1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | import { Inject, Injectable, InjectionToken, Optional, ɵɵinject } from '@angular/core';
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9 | import { DOCUMENT } from '../dom_tokens';
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10 | import { PlatformLocation } from './platform_location';
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11 | import { joinWithSlash, normalizeQueryParams } from './util';
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12 | import * as i0 from "@angular/core";
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13 | /**
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14 | * Enables the `Location` service to read route state from the browser's URL.
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15 | * Angular provides two strategies:
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16 | * `HashLocationStrategy` and `PathLocationStrategy`.
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17 | *
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18 | * Applications should use the `Router` or `Location` services to
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19 | * interact with application route state.
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20 | *
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21 | * For instance, `HashLocationStrategy` produces URLs like
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22 | * <code class="no-auto-link">http://example.com#/foo</code>,
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23 | * and `PathLocationStrategy` produces
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24 | * <code class="no-auto-link">http://example.com/foo</code> as an equivalent URL.
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25 | *
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26 | * See these two classes for more.
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27 | *
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28 | * @publicApi
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29 | */
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30 | export class LocationStrategy {
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31 | historyGo(relativePosition) {
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32 | throw new Error('Not implemented');
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33 | }
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34 | }
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35 | LocationStrategy.ɵprov = i0.ɵɵdefineInjectable({ factory: provideLocationStrategy, token: LocationStrategy, providedIn: "root" });
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36 | LocationStrategy.decorators = [
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37 | { type: Injectable, args: [{ providedIn: 'root', useFactory: provideLocationStrategy },] }
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38 | ];
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39 | export function provideLocationStrategy(platformLocation) {
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40 | // See #23917
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41 | const location = ɵɵinject(DOCUMENT).location;
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42 | return new PathLocationStrategy(ɵɵinject(PlatformLocation), location && location.origin || '');
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43 | }
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44 | /**
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45 | * A predefined [DI token](guide/glossary#di-token) for the base href
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46 | * to be used with the `PathLocationStrategy`.
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47 | * The base href is the URL prefix that should be preserved when generating
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48 | * and recognizing URLs.
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49 | *
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50 | * @usageNotes
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51 | *
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52 | * The following example shows how to use this token to configure the root app injector
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53 | * with a base href value, so that the DI framework can supply the dependency anywhere in the app.
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54 | *
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55 | * ```typescript
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56 | * import {Component, NgModule} from '@angular/core';
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57 | * import {APP_BASE_HREF} from '@angular/common';
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58 | *
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59 | * @NgModule({
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60 | * providers: [{provide: APP_BASE_HREF, useValue: '/my/app'}]
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61 | * })
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62 | * class AppModule {}
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63 | * ```
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64 | *
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65 | * @publicApi
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66 | */
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67 | export const APP_BASE_HREF = new InjectionToken('appBaseHref');
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68 | /**
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69 | * @description
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70 | * A {@link LocationStrategy} used to configure the {@link Location} service to
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71 | * represent its state in the
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72 | * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the
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73 | * browser's URL.
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74 | *
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75 | * If you're using `PathLocationStrategy`, you must provide a {@link APP_BASE_HREF}
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76 | * or add a `<base href>` element to the document.
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77 | *
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78 | * For instance, if you provide an `APP_BASE_HREF` of `'/my/app/'` and call
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79 | * `location.go('/foo')`, the browser's URL will become
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80 | * `example.com/my/app/foo`. To ensure all relative URIs resolve correctly,
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81 | * the `<base href>` and/or `APP_BASE_HREF` should end with a `/`.
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82 | *
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83 | * Similarly, if you add `<base href='/my/app/'/>` to the document and call
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84 | * `location.go('/foo')`, the browser's URL will become
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85 | * `example.com/my/app/foo`.
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86 | *
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87 | * Note that when using `PathLocationStrategy`, neither the query nor
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88 | * the fragment in the `<base href>` will be preserved, as outlined
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89 | * by the [RFC](https://tools.ietf.org/html/rfc3986#section-5.2.2).
