public virtual void MoveToTopSelectedItem()
{
if (Items == null || !Items.Any())
{
return;
}
foreach (var i in Items)
{
i.IsSelectedItemForView = false;
}
if (!SelectedItemIsNull)
{
SelectedItem.IsSelectedItemForView = true;
}
var item = SelectedItem;
var notSelected = Items.Where(x => !x.IsSelectedItemForView).ToList();
Items.Clear();
Items.Add(item);
Items.AddRange(notSelected);
SelectedItem = item;
Notify(nameof(Items));
CreateNewCommand?.NotifyCanExecuteChanged();
}
public FileCommands(Func <T> onCreate, Func <IStorageFile, Task <T> > loadFile, Func <IStorageFile, Task> saveFile, string[] loadExtensions, IEnumerable <KeyValuePair <string, IList <string> > > saveExtensions)
{
this.loadExtensions = loadExtensions;
this.saveExtensions = saveExtensions;
CreateNewCommand = ReactiveCommand.Create(onCreate);
CreateFromExistingCommand = ReactiveCommand.CreateFromObservable(() => Observable.FromAsync(PickFileToOpen)
.Where(f => f != null)
.SelectMany(loadFile));
Objects = CreateNewCommand.Merge(CreateFromExistingCommand);
SaveFileCommand = ReactiveCommand.CreateFromTask(async() =>
{
var file = await PickFileToSave();
if (file != null)
{
await saveFile(file);
}
}, CreateFromExistingCommand.Any());
IsBusy = CreateFromExistingCommand.IsExecuting.Merge(SaveFileCommand.IsExecuting);
CreateFromExistingCommand.ThrownExceptions.Subscribe(exception => { });
SaveFileCommand.ThrownExceptions.Subscribe(exception => { });
}
public virtual void ClearItems()
{
if (Items != null && AnyItem())
{
Items.Clear();
Notify(nameof(Items));
CreateNewCommand?.NotifyCanExecuteChanged();
}
}
public virtual void Remove(T item)
{
if (Items != null && AnyItem())
{
Items.Remove(item);
SelectedItem = Items.FirstOrDefault();
Notify(nameof(Items));
CreateNewCommand?.NotifyCanExecuteChanged();
}
}
public virtual void AddItem(T item)
{
if (Items != null)
{
Items.Add(item);
SelectedItem = item;
Notify(nameof(Items));
CreateNewCommand?.NotifyCanExecuteChanged();
}
}
public virtual void RemoveEmptyItems()
{
if (Items != null)
{
var data = Items.Where(x => x.Id == 0).ToList();
foreach (var d in data)
{
Items.Remove(d);
}
CreateNewCommand?.NotifyCanExecuteChanged();
}
}
public ExtendedSplashScreenViewModel(IMvxNavigationService navigationService)
{
CreateCommand = new CreateNewCommand(navigationService);
}
public void Refresh()
{
Notify(nameof(Items));
CreateNewCommand?.NotifyCanExecuteChanged();
}
private void LoadCommands()
{
LoadCommand = ReactiveCommand.CreateAsyncTask(async _ =>
{
var imageDefinition = await _imageLoadTask.PickThumbnailImage();
return(imageDefinition);
});
LoadCommand.Subscribe(LoadThumbnailImage);
SnapCommand = ReactiveCommand.CreateAsyncTask(async _ =>
{
var camera = new CameraCaptureUI();
var file = await camera.CaptureFileAsync(CameraCaptureUIMode.Photo);
return(await _imageLoadTask.GetImageDefinitionFromFile(file));
});
SnapCommand.Subscribe(LoadThumbnailImage);
SaveCommand =
ReactiveCommand.Create(this.WhenAny(x => x.PlayerDetails.IsDirty, x => x.PlayerDetails.Name,
x => x.PlayerDetails.NickName,
(isDirty, name, nickName) =>
isDirty.Value && !string.IsNullOrWhiteSpace(name.Value) &&
!string.IsNullOrWhiteSpace(nickName.Value)));
SaveCommand.Subscribe(arg => SaveCommandHandler());
SaveCommand.CanExecuteObservable.Subscribe(HandleSaveCanExecuteChangedHandler);
DeleteCommand = ReactiveCommand.Create(this.WhenAny(x => x.PlayerDetails.Id,
id => id.Value != Guid.Empty));
DeleteCommand.Subscribe(async arg => await DeleteCommandHandler());
DeleteCommand.CanExecuteObservable.Subscribe(HandleDeleteCanExecuteChangedHandler);
CreateNewCommand = ReactiveCommand.Create(this.WhenAnyValue(x => x.PlayerDetails.IsDirty)
.Select(x => !x).Skip(1));
CreateNewCommand.Subscribe(arg => CreateCommandHandler());
CreateNewCommand.CanExecuteObservable.Subscribe(HandleNewCanExecuteChangedHandler);
ShowStatsCommand = ReactiveCommand.Create();
ShowStatsCommand.Subscribe(arg =>
{
var newId = arg is Guid ? (Guid?)arg : null;
if (newId.HasValue)
{
ClickedPlayerId = newId.Value;
}
});
ShowStatsCommand.CanExecuteObservable.Subscribe(HandleShowStatsCommandChangedHandler);
PlayerSummaryCommand = ReactiveCommand.Create();
PlayerSummaryCommand.Subscribe(ShowSummary);
PlayerDetailCommand = ReactiveCommand.Create();
PlayerDetailCommand.Subscribe(ShowDetail);
}
