Page Speed Optimization Libraries
1.8.31.2
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00001 /* 00002 * Copyright 2013 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 00021 00022 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_LINE_INFO_FINDER_H_ 00023 #define NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_LINE_INFO_FINDER_H_ 00024 00025 #include "net/instaweb/rewriter/public/critical_finder_support_util.h" 00026 #include "net/instaweb/util/public/basictypes.h" 00027 #include "net/instaweb/util/public/property_cache.h" 00028 00029 namespace net_instaweb { 00030 00031 class CriticalLineInfo; 00032 class RewriteDriver; 00033 00037 class CriticalLineInfoFinder { 00038 public: 00039 static const char kCriticalLineInfoPropertyName[]; 00040 00041 explicit CriticalLineInfoFinder(const PropertyCache::Cohort* cohort); 00042 virtual ~CriticalLineInfoFinder(); 00043 00045 const PropertyCache::Cohort* cohort() const { return cohort_; } 00046 00048 virtual const CriticalLineInfo* GetCriticalLine(RewriteDriver* driver); 00049 00054 virtual BeaconMetadata PrepareForBeaconInsertion(RewriteDriver* driver) { 00055 BeaconMetadata result; 00056 result.status = kBeaconNoNonce; 00057 return result; 00058 } 00059 00060 protected: 00062 virtual void UpdateInDriver(RewriteDriver* driver); 00063 00064 private: 00065 virtual int SupportInterval() const { return 1; } 00066 00067 const PropertyCache::Cohort* cohort_; 00068 00069 DISALLOW_COPY_AND_ASSIGN(CriticalLineInfoFinder); 00070 }; 00071 00072 } 00073 00074 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_LINE_INFO_FINDER_H_ 00075