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90 | *
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91 | * @usageNotes
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92 | *
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93 | * ### Example
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94 | *
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95 | * {@example common/location/ts/path_location_component.ts region='LocationComponent'}
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96 | *
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97 | * @publicApi
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98 | */
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99 | export class PathLocationStrategy extends LocationStrategy {
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100 | constructor(_platformLocation, href) {
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101 | super();
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102 | this._platformLocation = _platformLocation;
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103 | this._removeListenerFns = [];
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104 | if (href == null) {
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105 | href = this._platformLocation.getBaseHrefFromDOM();
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106 | }
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107 | if (href == null) {
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108 | throw new Error(`No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.`);
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109 | }
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110 | this._baseHref = href;
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111 | }
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112 | ngOnDestroy() {
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113 | while (this._removeListenerFns.length) {
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114 | this._removeListenerFns.pop()();
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115 | }
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116 | }
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117 | onPopState(fn) {
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118 | this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));
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119 | }
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120 | getBaseHref() {
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121 | return this._baseHref;
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122 | }
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123 | prepareExternalUrl(internal) {
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124 | return joinWithSlash(this._baseHref, internal);
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125 | }
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126 | path(includeHash = false) {
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127 | const pathname = this._platformLocation.pathname + normalizeQueryParams(this._platformLocation.search);
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128 | const hash = this._platformLocation.hash;
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129 | return hash && includeHash ? `${pathname}${hash}` : pathname;
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130 | }
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131 | pushState(state, title, url, queryParams) {
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132 | const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));
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133 | this._platformLocation.pushState(state, title, externalUrl);
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134 | }
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135 | replaceState(state, title, url, queryParams) {
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136 | const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));
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137 | this._platformLocation.replaceState(state, title, externalUrl);
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138 | }
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139 | forward() {
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140 | this._platformLocation.forward();
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141 | }
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142 | back() {
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143 | this._platformLocation.back();
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144 | }
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145 | historyGo(relativePosition = 0) {
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146 | var _a, _b;
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147 | (_b = (_a = this._platformLocation).historyGo) === null || _b === void 0 ? void 0 : _b.call(_a, relativePosition);
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148 | }
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149 | }
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150 | PathLocationStrategy.decorators = [
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151 | { type: Injectable }
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152 | ];
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153 | PathLocationStrategy.ctorParameters = () => [
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154 | { type: PlatformLocation },
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155 | { type: String, decorators: [{ type: Optional }, { type: Inject, args: [APP_BASE_HREF,] }] }
