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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/209145">209145</a></dd>

<dt>Author</dt> <dd>bfulgham@apple.com</dd>

<dt>Date</dt> <dd>2016-11-30 12:20:32 -0800 (Wed, 30 Nov 2016)</dd>

</dl>

<h3>Log Message</h3>

<pre>Use 'childOfType' template when retrieving Shadow DOM elements

https://bugs.webkit.org/show_bug.cgi?id=165145

&lt;rdar://problem/29331830&gt;

Reviewed by Antti Koivisto.

Source/WebCore:

Tests: fast/shadow-dom/color-input-element-shadow-manipulation.html

       fast/shadow-dom/file-input-element-shadow-manipulation.html

       fast/shadow-dom/keygen-shadow-manipulation.html

       fast/shadow-dom/media-shadow-manipulation.html

       fast/shadow-dom/range-input-element-shadow-manipulation.html

       fast/shadow-dom/textarea-shadow-manipulation.html

Switch to using 'childOfType' when retrieving Shadow DOM elements, rather

than relying on expected element positions, as these can be changed by

JavaScript.

Drive by fix: Make more use of is&lt;&gt; and downcast&lt;&gt; templates rather than blindly casting.

* dom/Element.h:

(WebCore::Element::isUploadButton): Added.

(WebCore::Element::isSliderContainerElement): Added.

* html/ColorInputType.cpp:

(WebCore::ColorInputType::shadowColorSwatch): Use 'childOfType' rather than assuming

the first child is the one we want.

* html/FileInputType.cpp:

(isType): Added.

(WebCore::FileInputType::disabledAttributeChanged): Use 'childOfType' rather than assuming

the first child is the one we want.

(WebCore::FileInputType::multipleAttributeChanged): Ditto.

* html/HTMLKeygenElement.cpp:

(WebCore::HTMLKeygenElement::shadowSelect): Ditto.

* html/HTMLMediaElement.cpp:

(WebCore::HTMLMediaElement::mediaControls): Ditto.

(WebCore::HTMLMediaElement::hasMediaControls): Ditto.

* html/HTMLTextAreaElement.cpp:

(WebCore::HTMLTextAreaElement::innerTextElement): Ditto.

* html/RangeInputType.cpp:

(WebCore::RangeInputType::sliderTrackElement): Ditto.

* html/shadow/SliderThumbElement.h:

(isType): Added.

* svg/SVGUseElement.cpp:

(WebCore::SVGUseElement::targetClone): Use 'childOfType' rather than assuming

the first child is the one we want.

LayoutTests:

* fast/shadow-dom/color-input-element-shadow-manipulation-expected.txt: Added.

* fast/shadow-dom/color-input-element-shadow-manipulation.html: Added.

* fast/shadow-dom/file-input-element-shadow-manipulation-expected.txt: Added.

* fast/shadow-dom/file-input-element-shadow-manipulation.html: Added.

* fast/shadow-dom/keygen-shadow-manipulation-expected.txt: Added.

* fast/shadow-dom/keygen-shadow-manipulation.html: Added.

* fast/shadow-dom/media-shadow-manipulation-expected.txt: Added.

* fast/shadow-dom/media-shadow-manipulation.html: Added.

* fast/shadow-dom/range-input-element-shadow-manipulation-expected.txt: Added.

* fast/shadow-dom/range-input-element-shadow-manipulation.html: Added.

* fast/shadow-dom/textarea-shadow-manipulation-expected.txt: Added.

* fast/shadow-dom/textarea-shadow-manipulation.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="#trunkSourceWebCoredomElementh">trunk/Source/WebCore/dom/Element.h</a></li>

<li><a href="#trunkSourceWebCorehtmlColorInputTypecpp">trunk/Source/WebCore/html/ColorInputType.cpp</a></li>

<li><a href="#trunkSourceWebCorehtmlFileInputTypecpp">trunk/Source/WebCore/html/FileInputType.cpp</a></li>

<li><a href="#trunkSourceWebCorehtmlHTMLKeygenElementcpp">trunk/Source/WebCore/html/HTMLKeygenElement.cpp</a></li>

<li><a href="#trunkSourceWebCorehtmlHTMLMediaElementcpp">trunk/Source/WebCore/html/HTMLMediaElement.cpp</a></li>

<li><a href="#trunkSourceWebCorehtmlHTMLTextAreaElementcpp">trunk/Source/WebCore/html/HTMLTextAreaElement.cpp</a></li>

<li><a href="#trunkSourceWebCorehtmlRangeInputTypecpp">trunk/Source/WebCore/html/RangeInputType.cpp</a></li>

<li><a href="#trunkSourceWebCorehtmlshadowSliderThumbElementh">trunk/Source/WebCore/html/shadow/SliderThumbElement.h</a></li>

<li><a href="#trunkSourceWebCoresvgSVGUseElementcpp">trunk/Source/WebCore/svg/SVGUseElement.cpp</a></li>

