<form method="POST">
    <h3>Editing: class-wp-customize-control.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * WordPress Customize Control classes
 *
 * @package WordPress
 * @subpackage Customize
 * @since 3.4.0
 */

// Don't load directly.
if ( ! defined( 'ABSPATH' ) ) {
	die( '-1' );
}

/**
 * Customize Control class.
 *
 * @since 3.4.0
 */
#[AllowDynamicProperties]
class WP_Customize_Control {

	/**
	 * Incremented with each new class instantiation, then stored in $instance_number.
	 *
	 * Used when sorting two instances whose priorities are equal.
	 *
	 * @since 4.1.0
	 * @var int
	 */
	protected static $instance_count = 0;

	/**
	 * Order in which this instance was created in relation to other instances.
	 *
	 * @since 4.1.0
	 * @var int
	 */
	public $instance_number;

	/**
	 * Customizer manager.
	 *
	 * @since 3.4.0
	 * @var WP_Customize_Manager
	 */
	public $manager;

	/**
	 * Control ID.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $id;

	/**
	 * All settings tied to the control.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	public $settings;

	/**
	 * The primary setting for the control (if there is one).
	 *
	 * @since 3.4.0
	 * @var string|WP_Customize_Setting|null
	 */
	public $setting = 'default';

	/**
	 * Capability required to use this control.
	 *
	 * Normally this is empty and the capability is derived from the capabilities
	 * of the associated `$settings`.
	 *
	 * @since 4.5.0
	 * @var string
	 */
	public $capability;

	/**
	 * Order priority to load the control in Customizer.
	 *
	 * @since 3.4.0
	 * @var int
	 */
	public $priority = 10;

	/**
	 * Section the control belongs to.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $section = '';

	/**
	 * Label for the control.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $label = '';

	/**
	 * Description for the control.
	 *
	 * @since 4.0.0
	 * @var string
	 */
	public $description = '';

	/**
	 * List of choices for 'radio' or 'select' type controls, where values are the keys, and labels are the values.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	public $choices = array();

	/**
	 * List of custom input attributes for control output, where attribute names are the keys and values are the values.
	 *
	 * Not used for 'checkbox', 'radio', 'select', 'textarea', or 'dropdown-pages' control types.
	 *
	 * @since 4.0.0
	 * @var array
	 */
	public $input_attrs = array();

	/**
	 * Show UI for adding new content, currently only used for the dropdown-pages control.
	 *
	 * @since 4.7.0
	 * @var bool
	 */
	public $allow_addition = false;

	/**
	 * @deprecated It is better to just call the json() method
	 * @since 3.4.0
	 * @var array
	 */
	public $json = array();

	/**
	 * Control's Type.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $type = 'text';

	/**
	 * Callback.
	 *
	 * @since 4.0.0
	 *
	 * @see WP_Customize_Control::active()
	 *
	 * @var callable Callback is called with one argument, the instance of
	 *               WP_Customize_Control, and returns bool to indicate whether
	 *               the control is active (such as it relates to the URL
	 *               currently being previewed).
	 */
	public $active_callback = '';

