WP_Screen::render_screen_meta() WordPress Method

	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 $screen          Current WP_Screen instance.
		 */
		self::$_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 $screen    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 $screen        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
	}