net_instaweb::GoogleAnalyticsFilter Class Reference

#include "google_analytics_filter.h"

Inheritance diagram for net_instaweb::GoogleAnalyticsFilter:
net_instaweb::EmptyHtmlFilter net_instaweb::HtmlFilter

List of all members.

Public Types

typedef StringPieceVector MethodVector

Public Member Functions

 GoogleAnalyticsFilter (HtmlParse *html_parse, Statistics *statistics)
 GoogleAnalyticsFilter (HtmlParse *html_parse, Statistics *statistics, MethodVector *glue_methods, MethodVector *unhandled_methods)
 The filter will take ownership of the method vectors.
virtual void StartDocument ()
virtual void EndDocument ()
 Note: EndDocument will be called imediately before the last Flush call.
virtual void StartElement (HtmlElement *element)
virtual void EndElement (HtmlElement *element)
virtual void Flush ()
virtual void Characters (HtmlCharactersNode *characters_node)
 Expected HTML Events in <script> elements.
virtual void Comment (HtmlCommentNode *comment)
 Unexpected HTML Events in <script> elements.
virtual void Cdata (HtmlCdataNode *cdata)
 Called for CDATA blocks (e.g. <![CDATA[foobar]]>).
virtual void IEDirective (HtmlIEDirectiveNode *directive)
virtual const char * Name () const
 The name of this filter -- used for logging and debugging.

Static Public Member Functions

static void Initialize (Statistics *statistics)

Static Public Attributes

static const char kPageLoadCount []
static const char kRewrittenCount []

Detailed Description

Filter <script> tags. Rewrite qualifying sync loads of Google Analytics as async loads.


Member Function Documentation

virtual void net_instaweb::GoogleAnalyticsFilter::Flush (  )  [virtual]

Notifies the Filter that a flush is occurring. A filter that's generating streamed output should flush at this time. A filter that's mutating elements can mutate any element seen since the most recent flush; once an element is flushed it is already on the wire to its destination and it's too late to mutate. Flush is initiated by an application calling HttpParse::Flush().

Flush() is called after all other handlers during a HttpParse::Flush().

Reimplemented from net_instaweb::EmptyHtmlFilter.

virtual void net_instaweb::GoogleAnalyticsFilter::IEDirective ( HtmlIEDirectiveNode directive  )  [virtual]

Called for an IE directive; typically used for CSS styling. See http://msdn.microsoft.com/en-us/library/ms537512(VS.85).aspx

Todo:
TODO(mdsteele): Should we try to maintain the nested structure of the conditionals, in the same way that we maintain nesting of elements?

Reimplemented from net_instaweb::EmptyHtmlFilter.

virtual void net_instaweb::GoogleAnalyticsFilter::StartDocument (  )  [virtual]

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::GoogleAnalyticsFilter::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.


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Generated on Tue May 29 16:34:00 2012 for Page Speed Optimization Libraries by  doxygen 1.6.3