@angular/common
Version:
Angular - commonly needed directives and services
193 lines • 24.5 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 { Inject, Injectable, InjectionToken, Optional } from '@angular/core';
import { Subject } from 'rxjs';
/**
* Parser from https://tools.ietf.org/html/rfc3986#appendix-B
* ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?
* 12 3 4 5 6 7 8 9
*
* Example: http://www.ics.uci.edu/pub/ietf/uri/#Related
*
* Results in:
*
* $1 = http:
* $2 = http
* $3 = //www.ics.uci.edu
* $4 = www.ics.uci.edu
* $5 = /pub/ietf/uri/
* $6 = <undefined>
* $7 = <undefined>
* $8 = #Related
* $9 = Related
*/
const urlParse = /^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/;
function parseUrl(urlStr, baseHref) {
const verifyProtocol = /^((http[s]?|ftp):\/\/)/;
let serverBase;
// URL class requires full URL. If the URL string doesn't start with protocol, we need to add
// an arbitrary base URL which can be removed afterward.
if (!verifyProtocol.test(urlStr)) {
serverBase = 'http://empty.com/';
}
let parsedUrl;
try {
parsedUrl = new URL(urlStr, serverBase);
}
catch (e) {
const result = urlParse.exec(serverBase || '' + urlStr);
if (!result) {
throw new Error(`Invalid URL: ${urlStr} with base: ${baseHref}`);
}
const hostSplit = result[4].split(':');
parsedUrl = {
protocol: result[1],
hostname: hostSplit[0],
port: hostSplit[1] || '',
pathname: result[5],
search: result[6],
hash: result[8],
};
}
if (parsedUrl.pathname && parsedUrl.pathname.indexOf(baseHref) === 0) {
parsedUrl.pathname = parsedUrl.pathname.substring(baseHref.length);
}
return {
hostname: !serverBase && parsedUrl.hostname || '',
protocol: !serverBase && parsedUrl.protocol || '',
port: !serverBase && parsedUrl.port || '',
pathname: parsedUrl.pathname || '/',
search: parsedUrl.search || '',
hash: parsedUrl.hash || '',
};
}
/**
* Provider for mock platform location config
*
* @publicApi
*/
export const MOCK_PLATFORM_LOCATION_CONFIG = new InjectionToken('MOCK_PLATFORM_LOCATION_CONFIG');
/**
* Mock implementation of URL state.
*
* @publicApi
*/
export class MockPlatformLocation {
constructor(config) {
this.baseHref = '';
this.hashUpdate = new Subject();
this.urlChangeIndex = 0;
this.urlChanges = [{ hostname: '', protocol: '', port: '', pathname: '/', search: '', hash: '', state: null }];
if (config) {
this.baseHref = config.appBaseHref || '';
const parsedChanges = this.parseChanges(null, config.startUrl || 'http://<empty>/', this.baseHref);
this.urlChanges[0] = Object.assign({}, parsedChanges);
}
}
get hostname() {
return this.urlChanges[this.urlChangeIndex].hostname;
}
get protocol() {
return this.urlChanges[this.urlChangeIndex].protocol;
}
get port() {
return this.urlChanges[this.urlChangeIndex].port;
}
get pathname() {
return this.urlChanges[this.urlChangeIndex].pathname;
}
get search() {
return this.urlChanges[this.urlChangeIndex].search;
}
get hash() {
return this.urlChanges[this.urlChangeIndex].hash;
}
get state() {
return this.urlChanges[this.urlChangeIndex].state;
}
getBaseHrefFromDOM() {
return this.baseHref;
}
onPopState(fn) {
// No-op: a state stack is not implemented, so
// no events will ever come.
return () => { };
}
onHashChange(fn) {
const subscription = this.hashUpdate.subscribe(fn);
return () => subscription.unsubscribe();
}
get href() {
let url = `${this.protocol}//${this.hostname}${this.port ? ':' + this.port : ''}`;
url += `${this.pathname === '/' ? '' : this.pathname}${this.search}${this.hash}`;
return url;
}
get url() {
return `${this.pathname}${this.search}${this.hash}`;
}
parseChanges(state, url, baseHref = '') {
// When the `history.state` value is stored, it is always copied.
