Page Speed Optimization Libraries  1.7.30.2
net/instaweb/rewriter/public/dom_stats_filter.h
Go to the documentation of this file.
00001 /*
00002  * Copyright 2013 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 
00020 
00021 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_DOM_STATS_FILTER_H_
00022 #define NET_INSTAWEB_REWRITER_PUBLIC_DOM_STATS_FILTER_H_
00023 
00024 #include "net/instaweb/util/public/basictypes.h"
00025 #include "net/instaweb/rewriter/public/common_filter.h"
00026 #include "net/instaweb/rewriter/public/script_tag_scanner.h"
00027 
00028 namespace net_instaweb {
00029 
00030 class HtmlElement;
00031 class RewriteDriver;
00032 
00034 class DomStatsFilter : public CommonFilter {
00035  public:
00036   explicit DomStatsFilter(RewriteDriver* driver);
00037   virtual ~DomStatsFilter();
00038 
00040   void Clear();
00041 
00042   virtual const char* Name() const { return "Dom Statistics"; }
00043 
00044   int num_img_tags() const { return num_img_tags_; }
00045   int num_inlined_img_tags() const { return num_inlined_img_tags_; }
00046   int num_external_css() const { return num_external_css_; }
00047   int num_scripts() const { return num_scripts_; }
00048   int num_critical_images_used() const { return num_critical_images_used_; }
00049 
00050  private:
00051   virtual void StartDocumentImpl();
00052   virtual void StartElementImpl(HtmlElement* element) {}
00053   virtual void EndElementImpl(HtmlElement* element);
00054 
00055   int num_img_tags_;
00056   int num_inlined_img_tags_;
00057   int num_external_css_;
00058   int num_scripts_;
00059   int num_critical_images_used_;
00060   ScriptTagScanner script_tag_scanner_;
00061 
00062   DISALLOW_COPY_AND_ASSIGN(DomStatsFilter);
00063 };
00064 
00065 }  
00066 
00067 #endif  ///< NET_INSTAWEB_REWRITER_PUBLIC_DOM_STATS_FILTER_H_
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines