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feat: improve UI/UX of font loading

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ema
2025-09-08 01:14:01 +08:00
parent cddf767c6c
commit 07debda5e4
3 changed files with 50 additions and 2 deletions
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18
QuickLook.Plugin/QuickLook.Plugin.FontViewer/WebfontPanel.cs
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@@ -26,6 +26,7 @@ using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading;
namespace QuickLook.Plugin.FontViewer;
@@ -34,6 +35,7 @@ public class WebfontPanel : WebpagePanel
protected const string _resourcePrefix = "QuickLook.Plugin.FontViewer.Resources.";
protected internal static readonly Dictionary<string, byte[]> _resources = [];
protected byte[] _homePage;
protected ObservableFileStream _fontStream = null;
static WebfontPanel()
{
@@ -153,10 +155,11 @@ public class WebfontPanel : WebpagePanel
if (File.Exists(localPath))
{
var fileStream = new FileStream(localPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete);
var fileStream = new ObservableFileStream(localPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete);
var response = _webView.CoreWebView2.Environment.CreateWebResourceResponse(
fileStream, 200, "OK", MimeTypes.GetContentType());
args.Response = response;
_fontStream = fileStream; // Only the font request will set this
}
}
}
@@ -168,6 +171,19 @@ public class WebfontPanel : WebpagePanel
}
}
public bool WaitForFontSent()
{
bool timeout = SpinWait.SpinUntil(
() => _fontStream is not null && _fontStream.IsEndOfStream,
TimeSpan.FromSeconds(1.5d) // The prediction is MAX 100MB
);
// Only when the `IsEndOfStream` is true
// Delay 15ms per MB for webview2 to render the font
if (timeout) Thread.Sleep(15 * (int)(_fontStream.Position / 1_048_576));
return timeout;
}
public static bool ContainsKey(string key)
{
return _resources.ContainsKey(key);