153 lines
4.0 KiB
TypeScript
153 lines
4.0 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Route, UrlMatchResult} from './config';
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import {UrlSegment, UrlSegmentGroup} from './url_tree';
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/**
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* The primary routing outlet.
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*
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* @publicApi
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*/
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export const PRIMARY_OUTLET = 'primary';
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/**
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* A collection of matrix and query URL parameters.
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* @see `convertToParamMap()`
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* @see `ParamMap`
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*
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* @publicApi
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*/
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export type Params = {
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[key: string]: any;
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};
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/**
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* A map that provides access to the required and optional parameters
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* specific to a route.
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* The map supports retrieving a single value with `get()`
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* or multiple values with `getAll()`.
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*
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* @see [URLSearchParams](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams)
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*
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* @publicApi
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*/
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export interface ParamMap {
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/**
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* Reports whether the map contains a given parameter.
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* @param name The parameter name.
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* @returns True if the map contains the given parameter, false otherwise.
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*/
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has(name: string): boolean;
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/**
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* Retrieves a single value for a parameter.
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* @param name The parameter name.
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* @return The parameter's single value,
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* or the first value if the parameter has multiple values,
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* or `null` when there is no such parameter.
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*/
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get(name: string): string|null;
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/**
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* Retrieves multiple values for a parameter.
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* @param name The parameter name.
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* @return An array containing one or more values,
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* or an empty array if there is no such parameter.
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*
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*/
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getAll(name: string): string[];
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/** Names of the parameters in the map. */
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readonly keys: string[];
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}
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class ParamsAsMap implements ParamMap {
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private params: Params;
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constructor(params: Params) { this.params = params || {}; }
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has(name: string): boolean { return this.params.hasOwnProperty(name); }
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get(name: string): string|null {
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if (this.has(name)) {
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const v = this.params[name];
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return Array.isArray(v) ? v[0] : v;
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}
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return null;
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}
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getAll(name: string): string[] {
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if (this.has(name)) {
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const v = this.params[name];
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return Array.isArray(v) ? v : [v];
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}
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return [];
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}
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get keys(): string[] { return Object.keys(this.params); }
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}
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/**
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* Converts a `Params` instance to a `ParamMap`.
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* @param params The instance to convert.
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* @returns The new map instance.
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*
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* @publicApi
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*/
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export function convertToParamMap(params: Params): ParamMap {
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return new ParamsAsMap(params);
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}
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const NAVIGATION_CANCELING_ERROR = 'ngNavigationCancelingError';
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export function navigationCancelingError(message: string) {
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const error = Error('NavigationCancelingError: ' + message);
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(error as any)[NAVIGATION_CANCELING_ERROR] = true;
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return error;
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}
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export function isNavigationCancelingError(error: Error) {
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return error && (error as any)[NAVIGATION_CANCELING_ERROR];
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}
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// Matches the route configuration (`route`) against the actual URL (`segments`).
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export function defaultUrlMatcher(
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segments: UrlSegment[], segmentGroup: UrlSegmentGroup, route: Route): UrlMatchResult|null {
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const parts = route.path !.split('/');
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if (parts.length > segments.length) {
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// The actual URL is shorter than the config, no match
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return null;
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}
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if (route.pathMatch === 'full' &&
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(segmentGroup.hasChildren() || parts.length < segments.length)) {
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// The config is longer than the actual URL but we are looking for a full match, return null
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return null;
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}
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const posParams: {[key: string]: UrlSegment} = {};
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// Check each config part against the actual URL
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for (let index = 0; index < parts.length; index++) {
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const part = parts[index];
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const segment = segments[index];
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const isParameter = part.startsWith(':');
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if (isParameter) {
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posParams[part.substring(1)] = segment;
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} else if (part !== segment.path) {
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// The actual URL part does not match the config, no match
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return null;
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}
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}
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return {consumed: segments.slice(0, parts.length), posParams};
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}
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