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<title>[45141] trunk: Menus: Add `rel="noopener"` to `target="_blank"` links by default in menus.</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/45141">45141</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/45141","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>pento</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-04-08 23:05:22 +0000 (Mon, 08 Apr 2019)</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'>Menus: Add `rel="noopener"` to `target="_blank"` links by default in menus.

This expands upon `rel="noopener"` being previously added to links in the content.

Props audrasjb, welcher.
Fixes <a href="https://core.trac.wordpress.org/ticket/43290">#43290</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswalkernavmenuphp">trunk/src/wp-includes/class-walker-nav-menu.php</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunktestsphpunittestsmenuwalkernavmenuphp">trunk/tests/phpunit/tests/menu/walker-nav-menu.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesclasswalkernavmenuphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-walker-nav-menu.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-walker-nav-menu.php   2019-04-08 22:58:49 UTC (rev 45140)
+++ trunk/src/wp-includes/class-walker-nav-menu.php     2019-04-08 23:05:22 UTC (rev 45141)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -169,10 +169,14 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $output .= $indent . '<li' . $id . $class_names . '>';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $atts                 = array();
-               $atts['title']        = ! empty( $item->attr_title ) ? $item->attr_title : '';
-               $atts['target']       = ! empty( $item->target ) ? $item->target : '';
-               $atts['rel']          = ! empty( $item->xfn ) ? $item->xfn : '';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $atts           = array();
+               $atts['title']  = ! empty( $item->attr_title ) ? $item->attr_title : '';
+               $atts['target'] = ! empty( $item->target ) ? $item->target : '';
+               if ( '_blank' === $item->target && empty( $item->xfn ) ) {
+                       $atts['rel'] = 'noopener noreferrer';
+               } else {
+                       $atts['rel'] = $item->xfn;
+               }
</ins><span class="cx" style="display: block; padding: 0 10px">                 $atts['href']         = ! empty( $item->url ) ? $item->url : '';
</span><span class="cx" style="display: block; padding: 0 10px">                $atts['aria-current'] = $item->current ? 'page' : '';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span></span></pre></div>
<a id="trunktestsphpunittestsmenuwalkernavmenuphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: trunk/tests/phpunit/tests/menu/walker-nav-menu.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/menu/walker-nav-menu.php                                (rev 0)
+++ trunk/tests/phpunit/tests/menu/walker-nav-menu.php  2019-04-08 23:05:22 UTC (rev 45141)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,69 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * @group navmenus
+ * @group walker
+ */
+class Tests_Walker_Nav_Menu extends WP_UnitTestCase {
+
+       /**
+        * @var \Walker_Nav_Menu The instance of the walker.
+        */
+       public $walker;
+
+       /**
+        * Setup.
+        */
+       public function setUp() {
+               global $_wp_nav_menu_max_depth;
+
+               parent::setUp();
+
+               /** Walker_Nav_Menu_Edit class */
+               require_once ABSPATH . 'wp-includes/class-walker-nav-menu.php';
+               $this->walker = new Walker_Nav_Menu();
+
+               $this->_wp_nav_menu_max_depth = $_wp_nav_menu_max_depth;
+               parent::setUp();
+       }
+
+       /**
+        * Tear down
+        */
+       public function tearDown() {
+               global $_wp_nav_menu_max_depth;
+
+               $_wp_nav_menu_max_depth = $this->_wp_nav_menu_max_depth;
+               parent::tearDown();
+       }
+
+       /**
+        * Tests when an items target it _blank, that rel="'noopener noreferrer" is added.
+        *
+        * @ticket #43290
+        */
+       public function test_noopener_no_referrer_for_target_blank() {
+               $expected   = '';
+               $post_id    = $this->factory->post->create();
+               $post_title = get_the_title( $post_id );
+
+               $item = array(
+                       'ID'        => $post_id,
+                       'object_id' => $post_id,
+                       'title'     => $post_title,
+                       'target'    => '_blank',
+                       'xfn'       => '',
+                       'current'   => false,
+               );
+
+               $args = array(
+                       'before'      => '',
+                       'after'       => '',
+                       'link_before' => '',
+                       'link_after'  => '',
+               );
+
+               $this->walker->start_el( $expected, (object) $item, 0, (object) $args );
+
+               $this->assertSame( "<li id=\"menu-item-{$post_id}\" class=\"menu-item-{$post_id}\"><a target=\"_blank\" rel=\"noopener noreferrer\">{$post_title}</a>", $expected );
+       }
+}
</ins></span></pre>
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