18790 2012-09-06 13:23:58 +0000 Describing cell for an header cell in a data table 2013-09-12 20:38:46 +0000 1 1 1 Unclassified WHATWG HTML unspecified PC Windows XP RESOLVED NEEDSINFO P2 normal Unsorted 22049 1 duboisp2 ian erika.doyle faulkner.steve ian mike public-html-admin public-html-wg-issue-tracking robin contributor oldest_to_newest 73300 0 1181 duboisp2 2012-09-06 13:23:58 +0000 Created attachment 1181 Javascript Table Parser Hi, In the Editor's Draft 4 September 2012, "Section 4.9.6 The thead element" show a method about on how to add a description to a column header cell. The "algorithm for assigning header cells" defined in the "Section 4.9.12.1 Forming a table" do not add any particular meaning to those describing cell because they are parsed with the "internal algorithm for scanning and assigning header cells", the same algorithm for parsing the real data cell. This can create a confusion between the real data cell vs. the describing cell in a table because the "internal algorithm for scanning and assigning header cells" are not considering any column group and/or any row group. ---- Describing cell for a row header cell I would like to propose an addition in the specification about on how to add a description to a row header cell in a data table. That relation can be made by using the colgroup element. See the draft of that technique: http://wet-boew.github.com/wet-boew/docs/tableparser/rowheader-description-techniques.html (FYI, the intention of that technique is for submission to the WCAG 2.0 Techniques) A note in the section "4.9.3 The colgroup element" can be added to say "the first column group (colgroup element) can be used as an header column group if inside the column group there are at least one row header cell defined inside a tbody row group. Otherwise the first column group would be a data column group." With that note, it would be possible to set a descriptive cell to a row header cell. ---- Attached: A javascript table parser that takes in consideration the row group, the column group and the placement, size of the header cell to create the relationship between each cell contained in a table. You can find the most recent version here: https://github.com/wet-boew/wet-boew/blob/master/src/js/workers/parser.table.js The following table validator use the preceding table parser. http://wet-boew.github.com/wet-boew/docs/tableparser/validator-htmltable.html FYI - Here a mailing sent to WAI Interrest Group about a request for comments in regards of the techniques mentioned here. http://lists.w3.org/Archives/Public/w3c-wai-ig/2012JulSep/0310.html Thank you :-) Pierre Dubois 74952 1 duboisp2 2012-10-01 19:15:35 +0000 See my proposal about the Table Usability Concept here: http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2012-September/037475.html :-) 76338 2 erika.doyle 2012-10-15 21:56:00 +0000 Moving this to HTML.next as we work to lock down HTML5.0 for CR. 76343 3 erika.doyle 2012-10-15 22:04:05 +0000 For future reference, it appears that some of the broken links below can be fixed by substituting "demos" for "docs" in the path. E.g., http://wet-boew.github.com/wet-boew/docs/tableparser/rowheader-description-techniques.html Is now at: http://wet-boew.github.com/wet-boew/demos/tableparser/rowheader-description-techniques.html 81710 4 robin 2013-01-21 15:59:13 +0000 Mass move to "HTML WG" 81828 5 robin 2013-01-21 16:02:00 +0000 Mass move to "HTML WG" 85650 6 faulkner.steve 2013-04-06 13:41:12 +0000 assigning this to Ian as it looks like something he would better be able to respond to. 89018 7 ian 2013-06-10 20:56:21 +0000 I don't understand the problem here. Can you describe the problem, separate from the proposed solution, ideally with a concrete example? 89112 8 duboisp2 2013-06-11 18:52:47 +0000 > Can you describe the problem, separate from the proposed solution, Define and support explanation column in a table. > ideally with a concrete example? * Hide the explanation cell to save space in the view port. Example: Show a simplified version of the table on a mobile device or on small screen. * Be able to provide an alternative way to show explanation cell. Example: Show the explanation in a tooltip when hovering the cell header. * Avoid confusion between a tabular data cell and an explanatory data cell. Example: During cell iteration in a table rows from the DOM Interface to create a new object (charts) from the data. 89493 9 ian 2013-06-18 18:55:12 +0000 (In reply to comment #8) > > Can you describe the problem, separate from the proposed solution, > > Define and support explanation column in a table. I don't understand what this means. What is an "explanation column"? Is it just a column with cells that contain text? > > ideally with a concrete example? > > * Hide the explanation cell to save space in the view port. Example: Show a > simplified version of the table on a mobile device or on small screen. This can be done today using visibility:collapse (that's in fact the reason that value exists); why is it insufficient? > * Be able to provide an alternative way to show explanation cell. Example: > Show the explanation in a tooltip when hovering the cell header. This can be done today as well, using title="". > * Avoid confusion between a tabular data cell and an explanatory data cell. Confusion by whom? > Example: During cell iteration in a table rows from the DOM Interface to > create a new object (charts) from the data. Wouldn't such a script know exactly which cells were data and which weren't? Could you show an example of a real Web page that demonstrates this problem? I'm really having trouble understanding what the issue is. 1181 2012-09-06 13:23:58 +0000 2012-09-06 13:23:58 +0000 Javascript Table Parser parser.table.js text/x-javascript 63532 duboisp2 LyohDQoqIFdlYiBFeHBlcmllbmNlIFRvb2xraXQgKFdFVCkgLyBCb8OudGUgw6Agb3V0aWxzIGRl IGwnZXhww6lyaWVuY2UgV2ViIChCT0VXKQ0KKiB3d3cudGJzLmdjLmNhL3dzLW53L3dldC1ib2V3 L3Rlcm1zIC8gd3d3LnNjdC5nYy5jYS93cy1udy93ZXQtYm9ldy9jb25kaXRpb25zDQoqLw0KLyoq DQoqIFRhYmxlIFBhcnNlciAtIFRhYmxlIHVzYWJpbGl0eSAtIENvcmUgcGx1Z2luDQoqDQoqIEBh dXRob3I6IFBpZXJyZSBEdWJvaXMNCioNCiovDQovKmdsb2JhbCBqUXVlcnk6IGZhbHNlKi8NCihm dW5jdGlvbiAoJCkgew0KCSJ1c2Ugc3RyaWN0IjsNCgl2YXIgX3BlID0gd2luZG93LnBlIHx8IHsN CgkJZm4gOiB7fQ0KCX07DQoJX3BlLmZuLnBhcnNlcnRhYmxlID0gew0KCQl0eXBlIDogJ3BsdWdp bicsDQoJCW9uUGFyc2VyRXJyb3I6IHVuZGVmaW5lZCwNCgkJX2V4ZWMgOiBmdW5jdGlvbiAoZWxt KSB7DQoJCQl2YXIgb2JqID0gZWxtLA0KCQkJLy8gRXZlbnQgaGFuZGxlciBmb3IgaXNzdWUgZXJy b3IgZm91bmQgZHVycmluZyB0aGUgdGFibGUgcGFyc2luZyBwcm9jZXNzDQoJCQkJZXJyb3JUcmln 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