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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/189702">189702</a></dd>
<dt>Author</dt> <dd>rego@igalia.com</dd>
<dt>Date</dt> <dd>2015-09-14 02:46:37 -0700 (Mon, 14 Sep 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>[css-grid] Percentage columns should remove scrollbar's width
https://bugs.webkit.org/show_bug.cgi?id=149116

Reviewed by Sergio Villar Senin.

Source/WebCore:

Currently the calculation of percentage columns was not subtracting the
scrollbar's size.
Fixed RenderGrid::computeUsedBreadthOfSpecifiedLength()
to avoid this problem.

Test: fast/css-grid-layout/grid-percent-track-scrollbar.html

* rendering/RenderGrid.cpp:
(WebCore::RenderGrid::computeUsedBreadthOfSpecifiedLength):

LayoutTests:

Added test to check the behavior for both columns and rows.
Note that rows (height) were already working fine.

* fast/css-grid-layout/grid-percent-track-scrollbar-expected.txt: Added.
* fast/css-grid-layout/grid-percent-track-scrollbar.html: Added.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderGridcpp">trunk/Source/WebCore/rendering/RenderGrid.cpp</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfastcssgridlayoutgridpercenttrackscrollbarexpectedtxt">trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar-expected.txt</a></li>
<li><a href="#trunkLayoutTestsfastcssgridlayoutgridpercenttrackscrollbarhtml">trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar.html</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (189701 => 189702)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2015-09-14 09:45:25 UTC (rev 189701)
+++ trunk/LayoutTests/ChangeLog        2015-09-14 09:46:37 UTC (rev 189702)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2015-09-14  Manuel Rego Casasnovas  &lt;rego@igalia.com&gt;
+
+        [css-grid] Percentage columns should remove scrollbar's width
+        https://bugs.webkit.org/show_bug.cgi?id=149116
+
+        Reviewed by Sergio Villar Senin.
+
+        Added test to check the behavior for both columns and rows.
+        Note that rows (height) were already working fine.
+
+        * fast/css-grid-layout/grid-percent-track-scrollbar-expected.txt: Added.
+        * fast/css-grid-layout/grid-percent-track-scrollbar.html: Added.
+
</ins><span class="cx"> 2015-09-14  Xabier Rodriguez Calvar  &lt;calvaris@igalia.com&gt;
</span><span class="cx"> 
</span><span class="cx">         [Streams API] pipe-to writable stream tests
</span></span></pre></div>
<a id="trunkLayoutTestsfastcssgridlayoutgridpercenttrackscrollbarexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar-expected.txt (0 => 189702)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar-expected.txt                                (rev 0)
+++ trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar-expected.txt        2015-09-14 09:46:37 UTC (rev 189702)
</span><span class="lines">@@ -0,0 +1,4 @@
</span><ins>+This test checks that percentage tracks reduce the grid's scrollbars if any in order to calculate their breadths.
+
+PASS
+PASS
</ins></span></pre></div>
<a id="trunkLayoutTestsfastcssgridlayoutgridpercenttrackscrollbarhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar.html (0 => 189702)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar.html                                (rev 0)
+++ trunk/LayoutTests/fast/css-grid-layout/grid-percent-track-scrollbar.html        2015-09-14 09:46:37 UTC (rev 189702)
</span><span class="lines">@@ -0,0 +1,44 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;link href=&quot;resources/grid.css&quot; rel=&quot;stylesheet&quot;&gt;
+&lt;style&gt;
+.grid {
+    width: 100px;
+    height: 100px;
+    -webkit-grid-template-columns: 20% 50% 30%;
+    -webkit-grid-template-rows: 40% 60%;
+}
+
+.scroll {
+    width: 115px;
+    height: 115px;
+    overflow: scroll;
+}
+
+&lt;/style&gt;
+&lt;script src=&quot;../../resources/check-layout.js&quot;&gt;&lt;/script&gt;
+&lt;/head&gt;
+&lt;body onload=&quot;checkLayout('.grid');&quot;&gt;
+    &lt;p&gt;This test checks that percentage tracks reduce the grid's scrollbars if any in order to calculate their breadths.&lt;/p&gt;
+
+    &lt;div class=&quot;grid&quot;&gt;
+        &lt;div data-expected-width=&quot;20&quot; data-expected-height=&quot;40&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;50&quot; data-expected-height=&quot;40&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;30&quot; data-expected-height=&quot;40&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;20&quot; data-expected-height=&quot;60&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;50&quot; data-expected-height=&quot;60&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;30&quot; data-expected-height=&quot;60&quot;&gt;&lt;/div&gt;
+    &lt;/div&gt;
+
+    &lt;div class=&quot;grid scroll&quot;&gt;
+        &lt;div data-expected-width=&quot;20&quot; data-expected-height=&quot;40&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;50&quot; data-expected-height=&quot;40&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;30&quot; data-expected-height=&quot;40&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;20&quot; data-expected-height=&quot;60&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;50&quot; data-expected-height=&quot;60&quot;&gt;&lt;/div&gt;
+        &lt;div data-expected-width=&quot;30&quot; data-expected-height=&quot;60&quot;&gt;&lt;/div&gt;
+    &lt;/div&gt;
+
+&lt;/body&gt;
+&lt;/html&gt;
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (189701 => 189702)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2015-09-14 09:45:25 UTC (rev 189701)
+++ trunk/Source/WebCore/ChangeLog        2015-09-14 09:46:37 UTC (rev 189702)
</span><span class="lines">@@ -1,3 +1,20 @@
</span><ins>+2015-09-14  Manuel Rego Casasnovas  &lt;rego@igalia.com&gt;
+
+        [css-grid] Percentage columns should remove scrollbar's width
+        https://bugs.webkit.org/show_bug.cgi?id=149116
+
+        Reviewed by Sergio Villar Senin.
+
+        Currently the calculation of percentage columns was not subtracting the
+        scrollbar's size.
+        Fixed RenderGrid::computeUsedBreadthOfSpecifiedLength()
+        to avoid this problem.
+
+        Test: fast/css-grid-layout/grid-percent-track-scrollbar.html
+
+        * rendering/RenderGrid.cpp:
+        (WebCore::RenderGrid::computeUsedBreadthOfSpecifiedLength):
+
</ins><span class="cx"> 2015-09-13  Chris Dumez  &lt;cdumez@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Improve Node pre-insertion validation when the parent is a Document
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderGridcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderGrid.cpp (189701 => 189702)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderGrid.cpp        2015-09-14 09:45:25 UTC (rev 189701)
+++ trunk/Source/WebCore/rendering/RenderGrid.cpp        2015-09-14 09:46:37 UTC (rev 189702)
</span><span class="lines">@@ -451,7 +451,7 @@
</span><span class="cx"> {
</span><span class="cx">     ASSERT(trackLength.isSpecified());
</span><span class="cx">     if (direction == ForColumns)
</span><del>-        return valueForLength(trackLength, logicalWidth() - borderAndPaddingLogicalWidth());
</del><ins>+        return valueForLength(trackLength, contentLogicalWidth());
</ins><span class="cx">     return valueForLength(trackLength, computeContentLogicalHeight(MainOrPreferredSize, style().logicalHeight(), Nullopt).valueOr(0));
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre>
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