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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/178192">178192</a></dd>
<dt>Author</dt> <dd>bjonesbe@adobe.com</dd>
<dt>Date</dt> <dd>2015-01-09 13:01:53 -0800 (Fri, 09 Jan 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>[CSS Shapes] content inside second shape area when two floats interact
https://bugs.webkit.org/show_bug.cgi?id=137702

Reviewed by Zalan Bujtas.

Source/WebCore:

If a float has a shape-outside, we cannot assume that it has a uniform
width for the height of the float, so we cannot use simple line
layout.

Test: fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html

* rendering/SimpleLineLayout.cpp:
(WebCore::SimpleLineLayout::canUseFor): Don't use simple line layout
    if we have shape-outside. Also, rename floatRenderer to
    floatingObject, since the variable doesn't contain a renderer.

LayoutTests:

* fast/shapes/shape-outside-floats/shape-outside-text-overlap-float-expected.html: Added.
* fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.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="#trunkSourceWebCorerenderingSimpleLineLayoutcpp">trunk/Source/WebCore/rendering/SimpleLineLayout.cpp</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfastshapesshapeoutsidefloatsshapeoutsidetextoverlapfloatexpectedhtml">trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float-expected.html</a></li>
<li><a href="#trunkLayoutTestsfastshapesshapeoutsidefloatsshapeoutsidetextoverlapfloathtml">trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (178191 => 178192)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2015-01-09 20:59:05 UTC (rev 178191)
+++ trunk/LayoutTests/ChangeLog        2015-01-09 21:01:53 UTC (rev 178192)
</span><span class="lines">@@ -1,3 +1,13 @@
</span><ins>+2015-01-09  Bem Jones-Bey  &lt;bjonesbe@adobe.com&gt;
+
+        [CSS Shapes] content inside second shape area when two floats interact
+        https://bugs.webkit.org/show_bug.cgi?id=137702
+
+        Reviewed by Zalan Bujtas.
+
+        * fast/shapes/shape-outside-floats/shape-outside-text-overlap-float-expected.html: Added.
+        * fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html: Added.
+
</ins><span class="cx"> 2015-01-09  Chris Dumez  &lt;cdumez@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Allow HTTPS + 'Cache-control: no-store' sub-frames into the page cache
</span></span></pre></div>
<a id="trunkLayoutTestsfastshapesshapeoutsidefloatsshapeoutsidetextoverlapfloatexpectedhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float-expected.html (0 => 178192)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float-expected.html                                (rev 0)
+++ trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float-expected.html        2015-01-09 21:01:53 UTC (rev 178192)
</span><span class="lines">@@ -0,0 +1,57 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;style&gt;
+    #container {
+      font: 10px/1 Ahem;
+      width: 40px;
+      position: relative;
+    }
+
+    #left-triangle, #right-triangle {
+      position: absolute;
+      top: 0px;
+      width: 20px;
+      height: 20px;
+      background-color: green;
+    }
+
+    #left-triangle {
+      left: 0px;
+      -webkit-clip-path: polygon(0 0, 100% 100%, 0 100%);
+    }
+
+    #right-triangle {
+      right: 0px;
+      -webkit-clip-path: polygon(100% 0, 100% 100%, 0 100%);
+    }
+
+    .top {
+      width: 10px;
+      height: 10px;
+    }
+
+    .bottom {
+      width: 20px;
+      height: 10px;
+    }
+
+    .left {
+      float: left;
+    }
+
+    .right {
+      float: right;
+    }
+&lt;/style&gt;
+&lt;body&gt;
+    &lt;p&gt;The black rectangles should not overlap the green trianges.&lt;/p&gt;
+    &lt;div id=&quot;container&quot;&gt;
+        &lt;div id=&quot;left-triangle&quot;&gt;&lt;/div&gt;
+        &lt;div id=&quot;right-triangle&quot;&gt;&lt;/div&gt;
+        &lt;div class=&quot;left top&quot;&gt;&lt;/div&gt;
+        &lt;div class=&quot;right top&quot;&gt;&lt;/div&gt;
+        &lt;div&gt;xx&lt;/div&gt;
+        &lt;div class=&quot;left bottom&quot;&gt;&lt;/div&gt;
+        &lt;div class=&quot;right bottom&quot;&gt;&lt;/div&gt;
+        &lt;div&gt;xx&lt;/div&gt;
+    &lt;/div&gt;
+&lt;/body&gt;
</ins></span></pre></div>
