private void ClearChildren(ITreeNode TN)
{
if (items.Contains(TN))
{
int indexToRemove = this.items.IndexOf(TN) + 1;
while ((indexToRemove < this.items.Count) && (this.items[indexToRemove].Level > TN.Level))
{
items[indexToRemove].PropertyChanged -= new PropertyChangedEventHandler(TN_PropertyChanged);
items.RemoveAt(indexToRemove);
}
}
}
private async Task GetAllNotesAndUpdate()
{
Offline = !App.Cloud.IsConnected();
if (Offline)
{
return;
}
GettingLatestNotes = true;
var notes = await App.Cloud.GetAllNotes();
if (notes == null) // null if we time out trying to connect
{
return;
}
string cloudKey = SelectedNote?.CloudKey;
// Loop through the notes backwards so as to remove them if needed
for (int i = _notes.Count - 1; i >= 0; i--)
{
// Note exists in cloud - update if necessary
if (notes.ContainsKey(_notes[i]?.CloudKey ?? ""))
{
if (notes[_notes[i].CloudKey].LastModified > _notes[i].LastModified) // Cloud note is newer
{
await App.Cloud.GetNoteWithContent(_notes[i].NoteData);
await App.Local.UpdateNote(_notes[i].NoteData);
}
else if (notes[_notes[i].CloudKey].LastModified < _notes[i].LastModified) // Local note is newer
{
await App.Cloud.UpdateNote(_notes[i].NoteData);
}
notes.Remove(_notes[i].CloudKey);
}
// Note no longer exists in cloud, delete locally and in localDB
else if (!notes.ContainsKey(_notes[i]?.CloudKey ?? ""))
{
await App.Local.DeleteNote(_notes[i].NoteData);
_notes.RemoveAt(i);
}
}
// These are the new notes coming from the cloud
foreach (Note note in notes.Values)
{
await App.Cloud.GetNoteWithContent(note);
_notes.Add(new NoteViewModel(note));
await App.Local.AddNote(note);
}
if (String.IsNullOrEmpty(cloudKey) && _notes.Count > 0)
{
SelectedNote = _notes[0];
}
else
{
SelectedNote = _notes.Where(x => x.CloudKey == cloudKey).FirstOrDefault();
}
// Forces a refresh on the converter!
foreach (var note in _notes)
{
note.ForceLastModifiedConverterRefresh();
}
GettingLatestNotes = false;
}