status);
}
private async void selectSession(object sender, SelectionChangedEventArgs e)
{
//bool status = false;
RemoteSystemSessionInfo sessionInfo = ((sender as ListBox).SelectedItem as RemoteSystemSessionInfo);
Debug.WriteLine($"Session {sessionInfo.DisplayName} selected");
//Request to Join
RemoteSystemSessionJoinResult joinresult = await sessionInfo.JoinAsync();
//create a particpant watcher
//var watcher = joinresult.Session.CreateParticipantWatcher();
//event that a watcher is added:
/**
* watcher.Added += (s, e1) => {
* if (e1.Participant.RemoteSystem.DisplayName.Equals(sessionInfo.ControllerDisplayName))
* {
* SessionHost = e1.Participant;
* Debug.WriteLine("added");
* Debug.WriteLine($"{e1.Participant.RemoteSystem.DisplayName}");
* Debug.WriteLine($"{s}");
* SessionHost = e1.Participant;
*
* }
* };
* watcher.Start();
**/
//process the result to ensure remote system access is allowed
if (joinresult.Status == RemoteSystemSessionJoinStatus.Success)
{
//successful join
Debug.WriteLine($"Session {sessionInfo.DisplayName} Joined Successfully");
m_currentSession = joinresult.Session;
//status = true;
}
StartRecievingMessages();
await SendMessageToHostAsync("hello world");
// return status;
}
