Page Speed Optimization Libraries
1.4.26.1
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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_HTMLPARSE_PUBLIC_HTML_FILTER_H_ 00020 #define NET_INSTAWEB_HTMLPARSE_PUBLIC_HTML_FILTER_H_ 00021 00022 namespace net_instaweb { 00023 00024 class HtmlCdataNode; 00025 class HtmlCharactersNode; 00026 class HtmlCommentNode; 00027 class HtmlDirectiveNode; 00028 class HtmlElement; 00029 class HtmlIEDirectiveNode; 00030 00031 class HtmlFilter { 00032 public: 00033 HtmlFilter(); 00034 virtual ~HtmlFilter(); 00035 00038 virtual void StartDocument() = 0; 00040 virtual void EndDocument() = 0; 00041 00048 virtual void StartElement(HtmlElement* element) = 0; 00049 virtual void EndElement(HtmlElement* element) = 0; 00050 00052 virtual void Cdata(HtmlCdataNode* cdata) = 0; 00053 00055 virtual void Comment(HtmlCommentNode* comment) = 0; 00056 00062 virtual void IEDirective(HtmlIEDirectiveNode* directive) = 0; 00063 00065 virtual void Characters(HtmlCharactersNode* characters) = 0; 00066 00068 virtual void Directive(HtmlDirectiveNode* directive) = 0; 00069 00078 virtual void Flush() = 0; 00079 00082 virtual void DetermineEnabled() = 0; 00083 00086 bool is_enabled() const { return is_enabled_; } 00087 00089 virtual const char* Name() const = 0; 00090 00091 protected: 00092 void set_is_enabled(bool is_enabled) { is_enabled_ = is_enabled; } 00093 00094 private: 00095 bool is_enabled_; 00096 }; 00097 00098 } 00099 00100 #endif ///< NET_INSTAWEB_HTMLPARSE_PUBLIC_HTML_FILTER_H_