Page Speed Optimization Libraries  1.12.34.1
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net_instaweb::JsInlineFilter Class Reference

Inline small Javascript files. More...

#include "js_inline_filter.h"

Inheritance diagram for net_instaweb::JsInlineFilter:
net_instaweb::CommonFilter net_instaweb::EmptyHtmlFilter net_instaweb::HtmlFilter

Public Member Functions

 JsInlineFilter (RewriteDriver *driver)
 
virtual void StartDocumentImpl ()
 
virtual void EndDocument ()
 
virtual void StartElementImpl (HtmlElement *element)
 
virtual void EndElementImpl (HtmlElement *element)
 
virtual void Characters (HtmlCharactersNode *characters)
 
virtual const char * Name () const
 The name of this filter – used for logging and debugging.
 
virtual
RewriteDriver::InlineAuthorizationPolicy 
AllowUnauthorizedDomain () const
 
virtual bool IntendedForInlining () const
 
ScriptUsage GetScriptUsage () const override
 
- Public Member Functions inherited from net_instaweb::CommonFilter
 CommonFilter (RewriteDriver *driver)
 
const GoogleUrlbase_url () const
 Getters. More...
 
const GoogleUrldecoded_base_url () const
 
RewriteDriverdriver () const
 
HtmlElementnoscript_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)
 
ResourcePtr CreateInputResource (StringPiece input_url, bool *is_authorized)
 
ResourcePtr CreateInputResourceOrInsertDebugComment (StringPiece input_url, HtmlElement *element)
 
void ResolveUrl (StringPiece input_url, GoogleUrl *out_url)
 
bool BaseUrlIsValid () const
 
bool DebugMode () const
 
bool CanAddPagespeedOnloadToImage (const HtmlElement &)
 
virtual void LogFilterModifiedContent ()
 
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 void DetermineEnabled (GoogleString *disabled_reason)
 
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)
 

Static Public Member Functions

static void InitStats (Statistics *statistics)
 
- 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

static const char kNumJsInlined []
 
- Static Public Attributes inherited from net_instaweb::CommonFilter
static const char kCreateResourceFailedDebugMsg []
 Debug message to be inserted when resource creation fails.
 

Friends

class Context
 

Additional Inherited Members

- Public Types inherited from net_instaweb::HtmlFilter
enum  ScriptUsage { kWillInjectScripts, kMayInjectScripts, kNeverInjectsScripts }
 Describes a filter's relationship with scripts. More...
 
- Protected Member Functions inherited from net_instaweb::CommonFilter
ServerContextserver_context () const
 
const RewriteOptionsrewrite_options ()
 
virtual const char * LoggingId ()
 

Detailed Description

Inline small Javascript files.

Member Function Documentation

virtual RewriteDriver::InlineAuthorizationPolicy net_instaweb::JsInlineFilter::AllowUnauthorizedDomain ( ) const
inlinevirtual

Inlining javascript from unauthorized domains into HTML is considered safe because it does not cause any new content to be executed compared to the unoptimized page.

Reimplemented from net_instaweb::CommonFilter.

virtual void net_instaweb::JsInlineFilter::Characters ( HtmlCharactersNode characters)
virtual

If a subclass overloads this function and wishes to use InsertNodeAtBodyEnd(), it needs to make an upcall to this implementation for InsertNodeAtBodyEnd() to work correctly.

Reimplemented from net_instaweb::CommonFilter.

virtual void net_instaweb::JsInlineFilter::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.

ScriptUsage net_instaweb::JsInlineFilter::GetScriptUsage ( ) const
inlineoverridevirtual

Note: there is also kRequiresScriptExecutionFilterSet in rewrite_options.cc, which identifies filters that will leave broken pages if javascript is disabled, and hence require noscript handing. The set of filters that CanInjectScripts is larger, as it includes filters that might inject beacons or other optional functionality that is not page-critical.

Implements net_instaweb::HtmlFilter.

virtual bool net_instaweb::JsInlineFilter::IntendedForInlining ( ) const
inlinevirtual

Returns true if the filter intends to inline the resource it fetches. This is to support AllowWhenInlining. Unlike AllowUnauthorizedDomain() this doesn't have security implications and is just used for performance tuning.

Reimplemented from net_instaweb::CommonFilter.

virtual void net_instaweb::JsInlineFilter::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.


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