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_CRITICAL_IMAGES_FINDER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_IMAGES_FINDER_H_ 00021 00022 #include "net/instaweb/util/public/basictypes.h" 00023 #include "net/instaweb/util/public/string.h" 00024 #include "net/instaweb/util/public/string_util.h" 00025 00026 namespace net_instaweb { 00027 00028 class RewriteDriver; 00029 00032 class CriticalImagesFinder { 00033 public: 00034 CriticalImagesFinder(); 00035 virtual ~CriticalImagesFinder(); 00036 00038 virtual bool IsCriticalImage(const GoogleString& image_url, 00039 RewriteDriver* driver) const; 00040 00042 virtual void UpdateCriticalImagesSetInDriver(RewriteDriver* driver); 00043 00045 virtual void ComputeCriticalImages(StringPiece url, 00046 RewriteDriver* driver, 00047 bool must_compute); 00048 00049 private: 00050 DISALLOW_COPY_AND_ASSIGN(CriticalImagesFinder); 00051 }; 00052 00053 } 00054 00055 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_IMAGES_FINDER_H_