Page Speed Optimization Libraries
1.2.24.1
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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_COLLECT_SUBRESOURCES_FILTER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_COLLECT_SUBRESOURCES_FILTER_H_ 00021 00022 #include <map> 00023 00024 #include "net/instaweb/htmlparse/public/html_element.h" 00025 #include "net/instaweb/rewriter/public/rewrite_filter.h" 00026 #include "net/instaweb/util/public/basictypes.h" 00027 #include "net/instaweb/util/public/gtest_prod.h" 00028 #include "net/instaweb/util/public/scoped_ptr.h" 00029 #include "net/instaweb/util/public/string_util.h" 00030 00031 namespace net_instaweb { 00032 00033 class AbstractMutex; 00034 class FlushEarlyInfo; 00035 class FlushEarlyResource; 00036 class PropertyCache; 00037 class RewriteDriver; 00038 00043 class CollectSubresourcesFilter : public RewriteFilter { 00044 public: 00045 explicit CollectSubresourcesFilter(RewriteDriver* rewrite_driver); 00046 virtual ~CollectSubresourcesFilter(); 00047 00048 virtual void StartDocumentImpl(); 00049 virtual void StartElementImpl(HtmlElement* element); 00050 virtual void EndElementImpl(HtmlElement* element); 00051 00052 virtual const char* Name() const { return "CollectSubresourcesFilter"; } 00053 virtual const char* id() const { return "fs"; } 00054 00055 void AddSubresourcesToFlushEarlyInfo(FlushEarlyInfo* info); 00056 00057 private: 00058 typedef std::map<int, FlushEarlyResource*> ResourceMap; 00059 00061 void CreateSubresourceContext(StringPiece url, 00062 HtmlElement* elt, 00063 HtmlElement::Attribute* attr); 00065 virtual bool UsesPropertyCacheDomCohort() const { return true; } 00066 00067 class Context; 00068 00069 bool in_first_head_; 00070 bool seen_first_head_; 00071 int num_resources_; 00072 scoped_ptr<AbstractMutex> mutex_; 00075 ResourceMap subresources_; 00076 PropertyCache* property_cache_; 00077 00078 FRIEND_TEST(CollectSubresourcesFilterTest, CollectSubresourcesFilter); 00079 FRIEND_TEST(CollectSubresourcesFilterTest, HtmlHasRewrittenUrl); 00080 00081 DISALLOW_COPY_AND_ASSIGN(CollectSubresourcesFilter); 00082 }; 00083 00084 } 00085 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_COLLECT_SUBRESOURCES_FILTER_H_