public async Task <PhotoViewModel> AddPhoto(PhotoViewModel photo)
{
PhotoViewModel newPhoto = await AddPhoto(photo.ImagePath);
newPhoto.SetAllPropertiesExceptForKeys(photo);
return(newPhoto);
}
// Update all properties except for Keys
internal void SetAllPropertiesExceptForKeys(PhotoViewModel photo)
{
StartBatchUpdate();
{
Title = photo.Title;
Description = photo.Description;
Location = photo.Location;
Photographer = photo.Photographer;
CaptureDate = photo.CaptureDate;
_characters.Clear();
photo._characters.ToList().ForEach(c => AddNamedCharacter(c.Name));
}
EndBatchUpdate();
}
public async Task <PhotoViewModel> AddPhoto(StorageFile imageFile)
{
if (!imageFile.ContentType.Contains("image"))
{
throw new ArgumentException("Input file is not an image");
}
Photo photo = null;
try
{
photo = await Model.AddPhoto(imageFile);
}
catch (DuplicateObjectException)
{
var result = await Utils.ShowContentDialog(
"Add Photo",
$"Image {imageFile.Name} already exists in album.\n" +
"What would you like to do?",
"Override", "Make a copy", "Cancel");
switch (result)
{
case CustomContentDialogResult.Primary:
photo = await Model.AddPhoto(imageFile, NameCollisionOption.ReplaceExisting);
break;
case CustomContentDialogResult.Secondary:
photo = await Model.AddPhoto(imageFile, NameCollisionOption.GenerateUniqueName);
break;
default:
return(null);
}
}
var newPhoto = new PhotoViewModel(photo);
SubscribeToPhotoEvents(newPhoto);
_photos.Add(newPhoto);
return(newPhoto);
}
private void UnsubscribeFromPhotoEvents(PhotoViewModel photo)
{
photo.PropertyChanging -= Photo_PropertyChanging;
photo.PropertyChanged -= Photo_PropertyChanged;
}
private void SubscribeToPhotoEvents(PhotoViewModel photo)
{
photo.PropertyChanging += Photo_PropertyChanging;
photo.PropertyChanged += Photo_PropertyChanged;
}
internal void DeletePhoto(PhotoViewModel photo)
{
Model.DeletePhoto(photo.Model);
UnsubscribeFromPhotoEvents(photo);
_photos.Remove(photo);
}
public async Task MovePhoto(PhotoViewModel photo, AlbumViewModel targetAlbum)
{
await targetAlbum.AddPhoto(photo);
DeletePhoto(photo);
}