Converted Observatory class-view element

runtime/observatory/lib/src/elements/class_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 class_view_element;
 
 import 'dart:async';
-import 'observatory_element.dart';
-import 'sample_buffer_control.dart';
-import 'stack_trace_tree_config.dart';
-import 'cpu_profile/virtual_tree.dart';
-import 'package:observatory/heap_snapshot.dart';
-import 'package:observatory/elements.dart';
+import 'dart:html';
 import 'package:observatory/models.dart' as M;
-import 'package:observatory/service.dart';
-import 'package:observatory/repositories.dart';
-import 'package:polymer/polymer.dart';
-
-@CustomTag('class-view')
-class ClassViewElement extends ObservatoryElement {
-  @published Class cls;
-  @observable ServiceMap instances;
-  @observable int reachableBytes;
-  @observable int retainedBytes;
-  @observable ObservableList mostRetained;
-  SampleBufferControlElement sampleBufferControlElement;
-  StackTraceTreeConfigElement stackTraceTreeConfigElement;
-  CpuProfileVirtualTreeElement cpuProfileTreeElement;
-  ClassSampleProfileRepository repository = new ClassSampleProfileRepository();
-
+import 'package:observatory/src/elements/class_allocation_profile.dart';
+import 'package:observatory/src/elements/class_instances.dart';
+import 'package:observatory/src/elements/class_ref.dart';
+import 'package:observatory/src/elements/curly_block.dart';
+import 'package:observatory/src/elements/error_ref.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/library_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/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';
+
+class ClassViewElement extends HtmlElement implements Renderable {
+  static const tag = const Tag<ClassViewElement>('class-view',
+                                                 dependencies: const [
+                                                   ClassInstancesElement.tag,
+                                                   ClassRefElement.tag,
+                                                   CurlyBlockElement.tag,
+                                                   ErrorRefElement.tag,
+                                                   EvalBoxElement.tag,
+                                                   FieldRefElement.tag,
+                                                   FunctionRefElement.tag,
+                                                   InstanceRefElement.tag,
+                                                   LibraryRefElement.tag,
+                                                   NavBarElement.tag,
+                                                   NavClassMenuElement.tag,
+                                                   NavTopMenuElement.tag,
+                                                   NavVMMenuElement.tag,
+                                                   NavIsolateMenuElement.tag,
+                                                   NavMenuElement.tag,
+                                                   NavRefreshElement.tag,
+                                                   NavNotifyElement.tag,
+                                                   ObjectCommonElement.tag,
+                                                   SourceInsetElement.tag,
+                                                   SourceLinkElement.tag,
+                                                   ViewFooterElement.tag
+                                                 ]);
+
+  RenderingScheduler<ClassViewElement> _r;
+
+  Stream<RenderedEvent<ClassViewElement>> get onRendered => _r.onRendered;
+
+  M.VM _vm;
+  M.IsolateRef _isolate;
+  M.EventRepository _events;
+  M.NotificationRepository _notifications;
+  M.Class _cls;
+  M.ClassRepository _classes;
+  M.RetainedSizeRepository _retainedSizes;
+  M.ReachableSizeRepository _reachableSizes;
+  M.InboundReferencesRepository _references;
+  M.RetainingPathRepository _retainingPaths;
+  M.StronglyReachableInstancesRepository _stronglyReachableInstances;
+  M.TopRetainingInstancesRepository _topRetainedInstances;
+  M.FieldRepository _fields;
+  M.ScriptRepository _scripts;
+  M.InstanceRepository _instances;
+  M.EvalRepository _eval;
+  M.ClassSampleProfileRepository _profiles;
+  Iterable<M.Field> _classFields;
+
+
+  M.VMRef get vm => _vm;
+  M.IsolateRef get isolate => _isolate;
+  M.NotificationRepository get notifications => _notifications;
+  M.Class get cls => _cls;
+
+  factory ClassViewElement(M.VM vm, M.IsolateRef isolate, M.Class cls,
+       M.EventRepository events,
+       M.NotificationRepository notifications,
+       M.ClassRepository classes,
+       M.RetainedSizeRepository retainedSizes,
+       M.ReachableSizeRepository reachableSizes,
+       M.InboundReferencesRepository references,
+       M.RetainingPathRepository retainingPaths,
+       M.FieldRepository fields,
+       M.ScriptRepository scripts,
+       M.InstanceRepository instances,
+       M.EvalRepository eval,
+       M.StronglyReachableInstancesRepository stronglyReachable,
+       M.TopRetainingInstancesRepository topRetained,
+       M.ClassSampleProfileRepository profiles,
+       {RenderingQueue queue}) {
+    assert(vm != null);
+    assert(isolate != null);
+    assert(events != null);
+    assert(notifications != null);
+    assert(cls != null);
+    assert(classes != null);
+    assert(retainedSizes != null);
+    assert(reachableSizes != null);
+    assert(references != null);
+    assert(retainingPaths != null);
+    assert(fields != null);
+    assert(scripts != null);
+    assert(instances != null);
+    assert(eval != null);
+    assert(stronglyReachable != null);
+    assert(topRetained != null);
+    assert(profiles != null);
+    ClassViewElement 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._cls = cls;
+    e._classes = classes;
+    e._retainedSizes = retainedSizes;
+    e._reachableSizes = reachableSizes;
+    e._references = references;
+    e._retainingPaths = retainingPaths;
+    e._fields = fields;
+    e._scripts = scripts;
+    e._instances = instances;
+    e._eval = eval;
+    e._stronglyReachableInstances = stronglyReachable;
+    e._topRetainedInstances = topRetained;
+    e._profiles = profiles;
+    return e;
+  }
 
