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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/192428">192428</a></dd>
<dt>Author</dt> <dd>matthew_hanson@apple.com</dd>
<dt>Date</dt> <dd>2015-11-13 09:03:47 -0800 (Fri, 13 Nov 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/192120">r192120</a>. rdar://problem/23189774</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari601146branchLayoutTestsChangeLog">branches/safari-601.1.46-branch/LayoutTests/ChangeLog</a></li>
<li><a href="#branchessafari601146branchSourceWebCoreChangeLog">branches/safari-601.1.46-branch/Source/WebCore/ChangeLog</a></li>
<li><a href="#branchessafari601146branchSourceWebCorerenderingRenderBlockLineLayoutcpp">branches/safari-601.1.46-branch/Source/WebCore/rendering/RenderBlockLineLayout.cpp</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#branchessafari601146branchLayoutTestsfasttextrubyjustifytatechuyokoexpectedhtml">branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko-expected.html</a></li>
<li><a href="#branchessafari601146branchLayoutTestsfasttextrubyjustifytatechuyokohtml">branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko.html</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari601146branchLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/LayoutTests/ChangeLog (192427 => 192428)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/ChangeLog        2015-11-13 17:03:43 UTC (rev 192427)
+++ branches/safari-601.1.46-branch/LayoutTests/ChangeLog        2015-11-13 17:03:47 UTC (rev 192428)
</span><span class="lines">@@ -1,5 +1,19 @@
</span><span class="cx"> 2015-11-13  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Merge r192120. rdar://problem/23189774
+
+    2015-11-06  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
+
+            REGRESSION(r182286): Tatechuyoko following ruby is drawn too far to the right
+            https://bugs.webkit.org/show_bug.cgi?id=150923
+
+            Reviewed by Zalan Bujtas.
+
+            * fast/text/ruby-justify-tatechuyoko-expected.html: Added.
+            * fast/text/ruby-justify-tatechuyoko.html: Added.
+
+2015-11-13  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
</ins><span class="cx">         Merge r192042. rdar://problem/23189765
</span><span class="cx"> 
</span><span class="cx">     2015-11-03  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
</span></span></pre></div>
<a id="branchessafari601146branchLayoutTestsfasttextrubyjustifytatechuyokoexpectedhtml"></a>
<div class="addfile"><h4>Added: branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko-expected.html (0 => 192428)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko-expected.html                                (rev 0)
+++ branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko-expected.html        2015-11-13 17:03:47 UTC (rev 192428)
</span><span class="lines">@@ -0,0 +1,10 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;meta charset=&quot;UTF-8&quot;&gt;
+&lt;/head&gt;
+&lt;body&gt;
+This test makes sure that tatechuyoko which directly follows ruby is properly left-aligned.
+&lt;div style=&quot;text-align: justify; max-height: 7em; font-size: 40px; -webkit-writing-mode: vertical-rl;&quot; lang=&quot;ja&quot;&gt;この文章&lt;span style=&quot;-webkit-text-combine: horizontal;&quot;&gt;99&lt;/span&gt;は斜下付サンプルです。&lt;/div&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins><span class="cx">Property changes on: branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko-expected.html
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnexecutable"></a>
<div class="addfile"><h4>Added: svn:executable</h4></div>
<a id="branchessafari601146branchLayoutTestsfasttextrubyjustifytatechuyokohtml"></a>
<div class="addfile"><h4>Added: branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko.html (0 => 192428)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko.html                                (rev 0)
+++ branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko.html        2015-11-13 17:03:47 UTC (rev 192428)
</span><span class="lines">@@ -0,0 +1,10 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;meta charset=&quot;UTF-8&quot;&gt;
+&lt;/head&gt;
+&lt;body&gt;
+This test makes sure that tatechuyoko which directly follows ruby is properly left-aligned.
