@mmstack/router-core/fesm2022/mmstack-router-core.mjs.map

Core utilities and Signal-based primitives for enhancing development with `@angular/router`. This library provides helpers for common routing tasks, reactive integration with router state, and intelligent module preloading.

{"version":3,"file":"mmstack-router-core.mjs","sources":["../../../../../packages/router/core/src/lib/breadcrumb/breadcrumb-config.ts","../../../../../packages/router/core/src/lib/url.ts","../../../../../packages/router/core/src/lib/util/leaf.store.ts","../../../../../packages/router/core/src/lib/breadcrumb/breadcrumb.ts","../../../../../packages/router/core/src/lib/breadcrumb/breadcrumb-store.ts","../../../../../packages/router/core/src/lib/util/create-route-predicate.ts","../../../../../packages/router/core/src/lib/util/find-path.ts","../../../../../packages/router/core/src/lib/util/snapshot-path.ts","../../../../../packages/router/core/src/lib/breadcrumb/breadcrumb-resolver.ts","../../../../../packages/router/core/src/lib/preloading/preload-requester.ts","../../../../../packages/router/core/src/lib/preloading/preload-strategy.ts","../../../../../packages/router/core/src/lib/link.ts","../../../../../packages/router/core/src/lib/query-param.ts","../../../../../packages/router/core/src/lib/title/title-config.ts","../../../../../packages/router/core/src/lib/title/title-store.ts","../../../../../packages/router/core/src/mmstack-router-core.ts"],"sourcesContent":["import { inject, InjectionToken } from '@angular/core';\nimport { ResolvedLeafRoute } from '../util';\n\n/**\n * A function that returns a custom label generation function.\n * The outer function is called in a root injection context\n * The returned function takes a `ResolvedLeafRoute` and produces a string label for the breadcrumb.\n * As the inner function is wrapped in a computed, changes to signals called within it will update the breadcrumb label reactively.\n */\ntype GenerateBreadcrumbFn = () => (leaf: ResolvedLeafRoute) => string;\n\n/**\n * Configuration options for the breadcrumb system.\n * Use `provideBreadcrumbConfig` to supply these options to your application.\n */\n\nexport type BreadcrumbConfig = {\n  /**\n   * Defines how breadcrumb labels are generated.\n   * - If set to `'manual'`, breadcrumbs will only be displayed if manually registered\n   * via `createBreadcrumb`. Automatic generation based on routes is disabled.\n   * - Alternatively provide a custom label generation function\n   * If left undefined, the system will automatically generate labels based on the route's title, data, or path.\n   * @see GenerateBreadcrumbFn\n   * @example\n   * ```typescript\n   * // For custom label generation:\n   * // const myCustomLabelGenerator = () => (leaf: ResolvedLeafRoute) => {\n   * //   return leaf.route.data?.['customTitle'] || leaf.route.routeConfig?.path || 'Default';\n   * // };\n   * //\n   * // config: { generation: myCustomLabelGenerator }\n   * ```\n   */\n  generation?: 'manual' | GenerateBreadcrumbFn;\n};\n\n/**\n * @internal\n */\nconst token = new InjectionToken<BreadcrumbConfig>('MMSTACK_BREADCRUMB_CONFIG');\n\n/**\n * Provides configuration for the breadcrumb system.\n * @param config - A partial `BreadcrumbConfig` object with the desired settings. *\n * @see BreadcrumbConfig\n * @example\n * ```typescript\n * // In your app.module.ts or a standalone component's providers:\n * // import { provideBreadcrumbConfig } from './breadcrumb.config'; // Adjust path\n * // import { ResolvedLeafRoute } from './breadcrumb.type'; // Adjust path\n *\n * // const customLabelStrategy: GenerateBreadcrumbFn = () => {\n * //   return (leaf: ResolvedLeafRoute): string => {\n * //     // Example: Prioritize a 'navTitle' data property\n * //     if (leaf.route.data?.['navTitle']) {\n * //       return leaf.route.data['navTitle'];\n * //     }\n * //     // Fallback to a default mechanism\n * //     return leaf.route.title || leaf.segment.resolved || 'Unnamed';\n * //   };\n * // };\n *\n * export const appConfig = [\n *  // ...rest\n *  provideBreadcrumbConfig({\n *   generation: customLabelStrategy, // or 'manual' to disable auto-generation\n *  }),\n * ]\n * ```\n */\nexport function provideBreadcrumbConfig(config: Partial<BreadcrumbConfig>) {\n  return {\n    provide: token,\n    useValue: {\n      ...config,\n    },\n  };\n}\n\n/**\n * @internal\n */\nexport function injectBreadcrumbConfig(): BreadcrumbConfig {\n  return (\n    inject(token, {\n      optional: true,\n    }) ?? {}\n  );\n}\n","import { inject, type Signal } from '@angular/core';\nimport { toSignal } from '@angular/core/rxjs-interop';\nimport {\n  type Event,\n  EventType,\n  type NavigationEnd,\n  Router,\n} from '@angular/router';\nimport { filter, map } from 'rxjs/operators';\n\n/**\n * Type guard to check if a Router Event is a NavigationEnd event.\n * @internal\n */\nfunction isNavigationEnd(e: Event): e is NavigationEnd {\n  return 'type' in e && e.type === EventType.NavigationEnd;\n}\n\n/**\n * Creates a Signal that tracks the current router URL.\n *\n * The signal emits the URL string reflecting the router state *after* redirects\n * have completed for each successful navigation. It initializes with the router's\n * current URL state.\n *\n * @returns {Signal<string>} A Signal emitting the `urlAfterRedirects` upon successful navigation.