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Yizzho/peek/videos (#25983)
* Add basics of VideoPreviewer to build on * WIP * Minimal working code, todo next:dimension + MTC * Nits * Change back to GetImageSize as it indeed doesn't work with videos * Add win32 helper methods to get video size; Refactor get size operation; * Remove unused code * Set VideoTask; Add message error for HR result; * Add open read only for filestream * Remove unused code * Update expect.txt * Remove comment * Cleanup code * Force pause videopreview on previewer change --------- Co-authored-by: Jojo Zhou <yizzho@microsoft.com> Co-authored-by: Yawen Hou <yawenhou@microsoft.com> Co-authored-by: Clint Rutkas <clint@rutkas.com> Co-authored-by: Yawen Hou <Sytta@users.noreply.github.com> Co-authored-by: Samuel Chapleau 🌈 <sachaple@microsoft.com>
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Jojo Zhou
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// Copyright (c) Microsoft Corporation
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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using CommunityToolkit.Mvvm.ComponentModel;
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using Microsoft.UI.Dispatching;
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using Microsoft.UI.Xaml.Media;
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using Microsoft.UI.Xaml.Media.Imaging;
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using Peek.Common.Extensions;
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using Peek.Common.Helpers;
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using Peek.Common.Models;
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using Peek.FilePreviewer.Exceptions;
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using Peek.FilePreviewer.Previewers.Helpers;
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using Peek.FilePreviewer.Previewers.Interfaces;
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using Windows.Foundation;
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namespace Peek.FilePreviewer.Previewers
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{
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public partial class ImagePreviewer : ObservableObject, IImagePreviewer, IDisposable
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{
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[ObservableProperty]
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private ImageSource? preview;
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[ObservableProperty]
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private PreviewState state;
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[ObservableProperty]
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private Size? imageSize;
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[ObservableProperty]
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private Size maxImageSize;
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[ObservableProperty]
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private double scalingFactor;
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public ImagePreviewer(IFileSystemItem file)
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{
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Item = file;
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Dispatcher = DispatcherQueue.GetForCurrentThread();
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}
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private IFileSystemItem Item { get; }
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private DispatcherQueue Dispatcher { get; }
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private Task<bool>? LowQualityThumbnailTask { get; set; }
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private Task<bool>? HighQualityThumbnailTask { get; set; }
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private Task<bool>? FullQualityImageTask { get; set; }
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private bool IsHighQualityThumbnailLoaded => HighQualityThumbnailTask?.Status == TaskStatus.RanToCompletion;
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private bool IsFullImageLoaded => FullQualityImageTask?.Status == TaskStatus.RanToCompletion;
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public static bool IsFileTypeSupported(string fileExt)
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{
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return _supportedFileTypes.Contains(fileExt);
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}
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public void Dispose()
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{
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GC.SuppressFinalize(this);
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}
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public async Task<Size?> GetPreviewSizeAsync(CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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if (IsSvg(Item))
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{
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var size = await Task.Run(Item.GetSvgSize);
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if (size != null)
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{
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ImageSize = size.Value;
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}
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}
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else
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{
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ImageSize = await Task.Run(Item.GetImageSize);
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if (ImageSize == null)
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{
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ImageSize = await WICHelper.GetImageSize(Item.Path);
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}
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}
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return ImageSize;
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}
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public async Task LoadPreviewAsync(CancellationToken cancellationToken)
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{
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State = PreviewState.Loading;
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LowQualityThumbnailTask = LoadLowQualityThumbnailAsync(cancellationToken);
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HighQualityThumbnailTask = LoadHighQualityThumbnailAsync(cancellationToken);
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FullQualityImageTask = LoadFullQualityImageAsync(cancellationToken);
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cancellationToken.ThrowIfCancellationRequested();
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await Task.WhenAll(LowQualityThumbnailTask, HighQualityThumbnailTask, FullQualityImageTask);
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if (Preview == null && HasFailedLoadingPreview())
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{
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State = PreviewState.Error;
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}
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}
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public async Task CopyAsync()
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{
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await Dispatcher.RunOnUiThread(async () =>
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{
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var storageItem = await Item.GetStorageItemAsync();
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ClipboardHelper.SaveToClipboard(storageItem);
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});
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}
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partial void OnPreviewChanged(ImageSource? value)
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{
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if (Preview != null)
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{
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State = PreviewState.Loaded;
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}
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}
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partial void OnScalingFactorChanged(double value)
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{
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UpdateMaxImageSize();
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}
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partial void OnImageSizeChanged(Size? value)
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{
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UpdateMaxImageSize();
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}
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private void UpdateMaxImageSize()
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{
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var imageWidth = ImageSize?.Width ?? 0;
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var imageHeight = ImageSize?.Height ?? 0;
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if (ScalingFactor != 0)
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{
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MaxImageSize = new Size(imageWidth / ScalingFactor, imageHeight / ScalingFactor);
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}
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else
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{
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MaxImageSize = new Size(imageWidth, imageHeight);
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}
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}
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private Task<bool> LoadLowQualityThumbnailAsync(CancellationToken cancellationToken)
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{
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return TaskExtension.RunSafe(async () =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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var hr = ThumbnailHelper.GetThumbnail(Item.Path, out IntPtr hbitmap, ThumbnailHelper.LowQualityThumbnailSize);
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if (hr != HResult.Ok)
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{
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Logger.LogError("Error loading low quality thumbnail - hresult: " + hr);
