content: /*
   * Created on May 16, 2009
   * 
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   * 
   * http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
   * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
   * specific language governing permissions and limitations under the License.
   * 
   * Copyright @2009-2013 the original author or authors.
   */
  package org.fest.swing.keystroke;
  
  import static org.fest.swing.keystroke.KeyStrokeMappingProviderNames.generateNamesFrom;
  import static org.fest.util.Preconditions.checkNotNull;
  
  import java.util.Locale;
  
  import javax.annotation.Nonnull;
  
  import org.fest.swing.util.OSFamily;
  import org.fest.util.VisibleForTesting;
  
  /**
   * Chooses a {@link KeyStrokeMappingProvider} based on OS family and locale.
   * 
   * @author Alex Ruiz
   */
  class KeyStrokeMappingProviderPicker {
    private final KeyStrokeMappingProviderFactory factory;
  
    KeyStrokeMappingProviderPicker() {
      this(new KeyStrokeMappingProviderFactory());
    }
  
    @VisibleForTesting
    KeyStrokeMappingProviderPicker(@Nonnull KeyStrokeMappingProviderFactory factory) {
      this.factory = factory;
    }
  
    KeyStrokeMappingProvider providerFor(@Nonnull OSFamily osFamily, @Nonnull Locale locale) {
      for (String name : generateNamesFrom(osFamily, locale)) {
        String typeName = checkNotNull(name);
        KeyStrokeMappingProvider provider = factory.createProvider(typeName);
        if (provider != null) {
          return provider;
        }
      }
      return new KeyStrokeMappingProvider_en();
    }
  }
  