public static async Task <DocumentViewModel> LoadFromFileAsync(MainPageViewModel mainPageViewModel, IStorageFile file, string token)
{
var answer = new DocumentViewModel(mainPageViewModel);
await answer.LoadFromFileAsync(file, token, assignPayloadWithoutLoading : true);
return(answer);
}
public static async Task <MainPageViewModel> LoadAsync()
{
var viewModel = new MainPageViewModel();
viewModel.HostConfigEditor = await HostConfigEditorViewModel.LoadAsync(viewModel);
viewModel.HostConfigEditor.HostConfigChanged += viewModel.HostConfigEditor_HostConfigChanged;
var tokens = await GetFileTokensAsync();
ObservableCollection <DocumentViewModel> documents = new ObservableCollection <DocumentViewModel>();
foreach (string token in tokens)
{
try
{
IStorageFile file;
if (token.StartsWith("SampleFile:"))
{
string fileName = token.Substring("SampleFile:".Length);
file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Samples/" + fileName));
}
else
{
file = await StorageApplicationPermissions.FutureAccessList.GetFileAsync(token);
}
if (file != null)
{
documents.Add(await DocumentViewModel.LoadFromFileAsync(viewModel, file, token));
}
}
catch { }
}
if (documents.Count == 0)
{
try
{
var samplesFolder = await Package.Current.InstalledLocation.GetFolderAsync("Samples");
foreach (var file in await samplesFolder.GetFilesAsync())
{
if (file.FileType.ToLower().Equals(".json"))
{
documents.Add(await DocumentViewModel.LoadFromFileAsync(viewModel, file, "SampleFile:" + file.Name));
}
}
}
catch { }
}
viewModel.OpenDocuments = documents;
viewModel.CurrentDocument = documents.FirstOrDefault();
return(viewModel);
}
public async void OpenDocument()
{
try
{
FileOpenPicker openPicker = new FileOpenPicker();
openPicker.ViewMode = PickerViewMode.List;
openPicker.FileTypeFilter.Add(".json");
StorageFile file = await openPicker.PickSingleFileAsync();
if (file != null)
{
string token = StorageApplicationPermissions.FutureAccessList.Add(file);
OpenDocuments.Add(await DocumentViewModel.LoadFromFileAsync(this, file, token));
CurrentDocument = OpenDocuments.LastOrDefault();
SaveFileTokensAsync();
}
else
{
}
}
catch { }
}
