// 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);
}
public void OnSubscribeAndHandleInvoke(object sender, RoutedEventArgs args)
{
invitationListener = new RemoteSystemSessionInvitationListener();
// 註冊處理來自其他 RemoteSystem 發出的 RemoteSession 邀請
invitationListener.InvitationReceived += async(s, e) =>
{
// 未加入前，是利用 RemoteSystemInfo 做 JoinAsync()
RemoteSystemSessionJoinResult joinResult = await e.Invitation.SessionInfo.JoinAsync();
if (joinResult.Status == RemoteSystemSessionJoinStatus.Success)
{
// 注冊訊息通道做資料傳遞
RegistMessageChannel(currentSession, currentSession.DisplayName);
// 註冊有哪些參與者加入或離開
SubscribeParticipantWatcher(currentSession);
}
};
}
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;
}