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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/213523">213523</a></dd>
<dt>Author</dt> <dd>hyatt@apple.com</dd>
<dt>Date</dt> <dd>2017-03-07 09:59:13 -0800 (Tue, 07 Mar 2017)</dd>
</dl>
<h3>Log Message</h3>
<pre>Animated GIFs fail to play in multi-column layout
https://bugs.webkit.org/show_bug.cgi?id=167901
<rdar://problem/30382262>
Reviewed by Zalan Bujtas.
* rendering/RenderBox.cpp:
(WebCore::RenderBox::computeRectForRepaint):
Make sure to handle the case where we pass in a null repaintContainer and need
to cross a multicolumn flow thread -> region boundary as a result.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderBoxcpp">trunk/Source/WebCore/rendering/RenderBox.cpp</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (213522 => 213523)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2017-03-07 17:33:45 UTC (rev 213522)
+++ trunk/Source/WebCore/ChangeLog 2017-03-07 17:59:13 UTC (rev 213523)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2017-03-07 Dave Hyatt <hyatt@apple.com>
+
+ Animated GIFs fail to play in multi-column layout
+ https://bugs.webkit.org/show_bug.cgi?id=167901
+ <rdar://problem/30382262>
+
+ Reviewed by Zalan Bujtas.
+
+ * rendering/RenderBox.cpp:
+ (WebCore::RenderBox::computeRectForRepaint):
+ Make sure to handle the case where we pass in a null repaintContainer and need
+ to cross a multicolumn flow thread -> region boundary as a result.
+
</ins><span class="cx"> 2017-03-07 Fujii Hironori <Hironori.Fujii@sony.com>
</span><span class="cx">
</span><span class="cx"> ShadowBlur::calculateLayerBoundingRect doesn't need to return the enclosingIntRect of layerRect
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderBoxcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderBox.cpp (213522 => 213523)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderBox.cpp 2017-03-07 17:33:45 UTC (rev 213522)
+++ trunk/Source/WebCore/rendering/RenderBox.cpp 2017-03-07 17:59:13 UTC (rev 213523)
</span><span class="lines">@@ -59,6 +59,7 @@
</span><span class="cx"> #include "RenderIterator.h"
</span><span class="cx"> #include "RenderLayer.h"
</span><span class="cx"> #include "RenderLayerCompositor.h"
</span><ins>+#include "RenderMultiColumnFlowThread.h"
</ins><span class="cx"> #include "RenderNamedFlowFragment.h"
</span><span class="cx"> #include "RenderNamedFlowThread.h"
</span><span class="cx"> #include "RenderTableCell.h"
</span><span class="lines">@@ -2296,6 +2297,21 @@
</span><span class="cx"> adjustedRect.expand(locationOffset - flooredLocationOffset);
</span><span class="cx"> locationOffset = flooredLocationOffset;
</span><span class="cx"> }
</span><ins>+
+ if (is<RenderMultiColumnFlowThread>(this)) {
+ // We won't normally run this code. Only when the repaintContainer is null (i.e., we're trying
+ // to get the rect in view coordinates) will we come in here, since normally repaintContainer
+ // will be set and we'll stop at the flow thread. This case is mainly hit by the check for whether
+ // or not images should animate.
+ // FIXME: Just as with offsetFromContainer, we aren't really handling objects that span
+ // multiple columns properly.
+ LayoutPoint physicalPoint(flipForWritingMode(adjustedRect.location()));
+ if (auto* region = downcast<RenderMultiColumnFlowThread>(*this).physicalTranslationFromFlowToRegion((physicalPoint))) {
+ adjustedRect.setLocation(region->flipForWritingMode(physicalPoint));
+ return region->computeRectForRepaint(adjustedRect, repaintContainer, context);
+ }
+ }
+
</ins><span class="cx"> LayoutPoint topLeft = adjustedRect.location();
</span><span class="cx"> topLeft.move(locationOffset);
</span><span class="cx">
</span></span></pre>
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