Page Speed Optimization Libraries
1.8.31.3
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00001 /* 00002 * Copyright 2010 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_OUTLINE_FILTER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_CSS_OUTLINE_FILTER_H_ 00021 00022 #include <cstddef> 00023 00024 #include "net/instaweb/rewriter/public/common_filter.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 HtmlCharactersNode; 00032 class HtmlElement; 00033 class MessageHandler; 00034 class OutputResource; 00035 class RewriteDriver; 00036 00038 class CssOutlineFilter : public CommonFilter { 00039 public: 00040 static const char kFilterId[]; 00041 00042 explicit CssOutlineFilter(RewriteDriver* driver); 00043 virtual ~CssOutlineFilter(); 00044 00045 virtual void StartDocumentImpl(); 00046 00047 virtual void StartElementImpl(HtmlElement* element); 00048 virtual void EndElementImpl(HtmlElement* element); 00049 00050 virtual void Flush(); 00051 00053 virtual void Characters(HtmlCharactersNode* characters); 00054 00055 virtual const char* Name() const { return "OutlineCss"; } 00056 00057 private: 00058 bool WriteResource(const StringPiece& content, OutputResource* resource, 00059 MessageHandler* handler); 00060 void OutlineStyle(HtmlElement* element, const GoogleString& content); 00061 00064 HtmlElement* inline_element_; 00066 HtmlCharactersNode* inline_chars_; 00067 size_t size_threshold_bytes_; 00069 00070 DISALLOW_COPY_AND_ASSIGN(CssOutlineFilter); 00071 }; 00072 00073 } 00074 00075 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_CSS_OUTLINE_FILTER_H_