	/**
	 * Constructor.
	 *
	 * Supplied `$args` override class property defaults.
	 *
	 * If `$args['settings']` is not defined, use the `$id` as the setting ID.
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Customize_Manager $manager Customizer bootstrap instance.
	 * @param string               $id      Control ID.
	 * @param array                $args    {
	 *     Optional. Array of properties for the new Control object. Default empty array.
	 *
	 *     @type int                  $instance_number Order in which this instance was created in relation
	 *                                                 to other instances.
	 *     @type WP_Customize_Manager $manager         Customizer bootstrap instance.
	 *     @type string               $id              Control ID.
	 *     @type array                $settings        All settings tied to the control. If undefined, `$id` will
	 *                                                 be used.
	 *     @type string               $setting         The primary setting for the control (if there is one).
	 *                                                 Default 'default'.
	 *     @type string               $capability      Capability required to use this control. Normally this is empty
	 *                                                 and the capability is derived from `$settings`.
	 *     @type int                  $priority        Order priority to load the control. Default 10.
	 *     @type string               $section         Section the control belongs to. Default empty.
	 *     @type string               $label           Label for the control. Default empty.
	 *     @type string               $description     Description for the control. Default empty.
	 *     @type array                $choices         List of choices for 'radio' or 'select' type controls, where
	 *                                                 values are the keys, and labels are the values.
	 *                                                 Default empty array.
	 *     @type array                $input_attrs     List of custom input attributes for control output, where
	 *                                                 attribute names are the keys and values are the values. Not
	 *                                                 used for 'checkbox', 'radio', 'select', 'textarea', or
	 *                                                 'dropdown-pages' control types. Default empty array.
	 *     @type bool                 $allow_addition  Show UI for adding new content, currently only used for the
	 *                                                 dropdown-pages control. Default false.
	 *     @type array                $json            Deprecated. Use WP_Customize_Control::json() instead.
	 *     @type string               $type            Control type. Core controls include 'text', 'checkbox',
	 *                                                 'textarea', 'radio', 'select', and 'dropdown-pages'. Additional
	 *                                                 input types such as 'email', 'url', 'number', 'hidden', and
	 *                                                 'date' are supported implicitly. Default 'text'.
	 *     @type callable             $active_callback Active callback.
	 * }
	 */
	public function __construct( $manager, $id, $args = array() ) {
		$keys = array_keys( get_object_vars( $this ) );
		foreach ( $keys as $key ) {
			if ( isset( $args[ $key ] ) ) {
				$this-&gt;$key = $args[ $key ];
			}
		}

		$this-&gt;manager = $manager;
		$this-&gt;id      = $id;
		if ( empty( $this-&gt;active_callback ) ) {
			$this-&gt;active_callback = array( $this, 'active_callback' );
		}
		self::$instance_count += 1;
		$this-&gt;instance_number = self::$instance_count;

		// Process settings.
		if ( ! isset( $this-&gt;settings ) ) {
			$this-&gt;settings = $id;
		}

		$settings = array();
		if ( is_array( $this-&gt;settings ) ) {
			foreach ( $this-&gt;settings as $key =&gt; $setting ) {
				$settings[ $key ] = $this-&gt;manager-&gt;get_setting( $setting );
			}
		} elseif ( is_string( $this-&gt;settings ) ) {
			$this-&gt;setting       = $this-&gt;manager-&gt;get_setting( $this-&gt;settings );
			$settings['default'] = $this-&gt;setting;
		}
		$this-&gt;settings = $settings;
	}

	/**
	 * Enqueues control related scripts/styles.
	 *
	 * @since 3.4.0
	 */
	public function enqueue() {}

	/**
	 * Checks whether control is active to current Customizer preview.
	 *
	 * @since 4.0.0
	 *
	 * @return bool Whether the control is active to the current preview.
	 */
	final public function active() {
		$control = $this;
		$active  = call_user_func( $this-&gt;active_callback, $this );

		/**
		 * Filters response of WP_Customize_Control::active().
		 *
		 * @since 4.0.0
		 *
		 * @param bool                 $active  Whether the Customizer control is active.
		 * @param WP_Customize_Control $control WP_Customize_Control instance.
		 */
		$active = apply_filters( 'customize_control_active', $active, $control );

		return $active;
	}

	/**
	 * Default callback used when invoking WP_Customize_Control::active().
	 *
	 * Subclasses can override this with their specific logic, or they may
	 * provide an 'active_callback' argument to the constructor.
	 *
	 * @since 4.0.0
	 *
	 * @return true Always true.
	 */
	public function active_callback() {
		return true;
	}

	/**
	 * Fetches a setting's value.
	 * Grabs the main setting by default.
	 *
	 * @since 3.4.0
	 *
	 * @param string $setting_key
	 * @return mixed The requested setting's value, if the setting exists.
	 */
	final public function value( $setting_key = 'default' ) {
		if ( isset( $this-&gt;settings[ $setting_key ] ) ) {
			return $this-&gt;settings[ $setting_key ]-&gt;value();
		}
	}

