Converted Observatory cpu-profile element

runtime/observatory/lib/src/elements/stack_trace_tree_config.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.
+
+import 'dart:async';
+import 'dart:html';
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
+import 'package:observatory/src/elements/helpers/tag.dart';
+
+enum ProfileTreeMode {
+  code,
+  function,
+}
+
+class StackTraceTreeConfigChangedEvent {
+  final StackTraceTreeConfigElement element;
+  StackTraceTreeConfigChangedEvent(this.element);
+}
+
+class StackTraceTreeConfigElement extends HtmlElement implements Renderable {
+  static const tag =
+      const Tag<StackTraceTreeConfigElement>('stack-trace-tree-config');
+
+  RenderingScheduler<StackTraceTreeConfigElement> _r;
+
+  Stream<RenderedEvent<StackTraceTreeConfigElement>> get onRendered =>
+                                                                  _r.onRendered;
+
+  StreamController<StackTraceTreeConfigChangedEvent> _onModeChange =
+      new StreamController<StackTraceTreeConfigChangedEvent>.broadcast();
+  StreamController<StackTraceTreeConfigChangedEvent> _onDirectionChange =
+      new StreamController<StackTraceTreeConfigChangedEvent>.broadcast();
+  StreamController<StackTraceTreeConfigChangedEvent> _onFilterChange =
+      new StreamController<StackTraceTreeConfigChangedEvent>.broadcast();
+  Stream<StackTraceTreeConfigChangedEvent> get onModeChange =>
+      _onModeChange.stream;
+  Stream<StackTraceTreeConfigChangedEvent> get onDirectionChange =>
+      _onDirectionChange.stream;
+  Stream<StackTraceTreeConfigChangedEvent> get onFilterChange =>
+      _onFilterChange.stream;
+
+  bool _showMode;
+  bool _showDirection;
+  bool _showFilter;
+  ProfileTreeMode _mode;
+  M.ProfileTreeDirection _direction;
+  String _filter;
+
+  bool get showMode => _showMode;
+  bool get showDirection => _showDirection;
+  bool get showFilter => _showFilter;
+  ProfileTreeMode get mode => _mode;
+  M.ProfileTreeDirection get direction => _direction;
+  String get filter => _filter;
+
+  set showMode(bool value) => _showMode = _r.checkAndReact(_showMode, value);
+  set showDirection(bool value) =>
+      _showDirection = _r.checkAndReact(_showDirection, value);
+  set showFilter(bool value) =>
+      _showFilter = _r.checkAndReact(_showFilter, value);
+  set mode(ProfileTreeMode value) => _mode = _r.checkAndReact(_mode, value);
+  set direction(M.ProfileTreeDirection value) =>
+      _direction = _r.checkAndReact(_direction, value);
+  set filter(String value) => _filter = _r.checkAndReact(_filter, value);
+
+  factory StackTraceTreeConfigElement({bool showMode: true,
+      bool showDirection: true, bool showFilter: true, String filter: '',
+      ProfileTreeMode mode: ProfileTreeMode.function,
+      M.ProfileTreeDirection direction: M.ProfileTreeDirection.exclusive,
+      RenderingQueue queue}) {
+    assert(showMode != null);
+    assert(showDirection != null);
+    assert(showFilter != null);
+    assert(mode != null);
+    assert(direction != null);
+    assert(filter != null);
+    StackTraceTreeConfigElement e = document.createElement(tag.name);
+    e._r = new RenderingScheduler(e, queue: queue);
+    e._showMode = showMode;
+    e._showDirection = showDirection;
+    e._showFilter = showFilter;
+    e._mode = mode;
+    e._direction = direction;
+    e._filter = filter;
+    return e;
+  }
+
+  StackTraceTreeConfigElement.created() : super.created();
+
+  @override
+  void attached() {
+    super.attached();
+    _r.enable();
+  }
+
+  @override
+  void detached() {
+    super.detached(); _r.disable(notify: true);
+    children = const [];
+  }
+
+  void render() {
+    children = [
+      new DivElement()..classes = ['content-centered-big']
+        ..children = [
+          new HeadingElement.h2()..text = 'Tree display',