\n *\n * @example\n * ```ts\n * import { Component, effect } from '@angular/core';\n * import { url } from '@mmstack/router-core'; // Adjust import path\n *\n * @Component({\n * selector: 'app-root',\n * template: `Current URL: {{ currentUrl() }}`\n * })\n * export class AppComponent {\n * currentUrl = url();\n *\n * constructor() {\n * effect(() => {\n * console.log('Navigation ended. New URL:', this.currentUrl());\n * // e.g., track page view with analytics\n * });\n * }\n * }\n * ```\n */\nexport function url(): Signal<string> {\n  const router = inject(Router);\n\n  return toSignal(\n    router.events.pipe(\n      filter(isNavigationEnd),\n      map((e) => e.urlAfterRedirects),\n    ),\n    {\n      initialValue: router.url,\n    },\n  );\n}\n","import { computed, inject, Injectable, Signal } from '@angular/core';\nimport {\n  ActivatedRouteSnapshot,\n  Router,\n  RouterStateSnapshot,\n} from '@angular/router';\nimport { url } from '../url';\n\n/**\n * @internal\n */\nexport type ResolvedLeafRoute = {\n  route: ActivatedRouteSnapshot;\n  segment: {\n    path: string;\n    resolved: string;\n  };\n  path: string;\n  link: string;\n};\n\nfunction leafRoutes(): Signal<ResolvedLeafRoute[]> {\n  const router = inject(Router);\n\n  const getLeafRoutes = (\n    snapshot: RouterStateSnapshot,\n  ): ResolvedLeafRoute[] => {\n    const routes: ResolvedLeafRoute[] = [];\n    let route: ActivatedRouteSnapshot | null = snapshot.root;\n    const processed = new Set<string>();\n\n    while (route) {\n      const allSegments = route.pathFromRoot.flatMap(\n        (snap) => snap.routeConfig?.path ?? [],\n      );\n\n      const segments = allSegments.filter(Boolean);\n\n      const path = router.serializeUrl(router.parseUrl(segments.join('/')));\n\n      if (processed.has(path)) {\n        route = route.firstChild;\n        continue;\n      }\n      processed.add(path);\n\n      const parts = route.pathFromRoot\n        .flatMap((snap) => snap.url ?? [])\n        .map((u) => u.path)\n        .filter(Boolean);\n\n      const link = router.serializeUrl(router.parseUrl(parts.join('/')));\n\n      routes.push({\n        route,\n        segment: {\n          path: segments.at(-1) ?? '',\n          resolved: parts.at(-1) ?? '',\n        },\n        path,\n        link,\n      });\n      route = route.firstChild;\n    }\n\n    return routes;\n  };\n\n  const currentUrl = url();\n\n  const leafRoutes = computed(() => {\n    currentUrl();\n    return getLeafRoutes(router.routerState.snapshot);\n  });\n\n  return leafRoutes;\n}\n\n@Injectable({\n  providedIn: 'root',\n})\nexport class RouteLeafStore {\n  readonly leaves = leafRoutes();\n}\n\nexport function injectLeafRoutes() {\n  const store = inject(RouteLeafStore);\n  return store.leaves;\n}\n","import { type Signal } from '@angular/core';\n\n/**\n * Represents a single breadcrumb item within the navigation path.\n * All dynamic properties are represented as Angular Signals to enable reactivity.\n */\nexport type Breadcrumb = {\n  /**\n   * A unique identifier for the breadcrumb item. Generally the unresolved path for example `/posts/:id`.\n   * Useful for `@for` tracking in templates.\n   */\n  id: string;\n  /**\n   * The visible text for the breadcrumb item.\n   * Updated reactively as the url/link based on\n   * either a provided definition, or the current route.\n   */\n  label: Signal<string>;\n  /**\n   * An accessible label for the breadcrumb item.\n   * Defaults to the same value as `label` if not provided.\n   */\n  ariaLabel: Signal<string>;\n  /**\n   * The URL link for the breadcrumb item.\n   * Updates as the route changes.\n   */\n  link: Signal<string>;\n};\n\n/**\n * @internal\n */\nconst INTERNAL_BREADCRUMB_SYMBOL = Symbol.for('MMSTACK_INTERNAL_BREADCRUMB');\n\n/**\n * @internal\n */\nexport type InternalBreadcrumb = Breadcrumb & {\n  [INTERNAL_BREADCRUMB_SYMBOL]: {\n    active: Signal<boolean>;\n    registered: boolean;\n  };\n};\n\n/**\n * @internal\n */\nexport function getBreadcrumbInternals(breadcrumb: InternalBreadcrumb) {\n  return (breadcrumb as InternalBreadcrumb)[INTERNAL_BREADCRUMB_SYMBOL];\n}\n\n/**\n * @internal\n */\nexport function createInternalBreadcrumb(\n  bc: Breadcrumb,\n  active: Signal<boolean>,\n  registered = true,\n): InternalBreadcrumb {\n  return {\n    ...bc,\n    [INTERNAL_BREADCRUMB_SYMBOL]: {\n      active,\n      registered,\n    },\n  };\n}\n\n/**\n * @internal\n */\nexport function isInternalBreadcrumb(\n  breadcrumb: Breadcrumb | InternalBreadcrumb,\n): breadcrumb is InternalBreadcrumb {\n  return !!(breadcrumb as InternalBreadcrumb)[INTERNAL_BREADCRUMB_SYMBOL];\n}\n","import { computed, inject, Injectable, Signal } from '@angular/core';\nimport { mapArray, mutable } from '@mmstack/primitives';\nimport { injectLeafRoutes, ResolvedLeafRoute } from '../util/leaf.store';\nimport {\n  Breadcrumb,\n  createInternalBreadcrumb,\n  getBreadcrumbInternals,\n  InternalBreadcrumb,\n  isInternalBreadcrumb,\n} from './breadcrumb';\nimport { injectBreadcrumbConfig } from './breadcrumb-config';\n\nfunction uppercaseFirst(str: string): string {\n  const lcs = str.toLowerCase();\n  return lcs.charAt(0).toUpperCase() + lcs.slice(1);\n}\n\nfunction removeMatrixAndQueryParams(path: string): string {\n  const [cleanPath] = path.split(';');\n  return cleanPath.split('?')[0];\n}\n\nfunction parsePathSegment(pathSegment: string): string {\n  return pathSegment\n    .split('/')\n    .flatMap((part) => part.split('.'))