</ul>

<h3>Added Paths</h3>

<ul>

<li><a href="#trunkLayoutTestsfastshadowdomcolorinputelementshadowmanipulationexpectedtxt">trunk/LayoutTests/fast/shadow-dom/color-input-element-shadow-manipulation-expected.txt</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomcolorinputelementshadowmanipulationhtml">trunk/LayoutTests/fast/shadow-dom/color-input-element-shadow-manipulation.html</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomfileinputelementshadowmanipulationexpectedtxt">trunk/LayoutTests/fast/shadow-dom/file-input-element-shadow-manipulation-expected.txt</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomfileinputelementshadowmanipulationhtml">trunk/LayoutTests/fast/shadow-dom/file-input-element-shadow-manipulation.html</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomkeygenshadowmanipulationexpectedtxt">trunk/LayoutTests/fast/shadow-dom/keygen-shadow-manipulation-expected.txt</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomkeygenshadowmanipulationhtml">trunk/LayoutTests/fast/shadow-dom/keygen-shadow-manipulation.html</a></li>

<li><a href="#trunkLayoutTestsfastshadowdommediashadowmanipulationexpectedtxt">trunk/LayoutTests/fast/shadow-dom/media-shadow-manipulation-expected.txt</a></li>

<li><a href="#trunkLayoutTestsfastshadowdommediashadowmanipulationhtml">trunk/LayoutTests/fast/shadow-dom/media-shadow-manipulation.html</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomrangeinputelementshadowmanipulationexpectedtxt">trunk/LayoutTests/fast/shadow-dom/range-input-element-shadow-manipulation-expected.txt</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomrangeinputelementshadowmanipulationhtml">trunk/LayoutTests/fast/shadow-dom/range-input-element-shadow-manipulation.html</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomtextareashadowmanipulationexpectedtxt">trunk/LayoutTests/fast/shadow-dom/textarea-shadow-manipulation-expected.txt</a></li>

<li><a href="#trunkLayoutTestsfastshadowdomtextareashadowmanipulationhtml">trunk/LayoutTests/fast/shadow-dom/textarea-shadow-manipulation.html</a></li>

</ul>

</div>

<div id="patch">

<h3>Diff</h3>

<a id="trunkLayoutTestsChangeLog"></a>

<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (209144 => 209145)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/LayoutTests/ChangeLog        2016-11-30 19:59:01 UTC (rev 209144)

+++ trunk/LayoutTests/ChangeLog        2016-11-30 20:20:32 UTC (rev 209145)

</span><span class="lines">@@ -1,3 +1,24 @@

</span><ins>+2016-11-30  Brent Fulgham  &lt;bfulgham@apple.com&gt;

+

+        Use 'childOfType' template when retrieving Shadow DOM elements

+        https://bugs.webkit.org/show_bug.cgi?id=165145

+        &lt;rdar://problem/29331830&gt;

+

+        Reviewed by Antti Koivisto.

+

+        * fast/shadow-dom/color-input-element-shadow-manipulation-expected.txt: Added.

+        * fast/shadow-dom/color-input-element-shadow-manipulation.html: Added.

+        * fast/shadow-dom/file-input-element-shadow-manipulation-expected.txt: Added.

+        * fast/shadow-dom/file-input-element-shadow-manipulation.html: Added.

+        * fast/shadow-dom/keygen-shadow-manipulation-expected.txt: Added.

+        * fast/shadow-dom/keygen-shadow-manipulation.html: Added.

+        * fast/shadow-dom/media-shadow-manipulation-expected.txt: Added.

+        * fast/shadow-dom/media-shadow-manipulation.html: Added.

+        * fast/shadow-dom/range-input-element-shadow-manipulation-expected.txt: Added.

+        * fast/shadow-dom/range-input-element-shadow-manipulation.html: Added.

+        * fast/shadow-dom/textarea-shadow-manipulation-expected.txt: Added.

+        * fast/shadow-dom/textarea-shadow-manipulation.html: Added.

+

</ins><span class="cx"> 2016-11-30  Joseph Pecoraro  &lt;pecoraro@apple.com&gt;

</span><span class="cx"> 

</span><span class="cx">         Web Inspector: Clicking on link in Web Inspector can cause UIProcess to crash

</span></span></pre></div>

<a id="trunkLayoutTestsfastshadowdomcolorinputelementshadowmanipulationexpectedtxt"></a>

<div class="addfile"><h4>Added: trunk/LayoutTests/fast/shadow-dom/color-input-element-shadow-manipulation-expected.txt (0 => 209145)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/LayoutTests/fast/shadow-dom/color-input-element-shadow-manipulation-expected.txt                                (rev 0)

+++ trunk/LayoutTests/fast/shadow-dom/color-input-element-shadow-manipulation-expected.txt        2016-11-30 20:20:32 UTC (rev 209145)

</span><span class="lines">@@ -0,0 +1,5 @@