net_instaweb::SrcSetSlotCollection Class Reference

#include "srcset_slot.h"

Inheritance diagram for net_instaweb::SrcSetSlotCollection:

Classes
struct	ImageCandidate

Public Member Functions
	SrcSetSlotCollection (RewriteDriver *driver, HtmlElement *element, HtmlElement::Attribute *attribute)
void	Initialize (CommonFilter *filter)
int	num_image_candidates ()
SrcSetSlot *	slot (int idx)
	may be nullptr.
const GoogleString &	url (int idx)
void	set_url (int idx, GoogleString new_url)
const GoogleString &	descriptor (int idx)
HtmlElement *	element () const
HtmlElement::Attribute *	attribute () const
CommonFilter *	filter () const
	The first filter that created this slot collection. There may be others.
RewriteDriver *	driver ()
int	begin_line_number () const
int	end_line_number () const
void	Commit ()
Public Member Functions inherited from net_instaweb::RefCounted< SrcSetSlotCollection >
void	Release ()
void	AddRef ()
bool	HasOneRef ()

Static Public Member Functions
static void	ParseSrcSet (StringPiece input, std::vector< ImageCandidate > *out)
static GoogleString	Serialize (const std::vector< ImageCandidate > &in)

Protected Member Functions
	REFCOUNT_FRIEND_DECLARATION (SrcSetSlotCollection)

Detailed Description

Since the various images inside a src attribute share the attribute, we hook them all up to a single SrcSetSlotCollection (which they own).

Constructor & Destructor Documentation

net_instaweb::SrcSetSlotCollection::SrcSetSlotCollection	(	RewriteDriver *	driver,
		HtmlElement *	element,
		HtmlElement::Attribute *	attribute
	)

Note: you need to separately call Initialize() to actually create all the slots and the like. This sets up just enough to be able to compare slots.

Member Function Documentation

void net_instaweb::SrcSetSlotCollection::Commit

(

)

This serializes everything back to the attribute. (Which is sadly quadratic, but the size should be small enough that it's more practical than trying to coordinate).

void net_instaweb::SrcSetSlotCollection::Initialize

(

CommonFilter *

filter

)

This will parse the passed in srcset attribute, and create all the slots, and all their resources.

static void net_instaweb::SrcSetSlotCollection::ParseSrcSet ( StringPiece  input, std::vector< ImageCandidate > *  out  )

static

Parses the input srcset attribute into *out (replacing its contents), filling in the url and descriptor fields (but not trying to create resources or fill in slot).

---

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

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