sadf

README.md

@@ -3,11 +3,11 @@
 > MUI 7 Breadcrumbs with **Next.js Link** support, optional **URL-based generation**, and **built-in SEO microdata**. Router-agnostic with zero runtime deps.
 
 | Item            | Value                                                                        | Badge                                                                                                                                                                                                                                                                                                                                                                                              |
-| --------------- | ---------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| --------------- | ---------------------------------------------------------------------------- |----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | **GitHub repo** | [github.com/ameshkin/nextcrumbs](https://github.com/ameshkin/nextcrumbs)     | —                                                                                                                                                                                                                                                                                                                                                                                                  |
 | **CI**          | `.github/workflows/ci.yml`                                                   | [![CI — main](https://img.shields.io/github/actions/workflow/status/ameshkin/nextcrumbs/ci.yml?branch=main\&label=ci%20\(main\))](https://github.com/ameshkin/nextcrumbs/actions/workflows/ci.yml) [![CI — dev](https://img.shields.io/github/actions/workflow/status/ameshkin/nextcrumbs/ci.yml?branch=dev\&label=ci%20\(dev\))](https://github.com/ameshkin/nextcrumbs/actions/workflows/ci.yml) |
 | **npm package** | [@ameshkin/nextcrumbs](https://www.npmjs.com/package/@ameshkin/nextcrumbs)   | [![npm](https://img.shields.io/npm/v/@ameshkin/nextcrumbs.svg)](https://www.npmjs.com/package/@ameshkin/nextcrumbs)                                                                                                                                                                                                                                                                                |
-| **Install**     | `npm i @ameshkin/nextcrumbs`                                                 | [![install test](https://img.shields.io/github/actions/workflow/status/ameshkin/nextcrumbs/install.yml?branch=main\&label=install%20test)](https://github.com/ameshkin/nextcrumbs/actions/workflows/install.yml)                                                                                                                                                                                   |
+| **Install**     | `npm i @ameshkin/nextcrumbs`                                                 | [![install test](https://img.shields.io/github/actions/workflow/status/ameshkin/nextcrumbs/ci-main.yml?branch=main\&label=install%20test)](https://github.com/ameshkin/nextcrumbs/actions/workflows/ci-main.yml)                                                                                                                                                                                   |
 | **Peer deps**   | `@mui/material@^7`, `@mui/icons-material@^7`, `react@>=18`, `react-dom@>=18` | ![peer deps](https://img.shields.io/badge/peer_deps-MUI%207%20%7C%20Icons%207%20%7C%20React%2018-blue)                                                                                                                                                                                                                                                                                             |
 | **Types**       | TypeScript                                                                   | ![types](https://img.shields.io/badge/types-TypeScript-blue.svg)                                                                                                                                                                                                                                                                                                                                   |
 | **License**     | MIT                                                                          | [![license](https://img.shields.io/badge/license-MIT-black.svg)](LICENSE)                                                                                                                                                                                                                                                                                                                          |

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ameshkin/nextcrumbs",
-  "version": "0.1.0",
+  "version": "0.1.2",
   "description": "MUI 7 breadcrumbs with Next.js Link support, optional URL auto-generation, and SEO microdata.",
   "license": "MIT",
   "type": "module",
@@ -60,6 +60,6 @@
   "funding": { "type": "github", "url": "https://github.com/sponsors/ameshkin" },
   "engines": { "node": ">=20.19 <21 || >=22.12" },
   "packageManager": "npm@10.5.0",
-  "keywords": ["mui", "breadcrumbs", "nextjs", "react", "material-ui", "seo", "schema.org", "app router"],
+  "keywords": ["mui", "breadcrumbs", "nextjs", "react", "material-ui", "seo", "schema.org", "app router", "react router"],
   "publishConfig": { "access": "public" }
 }

src/Breadcrumbs.tsx

@@ -97,7 +97,7 @@ export default function Breadcrumbs({
   }) => (
     <Box component="span" sx={sxJoin(defaultContentSx, contentSx)} title={title || label}>
       {icon && <Box component="span" sx={iconSx}>{icon}</Box>}
-      <Box component="span" sx={labelSx}>{label}</Box>
+      <Typography component="span" sx={labelSx}>{label}</Typography>
     </Box>
   );
 

src/hooks/useReactRouterBreadcrumbs.ts

@@ -11,7 +11,61 @@
  */
 import * as React from "react"
 import type { ReactNode } from "react"
-import { useLocation } from "react-router-dom"
+
+// Lazy import pattern to avoid requiring react-router-dom when not used
+// We use a function that accesses the module at runtime to avoid
+// webpack trying to resolve it at build time when it's not installed
+let useLocationHook: (() => { pathname: string }) | null = null
+
+function getUseLocation(): () => { pathname: string } {
+  if (useLocationHook) return useLocationHook
+
+  // Access react-router-dom dynamically using a pattern that's harder
+  // for webpack to statically analyze. We construct the module name
+  // in a way that makes it less obvious to static analysis.
+  try {
+    // Split the module name to make it harder for webpack to detect
+    const parts = ["react", "router", "dom"]
+    const mod = parts.join("-")
+
+    // Try to access the module - this will work if it's available
+    // @ts-ignore - accessing optional dependency dynamically
+    let routerModule: any = null
+
+    // Try CommonJS require (for Node.js/CommonJS environments)
+    if (typeof require !== 'undefined') {
+      try {
+        routerModule = require(mod)
+      } catch {
+        // require failed, module not available
+      }
+    }
+
+    // For ESM environments, the module should be available through
+    // normal module resolution if installed. Since we can't use
+    // dynamic import() synchronously, we rely on the consuming
+    // project to have it available or configure webpack appropriately.
+    if (!routerModule) {
+      throw new Error("react-router-dom not available")
+    }
+
+    if (!routerModule.useLocation || typeof routerModule.useLocation !== 'function') {
+      throw new Error("useLocation not found in react-router-dom")
+    }
+
+    const hook = routerModule.useLocation
+    useLocationHook = hook
+    return hook
+  } catch (err: any) {
+    // If react-router-dom is not available, throw a helpful error
+    throw new Error(
+      "useReactRouterBreadcrumbs requires 'react-router-dom' to be installed. " +
+      "Please install it: npm install react-router-dom. " +
+      `If you're using Next.js and don't need react-router-dom, you can configure ` +
+      `webpack to ignore it or install it as a dev dependency.`
+    )
+  }
+}
 
 export type BreadcrumbItem = {
   label: string
@@ -30,6 +84,7 @@ export type ReactRouterBreadcrumbsOptions = {
 }
 
 export function useReactRouterBreadcrumbs(options?: ReactRouterBreadcrumbsOptions): BreadcrumbItem[] {
+  const useLocation = getUseLocation()
   const { pathname } = useLocation()
   const { rootLabel, basePath, decode = true, exclude = [], mapSegmentLabel } = options || {}