public static bool Delete(Course course)
{
var tile = GetActiveTile(course);
if (tile == null)
{
return false;
}
tile.Delete();
return true;
}
public static void Update(string courseId, int newsCount)
{
Course course = new Course();
course.Id = courseId;
// TODO: Add additional information to this call to populate more interesting data
var data = CreateTileData(course, newsCount);
var tile = GetActiveTile(course);
if (tile != null)
{
tile.Update(data);
}
}
// Make this a single function to avoid multiple tiles of the same course
public static void CreateOrUpdate(Course course)
{
// TODO: Add additional information to this call to populate more interesting data
var data = CreateTileData(course, 0);
var tile = GetActiveTile(course);
if (tile != null)
{
tile.Update(data);
}
else
{
ShellTile.Create(GetCourseUri(course), data, false);
}
}
public void ShowCourse(Course course)
{
_frame.Navigate(PhoneNavigationController.MakeCoursePageUri(course));
}
public static Uri MakeCoursePageUri(Course course)
{
return NoppaUtility.MakeUri("/CoursePage.xaml", "id", course.Id);
}
private static ShellTileData CreateTileData(Course course, int newsCount)
{
// TODO: Get more content as parameters in this function,
// in particular, don't call any async methods in here
// because that information should already be available to
// the caller. If it's not, when the new information is
// available, it can check whether the tile is active and
// update it then.
return new IconicTileData()
{
Title = course.Id,
Count = newsCount
};
}
public static bool Exists(Course course)
{
return course != null && GetActiveTile(course) != null;
}
private static Uri GetCourseUri(Course course)
{
return NoppaUtility.MakeUri("/CoursePage.xaml", "id", course.Id);
}
private static ShellTile GetActiveTile(Course course)
{
var uri = GetCourseUri(course);
var tiles = ShellTile.ActiveTiles;
foreach (var tile in tiles)
{
if (tile.NavigationUri.Equals(uri))
{
return tile;
}
}
return null;
}
public async Task LoadContentAsync(INavigationController navigationController)
{
if (IsLoading)
{
return;
}
IsLoading = true;
_course = await NoppaAPI.GetCourse(Code);
_toggleSecondaryTileCommand.NotifyCanExecuteChanged();
UpdateToggleCommandText();
List<CourseContentViewModel> viewmodels = new List<CourseContentViewModel>()
{
new LecturesViewModel(),
new ExercisesViewModel(),
new ResultsViewModel(),
new AssignmentsViewModel(),
new EventsViewModel(navigationController)
};
List<Task<CourseContentViewModel>> tasks = new List<Task<CourseContentViewModel>>();
await Task.WhenAll(
/* Load Overview (already in the contents) */
OverviewModel.LoadDataAsync(Code),
/* Load News (already in the contents) */
NewsModel.LoadDataAsync(Code)
);
foreach (var vm in viewmodels)
tasks.Add(vm.LoadDataAsync(Code));
/* Add items in the order they are finished. */
while (tasks.Count > 0)
{
var task = await Task.WhenAny(tasks);
tasks.Remove(task);
var content = await task;
if (!content.IsEmpty)
{
int index = _contents.Count;
// Find the correct position
for (int i = 0; i < _contents.Count; i++)
{
if (_contents[i].Index > content.Index)
{
index = i;
break;
}
}
_contents.Insert(index, content);
NotifyPropertyChanged("Contents");
}
}
if (OverviewModel.OodiUrl != null)
{
OodiPageUri = new Uri(OverviewModel.OodiUrl);
}
IsLoading = false;
}
