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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/193829">193829</a></dd>
<dt>Author</dt> <dd>fred.wang@free.fr</dd>
<dt>Date</dt> <dd>2015-12-09 06:46:11 -0800 (Wed, 09 Dec 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Bad position of large operators inside an munderover element
https://bugs.webkit.org/show_bug.cgi?id=151916
Reviewed by Alejandro G. Castro.
Source/WebCore:
Test: mathml/opentype/large-operators-munderover.html
* rendering/mathml/RenderMathMLOperator.h:
(WebCore::RenderMathMLOperator::isVertical): Expose the direction of the operator.
* rendering/mathml/RenderMathMLUnderOver.cpp:
(WebCore::RenderMathMLUnderOver::layout): Remove call to horizontal stretching for vertical operators.
LayoutTests:
* mathml/opentype/large-operators-munderover-expected.txt: Added.
* mathml/opentype/large-operators-munderover.html: Added.
Add a test to verify the position and size of a large operator used as an munderover base.</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="#trunkSourceWebCorerenderingmathmlRenderMathMLOperatorh">trunk/Source/WebCore/rendering/mathml/RenderMathMLOperator.h</a></li>
<li><a href="#trunkSourceWebCorerenderingmathmlRenderMathMLUnderOvercpp">trunk/Source/WebCore/rendering/mathml/RenderMathMLUnderOver.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsmathmlopentypelargeoperatorsmunderoverexpectedtxt">trunk/LayoutTests/mathml/opentype/large-operators-munderover-expected.txt</a></li>
<li><a href="#trunkLayoutTestsmathmlopentypelargeoperatorsmunderoverhtml">trunk/LayoutTests/mathml/opentype/large-operators-munderover.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (193828 => 193829)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2015-12-09 14:03:34 UTC (rev 193828)
+++ trunk/LayoutTests/ChangeLog 2015-12-09 14:46:11 UTC (rev 193829)
</span><span class="lines">@@ -1,3 +1,15 @@
</span><ins>+2015-12-09 Frederic Wang <fred.wang@free.fr>
+
+ Bad position of large operators inside an munderover element
+ https://bugs.webkit.org/show_bug.cgi?id=151916
+
+ Reviewed by Alejandro G. Castro.
+
+ * mathml/opentype/large-operators-munderover-expected.txt: Added.
+ * mathml/opentype/large-operators-munderover.html: Added.
+
+ Add a test to verify the position and size of a large operator used as an munderover base.
+
</ins><span class="cx"> 2015-12-09 Joanmarie Diggs <jdiggs@igalia.com>
</span><span class="cx">
</span><span class="cx"> [AX][GTK] Accessibility gardening
</span></span></pre></div>
<a id="trunkLayoutTestsmathmlopentypelargeoperatorsmunderoverexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/mathml/opentype/large-operators-munderover-expected.txt (0 => 193829)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/mathml/opentype/large-operators-munderover-expected.txt (rev 0)
+++ trunk/LayoutTests/mathml/opentype/large-operators-munderover-expected.txt 2015-12-09 14:46:11 UTC (rev 193829)
</span><span class="lines">@@ -0,0 +1,7 @@
</span><ins>+This test passes if you see a large black square with a green bar overscript and a red bar underscript.
+
+largeop width: PASS
+largeop height: PASS
+green bar is above: PASS
+red bar is below: PASS
+
</ins><span class="cx">Property changes on: trunk/LayoutTests/mathml/opentype/large-operators-munderover-expected.txt
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkLayoutTestsmathmlopentypelargeoperatorsmunderoverhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/mathml/opentype/large-operators-munderover.html (0 => 193829)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/mathml/opentype/large-operators-munderover.html (rev 0)
+++ trunk/LayoutTests/mathml/opentype/large-operators-munderover.html 2015-12-09 14:46:11 UTC (rev 193829)
</span><span class="lines">@@ -0,0 +1,54 @@
</span><ins>+<!doctype html>
+<html>
+ <head>
+ <title>Large Operator Munderover</title>
+ <meta charset="utf-8"/>
+ <style type="text/css">
+ /* This font is taken from Mozilla's test suite. */
+ @font-face {
+ font-family: stretchy;
+ src: url("stretchy.woff");
+ }
+ math {
+ font-family: stretchy;
+ }
+ </style>
+ <script>
+ var result;
+ var epsilon = 1;
+ function almostEqual(x, y) {
+ return Math.abs(x - y) < epsilon;
+ }
+ function assert(text, condition) {
+ result += text + ": " + (condition ? "PASS" : "FAIL") + "\n";
+ }
+ function test() {
+ result = "";
+ // font em is 1024, size of glyph L8 is 8389 and font-size is 16px
