Page Speed Optimization Libraries
1.7.30.3
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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_ADD_HEAD_FILTER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_ADD_HEAD_FILTER_H_ 00021 00022 #include "net/instaweb/htmlparse/public/empty_html_filter.h" 00023 #include "net/instaweb/util/public/basictypes.h" 00024 00025 namespace net_instaweb { 00026 class HtmlElement; 00027 class HtmlParse; 00028 00032 class AddHeadFilter : public EmptyHtmlFilter { 00033 public: 00034 explicit AddHeadFilter(HtmlParse* parser, bool combine_multiple_heads); 00035 virtual ~AddHeadFilter(); 00036 00037 virtual void StartDocument(); 00038 virtual void StartElement(HtmlElement* element); 00039 virtual void EndDocument(); 00040 virtual void EndElement(HtmlElement* element); 00041 virtual void Flush(); 00042 virtual const char* Name() const { return "AddHead"; } 00043 00044 private: 00045 HtmlParse* html_parse_; 00046 bool combine_multiple_heads_; 00047 bool found_head_; 00048 HtmlElement* head_element_; 00049 00050 DISALLOW_COPY_AND_ASSIGN(AddHeadFilter); 00051 }; 00052 00053 } 00054 00055 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_ADD_HEAD_FILTER_H_