[css-overflow] Another issue about preserve-3d overflow handling.

Author: dbaron

css-overflow/Overview.html

@@ -11,7 +11,7 @@
 
   <meta content="CSS Overflow Module Level 3" name=dcterms.title>
   <meta content=text name=dcterms.type>
-  <meta content=2014-01-28 name=dcterms.date>
+  <meta content=2014-02-10 name=dcterms.date>
   <meta content="L. David Baron" name=dcterms.creator>
   <meta content=W3C name=dcterms.publisher>
   <meta content="http://dev.w3.org/csswg/css-overflow-3/"
@@ -127,7 +127,7 @@
 
    <h1>CSS Overflow Module Level 3</h1>
 
-   <h2 class="no-num no-toc">Editor's Draft 28 January 2014</h2>
+   <h2 class="no-num no-toc">Editor's Draft 10 February 2014</h2>
 
    <dl>
     <dt>This version:
@@ -408,7 +408,7 @@ <h3 id=ink-overflow><span class=secno>2.1. </span>Ink overflow</h3>
 
   <p> Since some effects in CSS (for example, the blurs in ‘<code
    class=property>text-shadow</code>’ <a
-   href="#ref-CSS3TEXT">[CSS3TEXT]<!--{{CSS3TEXT}}--></a> and ‘<code
+   href="#ref-CSS-TEXT-3">[CSS-TEXT-3]<!--{{CSS-TEXT-3}}--></a> and ‘<code
    class=property>box-shadow</code>’ <a
    href="#ref-CSS3BG">[CSS3BG]<!--{{CSS3BG}}--></a>) do not define what
    visual extent they cover, the extent of the <a
@@ -497,6 +497,10 @@ <h3 id=scrollable-overflow><span class=secno>2.2. </span>Scrollable
   <p class=issue> I wrote this definition off the top of my head, so it can't
    possibly be right. It's missing tons of pieces!
 
+  <p class=issue> The handling of preserve-3d subtrees here is probably
+   wrong; the elements should probably count only towards the overflow of the
+   element that flattens them.
+
   <p> The <dfn id=scrollable-overflow-region>scrollable overflow region</dfn>
    is the non-rectangular region occupied by the <a
    href="#scrollable-overflow0"><i>scrollable overflow</i></a>, and the <dfn
@@ -571,7 +575,7 @@ <h2 id=overflow-properties><span class=secno>3. </span>Overflow properties</h2>
       flex containers <a
       href="#ref-CSS3-FLEXBOX">[CSS3-FLEXBOX]<!--{{!CSS3-FLEXBOX}}--></a>,
       and grid containers <a
-      href="#ref-CSS3-GRID-LAYOUT">[CSS3-GRID-LAYOUT]<!--{{!CSS3-GRID-LAYOUT}}--></a>
+      href="#ref-CSS-GRID-1">[CSS-GRID-1]<!--{{!CSS-GRID-1}}--></a>
 
     <tr>
      <th>Inherited:
@@ -637,7 +641,7 @@ <h2 id=overflow-properties><span class=secno>3. </span>Overflow properties</h2>
       flex containers <a
       href="#ref-CSS3-FLEXBOX">[CSS3-FLEXBOX]<!--{{!CSS3-FLEXBOX}}--></a>,
       and grid containers <a
-      href="#ref-CSS3-GRID-LAYOUT">[CSS3-GRID-LAYOUT]<!--{{!CSS3-GRID-LAYOUT}}--></a>
+      href="#ref-CSS-GRID-1">[CSS-GRID-1]<!--{{!CSS-GRID-1}}--></a>
 
     <tr>
      <th>Inherited:
@@ -725,15 +729,15 @@ <h2 id=overflow-properties><span class=secno>3. </span>Overflow properties</h2>
        href="#fragmenting-values"><i>fragmenting values</i></a>, then:
        <ol>
         <li> for horizontal writing mode <a
-         href="#ref-CSS3-WRITING-MODES">[CSS3-WRITING-MODES]<!--{{!CSS3-WRITING-MODES}}--></a>,
+         href="#ref-CSS-WRITING-MODES-3">[CSS-WRITING-MODES-3]<!--{{!CSS-WRITING-MODES-3}}--></a>,
          the computed value for ‘<a href="#overflow-y"><code
          class=css>overflow-y</code></a>’ is the cascaded value and the
          computed value for ‘<a href="#overflow-x"><code
          class=css>overflow-x</code></a>’ is ‘<a href="#hidden"><code
          class=css>hidden</code></a>’, or
 
         <li> for vertical writing mode <a
-         href="#ref-CSS3-WRITING-MODES">[CSS3-WRITING-MODES]<!--{{!CSS3-WRITING-MODES}}--></a>,
+         href="#ref-CSS-WRITING-MODES-3">[CSS-WRITING-MODES-3]<!--{{!CSS-WRITING-MODES-3}}--></a>,
          the computed value for ‘<a href="#overflow-x"><code
          class=css>overflow-x</code></a>’ is the cascaded value and the
          computed value for ‘<a href="#overflow-y"><code
@@ -919,8 +923,8 @@ <h2 id=fragment-overflow><span class=secno>6. </span>Fragment overflow</h2>
    in cases where the layout containing the fragments has characteristics
    that use the intrinsic size of the fragments to change the amount of space
    available for them, such as <a
-   href="#ref-CSS3-GRID-LAYOUT">[CSS3-GRID-LAYOUT]<!--{{CSS3-GRID-LAYOUT}}--></a>.
-   There has already been some work on such a processing model in <a
+   href="#ref-CSS-GRID-1">[CSS-GRID-1]<!--{{CSS-GRID-1}}--></a>. There has
+   already been some work on such a processing model in <a
    href="#ref-CSS3-REGIONS">[CSS3-REGIONS]<!--{{CSS3-REGIONS}}--></a>, and
    the work done on a model there, and the editors of that specification,
    should inform what happens in this specification.
@@ -1619,6 +1623,26 @@ <h3 class=no-num id=normative-references> Normative references</h3>
 
   <dl class=bibliography><!---->
 
+   <dt id=CSS-GRID-1>[CSS-GRID-1]
+
+   <dd>Tab Atkins Jr.; fantasai; Rossen Atanassov. <a
+    href="http://www.w3.org/TR/2014/WD-css-grid-1-20140123/"><cite>CSS Grid
+    Layout Module Level 1.</cite></a> 23 January 2014. W3C Working Draft.
+    (Work in progress.) URL: <a
+    href="http://www.w3.org/TR/2014/WD-css-grid-1-20140123/">http://www.w3.org/TR/2014/WD-css-grid-1-20140123/</a>
+   </dd>
+   <!---->
+
+   <dt id=CSS-WRITING-MODES-3>[CSS-WRITING-MODES-3]
+
+   <dd>fantasai; Koji Ishii. <a
+    href="http://www.w3.org/TR/2013/WD-css-writing-modes-3-20131126/"><cite>CSS
+    Writing Modes Level 3.</cite></a> 26 November 2013. W3C Last Call Working
+    Draft. (Work in progress.) URL: <a
+    href="http://www.w3.org/TR/2013/WD-css-writing-modes-3-20131126/">http://www.w3.org/TR/2013/WD-css-writing-modes-3-20131126/</a>
+   </dd>
+   <!---->
+
    <dt id=CSS21>[CSS21]
 
    <dd>Bert Bos; et al. <a
@@ -1632,10 +1656,10 @@ <h3 class=no-num id=normative-references> Normative references</h3>
    <dt id=CSS3-BREAK>[CSS3-BREAK]
 
    <dd>Rossen Atanassov; Elika J. Etemad. <a
-    href="http://www.w3.org/TR/2012/WD-css3-break-20120823/"><cite>CSS
-    Fragmentation Module Level 3.</cite></a> 23 August 2012. W3C Working
+    href="http://www.w3.org/TR/2014/WD-css3-break-20140116/"><cite>CSS
+    Fragmentation Module Level 3.</cite></a> 16 January 2014. W3C Working
     Draft. (Work in progress.) URL: <a
-    href="http://www.w3.org/TR/2012/WD-css3-break-20120823/">http://www.w3.org/TR/2012/WD-css3-break-20120823/</a>
+    href="http://www.w3.org/TR/2014/WD-css3-break-20140116/">http://www.w3.org/TR/2014/WD-css3-break-20140116/</a>
    </dd>
    <!---->
 
@@ -1649,16 +1673,6 @@ <h3 class=no-num id=normative-references> Normative references</h3>
    </dd>
    <!---->
 
-   <dt id=CSS3-GRID-LAYOUT>[CSS3-GRID-LAYOUT]
-
-   <dd>Tab Atkins Jr.; fantasai; Rossen Atanassov. <a
-    href="http://www.w3.org/TR/2013/WD-css3-grid-layout-20130910/"><cite>CSS
-    Grid Layout Module Level 1.</cite></a> 10 September 2013. W3C Working
-    Draft. (Work in progress.) URL: <a
-    href="http://www.w3.org/TR/2013/WD-css3-grid-layout-20130910/">http://www.w3.org/TR/2013/WD-css3-grid-layout-20130910/</a>
-   </dd>
-   <!---->
-
    <dt id=CSS3-TRANSFORMS>[CSS3-TRANSFORMS]
 
    <dd>Simon Fraser; et al. <a
@@ -1669,16 +1683,6 @@ <h3 class=no-num id=normative-references> Normative references</h3>
    </dd>
    <!---->
 
