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<title>[30838] trunk/src/wp-content/themes/twentyfifteen: Twenty Fifteen: update scroll functionality to make sure child menu items are always reachable.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/30838">30838</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/30838","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>lancewillett</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2014-12-12 23:58:06 +0000 (Fri, 12 Dec 2014)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Twenty Fifteen: update scroll functionality to make sure child menu items are always reachable.

Props iamtakashi, fixes <a href="https://core.trac.wordpress.org/ticket/30674">#30674</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpcontentthemestwentyfifteenfunctionsphp">trunk/src/wp-content/themes/twentyfifteen/functions.php</a></li>
<li><a href="#trunksrcwpcontentthemestwentyfifteenjsfunctionsjs">trunk/src/wp-content/themes/twentyfifteen/js/functions.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpcontentthemestwentyfifteenfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-content/themes/twentyfifteen/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-content/themes/twentyfifteen/functions.php   2014-12-12 22:11:46 UTC (rev 30837)
+++ trunk/src/wp-content/themes/twentyfifteen/functions.php     2014-12-12 23:58:06 UTC (rev 30838)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -226,7 +226,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                wp_enqueue_script( 'twentyfifteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20141010' );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        wp_enqueue_script( 'twentyfifteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20141010', true );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ wp_enqueue_script( 'twentyfifteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20141212', true );
</ins><span class="cx" style="display: block; padding: 0 10px">         wp_localize_script( 'twentyfifteen-script', 'screenReaderText', array(
</span><span class="cx" style="display: block; padding: 0 10px">                'expand'   => '<span class="screen-reader-text">' . esc_html__( 'expand child menu', 'twentyfifteen' ) . '</span>',
</span><span class="cx" style="display: block; padding: 0 10px">                'collapse' => '<span class="screen-reader-text">' . esc_html__( 'collapse child menu', 'twentyfifteen' ) . '</span>',
</span></span></pre></div>
<a id="trunksrcwpcontentthemestwentyfifteenjsfunctionsjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-content/themes/twentyfifteen/js/functions.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-content/themes/twentyfifteen/js/functions.js 2014-12-12 22:11:46 UTC (rev 30837)
+++ trunk/src/wp-content/themes/twentyfifteen/js/functions.js   2014-12-12 23:58:06 UTC (rev 30838)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -66,35 +66,37 @@
</span><span class="cx" style="display: block; padding: 0 10px">        function scroll() {
</span><span class="cx" style="display: block; padding: 0 10px">                var windowPos = $window.scrollTop();
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                if ( 955 <= windowWidth && sidebarHeight + adminbarOffset < bodyHeight ) {
-                       if ( sidebarHeight + adminbarOffset > windowHeight ) {
-                               if ( windowPos > lastWindowPos ) {
-                                       if ( top ) {
-                                               top = false;
-                                               topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
-                                               $sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
-                                       } else if ( ! bottom && windowPos + windowHeight > sidebarHeight + $sidebar.offset().top ) {
-                                               bottom = true;
-                                               $sidebar.attr( 'style', 'position: fixed;bottom: 0;' );
-                                       }
-                               } else if ( windowPos < lastWindowPos ) {
-                                       if ( bottom ) {
-                                               bottom = false;
-                                               topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
-                                               $sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
-                                       } else if ( ! top && windowPos + adminbarOffset < $sidebar.offset().top ) {
-                                               top = true;
-                                               $sidebar.attr( 'style', 'position: fixed;' );
-                                       }
-                               } else {
-                                       top = bottom = false;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         if ( 955 > windowWidth ) {
+                       return;
+               }
+
+               if ( sidebarHeight + adminbarOffset > windowHeight ) {
+                       if ( windowPos > lastWindowPos ) {
+                               if ( top ) {
+                                       top = false;
</ins><span class="cx" style="display: block; padding: 0 10px">                                         topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
</span><span class="cx" style="display: block; padding: 0 10px">                                        $sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                } else if ( ! bottom && windowPos + windowHeight > sidebarHeight + $sidebar.offset().top && sidebarHeight + adminbarOffset < bodyHeight ) {
+                                       bottom = true;
+                                       $sidebar.attr( 'style', 'position: fixed; bottom: 0;' );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        } else if ( ! top ) {
-                               top = true;
-                               $sidebar.attr( 'style', 'position: fixed;' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 } else if ( windowPos < lastWindowPos ) {
+                               if ( bottom ) {
+                                       bottom = false;
+                                       topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
+                                       $sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
+                               } else if ( ! top && windowPos + adminbarOffset < $sidebar.offset().top ) {
+                                       top = true;
+                                       $sidebar.attr( 'style', 'position: fixed;' );
+                               }
+                       } else {
+                               top = bottom = false;
+                               topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
+                               $sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                } else if ( ! top ) {
+                       top = true;
+                       $sidebar.attr( 'style', 'position: fixed;' );
</ins><span class="cx" style="display: block; padding: 0 10px">                 }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                lastWindowPos = windowPos;
</span></span></pre>
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