| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: jmarantz@google.com (Joshua Marantz) |
| |
| #ifndef PAGESPEED_KERNEL_HTML_EMPTY_HTML_FILTER_H_ |
| #define PAGESPEED_KERNEL_HTML_EMPTY_HTML_FILTER_H_ |
| |
| #include "pagespeed/kernel/html/html_filter.h" |
| |
| // This 'string' is not needed for this include. But removing it breaks |
| // PageSpeed Insights. See |
| // third_party/pagespeed/src/pagespeed/html/external_resource_filter.h |
| // Remove this once that one is fixed. |
| #include "pagespeed/kernel/base/string.h" |
| |
| namespace net_instaweb { |
| |
| class HtmlCdataNode; |
| class HtmlCharactersNode; |
| class HtmlCommentNode; |
| class HtmlDirectiveNode; |
| class HtmlElement; |
| class HtmlIEDirectiveNode; |
| |
| // TODO(jmarantz): remove this -- it's IWYU-superfluous but is needed until |
| // PageSpeed Insights puts this declaration in. Note that IWYU annoyingly |
| // ignores the pragma on forward declarations, but the intent should be clear. |
| class HtmlParse; |
| |
| // Base class for rewriting filters that don't need to be sure to |
| // override every filter method. Other filters that need to be sure |
| // they override every method would derive directly from HtmlFilter. |
| class EmptyHtmlFilter : public HtmlFilter { |
| public: |
| EmptyHtmlFilter(); |
| virtual ~EmptyHtmlFilter(); |
| |
| virtual void StartDocument(); |
| virtual void EndDocument(); |
| virtual void StartElement(HtmlElement* element); |
| virtual void EndElement(HtmlElement* element); |
| virtual void Cdata(HtmlCdataNode* cdata); |
| virtual void Comment(HtmlCommentNode* comment); |
| virtual void IEDirective(HtmlIEDirectiveNode* directive); |
| virtual void Characters(HtmlCharactersNode* characters); |
| virtual void Directive(HtmlDirectiveNode* directive); |
| virtual void Flush(); |
| virtual void DetermineEnabled(GoogleString* disabled_reason); |
| |
| // This filter and derived classes will not rewrite urls. If a derived filter |
| // wants to rewrite urls, override this function. |
| virtual bool CanModifyUrls() {return false;} |
| |
| // Note -- this does not provide an implementation for Name(). This |
| // must be supplied by derived classes. |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // PAGESPEED_KERNEL_HTML_EMPTY_HTML_FILTER_H_ |