Converted Observatory instance-view element

runtime/observatory/lib/src/elements/instance_view.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 instance_view_element;
 
 import 'dart:async';
-import 'observatory_element.dart';
-import 'package:observatory/service.dart';
-import 'package:polymer/polymer.dart';
-
-@CustomTag('instance-view')
-class InstanceViewElement extends ObservatoryElement {
-  @published Instance instance;
+import 'dart:html';
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/class_ref.dart';
+import 'package:observatory/src/elements/context_ref.dart';
+import 'package:observatory/src/elements/curly_block.dart';
+import 'package:observatory/src/elements/eval_box.dart';
+import 'package:observatory/src/elements/field_ref.dart';
+import 'package:observatory/src/elements/function_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/src/elements/instance_ref.dart';
+import 'package:observatory/src/elements/nav/bar.dart';
+import 'package:observatory/src/elements/nav/class_menu.dart';
+import 'package:observatory/src/elements/nav/isolate_menu.dart';
+import 'package:observatory/src/elements/nav/library_menu.dart';
+import 'package:observatory/src/elements/nav/menu.dart';
+import 'package:observatory/src/elements/nav/notify.dart';
+import 'package:observatory/src/elements/nav/refresh.dart';
+import 'package:observatory/src/elements/nav/top_menu.dart';
+import 'package:observatory/src/elements/nav/vm_menu.dart';
+import 'package:observatory/src/elements/object_common.dart';
+import 'package:observatory/src/elements/source_inset.dart';
+import 'package:observatory/src/elements/source_link.dart';
+import 'package:observatory/src/elements/view_footer.dart';
+import 'package:observatory/utils.dart';
+
+class InstanceViewElement extends HtmlElement implements Renderable {
+  static const tag = const Tag<InstanceViewElement>('instance-view',
+                                            dependencies: const [
+                                              ClassRefElement.tag,
+                                              ContextRefElement.tag,
+                                              CurlyBlockElement.tag,
+                                              FieldRefElement.tag,
+                                              FunctionRefElement.tag,
+                                              InstanceRefElement.tag,
+                                              NavBarElement.tag,
+                                              NavClassMenuElement.tag,
+                                              NavLibraryMenuElement.tag,
+                                              NavTopMenuElement.tag,
+                                              NavVMMenuElement.tag,
+                                              NavIsolateMenuElement.tag,
+                                              NavMenuElement.tag,
+                                              NavRefreshElement.tag,
+                                              NavNotifyElement.tag,
+                                              ObjectCommonElement.tag,
+                                              SourceInsetElement.tag,
+                                              SourceLinkElement.tag,
+                                              ViewFooterElement.tag
+                                            ]);
+
+  RenderingScheduler<InstanceViewElement> _r;
+
+  Stream<RenderedEvent<InstanceViewElement>> get onRendered => _r.onRendered;
+
+  M.VM _vm;
+  M.IsolateRef _isolate;
+  M.EventRepository _events;
+  M.NotificationRepository _notifications;
+  M.Instance _instance;
+  M.LibraryRef _library;
+  M.InstanceRepository _instances;
+  M.ClassRepository _classes;
+  M.RetainedSizeRepository _retainedSizes;
+  M.ReachableSizeRepository _reachableSizes;
+  M.InboundReferencesRepository _references;
+  M.RetainingPathRepository _retainingPaths;
+  M.ScriptRepository _scripts;
+  M.EvalRepository _eval;
+  M.TypeArguments _typeArguments;
+  M.TypeArgumentsRepository _arguments;
+  M.BreakpointRepository _breakpoints;
+  M.FunctionRepository _functions;
+  M.SourceLocation _location;
+
+
+  M.VMRef get vm => _vm;
+  M.IsolateRef get isolate => _isolate;
+  M.NotificationRepository get notifications => _notifications;
+  M.Instance get instance => _instance;
+
+  factory InstanceViewElement(M.VM vm, M.IsolateRef isolate,
+                              M.Instance instance,
+                              M.EventRepository events,
+                              M.NotificationRepository notifications,
+                              M.InstanceRepository instances,
+                              M.ClassRepository classes,
+                              M.RetainedSizeRepository retainedSizes,
+                              M.ReachableSizeRepository reachableSizes,
+                              M.InboundReferencesRepository references,
+                              M.RetainingPathRepository retainingPaths,
+                              M.ScriptRepository scripts,
+                              M.EvalRepository eval,
