private async Task InitRoamingSettingsHelperAsync()
{
switch (ProviderManager.Instance?.GlobalProvider?.State)
{
case ProviderState.SignedIn:
if (_remoteFileStorage == null)
{
_remoteFileStorage = await OneDriveStorageHelper.CreateForCurrentUserAsync(_serializer);
}
if (_remoteSettingsStorage == null)
{
_remoteSettingsStorage = await UserExtensionStorageHelper.CreateForCurrentUserAsync("ContosoNotes.json", _serializer);
}
break;
case ProviderState.SignedOut:
_remoteFileStorage = null;
_remoteSettingsStorage = null;
break;
}
}
private async Task <NotesListModel> GetNotesListAsync(IFileStorageHelper storageHelper)
{
if (storageHelper == null)
{
return(null);
}
// Get the list of stored notes.
string notesListFileName = "notesList.json";
try
{
NotesListModel notesList = await storageHelper.ReadFileAsync <NotesListModel>(notesListFileName);
return(notesList);
}
catch (System.Exception e)
{
return(null);
}
}
private async Task <NotePageModel> GetCurrentNotePage(ISettingsStorageHelper <string> settingsStorage, IFileStorageHelper fileStorage, NotesListModel notesList)
{
if (fileStorage == null || settingsStorage == null)
{
return(null);
}
if (settingsStorage.TryRead <string>("currentNotePageId", out string currentNotePageId) && currentNotePageId != null)
{
foreach (var notesListItem in notesList.Items)
{
if (currentNotePageId == notesListItem.NotePageId)
{
string notePageFileName = GetNotePageFileName(notesListItem);
return(await fileStorage.ReadFileAsync <NotePageModel>(notePageFileName));
}
}
}
return(null);
}
public GetFileHandler(IFileService fileService, IFileStorageHelper fileStorageHelper)
{
_fileService = fileService;
_fileStorageHelper = fileStorageHelper;
}