mirror of
https://github.com/QL-Win/QuickLook.git
synced 2025-09-14 11:51:27 +00:00
Add Lottie Files animation preview support
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ema
@@ -0,0 +1,228 @@
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// Copyright © 2017-2025 QL-Win Contributors
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//
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// This file is part of QuickLook program.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using Microsoft.Web.WebView2.Core;
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using Microsoft.Web.WebView2.Wpf;
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using QuickLook.Common.Helpers;
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using QuickLook.Plugin.HtmlViewer;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace QuickLook.Plugin.ImageViewer.Webview.Svg;
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public class SvgImagePanel : WebpagePanel, IWebImagePanel
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{
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protected const string _resourcePrefix = "QuickLook.Plugin.ImageViewer.Resources.";
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protected internal static readonly Dictionary<string, byte[]> _resources = [];
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protected byte[] _homePage;
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private object _objectForScripting;
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public object ObjectForScripting
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{
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get => _objectForScripting;
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set
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{
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_objectForScripting = value;
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_webView?.EnsureCoreWebView2Async()
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.ContinueWith(_ =>
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_webView?.Dispatcher.Invoke(() =>
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_webView?.CoreWebView2.AddHostObjectToScript("external", value)
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)
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);
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}
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}
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static SvgImagePanel()
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{
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InitializeResources();
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}
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protected override void InitializeComponent()
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{
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_webView = new WebView2()
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{
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CreationProperties = new CoreWebView2CreationProperties
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{
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UserDataFolder = Path.Combine(SettingHelper.LocalDataPath, @"WebView2_Data\"),
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},
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};
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_webView.CoreWebView2InitializationCompleted += WebView_CoreWebView2InitializationCompleted;
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Content = _webView;
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}
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protected static void InitializeResources()
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{
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if (_resources.Any()) return;
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var assembly = Assembly.GetExecutingAssembly();
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foreach (var resourceName in assembly.GetManifestResourceNames())
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{
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if (!resourceName.StartsWith(_resourcePrefix)) continue;
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var relativePath = resourceName.Substring(_resourcePrefix.Length);
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if (relativePath.Equals("resources", StringComparison.OrdinalIgnoreCase)) continue;
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using var stream = assembly.GetManifestResourceStream(resourceName);
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if (stream == null) continue;
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var memoryStream = new MemoryStream();
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stream.CopyTo(memoryStream);
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_resources.Add($"/{relativePath.Replace('\\', '/')}", memoryStream.ToArray());
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}
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}
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public virtual void Preview(string path)
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{
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FallbackPath = Path.GetDirectoryName(path);
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ObjectForScripting ??= new ScriptHandler(path);
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_homePage = _resources["/svg2html.html"];
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NavigateToUri(new Uri("file://quicklook/"));
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}
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protected override void WebView_WebResourceRequested(object sender, CoreWebView2WebResourceRequestedEventArgs args)
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{
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Debug.WriteLine($"[{args.Request.Method}] {args.Request.Uri}");
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try
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{
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var requestedUri = new Uri(args.Request.Uri);
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if (requestedUri.Scheme == "file")
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{
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if (requestedUri.AbsolutePath == "/")
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{
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var response = _webView.CoreWebView2.Environment.CreateWebResourceResponse(
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new MemoryStream(_homePage), 200, "OK", MimeTypes.GetContentTypeHeader(".html"));
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args.Response = response;
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}
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else if (ContainsKey(requestedUri.AbsolutePath))
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{
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var stream = ReadStream(requestedUri.AbsolutePath);
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var response = _webView.CoreWebView2.Environment.CreateWebResourceResponse(
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stream, 200, "OK", MimeTypes.GetContentTypeHeader(Path.GetExtension(requestedUri.AbsolutePath)));
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args.Response = response;
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}
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else
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{
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var localPath = _fallbackPath + requestedUri.AbsolutePath.Replace('/', '\\');
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if (File.Exists(localPath))
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{
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var fileStream = File.OpenRead(localPath);
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var response = _webView.CoreWebView2.Environment.CreateWebResourceResponse(
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fileStream, 200, "OK", MimeTypes.GetContentTypeHeader());
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args.Response = response;
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}
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}
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}
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else if (requestedUri.Scheme == "https" || requestedUri.Scheme == "http")
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{
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var localPath = Uri.UnescapeDataString($"{requestedUri.Authority}:{requestedUri.AbsolutePath}".Replace('/', '\\'));
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if (localPath.StartsWith(_fallbackPath, StringComparison.OrdinalIgnoreCase))
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{
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if (File.Exists(localPath))
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{
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var fileStream = File.OpenRead(localPath);
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var response = _webView.CoreWebView2.Environment.CreateWebResourceResponse(
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fileStream, 200, "OK",
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$"""
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Access-Control-Allow-Origin: *
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Content-Type: {MimeTypes.GetMimeType()}
