52 lines
1.5 KiB
TypeScript
52 lines
1.5 KiB
TypeScript
import {Component, Input, OnInit} from '@angular/core';
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import {ActivatedRoute, NavigationEnd, Router} from '@angular/router';
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import {StateService} from '../../services/state.service';
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@Component({
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selector: 'app-languagetoggle',
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templateUrl: './languagetoggle.component.html',
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styleUrls: ['./languagetoggle.component.scss']
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})
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export class LanguagetoggleComponent implements OnInit {
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/**
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* This is the language for which the component is defined. Typically, when the currently set language is equal to this variable,
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* the component will be visible.
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*/
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@Input()
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private language: string;
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/**
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* if this is set to true, the component will be visible
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*/
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private show = false;
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constructor(private router: Router, private route: ActivatedRoute, private stateService: StateService) {
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}
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ngOnInit() {
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this.route.pathFromRoot.forEach(p => {
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this.router.events.filter(e => e instanceof NavigationEnd).subscribe(e => {
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console.log('language toggle is detecting a navigation end: have to update values, things might have changed!');
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this.updateValues();
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});
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});
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}
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private updateValues() {
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const lang = this.stateService.getLanguage();
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if (lang == null) {
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console.log('languagetoggle: language is null from stateservice, ignoring');
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return;
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}
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console.log('languagetoggle gets lang: ' + lang);
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if (lang === this.language) {
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console.log('languagetoggle: showing the component ' + lang);
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this.show = true;
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} else {
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this.show = false;
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}
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}
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}
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