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fix: Highlight active docs sidebar item #13023

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Merged
anthonyshew merged 1 commit into from
Jun 4, 2026
Merged

fix: Highlight active docs sidebar item #13023

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38 changes: 28 additions & 10 deletions apps/docs/components/geistdocs/sidebar.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ import {
SidebarSeparator
} from "fumadocs-ui/components/sidebar/base";
import type { SidebarPageTreeComponents } from "fumadocs-ui/components/sidebar/page-tree";
import { usePathname } from "fumadocs-core/framework";
import { useTreeContext, useTreePath } from "fumadocs-ui/contexts/tree";
import { SiGithub } from "@icons-pack/react-simple-icons";
import { ExternalLinkIcon } from "lucide-react";
Expand All @@ -34,6 +35,16 @@ import { cn } from "@/lib/utils";
import { SearchButton } from "./search";
import { VersionWarning } from "@/components/version-warning";

const normalizePath = (path: string) => {
const normalized = path.length > 1 && path.endsWith("/") ? path.slice(0, -1) : path;
const docsPathStart = normalized.indexOf("/docs");

return docsPathStart > 0 ? normalized.slice(docsPathStart) : normalized;
};

const isActive = (href: string, pathname: string) =>
normalizePath(href) === normalizePath(pathname);

export const Sidebar: DocsSlots["sidebar"]["root"] = ({
className,
components
Expand Down Expand Up @@ -147,6 +158,7 @@ export const Folder: SidebarPageTreeComponents["Folder"] = ({
item
}) => {
const path = useTreePath();
const pathname = usePathname();
const defaultOpen = item.defaultOpen ?? path.includes(item);

return (
Expand All @@ -156,6 +168,7 @@ export const Folder: SidebarPageTreeComponents["Folder"] = ({
className="flex items-center gap-2 text-pretty py-1.5 text-muted-foreground text-sm transition-colors hover:text-foreground data-[active=true]:text-foreground [&_svg]:size-3.5"
external={item.index.external}
href={item.index.url}
active={isActive(item.index.url, pathname)}
>
{item.icon}
{item.name}
Expand All @@ -171,16 +184,21 @@ export const Folder: SidebarPageTreeComponents["Folder"] = ({
);
};

export const Item: SidebarPageTreeComponents["Item"] = ({ item }) => (
<SidebarItem
className="block w-full truncate text-pretty py-1.5 text-muted-foreground text-sm transition-colors hover:text-foreground data-[active=true]:text-foreground"
external={item.external}
href={item.url}
icon={item.icon}
>
{item.name}
</SidebarItem>
);
export const Item: SidebarPageTreeComponents["Item"] = ({ item }) => {
const pathname = usePathname();

return (
<SidebarItem
active={isActive(item.url, pathname)}
className="block w-full truncate text-pretty py-1.5 text-muted-foreground text-sm transition-colors hover:text-foreground data-[active=true]:text-foreground"
external={item.external}
href={item.url}
icon={item.icon}
>
{item.name}
</SidebarItem>
);
};

export const Separator: SidebarPageTreeComponents["Separator"] = ({ item }) => (
<SidebarSeparator className="mt-4 mb-2 flex items-center gap-2 px-0 font-medium text-sm first-child:mt-0">
Expand Down
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