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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/207395">207395</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2016-10-16 15:11:41 -0700 (Sun, 16 Oct 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>[Modern Media Controls] Styles for StartButton are missing
https://bugs.webkit.org/show_bug.cgi?id=163499
&lt;rdar://problem/28792009&gt;

Patch by Antoine Quint &lt;graouts@apple.com&gt; on 2016-10-16
Reviewed by Darin Adler.

Source/WebCore:

Add styling for StartButton so that instances are always displayed in the center of their container.

Test: media/modern-media-controls/start-button/start-button-styles.html

* Modules/modern-media-controls/controls/start-button.css: Added.
(button.start):
(button.start &gt; *):
(button.start &gt; div):
(button.start &gt; img):
(button.start:active &gt; img):

LayoutTests:

New test checking StartButton instances have the right CSS styles applied to their DOM structure.

* media/modern-media-controls/start-button/start-button-styles-expected.txt: Added.
* media/modern-media-controls/start-button/start-button-styles.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>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsmediamodernmediacontrolsstartbuttonstartbuttonstylesexpectedtxt">trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles-expected.txt</a></li>
<li><a href="#trunkLayoutTestsmediamodernmediacontrolsstartbuttonstartbuttonstyleshtml">trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles.html</a></li>
<li><a href="#trunkSourceWebCoreModulesmodernmediacontrolscontrolsstartbuttoncss">trunk/Source/WebCore/Modules/modern-media-controls/controls/start-button.css</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (207394 => 207395)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2016-10-16 18:59:31 UTC (rev 207394)
+++ trunk/LayoutTests/ChangeLog        2016-10-16 22:11:41 UTC (rev 207395)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2016-10-16  Antoine Quint  &lt;graouts@apple.com&gt;
+
+        [Modern Media Controls] Styles for StartButton are missing
+        https://bugs.webkit.org/show_bug.cgi?id=163499
+        &lt;rdar://problem/28792009&gt;
+
+        Reviewed by Darin Adler.
+
+        New test checking StartButton instances have the right CSS styles applied to their DOM structure.
+
+        * media/modern-media-controls/start-button/start-button-styles-expected.txt: Added.
+        * media/modern-media-controls/start-button/start-button-styles.html: Added.
+
</ins><span class="cx"> 2016-10-16  Gyuyoung Kim  &lt;gyuyoung.kim@webkit.org&gt;
</span><span class="cx"> 
</span><span class="cx">         [EFL] Meter tests have been failed since r207280
</span></span></pre></div>
<a id="trunkLayoutTestsmediamodernmediacontrolsstartbuttonstartbuttonstylesexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles-expected.txt (0 => 207395)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles-expected.txt                                (rev 0)
+++ trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles-expected.txt        2016-10-16 22:11:41 UTC (rev 207395)
</span><span class="lines">@@ -0,0 +1,34 @@
</span><ins>+Testing the StartButton class.
+
+On success, you will see a series of &quot;PASS&quot; messages, followed by &quot;TEST COMPLETE&quot;.
+
+
+PASS startButtonStyle.position is &quot;absolute&quot;
+PASS startButtonStyle.left is &quot;50%&quot;
+PASS startButtonStyle.top is &quot;50%&quot;
+PASS startButtonStyle.width is &quot;70px&quot;
+PASS startButtonStyle.height is &quot;70px&quot;
+PASS startButtonStyle.transform is &quot;matrix(1, 0, 0, 1, -35, -35)&quot;
+PASS startButtonBounds.left is 115
+PASS startButtonBounds.top is 65
+
+PASS startButtonBackgroundStyle.position is &quot;absolute&quot;
+PASS startButtonBackgroundStyle.left is &quot;0px&quot;
+PASS startButtonBackgroundStyle.top is &quot;0px&quot;
+PASS startButtonBackgroundStyle.width is &quot;70px&quot;
+PASS startButtonBackgroundStyle.height is &quot;70px&quot;
+PASS startButtonBackgroundStyle.webkitAppearance is &quot;media-controls-light-bar-background&quot;
+PASS startButtonBackgroundStyle.webkitClipPath is &quot;circle(50% at 50% 50%)&quot;
+PASS startButtonBackgroundStyle.willChange is &quot;transform&quot;
+
+PASS startButtonImageStyle.position is &quot;absolute&quot;
+PASS startButtonImageStyle.left is &quot;0px&quot;
+PASS startButtonImageStyle.top is &quot;0px&quot;
+PASS startButtonImageStyle.width is &quot;70px&quot;
+PASS startButtonImageStyle.height is &quot;70px&quot;
+PASS 0.6000000238418579 is within 0.001 of 0.6
+
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="trunkLayoutTestsmediamodernmediacontrolsstartbuttonstartbuttonstyleshtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles.html (0 => 207395)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles.html                                (rev 0)
+++ trunk/LayoutTests/media/modern-media-controls/start-button/start-button-styles.html        2016-10-16 22:11:41 UTC (rev 207395)
</span><span class="lines">@@ -0,0 +1,69 @@
</span><ins>+&lt;link rel=&quot;stylesheet&quot; href=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/button.css&quot; type=&quot;text/css&quot; media=&quot;screen&quot;&gt;
+&lt;link rel=&quot;stylesheet&quot; href=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/start-button.css&quot; type=&quot;text/css&quot; media=&quot;screen&quot;&gt;