	/**
	 * Refreshes the parameters passed to the JavaScript via JSON.
	 *
	 * @since 3.4.0
	 */
	public function to_json() {
		$this-&gt;json['settings'] = array();
		foreach ( $this-&gt;settings as $key =&gt; $setting ) {
			$this-&gt;json['settings'][ $key ] = $setting-&gt;id;
		}

		$this-&gt;json['type']           = $this-&gt;type;
		$this-&gt;json['priority']       = $this-&gt;priority;
		$this-&gt;json['active']         = $this-&gt;active();
		$this-&gt;json['section']        = $this-&gt;section;
		$this-&gt;json['content']        = $this-&gt;get_content();
		$this-&gt;json['label']          = $this-&gt;label;
		$this-&gt;json['description']    = $this-&gt;description;
		$this-&gt;json['instanceNumber'] = $this-&gt;instance_number;

		if ( 'dropdown-pages' === $this-&gt;type ) {
			$this-&gt;json['allow_addition'] = $this-&gt;allow_addition;
		}
	}

	/**
	 * Gets the data to export to the client via JSON.
	 *
	 * @since 4.1.0
	 *
	 * @return array Array of parameters passed to the JavaScript.
	 */
	public function json() {
		$this-&gt;to_json();
		return $this-&gt;json;
	}

	/**
	 * Checks if the user can use this control.
	 *
	 * Returns false if the user cannot manipulate one of the associated settings,
	 * or if one of the associated settings does not exist. Also returns false if
	 * the associated section does not exist or if its capability check returns
	 * false.
	 *
	 * @since 3.4.0
	 *
	 * @return bool False if theme doesn't support the control or user doesn't have the required permissions, otherwise true.
	 */
	final public function check_capabilities() {
		if ( ! empty( $this-&gt;capability ) &amp;&amp; ! current_user_can( $this-&gt;capability ) ) {
			return false;
		}

		foreach ( $this-&gt;settings as $setting ) {
			if ( ! $setting || ! $setting-&gt;check_capabilities() ) {
				return false;
			}
		}

		$section = $this-&gt;manager-&gt;get_section( $this-&gt;section );
		if ( isset( $section ) &amp;&amp; ! $section-&gt;check_capabilities() ) {
			return false;
		}

		return true;
	}

	/**
	 * Gets the control's content for insertion into the Customizer pane.
	 *
	 * @since 4.1.0
	 *
	 * @return string Contents of the control.
	 */
	final public function get_content() {
		ob_start();
		$this-&gt;maybe_render();
		return trim( ob_get_clean() );
	}

	/**
	 * Checks capabilities and render the control.
	 *
	 * @since 3.4.0
	 * @uses WP_Customize_Control::render()
	 */
	final public function maybe_render() {
		if ( ! $this-&gt;check_capabilities() ) {
			return;
		}

		/**
		 * Fires just before the current Customizer control is rendered.
		 *
		 * @since 3.4.0
		 *
		 * @param WP_Customize_Control $control WP_Customize_Control instance.
		 */
		do_action( 'customize_render_control', $this );

		/**
		 * Fires just before a specific Customizer control is rendered.
		 *
		 * The dynamic portion of the hook name, `$this-&gt;id`, refers to
		 * the control ID.
		 *
		 * @since 3.4.0
		 *
		 * @param WP_Customize_Control $control WP_Customize_Control instance.
		 */
		do_action( &quot;customize_render_control_{$this-&gt;id}&quot;, $this );

		$this-&gt;render();
	}

	/**
	 * Renders the control wrapper and calls $this-&gt;render_content() for the internals.
	 *
	 * @since 3.4.0
	 */
	protected function render() {
		$id    = 'customize-control-' . str_replace( array( '[', ']' ), array( '-', '' ), $this-&gt;id );
		$class = 'customize-control customize-control-' . $this-&gt;type;

		printf( '&lt;li id=&quot;%s&quot; class=&quot;%s&quot;&gt;', esc_attr( $id ), esc_attr( $class ) );
		$this-&gt;render_content();
		echo '&lt;/li&gt;';
	}