-   <dt id=CSS3-WRITING-MODES>[CSS3-WRITING-MODES]
-
-   <dd>Elika J. Etemad; Koji Ishii. <a
-    href="http://www.w3.org/TR/2012/WD-css3-writing-modes-20121115/"><cite>CSS
-    Writing Modes Module Level 3.</cite></a> 15 November 2012. W3C Working
-    Draft. (Work in progress.) URL: <a
-    href="http://www.w3.org/TR/2012/WD-css3-writing-modes-20121115/">http://www.w3.org/TR/2012/WD-css3-writing-modes-20121115/</a>
-   </dd>
-   <!---->
-
    <dt id=CSS3CASCADE>[CSS3CASCADE]
 
    <dd>Håkon Wium Lie; fantasai; Tab Atkins Jr. <a
@@ -1725,6 +1729,16 @@ <h3 class=no-num id=other-references> Other references</h3>
 
   <dl class=bibliography><!---->
 
+   <dt id=CSS-TEXT-3>[CSS-TEXT-3]
+
+   <dd>Elika J. Etemad; Koji Ishii. <a
+    href="http://www.w3.org/TR/2013/WD-css-text-3-20131010/"><cite>CSS Text
+    Module Level 3.</cite></a> 10 October 2013. W3C Last Call Working Draft.
+    (Work in progress.) URL: <a
+    href="http://www.w3.org/TR/2013/WD-css-text-3-20131010/">http://www.w3.org/TR/2013/WD-css-text-3-20131010/</a>
+   </dd>
+   <!---->
+
    <dt id=CSS1>[CSS1]
 
    <dd>Håkon Wium Lie; Bert Bos. <a
@@ -1758,10 +1772,10 @@ <h3 class=no-num id=other-references> Other references</h3>
    <dt id=CSS3BG>[CSS3BG]
 
    <dd>Bert Bos; Elika J. Etemad; Brad Kemper. <a
-    href="http://www.w3.org/TR/2012/CR-css3-background-20120724/"><cite>CSS
-    Backgrounds and Borders Module Level 3.</cite></a> 24 July 2012. W3C
-    Candidate Recommendation. (Work in progress.) URL: <a
-    href="http://www.w3.org/TR/2012/CR-css3-background-20120724/">http://www.w3.org/TR/2012/CR-css3-background-20120724/</a>
+    href="http://www.w3.org/TR/2014/WD-css3-background-20140204/"><cite>CSS
+    Backgrounds and Borders Module Level 3.</cite></a> 4 February 2014. W3C
+    Last Call Working Draft. (Work in progress.) URL: <a
+    href="http://www.w3.org/TR/2014/WD-css3-background-20140204/">http://www.w3.org/TR/2014/WD-css3-background-20140204/</a>
    </dd>
    <!---->
 
@@ -1793,16 +1807,6 @@ <h3 class=no-num id=other-references> Other references</h3>
     href="http://www.w3.org/TR/2011/WD-css3-gcpm-20111129/">http://www.w3.org/TR/2011/WD-css3-gcpm-20111129/</a>
    </dd>
    <!---->
-
-   <dt id=CSS3TEXT>[CSS3TEXT]
-
-   <dd>Elika J. Etemad; Koji Ishii. <a
-    href="http://www.w3.org/TR/2012/WD-css3-text-20121113/"><cite>CSS Text
-    Module Level 3.</cite></a> 13 November 2012. W3C Working Draft. (Work in
-    progress.) URL: <a
-    href="http://www.w3.org/TR/2012/WD-css3-text-20121113/">http://www.w3.org/TR/2012/WD-css3-text-20121113/</a>
-   </dd>
-   <!---->
   </dl>
   <!--end-informative-->
 
@@ -1950,7 +1954,7 @@ <h2 class=no-num id=property-index> Property index</h2>
      <td>see individual properties
 
      <td>block containers [CSS21], flex containers [CSS3-FLEXBOX], and grid
-      containers [CSS3-GRID-LAYOUT]
+      containers [CSS-GRID-1]
 
      <td>no
 
@@ -1967,7 +1971,7 @@ <h2 class=no-num id=property-index> Property index</h2>
      <td>visible
 
      <td>block containers [CSS21], flex containers [CSS3-FLEXBOX], and grid
-      containers [CSS3-GRID-LAYOUT]
+      containers [CSS-GRID-1]
 
      <td>no
 
@@ -1984,7 +1988,7 @@ <h2 class=no-num id=property-index> Property index</h2>
      <td>visible
 
      <td>block containers [CSS21], flex containers [CSS3-FLEXBOX], and grid
-      containers [CSS3-GRID-LAYOUT]
+      containers [CSS-GRID-1]
 
      <td>no
 

css-overflow/Overview.src.html

@@ -372,6 +372,12 @@ <h3 id="scrollable-overflow">Scrollable overflow</h3>
 		It's missing tons of pieces!
 	</p>
 
+	<p class="issue">
+		The handling of preserve-3d subtrees here is probably wrong;
+		the elements should probably count
+		only towards the overflow of the element that flattens them.
+	</p>
+
 	<p>
 		The <dfn>scrollable overflow region</dfn> is the non-rectangular region
 		occupied by the <i>scrollable overflow</i>, and the