Page Speed Optimization Libraries  1.2.24.1
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net_instaweb::DeterministicJsFilter Class Reference

#include "deterministic_js_filter.h"

Inheritance diagram for net_instaweb::DeterministicJsFilter:
net_instaweb::EmptyHtmlFilter net_instaweb::HtmlFilter

List of all members.

Public Member Functions

 DeterministicJsFilter (RewriteDriver *driver)
virtual void StartDocument ()
virtual void StartElement (HtmlElement *element)
virtual const char * Name () const
 The name of this filter -- used for logging and debugging.

Detailed Description

Injects javascript at the beginning of the head tag to make it deterministic. The JS redefines functions like Math.random and Date. This filter is useful for testing and measurement but does not provide any latency gains. A head element is added if it is not already present in the html.


Member Function Documentation

Starts a new document. Filters should clear their state in this function, as the same Filter instance may be used for multiple HTML documents.

Reimplemented from net_instaweb::EmptyHtmlFilter.

virtual void net_instaweb::DeterministicJsFilter::StartElement ( HtmlElement element) [virtual]

When an HTML element is encountered during parsing, each filter's StartElement method is called. The HtmlElement lives for the entire duration of the document.

Todo:
TODO(jmarantz): consider passing handles rather than pointers and reference-counting them instead to save memory on long documents.

Reimplemented from net_instaweb::EmptyHtmlFilter.


The documentation for this class was generated from the following file:
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