108 lines
3.1 KiB
C#
108 lines
3.1 KiB
C#
using System;
|
|
using System.Runtime.CompilerServices;
|
|
using Unity.Properties;
|
|
using Unity.Services.Multiplayer;
|
|
using UnityEngine.UIElements;
|
|
|
|
namespace Blocks.Sessions.Common
|
|
{
|
|
public class SessionNameViewModel : INotifyBindablePropertyChanged, IDataSourceViewHashProvider, IDisposable
|
|
{
|
|
const string k_NoSession = "No Session joined";
|
|
|
|
SessionObserver m_SessionObserver;
|
|
ISession m_Session;
|
|
long m_UpdateVersion;
|
|
|
|
/// <summary>
|
|
/// This property is bound to <see cref="SessionNameLabel.text"/> so that the label displays the current
|
|
/// session name.
|
|
/// <summary>
|
|
[CreateProperty]
|
|
public string SessionName
|
|
{
|
|
get => m_SessionName;
|
|
set
|
|
{
|
|
if (m_SessionName == value)
|
|
{
|
|
return;
|
|
}
|
|
|
|
m_SessionName = value;
|
|
++m_UpdateVersion;
|
|
Notify();
|
|
}
|
|
}
|
|
string m_SessionName = k_NoSession;
|
|
|
|
public SessionNameViewModel(string sessionType)
|
|
{
|
|
m_SessionObserver = new SessionObserver(sessionType);
|
|
m_SessionObserver.SessionAdded += OnSessionAdded;
|
|
|
|
if (m_SessionObserver.Session != null)
|
|
{
|
|
OnSessionAdded(m_SessionObserver.Session);
|
|
}
|
|
}
|
|
|
|
void OnSessionAdded(ISession newSession)
|
|
{
|
|
m_Session = newSession;
|
|
m_Session.RemovedFromSession += OnSessionRemoved;
|
|
m_Session.Deleted += OnSessionRemoved;
|
|
m_Session.Changed += OnSessionChanged;
|
|
SessionName = newSession.Name;
|
|
}
|
|
|
|
void OnSessionChanged()
|
|
{
|
|
SessionName = m_Session.Name;
|
|
}
|
|
|
|
void OnSessionRemoved()
|
|
{
|
|
SessionName = k_NoSession;
|
|
CleanupSession();
|
|
}
|
|
|
|
void CleanupSession()
|
|
{
|
|
m_Session.RemovedFromSession -= OnSessionRemoved;
|
|
m_Session.Deleted -= OnSessionRemoved;
|
|
m_Session.Changed -= OnSessionChanged;
|
|
m_Session = null;
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (m_SessionObserver != null)
|
|
{
|
|
m_SessionObserver.Dispose();
|
|
m_SessionObserver = null;
|
|
}
|
|
|
|
if (m_Session != null)
|
|
{
|
|
CleanupSession();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This method is used by UIToolkit to determine if any data bound to the UI has changed.
|
|
/// Instead of hashing the data, an m_UpdateVersion counter is incremented when changes occur.
|
|
/// </summary>
|
|
public long GetViewHashCode() => m_UpdateVersion;
|
|
|
|
/// <summary>
|
|
/// Suggested implementation of INotifyBindablePropertyChanged from UIToolkit.
|
|
/// </summary>
|
|
public event EventHandler<BindablePropertyChangedEventArgs> propertyChanged;
|
|
void Notify([CallerMemberName] string property = null)
|
|
{
|
|
propertyChanged?.Invoke(this, new BindablePropertyChangedEventArgs(property));
|
|
}
|
|
}
|
|
}
|