| // Copyright (c) 2016, 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 'dart:html'; |
| |
| import 'package:observatory/app.dart'; |
| import 'package:observatory/src/elements/helpers/tag.dart'; |
| import 'package:observatory/src/elements/shims/binding.dart'; |
| import 'package:observatory/src/elements/nav/menu.dart'; |
| |
| @bindable |
| class NavMenuElementWrapper extends HtmlElement { |
| static const binder = const Binder<NavMenuElementWrapper>(const { |
| 'anchor': #anchor, 'link': #link, 'last': #last |
| }); |
| |
| static const tag = |
| const Tag<NavMenuElementWrapper>('nav-menu'); |
| |
| String _anchor = '---'; |
| String _link; |
| bool _last = false; |
| String get anchor => _anchor; |
| String get link => _link; |
| bool get last => _last; |
| set anchor(String value) { |
| _anchor = value; render(); |
| } |
| set link(String value) { |
| _link = value; render(); |
| } |
| set last(bool value) { |
| _last = value; render(); |
| } |
| |
| NavMenuElementWrapper.created() : super.created() { |
| binder.registerCallback(this); |
| _anchor = getAttribute('anchor'); |
| _link = getAttribute('link'); |
| _last = _getBoolAttribute('last'); |
| createShadowRoot(); |
| render(); |
| } |
| |
| @override |
| void attached() { |
| super.attached(); |
| render(); |
| } |
| |
| void render() { |
| shadowRoot.children = []; |
| if (_anchor == null || _last == null) return; |
| |
| shadowRoot.children = [ |
| new NavMenuElement(_anchor, link: '#$_link', last: last, |
| queue: ObservatoryApplication.app.queue) |
| ..children = [new ContentElement()] |
| ]; |
| } |
| |
| bool _getBoolAttribute(String name) { |
| final String value = getAttribute(name); |
| return !(value == null || value == 'false'); |
| } |
| } |