| /* |
| * Copyright 2014 Google Inc. |
| * |
| * 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. |
| */ |
| package com.google.gwt.resources.gss; |
| |
| import com.google.gwt.thirdparty.common.css.SubstitutionMap; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| /** |
| * This SubstitutionMap is used for renaming each style classes of the ast by its corresponding |
| * obfuscated name. |
| * <p/> |
| * It takes care of eventual prefix and does not rename external style classes. |
| * <p/> |
| * It lists the eventual external style class candidates (class without associated obfuscation |
| * name) |
| */ |
| public class RenamingSubstitutionMap implements SubstitutionMap { |
| private final Map<String, String> replacementMap; |
| |
| private Set<String> classes; |
| private Set<String> externalClassCandidates; |
| |
| public RenamingSubstitutionMap(Map<String, Map<String, String>> replacementsWithPrefix) { |
| this.replacementMap = computeReplacementMap(replacementsWithPrefix); |
| |
| classes = new HashSet<String>(); |
| externalClassCandidates = new HashSet<String>(); |
| } |
| |
| private Map<String, String> computeReplacementMap( |
| Map<String, Map<String, String>> replacementsWithPrefix) { |
| |
| Map<String, String> result = new HashMap<String, String>(); |
| |
| for (Entry<String, Map<String, String>> entry : replacementsWithPrefix.entrySet()) { |
| final String prefix = entry.getKey(); |
| Map<String, String> replacement = new HashMap<String, String>(); |
| |
| for (Entry<String, String> replacementEntry : entry.getValue().entrySet()) { |
| replacement.put(prefix + replacementEntry.getKey(), replacementEntry.getValue()); |
| } |
| |
| result.putAll(replacement); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public String get(String key) { |
| classes.add(key); |
| |
| String replacement = replacementMap.get(key); |
| |
| if (replacement == null) { |
| // could be an external style class |
| externalClassCandidates.add(key); |
| return key; |
| } |
| |
| return replacement; |
| } |
| |
| public Set<String> getStyleClasses() { |
| return classes; |
| } |
| |
| public Set<String> getExternalClassCandidates() { |
| return externalClassCandidates; |
| } |
| } |