From d8c00eff2aa095101c78dfb5e28bcd1f5c428a7c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Holger=20Ko=CC=88nemann?= <office@holgerkoenemann.de>
Date: Tue, 17 Jan 2017 15:31:12 +0100
Subject: [PATCH] Dynamize footer full and static hero widget area

Now adds the proper Bootstrap class to a widget, depending on the
number of widgets. For example col-md-6 if two widgets are there,
col-md-4 if three published etc.
---
 inc/widgets.php | 54 +++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 46 insertions(+), 8 deletions(-)

diff --git a/inc/widgets.php b/inc/widgets.php
index d9649dfd..79a5ea05 100644
--- a/inc/widgets.php
+++ b/inc/widgets.php
@@ -4,6 +4,43 @@
  *
  * @package understrap
  */
+/**
+ * Count number of widgets in a sidebar
+ * Used to add classes to widget areas so widgets can be displayed one, two, three or four per row
+ */
+function slbd_count_widgets( $sidebar_id ) {
+	// If loading from front page, consult $_wp_sidebars_widgets rather than options
+	// to see if wp_convert_widget_settings() has made manipulations in memory.
+	global $_wp_sidebars_widgets;
+	if ( empty( $_wp_sidebars_widgets ) ) :
+		$_wp_sidebars_widgets = get_option( 'sidebars_widgets', array() );
+	endif;
+	
+	$sidebars_widgets_count = $_wp_sidebars_widgets;
+	
+	if ( isset( $sidebars_widgets_count[ $sidebar_id ] ) ) :
+		$widget_count = count( $sidebars_widgets_count[ $sidebar_id ] );
+		$widget_classes = 'widget-count-' . count( $sidebars_widgets_count[ $sidebar_id ] );
+		if ( $widget_count % 4 == 0 || $widget_count > 6 ) :
+			// Four widgets er row if there are exactly four or more than six
+			$widget_classes .= ' col-md-3';
+		elseif ( 6 == $widget_count ) :
+			// If two widgets are published
+			$widget_classes .= ' col-md-2';
+		elseif ( $widget_count >= 3 ) :
+			// Three widgets per row if there's three or more widgets 
+			$widget_classes .= ' col-md-4';
+		elseif ( 2 == $widget_count ) :
+			// If two widgets are published
+			$widget_classes .= ' col-md-6';
+		elseif ( 1 == $widget_count ) :
+			// If just on widget is active
+			$widget_classes .= ' col-md-12';
+		endif; 
+		return $widget_classes;
+	endif;
+}
+
 
 if ( ! function_exists( 'understrap_widgets_init' ) ) {
 	/**
@@ -44,22 +81,23 @@ if ( ! function_exists( 'understrap_widgets_init' ) ) {
 			'name'          => __( 'Hero Static', 'understrap' ),
 			'id'            => 'statichero',
 			'description'   => 'Static Hero widget. no slider functionallity',
-			'before_widget' => '',
-			'after_widget'  => '',
-			'before_title'  => '',
-			'after_title'   => '',
+		    'before_widget'  => '<div id="%1$s" class="static-hero-widget %2$s '. slbd_count_widgets( 'statichero' ) .'">', 
+		    'after_widget'   => '</div><!-- .static-hero-widget -->', 
+		    'before_title'   => '<h3 class="widget-title">', 
+		    'after_title'    => '</h3>',
 		) );
 
 		register_sidebar( array(
 			'name'          => __( 'Footer Full', 'understrap' ),
 			'id'            => 'footerfull',
 			'description'   => 'Widget area below main content and above footer',
-			'before_widget' => '',
-			'after_widget'  => '',
-			'before_title'  => '',
-			'after_title'   => '',
+		    'before_widget'  => '<div id="%1$s" class="footer-widget %2$s '. slbd_count_widgets( 'footerfull' ) .'">', 
+		    'after_widget'   => '</div><!-- .footer-widget -->', 
+		    'before_title'   => '<h3 class="widget-title">', 
+		    'after_title'    => '</h3>', 
 		) );
 
 	}
 } // endif function_exists( 'understrap_widgets_init' ).
 add_action( 'widgets_init', 'understrap_widgets_init' );
+