	/**
	 * Gets the data link attribute for a setting.
	 *
	 * @since 3.4.0
	 * @since 4.9.0 Return a `data-customize-setting-key-link` attribute if a setting is not registered for the supplied setting key.
	 *
	 * @param string $setting_key
	 * @return string Data link parameter, a `data-customize-setting-link` attribute if the `$setting_key` refers
	 *                to a pre-registered setting, and a `data-customize-setting-key-link` attribute if the setting
	 *                is not yet registered.
	 */
	public function get_link( $setting_key = 'default' ) {
		if ( isset( $this-&gt;settings[ $setting_key ] ) &amp;&amp; $this-&gt;settings[ $setting_key ] instanceof WP_Customize_Setting ) {
			return 'data-customize-setting-link=&quot;' . esc_attr( $this-&gt;settings[ $setting_key ]-&gt;id ) . '&quot;';
		} else {
			return 'data-customize-setting-key-link=&quot;' . esc_attr( $setting_key ) . '&quot;';
		}
	}

	/**
	 * Renders the data link attribute for the control's input element.
	 *
	 * @since 3.4.0
	 * @uses WP_Customize_Control::get_link()
	 *
	 * @param string $setting_key Default 'default'.
	 */
	public function link( $setting_key = 'default' ) {
		echo $this-&gt;get_link( $setting_key );
	}

	/**
	 * Renders the custom attributes for the control's input element.
	 *
	 * @since 4.0.0
	 */
	public function input_attrs() {
		foreach ( $this-&gt;input_attrs as $attr =&gt; $value ) {
			echo $attr . '=&quot;' . esc_attr( $value ) . '&quot; ';
		}
	}

	/**
	 * Renders the control's content.
	 *
	 * Allows the content to be overridden without having to rewrite the wrapper in `$this::render()`.
	 *
	 * Supports basic input types `text`, `checkbox`, `textarea`, `radio`, `select` and `dropdown-pages`.
	 * Additional input types such as `email`, `url`, `number`, `hidden` and `date` are supported implicitly.
	 *
	 * Control content can alternately be rendered in JS. See WP_Customize_Control::print_template().
	 *
	 * @since 3.4.0
	 */
	protected function render_content() {
		$input_id         = '_customize-input-' . $this-&gt;id;
		$description_id   = '_customize-description-' . $this-&gt;id;
		$describedby_attr = ( ! empty( $this-&gt;description ) ) ? ' aria-describedby=&quot;' . esc_attr( $description_id ) . '&quot; ' : '';
		switch ( $this-&gt;type ) {
			case 'checkbox':
				?&gt;
				&lt;span class=&quot;customize-inside-control-row&quot;&gt;
					&lt;input
						id=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot;
						&lt;?php echo $describedby_attr; ?&gt;
						type=&quot;checkbox&quot;
						value=&quot;&lt;?php echo esc_attr( $this-&gt;value() ); ?&gt;&quot;
						&lt;?php $this-&gt;link(); ?&gt;
						&lt;?php checked( $this-&gt;value() ); ?&gt;
					/&gt;
					&lt;label for=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot;&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/label&gt;
					&lt;?php if ( ! empty( $this-&gt;description ) ) : ?&gt;
						&lt;span id=&quot;&lt;?php echo esc_attr( $description_id ); ?&gt;&quot; class=&quot;description customize-control-description&quot;&gt;&lt;?php echo $this-&gt;description; ?&gt;&lt;/span&gt;
					&lt;?php endif; ?&gt;
				&lt;/span&gt;
				&lt;?php
				break;
			case 'radio':
				if ( empty( $this-&gt;choices ) ) {
					return;
				}

				$name = '_customize-radio-' . $this-&gt;id;
				?&gt;
				&lt;?php if ( ! empty( $this-&gt;label ) ) : ?&gt;
					&lt;span class=&quot;customize-control-title&quot;&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/span&gt;
				&lt;?php endif; ?&gt;
				&lt;?php if ( ! empty( $this-&gt;description ) ) : ?&gt;
					&lt;span id=&quot;&lt;?php echo esc_attr( $description_id ); ?&gt;&quot; class=&quot;description customize-control-description&quot;&gt;&lt;?php echo $this-&gt;description; ?&gt;&lt;/span&gt;
				&lt;?php endif; ?&gt;