state = JSON.parse(JSON.stringify(state));
return Object.assign(Object.assign({}, parseUrl(url, baseHref)), { state });
}
replaceState(state, title, newUrl) {
const { pathname, search, state: parsedState, hash } = this.parseChanges(state, newUrl);
this.urlChanges[this.urlChangeIndex] = Object.assign(Object.assign({}, this.urlChanges[this.urlChangeIndex]), { pathname, search, hash, state: parsedState });
}
pushState(state, title, newUrl) {
const { pathname, search, state: parsedState, hash } = this.parseChanges(state, newUrl);
if (this.urlChangeIndex > 0) {
this.urlChanges.splice(this.urlChangeIndex + 1);
}
this.urlChanges.push(Object.assign(Object.assign({}, this.urlChanges[this.urlChangeIndex]), { pathname, search, hash, state: parsedState }));
this.urlChangeIndex = this.urlChanges.length - 1;
}
forward() {
const oldUrl = this.url;
const oldHash = this.hash;
if (this.urlChangeIndex < this.urlChanges.length) {
this.urlChangeIndex++;
}
this.scheduleHashUpdate(oldHash, oldUrl);
}
back() {
const oldUrl = this.url;
const oldHash = this.hash;
if (this.urlChangeIndex > 0) {
this.urlChangeIndex--;
}
this.scheduleHashUpdate(oldHash, oldUrl);
}
historyGo(relativePosition = 0) {
const oldUrl = this.url;
const oldHash = this.hash;
const nextPageIndex = this.urlChangeIndex + relativePosition;
if (nextPageIndex >= 0 && nextPageIndex < this.urlChanges.length) {
this.urlChangeIndex = nextPageIndex;
}
this.scheduleHashUpdate(oldHash, oldUrl);
}
getState() {
return this.state;
}
scheduleHashUpdate(oldHash, oldUrl) {
if (oldHash !== this.hash) {
scheduleMicroTask(() => this.hashUpdate.next({ type: 'hashchange', state: null, oldUrl, newUrl: this.url }));
}
}
}
MockPlatformLocation.decorators = [
{ type: Injectable }
];
MockPlatformLocation.ctorParameters = () => [
{ type: undefined, decorators: [{ type: Inject, args: [MOCK_PLATFORM_LOCATION_CONFIG,] }, { type: Optional }] }
];
export function scheduleMicroTask(cb) {
Promise.resolve(null).then(cb);
}
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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 {LocationChangeEvent, LocationChangeListener, PlatformLocation} from '@angular/common';\nimport {Inject, Injectable, InjectionToken, Optional} from '@angular/core';\nimport {Subject} from 'rxjs';\n\n/**\n * Parser from https://tools.ietf.org/html/rfc3986#appendix-B\n * ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?\n *  12            3  4          5       6  7        8 9\n *\n * Example: http://www.ics.uci.edu/pub/ietf/uri/#Related\n *\n * Results in:\n *\n * $1 = http:\n * $2 = http\n * $3 = //www.ics.uci.edu\n * $4 = www.ics.uci.edu\n * $5 = /pub/ietf/uri/\n * $6 = <undefined>\n * $7 = <undefined>\n * $8 = #Related\n * $9 = Related\n */\nconst urlParse = /^(([^:\\/?#]+):)?(\\/\\/([^\\/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?/;\n\nfunction parseUrl(urlStr: string, baseHref: string) {\n  const verifyProtocol = /^((http[s]?|ftp):\\/\\/)/;\n  let serverBase: string|undefined;\n\n  // URL class requires full URL. If the URL string doesn't start with protocol, we need to add\n  // an arbitrary base URL which can be removed afterward.\n  if (!verifyProtocol.test(urlStr)) {\n    serverBase = 'http://empty.com/';\n  }\n  let parsedUrl: {\n    protocol: string,\n    hostname: string,\n    port: string,\n    pathname: string,\n    search: string,\n    hash: string\n  };\n  try {\n    parsedUrl = new URL(urlStr, serverBase);\n  } catch (e) {\n    const result = urlParse.exec(serverBase || '' + urlStr);\n    if (!result) {\n      throw new Error(`Invalid URL: ${urlStr} with base: ${baseHref}`);\n    }\n    const hostSplit = result[4].split(':');\n    parsedUrl = {\n      protocol: result[1],\n      hostname: hostSplit[0],\n      port: hostSplit[1] || '',\n      pathname: result[5],\n      search: result[6],\n      hash: result[8],\n    };\n  }\n  if (parsedUrl.pathname && parsedUrl.pathname.indexOf(baseHref) === 0) {\n    parsedUrl.pathname = parsedUrl.pathname.substring(baseHref.length);\n  }\n  return {\n    hostname: !serverBase && parsedUrl.hostname || '',\n    protocol: !serverBase && parsedUrl.protocol || '',\n    port: !serverBase && parsedUrl.port || '',\n    pathname: parsedUrl.pathname || '/',\n    search: parsedUrl.search || '',\n    hash: parsedUrl.hash || '',\n  };\n}\n\n/**\n * Mock platform location config\n *\n * @publicApi\n */\nexport interface MockPlatformLocationConfig {\n  startUrl?: string;\n  appBaseHref?: string;\n}\n\n/**\n * Provider for mock platform location config\n *\n * @publicApi\n */\nexport const MOCK_PLATFORM_LOCATION_CONFIG =\n    new InjectionToken<MockPlatformLocationConfig>('MOCK_PLATFORM_LOCATION_CONFIG');\n\n/**\n * Mock implementation of URL state.