wp_register_widget_control

函数
wp_register_widget_control ( $id, $name, $control_callback, $options = array(), $params )
参数
  • (int|string) $id Sidebar ID.
    Required:
  • (string) $name Sidebar display name.
    Required:
  • (callable) $control_callback Run when sidebar is displayed.
    Required:
  • (array) $options { Optional. Array or string of control options. Default empty array. @type int $height Never used. Default 200. @type int $width Width of the fully expanded control form (but try hard to use the default width). Default 250. @type int|string $id_base Required for multi-widgets, i.e widgets that allow multiple instances such as the text widget. The widget ID will end up looking like `{$id_base}-{$unique_number}`. }
    Required:
    Default: array()
  • (mixed) $params Optional additional parameters to pass to the callback function when it's called.
    Required:
定义位置
相关方法
wp_unregister_widget_controlregister_widget_controlunregister_widget_controlwp_render_widget_controlwp_list_widget_controls
引入
2.2.0
弃用
-

wp_register_widget_control: 这个函数用于注册一个小工具的控制形式。它接受几个参数,包括小工具的ID、名称和回调函数。

注册用于自定义选项的小工具控制回调。

function wp_register_widget_control( $id, $name, $control_callback, $options = array(), ...$params ) {
	global $wp_registered_widget_controls, $wp_registered_widget_updates, $wp_registered_widgets, $_wp_deprecated_widgets_callbacks;

	$id      = strtolower( $id );
	$id_base = _get_widget_id_base( $id );

	if ( empty( $control_callback ) ) {
		unset( $wp_registered_widget_controls[ $id ] );
		unset( $wp_registered_widget_updates[ $id_base ] );
		return;
	}

	if ( in_array( $control_callback, $_wp_deprecated_widgets_callbacks, true ) && ! is_callable( $control_callback ) ) {
		unset( $wp_registered_widgets[ $id ] );
		return;
	}

	if ( isset( $wp_registered_widget_controls[ $id ] ) && ! did_action( 'widgets_init' ) ) {
		return;
	}

	$defaults          = array(
		'width'  => 250,
		'height' => 200,
	); // Height is never used.
	$options           = wp_parse_args( $options, $defaults );
	$options['width']  = (int) $options['width'];
	$options['height'] = (int) $options['height'];

	$widget = array(
		'name'     => $name,
		'id'       => $id,
		'callback' => $control_callback,
		'params'   => $params,
	);
	$widget = array_merge( $widget, $options );

	$wp_registered_widget_controls[ $id ] = $widget;

	if ( isset( $wp_registered_widget_updates[ $id_base ] ) ) {
		return;
	}

	if ( isset( $widget['params'][0]['number'] ) ) {
		$widget['params'][0]['number'] = -1;
	}

	unset( $widget['width'], $widget['height'], $widget['name'], $widget['id'] );
	$wp_registered_widget_updates[ $id_base ] = $widget;
}

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