Page Speed Optimization Libraries
1.3.25.1
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00001 /* 00002 * Copyright 2012 Google Inc. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http:///www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00018 00019 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_ASSOCIATION_TRANSFORMER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_ASSOCIATION_TRANSFORMER_H_ 00021 00022 #include <map> 00023 00024 #include "net/instaweb/rewriter/public/css_tag_scanner.h" 00025 #include "net/instaweb/rewriter/public/resource.h" 00026 #include "net/instaweb/rewriter/public/resource_slot.h" 00027 #include "net/instaweb/util/public/basictypes.h" 00028 #include "net/instaweb/util/public/gtest_prod.h" 00029 #include "net/instaweb/util/public/string.h" 00030 #include "net/instaweb/util/public/string_util.h" 00031 00032 namespace net_instaweb { 00033 00034 class GoogleUrl; 00035 class MessageHandler; 00036 00041 class AssociationTransformer : public CssTagScanner::Transformer { 00042 public: 00051 AssociationTransformer(const GoogleUrl* base_url, 00052 CssTagScanner::Transformer* backup_transformer, 00053 MessageHandler* handler) 00054 : base_url_(base_url), backup_transformer_(backup_transformer), 00055 handler_(handler) {} 00056 virtual ~AssociationTransformer(); 00057 00061 StringStringMap* map() { return &map_; } 00062 00067 virtual TransformStatus Transform(const StringPiece& in, GoogleString* out); 00068 00069 private: 00071 StringStringMap map_; 00072 00074 const GoogleUrl* base_url_; 00075 00078 CssTagScanner::Transformer* backup_transformer_; 00079 00080 MessageHandler* handler_; 00081 00082 FRIEND_TEST(AssociationTransformerTest, TransformsCorrectly); 00083 00084 DISALLOW_COPY_AND_ASSIGN(AssociationTransformer); 00085 }; 00086 00092 class AssociationSlot : public ResourceSlot { 00093 public: 00095 AssociationSlot(ResourcePtr resource, 00096 StringStringMap* map, const StringPiece& key) 00097 : ResourceSlot(resource), map_(map) { 00098 key.CopyToString(&key_); 00099 } 00100 virtual ~AssociationSlot(); 00101 00104 virtual void Render() { 00105 if (!disable_rendering()) { 00106 (*map_)[key_] = resource()->url(); 00107 } 00108 } 00109 00110 virtual void DirectSetUrl(const StringPiece& url) { 00111 url.CopyToString(&((*map_)[key_])); 00112 } 00113 00114 virtual GoogleString LocationString() { 00117 return "Inside CSS"; 00118 } 00119 00120 private: 00121 StringStringMap* map_; 00122 GoogleString key_; 00123 00124 DISALLOW_COPY_AND_ASSIGN(AssociationSlot); 00125 }; 00126 00127 } 00128 00129 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_ASSOCIATION_TRANSFORMER_H_