+&lt;div style=&quot;text-align: justify; max-height: 7em; font-size: 40px; -webkit-writing-mode: vertical-rl;&quot; lang=&quot;ja&quot;&gt;この&lt;ruby&gt;文章&lt;rt style=&quot;color: white;&quot;&gt;ルビ&lt;/rt&gt;&lt;/ruby&gt;&lt;span style=&quot;-webkit-text-combine: horizontal;&quot;&gt;99&lt;/span&gt;は斜下付サンプルです。&lt;/div&gt;
+&lt;/body&gt;
+&lt;/html&gt;
</ins><span class="cx">Property changes on: branches/safari-601.1.46-branch/LayoutTests/fast/text/ruby-justify-tatechuyoko.html
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnexecutable"></a>
<div class="addfile"><h4>Added: svn:executable</h4></div>
<a id="branchessafari601146branchSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/ChangeLog (192427 => 192428)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/ChangeLog        2015-11-13 17:03:43 UTC (rev 192427)
+++ branches/safari-601.1.46-branch/Source/WebCore/ChangeLog        2015-11-13 17:03:47 UTC (rev 192428)
</span><span class="lines">@@ -1,5 +1,28 @@
</span><span class="cx"> 2015-11-13  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Merge r192120. rdar://problem/23189774
+
+    2015-11-06  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
+
+            REGRESSION(r182286): Tatechuyoko following ruby is drawn too far to the right
+            https://bugs.webkit.org/show_bug.cgi?id=150923
+
+            Reviewed by Zalan Bujtas.
+
+            Ever since r182286, expansion opportunities in justified ruby were moved to their neighboring
+            elements (thereby forbidding trailing nor leading expansions inside ruby). However, when the
+            neighboring element is tatechuyoko, we will erroneously honor the expansion opportunity inside
+            the tatechuyoko, thereby moving it horizontally.
+
+            Tatechuyoko should never have expansion opportunities inside it.
+
+            Test: fast/text/ruby-justify-tatechuyoko.html
+
+            * rendering/RenderBlockLineLayout.cpp:
+            (WebCore::expansionBehaviorForInlineTextBox):
+
+2015-11-13  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
</ins><span class="cx">         Merge r192042. rdar://problem/23189765
</span><span class="cx"> 
</span><span class="cx">     2015-11-03  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
</span></span></pre></div>
<a id="branchessafari601146branchSourceWebCorerenderingRenderBlockLineLayoutcpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/rendering/RenderBlockLineLayout.cpp (192427 => 192428)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/rendering/RenderBlockLineLayout.cpp        2015-11-13 17:03:43 UTC (rev 192427)
+++ branches/safari-601.1.46-branch/Source/WebCore/rendering/RenderBlockLineLayout.cpp        2015-11-13 17:03:47 UTC (rev 192428)
</span><span class="lines">@@ -720,12 +720,15 @@
</span><span class="cx"> 
</span><span class="cx"> static inline ExpansionBehavior expansionBehaviorForInlineTextBox(RenderBlockFlow&amp; block, InlineTextBox&amp; textBox, BidiRun* previousRun, BidiRun* nextRun, ETextAlign textAlign, bool isAfterExpansion)
</span><span class="cx"> {
</span><ins>+    // Tatechuyoko is modeled as the Object Replacement Character (U+FFFC), which can never have expansion opportunities inside nor intrinsically adjacent to it.
+    if (textBox.renderer().style().textCombine() == TextCombineHorizontal)
+        return ForbidLeadingExpansion | ForbidTrailingExpansion;
+
</ins><span class="cx">     ExpansionBehavior result = 0;
</span><span class="cx">     bool setLeadingExpansion = false;
</span><span class="cx">     bool setTrailingExpansion = false;
</span><span class="cx">     if (textAlign == JUSTIFY) {
</span><del>-        // If the next box is ruby, and we're justifying, and the first box in the ruby base has a leading expansion, and we are a text box, then
-        // force a trailing expansion.
</del><ins>+        // If the next box is ruby, and we're justifying, and the first box in the ruby base has a leading expansion, and we are a text box, then force a trailing expansion.
</ins><span class="cx">         if (nextRun &amp;&amp; is&lt;RenderRubyRun&gt;(nextRun-&gt;renderer()) &amp;&amp; downcast&lt;RenderRubyRun&gt;(nextRun-&gt;renderer()).rubyBase() &amp;&amp; nextRun-&gt;renderer().style().collapseWhiteSpace()) {
</span><span class="cx">             auto&amp; rubyBase = *downcast&lt;RenderRubyRun&gt;(nextRun-&gt;renderer()).rubyBase();
</span><span class="cx">             if (rubyBase.firstRootBox() &amp;&amp; !rubyBase.firstRootBox()-&gt;nextRootBox()) {
</span></span></pre>
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