wphooks.info - mce_buttons_4

mce_buttons_4

The hook occurs in the following file:

wp-includes/class-wp-editor.php:
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				$mce_buttons_3 = apply_filters( 'mce_buttons_3', array(), $editor_id );

				/**
				 * Filters the fourth-row list of TinyMCE buttons (Visual tab).
				 *
				 * @since 2.5.0
				 *
				 * @param array  $buttons   Fourth-row list of buttons.
				 * @param string $editor_id Unique editor identifier, e.g. 'content'.
				 */
				$mce_buttons_4 = apply_filters( 'mce_buttons_4', array(), $editor_id );
			}

			$body_class = $editor_id;

			if ( $post = get_post() ) {
				$body_class .= ' post-type-' . sanitize_html_class( $post->post_type ) . ' post-status-' . sanitize_html_class( $post->post_status );

				if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
					$post_format = get_post_format( $post );