- From: Gérard Talbot <www-style@gtalbot.org>
- Date: Tue, 20 Aug 2013 17:27:44 -0400
- To: "W3C www-style mailing list" <www-style@w3.org>
Hello, [test] http://test.csswg.org/source/contributors/opera/submitted/multicol/multicol-span-all-margin-nested-003.xht In this test, the available width is unknown. So, we start with (09) if (available-width = unknown) then (10) available-width := shrink-to-fit; 3.4. Pseudo-algorithm http://www.w3.org/TR/css3-multicol/#pseudo-algorithm and then follow and apply: shrink-to-fit width is: min(max(preferred minimum width, available width), preferred width). http://www.w3.org/TR/CSS21/visudet.html#shrink-to-fit-float in which case: min(max(preferred minimum width, available width), preferred width) min(max(4em, body's available width), 19em) min(body available width, 19em) and so shrink-to-fit width should be 19em (which is 4 FAIL words separated with 3 preserved white spaces). Then what do we do with the rest of the pseudo-algorithm? Should we continue with calculation of column box width? (13) W := max(0, (available-width - ((N - 1) * column-gap)) / N); I ask because the reftest http://test.csswg.org/source/contributors/opera/submitted/multicol/multicol-span-all-margin-nested-3-ref.xht for the test gives a total width for the multi-column of 22em and not 19em. So where does such 22em comes from? Normally, the available-width includes the column-gapS: that's why the equation at line 13 substracts the column-gapS before dividing by number of columns. If 19em should be the correct width for the black rectangular area, then (after adding -webkit- vendor prefix) Chrome 28 would pass that test . --------- I have been working on 2 other versions/variations [1] of that test. I can see what Chrome 28 and Opera 12.16 do ... but I can not figure out which one is right or wrong: any of the 2 could be right or wrong. I think the pseudo-algorithm needs some tuning here. [1] [test variation A] http://www.gtalbot.org/BrowserBugsSection/CSS3Multi-Columns/Opera/multicol-span-all-margin-nested-003-GT.xht [reftest variation A] http://www.gtalbot.org/BrowserBugsSection/CSS3Multi-Columns/Opera/multicol-span-all-margin-nested-003-GT-ref.xht [test (old version)] http://www.gtalbot.org/BrowserBugsSection/CSS3Multi-Columns/multicol-span-all-margin-nested-003-GT-previous.xht [reftest (old version)] http://www.gtalbot.org/BrowserBugsSection/CSS3Multi-Columns/multicol-span-all-margin-nested-003-GT-previous.xht Gérard -- CSS 2.1 Test suite RC6, March 23rd 2011 http://test.csswg.org/suites/css2.1/20110323/html4/toc.html Contributions to CSS 2.1 test suite http://www.gtalbot.org/BrowserBugsSection/css21testsuite/ Web authors' contributions to CSS 2.1 test suite http://www.gtalbot.org/BrowserBugsSection/css21testsuite/web-authors-contributions-css21-testsuite.html
Received on Tuesday, 20 August 2013 21:28:15 UTC