   ClassViewElement.created() : super.created();
 
-  Future<ServiceObject> evaluate(String expression) {
-    return cls.evaluate(expression);
-  }
-
-  Future<ServiceObject> reachable(var limit) {
-    return cls.isolate.getInstances(cls, limit).then((ServiceMap obj) {
-      instances = obj;
-    });
-  }
-
-  Future retainedToplist(var limit) async {
-      final raw = await cls.isolate.fetchHeapSnapshot(true).last;
-      final snapshot = new HeapSnapshot();
-      await snapshot.loadProgress(cls.isolate, raw).last;
-      final most = await Future.wait(snapshot.getMostRetained(cls.isolate,
-                                                              classId: cls.vmCid,
-                                                              limit: 10));
-      mostRetained = new ObservableList.from(most);
-  }
-
-  // TODO(koda): Add no-arg "calculate-link" instead of reusing "eval-link".
-  Future<ServiceObject> reachableSize(var dummy) {
-    return cls.isolate.getReachableSize(cls).then((Instance obj) {
-      reachableBytes = int.parse(obj.valueAsString);
-    });
-  }
-
-  Future<ServiceObject> retainedSize(var dummy) {
-    return cls.isolate.getRetainedSize(cls).then((Instance obj) {
-      retainedBytes = int.parse(obj.valueAsString);
-    });
-  }
-
-  void attached() {
+  @override
+  attached() {
     super.attached();
-    cls.fields.forEach((field) => field.reload());
-  }
-
-  Future refresh() async {
-    instances = null;
-    retainedBytes = null;
-    mostRetained = null;
-    await cls.reload();
-    await Future.wait(cls.fields.map((field) => field.reload()));
-  }
-
-  M.SampleProfileTag _tag = M.SampleProfileTag.none;
-
-  Future refreshAllocationProfile() async {
-    shadowRoot.querySelector('#sampleBufferControl').children = const [];
-    shadowRoot.querySelector('#stackTraceTreeConfig').children = const [];
-    shadowRoot.querySelector('#cpuProfileTree').children = const [];
-    final stream = repository.get(cls, _tag);
-    var progress = (await stream.first).progress;
-    shadowRoot.querySelector('#sampleBufferControl')..children = [
-      new SampleBufferControlElement(progress, stream, queue: app.queue,
-          selectedTag: _tag)
-        ..onTagChange.listen((e) {
-          _tag = e.element.selectedTag;
-          refreshAllocationProfile();
-        })
+    _r.enable();
+    _loadAdditionalData();
+  }
+
+  @override
+  detached() {
+    super.detached();
+    _r.disable(notify: true);
+    children = [];
+  }
+
+  ObjectCommonElement _common;
+  ClassInstancesElement _classInstances;
+  bool _loadProfile = false;
+
+  void render() {
+    _common = _common ?? new ObjectCommonElement(_isolate, _cls, _retainedSizes,
+        _reachableSizes, _references, _retainingPaths, _instances,
+        queue: _r.queue);
+    _classInstances = _classInstances ?? new ClassInstancesElement(_isolate,
+        _cls, _retainedSizes, _reachableSizes, _stronglyReachableInstances,
+        _topRetainedInstances, _instances, queue: _r.queue);
+    var header = '';
+    if (_cls.isAbstract) {
+      header += 'abstract ';
+    }
+    if (_cls.isPatch) {
+      header += 'patch ';
+    }
+    if (_cls.mixin != null) {

