Page Speed Optimization Libraries
1.6.29.3
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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_