| /* |
| * Copyright 2012 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 NET_INSTAWEB_REWRITER_PUBLIC_BASE_TAG_FILTER_H_ |
| #define NET_INSTAWEB_REWRITER_PUBLIC_BASE_TAG_FILTER_H_ |
| |
| #include "pagespeed/kernel/base/basictypes.h" |
| #include "pagespeed/kernel/html/empty_html_filter.h" |
| |
| namespace net_instaweb { |
| |
| class HtmlElement; |
| class RewriteDriver; |
| |
| // Add this filter into the HtmlParse chain to add a base |
| // tag into the head section of an HTML document. |
| class BaseTagFilter : public EmptyHtmlFilter { |
| public: |
| explicit BaseTagFilter(RewriteDriver* driver) |
| : added_base_tag_(false), |
| driver_(driver) {} |
| |
| virtual ~BaseTagFilter(); |
| |
| virtual void StartDocument() { |
| added_base_tag_ = false; |
| } |
| virtual void StartElement(HtmlElement* element); |
| virtual const char* Name() const { return "BaseTag"; } |
| |
| private: |
| bool added_base_tag_; |
| RewriteDriver* driver_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BaseTagFilter); |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // NET_INSTAWEB_REWRITER_PUBLIC_BASE_TAG_FILTER_H_ |