<?php

/**

 * Revisions administration panel

 *

 * Requires wp-admin/includes/revision.php.

 *

 * @package WordPress

 * @subpackage Administration

 * @since 2.6.0

 */

/** WordPress Administration Bootstrap */

require ABSPATH . 'wp-admin/includes/revision.php';

/**

 * @global int    $revision Optional. The revision ID.

 * @global string $action   The action to take.

 *                          Accepts 'restore', 'view' or 'edit'.

 * @global int    $from     The revision to compare from.

 * @global int    $to       Optional, required if revision missing. The revision to compare to.

 */

wp_reset_vars( array( 'revision', 'action', 'from', 'to' ) );

$revision_id = absint( $revision );

$from = is_numeric( $from ) ? absint( $from ) : null;

if ( ! $revision_id ) {

	$revision_id = absint( $to );

}

$redirect = 'edit.php';

switch ( $action ) {

	case 'restore':

			break;

		}

		if ( ! current_user_can( 'edit_post', $revision->post_parent ) ) {

			break;

		}

			break;

		}

		if ( ! wp_revisions_enabled( $post ) && ! wp_is_post_autosave( $revision ) ) {

			$redirect = 'edit.php?post_type=' . $post->post_type;

			break;

		}

		if ( wp_check_post_lock( $post->ID ) ) {

			break;

		}

		check_admin_referer( "restore-post_{$revision->ID}" );

		wp_restore_post_revision( $revision->ID );

		$redirect = add_query_arg(

			array(

				'message'  => 5,

				'revision' => $revision->ID,

			),

			get_edit_post_link( $post->ID, 'url' )

		);

		break;

	case 'view':

	case 'edit':

	default:

			break;

		}

			break;

		}

		if ( ! current_user_can( 'read_post', $revision->ID ) || ! current_user_can( 'edit_post', $revision->post_parent ) ) {

			break;

		}

		if ( ! wp_revisions_enabled( $post ) && ! wp_is_post_autosave( $revision ) ) {

			$redirect = 'edit.php?post_type=' . $post->post_type;

			break;

		}

		$post_edit_link = get_edit_post_link();

		$post_title     = '<a href="' . $post_edit_link . '">' . _draft_or_post_title() . '</a>';

		$h1             = sprintf( __( 'Compare Revisions of “%s”' ), $post_title );

		$return_to_post = '<a href="' . $post_edit_link . '">' . __( '&larr; Return to editor' ) . '</a>';

		$title          = __( 'Revisions' );

		$redirect = false;

		break;

}

// Empty post_type means either malformed object found, or no valid parent was found.

if ( ! $redirect && empty( $post->post_type ) ) {

	$redirect = 'edit.php';

}

if ( ! empty( $redirect ) ) {

	wp_redirect( $redirect );

	exit;

}

// This is so that the correct "Edit" menu item is selected.

if ( ! empty( $post->post_type ) && 'post' != $post->post_type ) {

} else {

}

wp_enqueue_script( 'revisions' );

wp_localize_script( 'revisions', '_wpRevisionsSettings', wp_prepare_revisions_for_js( $post, $revision_id, $from ) );

/* Revisions Help Tab */

$revisions_overview  = '<p>' . __( 'This screen is used for managing your content revisions.' ) . '</p>';

$revisions_overview .= '<p>' . __( 'Revisions are saved copies of your post or page, which are periodically created as you update your content. The red text on the left shows the content that was removed. The green text on the right shows the content that was added.' ) . '</p>';

$revisions_overview .= '<p>' . __( 'From this screen you can review, compare, and restore revisions:' ) . '</p>';

$revisions_overview .= '<ul><li>' . __( 'To navigate between revisions, <strong>drag the slider handle left or right</strong> or <strong>use the Previous or Next buttons</strong>.' ) . '</li>';

$revisions_overview .= '<li>' . __( 'Compare two different revisions by <strong>selecting the &#8220;Compare any two revisions&#8221; box</strong> to the side.' ) . '</li>';

$revisions_overview .= '<li>' . __( 'To restore a revision, <strong>click Restore This Revision</strong>.' ) . '</li></ul>';

get_current_screen()->add_help_tab(

	array(

		'id'      => 'revisions-overview',

		'title'   => __( 'Overview' ),

		'content' => $revisions_overview,

	)

);

$revisions_sidebar  = '<p><strong>' . __( 'For more information:' ) . '</strong></p>';

$revisions_sidebar .= '<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>';

get_current_screen()->set_help_sidebar( $revisions_sidebar );

?>

<div class="wrap">

	<h1 class="long-header"><?php echo $h1; ?></h1>

	<?php echo $return_to_post; ?>

</div>

<?php

wp_print_revision_templates();