internal static void OpenPhotoPreviewWindow(Photo photo, List <Photo> photoList, SearchResult searchResult, Window ownerWindow)
{
var photoPreview = new PhotoPreview(photo, photoList, searchResult)
{
Owner = ownerWindow
};
photoPreview.Show();
}
void ReleaseDesignerOutlets()
{
if (BaseView != null)
{
BaseView.Dispose();
BaseView = null;
}
if (PhotoPreview != null)
{
PhotoPreview.Dispose();
PhotoPreview = null;
}
if (ResizePhotoButton != null)
{
ResizePhotoButton.Dispose();
ResizePhotoButton = null;
}
if (SelectPhotoButton != null)
{
SelectPhotoButton.Dispose();
SelectPhotoButton = null;
}
}
async void UploadButton_Clicked(object sender, System.EventArgs e)
{
if (PhotoPreview.Source == null)
{
return;
}
LoadingOverlay.IsVisible = true;
LoadingAnimation.Play();
using (var stream = new MemoryStream())
{
var croppedImage = await PhotoPreview.GetImageAsJpegAsync();
await croppedImage.CopyToAsync(stream);
stream.Position = 0;
// Upload photo
var success = await viewModel.UploadPhoto(stream, file.Path);
if (success)
{
PhotoPreview.Source = null;
viewModel.Caption = string.Empty;
// Navigate back to categories page
App.AppShell.SelectedItem = null; // Hack: Xamarin.Forms Bug does not allow the same navigation twice otherwise
App.AppShell.SelectedItem = App.AppShell.Children.First();
Analytics.TrackEvent("Photo uploaded");
}
}
LoadingOverlay.IsVisible = false;
LoadingAnimation.Pause();
}
public PhotoPreviewViewModel(PhotoPreview photoPreviewWindow, Photo photo, List <Photo> photoList, SearchResult searchResult)
{
if (photoList is null)
{
throw new ArgumentNullException($"{photoList} is null");
}
PreviewPhoto = new ReactiveProperty <Photo>(photo).AddTo(Disposable);
_photoList = photoList;
_previewPhotoIndex = _photoList.IndexOf(photo);
Image = new ReactiveProperty <BitmapImage>(ImageHelper.GetNowLoadingImage()).AddTo(Disposable);
PreviewPhoto.Subscribe(async p =>
{
var task = new Task(() =>
{
var filePath = p?.FilePath ?? string.Empty;
if (!string.IsNullOrEmpty(filePath))
{
try
{
Image.Value = ImageHelper.LoadBitmapImage(p.FilePath);
}
catch (IOException e)
{
Image.Value = ImageHelper.GetFailedImage();
}
}
});
task.Start(TaskScheduler.FromCurrentSynchronizationContext());
});
PreviousCommand = new ReactiveCommand().AddTo(Disposable);
NextCommand = new ReactiveCommand().AddTo(Disposable);
UserList = PreviewPhoto.SelectMany(p => p?.MetaData?.Users ?? Enumerable.Empty <User>())
.ToReadOnlyReactiveCollection(
onReset: Observable
.Merge(
PreviousCommand,
NextCommand)
.Select(_ => Unit.Default))
.AddTo(Disposable);
WorldName = PreviewPhoto.Select(p => "World: " + p?.MetaData?.World ?? string.Empty).ToReadOnlyReactiveProperty().AddTo(Disposable);
PhotographerName = PreviewPhoto.Select(p => "Photographer: " + p?.MetaData?.Photographer ?? string.Empty).ToReadOnlyReactiveProperty().AddTo(Disposable);
PhotoDateTime = PreviewPhoto.Select(p => p?.MetaData?.Date?.ToString("yyyy/MM/dd HH:mm:ss", new CultureInfo("en-US")) ?? string.Empty).ToReadOnlyReactiveProperty().AddTo(Disposable);
PhotoNumber = PreviewPhoto.Select(_ => $"{_previewPhotoIndex + 1}/{_photoList.Count}").ToReadOnlyReactiveProperty().AddTo(Disposable);
UseTestFunction = new ReactiveProperty <bool>().AddTo(Disposable);
UseTestFunction.Value = Setting.Instance.Data.UseTestFunction;
OpenTwitterCommand = new ReactiveCommand <string>().AddTo(Disposable);
OpenExplorerCommand = new ReactiveCommand().AddTo(Disposable);
RotateL90Command = new ReactiveCommand().AddTo(Disposable);
RotateR90Command = new ReactiveCommand().AddTo(Disposable);
Rotate180Command = new ReactiveCommand().AddTo(Disposable);
FlipHorizontalCommand = new ReactiveCommand().AddTo(Disposable);
ShareToTwitterCommand = new ReactiveCommand().AddTo(Disposable);
UserSelectCommand = new ReactiveCommand <User>().AddTo(Disposable);
WorldSelectCommand = new ReactiveCommand <string>().AddTo(Disposable);
DateSelectCommand = new ReactiveCommand <DateTime>().AddTo(Disposable);
WindowCloseCommand = new ReactiveCommand <PhotoPreview>().AddTo(Disposable);
PreviousCommand.Subscribe(() =>
{
Image.Value = ImageHelper.GetNowLoadingImage();
_previewPhotoIndex = (_previewPhotoIndex - 1 + _photoList.Count) % _photoList.Count;
PreviewPhoto.Value = _photoList[_previewPhotoIndex];
}).AddTo(Disposable);
NextCommand.Subscribe(() =>
{
Image.Value = ImageHelper.GetNowLoadingImage();
_previewPhotoIndex = (_previewPhotoIndex + 1) % _photoList.Count;
PreviewPhoto.Value = _photoList[_previewPhotoIndex];
}).AddTo(Disposable);
OpenTwitterCommand.Subscribe(WindowHelper.OpenTwitterWithScreenName).AddTo(Disposable);
OpenExplorerCommand.Subscribe(() => WindowHelper.OpenFileExplorer(PreviewPhoto.Value.FilePath)).AddTo(Disposable);
RotateL90Command.Subscribe(() => ImageProcessing(PreviewPhoto.Value.FilePath, PreviewPhoto.Value.MetaData, searchResult, ImageHelper.RotateLeft90AndSave)).AddTo(Disposable);
RotateR90Command.Subscribe(() => ImageProcessing(PreviewPhoto.Value.FilePath, PreviewPhoto.Value.MetaData, searchResult, ImageHelper.RotateRight90AndSave)).AddTo(Disposable);
Rotate180Command.Subscribe(() => ImageProcessing(PreviewPhoto.Value.FilePath, PreviewPhoto.Value.MetaData, searchResult, ImageHelper.Rotate180AndSave)).AddTo(Disposable);
FlipHorizontalCommand.Subscribe(() => ImageProcessing(PreviewPhoto.Value.FilePath, PreviewPhoto.Value.MetaData, searchResult, ImageHelper.FilpHorizontalAndSave)).AddTo(Disposable);
ShareToTwitterCommand.Subscribe(() => WindowHelper.OpenShareDialog(PreviewPhoto.Value, photoPreviewWindow)).AddTo(Disposable);
UserSelectCommand.Subscribe(u => searchResult.SearchedUserName.Value = u.UserName).AddTo(Disposable);
WorldSelectCommand.Subscribe(w => searchResult.SearchedWorldName.Value = w).AddTo(Disposable);
DateSelectCommand.Subscribe(d => searchResult.SearchedDate.Value = d).AddTo(Disposable);
WindowCloseCommand.Subscribe(w => w.Close()).AddTo(Disposable);
}