feat: 100% self-hosted Habbo fonts via sprite sheets + client-side compositor
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openhands committed
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@@ -1,20 +1,22 @@
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"use client";
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import { useCallback, useMemo, useState, useTransition } from "react";
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import { useCallback, useEffect, useMemo, useRef, useState, useTransition } from "react";
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import { ContentCard } from "@/components/public/ui";
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import { saveLogoFromUrl } from "@/actions/save-logo";
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import { HABBO_FONT_GROUPS, buildFontUrl } from "@/components/public/habbo-fonts";
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import { saveLogo } from "@/actions/save-logo";
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import { HABBO_FONT_GROUPS } from "@/components/public/habbo-fonts";
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import { getFontInfo, measureText, renderToCanvas } from "@/components/public/sprite-font";
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export default function LogoGenerator() {
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const [text, setText] = useState("Atom");
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const [styleName, setStyleName] = useState("habbo");
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const [search, setSearch] = useState("");
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const [saveStatus, setSaveStatus] = useState<"idle" | "saving" | "done" | "error">("idle");
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const [imgError, setImgError] = useState(false);
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const [fontLoaded, setFontLoaded] = useState(false);
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const [fontError, setFontError] = useState(false);
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const [, startTransition] = useTransition();
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const canvasRef = useRef<HTMLCanvasElement>(null);
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const safeText = text.trim() || "Your hotel";
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const gifUrl = useMemo(() => buildFontUrl(styleName, safeText), [styleName, safeText]);
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const currentFont = useMemo(
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() => HABBO_FONT_GROUPS.flatMap((g) => g.fonts).find((f) => f.styleName === styleName),
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@@ -36,26 +38,63 @@ export default function LogoGenerator() {
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[search],
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);
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// Load font and render preview
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useEffect(() => {
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let cancelled = false;
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setFontLoaded(false);
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setFontError(false);
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getFontInfo(styleName)
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.then((info) => {
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if (cancelled) return;
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const canvas = renderToCanvas(info.chars, info.h, info.sheet, safeText, 12);
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if (canvas && canvasRef.current) {
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canvasRef.current.width = canvas.width;
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canvasRef.current.height = canvas.height;
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const ctx = canvasRef.current.getContext("2d");
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ctx?.drawImage(canvas, 0, 0);
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}
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setFontLoaded(true);
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})
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.catch(() => {
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if (!cancelled) setFontError(true);
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});
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return () => { cancelled = true; };
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}, [styleName, safeText]);
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const handleDownload = useCallback(() => {
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window.open(gifUrl, "_blank");
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}, [gifUrl]);
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const canvas = canvasRef.current;
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if (!canvas) return;
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canvas.toBlob((blob) => {
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if (!blob) return;
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const a = document.createElement("a");
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a.href = URL.createObjectURL(blob);
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a.download = `${safeText.replace(/[^a-z0-9]+/gi, "_") || "logo"}.png`;
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a.click();
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URL.revokeObjectURL(a.href);
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}, "image/png");
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}, [safeText]);
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const handleSave = useCallback(() => {
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const canvas = canvasRef.current;
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if (!canvas) return;
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setSaveStatus("saving");
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startTransition(async () => {
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const result = await saveLogoFromUrl(
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`${window.location.origin}${gifUrl}`,
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);
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setSaveStatus(result.success ? "done" : "error");
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setTimeout(() => setSaveStatus("idle"), 3000);
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});
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}, [gifUrl, startTransition]);
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canvas.toBlob((blob) => {
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if (!blob) { setSaveStatus("error"); return; }
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const file = new File([blob], "logo.png", { type: "image/png" });
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const fd = new FormData();
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fd.append("file", file);
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startTransition(async () => {
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const result = await saveLogo(fd);
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setSaveStatus(result.success ? "done" : "error");
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setTimeout(() => setSaveStatus("idle"), 3000);
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});
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}, "image/png");
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}, [startTransition]);
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const [zipping, setZipping] = useState(false);
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const allFonts = useMemo(
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() => HABBO_FONT_GROUPS.flatMap((g) => g.fonts),
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[],
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);
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const allFonts = useMemo(() => HABBO_FONT_GROUPS.flatMap((g) => g.fonts), []);
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const handleDownloadAll = useCallback(async () => {