\n    .flatMap((part) => part.split('-'))\n    .map((part) => uppercaseFirst(removeMatrixAndQueryParams(part)))\n    .join(' ');\n}\n\nfunction generateLabel(leaf: ResolvedLeafRoute): string {\n  const title = leaf.route.title ?? leaf.route.data?.['title'];\n\n  if (title && typeof title === 'string') return title;\n  if (leaf.segment.path.includes(':')) return leaf.segment.resolved;\n\n  return parsePathSegment(leaf.segment.path);\n}\n\nfunction autoGenerateBreadcrumb(\n  id: string,\n  leaf: Signal<ResolvedLeafRoute>,\n  autoGenerateFn: Signal<(leaf: ResolvedLeafRoute) => string>,\n): Breadcrumb {\n  const label = computed(() => autoGenerateFn()(leaf()));\n\n  return createInternalBreadcrumb(\n    {\n      id,\n      label,\n      ariaLabel: label,\n      link: computed(() => leaf().link),\n    },\n    computed(\n      () =>\n        leaf().route.data?.['skipBreadcrumb'] !== true &&\n        id !== '' &&\n        id !== '/' &&\n        leaf().segment.path !== '' &&\n        leaf().segment.path !== '/' &&\n        !leaf().segment.path.endsWith('/') &&\n        !!label(),\n    ),\n  );\n}\n\nfunction injectGenerateLabelFn() {\n  const { generation } = injectBreadcrumbConfig();\n\n  if (typeof generation !== 'function') return computed(() => generateLabel);\n\n  const provided = generation();\n  return computed(() => provided);\n}\n\nfunction injectIsManual() {\n  return injectBreadcrumbConfig().generation === 'manual';\n}\n\nfunction exposeActiveSignal(\n  crumbSignal: Signal<Breadcrumb>,\n  manual: boolean,\n): Signal<Breadcrumb> & {\n  active: Signal<boolean>;\n} {\n  const active = manual\n    ? computed(() => {\n        const crumb = crumbSignal();\n\n        return (\n          isInternalBreadcrumb(crumb) &&\n          getBreadcrumbInternals(crumb).registered &&\n          getBreadcrumbInternals(crumb).active()\n        );\n      })\n    : computed(() => {\n        const crumb = crumbSignal();\n        if (!isInternalBreadcrumb(crumb)) return true;\n        return getBreadcrumbInternals(crumb).active();\n      });\n\n  const sig = crumbSignal as Signal<Breadcrumb> & {\n    active: Signal<boolean>;\n  };\n\n  sig.active = active;\n\n  return sig;\n}\n\n@Injectable({\n  providedIn: 'root',\n})\nexport class BreadcrumbStore {\n  private readonly map = mutable<Map<string, InternalBreadcrumb>>(new Map());\n  private readonly isManual = injectIsManual();\n  private readonly autoGenerateLabelFn = injectGenerateLabelFn();\n  private readonly leafRoutes = injectLeafRoutes();\n\n  private readonly all = mapArray(\n    this.leafRoutes,\n    (leaf) => {\n      const stableId = computed(() => leaf().path);\n\n      return exposeActiveSignal(\n        computed(\n          () => {\n            const id = stableId();\n\n            const found = this.map().get(id);\n\n            if (!found)\n              return autoGenerateBreadcrumb(id, leaf, this.autoGenerateLabelFn);\n\n            if (!id.includes(':')) return found;\n\n            return {\n              ...found,\n              link: computed(() => leaf().link),\n            };\n          },\n          {\n            equal: (a, b) => a.id === b.id,\n          },\n        ),\n        this.isManual,\n      );\n    },\n    {\n      equal: (a, b) => a.link === b.link,\n    },\n  );\n\n  private readonly crumbs = computed((): Signal<Breadcrumb>[] =>\n    this.all().filter((c) => c.active()),\n  );\n\n  readonly unwrapped = computed(() => this.crumbs().map((c) => c()));\n\n  register(breadcrumb: InternalBreadcrumb) {\n    this.map.inline((m) => m.set(breadcrumb.id, breadcrumb));\n  }\n}\n\n/**\n * Injects and provides access to a reactive list of breadcrumbs.\n *\n * The breadcrumbs are ordered and reflect the current active navigation path.\n * @see Breadcrumb\n * @returns `Signal<Breadcrumb[]>`\n *\n * @example\n * ```typescript\n * @Component({\n * selector: 'app-breadcrumbs',\n * template: `\n *  <nav aria-label=\"breadcrumb\">\n *    <ol>\n *      @for (crumb of breadcrumbs(); track crumb.id) {\n *        <li>\n *          <a [href]=\"crumb.link()\" [attr.aria-label]=\"crumb.ariaLabel()\">{{ crumb.label() }}</a>\n *        </li>\n *      }\n *    </ol>\n *  </nav>\n * `\n * })\n * export class MyBreadcrumbsComponent {\n *  breadcrumbs = injectBreadcrumbs();\n * }\n * ```\n */\nexport function injectBreadcrumbs() {\n  const store = inject(BreadcrumbStore);\n  return store.unwrapped;\n}\n","function parsePathSegment(segmentString: string): {\n  pathPart: string;\n  matrixParams: Record<string, string>;\n} {\n  const parts = segmentString.split(';');\n  const pathPart = parts[0];\n  const matrixParams: Record<string, string> = {};\n  for (let i = 1; i < parts.length; i++) {\n    const [key, value = 'true'] = parts[i].split('=');\n    if (key) {\n      matrixParams[key] = value;\n    }\n  }\n  return { pathPart, matrixParams };\n}\n\nfunction createBasePredicate(path: string): (path: string) => boolean {\n  const partPredicates = path\n    .split('/')\n    .filter((part) => !!part.trim())\n    .map((configSegmentString) => {\n      const { pathPart: configPathPart, matrixParams: configMatrixParams } =\n        parsePathSegment(configSegmentString);\n\n      let singlePathPartPredicate: (linkSegmentPathPart: string) => boolean;\n      if (configPathPart.startsWith(':')) {\n        singlePathPartPredicate = () => true;\n      } else {\n        singlePathPartPredicate = (linkSegmentPathPart: string) =>\n          linkSegmentPathPart === configPathPart;\n      }\n\n      const configSegmentHasMatrixParams =\n        Object.keys(configMatrixParams).length > 0;\n\n      return (linkSegmentString: string) => {\n        const { pathPart: linkPathPart, matrixParams: linkMatrixParams } =\n          parsePathSegment(linkSegmentString);\n\n        if (!singlePathPartPredicate(linkPathPart)) {\n          return false;\n        }\n\n        if (!configSegmentHasMatrixParams) {\n          return true;\n        }\n\n        return Object.entries(configMatrixParams).every(\n          ([key, value]) =>\n            Object.prototype.hasOwnProperty.call(linkMatrixParams, key) &&\n            linkMatrixParams[key] === value,\n        );\n      };\n    });\n\n  return (path: string) => {\n    const linkPathOnly = path.split(/[?