+&lt;script src=&quot;../../../resources/js-test-pre.js&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/scheduler.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/layout-node.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/layout-item.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/button.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/icon-service.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/icon-button.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;script src=&quot;../../../../Source/WebCore/Modules/modern-media-controls/controls/start-button.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
+&lt;style type=&quot;text/css&quot; media=&quot;screen&quot;&gt;
+
+#container {
+    position: absolute;
+    left: 0;
+    top: 0;
+    width: 300px;
+    height: 200px;
+}
+
+&lt;/style&gt;
+&lt;body&gt;
+&lt;div id=&quot;container&quot;&gt;&lt;/div&gt;
+&lt;script type=&quot;text/javascript&quot;&gt;
+
+description(&quot;Testing the &lt;code&gt;StartButton&lt;/code&gt; class.&quot;);
+
+iconService.directoryPath = &quot;../../../../Source/WebCore/Modules/modern-media-controls/images&quot;;
+
+const startButton = new StartButton({ layoutTraits: LayoutTraits.macOS });
+document.getElementById(&quot;container&quot;).appendChild(startButton.element);
+
+const startButtonStyle = window.getComputedStyle(startButton.element);
+const startButtonBounds = startButton.element.getBoundingClientRect();
+shouldBeEqualToString(&quot;startButtonStyle.position&quot;, &quot;absolute&quot;);
+shouldBeEqualToString(&quot;startButtonStyle.left&quot;, &quot;50%&quot;);
+shouldBeEqualToString(&quot;startButtonStyle.top&quot;, &quot;50%&quot;);
+shouldBeEqualToString(&quot;startButtonStyle.width&quot;, &quot;70px&quot;);
+shouldBeEqualToString(&quot;startButtonStyle.height&quot;, &quot;70px&quot;);
+shouldBeEqualToString(&quot;startButtonStyle.transform&quot;, &quot;matrix(1, 0, 0, 1, -35, -35)&quot;);
+shouldBe(&quot;startButtonBounds.left&quot;, &quot;115&quot;);
+shouldBe(&quot;startButtonBounds.top&quot;, &quot;65&quot;);
+
+debug(&quot;&quot;);
+const startButtonBackgroundStyle = window.getComputedStyle(startButton.element.firstElementChild);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.position&quot;, &quot;absolute&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.left&quot;, &quot;0px&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.top&quot;, &quot;0px&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.width&quot;, &quot;70px&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.height&quot;, &quot;70px&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.webkitAppearance&quot;, &quot;media-controls-light-bar-background&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.webkitClipPath&quot;, &quot;circle(50% at 50% 50%)&quot;);
+shouldBeEqualToString(&quot;startButtonBackgroundStyle.willChange&quot;, &quot;transform&quot;);
+
+debug(&quot;&quot;);
+const startButtonImageStyle = window.getComputedStyle(startButton.element.lastElementChild);
+shouldBeEqualToString(&quot;startButtonImageStyle.position&quot;, &quot;absolute&quot;);
+shouldBeEqualToString(&quot;startButtonImageStyle.left&quot;, &quot;0px&quot;);
+shouldBeEqualToString(&quot;startButtonImageStyle.top&quot;, &quot;0px&quot;);
+shouldBeEqualToString(&quot;startButtonImageStyle.width&quot;, &quot;70px&quot;);
+shouldBeEqualToString(&quot;startButtonImageStyle.height&quot;, &quot;70px&quot;);
+shouldBeCloseTo(startButtonImageStyle.opacity, 0.6, 0.001);
+
+startButton.element.remove();
+debug(&quot;&quot;);
+
+&lt;/script&gt;
+&lt;script src=&quot;../../../resources/js-test-post.js&quot;&gt;&lt;/script&gt;
+&lt;/body&gt;
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (207394 => 207395)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-10-16 18:59:31 UTC (rev 207394)
+++ trunk/Source/WebCore/ChangeLog        2016-10-16 22:11:41 UTC (rev 207395)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2016-10-16  Antoine Quint  &lt;graouts@apple.com&gt;
+
+        [Modern Media Controls] Styles for StartButton are missing
+        https://bugs.webkit.org/show_bug.cgi?id=163499
+        &lt;rdar://problem/28792009&gt;
+
+        Reviewed by Darin Adler.
+
+        Add styling for StartButton so that instances are always displayed in the center of their container.
+
+        Test: media/modern-media-controls/start-button/start-button-styles.html
+
+        * Modules/modern-media-controls/controls/start-button.css: Added.
+        (button.start):
+        (button.start &gt; *):
+        (button.start &gt; div):
+        (button.start &gt; img):
+        (button.start:active &gt; img):
+
</ins><span class="cx"> 2016-10-16  Simon Fraser  &lt;simon.fraser@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Implement serializer = { attribute }
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesmodernmediacontrolscontrolsstartbuttoncss"></a>
<div class="addfile"><h4>Added: trunk/Source/WebCore/Modules/modern-media-controls/controls/start-button.css (0 => 207395)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/modern-media-controls/controls/start-button.css                                (rev 0)
+++ trunk/Source/WebCore/Modules/modern-media-controls/controls/start-button.css        2016-10-16 22:11:41 UTC (rev 207395)
</span><span class="lines">@@ -0,0 +1,58 @@
</span><ins>+/*
+ * Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+button.start {
+    position: absolute;
+    left: 50%;
+    top: 50%;
+    width: 70px;
+    height: 70px;
+
+    background: transparent !important;
+
+    transform: translate3d(-50%, -50%, 0);
+}
+
+button.start &gt; * {
+    position: absolute;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+}
+
+button.start &gt; div {
+    -webkit-appearance: media-controls-light-bar-background;
+    -webkit-clip-path: circle(50%);
+    will-change: transform;
+}
+
+button.start &gt; img {
+    opacity: 0.6;
+}
+
+button.start:active &gt; img {
+    opacity: 1;
+}
</ins></span></pre>
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