| // 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'; |
| |
| class InboundReferencesElement extends HtmlElement implements Renderable { |
| static const tag = const Tag<InboundReferencesElement>('inbound-references', |
| dependencies: const [CurlyBlockElement.tag, InstanceRefElement.tag]); |
| |
| RenderingScheduler<InboundReferencesElement> _r; |
| |
| Stream<RenderedEvent<InboundReferencesElement>> get onRendered => |
| _r.onRendered; |
| |
| M.IsolateRef _isolate; |
| M.ObjectRef _object; |
| M.InboundReferencesRepository _references; |
| M.ObjectRepository _objects; |
| M.InboundReferences _inbounds; |
| bool _expanded = false; |
| |
| M.IsolateRef get isolate => _isolate; |
| M.ObjectRef get object => _object; |
| |
| factory InboundReferencesElement(M.IsolateRef isolate, M.ObjectRef object, |
| M.InboundReferencesRepository references, M.ObjectRepository objects, |
| {RenderingQueue queue}) { |
| assert(isolate != null); |
| assert(object != null); |
| assert(references != null); |
| assert(objects != null); |
| InboundReferencesElement e = document.createElement(tag.name); |
| e._r = new RenderingScheduler<InboundReferencesElement>(e, queue: queue); |
| e._isolate = isolate; |
| e._object = object; |
| e._references = references; |
| e._objects = objects; |
| return e; |
| } |
| |
| InboundReferencesElement.created() : super.created(); |
| |
| @override |
| void attached() { |
| super.attached(); |
| _r.enable(); |
| } |
| |
| @override |
| void detached() { |
| super.detached(); |
| children = <Element>[]; |
| _r.disable(notify: true); |
| } |
| |
| void render() { |
| final curlyBlock = |
| new CurlyBlockElement(expanded: _expanded, queue: _r.queue) |
| ..content = _createContent() |
| ..onToggle.listen((e) async { |
| _expanded = e.control.expanded; |
| if (_expanded) { |
| e.control.disabled = true; |
| await _refresh(); |
| e.control.disabled = false; |
| } |
| }); |
| children = <Element>[curlyBlock]; |
| _r.waitFor([curlyBlock.onRendered.first]); |
| } |
| |
| Future _refresh() async { |
| _inbounds = await _references.get(_isolate, _object.id); |
| _r.dirty(); |
| } |
| |
| List<Element> _createContent() { |
| if (_inbounds == null) { |
| return const []; |
| } |
| return _inbounds.elements.map<Element>(_createItem).toList(); |
| } |
| |
| Element _createItem(M.InboundReference reference) { |
| final content = <Element>[]; |
| |
| if (reference.parentField != null) { |
| content.addAll([ |
| new SpanElement()..text = 'referenced by ', |
| anyRef(_isolate, reference.parentField, _objects, queue: _r.queue), |
| new SpanElement()..text = ' of ' |
| ]); |
| } else if (reference.parentListIndex != null) { |
| content.add(new SpanElement() |
| ..text = 'referenced by [ ${reference.parentListIndex} ] of '); |
| } else if (reference.parentWordOffset != null) { |
| content.add(new SpanElement() |
| ..text = 'referenced by offset ${reference.parentWordOffset} of '); |
| } |
| |
| content.addAll([ |
| anyRef(_isolate, reference.source, _objects, queue: _r.queue), |
| new InboundReferencesElement( |
| _isolate, reference.source, _references, _objects, |
| queue: _r.queue) |
| ]); |
| |
| return new DivElement() |
| ..classes = ['indent'] |
| ..children = content; |
| } |
| } |