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WP_Screen::render_screen_meta() WP 3.3.0

Render the screen's help section.

This will trigger the deprecated filters for backward compatibility.

Это метод класса: WP_Screen

Возвращает

Null. Ничего.

Использование

$WP_Screen = new WP_Screen();
$var = $WP_Screen->render_screen_meta();

Заметки

  • Global. Строка. $screen_layout_columns

Список изменений

С версии 3.3.0 Введена.

Код WP Screen::render screen meta: wp-admin/includes/class-wp-screen.php WP 5.4.1

<?php
public function render_screen_meta() {

	/**
	 * Filters the legacy contextual help list.
	 *
	 * @since 2.7.0
	 * @deprecated 3.3.0 Use {@see get_current_screen()->add_help_tab()} or
	 *                   {@see get_current_screen()->remove_help_tab()} instead.
	 *
	 * @param array     $old_compat_help Old contextual help.
	 * @param WP_Screen $this            Current WP_Screen instance.
	 */
	self::$_old_compat_help = apply_filters_deprecated(
		'contextual_help_list',
		array( self::$_old_compat_help, $this ),
		'3.3.0',
		'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()'
	);

	$old_help = isset( self::$_old_compat_help[ $this->id ] ) ? self::$_old_compat_help[ $this->id ] : '';

	/**
	 * Filters the legacy contextual help text.
	 *
	 * @since 2.7.0
	 * @deprecated 3.3.0 Use {@see get_current_screen()->add_help_tab()} or
	 *                   {@see get_current_screen()->remove_help_tab()} instead.
	 *
	 * @param string    $old_help  Help text that appears on the screen.
	 * @param string    $screen_id Screen ID.
	 * @param WP_Screen $this      Current WP_Screen instance.
	 */
	$old_help = apply_filters_deprecated(
		'contextual_help',
		array( $old_help, $this->id, $this ),
		'3.3.0',
		'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()'
	);

	// Default help only if there is no old-style block of text and no new-style help tabs.
	if ( empty( $old_help ) && ! $this->get_help_tabs() ) {

		/**
		 * Filters the default legacy contextual help text.
		 *
		 * @since 2.8.0
		 * @deprecated 3.3.0 Use {@see get_current_screen()->add_help_tab()} or
		 *                   {@see get_current_screen()->remove_help_tab()} instead.
		 *
		 * @param string $old_help_default Default contextual help text.
		 */
		$default_help = apply_filters_deprecated(
			'default_contextual_help',
			array( '' ),
			'3.3.0',
			'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()'
		);
		if ( $default_help ) {
			$old_help = '<p>' . $default_help . '</p>';
		}
	}

	if ( $old_help ) {
		$this->add_help_tab(
			array(
				'id'      => 'old-contextual-help',
				'title'   => __( 'Overview' ),
				'content' => $old_help,
			)
		);
	}

	$help_sidebar = $this->get_help_sidebar();

	$help_class = 'hidden';
	if ( ! $help_sidebar ) {
		$help_class .= ' no-sidebar';
	}

	// Time to render!
	?>
	<div id="screen-meta" class="metabox-prefs">

		<div id="contextual-help-wrap" class="<?php echo esc_attr( $help_class ); ?>" tabindex="-1" aria-label="<?php esc_attr_e( 'Contextual Help Tab' ); ?>">
			<div id="contextual-help-back"></div>
			<div id="contextual-help-columns">
				<div class="contextual-help-tabs">
					<ul>
					<?php
					$class = ' class="active"';
					foreach ( $this->get_help_tabs() as $tab ) :
						$link_id  = "tab-link-{$tab['id']}";
						$panel_id = "tab-panel-{$tab['id']}";
						?>

						<li id="<?php echo esc_attr( $link_id ); ?>"<?php echo $class; ?>>
							<a href="<?php echo esc_url( "#$panel_id" ); ?>" aria-controls="<?php echo esc_attr( $panel_id ); ?>">
								<?php echo esc_html( $tab['title'] ); ?>
							</a>
						</li>
						<?php
						$class = '';
					endforeach;
					?>
					</ul>
				</div>

				<?php if ( $help_sidebar ) : ?>
				<div class="contextual-help-sidebar">
					<?php echo $help_sidebar; ?>
				</div>
				<?php endif; ?>

				<div class="contextual-help-tabs-wrap">
					<?php
					$classes = 'help-tab-content active';
					foreach ( $this->get_help_tabs() as $tab ) :
						$panel_id = "tab-panel-{$tab['id']}";
						?>

						<div id="<?php echo esc_attr( $panel_id ); ?>" class="<?php echo $classes; ?>">
							<?php
							// Print tab content.
							echo $tab['content'];

							// If it exists, fire tab callback.
							if ( ! empty( $tab['callback'] ) ) {
								call_user_func_array( $tab['callback'], array( $this, $tab ) );
							}
							?>
						</div>
						<?php
						$classes = 'help-tab-content';
					endforeach;
					?>
				</div>
			</div>
		</div>
	<?php
	// Setup layout columns.

	/**
	 * Filters the array of screen layout columns.
	 *
	 * This hook provides back-compat for plugins using the back-compat
	 * Filters instead of add_screen_option().
	 *
	 * @since 2.8.0
	 *
	 * @param array     $empty_columns Empty array.
	 * @param string    $screen_id     Screen ID.
	 * @param WP_Screen $this          Current WP_Screen instance.
	 */
	$columns = apply_filters( 'screen_layout_columns', array(), $this->id, $this );

	if ( ! empty( $columns ) && isset( $columns[ $this->id ] ) ) {
		$this->add_option( 'layout_columns', array( 'max' => $columns[ $this->id ] ) );
	}

	if ( $this->get_option( 'layout_columns' ) ) {
		$this->columns = (int) get_user_option( "screen_layout_$this->id" );

		if ( ! $this->columns && $this->get_option( 'layout_columns', 'default' ) ) {
			$this->columns = $this->get_option( 'layout_columns', 'default' );
		}
	}
	$GLOBALS['screen_layout_columns'] = $this->columns; // Set the global for back-compat.

	// Add screen options.
	if ( $this->show_screen_options() ) {
		$this->render_screen_options();
	}
	?>
	</div>
	<?php
	if ( ! $this->get_help_tabs() && ! $this->show_screen_options() ) {
		return;
	}
	?>
	<div id="screen-meta-links">
	<?php if ( $this->show_screen_options() ) : ?>
		<div id="screen-options-link-wrap" class="hide-if-no-js screen-meta-toggle">
		<button type="button" id="show-settings-link" class="button show-settings" aria-controls="screen-options-wrap" aria-expanded="false"><?php _e( 'Screen Options' ); ?></button>
		</div>
		<?php
	endif;
	if ( $this->get_help_tabs() ) :
		?>
		<div id="contextual-help-link-wrap" class="hide-if-no-js screen-meta-toggle">
		<button type="button" id="contextual-help-link" class="button show-settings" aria-controls="contextual-help-wrap" aria-expanded="false"><?php _e( 'Help' ); ?></button>
		</div>
	<?php endif; ?>
	</div>
	<?php
}