Page Speed Optimization Libraries
1.2.24.1
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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_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 00032 class CachedResult; 00033 class GoogleUrl; 00034 class HtmlElement; 00035 class RewriteDriver; 00036 00038 class CssInlineFilter : public CommonFilter { 00039 public: 00040 explicit CssInlineFilter(RewriteDriver* driver); 00041 virtual ~CssInlineFilter(); 00042 00043 virtual void StartDocumentImpl(); 00044 virtual void StartElementImpl(HtmlElement* element) {} 00045 virtual void EndElementImpl(HtmlElement* element); 00046 virtual const char* Name() const { return "InlineCss"; } 00047 00048 private: 00049 class Context; 00050 friend class Context; 00051 00052 bool ContainsNonStandardAttributes(const HtmlElement* element); 00053 bool ShouldInline(const ResourcePtr& resource, 00054 const StringPiece& attrs_attribute) const; 00055 void RenderInline(const ResourcePtr& resource, const CachedResult& cached, 00056 const GoogleUrl& base_url, const StringPiece& text, 00057 HtmlElement* element); 00058 00059 const size_t size_threshold_bytes_; 00060 00061 GoogleString domain_; 00062 00063 DISALLOW_COPY_AND_ASSIGN(CssInlineFilter); 00064 }; 00065 00066 } 00067 00068 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_CSS_INLINE_FILTER_H_