+                              M.TypeArgumentsRepository arguments,
+                              M.BreakpointRepository breakpoints,
+                              M.FunctionRepository functions,
+                              {RenderingQueue queue}) {
+    assert(vm != null);
+    assert(isolate != null);
+    assert(events != null);
+    assert(notifications != null);
+    assert(instance != null);
+    assert(instances != null);
+    assert(classes != null);
+    assert(retainedSizes != null);
+    assert(reachableSizes != null);
+    assert(references != null);
+    assert(retainingPaths != null);
+    assert(scripts != null);
+    assert(eval != null);
+    assert(arguments != null);
+    assert(breakpoints != null);
+    assert(functions != null);
+    InstanceViewElement e = document.createElement(tag.name);
+    e._r = new RenderingScheduler(e, queue: queue);
+    e._vm = vm;
+    e._isolate = isolate;
+    e._events = events;
+    e._notifications = notifications;
+    e._instance = instance;
+    e._instances = instances;
+    e._classes = classes;
+    e._retainedSizes = retainedSizes;
+    e._reachableSizes = reachableSizes;
+    e._references = references;
+    e._retainingPaths = retainingPaths;
+    e._scripts = scripts;
+    e._eval = eval;
+    e._arguments = arguments;
+    e._breakpoints = breakpoints;
+    e._functions = functions;
+    return e;
+  }
 
   InstanceViewElement.created() : super.created();
 
-  instanceChanged(oldValue) {
-    if (instance != null) {
-      // We load typeClass and typeArguments because we want to
-      // display this info.
-      if (instance.typeClass != null) {
-        instance.typeClass.load();
+  @override
+  attached() {
+    super.attached();
+    _r.enable();
+    _loadExtraData();
+  }
+
+  @override
+  detached() {
+    super.detached();
+    _r.disable(notify: true);
+    children = [];
+  }
+
+  void render() {
+    final content = [
+      new HeadingElement.h2()..text = M.isAbstractType(_instance.kind)
+        ? 'type ${_instance.name}'
+        : 'instance of ${_instance.clazz.name}',
+      new HRElement(),
+      new ObjectCommonElement(_isolate, _instance, _retainedSizes,
+                              _reachableSizes, _references, _retainingPaths,
+                              _instances, queue: _r.queue),
+      new BRElement(),
+      new DivElement()..classes = const ['memberList']
+        ..children = _createMembers(),
+      new HRElement(),
+      new EvalBoxElement(_isolate, _instance, _instances, _eval,
+                         quickExpressions: const ['toString()',
+                                                  'runtimeType'],
+                         queue: _r.queue)
+    ];
+    if (_location != null) {
+      content.addAll([
+        new HRElement(),
+        new SourceInsetElement(_isolate, _location, _scripts, _instances,
+                               _events, queue: _r.queue)
+      ]);
+    }
+    content.addAll([
+      new HRElement(),
+      new ViewFooterElement(queue: _r.queue)
+    ]);
+    children = [
+      new NavBarElement(queue: _r.queue)
+        ..children = _createMenu(),
+      new DivElement()..classes = const ['content-centered-big']
+        ..children = content
+      ];
+  }
+
+  List<Element> _createMenu() {
+    final menu = [
+      new NavTopMenuElement(queue: _r.queue),
+      new NavVMMenuElement(_vm, _events, queue: _r.queue),
+      new NavIsolateMenuElement(_isolate, _events, queue: _r.queue)
+    ];
+    if (_library != null) {
+      menu.add(new NavLibraryMenuElement(_isolate, _library,
+                                         queue: _r.queue));
+    }
+    menu.addAll([
+      new NavClassMenuElement(_isolate, _instance.clazz, queue: _r.queue),
+      new NavMenuElement('instance', last: true, queue: _r.queue),
+      new NavRefreshElement(queue: _r.queue)
+          ..onRefresh.listen((e) {
+            e.element.disabled = true;
+            _refresh();
+          }),
+      new NavNotifyElement(_notifications, queue: _r.queue)
+    ]);
+    return menu;
+  }
+
+  List<Element> _createMembers() {
+    final members = <Element>[];
+    if (_instance.valueAsString != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = _instance.kind == M.InstanceKind.string
+              ? 'value as literal'
+              : 'value',
+          new DivElement()..classes = const ['memberValue']
+            ..text = _instance.kind == M.InstanceKind.string
+              ? Utils.formatStringAsLiteral(_instance.valueAsString,
+                  _instance.valueAsStringIsTruncated)
+              : _instance.valueAsString
+        ]);
+    }
+    if (_instance.typeClass != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'type class',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new ClassRefElement(_isolate, _instance.typeClass,
+                                  queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_typeArguments != null && _typeArguments.types.isNotEmpty) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'type arguments',
