runtime/observatory/lib/src/elements/service_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 service_object_view_element;

import 'dart:html';
import 'package:logging/logging.dart';
import 'package:observatory/service.dart';
import 'package:observatory/tracer.dart';
import 'package:observatory/elements.dart';
import 'package:polymer/polymer.dart';
import 'observatory_element.dart';

@CustomTag('service-view')
class ServiceObjectViewElement extends ObservatoryElement {
  @published ServiceObject object;
  @published ObservableMap args;

  ServiceObjectViewElement.created() : super.created();

  ObservatoryElement _constructElementForObject() {
    var type = object.type;
    switch (type) {
      case 'Class':
        ClassViewElement element = new Element.tag('class-view');
        element.cls = object;
        return element;
      case 'Code':
        CodeViewElement element = new Element.tag('code-view');
        element.code = object;
        return element;
      case 'Context':
        ContextViewElement element = new Element.tag('context-view');
        element.context = object;
        return element;
      case 'Error':
        ErrorViewElement element = new Element.tag('error-view');
        element.error = object;
        return element;
      case 'Field':
        FieldViewElement element = new Element.tag('field-view');
        element.field = object;
        return element;
      case 'Function':
        FunctionViewElement element = new Element.tag('function-view');
        element.function = object;
        return element;
      case 'HeapMap':
        HeapMapElement element = new Element.tag('heap-map');
        element.fragmentation = object;
        return element;
      case 'Object':
        return (object) {
          switch (object.vmType) {
            case 'ICData':
              ICDataViewElement element = new Element.tag('icdata-view');
              element.icData = object;
              return element;
            case 'MegamorphicCache':
              MegamorphicCacheViewElement element =
                  new Element.tag('megamorphiccache-view');
              element.megamorphicCache = object;
              return element;
            case 'ObjectPool':
              ObjectPoolViewElement element = new Element.tag('objectpool-view');
              element.pool = object;
              return element;
            default:
              ObjectViewElement element = new Element.tag('object-view');
              element.object = object;
              return element;
          }
        }(object);
      case 'Isolate':
        IsolateViewElement element = new Element.tag('isolate-view');
        element.isolate = object;
        return element;
      case 'Library':
        LibraryViewElement element = new Element.tag('library-view');
        element.library = object;
        return element;
      case 'Script':
        ScriptViewElement element = new Element.tag('script-view');
        element.script = object;
        return element;
      case 'VM':
        VMViewElement element = new Element.tag('vm-view');
        element.vm = object;
        return element;
      default:
        if (object.isInstance ||
            object.isSentinel) {  // TODO(rmacnak): Separate this out.
          InstanceViewElement element = new Element.tag('instance-view');
          element.instance = object;
          return element;
        } else {
          JsonViewElement element = new Element.tag('json-view');
          element.map = object;
          return element;
        }
    }
  }

  objectChanged(oldValue) {
    // Remove the current view.
    children.clear();
    if (object == null) {
      Logger.root.info('Viewing null object.');
      return;
    }
    var type = object.vmType;
    var element = _constructElementForObject();
    if (element == null) {
      Logger.root.info('Unable to find a view element for \'${type}\'');
      return;
    }
    children.add(element);
  }
}

@CustomTag('trace-view')
class TraceViewElement extends ObservatoryElement {
  @published Tracer tracer;
  TraceViewElement.created() : super.created();
}

@CustomTag('map-viewer')
class MapViewerElement extends ObservatoryElement {
  @published Map map;
  @published bool expand = false;
  MapViewerElement.created() : super.created();

  bool isMap(var m) {
    return m is Map;
  }

  bool isList(var m) {
    return m is List;
  }

  dynamic expander() {
    return expandEvent;
  }

  void expandEvent(bool exp, var done) {
    expand = exp;
    done();
  }
}

@CustomTag('list-viewer')
class ListViewerElement extends ObservatoryElement {
  @published List list;
  @published bool expand = false;
  ListViewerElement.created() : super.created();

  bool isMap(var m) {
    return m is Map;
  }

  bool isList(var m) {
    return m is List;
  }

  dynamic expander() {
    return expandEvent;
  }

  void expandEvent(bool exp, var done) {
    expand = exp;
    done();
  }
}