TPAC 2016 [CSS Working Group Wiki]

TPAC 2016

http://www.w3.org/2016/09/TPAC/
full TPAC week is 19-23 September 2016
CSS WG meeting days are Mon-Tue 19-20 September
Lisbon, Portugal at the Centro de congressos de lisboa, room 5A, first floor (upper floor!)

Please, put your name in this table if you plan to participate (alphabetical order by given name):

Name	Arrival	Departure	Hotel	Flight info and notes
Alan Stearns	16 Sep	23 Sep	AirBnB	??
Andrey Rybka	17 Sep	23 Sep	Janelas Verdes Lisbon Hotel	??
Bert Bos	14 Sep	23 Sep	Hotel Vila Galé Ópera	TP487/TP486
Brian Birtles	18 Sep	21 Sep	Hotel Vila Galé Ópera	JL415+AF1124 / AF1625+JL416
Chris Lilley	17? Sept	24 Sept	?	arriving from Warsaw (ATypi conf)
Daniel Glazman	18 Sept	23 Sept	AirBnb
Dave Cramer	18 Sept	25 Sept	Hotel Vila Gale Opera	UA 6864 / UA 65
fantasai	17 Sept	24 Sept	Apt
Florian Rivoal	18 Sept	25 Sept	Airbnb	AF0291+AF1124 / KL1692+KL0867
Francois Remy	???	???	?	???
Geoffrey Sneddon	18 Sept	24 Sept	Hotel Vila Gale Opera	BA1479+TP0359 / TP0364+BA1498
Greg Whitworth	16 Sept	26 Sept	?	?
Hiroshi Sakakibara(+2 BPS crew)	18 Sept	22 Sept	AirBnB	TK053+TK1755 / TK1760+TK052
Hyojin Song	18 Sept	24 Sept	Hotel Vila Gale Opera
Ian Kilpatrick	19 Sept	25 Sept
Jen Simmons	18 Sept	22 Sept	Pestana Palace	flying in from Berlin (View Source), heading out to London (Generate)
Jihye Hong	18 Sept	24 Sept	Hotel Vila Gale Opera
Koji Ishii	18 Sept	23 Sept
Liam Quin	17th Sept	24th sept	Hotel Vila Galé Ópera	arr.LIS from LHR 10:45am; dep LIS 07:40am
Lea Verou	17? Sept	24 Sept	Hotel Vila Galé Ópera
Manuel Rego Casasnovas	18 Sept	22 Sept
Myles C. Maxfield	17 Sept	25 Sept	Sofitel Lisbon
Rick Byers	18 Sept	24 Sept	Hotel Vila Galé Ópera	AC? from Toronto, splitting time with PEWG meeting
Rossen Atanassov	17 Sept	24 Sept
Simon Sapin	18 Sept	25 Sept	AirBnB
Tantek Çelik	2016-09-18	2016-09-23	Hotel Vila Galé Ópera	UA58+UA8896 / MON1725

Regrets: Dael Jackson

(See also the current TPAC registrations [member-only])

Joint meeting with digipub (Monday 1pm)
Hanging Punctuation
Proposal for a new Regions specification — Jen Simmons, https://speakerdeck.com/jensimmons/proposal-to-csswg-sept-2016
HDR https://lists.w3.org/Archives/Public/www-style/2016Sep/0047.html (Mark Watson)
Transforms L2: backport translate/rotate/scale, as they're stable but L1 still isn't?
CSS Variables:
- var() in @keyframes? Multiple engines already support.
- Do “value tainting” of animation-tainted custom properties? (Rather than current “document-global name tainting”)
- How to store custom property values? Like strings (exactly preserved) or like token streams (may change from author phrasing)? “–path: m40.0,20.0” can reserialize as-is, or as “–path: m40/**/0.0,20.0”.
Approval to implement and ship transitionstart/transitionrun/transitioncancel/animationcancel?
CSS Cascade: “revert” is very expensive; Safari has busted (cheap) implementation. Can we simplify?
CR plan for 2016 - which specs are 'close' to CR? what is left to get them there by December pub moratorium? (Tantek)

Joint meeting with APA (Tuesday 9am)
Variation fonts in OpenType - (ChrisL, Behdad, et al.) (11am. Webex https://mit.webex.com/mit/j.php?MTID=m0c1976483287cfcf250bf914633bfe36 code 646 163 669 pass fonts)
Motion Path issues (jihye, Tue preferred)
- Shorthand 'offset'
  - https://github.com/w3c/fxtf-drafts/issues/42
  - https://github.com/w3c/fxtf-drafts/issues/24
- Revision for Motion Path and CSS Round Display

CSS Scroll Snap - Review DoC, remaining open issues, transition to CR?
- scroll-padding (Florian)
- "the corridor" (Florian)
MQ4
- should we have an MQ for a gamut narrower than srgb (Florian)
- Should there be an explicit minimum threshold to meet before a UA is allowed to claim initial-only? (Florian)
INCUBATION
Scroll-linked animations (https://birtles.github.io/scroll-animations/)
- Avoid Mon 15:00-17:00 and Tues 8:30-10:30 if possible (rbyers)
- Google proposal
CSS Writing Modes Level 3 test status and PR plan (koji, Tue preferred)
Scroll Anchoring - preventing the page from jiggling when things load off-screen. Chrome is experimenting; would like to discuss. explainer
Proposal: Create a new spec for timing functions (including frames(), spring(), multi-segment bezier?)
- Google proposal
Viewport API: https://github.com/WICG/ViewportAPI
Media Feature: “increase contrast” and/or “reduce transparency” user settings
- https://github.com/w3c/csswg-drafts/issues/443
Media Feature: “reduce motion” user setting
- https://github.com/w3c/csswg-drafts/issues/442
CSS UI 4 / user-select
- computed values vs separate properties
- effect on selections when clicking in a user-select:none (Florian)
margin-inside / margin-outside / float: inside / float: outside (Florian)
CSS-UI-3
- Remove outline-color: invert? (Florian)
Additional text-decoration styling: https://github.com/w3c/csswg-drafts/issues/459

CSS-Overflow:
- stable /always-on / overlay scrollbars (Florian)
- disabling scrollbars (Florian)
CSS Pseudo Elements https://github.com/w3c/csswg-drafts/issues?q=is%3Aopen+is%3Aissue+label%3Acss-pseudo-4
CSS Containment Terminology question (Florian)
Vertical Writing web award report (skk, Tue, if possible)
@apply: Thinking we should put on back burner, as variables + ::part seems like sufficient feature set for v1 of custom elements. Agree?
Baseline alignment issues (to be listed here)
- first/last syntax
Hoisting things to table wrappers: https://github.com/w3c/csswg-drafts/issues/324#issuecomment-235652352
Some brief overview about the status of testing, and possibly trying to get WG resolutions on anything that blocks progress, but hopefully that's nothing (/gsnedders)
clip-path excluding fixed-position descendants