Page Speed Optimization Libraries
1.7.30.1
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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 class RewriteOptions; 00037 00042 class AssociationTransformer : public CssTagScanner::Transformer { 00043 public: 00052 AssociationTransformer(const GoogleUrl* base_url, 00053 const RewriteOptions* options, 00054 CssTagScanner::Transformer* backup_transformer, 00055 MessageHandler* handler) 00056 : base_url_(base_url), options_(options), 00057 backup_transformer_(backup_transformer), handler_(handler) {} 00058 virtual ~AssociationTransformer(); 00059 00063 StringStringMap* map() { return &map_; } 00064 00069 virtual TransformStatus Transform(const StringPiece& in, GoogleString* out); 00070 00071 private: 00073 StringStringMap map_; 00074 00076 const GoogleUrl* base_url_; 00077 const RewriteOptions* options_; 00078 00081 CssTagScanner::Transformer* backup_transformer_; 00082 00083 MessageHandler* handler_; 00084 00085 FRIEND_TEST(AssociationTransformerTest, TransformsCorrectly); 00086 00087 DISALLOW_COPY_AND_ASSIGN(AssociationTransformer); 00088 }; 00089 00095 class AssociationSlot : public ResourceSlot { 00096 public: 00098 AssociationSlot(ResourcePtr resource, 00099 StringStringMap* map, const StringPiece& key) 00100 : ResourceSlot(resource), map_(map) { 00101 key.CopyToString(&key_); 00102 } 00103 virtual ~AssociationSlot(); 00104 00107 virtual void Render() { 00108 if (!disable_rendering()) { 00109 (*map_)[key_] = resource()->url(); 00110 } 00111 } 00112 00113 virtual void DirectSetUrl(const StringPiece& url) { 00114 url.CopyToString(&((*map_)[key_])); 00115 } 00116 00117 virtual GoogleString LocationString() { 00120 return "Inside CSS"; 00121 } 00122 00123 private: 00124 StringStringMap* map_; 00125 GoogleString key_; 00126 00127 DISALLOW_COPY_AND_ASSIGN(AssociationSlot); 00128 }; 00129 00130 } 00131 00132 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_ASSOCIATION_TRANSFORMER_H_