[rmacnak, 2016/08/31 23:51:39]

I'd remove this. If class's mixin isn't null, that makes it a mixin application,
not a mixin.

[cbernaschina, 2016/09/01 00:04:07]

Done.

+      header += 'mixin ';
+    }
+    children = [
+      new NavBarElement(queue: _r.queue)
+        ..children = [
+          new NavTopMenuElement(queue: _r.queue),
+          new NavVMMenuElement(_vm, _events, queue: _r.queue),
+          new NavIsolateMenuElement(_isolate, _events, queue: _r.queue),
+          new NavClassMenuElement(_isolate, _cls, queue: _r.queue),
+          new NavRefreshElement(label: 'Refresh Allocation Profile',
+                                queue: _r.queue)
+              ..onRefresh.listen((e) {
+                e.element.disabled = true;
+                _loadProfile = true;
+                _r.dirty();
+              }),
+          new NavRefreshElement(queue: _r.queue)
+              ..onRefresh.listen((e) {
+                e.element.disabled = true;
+                _common = null;
+                _classInstances = null;
+                _fieldsExpanded = null;
+                _functionsExpanded = null;
+                _refresh();
+              }),
+          new NavNotifyElement(_notifications, queue: _r.queue)
+        ],
+      new DivElement()..classes = ['content-centered-big']
+        ..children = [
+          new HeadingElement.h2()..text = '$header class ${_cls.name}',
+          new HRElement(),
+          _common,
+          new BRElement(),
+          new DivElement()..classes = ['memberList']
+            ..children = _createMembers(),
+          new DivElement()
+            ..children = _cls.error == null
+              ? const []
+              : [
+                new HRElement(),
+                new ErrorRefElement(_cls.error, queue: _r.queue)
+              ],
+          new HRElement(),
+          new EvalBoxElement(_isolate, _cls, _instances, _eval,
+                             queue: _r.queue),
+          new HRElement(),
+          new HeadingElement.h2()..text = 'Fields & Functions',
+          new DivElement()..classes = ['memberList']
+            ..children = _createElements(),
+          new HRElement(),
+          new HeadingElement.h2()..text = 'Instances',
+          new DivElement()
+            ..children = _cls.hasAllocations
+              ? [_classInstances]
+              : const [],
+          new HRElement(),
+          new HeadingElement.h2()..text = 'Allocations',
+          new DivElement()..classes = ['memberList']
+            ..children = [
+              new DivElement()..classes = ['memberName']
+                ..text = 'Tracing allocations?  ',
+              new DivElement()..classes = ['memberValue']
+                ..children = _cls.traceAllocations
+                  ? [
+                    new SpanElement()..text = 'Yes ',
+                    new ButtonElement()..text = 'disable'
+                      ..onClick.listen((e) async {
+                        e.target.disabled = true;
+                        await _profiles.disable(_isolate, _cls);
+                        _loadProfile = true;
+                        _refresh();
+                      })
+                  ]
+                  : [
+                    new SpanElement()..text = 'No ',
+                    new ButtonElement()..text = 'enable'
+                      ..onClick.listen((e) async {
+                        e.target.disabled = true;
+                        await _profiles.enable(_isolate, _cls);
+                        _refresh();
+                      })
+                  ]
+            ],
+          new DivElement()
+            ..children = _loadProfile
+              ? [new ClassAllocationProfileElement(_isolate, _cls, _profiles,
+                  queue: _r.queue)]
+              : const [],
