// We want to kick off this method, we don't need to (a)wait for the response.
private async void Init()
{
var internalPaths = await CanvasRepository.GetInternalPathsAsync().ConfigureAwait(false);
var externalPaths = await Task.Run(() => CanvasRepository.GetExternalPaths(UpdatePaths));
if (internalPaths?.Count > 0)
{
Paths = internalPaths;
}
else
{
Paths = new List <Path>();
}
if (externalPaths?.Count > 0)
{
ExternalPaths = externalPaths;
}
else
{
ExternalPaths = new List <Path>();
}
UpdateCanvas?.Invoke();
}
void ClearAll()
{
CanvasRepository?.DeleteAllPaths();
Paths = new List <Path>();
UpdateCanvas?.Invoke();
Paths = new List <Path>();
ExternalPaths = new List <Path>();
}
void UndoLastPath()
{
var path = Paths?.Last();
if (path != null)
{
CanvasRepository?.DeletePath(path);
Paths.Remove(path);
UpdateCanvas?.Invoke();
}
}
void UpdatePaths(List <Path> paths)
{
ExternalPaths = paths;
var internalPaths = CanvasRepository.GetInternalPaths();
if (internalPaths == null || internalPaths?.Count == 0)
{
Paths = new List <Path>();
}
UpdateCanvas?.Invoke();
}
void UpdatePaths(List <Path> paths)
{
ExternalPaths = paths;
UpdateCanvas?.Invoke();
}
void SavePath(Path path)
{
Task.Run(() => CanvasRepository?.SavePath(path));
UpdateCanvas?.Invoke();
}