+          new HRElement(),
+          new DivElement()..classes = ['row']
+            ..children = [
+              new DivElement()..classes = ['memberList']
+                ..children = _createMembers()
+            ]
+        ]
+    ];
+  }
+
+  List<Element> _createMembers() {
+    var members = <Element>[];
+    if (_showMode) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']..text = 'Mode',
+            new DivElement()..classes = ['memberValue']
+              ..children = _createModeSelect()
+          ]
+      );
+    }
+    if (_showDirection) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'Call Tree Direction',
+            new SpanElement()..classes = ['memberValue']
+              ..children = _createDirectionSelect()
+          ]
+      );
+    }
+    if (showFilter) {
+      members.add(
+        new DivElement()..classes = ['memberItem']
+          ..children = [
+            new DivElement()..classes = ['memberName']
+              ..text = 'Call Tree Filter'
+              ..title = 'case-sensitive substring match',
+            new SpanElement()..classes = ['memberValue']
+              ..children = _createFilter()
+          ]
+      );
+    }
+    return members;
+  }
+
+  List<Element> _createModeSelect() {
+    var s;
+    return [
+      s = new SelectElement()..classes = ['mode-select']
+        ..value = modeToString(_mode)
+        ..children = ProfileTreeMode.values.map((mode) {
+            return new OptionElement(value : modeToString(mode),
+                selected: _mode == mode)
+              ..text = modeToString(mode);
+          }).toList(growable: false)
+        ..onChange.listen((_) {
+            _mode = ProfileTreeMode.values[s.selectedIndex];
+          })
+        ..onChange.map(_toEvent).listen(_triggerModeChange),
+    ];
+  }
+
+  List<Element> _createDirectionSelect() {
+    var s;
+    return [
+      s = new SelectElement()..classes = ['direction-select']
+        ..value = directionToString(_direction)
+        ..children = M.ProfileTreeDirection.values.map((direction) {
+            return new OptionElement(value: directionToString(direction),
+                selected: _direction == direction)
+              ..text = directionToString(direction);
+          }).toList(growable: false)
+        ..onChange.listen((_) {
+            _direction = M.ProfileTreeDirection.values[s.selectedIndex];
+          })
+        ..onChange.map(_toEvent).listen(_triggerDirectionChange),
+      new SpanElement()..text = 'Tree is rooted at ' +
+          (_direction == 'Down' ? '"main"' : 'function / code') +
+          '. Child nodes are callers.'
+    ];
+  }
+
+  List<Element> _createFilter(){
+    var t;
+    return [
+      t = new TextInputElement()..placeholder = 'Search filter'
+          ..value = filter
+          ..onChange.listen((_) { _filter = t.value; })
+          ..onChange.map(_toEvent).listen(_triggerFilterChange)
+    ];
+  }
+
+  static String modeToString(ProfileTreeMode mode) {
+    switch (mode) {
+      case ProfileTreeMode.code: return 'Code';
+      case ProfileTreeMode.function: return 'Function';
+    }
+    throw new Exception('Unknown ProfileTreeMode');
+  }
+
+  static String directionToString(M.ProfileTreeDirection direction) {
+    switch (direction) {
+      case M.ProfileTreeDirection.inclusive: return 'Top down';
+      case M.ProfileTreeDirection.exclusive: return 'Bottom up';
+    }
+    throw new Exception('Unknown ProfileTreeDirection');
+  }
+
+  StackTraceTreeConfigChangedEvent _toEvent(_) {
+    return new StackTraceTreeConfigChangedEvent(this);
+  }
+
+  void _triggerModeChange(e) => _onModeChange.add(e);
+  void _triggerDirectionChange(e) => _onDirectionChange.add(e);
+  void _triggerFilterChange(e) => _onFilterChange.add(e);
+
+
+}