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_CSS_INLINE_FILTER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_CSS_INLINE_FILTER_H_ 00021 00022 #include <cstddef> 00023 00024 #include "net/instaweb/rewriter/public/common_filter.h" 00025 #include "net/instaweb/rewriter/public/resource.h" 00026 #include "net/instaweb/util/public/basictypes.h" 00027 #include "net/instaweb/util/public/string.h" 00028 #include "net/instaweb/util/public/string_util.h" 00029 00030 namespace net_instaweb { 00031 class CachedResult; 00032 class GoogleUrl; 00033 class HtmlElement; 00034 class RewriteDriver; 00035 00037 class CssInlineFilter : public CommonFilter { 00038 public: 00039 explicit CssInlineFilter(RewriteDriver* driver); 00040 virtual ~CssInlineFilter(); 00041 00042 virtual void StartDocumentImpl(); 00043 virtual void StartElementImpl(HtmlElement* element) {} 00044 virtual void EndElementImpl(HtmlElement* element); 00045 virtual const char* Name() const { return "InlineCss"; } 00046 00047 private: 00048 class Context; 00049 friend class Context; 00050 00051 bool ShouldInline(const StringPiece& input) const; 00052 void RenderInline(const ResourcePtr& resource, const CachedResult& cached, 00053 const GoogleUrl& base_url, const StringPiece& text, 00054 HtmlElement* element); 00055 00056 const size_t size_threshold_bytes_; 00057 00058 GoogleString domain_; 00059 00060 DISALLOW_COPY_AND_ASSIGN(CssInlineFilter); 00061 }; 00062 00063 } 00064 00065 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_CSS_INLINE_FILTER_H_