Converted Observatory object-common element

runtime/observatory/lib/src/elements/object_common.dart

 // Copyright (c) 2013, 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.
 
-library object_common_element;
-
+import 'dart:html';
 import 'dart:async';
-import 'observatory_element.dart';
-import 'package:observatory/service.dart';
-import 'package:polymer/polymer.dart';
-
-@CustomTag('object-common')
-class ObjectCommonElement extends ObservatoryElement {
-  @published ServiceObject object;
-  @published ServiceMap path;
-  @published ServiceMap inboundReferences;
-  @observable int retainedBytes = null;
-  @observable int reachableBytes = null;
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/class_ref.dart';
+import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
+import 'package:observatory/src/elements/helpers/tag.dart';
+import 'package:observatory/src/elements/inbound_references.dart';
+import 'package:observatory/src/elements/retaining_path.dart';
+import 'package:observatory/src/elements/sentinel_value.dart';
+import 'package:observatory/utils.dart';
+
+class ObjectCommonElement extends HtmlElement implements Renderable {
+  static const tag = const Tag<ObjectCommonElement>('object-common-wrapped',
+      dependencies: const [
+        ClassRefElement.tag,
+        InboundReferencesElement.tag,
+        RetainingPathElement.tag,
+        SentinelValueElement.tag
+      ]);
+
+  RenderingScheduler<ObjectCommonElement> _r;
+
+  Stream<RenderedEvent<ObjectCommonElement>> get onRendered => _r.onRendered;
+
+  M.IsolateRef _isolate;
+  M.Object _object;
+  M.RetainedSizeRepository _retainedSizes;
+  M.ReachableSizeRepository _reachableSizes;
+  M.InboundReferencesRepository _references;
+  M.RetainingPathRepository _retainingPaths;
+  M.InstanceRepository _instances;
+  M.Guarded<M.Instance> _retainedSize = null;
+  bool _loadingRetainedBytes = false;
+  M.Guarded<M.Instance> _reachableSize = null;
+  bool _loadingReachableBytes = false;
+
+  M.IsolateRef get isolate => _isolate;
+  M.Object get object => _object;
+
+  factory ObjectCommonElement(M.IsolateRef isolate, M.Object object,
+                              M.RetainedSizeRepository retainedSizes,
+                              M.ReachableSizeRepository reachableSizes,
+                              M.InboundReferencesRepository references,
+                              M.RetainingPathRepository retainingPaths,
+                              M.InstanceRepository instances,
+                              {RenderingQueue queue}) {
+    assert(isolate != null);
+    assert(object != null);
+    assert(retainedSizes != null);
+    assert(reachableSizes != null);
+    assert(references != null);
+    assert(retainingPaths != null);
+    assert(instances != null);
+    ObjectCommonElement e = document.createElement(tag.name);
+    e._r = new RenderingScheduler(e, queue: queue);
+    e._isolate = isolate;
+    e._object = object;
+    e._retainedSizes = retainedSizes;
+    e._reachableSizes = reachableSizes;
+    e._references = references;
+    e._instances = instances;
+    e._retainingPaths = retainingPaths;
+    return e;
+  }
 
   ObjectCommonElement.created() : super.created();
 
