| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'package:nnbd_migration/src/preview/pages.dart'; |
| import 'package:nnbd_migration/src/preview/preview_site.dart'; |
| |
| /// A page displayed on the preview site. |
| abstract class PreviewPage extends Page { |
| /// The site containing the page. |
| final PreviewSite site; |
| |
| /// Initialize a newly created page within the given [site]. The [id] is the |
| /// portion of the path to the page that follows the initial slash ('/'). |
| PreviewPage(this.site, String id) : super(id); |
| |
| /// Whether pages of this type require authorization. |
| bool get requiresAuth; |
| |
| /// Generate the content of the body tag. |
| void generateBody(Map<String, String> params); |
| |
| /// Generate the content of the head tag. |
| void generateHead() { |
| buf.writeln('<meta charset="utf-8">'); |
| buf.writeln('<meta name="viewport" content="width=device-width, ' |
| 'initial-scale=1.0">'); |
| buf.writeln('<title>${site.title}</title>'); |
| } |
| |
| @override |
| Future<void> generatePage(Map<String, String> params) async { |
| buf.writeln('<!DOCTYPE html><html lang="en">'); |
| buf.writeln('<head>'); |
| buf.writeln('</head>'); |
| generateHead(); |
| buf.writeln('<body>'); |
| generateBody(params); |
| buf.writeln('</body>'); |
| buf.writeln('</html>'); |
| } |
| } |
