W3C home > Mailing lists > Public > public-respimg@w3.org > February 2015

The Hard Part

From: Eric Portis <lists@ericportis.com>
Date: Mon, 09 Feb 2015 13:31:58 -0700
To: public-respimg@w3.org
Message-ID: <F76EE20C-083A-4466-9AB6-C07919027CEE@ericportis.com>
# The Hard Part

I'm going to open with a quote from Jason Grigsby, from his recent 
appearance on [the UIE Brain Sparks 

> I think even though responsive images is something that we’ve been 
> talking about for quite some time, that really 2015 is going to be the 
> year that web developers as a whole now are going to be, “Now 
> we’ve got the tools. How do we use them?”

The RICG researched use cases, labeled them “responsive images,” 
built consensus around a solution, spec’d that solution, and 
implemented it in browsers. Now comes the hard part: how do we, both as 
individual developers working on individual projects, and as evangelists 
looking to respimg-ify the web as a whole, get responsive images into 

## Trailblazers

Ethan Marcotte’s [@RWD Twitter account](https://twitter.com/rwd) asked 
for examples of respimg in action and [a few of his 112K followers 
obliged](https://twitter.com/RWD/status/560114266137985026). The replies 
contain a [wealth](http://www.shopify.com) of 

A bit of “view source” shows a boatload of `picturefill`, a 
smattering of `picture`, mostly `x` descriptors, and nary a `w` 
descriptor in sight. 
that this is a representative sample; it seems that the Hi-DPI and art 
direction use cases are easier for folks to wrap their minds around than 
resolution-switching. Which brings us to:

## Developer education

The aforementioned Jason Grigsby is giving a respimg talk at [An Event 
Apart in Atlanta](http://aneventapart.com/event/atlanta-2015) next week, 
and [posted a 
that he was developing for the talk to the RICG mailing list, asking for 
feedback. This chart was a bit of a revelation for me. So many boxes! A 
spaghetti of arrows! And yet as I followed each branch of the decision 
tree, I realized that they were all necessary.

The new markup covers a bunch of separate, yet related, use cases. I 
agree with Jason that presenting every use case all at once, up front, 
is [not](https://twitter.com/grigs/status/562738155317907456) 
[best](https://twitter.com/grigs/status/562738553189593088) way to teach 
respimg. Better to start with a single use case and build out from 
there. Perhaps it’s entirely natural that, at this early stage, `w` 
(and `sizes`) adoption is lagging behind the older, more established 
bits of syntax.

## WordPress follow-up

So what should the largest CMS in the world do about the new bits?

After the WordPress respimg plugin [shipped last 
conversations surrounding how to move it forward largely centered around 
the `sizes` attribute. Those 

The plugin, as shipped, leaves `sizes` off of `img` elements entirely, 
letting the browser pick amongst the provided (and `w`-descripted) 
`srcset` sources using the default `sizes` value of `100vw`. But! The 
spec [recently 
to *require* a `sizes` attribute whenever `w` descriptors are present. 
So the plugin maintainers are trying to figure out how, if, and who to 
expose `sizes` to. Should site maintainers have a say in this? Or should 
it be left to theme authors? Should it be done via a straight-up text 
input field, or can this functionality be abstracted in some useful way?

These are the sorts of questions that CMSes are going to have to answer 
over the coming months.

While we're discussing the WordPress plugin –

- If you’re using it, we’d love your 

- Here’s an article about using the plugin [in 

## Housekeeping, part deux

The results from [last week’s 
are in:

- 43% of you want monthly newsletters
- 43% of you want fortnightly newsletters (a.k.a. the status quo)
- 14% of you want weekly newsletters

Given that this leans slightly towards MOAR NEWSLETTERS, we’ll change 
nothing, and continue to send one of these things to you every two 

## Grab bag

- Here’s a smashing [video of Yoav’s respimg talk in 
(oh and he’s giving a whole workshop at [SmashingConf 

- Printing responsive images? [Printing responsive 

- A couple of [kind words for the group from Robin 

See you in a couple of weeks!

Received on Monday, 9 February 2015 20:32:33 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:06:16 UTC