| public static ReconnectEngineToGUI ( ) : void | ||
| return | void | |
void OnStateChanged(State state)
{
Trace.Call(state);
if (Frontend.Session == null)
{
return;
}
switch (state)
{
case State.Disconnected:
if (!Frontend.IsLocalEngine)
{
ChatViewManager.IsSensitive = false;
}
break;
case State.Connected:
if (Frontend.IsLocalEngine)
{
// reconnect local protocol managers
foreach (var protocolManager in Frontend.Session.ProtocolManagers)
{
protocolManager.Reconnect(Frontend.FrontendManager);
}
}
else
{
Frontend.ReconnectEngineToGUI();
ChatViewManager.IsSensitive = true;
}
break;
}
}
void OnStateChanged(int state)
{
Trace.Call(state);
if (!Frontend.HadSession)
{
return;
}
switch (state)
{
case (int)StateNM9.Disconnecting:
if (!Frontend.IsLocalEngine)
{
Frontend.DisconnectEngineFromGUI(true);
}
break;
case (int)StateNM8.Disconnected:
case (int)StateNM9.Disconnected:
WasLocalEngine = Frontend.IsLocalEngine;
if (!Frontend.IsLocalEngine)
{
Frontend.DisconnectEngineFromGUI(false);
}
break;
case (int)StateNM8.Connected:
case (int)StateNM9.ConnectedSite:
case (int)StateNM9.ConnectedGlobal:
if (WasLocalEngine)
{
// reconnect local protocol managers
foreach (var protocolManager in Frontend.Session.ProtocolManagers)
{
var pm = protocolManager;
// run in background so it can't block the GUI
ThreadPool.QueueUserWorkItem(delegate {
try {
pm.Reconnect(Frontend.FrontendManager);
} catch (Exception ex) {
Frontend.ShowException(ex);
}
});
}
}
else
{
Frontend.ReconnectEngineToGUI(false);
}
break;
}
}
public static bool ShowReconnectDialog(Gtk.Window parent)
{
Trace.Call(parent);
Gtk.MessageDialog md = new Gtk.MessageDialog(parent,
Gtk.DialogFlags.Modal, Gtk.MessageType.Error,
Gtk.ButtonsType.OkCancel, _("The frontend has lost the connection to the server.\nDo you want to reconnect now?"));
Gtk.ResponseType res = (Gtk.ResponseType)md.Run();
md.Destroy();
if (res != Gtk.ResponseType.Ok)
{
Quit();
return(false);
}
while (true)
{
try {
Frontend.ReconnectEngineToGUI();
// yay, we made it
_InReconnectHandler = false;
break;
} catch (Exception e) {
#if LOG4NET
_Logger.Error("ShowReconnectDialog(): Reconnect failed, exception:", e);
#endif
var msg = _("Reconnecting to the server has failed.\nDo you want to try again?");
// the parent window is hidden (MainWindow) at this
// point thus modal doesn't make sense here
md = new Gtk.MessageDialog(parent,
Gtk.DialogFlags.DestroyWithParent,
Gtk.MessageType.Error,
Gtk.ButtonsType.OkCancel, msg);
md.SetPosition(Gtk.WindowPosition.CenterAlways);
res = (Gtk.ResponseType)md.Run();
md.Destroy();
if (res != Gtk.ResponseType.Ok)
{
// give up
Quit();
return(false);
}
}
}
return(true);
}
private static bool CheckFrontendManagerStatus()
{
Trace.Call();
if (_FrontendManager == null)
{
// we lost the frontend manager, nothing to check
return(false);
}
if (_FrontendManager.IsAlive)
{
// everything is fine
return(true);
}
#if LOG4NET
_Logger.Error("CheckFrontendManagerStatus(): frontend manager is not alive anymore!");
#endif
Gtk.Application.Invoke(delegate {
Gtk.MessageDialog md = new Gtk.MessageDialog(_MainWindow,
Gtk.DialogFlags.Modal, Gtk.MessageType.Error,
Gtk.ButtonsType.OkCancel, _("The server has lost the connection to the frontend.\nDo you want to reconnect now?"));
Gtk.ResponseType res = (Gtk.ResponseType)md.Run();
md.Destroy();
if (res != Gtk.ResponseType.Ok)
{
// the frontend is unusable in this state -> say good bye
