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feat: extension settings card and presence script fix #133

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Merged
stylessh merged 1 commit into from
Apr 16, 2026
Merged

feat: extension settings card and presence script fix #133

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2 changes: 1 addition & 1 deletion apps/dashboard/src/lib/extension-store-url.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ export const CHROME_EXTENSION_STORE_URL =
"https://chromewebstore.google.com/detail/celjddfjncnnkgfgldobcahfiimlebll/" as const;

export const FIREFOX_EXTENSION_STORE_URL =
"https://addons.mozilla.org/en-US/firefox/addon/diffkit/" as const;
"https://addons.mozilla.org/addon/diffkit/" as const;

function isFirefoxFamilyUserAgent(ua: string): boolean {
// Desktop Firefox: "Firefox/123"; Firefox iOS: "FxiOS/123"; avoid relying on siteConfig.
Expand Down
76 changes: 75 additions & 1 deletion apps/dashboard/src/routes/_protected/settings/index.tsx
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Original file line number Diff line number Diff line change
@@ -1,9 +1,19 @@
import { MoonIcon, SunIcon, SystemIcon } from "@diffkit/icons";
import {
CheckIcon,
DownloadIcon,
MoonIcon,
SunIcon,
SystemIcon,
} from "@diffkit/icons";
import { Button } from "@diffkit/ui/components/button";
import { Logo } from "@diffkit/ui/components/logo";
import { cn } from "@diffkit/ui/lib/utils";
import { createFileRoute, Link } from "@tanstack/react-router";
import { useTheme } from "next-themes";
import { useEffect, useState } from "react";
import { signOutToLogin } from "#/lib/auth-actions";
import { isDiffKitExtensionPresent } from "#/lib/diffkit-extension-detect";
import { getExtensionStoreInstallUrl } from "#/lib/extension-store-url";
import { useHasMounted } from "#/lib/use-has-mounted";

const themeOptions = [
Expand Down Expand Up @@ -40,6 +50,13 @@ function GeneralSettingsPage() {
<ThemePicker />
</SettingsSection>

<SettingsSection
title="Browser extension"
description="Automatically redirect GitHub pages to DiffKit."
>
<ExtensionCard />
</SettingsSection>

<SettingsSection
title="Repository access"
description="Manage which GitHub organizations and repositories DiffKit can access."
Expand Down Expand Up @@ -229,3 +246,60 @@ function SystemThemePreview() {
</div>
);
}

function ExtensionCard() {
const hasMounted = useHasMounted();
const [installed, setInstalled] = useState(false);

useEffect(() => {
if (!hasMounted) return;

setInstalled(isDiffKitExtensionPresent());

if (isDiffKitExtensionPresent()) return;

const el = document.documentElement;
const observer = new MutationObserver(() => {
if (isDiffKitExtensionPresent()) {
setInstalled(true);
observer.disconnect();
}
});
observer.observe(el, {
attributes: true,
attributeFilter: ["data-diffkit-extension"],
});
return () => observer.disconnect();
}, [hasMounted]);

const installHref = getExtensionStoreInstallUrl();

return (
<div className="flex items-center justify-between gap-4 rounded-xl border border-border/70 px-4 py-3.5">
<div className="flex min-w-0 items-center gap-3">
<Logo className="size-5 shrink-0" aria-hidden />
<div className="min-w-0">
<p className="text-sm font-medium">DiffKit Extension</p>
<p className="text-sm text-muted-foreground">
{installed
? "The extension is installed and active."
: "Redirect GitHub PRs, issues, and matching pages to DiffKit."}
</p>
</div>
</div>
{installed ? (
<span className="flex shrink-0 items-center gap-1.5 text-sm text-emerald-600 dark:text-emerald-400">
<CheckIcon size={14} strokeWidth={2} />
Installed
</span>
) : (
<Button asChild variant="outline" size="sm" className="shrink-0">
<a href={installHref} target="_blank" rel="noopener noreferrer">
<DownloadIcon size={14} strokeWidth={2} />
Install
</a>
</Button>
)}
</div>
);
}
12 changes: 11 additions & 1 deletion extensions/diffkit-redirect/dashboard-presence.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,10 +2,20 @@
* Runs on DiffKit web app origins so the site can detect the extension via DOM
* (`data-diffkit-extension` on <html>). Content scripts cannot share `window`
* with the page, but DOM attributes are visible to the app.
*
* Guard: Firefox may inject content scripts beyond the manifest `matches` when
* the user grants broader host permissions, so we verify the origin explicitly.
*/
(function markDiffKitExtensionPresent() {
try {
document.documentElement.dataset.diffkitExtension = "1";
const origin = location.origin;
if (
origin === "https://diff-kit.com" ||
origin === "http://localhost:3000" ||
origin === "http://127.0.0.1:3000"
) {
document.documentElement.dataset.diffkitExtension = "1";
}
} catch {
// ignore
}
Expand Down
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