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Diffstat (limited to 'apps/web/src/lib/fonts/google-fonts.ts')
-rw-r--r--apps/web/src/lib/fonts/google-fonts.ts26
1 files changed, 12 insertions, 14 deletions
diff --git a/apps/web/src/lib/fonts/google-fonts.ts b/apps/web/src/lib/fonts/google-fonts.ts
index 7e55dffd..580ce406 100644
--- a/apps/web/src/lib/fonts/google-fonts.ts
+++ b/apps/web/src/lib/fonts/google-fonts.ts
@@ -1,14 +1,16 @@
-import type { FontAtlas } from "@/types/fonts";
+import type { FontAtlas } from "@/lib/fonts/types";
import { SYSTEM_FONTS } from "@/constants/font-constants";
const GOOGLE_FONTS_CSS = "https://fonts.googleapis.com/css2";
+const FONT_ATLAS_PATH = "/fonts/font-atlas.json";
+const FONT_CHUNK_PATH_PREFIX = "/fonts/font-chunk-";
const fullLoaded = new Set<string>();
let cachedAtlas: FontAtlas | null = null;
let atlasFetchPromise: Promise<FontAtlas | null> | null = null;
-function encodeFamily(family: string): string {
+function encodeGoogleFontsFamily(family: string): string {
return family.replace(/ /g, "+");
}
@@ -19,17 +21,19 @@ export function getCachedFontAtlas(): FontAtlas | null {
export function clearFontAtlasCache(): void {
cachedAtlas = null;
atlasFetchPromise = null;
+ fullLoaded.clear();
}
-async function fetchAtlas(): Promise<FontAtlas | null> {
- if (cachedAtlas) return cachedAtlas;
+export function loadFontAtlas(): Promise<FontAtlas | null> {
+ if (cachedAtlas) return Promise.resolve(cachedAtlas);
if (atlasFetchPromise) return atlasFetchPromise;
- atlasFetchPromise = fetch("/fonts/font-atlas.json")
+ atlasFetchPromise = fetch(FONT_ATLAS_PATH)
.then(async (response) => {
if (!response.ok) return null;
const data: FontAtlas = await response.json();
cachedAtlas = data;
+ preloadChunkImages({ atlas: data });
return data;
})
.catch(() => null);
@@ -42,18 +46,12 @@ function preloadChunkImages({ atlas }: { atlas: FontAtlas }): void {
...Object.values(atlas.fonts).map((entry) => entry.ch),
);
for (let i = 0; i <= maxChunk; i++) {
+ // hint browser to preload chunk images without blocking
const img = new Image();
- img.src = `/fonts/font-chunk-${i}.avif`;
+ img.src = `${FONT_CHUNK_PATH_PREFIX}${i}.avif`;
}
}
-export function prefetchFontAtlas(): Promise<FontAtlas | null> {
- return fetchAtlas().then((atlas) => {
- if (atlas) preloadChunkImages({ atlas });
- return atlas;
- });
-}
-
export async function loadFullFont({
family,
weights = [400, 700],
@@ -63,7 +61,7 @@ export async function loadFullFont({
}): Promise<void> {
if (fullLoaded.has(family)) return;
- const url = `${GOOGLE_FONTS_CSS}?family=${encodeFamily(family)}:wght@${weights.join(";")}&display=swap`;
+ const url = `${GOOGLE_FONTS_CSS}?family=${encodeGoogleFontsFamily(family)}:wght@${weights.join(";")}&display=swap`;
const link = document.createElement("link");
link.rel = "stylesheet";
link.href = url;