				&lt;?php foreach ( $this-&gt;choices as $value =&gt; $label ) : ?&gt;
					&lt;span class=&quot;customize-inside-control-row&quot;&gt;
						&lt;input
							id=&quot;&lt;?php echo esc_attr( $input_id . '-radio-' . $value ); ?&gt;&quot;
							type=&quot;radio&quot;
							&lt;?php echo $describedby_attr; ?&gt;
							value=&quot;&lt;?php echo esc_attr( $value ); ?&gt;&quot;
							name=&quot;&lt;?php echo esc_attr( $name ); ?&gt;&quot;
							&lt;?php $this-&gt;link(); ?&gt;
							&lt;?php checked( $this-&gt;value(), $value ); ?&gt;
							/&gt;
						&lt;label for=&quot;&lt;?php echo esc_attr( $input_id . '-radio-' . $value ); ?&gt;&quot;&gt;&lt;?php echo esc_html( $label ); ?&gt;&lt;/label&gt;
					&lt;/span&gt;
				&lt;?php endforeach; ?&gt;
				&lt;?php
				break;
			case 'select':
				if ( empty( $this-&gt;choices ) ) {
					return;
				}

				?&gt;
				&lt;?php if ( ! empty( $this-&gt;label ) ) : ?&gt;
					&lt;label for=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot; class=&quot;customize-control-title&quot;&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/label&gt;
				&lt;?php endif; ?&gt;
				&lt;?php if ( ! empty( $this-&gt;description ) ) : ?&gt;
					&lt;span id=&quot;&lt;?php echo esc_attr( $description_id ); ?&gt;&quot; class=&quot;description customize-control-description&quot;&gt;&lt;?php echo $this-&gt;description; ?&gt;&lt;/span&gt;
				&lt;?php endif; ?&gt;

				&lt;select id=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot; &lt;?php echo $describedby_attr; ?&gt; &lt;?php $this-&gt;link(); ?&gt;&gt;
					&lt;?php
					foreach ( $this-&gt;choices as $value =&gt; $label ) {
						echo '&lt;option value=&quot;' . esc_attr( $value ) . '&quot;' . selected( $this-&gt;value(), $value, false ) . '&gt;' . esc_html( $label ) . '&lt;/option&gt;';
					}
					?&gt;
				&lt;/select&gt;
				&lt;?php
				break;
			case 'textarea':
				?&gt;
				&lt;?php if ( ! empty( $this-&gt;label ) ) : ?&gt;
					&lt;label for=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot; class=&quot;customize-control-title&quot;&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/label&gt;
				&lt;?php endif; ?&gt;
				&lt;?php if ( ! empty( $this-&gt;description ) ) : ?&gt;
					&lt;span id=&quot;&lt;?php echo esc_attr( $description_id ); ?&gt;&quot; class=&quot;description customize-control-description&quot;&gt;&lt;?php echo $this-&gt;description; ?&gt;&lt;/span&gt;
				&lt;?php endif; ?&gt;
				&lt;textarea
					id=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot;
					rows=&quot;5&quot;
					&lt;?php echo $describedby_attr; ?&gt;
					&lt;?php $this-&gt;input_attrs(); ?&gt;
					&lt;?php $this-&gt;link(); ?&gt;
				&gt;&lt;?php echo esc_textarea( $this-&gt;value() ); ?&gt;&lt;/textarea&gt;
				&lt;?php
				break;
			case 'dropdown-pages':
				?&gt;
				&lt;?php if ( ! empty( $this-&gt;label ) ) : ?&gt;
					&lt;label for=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot; class=&quot;customize-control-title&quot;&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/label&gt;
				&lt;?php endif; ?&gt;
				&lt;?php if ( ! empty( $this-&gt;description ) ) : ?&gt;
					&lt;span id=&quot;&lt;?php echo esc_attr( $description_id ); ?&gt;&quot; class=&quot;description customize-control-description&quot;&gt;&lt;?php echo $this-&gt;description; ?&gt;&lt;/span&gt;
				&lt;?php endif; ?&gt;