#]/).at(0) ?? '';\n    if (!linkPathOnly && partPredicates.length > 0) return false;\n    if (!linkPathOnly && partPredicates.length === 0) return true;\n\n    const parts = linkPathOnly.split('/').filter((part) => !!part.trim());\n    if (parts.length < partPredicates.length) return false;\n\n    return parts.every((seg, idx) => {\n      const pred = partPredicates.at(idx);\n      if (!pred) return true;\n      return pred(seg);\n    });\n  };\n}\n\ntype ParsedSegment = {\n  pathPart: string;\n  matrixParams: Record<string, string>;\n};\n\nfunction singleSegmentMatches(\n  configSegment: ParsedSegment,\n  linkSegment: ParsedSegment,\n): boolean {\n  if (configSegment.pathPart === ':') {\n    return true;\n  } else if (configSegment.pathPart !== linkSegment.pathPart) {\n    return false;\n  }\n\n  const configMatrix = configSegment.matrixParams;\n  const linkMatrix = linkSegment.matrixParams;\n  for (const key in configMatrix) {\n    if (\n      !Object.prototype.hasOwnProperty.call(linkMatrix, key) ||\n      linkMatrix[key] !== configMatrix[key]\n    ) {\n      return false;\n    }\n  }\n  return true;\n}\n\nfunction matchSegmentsRecursive(\n  configSegments: ParsedSegment[],\n  linkSegments: ParsedSegment[],\n  configIdx: number,\n  linkIdx: number,\n): boolean {\n  if (configIdx === configSegments.length) {\n    return linkIdx === linkSegments.length;\n  }\n\n  if (linkIdx === linkSegments.length) {\n    for (let i = configIdx; i < configSegments.length; i++) {\n      if (configSegments[i].pathPart !== '**') {\n        return false;\n      }\n    }\n    return true;\n  }\n\n  const currentConfigSegment = configSegments[configIdx];\n\n  if (currentConfigSegment.pathPart === '**') {\n    if (\n      matchSegmentsRecursive(\n        configSegments,\n        linkSegments,\n        configIdx + 1,\n        linkIdx,\n      )\n    ) {\n      return true;\n    }\n\n    if (linkIdx < linkSegments.length) {\n      if (\n        matchSegmentsRecursive(\n          configSegments,\n          linkSegments,\n          configIdx,\n          linkIdx + 1,\n        )\n      ) {\n        return true;\n      }\n    }\n\n    return false;\n  } else {\n    if (\n      linkIdx < linkSegments.length &&\n      singleSegmentMatches(currentConfigSegment, linkSegments[linkIdx])\n    ) {\n      return matchSegmentsRecursive(\n        configSegments,\n        linkSegments,\n        configIdx + 1,\n        linkIdx + 1,\n      );\n    }\n\n    return false;\n  }\n}\n\nfunction createWildcardPredicate(path: string): (linkPath: string) => boolean {\n  const configSegments = path\n    .split('/')\n    .filter((p) => !!p.trim())\n    .map((segment) => parsePathSegment(segment));\n\n  return (linkPath: string): boolean => {\n    const linkPathOnly = linkPath.split(/[?#]/).at(0) ?? '';\n    const linkSegments = linkPathOnly\n      .split('/')\n      .filter((p) => !!p.trim())\n      .map((segment) => parsePathSegment(segment));\n\n    return matchSegmentsRecursive(configSegments, linkSegments, 0, 0);\n  };\n}\n\nexport function createRoutePredicate(\n  path: string,\n): (linkPath: string) => boolean {\n  return path.includes('**')\n    ? createWildcardPredicate(path)\n    : createBasePredicate(path);\n}\n","// The following functions are adapted from ngx-quicklink,\n// (https://github.com/mgechev/ngx-quicklink)\n// Copyright (c) Minko Gechev and contributors, licensed under the MIT License.\n\nimport { PRIMARY_OUTLET, Route } from '@angular/router';\n\nfunction isPrimaryRoute(route: Route): boolean {\n  return route.outlet === PRIMARY_OUTLET || !route.outlet;\n}\n\nexport const findPath = (config: Route[], route: Route): string => {\n  const configQueue = config.slice();\n  const parent = new Map<Route, Route>();\n  const visited = new Set<Route>();\n\n  while (configQueue.length) {\n    const el = configQueue.shift();\n    if (!el) {\n      continue;\n    }\n\n    visited.add(el);\n\n    if (el === route) {\n      break;\n    }\n\n    (el.children || []).forEach((childRoute: Route) => {\n      if (!visited.has(childRoute)) {\n        parent.set(childRoute, el);\n        configQueue.push(childRoute);\n      }\n    });\n\n    const lazyRoutes = (el as any)._loadedRoutes || [];\n    if (Array.isArray(lazyRoutes)) {\n      lazyRoutes.forEach((lazyRoute: Route) => {\n        if (lazyRoute && !visited.has(lazyRoute)) {\n          parent.set(lazyRoute, el);\n          configQueue.push(lazyRoute);\n        }\n      });\n    }\n  }\n\n  let path = '';\n  let currentRoute: Route | undefined = route;\n\n  while (currentRoute) {\n    const currentPath = currentRoute.path || '';\n    if (isPrimaryRoute(currentRoute)) {\n      path = `/${currentPath}${path}`;\n    } else {\n      path = `/(${currentRoute.outlet}:${currentPath})${path}`;\n    }\n    currentRoute = parent.get(currentRoute);\n  }\n\n  let normalizedPath = path.replaceAll(/\\/+/g, '/');\n\n  if (normalizedPath !