// Copyright (c) 2012, 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.

part of $LIBRARYNAME;

$(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
$!MEMBERS

  // Override default options, since IE returns SelectElement itself and it
  // does not operate as a List.
  List<OptionElement> get options {
    var options = this.children.where((e) => e is OptionElement).toList();
    return new UnmodifiableListView<OptionElement>(options);
  }

  List<OptionElement> get selectedOptions {
    // IE does not change the selected flag for single-selection items.
    if (this.multiple) {
      var options = this.options.where((o) => o.selected).toList();
      return new UnmodifiableListView<OptionElement>(options);
    } else {
      return [this.options[this.selectedIndex]];
    }
  }
}
