Page Speed Optimization Libraries
1.5.27.2
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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 00033 class HtmlFilter { 00034 public: 00035 HtmlFilter(); 00036 virtual ~HtmlFilter(); 00037 00040 virtual void StartDocument() = 0; 00042 virtual void EndDocument() = 0; 00043 00050 virtual void StartElement(HtmlElement* element) = 0; 00051 virtual void EndElement(HtmlElement* element) = 0; 00052 00054 virtual void Cdata(HtmlCdataNode* cdata) = 0; 00055 00057 virtual void Comment(HtmlCommentNode* comment) = 0; 00058 00064 virtual void IEDirective(HtmlIEDirectiveNode* directive) = 0; 00065 00067 virtual void Characters(HtmlCharactersNode* characters) = 0; 00068 00070 virtual void Directive(HtmlDirectiveNode* directive) = 0; 00071 00081 virtual void Flush() = 0; 00082 00089 virtual void RenderDone(); 00090 00093 virtual void DetermineEnabled() = 0; 00094 00097 bool is_enabled() const { return is_enabled_; } 00098 00100 virtual const char* Name() const = 0; 00101 00102 protected: 00103 void set_is_enabled(bool is_enabled) { is_enabled_ = is_enabled; } 00104 00105 private: 00106 bool is_enabled_; 00107 }; 00108 00109 } 00110 00111 #endif ///< NET_INSTAWEB_HTMLPARSE_PUBLIC_HTML_FILTER_H_