@angular/router
Version:
Angular - the routing library
117 lines • 18.3 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { ɵRuntimeError as RuntimeError } from '@angular/core';
import { of, throwError } from 'rxjs';
import { navigationCancelingError } from './navigation_canceling_error';
import { PRIMARY_OUTLET } from './shared';
import { UrlSegmentGroup, UrlTree } from './url_tree';
export class NoMatch {
constructor(segmentGroup) {
this.segmentGroup = segmentGroup || null;
}
}
export class AbsoluteRedirect extends Error {
constructor(urlTree) {
super();
this.urlTree = urlTree;
}
}
export function noMatch(segmentGroup) {
return throwError(new NoMatch(segmentGroup));
}
export function absoluteRedirect(newTree) {
return throwError(new AbsoluteRedirect(newTree));
}
export function namedOutletsRedirect(redirectTo) {
return throwError(new RuntimeError(4000 /* RuntimeErrorCode.NAMED_OUTLET_REDIRECT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&
`Only absolute redirects can have named outlets. redirectTo: '${redirectTo}'`));
}
export function canLoadFails(route) {
return throwError(navigationCancelingError((typeof ngDevMode === 'undefined' || ngDevMode) &&
`Cannot load children because the guard of the route "path: '${route.path}'" returned false`, 3 /* NavigationCancellationCode.GuardRejected */));
}
export class ApplyRedirects {
constructor(urlSerializer, urlTree) {
this.urlSerializer = urlSerializer;
this.urlTree = urlTree;
}
noMatchError(e) {
return new RuntimeError(4002 /* RuntimeErrorCode.NO_MATCH */, (typeof ngDevMode === 'undefined' || ngDevMode) &&
`Cannot match any routes. URL Segment: '${e.segmentGroup}'`);
}
lineralizeSegments(route, urlTree) {
let res = [];
let c = urlTree.root;
while (true) {
res = res.concat(c.segments);
if (c.numberOfChildren === 0) {
return of(res);
}
if (c.numberOfChildren > 1 || !c.children[PRIMARY_OUTLET]) {
return namedOutletsRedirect(route.redirectTo);
}
c = c.children[PRIMARY_OUTLET];
}
}
applyRedirectCommands(segments, redirectTo, posParams) {
const newTree = this.applyRedirectCreateUrlTree(redirectTo, this.urlSerializer.parse(redirectTo), segments, posParams);
if (redirectTo.startsWith('/')) {
throw new AbsoluteRedirect(newTree);
}
return newTree;
}
applyRedirectCreateUrlTree(redirectTo, urlTree, segments, posParams) {
const newRoot = this.createSegmentGroup(redirectTo, urlTree.root, segments, posParams);
return new UrlTree(newRoot, this.createQueryParams(urlTree.queryParams, this.urlTree.queryParams), urlTree.fragment);
}
createQueryParams(redirectToParams, actualParams) {
const res = {};
Object.entries(redirectToParams).forEach(([k, v]) => {
const copySourceValue = typeof v === 'string' && v.startsWith(':');
if (copySourceValue) {
const sourceName = v.substring(1);
res[k] = actualParams[sourceName];
}
else {
res[k] = v;
}
});
return res;
}
createSegmentGroup(redirectTo, group, segments, posParams) {
const updatedSegments = this.createSegments(redirectTo, group.segments, segments, posParams);
let children = {};
Object.entries(group.children).forEach(([name, child]) => {
children[name] = this.createSegmentGroup(redirectTo, child, segments, posParams);
});
return new UrlSegmentGroup(updatedSegments, children);
}
createSegments(redirectTo, redirectToSegments, actualSegments, posParams) {
return redirectToSegments.map(s => s.path.startsWith(':') ? this.findPosParam(redirectTo, s, posParams) :
this.findOrReturn(s, actualSegments));
}
findPosParam(redirectTo, redirectToUrlSegment, posParams) {
const pos = posParams[redirectToUrlSegment.path.substring(1)];
if (!pos)
throw new RuntimeError(4001 /* RuntimeErrorCode.MISSING_REDIRECT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&
`Cannot redirect to '${redirectTo}'. Cannot find '${redirectToUrlSegment.path}'.`);
return pos;
}
findOrReturn(redirectToUrlSegment, actualSegments) {
let idx = 0;
for (const s of actualSegments) {
if (s.path === redirectToUrlSegment.path) {
actualSegments.splice(idx);
return s;
}
idx++;
}
return redirectToUrlSegment;
}
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ɵRuntimeError as RuntimeError} from '@angular/core';\nimport {Observable, of, throwError} from 'rxjs';\n\nimport {RuntimeErrorCode} from './errors';\nimport {NavigationCancellationCode} from './events';\nimport {LoadedRouterConfig, Route} from './models';\nimport {navigationCancelingError} from './navigation_canceling_error';\nimport {Params, PRIMARY_OUTLET} from './shared';\nimport {UrlSegment, UrlSegmentGroup, UrlSerializer, UrlTree} from './url_tree';\n\n\nexport class NoMatch {\n  public segmentGroup: UrlSegmentGroup|null;\n\n  constructor(segmentGroup?: UrlSegmentGroup) {\n    this.segmentGroup = segmentGroup || null;\n  }\n}\n\nexport class AbsoluteRedirect extends Error {\n  constructor(public