| // Copyright (c) 2015, 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:async'; |
| import 'dart:html'; |
| import 'package:logging/logging.dart'; |
| import 'package:observatory/models.dart' as M; |
| import 'package:observatory/src/elements/helpers/rendering_scheduler.dart'; |
| import 'package:observatory/src/elements/helpers/custom_element.dart'; |
| import 'package:observatory/utils.dart'; |
| |
| class LoggingListElement extends CustomElement implements Renderable { |
| late RenderingScheduler<LoggingListElement> _r; |
| |
| Stream<RenderedEvent<LoggingListElement>> get onRendered => _r.onRendered; |
| |
| late M.IsolateRef _isolate; |
| late M.EventRepository _events; |
| late StreamSubscription _subscription; |
| Level _level = Level.ALL; |
| final _logs = <Map>[]; |
| |
| M.IsolateRef get isolate => _isolate; |
| Level get level => _level; |
| |
| set level(Level value) => _level = _r.checkAndReact(_level, value); |
| |
| factory LoggingListElement(M.IsolateRef isolate, M.EventRepository events, |
| {RenderingQueue? queue}) { |
| assert(isolate != null); |
| assert(events != null); |
| LoggingListElement e = new LoggingListElement.created(); |
| e._r = new RenderingScheduler<LoggingListElement>(e, queue: queue); |
| e._isolate = isolate; |
| e._events = events; |
| return e; |
| } |
| |
| LoggingListElement.created() : super.created('logging-list'); |
| |
| @override |
| attached() { |
| super.attached(); |
| _r.enable(); |
| _subscription = _events.onLoggingEvent.listen((e) { |
| if (e.isolate.id == _isolate.id) { |
| _logs.add(e.logRecord); |
| if (_shouldBeVisible(_logs.last)) { |
| _r.dirty(); |
| } |
| } |
| }); |
| } |
| |
| @override |
| detached() { |
| super.detached(); |
| _r.disable(notify: true); |
| children = <Element>[]; |
| _subscription.cancel(); |
| } |
| |
| void render() { |
| children = _logs |
| .where(_shouldBeVisible) |
| .map<Element>((logRecord) => new DivElement() |
| ..classes = ['logItem', logRecord['level'].name] |
| ..children = <Element>[ |
| new SpanElement() |
| ..classes = ['level'] |
| ..text = logRecord['level'].name, |
| new SpanElement() |
| ..classes = ['time'] |
| ..text = Utils.formatDateTime(logRecord['time']), |
| new SpanElement() |
| ..classes = ['message'] |
| ..text = logRecord["message"].valueAsString |
| ]) |
| .toList(); |
| } |
| |
| bool _shouldBeVisible(Map record) => _level.compareTo(record['level']) <= 0; |
| } |