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throw new ImageLoadingException(nameof(hbitmap));
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}
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cancellationToken.ThrowIfCancellationRequested();
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await Dispatcher.RunOnUiThread(async () =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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var thumbnailBitmap = await BitmapHelper.GetBitmapFromHBitmapAsync(hbitmap, IsPng(Item), cancellationToken);
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if (!IsFullImageLoaded && !IsHighQualityThumbnailLoaded)
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{
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Preview = thumbnailBitmap;
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}
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});
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});
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}
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private Task<bool> LoadHighQualityThumbnailAsync(CancellationToken cancellationToken)
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{
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return TaskExtension.RunSafe(async () =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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var hr = ThumbnailHelper.GetThumbnail(Item.Path, out IntPtr hbitmap, ThumbnailHelper.HighQualityThumbnailSize);
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if (hr != HResult.Ok)
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{
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Logger.LogError("Error loading high quality thumbnail - hresult: " + hr);
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throw new ImageLoadingException(nameof(hbitmap));
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}
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cancellationToken.ThrowIfCancellationRequested();
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await Dispatcher.RunOnUiThread(async () =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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var thumbnailBitmap = await BitmapHelper.GetBitmapFromHBitmapAsync(hbitmap, IsPng(Item), cancellationToken);
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if (!IsFullImageLoaded)
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{
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Preview = thumbnailBitmap;
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}
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});
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});
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}
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private Task<bool> LoadFullQualityImageAsync(CancellationToken cancellationToken)
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{
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return TaskExtension.RunSafe(async () =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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using FileStream stream = ReadHelper.OpenReadOnly(Item.Path);
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await Dispatcher.RunOnUiThread(async () =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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if (IsSvg(Item))
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{
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var source = new SvgImageSource();
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source.RasterizePixelHeight = ImageSize?.Height ?? 0;
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source.RasterizePixelWidth = ImageSize?.Width ?? 0;
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var loadStatus = await source.SetSourceAsync(stream.AsRandomAccessStream());
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if (loadStatus != SvgImageSourceLoadStatus.Success)
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{
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Logger.LogError("Error loading SVG: " + loadStatus.ToString());
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throw new ImageLoadingException(nameof(source));
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}
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Preview = source;
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}
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else
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{
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var bitmap = new BitmapImage();
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await bitmap.SetSourceAsync(stream.AsRandomAccessStream());
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Preview = bitmap;
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}
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});
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});
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}
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private bool HasFailedLoadingPreview()
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{
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var hasFailedLoadingLowQualityThumbnail = !(LowQualityThumbnailTask?.Result ?? true);
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var hasFailedLoadingHighQualityThumbnail = !(HighQualityThumbnailTask?.Result ?? true);
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var hasFailedLoadingFullQualityImage = !(FullQualityImageTask?.Result ?? true);
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return hasFailedLoadingLowQualityThumbnail && hasFailedLoadingHighQualityThumbnail && hasFailedLoadingFullQualityImage;
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}
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private bool IsPng(IFileSystemItem item)
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{
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return item.Extension == ".png";
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}
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private bool IsSvg(IFileSystemItem item)
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{
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return item.Extension == ".svg";
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}
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private static readonly HashSet<string> _supportedFileTypes = new HashSet<string>
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{
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// Image types
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".bmp",
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".gif",
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".jpg",
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".jfif",
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".jfi",
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".jif",
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".jpeg",
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".jpe",
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".png",
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".tif", // very slow for large files: no thumbnail?
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".tiff", // NEED TO TEST
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".dib", // NEED TO TEST
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".heic",
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".heif",
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".hif", // NEED TO TEST
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".avif", // NEED TO TEST
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".jxr",
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".wdp",
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".ico", // NEED TO TEST
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".thumb", // NEED TO TEST
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// Raw types
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".arw",
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".cr2",
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".crw",
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".erf",
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".kdc", // NEED TO TEST
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".mrw",
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".nef",
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".nrw",
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".orf",
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".pef",
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".raf",
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".raw",
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".rw2",
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".rwl",
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".sr2",
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".srw",
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".srf",
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".dcs", // NEED TO TEST
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".dcr",
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".drf", // NEED TO TEST
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".k25",
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".3fr",
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".ari", // NEED TO TEST
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".bay", // NEED TO TEST
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".cap", // NEED TO TEST
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".iiq",
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".eip", // NEED TO TEST
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".fff",
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".mef",
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// ".mdc", // Crashes in GetFullBitmapFromPathAsync
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".mos",
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".R3D",
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".rwz", // NEED TO TEST
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".x3f",
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".ori",
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".cr3",
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".svg",
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};
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}
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}
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