407.txt

* 仕様書

[REFS[
- [18] [CITE@en-GB-x-hixie[HTML Standard]] ([TIME[2014-06-20 15:40:17 +09:00]] 版) <http://www.whatwg.org/specs/web-apps/current-work/#the-picture-element>
]REFS]

* 歴史

[1]
[CITE[Pages using <picture> (sorted by MD5 of URL)]] ([CODE[2007-12-27 01:29:06 +09:00]] 版) <http://canvex.lazyilluminati.com/survey/2007-07-17/analyse.cgi/pages/tag/picture>

[2]
[CITE[HTML5 IRC logs: freenode / #whatwg / 20071225]] ([TIME[2007-12-27 01:31:25 +09:00]] 版) <http://krijnhoetmer.nl/irc-logs/whatwg/20071225#l-150>

** [CODE(HTMLa)@en[srcset]] 属性

;; [17] [CODE(HTMLa)@en[[[srcset]]]] [[属性]]の項を参照してください。

** RICG

[16] [CITE@en-US[Responsive Images Community Group]]
( ([TIME[2012-05-11 00:38:40 +09:00]] 版))
<http://www.w3.org/community/respimg/>

[7] [CITE[The picture element]]
( ([TIME[2013-02-25 18:22:25 +09:00]] 版))
<http://picture.responsiveimages.org/>

[14] [CITE[Use Cases and Requirements for Standardizing Responsive Images]]
( ([TIME[2013-02-26 19:38:11 +09:00]] 版))
<http://www.w3.org/TR/2013/WD-respimg-usecases-20130226/>

[19] [CITE[IRC logs: freenode / #whatwg / 20130921]]
( ([TIME[2013-09-24 09:00:22 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20130921>

[3] [CITE[IRC logs: freenode / #whatwg / 20130930]]
( ([TIME[2013-10-03 20:18:29 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20130930>

[4] [CITE@en[Use Cases and Requirements for Standardizing Responsive Images]]
( ([TIME[2013-11-06 19:34:20 +09:00]] 版))
<http://www.w3.org/TR/2013/NOTE-respimg-usecases-20131107/>

[5] [CITE[Simplified Picture Element]]
( ([TIME[2013-11-24 09:28:21 +09:00]] 版))
<http://geekhood.net/picture-element.html>

[6] [CITE[The picture element]]
( ([TIME[2013-02-26 01:52:04 +09:00]] 版))
<http://www.w3.org/TR/2013/WD-html-picture-element-20130226/>

[15] [CITE@en[ResponsiveImages.org]] ([TIME[2014-07-01 05:02:45 +09:00]] 版) <http://responsiveimages.org/>

** HTML Standard への統合

[8] [CITE@en[Web Applications 1.0 r8561 Internal annotations for future img stuff]]
( ([TIME[2014-04-03 04:17:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=8560&to=8561>

[9] [CITE[IRC logs: freenode / #whatwg / 20140402]]
( ([TIME[2014-04-03 13:58:15 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20140402#l-136>

[10] [CITE@en[Web Applications 1.0 r8612 Remove the <img> stuff so that zcorpan can edit it instead. (this is purely editorial)]]
( ([TIME[2014-05-08 06:40:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=8611&to=8612>

[11] [CITE[''''''[''''''e'''''']'''''' (0) Merge upstream changes for <img> · 08e2efd · whatwg/html-mirror]]
( ([TIME[2014-05-15 07:09:26 +09:00]] 版))
<https://github.com/whatwg/html-mirror/commit/08e2efd661728b8b2563cd5f144a89e3b6c5409f>

[12] [CITE@en[''''''[''''''whatwg'''''']'''''' <picture> added to HTML]]
( ([[Simon Pieters]] 著, [TIME[2014-06-19 21:08:31 +09:00]] 版))
<http://lists.w3.org/Archives/Public/public-whatwg-archive/2014Jun/0061.html>

[13] [CITE[History for source - ResponsiveImagesCG/picture-element]]
( ([TIME[2014-07-01 05:01:06 +09:00]] 版))
<https://github.com/ResponsiveImagesCG/picture-element/commits/gh-pages/source>

[20] [CITE[Move the normative bits of the picture spec to the HTML spec. · 60e9bbd · ResponsiveImagesCG/picture-element]]
( ([TIME[2014-07-01 07:07:53 +09:00]] 版))
<https://github.com/ResponsiveImagesCG/picture-element/commit/60e9bbd1514d7c51dabab5fb750881e9f3e6a478>

[21] [CITE[<picture> doesn't need to be palpable content since it contains an <img> · c8b726a · ResponsiveImagesCG/picture-element]]
( ([TIME[2014-07-01 07:08:10 +09:00]] 版))
<https://github.com/ResponsiveImagesCG/picture-element/commit/c8b726afabaa0d139edac7ca657a78d212484581>

;; [22] [CODE(HTMLa)@en[[[srcset]]]] と [CODE(HTMLe)@en[[[source]]]]
も参照。

[23] [CITE@en[Remove obsolete files · 4a49661 · ResponsiveImagesCG/picture-element]]
([TIME[2015-03-03 16:18:48 +09:00]] 版)
<https://github.com/ResponsiveImagesCG/picture-element/commit/4a4966184b0b0de9a8897b5cd499f63eb8cea4df>