Converted Observatory vm-view && isolate-view elements

runtime/observatory/lib/src/elements/isolate/run_state.dart

+// 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/helpers/rendering_scheduler.dart';
+import 'package:observatory/src/elements/helpers/tag.dart';
+
+class IsolateRunStateElement extends HtmlElement implements Renderable {
+  static const tag = const Tag<IsolateRunStateElement>('isolate-run-state');
+
+  RenderingScheduler<IsolateRunStateElement> _r;
+
+  Stream<RenderedEvent<IsolateRunStateElement>> get onRendered =>
+      _r.onRendered;
+
+  M.Isolate _isolate;
+  M.EventRepository _events;
+  StreamSubscription _debugSubscription;
+  StreamSubscription _isolateSubscription;
+
+  factory IsolateRunStateElement(M.Isolate isolate,
+                                        M.EventRepository events,
+                                        {RenderingQueue queue}) {
+    assert(isolate != null);
+    assert(events != null);
+    IsolateRunStateElement e = document.createElement(tag.name);
+    e._r = new RenderingScheduler(e, queue: queue);
+    e._isolate = isolate;
+    e._events = events;
+    return e;
+  }
+
+  IsolateRunStateElement.created() : super.created();
+
+  @override
+  void attached() {
+    super.attached();
+    _r.enable();
+    _debugSubscription = _events.onDebugEvent.listen(_eventListener);
+    _isolateSubscription = _events.onIsolateEvent.listen(_eventListener);
+  }
+
+  @override
+  void detached() {
+    super.detached();
+    children = [];
+    _r.disable(notify: true);
+    _debugSubscription.cancel();
+    _isolateSubscription.cancel();
+  }
+
+  void render() {
+    switch (_isolate.status) {
+      case M.IsolateStatus.loading:
+        children = [new SpanElement()..text = 'loading... '];
+        break;
+      case M.IsolateStatus.running:
+        children = [new SpanElement()..text = 'running '];
+        break;
+      case M.IsolateStatus.idle:
+        children = [new SpanElement()..text = 'idle '];
+        break;
+      case M.IsolateStatus.paused:
+        children = [
+          new SpanElement()
+            ..title = '${_isolate.pauseEvent.timestamp}'
+            ..text = 'paused '
+        ];
+        break;
+    }
+  }
+
+  void _eventListener(e) {
+    if (e.isolate.id == _isolate.id) {
+      _isolate = e.isolate;
+      _r.dirty();
+    }
+  }
+}