== '/' && normalizedPath.endsWith('/')) {\n    normalizedPath = normalizedPath.slice(0, -1);\n  }\n\n  return normalizedPath;\n};\n","import { inject } from '@angular/core';\nimport { ActivatedRouteSnapshot, Router } from '@angular/router';\n\nexport function injectSnapshotPathResolver() {\n  const router = inject(Router);\n\n  return (route: ActivatedRouteSnapshot) => {\n    const segments = route.pathFromRoot.flatMap(\n      (snap) => snap.routeConfig?.path ?? [],\n    );\n\n    const joinedSegments = segments.filter(Boolean).join('/');\n\n    return router.serializeUrl(router.parseUrl(joinedSegments));\n  };\n}\n","import { computed, inject } from '@angular/core';\nimport {\n  createUrlTreeFromSnapshot,\n  Router,\n  type ResolveFn,\n} from '@angular/router';\nimport { BreadcrumbStore } from './breadcrumb-store';\n\n/**\n * Options for defining a breadcrumb.\n *\n */\ntype CreateBreadcrumbOptions = {\n  /**\n   * The visible text for the breadcrumb.\n   * Can be a static string or a function for dynamic labels.\n   */\n  label: string | (() => string);\n  /**\n   * An accessible label for the breadcrumb item.\n   * Defaults to the value of `label` if not provided.\n   * Can be a static string or a function returning a string for dynamic ARIA labels.\n   */\n  ariaLabel?: string | (() => string);\n  /**\n   * If `true`, the route resolver will wait until the `label` signal has a value before `resolving`\n   */\n  awaitValue?: boolean;\n};\n\nimport { until } from '@mmstack/primitives';\nimport { injectSnapshotPathResolver } from '../util';\nimport { Breadcrumb, createInternalBreadcrumb } from './breadcrumb';\n\n/**\n * Creates and registers a breadcrumb for a specific route.\n * This function is designed to be used as an Angular Route `ResolveFn`.\n * It handles the registration of the breadcrumb with the `BreadcrumbStore`\n * and ensures automatic deregistration when the route is destroyed.\n *\n * @param factory A function that returns a `CreateBreadcrumbOptions` object.\n * @see CreateBreadcrumbOptions\n *\n * @example\n * ```typescript\n * export const appRoutes: Routes = [\n *   {\n *     path: 'home',\n *     component: HomeComponent,\n *     resolve: {\n *       breadcrumb: createBreadcrumb(() => ({\n *         label: 'Home',\n *       });\n *     },\n *     path: 'users/:userId',\n *     component: UserProfileComponent,\n *     resolve: {\n *       breadcrumb: createBreadcrumb(() => {\n *         const userStore = inject(UserStore);\n *         return {\n *            label: () => userStore.user().name ?? 'Loading...\n *        };\n *      })\n *     },\n *   }\n * ];\n * ```\n */\nexport function createBreadcrumb(\n  factory: () => CreateBreadcrumbOptions,\n): ResolveFn<void> {\n  return async (route) => {\n    const router = inject(Router);\n    const store = inject(BreadcrumbStore);\n    const resolver = injectSnapshotPathResolver();\n\n    const fp = resolver(route);\n\n    const tree = createUrlTreeFromSnapshot(\n      route,\n      [],\n      route.queryParams,\n      route.fragment,\n    );\n\n    const provided = factory();\n\n    const link = computed(() => router.serializeUrl(tree));\n\n    const { label, ariaLabel = label } = provided;\n\n    const bc: Breadcrumb = {\n      id: fp,\n      ariaLabel:\n        typeof ariaLabel === 'string'\n          ? computed(() => ariaLabel)\n          : computed(ariaLabel),\n      label:\n        typeof label === 'string' ? computed(() => label) : computed(label),\n      link,\n    };\n\n    store.register(\n      createInternalBreadcrumb(\n        bc,\n        computed(() => route.data?.['skipBreadcrumb'] !== true),\n      ),\n    );\n\n    if (provided.awaitValue) await until(bc.label, (v) => !!v);\n\n    return Promise.resolve();\n  };\n}\n","import { Injectable } from '@angular/core';\nimport { Subject } from 'rxjs';\n\n@Injectable({ providedIn: 'root' })\nexport class PreloadRequester {\n  private readonly preloadOnDemand$ = new Subject<string>();\n  readonly preloadRequested$ = this.preloadOnDemand$.asObservable();\n\n  startPreload(routePath: string) {\n    this.preloadOnDemand$.next(routePath);\n  }\n}\n","import { inject, Injectable } from '@angular/core';\nimport { PreloadingStrategy, type Route, Router } from '@angular/router';\nimport { EMPTY, filter, finalize, Observable, switchMap, take } from 'rxjs';\nimport { createRoutePredicate, findPath } from '../util';\nimport { PreloadRequester } from './preload-requester';\n\nfunction hasSlowConnection() {\n  if (\n    globalThis.window &&\n    'navigator' in globalThis.window &&\n    'connection' in globalThis.window.navigator &&\n    typeof globalThis.window.navigator.connection === 'object' &&\n    !!globalThis.window.navigator.connection\n  ) {\n    const is2g =\n      'effectiveType' in globalThis.window.navigator.connection &&\n      typeof globalThis.window.navigator.connection.effectiveType ===\n        'string' &&\n      globalThis.window.navigator.connection.effectiveType.endsWith('2g');\n    if (is2g) return true;\n    if (\n      'saveData' in globalThis.window.navigator.connection &&\n      typeof globalThis.window.navigator.connection.saveData === 'boolean' &&\n      globalThis.window.navigator.connection.saveData\n    )\n      return true;\n  }\n\n  return false;\n}\n\nfunction noPreload(route: Route) {\n  return route.data && route.data['preload'] === false;\n}\n\n@Injectable({\n  providedIn: 'root',\n})\nexport class PreloadStrategy implements PreloadingStrategy {\n  private readonly loading = new Set<string>();\n  private readonly router = inject(Router);\n  private readonly req = inject(PreloadRequester);\n\n  preload(route: Route, load: () => Observable<any>): Observable<any> {\n    if (noPreload(route) || hasSlowConnection()) return EMPTY;\n\n    const fp = findPath(this.router.config, route);\n\n    if (this.loading.has(fp)) return EMPTY;\n\n    const predicate = createRoutePredicate(fp);\n    return this.req.preloadRequested$.pipe(\n      filter((path) => path === fp || predicate(path)),\n      take(1),\n      switchMap(() => load()),\n      finalize(() => this.loading.delete(fp)),\n    );\n  }\n}\n","import {\n  booleanAttribute,\n  computed,\n  Directive,\n  effect,\n  HostListener,\n  inject,\n  InjectionToken,\n  input,\n  output,\n  Provider,\n  untracked,\n} from '@angular/core';\nimport {\n  type ActivatedRoute,\n  type Params,\n  Router,\n  RouterLink,\n  RouterLinkWithHref,\n  UrlTree,\n} from '@angular/router';\nimport { elementVisibility } from '@mmstack/primitives';\nimport { PreloadRequester } from './preloading';\n\nfunction inputToUrlTree(\n  router: Router,\n  link: string | any[] | UrlTree | null,\n  relativeTo?: ActivatedRoute,\n  queryParams?: Params,\n  fragment?: string,\n  queryParamsHandling?: 'merge' | 'preserve' | '',\n  routerLinkUrlTree?: UrlTree | null,\n): UrlTree | null {\n  if (!link) return null;\n  if (routerLinkUrlTree) return routerLinkUrlTree;\n\n  if (link instanceof UrlTree) return link;\n\n  const arr = Array.isArray(link) ? link : [link];\n\n  return router.createUrlTree(arr, {\n    relativeTo,\n    queryParams,\n    fragment,\n    queryParamsHandling,\n  });\n}\n\nfunction treeToSerializedUrl(\n  router: Router,\n  urlTree: UrlTree | null,\n): string | null {\n  if (!urlTree) return null;\n  return router.serializeUrl(urlTree);\n}\n\nexport function injectTriggerPreload() {\n  const req = inject(PreloadRequester);\n  const router = inject(Router);\n\n  return (\n    link: string | any[] | UrlTree | null,\n    relativeTo?: ActivatedRoute,\n    queryParams?: Params,\n    fragment?: string,\n    queryParamsHandling?: 'merge' | 'preserve' | '',\n  ) => {\n    const urlTree = inputToUrlTree(\n      router,\n      link,\n      relativeTo,\n      queryParams,\n      fragment,\n      queryParamsHandling,\n    );\n    const fullPath = treeToSerializedUrl(router, urlTree);\n    if (!fullPath) return;\n\n    req.startPreload(fullPath);\n  };\n}\n\n/**\n * Configuration for the `mmLink` directive.\n */\ntype MMLinkConfig = {\n  /**\n   * The default preload behavior for links.\n   * Can be 'hover', 'visible', or null (no preloading).\n   * @default 'hover'\n   */\n  preloadOn: 'hover' | 'visible' | null;\n  /**\n   * Whether to use mouse down events for preloading.\n   * @default false\n   */\n  useMouseDown: boolean;\n};\n\nconst configToken = new InjectionToken<MMLinkConfig>('MMSTACK_LINK_CONFIG');\n\nexport function provideMMLinkDefaultConfig(\n  config: Partial<MMLinkConfig>,\n): Provider {\n  const cfg: MMLinkConfig = {\n    preloadOn: 'hover',\n    useMouseDown: false,\n    ...config,\n  };\n\n  return {\n    provide: configToken,\n    useValue: cfg,\n  };\n}\n\nfunction injectConfig() {\n  const cfg = inject(configToken, { optional: true });\n  return {\n    preloadOn: 'hover' as const,\n    useMouseDown: false,\n    ...cfg,\n  };\n}\n\n@Directive({\n  selector: '[mmLink]',\n  exportAs: 'mmLink',\n  host: {\n    '(mouseenter)': 'onHover()',\n  },\n  hostDirectives: [\n    {\n      directive: RouterLink,\n      inputs: [\n        'routerLink: mmLink',\n        'target',\n        'queryParams',\n        'fragment',\n        'queryParamsHandling',\n        'state',\n        'relativeTo',\n        'skipLocationChange',\n        'replaceUrl',\n      ],\n    },\n  ],\n})\nexport class Link {\n  private readonly routerLink =\n    inject(RouterLink, {\n      self: true,\n      optional: true,\n    }) ?? inject(RouterLinkWithHref, { self: true, optional: true });\n\n  private readonly req = inject(PreloadRequester);\n  private readonly router = inject(Router);\n\n  readonly target = input<string>();\n  readonly queryParams = input<Params>();\n  readonly fragment = input<string>();\n  readonly queryParamsHandling = input<'merge' | 'preserve' | ''>();\n  readonly state = input<Record<string, any>>();\n  readonly info = input<unknown>();\n  readonly relativeTo = input<ActivatedRoute>();\n  readonly skipLocationChange = input(false, { transform: booleanAttribute });\n  readonly replaceUrl = input(false, { transform: booleanAttribute });\n  readonly mmLink = input<string | any[] | UrlTree | null>(null);\n  readonly preloadOn = input<'hover' | 'visible' | null>(\n    injectConfig().preloadOn,\n  );\n  readonly useMouseDown = input(injectConfig().useMouseDown, {\n    transform: booleanAttribute,\n  });\n  readonly beforeNavigate = input<() => void>();\n\n  readonly preloading = output<void>();\n\n  private readonly urlTree = computed(() => {\n    return inputToUrlTree(\n      this.router,\n      this.mmLink(),\n      this.relativeTo(),\n      this.queryParams(),\n      this.fragment(),\n      this.queryParamsHandling(),\n      this.routerLink?.urlTree,\n    );\n  });\n\n  private readonly fullPath = computed(() => {\n    return treeToSerializedUrl(this.router, this.urlTree());\n  });\n\n  onHover() {\n    if (untracked(this.preloadOn) !