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"""
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);
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args.Response = response;
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}
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}
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}
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}
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catch (Exception e)
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{
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// We don't need to feel burdened by any exceptions
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Debug.WriteLine(e);
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}
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}
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public static bool ContainsKey(string key)
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{
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return _resources.ContainsKey(key);
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}
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public static Stream ReadStream(string key)
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{
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byte[] bytes = _resources[key];
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return new MemoryStream(bytes);
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}
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public static string ReadString(string key)
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{
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using var reader = new StreamReader(ReadStream(key), Encoding.UTF8);
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return reader.ReadToEnd();
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}
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public static class MimeTypes
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{
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public const string Html = "text/html";
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public const string JavaScript = "application/javascript";
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public const string Json = "application/json";
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public const string Css = "text/css";
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public const string Binary = "application/octet-stream";
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public static string GetContentTypeHeader(string extension = null) => $"Content-Type: {GetMimeType(extension)}";
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public static string GetMimeType(string extension = null) => extension?.ToLowerInvariant() switch
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{
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".js" => JavaScript, // Only handle known extensions from resources
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".json" => Json,
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".css" => Css,
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".html" => Html,
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_ => Binary,
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};
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}
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}
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[ClassInterface(ClassInterfaceType.AutoDual)]
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[ComVisible(true)]
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public sealed class ScriptHandler(string path)
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{
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public string Path { get; } = path;
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public async Task<string> GetPath()
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{
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return await Task.FromResult(new Uri(Path).AbsolutePath);
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}
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public async Task<string> GetSvgContent()
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{
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if (File.Exists(Path))
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{
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var bytes = File.ReadAllBytes(Path);
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return await Task.FromResult(Encoding.UTF8.GetString(bytes));
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}
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return string.Empty;
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}
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}
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@@ -0,0 +1,93 @@
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// Copyright © 2017-2025 QL-Win Contributors
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//
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// This file is part of QuickLook program.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Text.RegularExpressions;
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using System.Windows;
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using System.Xml.Linq;
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namespace QuickLook.Plugin.ImageViewer.Webview.Svg;
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public class SvgMetaProvider(string path) : IWebMetaProvider
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{
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private readonly string _path = path;
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private Size _size = Size.Empty;
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public Size GetSize()
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{
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if (_size != Size.Empty)
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{
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return _size;
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}
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if (!File.Exists(_path))
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{
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return _size;
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}
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try
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{
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var svgContent = File.ReadAllText(_path);
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var svg = XElement.Parse(svgContent);
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XNamespace ns = svg.Name.Namespace;
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string widthAttr = svg.Attribute("width")?.Value;
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string heightAttr = svg.Attribute("height")?.Value;
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float? width = TryParseSvgLength(widthAttr);
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float? height = TryParseSvgLength(heightAttr);
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if (width.HasValue && height.HasValue)
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{
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_size = new Size { Width = width.Value, Height = height.Value };
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}
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string viewBoxAttr = svg.Attribute("viewBox")?.Value;
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if (!string.IsNullOrEmpty(viewBoxAttr))
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{
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var parts = viewBoxAttr.Split([' ', ','], StringSplitOptions.RemoveEmptyEntries);
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if (parts.Length == 4 &&
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float.TryParse(parts[2], out float vbWidth) &&
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float.TryParse(parts[3], out float vbHeight))
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{
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_size = new Size { Width = vbWidth, Height = vbHeight };
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}
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}
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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}
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return _size;
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}
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private static float? TryParseSvgLength(string input)
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{
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if (string.IsNullOrEmpty(input))
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return null;
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var match = Regex.Match(input.Trim(), @"^([\d.]+)(px|pt|mm|cm|in|em|ex|%)?$", RegexOptions.IgnoreCase);
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if (match.Success && float.TryParse(match.Groups[1].Value, out float value))
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{
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return value;
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}
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return null;
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}
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}
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