+ var largeop = document.getElementById("largeop").getBoundingClientRect();
+ var green = document.getElementById("green").getBoundingClientRect();
+ var red = document.getElementById("red").getBoundingClientRect();
+ var size = (8389/1024)*16;
+
+ assert("largeop width", almostEqual(largeop.width, size));
+ assert("largeop height", almostEqual(largeop.height, size));
+ assert("green bar is above", green.bottom <= largeop.top);
+ assert("red bar is below", red.top >= largeop.bottom);
+ document.getElementById("result").innerText = result;
+ if (window.testRunner)
+ testRunner.dumpAsText();
+ }
+ </script>
+ </head>
+ <body onload="test()">
+ <p>This test passes if you see a large black square with a green bar overscript and a red bar underscript.</p>
+ <math display="block">
+ <munderover>
+ <mo id="largeop" lspace="0px" rspace="0px" style="font-size: 16px;" >&#x2A1C;</mo>
+ <mspace id="red" width="200px" height="10px" depth="10px" mathbackground="red"/>
+ <mspace id="green" width="250px" height="10px" depth="10px" mathbackground="green"/>
+ </munderover>
+ </math>
+ <div id="result"></div>
+ </body>
+</html>
</ins><span class="cx">Property changes on: trunk/LayoutTests/mathml/opentype/large-operators-munderover.html
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (193828 => 193829)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2015-12-09 14:03:34 UTC (rev 193828)
+++ trunk/Source/WebCore/ChangeLog 2015-12-09 14:46:11 UTC (rev 193829)
</span><span class="lines">@@ -1,3 +1,17 @@
</span><ins>+2015-12-09 Frederic Wang <fred.wang@free.fr>
+
+ Bad position of large operators inside an munderover element
+ https://bugs.webkit.org/show_bug.cgi?id=151916
+
+ Reviewed by Alejandro G. Castro.
+
+ Test: mathml/opentype/large-operators-munderover.html
+
+ * rendering/mathml/RenderMathMLOperator.h:
+ (WebCore::RenderMathMLOperator::isVertical): Expose the direction of the operator.
+ * rendering/mathml/RenderMathMLUnderOver.cpp:
+ (WebCore::RenderMathMLUnderOver::layout): Remove call to horizontal stretching for vertical operators.
+
</ins><span class="cx"> 2015-12-09 Zan Dobersek <zdobersek@igalia.com>
</span><span class="cx">
</span><span class="cx"> [TexMap] TextureMapperTiledBackingStore should notify the ImageObserver of the data access
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingmathmlRenderMathMLOperatorh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/mathml/RenderMathMLOperator.h (193828 => 193829)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/mathml/RenderMathMLOperator.h 2015-12-09 14:03:34 UTC (rev 193828)
+++ trunk/Source/WebCore/rendering/mathml/RenderMathMLOperator.h 2015-12-09 14:46:11 UTC (rev 193829)
</span><span class="lines">@@ -71,6 +71,7 @@
</span><span class="cx"> bool hasOperatorFlag(MathMLOperatorDictionary::Flag flag) const { return m_operatorFlags & flag; }
</span><span class="cx"> // FIXME: The displaystyle property is not implemented (https://bugs.webkit.org/show_bug.cgi?id=118737).
</span><span class="cx"> bool isLargeOperatorInDisplayStyle() const { return !hasOperatorFlag(MathMLOperatorDictionary::Stretchy) && hasOperatorFlag(MathMLOperatorDictionary::LargeOp); }
</span><ins>+ bool isVertical() const { return m_isVertical; }
</ins><span class="cx">
</span><span class="cx"> virtual void updateStyle() override final;
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingmathmlRenderMathMLUnderOvercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/mathml/RenderMathMLUnderOver.cpp (193828 => 193829)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/mathml/RenderMathMLUnderOver.cpp 2015-12-09 14:03:34 UTC (rev 193828)
+++ trunk/Source/WebCore/rendering/mathml/RenderMathMLUnderOver.cpp 2015-12-09 14:46:11 UTC (rev 193829)
</span><span class="lines">@@ -80,8 +80,10 @@
</span><span class="cx"> if (child->needsLayout()) {
</span><span class="cx"> if (is<RenderMathMLBlock>(child)) {
</span><span class="cx"> if (auto renderOperator = downcast<RenderMathMLBlock>(*child).unembellishedOperator()) {
</span><del>- renderOperator->resetStretchSize();
- renderOperators.append(renderOperator);
</del><ins>+ if (!renderOperator->isVertical()) {
+ renderOperator->resetStretchSize();
+ renderOperators.append(renderOperator);
+ }
</ins><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx">
</span></span></pre>
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