[css-writing-modes] Add max-size as a constraint on orthogonal flows' auto size, per WG resolution. #1391

Author: fantasai

css-writing-modes-3/Overview.bs

@@ -2031,8 +2031,9 @@ Available Space in Orthogonal Flows</h4>
     In such cases a percentage of the containing block’s <i>inline size</i> cannot be defined,
     and <i>inline axis</i> computations cannot be resolved.
     In these cases, the smaller of
-    the nearest fixed-size ancestor <a>scrollport</a>’s size (if any)
-    or the initial containing block’s size
+    the initial containing block’s size or
+    the nearest ancestor <a>scrollport</a>’s inner size
+    if that size is fixed (else its inner max-size, if that is fixed)
     is used as a <i>fallback</i>
     in place of the <i>available inline space</i>
     for calculations that require a definite <i>available inline space</i>.

css-writing-modes-3/issues-cr-2015.bs-issues

@@ -163,6 +163,8 @@ Comment:  https://github.com/w3c/csswg-drafts/issues/1391
 Response: https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-303775875
 Comment:  https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-316529430
 Response: https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-320215251
+Comment:  https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-330713088
+Response: https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-332581365
 Closed:   Accepted
 Resolved: https://lists.w3.org/Archives/Public/www-style/2017Sep/0001.html
 Verified: Reporter is editor

css-writing-modes-3/issues-cr-2015.html

@@ -196,6 +196,8 @@ <h1>CSS Writing Modes Level 3 Disposition of Comments for 2015-12-15 CR</h1>
 <span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-303775875'>https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-303775875</a></span>
 <span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-316529430'>https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-316529430</a></span>
 <span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-320215251'>https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-320215251</a></span>
+<span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-330713088'>https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-330713088</a></span>
+<span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-332581365'>https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-332581365</a></span>
 <span class="a">Closed:   Accepted</span>
 <span>Resolved: <a href='https://lists.w3.org/Archives/Public/www-style/2017Sep/0001.html'>https://lists.w3.org/Archives/Public/www-style/2017Sep/0001.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2017Sep/0001.html"><abbr title="Thread">&#x2208;</abbr></a></span>
 <span class="a">Verified: Reporter is editor</span></pre>

css-writing-modes/Overview.bs

@@ -2095,7 +2095,7 @@ Auto-sizing Block Containers in Orthogonal Flows</h4>
         that would <a>stretch fit</a> into to the smaller of
         <ul>
           <li>the <i>available space</i>
-          <li>the nearest fixed-size ancestor <a>scrollport</a>’s inner size
+          <li>the nearest ancestor <a>scrollport</a>’s inner size if that is fixed, else its inner max-size if that is fixed
           <li>the initial containing block’s size
       </dl>