== 'hover') return;\n    this.requestPreload();\n  }\n\n  @HostListener('mousedown', [\n    '$event.button',\n    '$event.ctrlKey',\n    '$event.shiftKey',\n    '$event.altKey',\n    '$event.metaKey',\n  ])\n  onMouseDown(\n    button: number,\n    ctrlKey: boolean,\n    shiftKey: boolean,\n    altKey: boolean,\n    metaKey: boolean,\n  ) {\n    if (!untracked(this.useMouseDown)) return;\n    return this.trigger(button, ctrlKey, shiftKey, altKey, metaKey);\n  }\n\n  @HostListener('click', [\n    '$event.button',\n    '$event.ctrlKey',\n    '$event.shiftKey',\n    '$event.altKey',\n    '$event.metaKey',\n  ])\n  onClick(\n    button: number,\n    ctrlKey: boolean,\n    shiftKey: boolean,\n    altKey: boolean,\n    metaKey: boolean,\n  ) {\n    if (untracked(this.useMouseDown)) return;\n    return this.trigger(button, ctrlKey, shiftKey, altKey, metaKey);\n  }\n\n  constructor() {\n    const intersection = elementVisibility();\n\n    effect(() => {\n      if (this.preloadOn() !== 'visible') return;\n      if (intersection.visible()) this.requestPreload();\n    });\n  }\n\n  private requestPreload() {\n    const fp = untracked(this.fullPath);\n    if (!this.routerLink || !fp) return;\n    this.req.startPreload(fp);\n    this.preloading.emit();\n  }\n\n  private trigger(\n    button: number,\n    ctrlKey: boolean,\n    shiftKey: boolean,\n    altKey: boolean,\n    metaKey: boolean,\n  ) {\n    untracked(this.beforeNavigate)?.();\n    return this.routerLink?.onClick(button, ctrlKey, shiftKey, altKey, metaKey);\n  }\n}\n","import {\n  computed,\n  inject,\n  isSignal,\n  untracked,\n  type WritableSignal,\n} from '@angular/core';\nimport { toSignal } from '@angular/core/rxjs-interop';\nimport { ActivatedRoute, Router } from '@angular/router';\nimport { toWritable } from '@mmstack/primitives';\n\n/**\n * Creates a WritableSignal that synchronizes with a specific URL query parameter,\n * enabling two-way binding between the signal's state and the URL.\n *\n * Reading the signal provides the current value of the query parameter (or null if absent).\n * Setting the signal updates the URL query parameter using `Router.navigate`, triggering\n * navigation and causing the signal to update reactively if the navigation is successful.\n *\n * @param key The key of the query parameter to synchronize with.\n * Can be a static string (e.g., `'search'`) or a function/signal returning a string\n * for dynamic keys (e.g., `() => this.userId() + '_filter'` or `computed(() => this.category() + '_sort')`).\n * The signal will reactively update if the key returned by the function/signal changes.\n * @returns {WritableSignal<string | null>} A signal representing the query parameter's value.\n * - Reading returns the current value string, or `null` if the parameter is absent in the URL.\n * - Setting the signal to a string updates the query parameter in the URL (e.g., `signal.set('value')` results in `?key=value`).\n * - Setting the signal to `null` removes the query parameter from the URL (e.g., `signal.set(null)` results in `?otherParam=...`).\n * - Automatically reflects changes if the query parameters update due to external navigation.\n * @remarks\n * - Requires Angular's `ActivatedRoute` and `Router` to be available in the injection context.\n * - Uses `Router.navigate` with `queryParamsHandling: 'merge'` to preserve other existing query parameters during updates.\n * - Handles dynamic keys reactively. If the result of the `key` function/signal changes, the signal will start reflecting the value of the *new* query parameter key.\n * - During Server-Side Rendering (SSR), it reads the initial value from the route snapshot. Write operations (`set`) might have limited or no effect on the server depending on the platform configuration.\n *\n * @example\n * ```ts\n * import { Component, computed, effect, signal } from '@angular/core';\n * import { queryParam } from '@mmstack/router-core'; // Adjust import path as needed\n * // import { FormsModule } from '@angular/forms'; // If using ngModel\n *\n * @Component({\n * selector: 'app-product-list',\n * standalone: true,\n * // imports: [FormsModule], // If using ngModel\n * template: `\n * <div>\n * Sort By:\n * <select [value]=\"sortSignal() ?? ''\" (change)=\"sortSignal.set($any($event.target).value || null)\">\n * <option value=\"\">Default</option>\n * <option value=\"price_asc\">Price Asc</option>\n * <option value=\"price_desc\">Price Desc</option>\n * <option value=\"name\">Name</option>\n * </select>\n * <button (click)=\"sortSignal.set(null)\" [disabled]=\"!sortSignal()\">Clear Sort</button>\n * </div>\n * <div>\n * Page:\n * <input type=\"number\" min=\"1\" [value]=\"pageSignal() ?? '1'\" #p (input)=\"setPage(p.value)\"/>\n * </div>\n * * `\n * })\n * export class ProductListComponent {\n * // Two-way bind the 'sort' query parameter (?sort=...)