Factor out the anchor prefix to easily allow switching to #!

client/web/parameters.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 web.parameters;
 
 import 'dart:html';
 import 'package:dartdoc_viewer/item.dart';
+import 'package:dartdoc_viewer/location.dart';
 import 'package:polymer/polymer.dart';
 import 'member.dart';
 import 'type.dart';
 
 @CustomTag("dartdoc-parameter")
 class ParameterElement extends DartdocElement {
   @published List<Parameter> parameters = const [];
 
   ParameterElement.created() : super.created();
 
@@ skipping 21 matching lines @@
       var optionalOpeningDelimiter =
           optional.isEmpty ? '' : optional.first.isNamed ? '{' : '[';
       outerSpan.appendText(optionalOpeningDelimiter);
     }
     for (var element in elements) {
       // Since a dartdoc-annotation cannot be instantiated from Dart code,
       // the annotations must be built manually.
       element.annotations.annotations.forEach((annotation) {
         var anchor = new AnchorElement()
           ..text = '@${annotation.simpleType}'
-          ..href = '#${annotation.location}';
+          ..href = '${locationPrefixed(annotation.location)}';
         outerSpan.append(anchor);
         outerSpan.appendText(' ');
       });
       // Skip dynamic as an outer parameter type (but not as generic)
       var space = '';
       if (!element.type.isDynamic) {
         outerSpan.append(new TypeElement()..type = element.type);
         space = ' ';
       }
       var parameterName = new AnchorElement()
         ..text = element.name
-        ..href = "#${element.anchorHref}"
-        ..id = "${element.anchorHrefLocation.anchor}";
+        ..href = element.prefixedAnchorHref
+        ..id = element.anchorHrefLocation.anchor;
       outerSpan.appendText(space);
       outerSpan.append(parameterName);
       outerSpan.appendText(element.decoration);
       if (className == 'required' && optional.isNotEmpty ||
           element != elements.last) {
         outerSpan.appendText(', ');
       }
     }
     if (className == 'optional') {
       var optionalClosingDelimiter =
           optional.isEmpty ? '' : optional.first.isNamed ? '}' : ']';
       outerSpan.appendText(optionalClosingDelimiter);
     }
     this.append(outerSpan);
   }
 }