\n *\n * @publicApi\n */\n@Injectable()\nexport class MockPlatformLocation implements PlatformLocation {\n  private baseHref: string = '';\n  private hashUpdate = new Subject<LocationChangeEvent>();\n  private urlChangeIndex: number = 0;\n  private urlChanges: {\n    hostname: string,\n    protocol: string,\n    port: string,\n    pathname: string,\n    search: string,\n    hash: string,\n    state: unknown\n  }[] = [{hostname: '', protocol: '', port: '', pathname: '/', search: '', hash: '', state: null}];\n\n  constructor(@Inject(MOCK_PLATFORM_LOCATION_CONFIG) @Optional() config?:\n                  MockPlatformLocationConfig) {\n    if (config) {\n      this.baseHref = config.appBaseHref || '';\n\n      const parsedChanges =\n          this.parseChanges(null, config.startUrl || 'http://<empty>/', this.baseHref);\n      this.urlChanges[0] = {...parsedChanges};\n    }\n  }\n\n  get hostname() {\n    return this.urlChanges[this.urlChangeIndex].hostname;\n  }\n  get protocol() {\n    return this.urlChanges[this.urlChangeIndex].protocol;\n  }\n  get port() {\n    return this.urlChanges[this.urlChangeIndex].port;\n  }\n  get pathname() {\n    return this.urlChanges[this.urlChangeIndex].pathname;\n  }\n  get search() {\n    return this.urlChanges[this.urlChangeIndex].search;\n  }\n  get hash() {\n    return this.urlChanges[this.urlChangeIndex].hash;\n  }\n  get state() {\n    return this.urlChanges[this.urlChangeIndex].state;\n  }\n\n\n  getBaseHrefFromDOM(): string {\n    return this.baseHref;\n  }\n\n  onPopState(fn: LocationChangeListener): VoidFunction {\n    // No-op: a state stack is not implemented, so\n    // no events will ever come.\n    return () => {};\n  }\n\n  onHashChange(fn: LocationChangeListener): VoidFunction {\n    const subscription = this.hashUpdate.subscribe(fn);\n    return () => subscription.unsubscribe();\n  }\n\n  get href(): string {\n    let url = `${this.protocol}//${this.hostname}${this.port ? ':' + this.port : ''}`;\n    url += `${this.pathname === '/' ? '' : this.pathname}${this.search}${this.hash}`;\n    return url;\n  }\n\n  get url(): string {\n    return `${this.pathname}${this.search}${this.hash}`;\n  }\n\n  private parseChanges(state: unknown, url: string, baseHref: string = '') {\n    // When the `history.state` value is stored, it is always copied.\n    state = JSON.parse(JSON.stringify(state));\n    return {...parseUrl(url, baseHref), state};\n  }\n\n  replaceState(state: any, title: string, newUrl: string): void {\n    const {pathname, search, state: parsedState, hash} = this.parseChanges(state, newUrl);\n\n    this.urlChanges[this.urlChangeIndex] =\n        {...this.urlChanges[this.urlChangeIndex], pathname, search, hash, state: parsedState};\n  }\n\n  pushState(state: any, title: string, newUrl: string): void {\n    const {pathname, search, state: parsedState, hash} = this.parseChanges(state, newUrl);\n    if (this.urlChangeIndex > 0) {\n      this.urlChanges.splice(this.urlChangeIndex + 1);\n    }\n    this.urlChanges.push(\n        {...this.urlChanges[this.urlChangeIndex], pathname, search, hash, state: parsedState});\n    this.urlChangeIndex = this.urlChanges.length - 1;\n  }\n\n  forward(): void {\n    const oldUrl = this.url;\n    const oldHash = this.hash;\n    if (this.urlChangeIndex < this.urlChanges.length) {\n      this.urlChangeIndex++;\n    }\n    this.scheduleHashUpdate(oldHash, oldUrl);\n  }\n\n  back(): void {\n    const oldUrl = this.url;\n    const oldHash = this.hash;\n    if (this.urlChangeIndex > 0) {\n      this.urlChangeIndex--;\n    }\n    this.scheduleHashUpdate(oldHash, oldUrl);\n  }\n\n  historyGo(relativePosition: number = 0): void {\n    const oldUrl = this.url;\n    const oldHash = this.hash;\n    const nextPageIndex = this.urlChangeIndex + relativePosition;\n    if (nextPageIndex >= 0 && nextPageIndex < this.urlChanges.length) {\n      this.urlChangeIndex = nextPageIndex;\n    }\n    this.scheduleHashUpdate(oldHash, oldUrl);\n  }\n\n  getState(): unknown {\n    return this.state;\n  }\n\n  private scheduleHashUpdate(oldHash: string, oldUrl: string) {\n    if (oldHash !== this.hash) {\n      scheduleMicroTask(\n          () => this.hashUpdate.next(\n              {type: 'hashchange', state: null, oldUrl, newUrl: this.url} as LocationChangeEvent));\n    }\n  }\n}\n\nexport function scheduleMicroTask(cb: () => any) {\n  Promise.resolve(null).then(cb);\n}\n"]}