Changeset 24402 for trunk/wp-content/themes/twentythirteen/functions.php

Timestamp:

06/03/2013 09:44:25 PM (13 years ago)

Author:

lancewillett

Message:

Twenty Thirteen: Clean up image attachment template and move logic to twentythirteen_the_attached_image() function. Props obenland, fixes #24479.

File:

• trunk/wp-content/themes/twentythirteen/functions.php (modified) (1 diff)

trunk/wp-content/themes/twentythirteen/functions.php

@@ -421 +421 @@
 endif;
 
+if ( ! function_exists( 'twentythirteen_the_attached_image' ) ) :
+/**
+ * Prints the attached image with a link to the next attached image.
+ *
+ * @since Twenty Thirteen 1.0
+ *
+ * @return void
+ */
+function twentythirteen_the_attached_image() {
+    $post                = get_post();
+    $attachment_size     = apply_filters( 'twentythirteen_attachment_size', array( 724, 724 ) );
+    $next_attachment_url = wp_get_attachment_url();
+
+    /**
+     * Grab the IDs of all the image attachments in a gallery so we can get the URL
+     * of the next adjacent image in a gallery, or the first image (if we're
+     * looking at the last image in a gallery), or, in a gallery of one, just the
+     * link to that image file.
+     */
+    $attachments = array_values( get_children( array(
+        'post_parent'    => $post->post_parent,
+        'post_status'    => 'inherit',
+        'post_type'      => 'attachment',
+        'post_mime_type' => 'image',
+        'order'          => 'ASC',
+        'orderby'        => 'menu_order ID'
+    ) ) );
+
+    // If there is more than 1 attachment in a gallery...
+    if ( count( $attachments ) > 1 ) {
+        foreach ( $attachments as $k => $attachment ) {
+            if ( $attachment->ID == $post->ID )
+                break;
+        }
+        $k++;
+
+        // get the URL of the next image attachment...
+        if ( isset( $attachments[ $k ] ) )
+            $next_attachment_url = get_attachment_link( $attachments[ $k ]->ID );
+
+        // or get the URL of the first image attachment.
+        else
+            $next_attachment_url = get_attachment_link( $attachments[0]->ID );
+    }
+
+    printf( '<a href="%1$s" title="%2$s" rel="attachment">%3$s</a>',
+        esc_url( $next_attachment_url ),
+        the_title_attribute( array( 'echo' => false ) ),
+        wp_get_attachment_image( $post->ID, $attachment_size )
+    );
+}
+endif;
+
 /**
  * Returns the URL from the post.