| // 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/models.dart' as M; |
| import 'package:observatory/src/elements/curly_block.dart'; |
| import 'package:observatory/src/elements/instance_ref.dart'; |
| import 'package:observatory/src/elements/helpers/any_ref.dart'; |
| import 'package:observatory/src/elements/helpers/rendering_scheduler.dart'; |
| import 'package:observatory/src/elements/helpers/tag.dart'; |
| import 'package:observatory/utils.dart'; |
| |
| class TopRetainingInstancesElement extends HtmlElement implements Renderable { |
| static const tag = const Tag<TopRetainingInstancesElement>( |
| 'top-retainig-instances', |
| dependencies: const [CurlyBlockElement.tag, InstanceRefElement.tag]); |
| |
| RenderingScheduler<TopRetainingInstancesElement> _r; |
| |
| Stream<RenderedEvent<TopRetainingInstancesElement>> get onRendered => |
| _r.onRendered; |
| |
| M.IsolateRef _isolate; |
| M.ClassRef _cls; |
| M.TopRetainingInstancesRepository _topRetainingInstances; |
| M.ObjectRepository _objects; |
| Iterable<M.RetainingObject> _topRetaining; |
| bool _expanded = false; |
| |
| M.IsolateRef get isolate => _isolate; |
| M.ClassRef get cls => _cls; |
| |
| factory TopRetainingInstancesElement( |
| M.IsolateRef isolate, |
| M.ClassRef cls, |
| M.TopRetainingInstancesRepository topRetainingInstances, |
| M.ObjectRepository objects, |
| {RenderingQueue queue}) { |
| assert(isolate != null); |
| assert(cls != null); |
| assert(topRetainingInstances != null); |
| assert(objects != null); |
| TopRetainingInstancesElement e = document.createElement(tag.name); |
| e._r = |
| new RenderingScheduler<TopRetainingInstancesElement>(e, queue: queue); |
| e._isolate = isolate; |
| e._cls = cls; |
| e._topRetainingInstances = topRetainingInstances; |
| e._objects = objects; |
| return e; |
| } |
| |
| TopRetainingInstancesElement.created() : super.created(); |
| |
| @override |
| void attached() { |
| super.attached(); |
| _r.enable(); |
| } |
| |
| @override |
| void detached() { |
| super.detached(); |
| children = <Element>[]; |
| _r.disable(notify: true); |
| } |
| |
| void render() { |
| children = <Element>[ |
| new CurlyBlockElement(expanded: _expanded, queue: _r.queue) |
| ..content = <Element>[ |
| new DivElement() |
| ..classes = ['memberList'] |
| ..children = _createContent() |
| ] |
| ..onToggle.listen((e) async { |
| _expanded = e.control.expanded; |
| if (_expanded) { |
| e.control.disabled = true; |
| await _refresh(); |
| e.control.disabled = false; |
| } |
| }) |
| ]; |
| } |
| |
| Future _refresh() async { |
| _topRetaining = null; |
| _topRetaining = await _topRetainingInstances.get(_isolate, _cls); |
| _r.dirty(); |
| } |
| |
| List<Element> _createContent() { |
| if (_topRetaining == null) { |
| return [new SpanElement()..text = 'Loading...']; |
| } |
| return _topRetaining |
| .map<Element>((r) => new DivElement() |
| ..classes = ['memberItem'] |
| ..children = <Element>[ |
| new DivElement() |
| ..classes = ['memberName'] |
| ..text = '${Utils.formatSize(r.retainedSize)} ', |
| new DivElement() |
| ..classes = ['memberValue'] |
| ..children = <Element>[ |
| anyRef(_isolate, r.object, _objects, queue: _r.queue) |
| ] |
| ]) |
| .toList(); |
| } |
| } |