protected void SaveActivityStateAndTransition <ToViewModel>()
{
DebugLog.Info("Save state");
navigator.Reveal <ProgressIndicatorViewModel>().Then((vm, onRevealed, onRevealError) =>
{
ProgressIndicatorViewModel progressIndicatorViewModel = vm.ResultAs <ProgressIndicatorViewModel>();
ProgressIndicatorViewModel.ProgressInfo busyIndicator = progressIndicatorViewModel.Begin("Saving...");
activityService.SaveActivityState(ActivityState)
.Then((prevResult, onCompleted, onError) =>
{
navigator.Transition(this, typeof(ToViewModel));
onCompleted(true);
})
.Catch((Exception e) =>
{
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable to save";
alert.Message = e.Message;
alert.Error = e;
alert.AlertDismissed += ((int index) => DebugLog.Info("Button {0} pressed", index));
}).Start();
}).Finally(() =>
{
busyIndicator.Dispose();
}).Start();
onRevealed(true);
}).Start();
}
private void RefreshActivityList()
{
try
{
Contract.PropertyNotNull("sessionState.CourseSettings", sessionState.CourseSettings);
DebugLog.Info("RefreshActivityList");
navigator.Reveal <ProgressIndicatorViewModel>().Then((vm, onRevealed, onRevealError) =>
{
ProgressIndicatorViewModel progressIndicatorViewModel = vm.ResultAs <ProgressIndicatorViewModel>();
ProgressIndicatorViewModel.ProgressInfo busyIndicator = progressIndicatorViewModel.Begin("Loading...");
activityService.LoadActivities(sessionState.CourseSettings.CourseId)
.Then((prevResult, onCompleted, onError) =>
{
DebugLog.Info("Activities loaded");
Activities = prevResult.ResultAs <List <Activity> >();
IEnumerable <string> activityIds = Activities.Select(a => a.Id);
activityService.LoadActivityStates(sessionState.Student.Id, activityIds).Start(onCompleted, onError);
})
.Then((prevResult, onCompleted, onError) =>
{
DebugLog.Info("Activity States loaded");
ActivityStates = prevResult.ResultAs <List <ActivityState> >();
onCompleted(true);
})
.Catch((Exception e) =>
{
DebugLog.Error("Can't load activitues: {0}", e.Message);
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable to load activity information.";
alert.Message = e.Message;
alert.Error = e;
alert.AlertDismissed += ((int index) => DebugLog.Info("Button {0} pressed", index));
}).Start();
}).Finally(() =>
{
busyIndicator.Dispose();
}).Start();
onRevealed(true);
}).Start();
}
catch (Exception e)
{
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable load activity information";
alert.Message = e.Message;
alert.Error = e;
}).Start();
}
}
public ProgressInfo(ProgressIndicatorViewModel busyViewModel, string message, bool isBlocking = true)
{
Contract.ArgumentNotNull("busyViewModel", busyViewModel);
Contract.ArgumentNotNull("message", message);
StartTime = DateTime.Now;
ViewModel = busyViewModel;
Message = message;
IsBlocking = isBlocking;
busyViewModel.Add(this);
}
public void StartActivity(Activity activity)
{
try
{
Contract.ArgumentNotNull("activity", activity);
DebugLog.Info("Started Activity {0}", activity.Name);
navigator.Reveal <ProgressIndicatorViewModel>().Then((vm, onRevealed, onRevealError) =>
{
ProgressIndicatorViewModel progressIndicatorViewModel = vm.ResultAs <ProgressIndicatorViewModel>();
ProgressIndicatorViewModel.ProgressInfo busyIndicator = progressIndicatorViewModel.Begin("Starting...");
activityLauncher.Start(sessionState.Student, activity, false)
.Then((prevResult, onCompleted, onError) =>
{
navigator.Transition(this, prevResult.ResultAs <ActivityViewModel>());
onCompleted(true);
})
.Catch((Exception e) =>
{
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable to start activity";
alert.Message = e.Message;
alert.Error = e;
alert.AlertDismissed += ((int index) => DebugLog.Info("Button {0} pressed", index));
}).Start();
}).Finally(() =>
{
busyIndicator.Dispose();
}).Start();
}).Start();
}
catch (Exception e)
{
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable to start activity";
alert.Message = e.Message;
alert.Error = e;
}).Start();
}
}
protected override void OnBindingContextChanged(ViewModel oldViewModel, ViewModel newViewModel)
{
Contract.PropertyNotNull("message", message);
Contract.PropertyNotNull("cancelButton", cancelButton);
base.OnBindingContextChanged(oldViewModel, newViewModel);
ProgressIndicatorViewModel previousViewModel = oldViewModel as ProgressIndicatorViewModel;
if (previousViewModel != null)
{
previousViewModel.ProgressUpdated -= UpdateControls;
}
if (ViewModel != null)
{
ViewModel.ProgressUpdated += UpdateControls;
}
UpdateControls();
}
public void SignIn(string group, string username, string password)
{
try
{
if (string.IsNullOrEmpty(username))
{
throw new Exception("Username is blank");
}
if (string.IsNullOrEmpty(password))
{
throw new Exception("Password is blank");
}
sessionState.Student = null;
sessionState.Session = null;
DebugLog.Info("SignIn {0}...", username);
navigator.Reveal <ProgressIndicatorViewModel>().Then((vm, onRevealed, onRevealError) =>
{
ProgressIndicatorViewModel progressIndicatorViewModel = vm.ResultAs <ProgressIndicatorViewModel>();
ProgressIndicatorViewModel.ProgressInfo busyIndicator = progressIndicatorViewModel.Begin("Signing in...");
// TODO rgtaylor 2015-12-10 Replace hardcoded 'domain'
authenticator.SignIn(group, username, password)
.Then((prevResult, onCompleted, onError) =>
{
DebugLog.Info("Signed in {0}", username);
sessionState.Student = prevResult.ResultAs <Student>();
sessionService.Start(sessionState.Student.SessionGuid).Start(onCompleted, onError);
})
.Then((prevResult, onCompleted, onError) =>
{
DebugLog.Info("Session started");
sessionState.Session = prevResult.ResultAs <Session>();
courseSettingsService.LoadSettings(sessionState.Student.Id).Start(onCompleted, onError);
})
.Then((prevResult, onCompleted, onError) =>
{
DebugLog.Info("Settings loaded");
sessionState.CourseSettings = prevResult.ResultAs <CourseSettings>();
navigator.Transition(this, typeof(MainMenuViewModel));
onCompleted(true);
}).Catch((Exception e) =>
{
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable to sign in";
alert.Message = e.Message;
alert.Error = e;
alert.AlertDismissed += ((int index) => DebugLog.Info("Button {0} pressed", index));
});
}).Finally(() =>
{
busyIndicator.Dispose();
}).Start();
onRevealed(true);
}).Start();
}
catch (Exception e)
{
navigator.Reveal <AlertViewModel>(alert =>
{
alert.Title = "Unable to sign in";
alert.Message = e.Message;
alert.Error = e;
}).Start();
}
}
public ProgressInfo(ProgressIndicatorViewModel busyViewModel, string message, bool isBlocking = true)
{
Contract.ArgumentNotNull("busyViewModel",busyViewModel);
Contract.ArgumentNotNull("message", message );
StartTime = DateTime.Now;
ViewModel = busyViewModel;
Message = message;
IsBlocking = isBlocking;
busyViewModel.Add(this);
}
