Added quicks support to Observatory eval-box element

runtime/observatory/lib/src/elements/eval_box.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 eval_box_element;
 
 import 'dart:html';
 import 'dart:async';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/helpers/any_ref.dart';
@@ skipping 11 matching lines @@
 
   Stream<RenderedEvent<EvalBoxElement>> get onRendered => _r.onRendered;
 
   M.IsolateRef _isolate;
   M.ObjectRef _context;
   M.InstanceRepository _instances;
   M.EvalRepository _eval;
   final _results = <_ExpressionDescription>[];
   String _expression = '';
   bool _multiline;
+  Iterable<String> _quickExpressions;
 
   M.IsolateRef get isolate => _isolate;
   M.ObjectRef get context => _context;
 
   factory EvalBoxElement(M.IsolateRef isolate, M.ObjectRef context,
                          M.InstanceRepository instances,
                          M.EvalRepository eval,
-                         {bool multiline: false, RenderingQueue queue}) {
+                         {bool multiline: false,
+                          Iterable<String> quickExpressions: const [],
+                          RenderingQueue queue}) {
     assert(isolate != null);
     assert(context != null);
     assert(instances != null);
     assert(eval != null);
     assert(multiline != null);
+    assert(quickExpressions != null);
     EvalBoxElement e = document.createElement(tag.name);
     e._r = new RenderingScheduler(e, queue: queue);
     e._isolate = isolate;
     e._context = context;
     e._instances = instances;
     e._eval = eval;
     e._multiline = multiline;
+    e._quickExpressions = new List.unmodifiable(quickExpressions);
     return e;
   }
 
   EvalBoxElement.created() : super.created();
 
   @override
   void attached() {
     super.attached();
     _r.enable();
   }
 
   @override
   void detached() {
     super.detached();
     _r.disable(notify: true);
     children = [];
     _results.clear();
   }
 
   void render() {
     children = [
+      new DivElement()..classes = const ['quicks']
+        ..children = _quickExpressions.map((q) =>
+          new ButtonElement()
+            ..text = q
+            ..onClick.listen((_) {
+              _expression = q;
+              _run();
+            })
+        ),
       new DivElement()..classes = const ['heading']
         ..children = [
           new FormElement()
             ..autocomplete = 'on'
             ..children = [
               _multiline ? _createEvalTextArea() : _createEvalTextBox(),
               new SpanElement()..classes = const ['buttons']
                 ..children = [
                   _createEvalButton(),
                   _createMultilineCheckbox(),
@@ skipping 104 matching lines @@
 
 class _ExpressionDescription {
   final String expression;
   final M.ObjectRef value;
   bool get isPending => value == null;
 
   _ExpressionDescription(this.expression, this.value);
   _ExpressionDescription.pending(this.expression)
     : value = null;
 }