+          new DivElement()
+            ..children = _cls.location != null
+              ? [new HRElement(),
+                 new SourceInsetElement(_isolate, _cls.location, _scripts,
+                                        _instances, _events, queue: _r.queue)]
+              : const [],
+          new HRElement(),
+          new ViewFooterElement(queue: _r.queue)
+        ]
     ];
-    if (M.isSampleProcessRunning(progress.status)) {
-      progress = (await stream.last).progress;
-    }
-    if (progress.status == M.SampleProfileLoadingStatus.loaded) {
-      shadowRoot.querySelector('#stackTraceTreeConfig')..children = [
-        new StackTraceTreeConfigElement(
-          queue: app.queue)
-          ..showFilter = false
-          ..onModeChange.listen((e) {
-            cpuProfileTreeElement.mode = e.element.mode;
-          })
-          ..onDirectionChange.listen((e) {
-            cpuProfileTreeElement.direction = e.element.direction;
-          })
-      ];
-      shadowRoot.querySelector('#cpuProfileTree')..children = [
-        cpuProfileTreeElement = new CpuProfileVirtualTreeElement(cls.isolate,
-          progress.profile, queue: app.queue)
-      ];
-    }
-  }
-
-  Future toggleAllocationTrace() {
-    if (cls == null) {
-      return new Future(refresh);
-    }
-    if (cls.traceAllocations) {
-      refreshAllocationProfile();
-    }
-    return cls.setTraceAllocations(!cls.traceAllocations).whenComplete(refresh);
+  }
+
+  bool _fieldsExpanded;
+  bool _functionsExpanded;
+
+  List<Element> _createMembers() {
+    final members = <Element>[];
+    if (_cls.library != null) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'library',
+            new DivElement()..classes = ['memberValue']
+              ..children = [
+                new LibraryRefElement(_isolate, _cls.library, queue: _r.queue)
+              ]
+          ]
+      );
+    }
+    if (_cls.location != null) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'script',
+            new DivElement()..classes = ['memberValue']
+              ..children = [
+                new SourceLinkElement(_isolate, _cls.location, _scripts,
+                                      queue: _r.queue)
+              ]
+          ]
+      );
+    }
+    if (_cls.superclass != null) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'superclass',
+            new DivElement()..classes = ['memberValue']
+              ..children = [
+                new ClassRefElement(_isolate, _cls.superclass, queue: _r.queue)
+              ]
+          ]
+      );
+    }
+    if (_cls.superType != null) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'supertype',
+            new DivElement()..classes = ['memberValue']
+              ..children = [
+                new InstanceRefElement(_isolate, _cls.superType, _instances,
+                                       queue: _r.queue)
+              ]
+          ]
+      );
+    }
+    if (cls.mixin != null) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'mixin',
+            new DivElement()..classes = ['memberValue']
+              ..children = [
+                new InstanceRefElement(_isolate, _cls.mixin, _instances,
+                                       queue: _r.queue)
+              ]
+          ]
+      );
+    }
+    if (_cls.subclasses.length > 0) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'extended by',
+            new DivElement()..classes = ['memberValue']
+              ..children = (_cls.subclasses.expand((subcls) => [
+                new ClassRefElement(_isolate, subcls, queue: _r.queue),
+                new SpanElement()..text = ', '
+              ]).toList()..removeLast())
+          ]
+      );
+    }
+
+    members.add(new BRElement());
+
+    if (_cls.interfaces.length > 0) {
+      members.add(