\n * // Defaults to null if param is missing\n * sortSignal = queryParam('sort');\n *\n * // Example with a different type (needs serialization or separate logic)\n * // For simplicity, we treat page as string | null here\n * pageSignal = queryParam('page');\n *\n * constructor() {\n * effect(() => {\n * const currentSort = this.sortSignal();\n * const currentPage = this.pageSignal(); // Read as string | null\n * console.log('Sort/Page changed, reloading products for:', { sort: currentSort, page: currentPage });\n * // --- Fetch data based on currentSort and currentPage ---\n * });\n * }\n *\n * setPage(value: string): void {\n * const pageNum = parseInt(value, 10);\n * // Set to null if page is 1 (to remove param), otherwise set string value\n * this.pageSignal.set(isNaN(pageNum) || pageNum <= 1 ? null : pageNum.toString());\n * }\n * }\n * ```\n */\nexport function queryParam(\n  key: string | (() => string),\n  route = inject(ActivatedRoute),\n): WritableSignal<string | null> {\n  const router = inject(Router);\n\n  const keySignal =\n    typeof key === 'string'\n      ? computed(() => key)\n      : isSignal(key)\n        ? key\n        : computed(key);\n\n  const queryParamMap = toSignal(route.queryParamMap, {\n    initialValue: route.snapshot.queryParamMap,\n  });\n\n  const queryParams = toSignal(route.queryParams, {\n    initialValue: route.snapshot.queryParams,\n  });\n\n  const queryParam = computed(() => queryParamMap().get(keySignal()));\n\n  const set = (newValue: string | null) => {\n    const next = {\n      ...untracked(queryParams),\n    };\n    const key = untracked(keySignal);\n\n    if (newValue === null) {\n      delete next[key];\n    } else {\n      next[key] = newValue;\n    }\n\n    router.navigate([], {\n      relativeTo: route,\n      queryParams: next,\n      queryParamsHandling: 'merge',\n    });\n  };\n\n  return toWritable(queryParam, set);\n}\n","import { inject, InjectionToken, Provider } from '@angular/core';\n\n/**\n * Title configuration interface.\n * Defines how createTitle should behave\n * @see {createTitle}\n */\nexport type TitleConfig = {\n  /**\n   * The title to be used when no title is set.\n   * If not provided it defaults to an empty string\n   * @default ''\n   */\n  prefix?: string | ((title: string) => string);\n  /**\n   * if false, the title will change to the url, otherwise default to true as that is standard behavior\n   * @default true\n   */\n  keepLastKnownTitle?: boolean;\n};\n\n/**\n * @internal\n */\nexport type InternalTitleConfig = {\n  parser: (title: string) => string;\n  keepLastKnown: boolean;\n};\n\nconst token = new InjectionToken<InternalTitleConfig>('MMSTACK_TITLE_CONFIG');\n\n/**\n * used to provide the title configuration, will not be applied unless a `createTitle` resolver is used\n */\nexport function provideTitleConfig(config?: TitleConfig): Provider {\n  const prefix = config?.prefix ?? '';\n\n  const prefixFn =\n    typeof prefix === 'function'\n      ? prefix\n      : (title: string) => `${prefix}${title}`;\n\n  return {\n    provide: token,\n    useValue: {\n      parser: prefixFn,\n      keepLastKnown: config?.keepLastKnownTitle ?? true,\n    },\n  };\n}\n\nexport function injectTitleConfig(): InternalTitleConfig {\n  return inject(token);\n}\n","import {\n  computed,\n  effect,\n  inject,\n  Injectable,\n  linkedSignal,\n  Signal,\n  untracked,\n} from '@angular/core';\nimport { Title } from '@angular/platform-browser';\nimport { ResolveFn } from '@angular/router';\nimport { mutable, until } from '@mmstack/primitives';\nimport { injectLeafRoutes, injectSnapshotPathResolver } from '../util';\nimport { injectTitleConfig } from './title-config';\n\n@Injectable({\n  providedIn: 'root',\n})\nexport class TitleStore {\n  private readonly title = inject(Title);\n  private readonly map = mutable<Map<string, Signal<string>>>(new Map());\n  private readonly leafRoutes = injectLeafRoutes();\n\n  constructor() {\n    const reverseLeaves = computed(() => this.leafRoutes().toReversed());\n\n    const currentResolvedTitles = computed(() => {\n      const map = this.map();\n      return reverseLeaves()\n        .map((leaf) => map.get(leaf.path)?.() ?? leaf.route.title)\n        .filter((v): v is string => !!v);\n    });\n\n    const currentTitle = computed(() => currentResolvedTitles().at(0) ?? '');\n\n    const heldTitle = injectTitleConfig().keepLastKnown\n      ? linkedSignal<string, string>({\n          source: () => currentTitle(),\n          computation: (value, prev) => {\n            if (!value) return prev?.value ?? '';\n            return value;\n          },\n        })\n      : currentTitle;\n\n    effect(() => {\n      this.title.setTitle(heldTitle());\n    });\n  }\n\n  register(id: string, titleFn: Signal<string>) {\n    this.map.inline((m) => m.set(id, titleFn));\n  }\n}\n\n/**\n *\n * Creates a title resolver function that can be used in Angular's router.\n *\n * @param fn\n * A function that returns a string or a Signal<string> representing the title.\n * @param awaitValue\n * If `true`, the resolver will wait until the title signal has a value before resolving.\n * Defaults to `false`.\n */\nexport function createTitle(\n  fn: () => string | (() => string),\n  awaitValue = false,\n): ResolveFn<string> {\n  return async (route): Promise<string> => {\n    const store = inject(TitleStore);\n    const resolver = injectSnapshotPathResolver();\n    const fp = resolver(route);\n\n    const { parser } = injectTitleConfig();\n\n    const resolved = fn();\n\n    const titleSignal =\n      typeof resolved === 'string'\n        ? computed(() => resolved)\n        : computed(resolved);\n\n    const parsedTitleSignal = computed(() => parser(titleSignal()));\n\n    store.register(fp, parsedTitleSignal);\n\n    if (awaitValue) await until(parsedTitleSignal, (v) => !!v);\n\n    return Promise.resolve(untracked(parsedTitleSignal));\n  };\n}\n","/**\n * Generated bundle index. Do not edit.\n */\n\nexport * from 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