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2026-07-02 15:54:39 -06:00
commit 9883323161
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+<?php
+
+namespace ASENHA\Classes;
+
+/**
+ * Class for Custom Body Class module
+ *
+ * @since 6.9.5
+ */
+class Custom_Body_Class {
+    
+    /**
+     * Add Custom Body Class meta box for enabled post types
+     * 
+     * @since 3.9.0
+     */
+    public function add_custom_body_class_meta_box( $post_type, $post ) {
+
+        $options = get_option( ASENHA_SLUG_U, array() );
+        $enable_custom_body_class_for = $options['enable_custom_body_class_for'];
+
+        foreach ( $enable_custom_body_class_for as $post_type_slug => $is_custom_body_class_enabled ) {
+            if ( ( get_post_type() == $post_type_slug ) && $is_custom_body_class_enabled ) {
+
+                // Skip adding meta box for post types where Gutenberg is enabled
+                // if ( 
+                //  function_exists( 'use_block_editor_for_post_type' ) 
+                //  && use_block_editor_for_post_type( $post_type_slug ) 
+                // ) {
+                //  continue; // go to the beginning of next iteration
+                // }
+
+                add_meta_box(
+                    'asenha-custom-body-class', // ID of meta box
+                    'Custom &lt;body&gt; Class', // Title of meta box
+                    [ $this, 'output_custom_body_class_meta_box' ], // Callback function
+                    $post_type_slug, // The screen on which the meta box should be output to
+                    'normal', // context
+                    'high' // priority
+                    // array(), // $args to pass to callback function. Ref: https://developer.wordpress.org/reference/functions/add_meta_box/#comment-342
+                );
+
+            }
+        }
+
+    }
+
+    /**
+     * Render External Permalink meta box
+     *
+     * @since 3.9.0
+     */
+    public function output_custom_body_class_meta_box( $post ) {
+        ?>
+        <div class="custom-body-class-input">
+            <input name="<?php echo esc_attr( 'custom_body_class' ); ?>" class="large-text" id="<?php echo esc_attr( 'custom_body_class' ); ?>" type="text" value="<?php echo esc_attr( get_post_meta( $post->ID, '_custom_body_class', true ) ); ?>" placeholder="e.g. light-theme new-year-promo" />
+            <div class="custom-body-class-input-description">Use blank space to separate multiple classes, e.g. first-class second-class</div>
+            <?php wp_nonce_field( 'custom_body_class_' . $post->ID, 'custom_body_class_nonce', false, true ); ?>
+        </div>
+        <?php
+    }
+
+    /**
+     * Save custom body class input
+     *
+     * @since 3.9.0
+     */
+    public function save_custom_body_class( $post_id ) {
+
+        // Only proceed if nonce is verified
+        if ( isset( $_POST['custom_body_class_nonce'] ) && wp_verify_nonce( $_POST['custom_body_class_nonce'], 'custom_body_class_' . $post_id ) ) {
+
+            // Get the value of external permalink from input field
+            $custom_body_class = isset( $_POST['custom_body_class'] ) ? sanitize_text_field( trim( $_POST['custom_body_class'] ) ) : '';
+
+            // Update or delete external permalink post meta
+            if ( ! empty( $custom_body_class ) ) {
+                update_post_meta( $post_id, '_custom_body_class', $custom_body_class );
+            } else {
+                delete_post_meta( $post_id, '_custom_body_class' );
+            }
+
+        }
+
+    }
+    
+    /**
+     * Append custom body classes to the frontend <body> tag
+     *
+     * @since 4.4.0
+     */
+    public function append_custom_body_class( $classes ) {
+
+        // Only add custom body classes to the singular view of enabled post types
+        if ( is_singular() ) {
+
+            global $post;
+            $custom_body_classes = get_post_meta( $post->ID, '_custom_body_class', true );
+
+            if ( ! empty( $custom_body_classes ) ) {
+
+                $custom_body_classes = explode( ' ', $custom_body_classes );
+
+                foreach( $custom_body_classes as $custom_body_class ) {
+                    $classes[] = sanitize_html_class( $custom_body_class );
+                }
+
+            }
+
+        }
+
+        return $classes;
+
+    }
+    
+}