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if (zipping) return;
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@@ -64,26 +103,26 @@ export default function LogoGenerator() {
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const JSZip = (await import("jszip")).default;
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const zip = new JSZip();
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const folder = zip.folder(safeText.replace(/[^a-z0-9]+/gi, "_") || "logo")!;
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const results = await Promise.allSettled(
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allFonts.map(async (font) => {
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const url = buildFontUrl(font.styleName, safeText);
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const res = await fetch(url);
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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const blob = await res.blob();
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folder.file(`${font.styleName}.gif`, blob);
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}),
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);
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let fail = 0;
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for (const font of allFonts) {
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try {
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const info = await getFontInfo(font.styleName);
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const canvas = renderToCanvas(info.chars, info.h, info.sheet, safeText, 12);
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if (!canvas) { fail++; continue; }
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const blob = await new Promise<Blob | null>((r) => canvas.toBlob((b) => r(b), "image/png"));
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if (blob) folder.file(`${font.styleName}.png`, blob);
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else fail++;
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} catch { fail++; }
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}
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const failed = results.filter((r) => r.status === "rejected").length;
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const content = await zip.generateAsync({ type: "blob" });
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const a = document.createElement("a");
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a.href = URL.createObjectURL(content);
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a.download = `${safeText.replace(/[^a-z0-9]+/gi, "_") || "logo"}-all-fonts.zip`;
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a.click();
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URL.revokeObjectURL(a.href);
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if (failed > 0) {
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alert(`${allFonts.length - failed}/${allFonts.length} fonts downloaded. ${failed} failed.`);
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}
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if (fail > 0) alert(`${allFonts.length - fail}/${allFonts.length} fonts (${fail} failed)`);
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} catch {
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alert("Failed to create ZIP.");
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} finally {
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@@ -125,10 +164,7 @@ export default function LogoGenerator() {
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</span>
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<select
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value={styleName}
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onChange={(e) => {
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setStyleName(e.target.value);
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setImgError(false);
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}}
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onChange={(e) => setStyleName(e.target.value)}
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style={{ maxHeight: 320 }}
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size={Math.min(filteredGroups.flatMap((g) => g.fonts).length + filteredGroups.length, 12)}
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>
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@@ -144,14 +180,14 @@ export default function LogoGenerator() {
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</select>
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</label>
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<button type="button" className="btn btn-primary" onClick={handleDownload}>
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⬇️ Download GIF
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<button type="button" className="btn btn-primary" onClick={handleDownload} disabled={!fontLoaded}>
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⬇️ Download PNG
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</button>
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<button
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type="button"
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className="btn btn-primary"
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onClick={handleSave}
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disabled={saveStatus === "saving"}
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disabled={saveStatus === "saving" || !fontLoaded}
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>
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{saveStatus === "saving"
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? "⏳ Saving..."
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@@ -172,7 +208,7 @@ export default function LogoGenerator() {
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</div>
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</ContentCard>
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<ContentCard icon="👁️" title="Preview" subtitle="Rendered word via local proxy (cached on first load).">
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<ContentCard icon="👁️" title="Preview" subtitle="Rendered locally from sprite sheets.">
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<div
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style={{
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display: "grid",
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@@ -185,17 +221,12 @@ export default function LogoGenerator() {
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background: "repeating-conic-gradient(color-mix(in srgb, var(--color-text-muted) 14%, transparent) 0% 25%, transparent 0% 50%) 50% / 22px 22px",
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}}
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>
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{imgError ? (
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<p className="muted">Failed to load preview.</p>
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{fontError ? (
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<p className="muted">Failed to load font sprite.</p>
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) : fontLoaded ? (
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<canvas ref={canvasRef} style={{ maxWidth: "100%", height: "auto" }} />
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) : (
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// eslint-disable-next-line @next/next/no-img-element
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<img
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src={gifUrl}
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alt={`Logo preview: ${safeText} in ${currentFont?.name ?? styleName} font`}
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style={{ maxWidth: "100%", height: "auto" }}
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onError={() => setImgError(true)}
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onLoad={() => setImgError(false)}
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/>
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<p className="muted">Loading font…</p>
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)}
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</div>
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</ContentCard>
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