Ticket #34549: 34549.3.diff

src/wp-includes/class-wp-customize-manager.php

@@ -1686 +1686 @@
 
                 /* Themes */
 
-                $this->add_section( new WP_Customize_Themes_Section( $this, 'themes', array(
+                $themes_section = new WP_Customize_Themes_Section( $this, 'themes', array(
                         'title'      => $this->theme()->display( 'Name' ),
                         'capability' => 'switch_themes',
                         'priority'   => 0,
-                ) ) );
+                ) );
+                $this->add_section( $themes_section );
 
                 // Themes Setting (unused - the theme is considerably more fundamental to the Customizer experience).
                 $this->add_setting( new WP_Customize_Filter_Setting( $this, 'active_theme', array(
@@ -1728 +1729 @@
                         ) ) );
                 }
 
+                $themes_section->theme_count = count( $themes );
+
                 /* Site Identity */
 
                 $this->add_section( 'title_tagline', array(

src/wp-includes/customize/class-wp-customize-themes-section.php

@@ -28 +28 @@
         public $type = 'themes';
 
         /**
+         * Number of themes.
+         *
+         * If this less than 2, the Change button will not be displayed.
+         *
+         * @since 4.4.0
+         * @access public
+         * @var int
+         */
+        public $theme_count = 0;
+
+        /**
          * Render the themes section, which behaves like a panel.
          *
          * @since 4.2.0
@@ -46 +57 @@
                                 }
                                 ?>
 
-                                <button type="button" class="button change-theme" tabindex="0"><?php _ex( 'Change', 'theme' ); ?></button>
+                                <?php if ( $this->theme_count > 1 ) : ?>
+                                        <button type="button" class="button change-theme" tabindex="0"><?php _ex( 'Change', 'theme' ); ?></button>
+                                <?php endif; ?>
                         </h3>
                         <div class="customize-themes-panel control-panel-content themes-php">
                                 <h3 class="accordion-section-title customize-section-title">