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156 | ];
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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 {Inject, Injectable, InjectionToken, OnDestroy, Optional, ɵɵinject} from '@angular/core';\nimport {DOCUMENT} from '../dom_tokens';\nimport {LocationChangeListener, PlatformLocation} from './platform_location';\nimport {joinWithSlash, normalizeQueryParams} from './util';\n\n/**\n * Enables the `Location` service to read route state from the browser's URL.\n * Angular provides two strategies:\n * `HashLocationStrategy` and `PathLocationStrategy`.\n *\n * Applications should use the `Router` or `Location` services to\n * interact with application route state.\n *\n * For instance, `HashLocationStrategy` produces URLs like\n * <code class=\"no-auto-link\">http://example.com#/foo</code>,\n * and `PathLocationStrategy` produces\n * <code class=\"no-auto-link\">http://example.com/foo</code> as an equivalent URL.\n *\n * See these two classes for more.\n *\n * @publicApi\n */\n@Injectable({providedIn: 'root', useFactory: provideLocationStrategy})\nexport abstract class LocationStrategy {\n  abstract path(includeHash?: boolean): string;\n  abstract prepareExternalUrl(internal: string): string;\n  abstract pushState(state: any, title: string, url: string, queryParams: string): void;\n  abstract replaceState(state: any, title: string, url: string, queryParams: string): void;\n  abstract forward(): void;\n  abstract back(): void;\n  historyGo?(relativePosition: number): void {\n    throw new Error('Not implemented');\n  }\n  abstract onPopState(fn: LocationChangeListener): void;\n  abstract getBaseHref(): string;\n}\n\nexport function provideLocationStrategy(platformLocation: PlatformLocation) {\n  // See #23917\n  const location = ɵɵinject(DOCUMENT).location;\n  return new PathLocationStrategy(\n      ɵɵinject(PlatformLocation as any), location && location.origin || '');\n}\n\n\n/**\n * A predefined [DI token](guide/glossary#di-token) for the base href\n * to be used with the `PathLocationStrategy`.\n * The base href is the URL prefix that should be preserved when generating\n * and recognizing URLs.\n *\n * @usageNotes\n *\n * The following example shows how to use this token to configure the root app injector\n * with a base href value, so that the DI framework can supply the dependency anywhere in the app.\n *\n * ```typescript\n * import {Component, NgModule} from '@angular/core';\n * import {APP_BASE_HREF} from '@angular/common';\n *\n * @NgModule({\n *   providers: [{provide: APP_BASE_HREF, useValue: '/my/app'}]\n * })\n * class AppModule {}\n * ```\n *\n * @publicApi\n */\nexport const APP_BASE_HREF = new InjectionToken<string>('appBaseHref');\n\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the\n * browser's URL.\n *\n * If you're using `PathLocationStrategy`, you must provide a {@link APP_BASE_HREF}\n * or add a `<base href>` element to the document.\n *\n * For instance, if you provide an `APP_BASE_HREF` of `'/my/app/'` and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`. To ensure all relative URIs resolve correctly,\n * the `<base href>` and/or `APP_BASE_HREF` should end with a `/`.\n *\n * Similarly, if you add `<base href='/my/app/'/>` to the document and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * Note that when using `PathLocationStrategy`, neither the query nor\n * the fragment in the `<base href>` will be preserved, as outlined\n * by the [RFC](https://tools.ietf.org/html/rfc3986#section-5.2.2).\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/path_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\n@Injectable()\nexport class PathLocationStrategy extends LocationStrategy implements OnDestroy {\n  private _baseHref: string;\n  private _removeListenerFns: (() => void)[] = [];\n\n  constructor(\n      private _platformLocation: PlatformLocation,\n      @Optional() @Inject(APP_BASE_HREF) href?: string) {\n    super();\n\n    if (href == null) {\n      href = this._platformLocation.getBaseHrefFromDOM();\n    }\n\n    if (href == null) {\n      throw new Error(\n          `No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.`);\n    }\n\n    this._baseHref = href;\n  }\n\n  ngOnDestroy(): void {\n    while (this._removeListenerFns.length) {\n      this._removeListenerFns.pop()!();\n    }\n  }\n\n  override onPopState(fn: LocationChangeListener): void {\n    this._removeListenerFns.push(\n        this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));\n  }\n\n  override getBaseHref(): string {\n    return this._baseHref;\n  }\n\n  override prepareExternalUrl(internal: string): string {\n    return joinWithSlash(this._baseHref, internal);\n  }\n\n  override path(includeHash: boolean = false): string {\n    const pathname =\n        this._platformLocation.pathname + normalizeQueryParams(this._platformLocation.search);\n    const hash = this._platformLocation.hash;\n    return hash && includeHash ? `${pathname}${hash}` : pathname;\n  }\n\n  override pushState(state: any, title: string, url: string, queryParams: string) {\n    const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n    this._platformLocation.pushState(state, title, externalUrl);\n  }\n\n  override replaceState(state: any, title: string, url: string, queryParams: string) {\n    const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n    this._platformLocation.replaceState(state, title, externalUrl);\n  }\n\n  override forward(): void {\n    this._platformLocation.forward();\n  }\n\n  override back(): void {\n    this._platformLocation.back();\n  }\n\n  override historyGo(relativePosition: number = 0): void {\n    this._platformLocation.historyGo?.(relativePosition);\n  }\n}\n"]} |
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