Page Speed Optimization Libraries  1.4.26.1
net/instaweb/rewriter/public/css_url_counter.h
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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_CSS_URL_COUNTER_H_
00020 #define NET_INSTAWEB_REWRITER_PUBLIC_CSS_URL_COUNTER_H_
00021 
00022 #include "net/instaweb/rewriter/public/css_tag_scanner.h"
00023 #include "net/instaweb/util/public/basictypes.h"
00024 #include "net/instaweb/util/public/string.h"
00025 #include "net/instaweb/util/public/string_util.h"
00026 
00027 namespace net_instaweb {
00028 
00029 class GoogleUrl;
00030 class MessageHandler;
00031 
00034 class CssUrlCounter : public CssTagScanner::Transformer {
00035  public:
00037   CssUrlCounter(const GoogleUrl* base_url, MessageHandler* handler)
00038       : base_url_(base_url), handler_(handler) {}
00039   virtual ~CssUrlCounter();
00040 
00044   bool Count(const StringPiece& in_text);
00045 
00047   const StringIntMap& url_counts() const { return url_counts_; }
00048 
00049  private:
00051   virtual TransformStatus Transform(const StringPiece& in, GoogleString* out);
00052 
00054   StringIntMap url_counts_;
00055 
00057   const GoogleUrl* base_url_;
00058 
00059   MessageHandler* handler_;
00060 
00061   DISALLOW_COPY_AND_ASSIGN(CssUrlCounter);
00062 };
00063 
00064 }  
00065 
00066 #endif  ///< NET_INSTAWEB_REWRITER_PUBLIC_CSS_URL_COUNTER_H_
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