urlTree: UrlTree) {\n    super();\n  }\n}\n\nexport function noMatch(segmentGroup: UrlSegmentGroup): Observable<any> {\n  return throwError(new NoMatch(segmentGroup));\n}\n\nexport function absoluteRedirect(newTree: UrlTree): Observable<any> {\n  return throwError(new AbsoluteRedirect(newTree));\n}\n\nexport function namedOutletsRedirect(redirectTo: string): Observable<any> {\n  return throwError(new RuntimeError(\n      RuntimeErrorCode.NAMED_OUTLET_REDIRECT,\n      (typeof ngDevMode === 'undefined' || ngDevMode) &&\n          `Only absolute redirects can have named outlets. redirectTo: '${redirectTo}'`));\n}\n\nexport function canLoadFails(route: Route): Observable<LoadedRouterConfig> {\n  return throwError(navigationCancelingError(\n      (typeof ngDevMode === 'undefined' || ngDevMode) &&\n          `Cannot load children because the guard of the route \"path: '${\n              route.path}'\" returned false`,\n      NavigationCancellationCode.GuardRejected));\n}\n\n\nexport class ApplyRedirects {\n  constructor(private urlSerializer: UrlSerializer, private urlTree: UrlTree) {}\n\n  noMatchError(e: NoMatch): any {\n    return new RuntimeError(\n        RuntimeErrorCode.NO_MATCH,\n        (typeof ngDevMode === 'undefined' || ngDevMode) &&\n            `Cannot match any routes. URL Segment: '${e.segmentGroup}'`);\n  }\n\n  lineralizeSegments(route: Route, urlTree: UrlTree): Observable<UrlSegment[]> {\n    let res: UrlSegment[] = [];\n    let c = urlTree.root;\n    while (true) {\n      res = res.concat(c.segments);\n      if (c.numberOfChildren === 0) {\n        return of(res);\n      }\n\n      if (c.numberOfChildren > 1 || !c.children[PRIMARY_OUTLET]) {\n        return namedOutletsRedirect(route.redirectTo!);\n      }\n\n      c = c.children[PRIMARY_OUTLET];\n    }\n  }\n\n  applyRedirectCommands(\n      segments: UrlSegment[], redirectTo: string, posParams: {[k: string]: UrlSegment}): UrlTree {\n    const newTree = this.applyRedirectCreateUrlTree(\n        redirectTo, this.urlSerializer.parse(redirectTo), segments, posParams);\n    if (redirectTo.startsWith('/')) {\n      throw new AbsoluteRedirect(newTree);\n    }\n    return newTree;\n  }\n\n  applyRedirectCreateUrlTree(\n      redirectTo: string, urlTree: UrlTree, segments: UrlSegment[],\n      posParams: {[k: string]: UrlSegment}): UrlTree {\n    const newRoot = this.createSegmentGroup(redirectTo, urlTree.root, segments, posParams);\n    return new UrlTree(\n        newRoot, this.createQueryParams(urlTree.queryParams, this.urlTree.queryParams),\n        urlTree.fragment);\n  }\n\n  createQueryParams(redirectToParams: Params, actualParams: Params): Params {\n    const res: Params = {};\n    Object.entries(redirectToParams).forEach(([k, v]) => {\n      const copySourceValue = typeof v === 'string' && v.startsWith(':');\n      if (copySourceValue) {\n        const sourceName = v.substring(1);\n        res[k] = actualParams[sourceName];\n      } else {\n        res[k] = v;\n      }\n    });\n    return res;\n  }\n\n  createSegmentGroup(\n      redirectTo: string, group: UrlSegmentGroup, segments: UrlSegment[],\n      posParams: {[k: string]: UrlSegment}): UrlSegmentGroup {\n    const updatedSegments = this.createSegments(redirectTo, group.segments, segments, posParams);\n\n    let children: {[n: string]: UrlSegmentGroup} = {};\n    Object.entries(group.children).forEach(([name, child]) => {\n      children[name] = this.createSegmentGroup(redirectTo, child, segments, posParams);\n    });\n\n    return new UrlSegmentGroup(updatedSegments, children);\n  }\n\n  createSegments(\n      redirectTo: string, redirectToSegments: UrlSegment[], actualSegments: UrlSegment[],\n      posParams: {[k: string]: UrlSegment}): UrlSegment[] {\n    return redirectToSegments.map(\n        s => s.path.startsWith(':') ? this.findPosParam(redirectTo, s, posParams) :\n                                      this.findOrReturn(s, actualSegments));\n  }\n\n  findPosParam(\n      redirectTo: string, redirectToUrlSegment: UrlSegment,\n      posParams: {[k: string]: UrlSegment}): UrlSegment {\n    const pos = posParams[redirectToUrlSegment.path.substring(1)];\n    if (!pos)\n      throw new RuntimeError(\n          RuntimeErrorCode.MISSING_REDIRECT,\n          (typeof ngDevMode === 'undefined' || ngDevMode) &&\n              `Cannot redirect to '${redirectTo}'. Cannot find '${redirectToUrlSegment.path}'.`);\n    return pos;\n  }\n\n  findOrReturn(redirectToUrlSegment: UrlSegment, actualSegments: UrlSegment[]): UrlSegment {\n    let idx = 0;\n    for (const s of actualSegments) {\n      if (s.path === redirectToUrlSegment.path) {\n        actualSegments.splice(idx);\n        return s;\n      }\n      idx++;\n    }\n    return redirectToUrlSegment;\n  }\n}\n"]}