Page Speed Optimization Libraries
1.4.26.1
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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 */ 00017 00018 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_COLLECT_FLUSH_EARLY_CONTENT_FILTER_H_ 00019 #define NET_INSTAWEB_REWRITER_PUBLIC_COLLECT_FLUSH_EARLY_CONTENT_FILTER_H_ 00020 00021 #include "net/instaweb/htmlparse/public/html_name.h" 00022 #include "net/instaweb/http/public/semantic_type.h" 00023 #include "net/instaweb/rewriter/public/rewrite_filter.h" 00024 #include "net/instaweb/rewriter/public/rewrite_options.h" 00025 #include "net/instaweb/util/public/basictypes.h" 00026 #include "net/instaweb/util/public/string.h" 00027 #include "net/instaweb/util/public/string_util.h" 00028 00029 namespace net_instaweb { 00030 00031 class HtmlElement; 00032 class RewriteDriver; 00033 00043 class CollectFlushEarlyContentFilter : public RewriteFilter { 00044 public: 00045 explicit CollectFlushEarlyContentFilter(RewriteDriver* driver); 00046 00047 virtual void StartDocumentImpl(); 00048 virtual void EndDocument(); 00049 virtual void StartElementImpl(HtmlElement* element); 00050 virtual void EndElementImpl(HtmlElement* element); 00051 00052 virtual const char* Name() const { 00053 return "Collect Flush Early Content Filter"; 00054 } 00055 virtual const char* id() const { 00056 return RewriteOptions::kCollectFlushEarlyContentFilterId; 00057 } 00058 00059 protected: 00060 virtual void Clear(); 00061 00062 private: 00063 class Context; 00064 00065 void AppendToHtml(StringPiece url, semantic_type::Category category, 00066 HtmlElement* element); 00067 void AppendAttribute(HtmlName::Keyword keyword, HtmlElement* element); 00069 virtual bool UsesPropertyCacheDomCohort() const { return true; } 00070 00072 bool found_resource_; 00073 GoogleString resource_html_; 00074 00075 DISALLOW_COPY_AND_ASSIGN(CollectFlushEarlyContentFilter); 00076 }; 00077 00078 } 00079 00080 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_COLLECT_FLUSH_EARLY_CONTENT_FILTER_H_