+          new DivElement()..classes = const ['memberValue']
+            ..children = ([
+              new SpanElement()..text = '< '
+            ]
+            ..addAll(_typeArguments.types.expand((type) => [
+                new InstanceRefElement(_isolate, type, _instances, queue:
+                                       _r.queue),
+                new SpanElement()..text = ', '
+              ]))
+            ..removeLast()
+            ..add(new SpanElement()..text = ' >'))
+        ]);
+    }
+    if (_instance.parameterizedClass != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'parameterized class',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new ClassRefElement(_isolate, _instance.parameterizedClass,
+                                  queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_instance.parameterIndex != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'parameter index',
+          new DivElement()..classes = const ['memberValue']
+            ..text = '${_instance.parameterIndex}'
+        ]);
+    }
+    if (_instance.targetType != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'target type',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new InstanceRefElement(_isolate, _instance.targetType, _instances,
+                                     queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_instance.bound != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'bound',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new InstanceRefElement(_isolate, _instance.bound, _instances,
+                                     queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_instance.closureFunction != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'closure function',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new FunctionRefElement(_isolate, _instance.closureFunction,
+                                     queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_instance.closureContext != null) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'closure context',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new ContextRefElement(_isolate, _instance.closureContext,
+                                     queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_instance.kind == M.InstanceKind.closure) {
+      ButtonElement btn;
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'closure breakpoint',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              btn = new ButtonElement()
+                ..text = _instance.activationBreakpoint == null
+                  ? 'break on activation'
+                  : 'remove'
+                ..onClick.listen((_) {
+                  btn.disabled = true;
+                  _toggleBreakpoint();
+                })
+            ]
+        ]);
+    }
+
+    if (_instance.nativeFields != null && _instance.nativeFields.isNotEmpty) {
+      int i = 0;
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'native fields (${_instance.nativeFields.length})',
+          new DivElement()..classes = const ['memberName']
+            ..children = [
+              new CurlyBlockElement(
+                  expanded: _instance.nativeFields.length <= 100,
+                  queue: _r.queue)
+                ..children = [
+                   new DivElement()..classes = const ['memberList']
+                    ..children = _instance.nativeFields.map((f) =>
+                      new DivElement()..classes = const ['memberItem']
+                        ..children = [
+                          new DivElement()..classes = const ['memberName']
+                            ..text = '[ ${i++} ]',
+                          new DivElement()..classes = const ['memberValue']
+                            ..text = '[ ${f.value} ]'
+                        ]).toList()
+                ]
+            ]
+        ]);
+    }
+
+    if (_instance.fields != null && _instance.fields.isNotEmpty) {
+      final fields = _instance.fields.toList();
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'fields (${fields.length})',
+          new DivElement()..classes = const ['memberName']
+            ..children = [
+              new CurlyBlockElement(
+                  expanded: fields.length <= 100,
+                  queue: _r.queue)
+                ..children = [
+                  new DivElement()..classes = const ['memberList']
+                    ..children = fields.map((f) =>
+                      new DivElement()..classes = const ['memberItem']
+                        ..children = [
+                          new DivElement()..classes = const ['memberName']
+                            ..children = [
+                              new FieldRefElement(_isolate, f.decl, _instances,
+                                  queue: _r.queue)
+                            ],
+                          new DivElement()..classes = const ['memberValue']
+                            ..children = [
+                              new SpanElement()..text = ' = ',
+                              anyRef(_isolate, f.value, _instances,
