Merge pull request #581 from kevmoo/polymer

lib/scoped_css.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.
-
-/**
- * This library contains support for scoped CSS that uses the compilation
- * strategy of WebUI. This will likely become deprecated as we migrate over to
- * use runtime mechanisms to enforce scoped css rules.
- */
-library scoped_css;
-
-/**
- * Maps CSS selectors (class and) to a mangled name and maps x-component name
- * to [is='x-component'].
- */
-class ScopedCssMapper {
-  final Map<String, String> _mapping;
-
-  ScopedCssMapper(this._mapping);
-
-  /** Returns mangled name of selector sans . or # character. */
-  String operator [](String selector) => _mapping[selector];
-
-  /** Returns mangled name of selector w/ . or # character. */
-  String getSelector(String selector) {
-    var prefixedName = this[selector];
-    var selectorType = selector[0];
-    if (selectorType == '.' || selectorType == '#') {
-      return '$selectorType${prefixedName}';
-    }
-
-    return prefixedName;
-  }
-}
-
-/** Any CSS selector (class, id or element) defined name to mangled name. */
-Map<String, ScopedCssMapper> _mappers = {};
-
-ScopedCssMapper getScopedCss(String componentName) => _mappers[componentName];
-
-void setScopedCss(String componentName, Map<String, String> mapping) {
-  _mappers.putIfAbsent(componentName, () => new ScopedCssMapper(mapping));
-}