From f4bc9f1ecd72449dfdaf09ebbe6082833218504c Mon Sep 17 00:00:00 2001
From: Daniel Imms <2193314+Tyriar@users.noreply.github.com>
Date: Sun, 24 Jul 2022 19:47:18 -0700
Subject: [PATCH] Pull fonts using latest font access API in Chrome

Part of #958
---
 addons/xterm-addon-ligatures/src/font.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/addons/xterm-addon-ligatures/src/font.ts b/addons/xterm-addon-ligatures/src/font.ts
index 4075cc6c..3a3c799a 100644
--- a/addons/xterm-addon-ligatures/src/font.ts
+++ b/addons/xterm-addon-ligatures/src/font.ts
@@ -65,6 +65,22 @@ export default async function load(fontFamily: string, cacheSize: number): Promi
         console.error(err.name, err.message);
       }
     }
+    // Latest proposal
+    else if ('queryLocalFonts' in window) {
+      const fonts: Record<string, IFontMetadata[]> = {};
+      try {
+        const fontsIterator = await (window as any).queryLocalFonts(); // await (navigator as unknown as IFontAccessNavigator).fonts.query();
+        for (const metadata of fontsIterator) {
+          if (!fonts.hasOwnProperty(metadata.family)) {
+            fonts[metadata.family] = [];
+          }
+          fonts[metadata.family].push(metadata);
+        }
+        fontsPromise = Promise.resolve(fonts);
+      } catch (err: any) {
+        console.error(err.name, err.message);
+      }
+    }
     // Node environment or no font access API
     else {
       try {