+                                     queue: _r.queue)
+                            ]
+                        ]).toList()
+                ]
+            ]
+        ]);
+    }
+
+    if (_instance.elements != null && _instance.elements.isNotEmpty) {
+      final elements = _instance.elements.toList();
+      int i = 0;
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'elements (${_instance.length})',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new CurlyBlockElement(
+                  expanded: elements.length <= 100,
+                  queue: _r.queue)
+                ..children = [
+                  new DivElement()..classes = const ['memberList']
+                    ..children = elements.map((e) =>
+                      new DivElement()..classes = const ['memberItem']
+                        ..children = [
+                          new DivElement()..classes = const ['memberName']
+                            ..text = '[ ${i++} ]',
+                          new DivElement()..classes = const ['memberValue']
+                            ..children = [
+                              anyRef(_isolate, e, _instances,
+                                     queue: _r.queue)
+                            ]
+                        ]).toList()
+                ]
+            ]
+        ]);
+      if (_instance.length != elements.length) {
+        members.add(new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = '...',
+            new DivElement()..classes = const ['memberValue']
+              ..text = '${_instance.length - elements.length} omitted elements'
+          ]);
       }
-      if (instance.typeArguments != null) {
-        instance.typeArguments.load();
+    }
+
+    if (_instance.associations != null && _instance.associations.isNotEmpty) {
+      final associations = _instance.associations.toList();
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'associations (${_instance.length})',
+          new DivElement()..classes = const ['memberName']
+            ..children = [
+              new CurlyBlockElement(
+                  expanded: associations.length <= 100,
+                  queue: _r.queue)
+                ..children = [
+                  new DivElement()..classes = const ['memberList']
+                    ..children = associations.map((a) =>
+                      new DivElement()..classes = const ['memberItem']
+                        ..children = [
+                          new DivElement()..classes = const ['memberName']
+                            ..children = [
+                              new SpanElement()..text = '[ ',
+                              anyRef(_isolate, a.key, _instances,
+                                     queue: _r.queue),
+                              new SpanElement()..text = ' ]',
+                            ],
+                          new DivElement()..classes = const ['memberValue']
+                            ..children = [
+                              anyRef(_isolate, a.value, _instances,
+                                     queue: _r.queue)
+                            ]
+                        ]).toList()
+                ]
+            ]
+        ]);
+      if (_instance.length != associations.length) {
+        members.add(new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = '...',
+            new DivElement()..classes = const ['memberValue']
+              ..text = '${_instance.length - associations.length} '
+                       'omitted elements'
+          ]);
       }
     }
-  }
-
-  Future<ServiceObject> evaluate(String expression) {
-    return instance.evaluate(expression);
-  }
-
-  Future setBreakOnActivation() {
-    return instance.isolate.addBreakOnActivation(instance)
-        .then((_) => refresh());
-  }
-
-  Future clearBreakOnActivation() {
-    return instance.isolate.removeBreakpoint(instance.activationBreakpoint)
-        .then((_) => refresh());
-  }
-
-  Future refresh() {
-    return instance.reload();
+
+    if (_instance.typedElements != null && _instance.typedElements.isNotEmpty) {
+      final typedElements = _instance.typedElements.toList();
+      int i = 0;
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'elements (${_instance.length})',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new CurlyBlockElement(
+                  expanded: typedElements.length <= 100,
+                  queue: _r.queue)
+                ..children = [
+                  new DivElement()..classes = const ['memberList']
+                    ..children = typedElements.map((e) =>
+                      new DivElement()..classes = const ['memberItem']
+                        ..children = [
+                          new DivElement()..classes = const ['memberName']
+                            ..text = '[ ${i++} ]',
+                          new DivElement()..classes = const ['memberValue']
+                            ..text = '$e'
+                        ]).toList()
+                ]
+            ]
+        ]);
+      if (_instance.length != typedElements.length) {
