private async void Model_AddedNew(object sender, Csla.Core.AddedNewEventArgs <FileReference> e)
{
if (IsAdding)
{
return;
}
IsAdding = true;
var newItem = e.NewObject;
var destinationDirectory = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
var fileName = GenerateUniqueFileNameFor(destinationDirectory);
PrepareToShowModal();
var fullFileName = await DependencyService.Get <IPhotoPicker>().GetCopiedFilePath(destinationDirectory, fileName);
if (fullFileName == null)
{
if (newItem != null)
{
Model.Remove(newItem);
}
return;
}
newItem.FileName = fullFileName;
var photoVM = new PhotoViewModel(newItem);
await photoVM.InitializeAsync();
PhotoViewModels.Add(photoVM);
IsAdding = false;
}
public Photos(FileReferenceList fileReferenceList)
{
IsAdding = false;
Model = fileReferenceList;
_choosePhotoCommand = new Command(ChoosePhoto);
_deletePhotoCommand = new Command(async obj =>
{
var photoVM = (PhotoViewModel)obj;
PhotoViewModels.Remove(photoVM);
var fileRef = photoVM.FileReference;
Model.Remove(fileRef);
var documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
var fullPath = Path.Combine(documentsPath, fileRef.FileName);
if (File.Exists(fullPath))
{
await Task.Run(() => File.Delete(fullPath));
}
});
Model.AddedNew += async(o, e) =>
{
if (IsAdding)
{
return;
}
IsAdding = true;
var newItem = e.NewObject;
var destinationDirectory = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
var fileName = GenerateUniqueFileNameFor(destinationDirectory);
PrepareToShowModal();
var fullFileName = await DependencyService.Get <IPhotoPicker>().GetCopiedFilePath(destinationDirectory, fileName);
if (fullFileName == null)
{
if (newItem != null)
{
Model.Remove(newItem);
}
return;
}
newItem.FileName = fullFileName;
var photoVM = new PhotoViewModel(newItem);
await photoVM.InitializeAsync();
PhotoViewModels.Add(photoVM);
IsAdding = false;
};
PhotoViewModels = new ObservableCollection <PhotoViewModel>();
}
private void ChoosePhoto()
{
Model.AddedNew += (async(o, e) =>
{
var newItem = e.NewObject;
var rootFolder = FileSystem.Current.LocalStorage;
var fileName = await GenerateUniqueFileNameFor(FileSystem.Current.LocalStorage);
var path = await DependencyService.Get <IPhotoPicker>().GetCopiedFilePath(rootFolder.Path, fileName);
if (path == null)
{
Model.Remove(newItem);
return;
}
newItem.FileName = path;
var photoVM = new PhotoViewModel(newItem);
await photoVM.InitializeAsync();
PhotoViewModels.Add(photoVM);
});
BeginAddNew();
}
