@angular/common
Version:
Angular - commonly needed directives and services
103 lines • 11.8 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, Optional } from '@angular/core';
import { APP_BASE_HREF, LocationStrategy } from './location_strategy';
import { PlatformLocation } from './platform_location';
import { joinWithSlash, normalizeQueryParams } from './util';
import * as i0 from "@angular/core";
import * as i1 from "./platform_location";
/**
* @description
* A {@link LocationStrategy} used to configure the {@link Location} service to
* represent its state in the
* [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)
* of the browser's URL.
*
* For instance, if you call `location.go('/foo')`, the browser's URL will become
* `example.com#/foo`.
*
* @usageNotes
*
* ### Example
*
* {@example common/location/ts/hash_location_component.ts region='LocationComponent'}
*
* @publicApi
*/
export class HashLocationStrategy extends LocationStrategy {
constructor(_platformLocation, _baseHref) {
super();
this._platformLocation = _platformLocation;
this._baseHref = '';
this._removeListenerFns = [];
if (_baseHref != null) {
this._baseHref = _baseHref;
}
}
/** @nodoc */
ngOnDestroy() {
while (this._removeListenerFns.length) {
this._removeListenerFns.pop()();
}
}
onPopState(fn) {
this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));
}
getBaseHref() {
return this._baseHref;
}
path(includeHash = false) {
// the hash value is always prefixed with a `#`
// and if it is empty then it will stay empty
let path = this._platformLocation.hash;
if (path == null)
path = '#';
return path.length > 0 ? path.substring(1) : path;
}
prepareExternalUrl(internal) {
const url = joinWithSlash(this._baseHref, internal);
return url.length > 0 ? ('#' + url) : url;
}
pushState(state, title, path, queryParams) {
let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
if (url.length == 0) {
url = this._platformLocation.pathname;
}
this._platformLocation.pushState(state, title, url);
}
replaceState(state, title, path, queryParams) {
let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
if (url.length == 0) {
url = this._platformLocation.pathname;
}
this._platformLocation.replaceState(state, title, url);
}
forward() {
this._platformLocation.forward();
}
back() {
this._platformLocation.back();
}
getState() {
return this._platformLocation.getState();
}
historyGo(relativePosition = 0) {
this._platformLocation.historyGo?.(relativePosition);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.1.1", ngImport: i0, type: HashLocationStrategy, deps: [{ token: i1.PlatformLocation }, { token: APP_BASE_HREF, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.1.1", ngImport: i0, type: HashLocationStrategy }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.1.1", ngImport: i0, type: HashLocationStrategy, decorators: [{
type: Injectable
}], ctorParameters: () => [{ type: i1.PlatformLocation }, { type: undefined, decorators: [{
type: Optional
}, {
type: Inject,
args: [APP_BASE_HREF]
}] }] });
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