Make random clicks in the debugger give the command line input focus.

runtime/observatory/lib/src/elements/debugger.dart

 // Copyright (c) 2014, 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 debugger_page_element;
 
 import 'dart:async';
 import 'dart:html';
 import 'observatory_element.dart';
 import 'package:observatory/cli.dart';
@@ skipping 1251 matching lines @@
     stackElement.debugger = debugger;
     debugger.console = $['console'];
     debugger.input = $['commandline'];
     debugger.input.debugger = debugger;
     debugger.init();
 
     _isolateSubscriptionFuture =
         app.vm.listenEventStream(VM.kIsolateStream, debugger.onEvent);
     _debugSubscriptionFuture =
         app.vm.listenEventStream(VM.kDebugStream, debugger.onEvent);
+
+    onClick.listen((event) {
+      // Random clicks should focus on the text box.  If the user selects
+      // a range, don't interfere.
+      var selection = window.getSelection();
+      if (selection == null || selection.type == 'Caret') {
+        debugger.input.focus();
+      }
+    });
   }
 
   @override
   void detached() {
     cancelFutureSubscription(_isolateSubscriptionFuture);
     _isolateSubscriptionFuture = null;
     cancelFutureSubscription(_debugSubscriptionFuture);
     _debugSubscriptionFuture = null;
     super.detached();
   }
@@ skipping 449 matching lines @@
       });
   }
 
   void focus() {
     $['textBox'].focus();
   }
 
   DebuggerInputElement.created() : super.created();
 }