| // 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 'dart:async'; |
| import 'package:observatory/src/elements/helpers/rendering_scheduler.dart'; |
| import 'package:observatory/src/elements/helpers/tag.dart'; |
| import 'package:observatory/src/elements/helpers/uris.dart'; |
| import 'package:observatory/models.dart' show ConnectionException; |
| |
| class ExceptionDeleteEvent { |
| final dynamic exception; |
| final StackTrace stacktrace; |
| |
| ExceptionDeleteEvent(this.exception, {this.stacktrace}); |
| } |
| |
| class NavNotifyExceptionElement extends HtmlElement implements Renderable { |
| static const tag = const Tag<NavNotifyExceptionElement>('nav-exception'); |
| |
| RenderingScheduler _r; |
| |
| Stream<RenderedEvent<NavNotifyExceptionElement>> get onRendered => |
| _r.onRendered; |
| |
| final StreamController<ExceptionDeleteEvent> _onDelete = |
| new StreamController<ExceptionDeleteEvent>.broadcast(); |
| Stream<ExceptionDeleteEvent> get onDelete => _onDelete.stream; |
| |
| dynamic _exception; |
| StackTrace _stacktrace; |
| |
| dynamic get exception => _exception; |
| StackTrace get stacktrace => _stacktrace; |
| |
| factory NavNotifyExceptionElement(dynamic exception, |
| {StackTrace stacktrace: null, RenderingQueue queue}) { |
| assert(exception != null); |
| NavNotifyExceptionElement e = document.createElement(tag.name); |
| e._r = new RenderingScheduler<NavNotifyExceptionElement>(e, queue: queue); |
| e._exception = exception; |
| e._stacktrace = stacktrace; |
| return e; |
| } |
| |
| NavNotifyExceptionElement.created() : super.created(); |
| |
| @override |
| void attached() { |
| super.attached(); |
| _r.enable(); |
| } |
| |
| @override |
| void detached() { |
| super.detached(); |
| children = <Element>[]; |
| _r.disable(notify: true); |
| } |
| |
| void render() { |
| if (exception is ConnectionException) { |
| renderConnectionException(); |
| } else { |
| renderGenericException(); |
| } |
| } |
| |
| void renderConnectionException() { |
| children = <Element>[ |
| new DivElement() |
| ..children = <Element>[ |
| new SpanElement() |
| ..text = 'The request cannot be completed because the ' |
| 'VM is currently disconnected', |
| new BRElement(), |
| new BRElement(), |
| new SpanElement()..text = '[', |
| new AnchorElement(href: Uris.vmConnect()) |
| ..text = 'Connect to a different VM', |
| new SpanElement()..text = ']', |
| new ButtonElement() |
| ..innerHtml = '×' |
| ..onClick.map(_toEvent).listen(_delete) |
| ] |
| ]; |
| } |
| |
| void renderGenericException() { |
| List<Element> content; |
| content = <Element>[ |
| new SpanElement()..text = 'Unexpected exception:', |
| new BRElement(), |
| new BRElement(), |
| new DivElement()..text = exception.toString(), |
| new BRElement() |
| ]; |
| if (stacktrace != null) { |
| content.addAll(<Element>[ |
| new SpanElement()..text = 'StackTrace:', |
| new BRElement(), |
| new BRElement(), |
| new DivElement()..text = stacktrace.toString(), |
| new BRElement() |
| ]); |
| } |
| content.addAll(<Element>[ |
| new SpanElement()..text = '[', |
| new AnchorElement(href: Uris.vmConnect()) |
| ..text = 'Connect to a different VM', |
| new SpanElement()..text = ']', |
| new ButtonElement() |
| ..innerHtml = '×' |
| ..onClick.map(_toEvent).listen(_delete) |
| ]); |
| children = <Element>[new DivElement()..children = content]; |
| } |
| |
| ExceptionDeleteEvent _toEvent(_) { |
| return new ExceptionDeleteEvent(exception, stacktrace: stacktrace); |
| } |
| |
| void _delete(ExceptionDeleteEvent e) { |
| _onDelete.add(e); |
| } |
| |
| void delete() { |
| _onDelete.add(new ExceptionDeleteEvent(exception, stacktrace: stacktrace)); |
| } |
| } |