<a id="trunkLayoutTestsfastshapesshapeoutsidefloatsshapeoutsidetextoverlapfloathtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html (0 => 178192)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html                                (rev 0)
+++ trunk/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html        2015-01-09 21:01:53 UTC (rev 178192)
</span><span class="lines">@@ -0,0 +1,33 @@
</span><ins>+&lt;!DOCTYPE html&gt;
+&lt;style&gt;
+    #container {
+      font: 10px/1 Ahem;
+      width: 40px;
+    }
+
+    #left, #right {
+      width: 20px;
+      height: 20px;
+      background-color: green;
+    }
+
+    #left {
+      float: left;
+      -webkit-shape-outside: polygon(0 0, 100% 100%, 0 100%);
+      -webkit-clip-path: polygon(0 0, 100% 100%, 0 100%);
+    }
+
+    #right {
+      float: right;
+      -webkit-shape-outside: polygon(100% 0, 100% 100%, 0 100%);
+      -webkit-clip-path: polygon(100% 0, 100% 100%, 0 100%);
+    }
+&lt;/style&gt;
+&lt;body&gt;
+    &lt;p&gt;The black rectangles should not overlap the green trianges.&lt;/p&gt;
+    &lt;div id=&quot;container&quot;&gt;
+        &lt;div id=&quot;left&quot;&gt;&lt;/div&gt;
+        &lt;div id=&quot;right&quot;&gt;&lt;/div&gt;
+        &lt;p&gt;xx xx&lt;/p&gt;
+    &lt;/div&gt;
+&lt;/body&gt;
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (178191 => 178192)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2015-01-09 20:59:05 UTC (rev 178191)
+++ trunk/Source/WebCore/ChangeLog        2015-01-09 21:01:53 UTC (rev 178192)
</span><span class="lines">@@ -1,3 +1,21 @@
</span><ins>+2015-01-09  Bem Jones-Bey  &lt;bjonesbe@adobe.com&gt;
+
+        [CSS Shapes] content inside second shape area when two floats interact
+        https://bugs.webkit.org/show_bug.cgi?id=137702
+
+        Reviewed by Zalan Bujtas.
+
+        If a float has a shape-outside, we cannot assume that it has a uniform
+        width for the height of the float, so we cannot use simple line
+        layout.
+
+        Test: fast/shapes/shape-outside-floats/shape-outside-text-overlap-float.html
+
+        * rendering/SimpleLineLayout.cpp:
+        (WebCore::SimpleLineLayout::canUseFor): Don't use simple line layout
+            if we have shape-outside. Also, rename floatRenderer to
+            floatingObject, since the variable doesn't contain a renderer.
+
</ins><span class="cx"> 2015-01-09  Chris Dumez  &lt;cdumez@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Allow HTTPS + 'Cache-control: no-store' sub-frames into the page cache
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingSimpleLineLayoutcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/SimpleLineLayout.cpp (178191 => 178192)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/SimpleLineLayout.cpp        2015-01-09 20:59:05 UTC (rev 178191)
+++ trunk/Source/WebCore/rendering/SimpleLineLayout.cpp        2015-01-09 21:01:53 UTC (rev 178192)
</span><span class="lines">@@ -170,9 +170,15 @@
</span><span class="cx">         for (const auto&amp; textRenderer : childrenOfType&lt;RenderText&gt;(flow)) {
</span><span class="cx">             minimumWidthNeeded = std::min(minimumWidthNeeded, textRenderer.minLogicalWidth());
</span><span class="cx"> 
</span><del>-            for (auto&amp; floatRenderer : *flow.floatingObjectSet()) {
-                ASSERT(floatRenderer);
-                float availableWidth = flow.availableLogicalWidthForLine(floatRenderer-&gt;y(), false);
</del><ins>+            for (auto&amp; floatingObject : *flow.floatingObjectSet()) {
+                ASSERT(floatingObject);
+#if ENABLE(CSS_SHAPES)
+                // if a float has a shape, we cannot tell if content will need to be shifted until after we lay it out,
+                // since the amount of space is not uniform for the height of the float.
+                if (floatingObject-&gt;renderer().shapeOutsideInfo())
+                    return false;
+#endif
+                float availableWidth = flow.availableLogicalWidthForLine(floatingObject-&gt;y(), false);
</ins><span class="cx">                 if (availableWidth &lt; minimumWidthNeeded)
</span><span class="cx">                     return false;
</span><span class="cx">             }
</span></span></pre>
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