+        members.add(new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = '...',
+            new DivElement()..classes = const ['memberValue']
+              ..text = '${_instance.length - typedElements.length} '
+                       'omitted elements'
+          ]);
+      }
+    }
+
+    if (_instance.kind == M.InstanceKind.regExp) {
+      members.addAll([
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'pattern',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                anyRef(_isolate, _instance.pattern, _instances, queue: _r.queue)
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'isCaseSensitive',
+            new DivElement()..classes = const ['memberValue']
+              ..text = _instance.isCaseSensitive ? 'yes' : 'no'
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'isMultiLine',
+            new DivElement()..classes = const ['memberValue']
+              ..text = _instance.isMultiLine ? 'yes' : 'no'
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'oneByteFunction',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new FunctionRefElement(_isolate, _instance.oneByteFunction,
+                                       queue: _r.queue)
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'twoByteFunction',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new FunctionRefElement(_isolate, _instance.twoByteFunction,
+                                       queue: _r.queue)
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'externalOneByteFunction',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new FunctionRefElement(_isolate,
+                                       _instance.externalOneByteFunction,
+                                       queue: _r.queue)
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'externalTwoByteFunction',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new FunctionRefElement(_isolate,
+                                       _instance.externalTwoByteFunction,
+                                       queue: _r.queue)
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'oneByteBytecode',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new InstanceRefElement(_isolate, _instance.oneByteBytecode,
+                                       _instances, queue: _r.queue)
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'twoByteBytecode',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new InstanceRefElement(_isolate, _instance.twoByteBytecode,
+                                       _instances, queue: _r.queue)
+              ]
+          ]
+      ]);
+    }
+
+    if (_instance.kind == M.InstanceKind.mirrorReference) {
+      members.add(new DivElement()..classes = const ['memberItem']
+        ..children = [
+          new DivElement()..classes = const ['memberName']
+            ..text = 'referent',
+          new DivElement()..classes = const ['memberValue']
+            ..children = [
+              new ContextRefElement(_isolate, _instance.referent,
+                                     queue: _r.queue)
+            ]
+        ]);
+    }
+    if (_instance.kind == M.InstanceKind.weakProperty) {
+      members.addAll([
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'key',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new InstanceRefElement(_isolate, _instance.key, _instances,
+                                       queue: _r.queue),
+              ]
+          ],
+        new DivElement()..classes = const ['memberItem']
+          ..children = [
+            new DivElement()..classes = const ['memberName']
+              ..text = 'value',
+            new DivElement()..classes = const ['memberValue']
+              ..children = [
+                new InstanceRefElement(_isolate, _instance.value, _instances,
+                                       queue: _r.queue),
+              ]
+          ]
+      ]);
+    }
+    return members;
+  }
+
+  Future _refresh() async {
+    _instance = await _instances.get(_isolate, _instance.id);
+    await _loadExtraData();
+    _r.dirty();
+  }
+
+  Future _loadExtraData() async {
+    _library = (await _classes.get(_isolate, _instance.clazz.id)).library;
+    if (_instance.typeArguments != null) {
+      _typeArguments = await _arguments.get(_isolate,
+                                            _instance.typeArguments.id);
+    } else {
+      _typeArguments = null;
+    }
+    if (_instance.closureFunction != null) {
+      _location = (await _functions.get(_isolate,
+                                        _instance.closureFunction.id)).location;
+    } else if (_instance.typeClass != null) {
+      _location = (await _classes.get(_isolate,
+                                      _instance.typeClass.id)).location;
+    }
+    _r.dirty();
+  }
+
+  Future _toggleBreakpoint() async {
+    if (_instance.activationBreakpoint == null) {
+      await _breakpoints.addOnActivation(_isolate, _instance);
+    } else {
+      await _breakpoints.remove(_isolate, _instance.activationBreakpoint);
+    }
+    await _refresh();
   }
 }