openaire-library/error/errorPage.component.ts

import {Component, Inject, Input, Optional} from '@angular/core';
import {Location}                 from '@angular/common';
import {ActivatedRoute}           from '@angular/router';
import {Title, Meta}              from '@angular/platform-browser';
import {RESPONSE} from "@nguniversal/express-engine/tokens";

@Component({
    selector: 'error',
    template: `
    <div id="tm-main" class=" uk-section  uk-margin-small-top tm-middle">
      <div uk-grid uk-grid>
       <div class="tm-main uk-width-1-1@s uk-width-1-1@m  uk-width-1-1@l uk-row-first ">
        <div class="uk-container">
            <h2>
                Bad karma: we can't find that page!
            </h2>
            <br>
            <p>
                You asked for {{page}}, but despite our computers looking very hard, we could not find it. What happened ?
            </p>
            <ul>
                <li>the link you clicked to arrive here has a typo in it</li>
                <li>or somehow we removed that page, or gave it another name</li>
                <li>or, quite unlikely for sure, maybe you typed it yourself and there was a little mistake ?</li>
            </ul>
        </div>
      </div>
     </div>
  </div>
    `
})

export class ErrorPageComponent {
    public page: string;

    constructor (private _location: Location, private _meta: Meta,
                 private _title: Title, private route: ActivatedRoute,
                 @Optional() @Inject(RESPONSE) private response: any) {

        var title = "OpenAIRE | Error page";

        this._meta.updateTag({content:title},"property='og:title'");
        this._title.setTitle(title);
        this.page = _location.path(true);
        //this.page = _router.url;
        //this.page = location.href;
    }
    ngOnInit() {
      this.response.statusCode = 404;
      this.response.statusMessage = '404 - Page not found';
         this.route.queryParams.subscribe(data => {
            this.page = data['page'];
            if (!this.page) {
              this.page = this._location.path(true);
            }
          });
    }
}