[rmacnak, 2016/08/31 23:51:39]

This pattern seems to get repeated a lot in many of the views.  Maybe in another
CL, create a helper like

Element createMemberList(String title, List<Element> members) {
  return new DivElement()..classes = ['memberItem']
           ..children = [
             new DivElement()..classes = ['memberName']
               ..text = title,
             new DivElement()..classes = ['memberValue']
               ..children = members;
            ]
      );
}

[cbernaschina, 2016/09/01 00:04:07]

Acknowledged.

+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'implements',
+            new DivElement()..classes = ['memberValue']
+              ..children = (_cls.interfaces.expand((interf) => [
+                new InstanceRefElement(_isolate, interf, _instances,
+                                       queue: _r.queue),
+                new SpanElement()..text = ', '
+              ]).toList()..removeLast())
+          ]
+      );
+    }
+    if (_cls.name != _cls.vmName) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'vm name',
+            new DivElement()..classes = ['memberValue']
+              ..text = '${_cls.vmName}'
+          ]
+      );
+    }
+    return members;
+  }
+
+  List<Element> _createElements() {
+    final members = <Element>[];
+    if (_classFields != null && _classFields.isNotEmpty) {
+      final fields = _classFields.toList();
+      _fieldsExpanded = _fieldsExpanded ?? (fields.length <= 8);
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'fields ${fields.length}',
+            new DivElement()..classes = ['memberValue']
+              ..children =[
+                new CurlyBlockElement(expanded: _fieldsExpanded)
+                  ..onToggle.listen((e) => _fieldsExpanded = e.control.expanded)
+                  ..children = [
+                    new DivElement()..classes = ['memberList']
+                      ..children = (fields.map((f) =>
+                        new DivElement()..classes = ['memberItem']
+                          ..children = [
+                            new DivElement()..classes = ['memberName']
+                              ..children =[
+                                new FieldRefElement(_isolate, f, _instances,
+                                                    queue: _r.queue)
+                              ],
+                            new DivElement()..classes = ['memberValue']
+                              ..children = [
+                                anyRef(_isolate, f.staticValue, _instances,
+                                       queue: _r.queue)
+                              ]
+                          ]
+                      ).toList())
+                  ]
+              ]
+          ]
+      );
+    }
+
+    if (_cls.functions.isNotEmpty) {
+      final functions = _cls.functions.toList();
+      _functionsExpanded = _functionsExpanded ?? (functions.length <= 8);
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'functions (${functions.length})',
+            new DivElement()..classes = ['memberValue']
+              ..children =[
+                new CurlyBlockElement(expanded: _functionsExpanded)
+                  ..onToggle.listen((e) =>
+                      _functionsExpanded = e.control.expanded)
+                  ..children = (functions.map((f) =>
+                    new DivElement()..classes = ['indent']
+                      ..children = [
+                        new FunctionRefElement(_isolate, f, queue: _r.queue)
+                      ]
+                  ).toList())
+              ]
+          ]
+      );
+    }
+    return members;
+  }
+
+  Future _refresh() async {
+    _cls = await _classes.get(_isolate, _cls.id);
+    await _loadAdditionalData();
+    _r.dirty();
+  }
+
+  Future _loadAdditionalData() async {
+    _classFields = await Future.wait(_cls.fields.map((f)
+        => _fields.get(_isolate, f.id)));
+    _r.dirty();
   }
 }