Frontend.Quit();
return;
}
Frontend.ReconnectEngineToGUI();
});
return(false);
}
public static void ShowException(Gtk.Window parent, Exception ex)
{
Trace.Call(parent, ex != null ? ex.GetType() : null);
if (parent == null)
{
parent = _MainWindow;
}
if (!IsGuiThread())
{
Gtk.Application.Invoke(delegate {
ShowException(parent, ex);
});
return;
}
if (ex is NotImplementedException)
{
// don't quit on NotImplementedException
ShowError(parent, ex);
return;
}
#if LOG4NET
_Logger.Error("ShowException(): Exception:", ex);
#endif
// HACK: ugly MS .NET throws underlaying SocketException instead of
// wrapping those into a nice RemotingException, see:
// http://projects.qnetp.net/issues/show/232
if (ex is System.Runtime.Remoting.RemotingException ||
ex is System.Net.Sockets.SocketException)
{
if (_InReconnectHandler || _InCrashHandler)
{
// one reconnect is good enough and a crash we won't survive
return;
}
Frontend.ReconnectEngineToGUI();
return;
}
if (_InCrashHandler)
{
// only show not more than one crash dialog, else the user
// will not be able to copy/paste the stack trace and stuff
return;
}
_InCrashHandler = true;
CrashDialog cd = new CrashDialog(parent, ex);
cd.Run();
cd.Destroy();
if (SysDiag.Debugger.IsAttached)
{
// allow the debugger to examine the situation
//SysDiag.Debugger.Break();
// HACK: Break() would be nicer but crashes the runtime
throw ex;
}
Quit();
}
public static void ShowException(Gtk.Window parent, Exception ex)
{
Trace.Call(parent, ex != null ? ex.GetType() : null);
if (parent == null)
{
parent = _MainWindow;
}
if (!IsGuiThread())
{
Gtk.Application.Invoke(delegate {
ShowException(parent, ex);
});
return;
}
if (ex is NotImplementedException)
{
// don't quit on NotImplementedException
ShowError(parent, ex);
return;
}
#if LOG4NET
_Logger.Error("ShowException(): Exception:", ex);
#endif
// HACK: ugly MS .NET throws underlaying SocketException instead of
// wrapping those into a nice RemotingException, see:
// http://projects.qnetp.net/issues/show/232
if (ex is System.Runtime.Remoting.RemotingException ||
ex is System.Net.Sockets.SocketException)
{
if (_InReconnectHandler || _InCrashHandler)
{
// one reconnect is good enough and a crash we won't survive
return;
}
Frontend.ReconnectEngineToGUI();
return;
}
if (_InCrashHandler)
{
// only show not more than one crash dialog, else the user
// will not be able to copy/paste the stack trace and stuff
return;
}
_InCrashHandler = true;
// we are using a remote engine, we are not running on Mono and an
// IConvertible issue happened
if (!Frontend.IsLocalEngine &&
Type.GetType("Mono.Runtime") == null &&
ex is InvalidCastException &&
ex.Message.Contains("IConvertible"))
{
var msg = _(
"A fatal error has been detected because of a protocol incompatibility with the smuxi-server!\n\n" +
"Please install Mono on the frontend side so it matches the smuxi-server.\n\n" +
"More details about this issue can be found here:\n" +
"https://smuxi.im/issues/show/589"
);
var dialog = new Gtk.MessageDialog(
parent,
Gtk.DialogFlags.Modal,
Gtk.MessageType.Error,
Gtk.ButtonsType.Close,
true,
msg
);
dialog.Run();
dialog.Destroy();
Quit();
return;
}
CrashDialog cd = new CrashDialog(parent, ex);
cd.Run();
cd.Destroy();
if (SysDiag.Debugger.IsAttached)
{
// allow the debugger to examine the situation
//SysDiag.Debugger.Break();
// HACK: Break() would be nicer but crashes the runtime
throw ex;
}
Quit();
}