net_instaweb::InsertDnsPrefetchFilter Class Reference

#include "insert_dns_prefetch_filter.h"

Inheritance diagram for net_instaweb::InsertDnsPrefetchFilter:

Public Member Functions
	InsertDnsPrefetchFilter (RewriteDriver *driver)
virtual void	StartDocumentImpl ()
virtual void	EndDocument ()
virtual void	StartElementImpl (HtmlElement *element)
virtual void	EndElementImpl (HtmlElement *element)
virtual const char *	Name () const
	The name of this filter – used for logging and debugging.
virtual void	DetermineEnabled (GoogleString *disabled_reason)
virtual const char *	id () const
Public Member Functions inherited from net_instaweb::CommonFilter
	CommonFilter (RewriteDriver *driver)
const GoogleUrl &	base_url () const
	Getters. More...
const GoogleUrl &	decoded_base_url () const
RewriteDriver *	driver () const
HtmlElement *	noscript_element () const
void	InsertNodeAtBodyEnd (HtmlNode *data)
virtual void	StartDocument ()
	Note: Don't overload these methods, overload the implementers instead!
virtual void	StartElement (HtmlElement *element)
virtual void	EndElement (HtmlElement *element)
virtual void	Characters (HtmlCharactersNode *characters)
ResourcePtr	CreateInputResource (StringPiece input_url, RewriteDriver::InputRole role, bool *is_authorized)
ResourcePtr	CreateInputResourceOrInsertDebugComment (StringPiece input_url, RewriteDriver::InputRole role, HtmlElement *element)
void	ResolveUrl (StringPiece input_url, GoogleUrl *out_url)
bool	IsRelativeUrlLoadPermittedByCsp (StringPiece url, CspDirective role)
bool	BaseUrlIsValid () const
bool	DebugMode () const
bool	CanAddPagespeedOnloadToImage (const HtmlElement &)
virtual void	LogFilterModifiedContent ()
virtual RewriteDriver::InlineAuthorizationPolicy	AllowUnauthorizedDomain () const
virtual bool	IntendedForInlining () const
void	AddJsToElement (StringPiece js, HtmlElement *script)
Public Member Functions inherited from net_instaweb::EmptyHtmlFilter
virtual void	Cdata (HtmlCdataNode *cdata)
	Called for CDATA blocks (e.g. <![CDATA[foobar]]>)
virtual void	Comment (HtmlCommentNode *comment)
	Called for HTML comments that aren't IE directives (e.g. ).
virtual void	IEDirective (HtmlIEDirectiveNode *directive)
virtual void	Directive (HtmlDirectiveNode *directive)
	Called for HTML directives (e.g. <!doctype foobar>).
virtual void	Flush ()
virtual bool	CanModifyUrls ()
ScriptUsage	GetScriptUsage () const override
Public Member Functions inherited from net_instaweb::HtmlFilter
virtual void	RenderDone ()
bool	is_enabled () const
void	set_is_enabled (bool is_enabled)

Additional Inherited Members
Public Types inherited from net_instaweb::HtmlFilter
enum	ScriptUsage { kWillInjectScripts, kMayInjectScripts, kNeverInjectsScripts }
	Describes a filter's relationship with scripts. More...
Static Public Member Functions inherited from net_instaweb::CommonFilter
static bool	ExtractMetaTagDetails (const HtmlElement &element, const ResponseHeaders *headers, GoogleString *content, GoogleString *mime_type, GoogleString *charset)
Static Public Attributes inherited from net_instaweb::CommonFilter
static const char	kCreateResourceFailedDebugMsg []
	Debug message to be inserted when resource creation fails.
Protected Member Functions inherited from net_instaweb::CommonFilter
ServerContext *	server_context () const
const RewriteOptions *	rewrite_options ()
virtual const char *	LoggingId ()

Detailed Description

Injects <link rel="dns-prefetch" href="//www.example.com"> tags in the HEAD to enable the browser to do DNS prefetching.

Member Function Documentation

virtual void net_instaweb::InsertDnsPrefetchFilter::DetermineEnabled ( GoogleString *  disabled_reason )

virtual

Override DetermineEnabled to enable writing of the property cache DOM cohort in the RewriteDriver.

Reimplemented from net_instaweb::EmptyHtmlFilter.

virtual void net_instaweb::InsertDnsPrefetchFilter::EndDocument ( )

virtual

Note: EndDocument will be called immediately before the last Flush call. (which also means that in the RewriteDriver use it is called before rendering for the last flush window).

Reimplemented from net_instaweb::EmptyHtmlFilter.

virtual void net_instaweb::InsertDnsPrefetchFilter::StartDocumentImpl ( )

virtual

Overload these implementer methods: Intentionally left abstract so that implementers don't forget to change the name from Blah to BlahImpl.

Implements net_instaweb::CommonFilter.

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

• net/instaweb/rewriter/public/insert_dns_prefetch_filter.h