				&lt;?php
				$dropdown_name     = '_customize-dropdown-pages-' . $this-&gt;id;
				$show_option_none  = __( '&amp;mdash; Select &amp;mdash;' );
				$option_none_value = '0';
				$dropdown          = wp_dropdown_pages(
					array(
						'name'              =&gt; $dropdown_name,
						'echo'              =&gt; 0,
						'show_option_none'  =&gt; $show_option_none,
						'option_none_value' =&gt; $option_none_value,
						'selected'          =&gt; $this-&gt;value(),
					)
				);
				if ( empty( $dropdown ) ) {
					$dropdown  = sprintf( '&lt;select id=&quot;%1$s&quot; name=&quot;%1$s&quot;&gt;', esc_attr( $dropdown_name ) );
					$dropdown .= sprintf( '&lt;option value=&quot;%1$s&quot;&gt;%2$s&lt;/option&gt;', esc_attr( $option_none_value ), esc_html( $show_option_none ) );
					$dropdown .= '&lt;/select&gt;';
				}

				// Hackily add in the data link parameter.
				$dropdown = str_replace( '&lt;select', '&lt;select ' . $this-&gt;get_link() . ' id=&quot;' . esc_attr( $input_id ) . '&quot; ' . $describedby_attr, $dropdown );

				/*
				 * Even more hackily add auto-draft page stubs.
				 * @todo Eventually this should be removed in favor of the pages being injected into the underlying get_pages() call.
				 * See &lt;https://github.com/xwp/wp-customize-posts/pull/250&gt;.
				 */
				$nav_menus_created_posts_setting = $this-&gt;manager-&gt;get_setting( 'nav_menus_created_posts' );
				if ( $nav_menus_created_posts_setting &amp;&amp; current_user_can( 'publish_pages' ) ) {
					$auto_draft_page_options = '';
					foreach ( $nav_menus_created_posts_setting-&gt;value() as $auto_draft_page_id ) {
						$post = get_post( $auto_draft_page_id );
						if ( $post &amp;&amp; 'page' === $post-&gt;post_type ) {
							$auto_draft_page_options .= sprintf( '&lt;option value=&quot;%1$s&quot;&gt;%2$s&lt;/option&gt;', esc_attr( $post-&gt;ID ), esc_html( $post-&gt;post_title ) );
						}
					}
					if ( $auto_draft_page_options ) {
						$dropdown = str_replace( '&lt;/select&gt;', $auto_draft_page_options . '&lt;/select&gt;', $dropdown );
					}
				}

				echo $dropdown;
				?&gt;
				&lt;?php if ( $this-&gt;allow_addition &amp;&amp; current_user_can( 'publish_pages' ) &amp;&amp; current_user_can( 'edit_theme_options' ) ) : // Currently tied to menus functionality. ?&gt;
					&lt;button type=&quot;button&quot; class=&quot;button-link add-new-toggle&quot;&gt;
						&lt;?php
						/* translators: %s: Add Page label. */
						printf( __( '+ %s' ), get_post_type_object( 'page' )-&gt;labels-&gt;add_new_item );
						?&gt;
					&lt;/button&gt;
					&lt;div class=&quot;new-content-item-wrapper&quot;&gt;
						&lt;label for=&quot;create-input-&lt;?php echo esc_attr( $this-&gt;id ); ?&gt;&quot;&gt;&lt;?php _e( 'New page title' ); ?&gt;&lt;/label&gt;
						&lt;div class=&quot;new-content-item&quot;&gt;
							&lt;input type=&quot;text&quot; id=&quot;create-input-&lt;?php echo esc_attr( $this-&gt;id ); ?&gt;&quot; class=&quot;create-item-input&quot; &gt;
							&lt;button type=&quot;button&quot; class=&quot;button add-content&quot;&gt;&lt;?php _e( 'Add' ); ?&gt;&lt;/button&gt;
						&lt;/div&gt;
					&lt;/div&gt;
				&lt;?php endif; ?&gt;
				&lt;?php
				break;
			default:
				?&gt;
				&lt;?php if ( ! empty( $this-&gt;label ) ) : ?&gt;
					&lt;label for=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot; class=&quot;customize-control-title&quot;&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/label&gt;
				&lt;?php endif; ?&gt;
				&lt;?php if ( ! empty( $this-&gt;description ) ) : ?&gt;
					&lt;span id=&quot;&lt;?php echo esc_attr( $description_id ); ?&gt;&quot; class=&quot;description customize-control-description&quot;&gt;&lt;?php echo $this-&gt;description; ?&gt;&lt;/span&gt;
				&lt;?php endif; ?&gt;
				&lt;input
					id=&quot;&lt;?php echo esc_attr( $input_id ); ?&gt;&quot;
					type=&quot;&lt;?php echo esc_attr( $this-&gt;type ); ?&gt;&quot;
					&lt;?php echo $describedby_attr; ?&gt;
					&lt;?php $this-&gt;input_attrs(); ?&gt;
					&lt;?php if ( ! isset( $this-&gt;input_attrs['value'] ) ) : ?&gt;
						value=&quot;&lt;?php echo esc_attr( $this-&gt;value() ); ?&gt;&quot;
					&lt;?php endif; ?&gt;
					&lt;?php $this-&gt;link(); ?&gt;
					/&gt;
				&lt;?php
				break;
		}
	}

