19 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_LAZYLOAD_IMAGES_FILTER_H_
20 #define NET_INSTAWEB_REWRITER_PUBLIC_LAZYLOAD_IMAGES_FILTER_H_
23 #include "pagespeed/kernel/base/string.h"
24 #include "pagespeed/opt/logging/enums.pb.h"
26 namespace net_instaweb {
31 class StaticAssetManager;
77 static const char* kImageLazyloadCode;
78 static const char* kImageOnloadCode;
79 static const char* kLoadAllImages;
80 static const char* kOverrideAttributeFunctions;
81 static const char* kIsLazyloadScriptInsertedPropertyName;
86 virtual const char* Name()
const {
return "Lazyload Images"; }
88 static void InitStats(Statistics* statistics);
89 static void Terminate();
93 static GoogleString GetLazyloadJsSnippet(
98 virtual void StartDocumentImpl();
99 virtual void EndDocument();
100 virtual void StartElementImpl(HtmlElement* element);
101 virtual void EndElementImpl(HtmlElement* element);
102 virtual void DetermineEnabled(GoogleString* disabled_reason);
107 static GoogleString GetBlankImageSrc(
112 void InsertLazyloadJsCode(HtmlElement* element);
116 void InsertOverrideAttributesScript(HtmlElement* element,
117 bool is_before_script);
120 GoogleString blank_image_url_;
123 HtmlElement* skip_rewrite_;
125 bool main_script_inserted_;
130 bool abort_script_inserted_;
133 int num_images_lazily_loaded_;
Definition: common_filter.h:48
Definition: static_asset_manager.h:44
Definition: rewrite_driver.h:98
Definition: lazyload_images_filter.h:75
Definition: rewrite_options.h:83
static RewriterHtmlApplication::Status ShouldApply(RewriteDriver *driver)
Lazyload filter will be no op for the request if ShouldApply returns false.