Changeset 36698 for trunk/src/wp-includes/general-template.php

Timestamp:

02/24/2016 10:09:54 PM (9 years ago)

Author:

obenland

Message:

Customize: Introduce Logo support for themes.

Allows a common theme feature to have a common implementation provided by core and available in a consistent location for users.
See ​https://make.wordpress.org/core/2016/02/24/theme-logo-support/

Props kwight, enejb, jeherve, bhubbard, samhotchkiss, zinigor, eliorivero, adamsilverstein, melchoyce, ryan, mikeschroder, westonruter, pento, karmatosed, celloexpressions, obenland.
See #33755.

File:

• trunk/src/wp-includes/general-template.php (modified) (1 diff)

trunk/src/wp-includes/general-template.php

@@ -830 +830 @@
 function has_site_icon( $blog_id = 0 ) {
     return (bool) get_site_icon_url( 512, '', $blog_id );
+}
+
+/**
+ * Whether the site has a Site Logo.
+ *
+ * @since 4.5.0
+ *
+ * @param int $blog_id Optional. ID of the blog in question. Default current blog.
+ * @return bool Whether the site has a site logo or not.
+ */
+function has_site_logo( $blog_id = 0 ) {
+    if ( is_multisite() && (int) $blog_id !== get_current_blog_id() ) {
+        switch_to_blog( $blog_id );
+    }
+
+    $site_logo_id = get_theme_mod( 'site_logo' );
+
+    if ( is_multisite() && ms_is_switched() ) {
+        restore_current_blog();
+    }
+
+    return (bool) $site_logo_id;
+}
+
+/**
+ * Returns a Site Logo, linked to home.
+ *
+ * @since 4.5.0
+ *
+ * @param int $blog_id Optional. ID of the blog in question. Default current blog.
+ * @return string Site logo markup.
+ */
+function get_the_site_logo( $blog_id = 0 ) {
+    $html = '';
+
+    if ( is_multisite() && (int) $blog_id !== get_current_blog_id() ) {
+        switch_to_blog( $blog_id );
+    }
+
+    $site_logo_id = get_theme_mod( 'site_logo' );
+
+    if ( is_multisite() && ms_is_switched() ) {
+        restore_current_blog();
+    }
+    $size = get_theme_support( 'site-logo' );
+    $size = $size[0]['size'];
+
+    // We have a logo. Logo is go.
+    if ( $site_logo_id ) {
+        $html = sprintf( '<a href="%1$s" class="site-logo-link" rel="home" itemprop="url">%2$s</a>',
+            esc_url( home_url( '/' ) ),
+            wp_get_attachment_image( $site_logo_id, $size, false, array(
+                'class'     => "site-logo attachment-$size",
+                'data-size' => $size,
+                'itemprop'  => 'logo',
+            ) )
+        );
+    }
+
+    // If no logo is set but we're in the Customizer, leave a placeholder (needed for the live preview).
+    elseif ( is_customize_preview() ) {
+        $html = sprintf( '<a href="%1$s" class="site-logo-link" style="display:none;"><img class="site-logo" data-size="%2$s" /></a>',
+            esc_url( home_url( '/' ) ),
+            esc_attr( $size )
+        );
+    }
+
+    /**
+     * Filter the Site Logo output.
+     *
+     * @since 4.5.0
+     *
+     * @param string $html Site Logo HTML output.
+     * @param string $size Size specified in add_theme_support declaration, or 'thumbnail' default.
+     */
+    return apply_filters( 'get_the_site_logo', $html, $size );
+}
+
+/**
+ * Displays a Site Logo, linked to home.
+ *
+ * @since 4.5.0
+ *
+ * @param int $blog_id Optional. ID of the blog in question. Default current blog.
+ */
+function the_site_logo( $blog_id = 0 ) {
+    echo get_the_site_logo( $blog_id );
 }