public Task SaveAsync(IDocumentFileModel file)
{
return(ForFileAsync(file, m => true, async model =>
{
await model.SaveAsync();
}));
}
public Task OpenAsync(IDocumentFileModel file)
{
return(ForFileAsync(file, m => m != selectedFile, async model =>
{
await processManager.RunMainProcessAsync(this, async() =>
{
await StoreBackupAsync();
if (await model.OpenAsync())
{
if (selectedFile != null)
{
await selectedFile.SaveSilentAsync();
if (!selectedFile.HasChanges)
{
selectedFile.Close();
}
}
selectedFile = model;
}
else
{
allFiles.Remove(file);
}
OnFileLoaded(selectedFile);
});
}));
}
private static void UpdateTitle(IDocumentFileModel file)
{
var name = string.Empty;
if (file != null)
{
name = file.Name;
if (file.HasChanges)
{
name += "*";
}
}
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal, () =>
{
var view = ApplicationView.GetForCurrentView();
if (view != null)
{
view.Title = name;
}
}).Forget();
}
public Task RenameAsync(IDocumentFileModel file, string newName)
{
Guard.ValidFileName(newName, nameof(newName));
return(ForFileAsync(file, m => true, async model =>
{
if (!await model.RenameAsync(newName))
{
if (selectedFile != model)
{
allFiles.Remove(file);
}
}
}));
}
private void Store_FileLoaded(object sender, DocumentFileEventArgs e)
{
UpdateTitle(e.File);
if (currentFile != null)
{
currentFile.PropertyChanged -= CurrentFile_PropertyChanged;
}
currentFile = e.File;
if (currentFile != null)
{
currentFile.PropertyChanged += CurrentFile_PropertyChanged;
}
}
public Task RemoveAsync(IDocumentFileModel file)
{
return(ForFileAsync(file, m => true, async model =>
{
if (await model.RemoveAsync())
{
allFiles.Remove(model);
if (selectedFile == model)
{
selectedFile = null;
OnFileLoaded(new DocumentFileEventArgs(null));
}
}
}));
}
private void OnFileLoaded(IDocumentFileModel file)
{
OnFileLoaded(new DocumentFileEventArgs(file));
}
private static Task ForFileAsync(IDocumentFileModel file, Predicate <DocumentFileModel> predicate, Func <DocumentFileModel, Task> action)
{
var model = file as DocumentFileModel;
return(model != null && predicate(model) ? action(model) : Task.FromResult(false));
}
public DocumentFileEventArgs(IDocumentFileModel file)
{
this.file = file;
}