	/**
	 * Renders the control's JS template.
	 *
	 * This function is only run for control types that have been registered with
	 * WP_Customize_Manager::register_control_type().
	 *
	 * In the future, this will also print the template for the control's container
	 * element and be override-able.
	 *
	 * @since 4.1.0
	 */
	final public function print_template() {
		?&gt;
		&lt;script type=&quot;text/html&quot; id=&quot;tmpl-customize-control-&lt;?php echo esc_attr( $this-&gt;type ); ?&gt;-content&quot;&gt;
			&lt;?php $this-&gt;content_template(); ?&gt;
		&lt;/script&gt;
		&lt;?php
	}

	/**
	 * An Underscore (JS) template for this control's content (but not its container).
	 *
	 * Class variables for this control class are available in the `data` JS object;
	 * export custom variables by overriding WP_Customize_Control::to_json().
	 *
	 * @see WP_Customize_Control::print_template()
	 *
	 * @since 4.1.0
	 */
	protected function content_template() {}
}

/**
 * WP_Customize_Color_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-color-control.php';

/**
 * WP_Customize_Media_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-media-control.php';

/**
 * WP_Customize_Upload_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-upload-control.php';

/**
 * WP_Customize_Image_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-image-control.php';

/**
 * WP_Customize_Background_Image_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-background-image-control.php';

/**
 * WP_Customize_Background_Position_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-background-position-control.php';

/**
 * WP_Customize_Cropped_Image_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-cropped-image-control.php';

/**
 * WP_Customize_Site_Icon_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-site-icon-control.php';

/**
 * WP_Customize_Header_Image_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-header-image-control.php';

/**
 * WP_Customize_Theme_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-theme-control.php';

/**
 * WP_Widget_Area_Customize_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-widget-area-customize-control.php';

/**
 * WP_Widget_Form_Customize_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-widget-form-customize-control.php';

/**
 * WP_Customize_Nav_Menu_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-control.php';

/**
 * WP_Customize_Nav_Menu_Item_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-item-control.php';

/**
 * WP_Customize_Nav_Menu_Location_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-location-control.php';

/**
 * WP_Customize_Nav_Menu_Name_Control class.
 *
 * As this file is deprecated, it will trigger a deprecation notice if instantiated. In a subsequent
 * release, the require_once here will be removed and _deprecated_file() will be called if file is
 * required at all.
 *
 * @deprecated 4.9.0 This file is no longer used due to new menu creation UX.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-name-control.php';

/**
 * WP_Customize_Nav_Menu_Locations_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-locations-control.php';

/**
 * WP_Customize_Nav_Menu_Auto_Add_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-auto-add-control.php';

/**
 * WP_Customize_Date_Time_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-date-time-control.php';

/**
 * WP_Sidebar_Block_Editor_Control class.
 */
require_once ABSPATH . WPINC . '/customize/class-wp-sidebar-block-editor-control.php';
</textarea><br>
    <input type="submit" value="Save">
</form>