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_JS_INLINE_FILTER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_JS_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/rewriter/public/script_tag_scanner.h" 00027 #include "net/instaweb/util/public/basictypes.h" 00028 #include "net/instaweb/util/public/string_util.h" 00029 00030 namespace net_instaweb { 00031 class HtmlElement; 00032 class HtmlCharactersNode; 00033 class RewriteDriver; 00034 00036 class JsInlineFilter : public CommonFilter { 00037 public: 00038 explicit JsInlineFilter(RewriteDriver* driver); 00039 virtual ~JsInlineFilter(); 00040 00041 virtual void StartDocumentImpl(); 00042 virtual void EndDocument(); 00043 virtual void StartElementImpl(HtmlElement* element); 00044 virtual void EndElementImpl(HtmlElement* element); 00045 virtual void Characters(HtmlCharactersNode* characters); 00046 virtual const char* Name() const { return "InlineJs"; } 00047 00048 private: 00049 class Context; 00050 friend class Context; 00051 00052 bool ShouldInline(const StringPiece& input) const; 00053 void RenderInline(const ResourcePtr& resource, const StringPiece& text, 00054 HtmlElement* element); 00055 00056 const size_t size_threshold_bytes_; 00057 ScriptTagScanner script_tag_scanner_; 00058 00064 bool should_inline_; 00065 00066 DISALLOW_COPY_AND_ASSIGN(JsInlineFilter); 00067 }; 00068 00069 } 00070 00071 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_JS_INLINE_FILTER_H_