-  // TODO(koda): Add no-arg "calculate-link" instead of reusing "eval-link".
-  Future<ServiceObject> reachableSize(var dummy) {
-    return object.isolate.getReachableSize(object).then((Instance obj) {
-      // TODO(turnidge): Handle collected/expired objects gracefully.
-      reachableBytes = int.parse(obj.valueAsString);
-    });
-  }
-
-  Future<ServiceObject> retainedSize(var dummy) {
-    return object.isolate.getRetainedSize(object).then((Instance obj) {
-      // TODO(turnidge): Handle collected/expired objects gracefully.
-      retainedBytes = int.parse(obj.valueAsString);
-    });
-  }
-
-  Future<ServiceObject> retainingPath(var limit) {
-    return object.isolate.getRetainingPath(object, limit).then((ServiceObject obj) {
-      path = obj;
-    });
-  }
-
-  Future<ServiceObject> fetchInboundReferences(var limit) {
-    return object.isolate.getInboundReferences(object, limit)
-        .then((ServiceObject obj) {
-           inboundReferences = obj;
-        });
-  }
-
-  Future refresh() {
-    return object.reload();
+  @override
+  void attached() {
+    super.attached();
+    _r.enable();
+  }
+
+  @override
+  void detached() {
+    super.detached();
+    _r.disable(notify: true);
+    children = [];
+  }
+
+  RetainingPathElement _path;
+  InboundReferencesElement _inbounds;
+
+  void render() {
+    _path = _path ?? new RetainingPathElement(_isolate, _object,
+                                              _retainingPaths, _instances,
+                                              queue: _r.queue);
+    _inbounds = _inbounds ?? new InboundReferencesElement(_isolate, _object,
+                                                          _references,
+                                                          _instances,
+                                                          queue: _r.queue);
+    children = [
+      new DivElement()..classes = const ['memberList']
+        ..children = [
+          new DivElement()..classes = const ['memberItem']
+            ..children = [
+              new DivElement()..classes = const ['memberName']
+                ..text = 'Class ',
+              new DivElement()..classes = const ['memberValue']
+                ..children = [
+                  new ClassRefElement(_isolate, _object.clazz, queue: _r.queue)
+                ]
+            ],
+          new DivElement()..classes = const ['memberItem']
+            ..title = 'Space for this object in memory'
+            ..children = [
+              new DivElement()..classes = const ['memberName']
+                ..text = 'Shallow size ',
+              new DivElement()..classes = const ['memberValue']
+                ..text = Utils.formatSize(_object.size)
+            ],
+          new DivElement()..classes = const ['memberItem']
+            ..title = 'Space reachable from this object, '
+                      'excluding class references'
+            ..children = [
+              new DivElement()..classes = const ['memberName']
+                ..text = 'Reachable size ',
+              new DivElement()..classes = const ['memberValue']
+                ..children = _createReachableSizeValue()
+            ],
+          new DivElement()..classes = const ['memberItem']
+            ..title = 'Space that would be reclaimed if references to this '
+                      'object were replaced with null'
+            ..children = [
+              new DivElement()..classes = const ['memberName']
+                ..text = 'Retained size ',
+              new DivElement()..classes = const ['memberValue']
+                ..children = _createRetainedSizeValue()
+            ],
+          new DivElement()..classes = const ['memberItem']
+            ..children = [
+              new DivElement()..classes = const ['memberName']
+                ..text = 'Retaining path ',
+              new DivElement()..classes = const ['memberValue']
+                ..children = [_path]
+            ],
+          new DivElement()..classes = const ['memberItem']
+            ..title = 'Objects which directly reference this object'
+            ..children = [
+              new DivElement()..classes = const ['memberName']
+                ..text = 'Inbound references ',
+              new DivElement()..classes = const ['memberValue']
+                ..children = [_inbounds]
+            ]
+        ]
+    ];
+  }
+
+  List<Element> _createReachableSizeValue() {
+    final content = <Element>[];
+    if (_reachableSize != null) {
+      if (_reachableSize.isSentinel) {
+        content.add(
+          new SentinelValueElement(_reachableSize.asSentinel, queue: _r.queue)
+        );
+      } else {
+        content.add(
+          new SpanElement()..text = Utils.formatSize(int.parse(
+              _reachableSize.asValue.valueAsString))
+        );
+      }
+    } else {
+      content.add(
+        new SpanElement()..text = '...'
+      );
+    }
+    final button = new ButtonElement()..classes = ['reachable_size']
+      ..disabled = _loadingReachableBytes
+      ..text = '↺';
+    button.onClick.listen((_) async {
+        button.disabled = true;
+        _loadingReachableBytes = true;
+        _reachableSize = await _reachableSizes.get(_isolate, _object.id);
+        _r.dirty();
+      });
+    content.add(button);
+    return content;
+  }
+
+  List<Element> _createRetainedSizeValue() {
+    final content = <Element>[];
+    if (_retainedSize != null) {
+      if (_retainedSize.isSentinel) {
+        content.add(
+          new SentinelValueElement(_retainedSize.asSentinel, queue: _r.queue)
+        );
+      } else {
+        content.add(
+          new SpanElement()..text = Utils.formatSize(int.parse(
+              _retainedSize.asValue.valueAsString))
+        );
+      }
+    } else {
+      content.add(
+        new SpanElement()..text = '...'
+      );
+    }
+    final button = new ButtonElement()..classes = ['retained_size']
+      ..disabled = _loadingRetainedBytes
+      ..text = '↺';
+    button.onClick.listen((_) async {
+        button.disabled = true;
+        _loadingRetainedBytes = true;
+        _retainedSize = await _retainedSizes.get(_isolate, _object.id);
+        _r.dirty();
+      });
+    content.add(button);
+    return content;
   }
 }