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<title>[3386] sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-plugins/functions.php: Plugin Directory: Add support for hreflang link attributes.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://meta.trac.wordpress.org/changeset/3386">3386</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://meta.trac.wordpress.org/changeset/3386","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>obenland</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-06-16 11:26:21 +0000 (Thu, 16 Jun 2016)</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'>Plugin Directory: Add support for hreflang link attributes.
See <a href="http://meta.trac.wordpress.org/ticket/1691">#1691</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#sitestrunkwordpressorgpublic_htmlwpcontentthemespubwporgpluginsfunctionsphp">sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-plugins/functions.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="sitestrunkwordpressorgpublic_htmlwpcontentthemespubwporgpluginsfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-plugins/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-plugins/functions.php 2016-06-16 11:04:44 UTC (rev 3385)
+++ sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-plugins/functions.php 2016-06-16 11:26:21 UTC (rev 3386)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -71,7 +71,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_script( 'wporg-plugins-navigation', get_template_directory_uri() . '/js/navigation.js', array(), '20151215', true );
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_script( 'wporg-plugins-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20151215', true );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( is_singular( 'plugin' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_script( 'wporg-plugins-accordion', get_template_directory_uri() . '/js/section-accordion.js', array(), '20160525', true );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -105,7 +105,81 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'customize_preview_init', __NAMESPACE__ . '\customize_preview_js' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Adds hreflang link attributes to plugin pages.
+ *
+ * @link https://support.google.com/webmasters/answer/189077?hl=en Use hreflang for language and regional URLs.
+ * @link https://sites.google.com/site/webmasterhelpforum/en/faq-internationalisation FAQ: Internationalisation.
+ */
+function hreflang_link_attributes() {
+
+ if ( false === ( $sites = wp_cache_get( 'local-sites', 'locale-associations' ) ) ) {
+ global $wpdb;
+
+ $sites = $wpdb->get_results( 'SELECT locale, subdomain FROM locales', OBJECT_K );
+ if ( ! $sites ) {
+ return;
+ }
+
+ require_once GLOTPRESS_LOCALES_PATH;
+
+ foreach ( $sites as $site ) {
+ $gp_locale = \GP_Locales::by_field( 'wp_locale', $site->locale );
+ if ( ! $gp_locale ) {
+ unset( $sites[ $site->locale ] );
+ continue;
+ }
+
+ // Note that Google only supports ISO 639-1 codes.
+ if ( isset( $gp_locale->lang_code_iso_639_1 ) && isset( $gp_locale->country_code ) ) {
+ $hreflang = $gp_locale->lang_code_iso_639_1 . '-' . $gp_locale->country_code;
+ } elseif ( isset( $gp_locale->lang_code_iso_639_1 ) ) {
+ $hreflang = $gp_locale->lang_code_iso_639_1;
+ } elseif ( isset( $gp_locale->lang_code_iso_639_2 ) ) {
+ $hreflang = $gp_locale->lang_code_iso_639_2;
+ } elseif ( isset( $gp_locale->lang_code_iso_639_3 ) ) {
+ $hreflang = $gp_locale->lang_code_iso_639_3;
+ }
+
+ if ( $hreflang ) {
+ $sites[ $site->locale ]->hreflang = strtolower( $hreflang );
+ } else {
+ unset( $sites[ $site->locale ] );
+ }
+ }
+
+ // Add en_US to the list of sites.
+ $sites['en_US'] = (object) array(
+ 'locale' => 'en_US',
+ 'hreflang' => 'en',
+ 'subdomain' => ''
+ );
+
+ uasort( $sites, function( $a, $b ) {
+ return strcasecmp( $a->hreflang, $b->hreflang );
+ } );
+
+ wp_cache_set( 'local-sites', $sites, 'locale-associations', DAY_IN_SECONDS );
+ }
+
+ foreach ( $sites as $site ) {
+ $url = sprintf(
+ 'https://%swordpress.org%s',
+ $site->subdomain ? "{$site->subdomain}." : '',
+ $_SERVER[ 'REQUEST_URI' ]
+ );
+
+ printf(
+ '<link rel="alternate" href="%s" hreflang="%s" />' . "\n",
+ esc_url( $url ),
+ esc_attr( $site->hreflang )
+ );
+ }
+}
+add_action( 'wp_head', __NAMESPACE__ . '\hreflang_link_attributes' );
+
+/**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Custom template tags for this theme.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> require get_template_directory() . '/inc/template-tags.php';
</span></span></pre>
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