WordPress/wp-admin/revision.php
Mark Jaquith 93514ba101 Revisions: Better error handling.
* Shows an error message if the current diff can't be loaded.
* For bulk pre-loading, catches errors, and cuts subsequent requests in half, until eventually giving up.
* Some CSS fixes related to this, and the loading spinner.
* `wp.revisions.loadAll()` now returns a promise representing whether or not all revisions could be loaded.

Fixes #24758.

git-svn-id: http://core.svn.wordpress.org/trunk@24732 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-07-18 16:35:19 +00:00

202 lines
7.0 KiB
PHP

<?php
/**
* Revisions administration panel.
*
* @package WordPress
* @subpackage Administration
*/
/** WordPress Administration Bootstrap */
require_once('./admin.php');
require ABSPATH . 'wp-admin/includes/revision.php';
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' :
if ( ! $revision = wp_get_post_revision( $revision_id ) )
break;
if ( ! current_user_can( 'edit_post', $revision->post_parent ) )
break;
if ( ! $post = get_post( $revision->post_parent ) )
break;
// Revisions disabled (previously checked autosavegs && ! wp_is_post_autosave( $revision ))
if ( ! wp_revisions_enabled( $post ) ) {
$redirect = 'edit.php?post_type=' . $post->post_type;
break;
}
check_admin_referer( "restore-post_{$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 :
if ( ! $revision = wp_get_post_revision( $revision_id ) )
break;
if ( ! $post = get_post( $revision->post_parent ) )
break;
if ( ! current_user_can( 'read_post', $revision->ID ) || ! current_user_can( 'read_post', $post->ID ) )
break;
// Revisions disabled and we're not looking at an autosave
if ( ! wp_revisions_enabled( $post ) && ! wp_is_post_autosave( $revision ) ) {
$redirect = 'edit.php?post_type=' . $post->post_type;
break;
}
$post_title = '<a href="' . get_edit_post_link() . '">' . _draft_or_post_title() . '</a>';
$h2 = sprintf( __( 'Compare Revisions of &#8220;%1$s&#8221;' ), $post_title );
$title = __( 'Revisions' );
$redirect = false;
break;
endswitch;
// 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 )
$parent_file = $submenu_file = 'edit.php?post_type=' . $post->post_type;
else
$parent_file = $submenu_file = 'edit.php';
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 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="http://codex.wordpress.org/Revision_Management" target="_blank">Revisions Management</a>' ) . '</p>';
$revisions_sidebar .= '<p>' . __( '<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>' ) . '</p>';
get_current_screen()->set_help_sidebar( $revisions_sidebar );
require_once( './admin-header.php' );
?>
<div class="wrap">
<?php screen_icon(); ?>
<h2 class="long-header"><?php echo $h2; ?></h2>
</div>
<script id="tmpl-revisions-frame" type="text/html">
<div class="revisions-control-frame"></div>
<div class="revisions-diff-frame"></div>
</script>
<script id="tmpl-revisions-buttons" type="text/html">
<div class="revisions-previous">
<input class="button" type="button" id="previous" value="<?php echo esc_attr_x( 'Previous', 'Button label for a previous revision' ); ?>" />
</div>
<div class="revisions-next">
<input class="button" type="button" id="next" value="<?php echo esc_attr_x( 'Next', 'Button label for a next revision' ); ?>" />
</div>
</script>
<script id="tmpl-revisions-tooltip" type="text/html">
<div class="revisions-tooltip-content">
<# if ( 'undefined' !== typeof data && 'undefined' !== typeof data.author ) { #>
{{{ data.author.avatar }}} {{ data.author.name }},
{{ data.timeAgo }}
({{ data.dateShort }})
<# } #>
</div>
<div class="revisions-tooltip-arrow"></div>
</script>
<script id="tmpl-revisions-checkbox" type="text/html">
<div class="revision-toggle-compare-mode">
<label>
<input type="checkbox" class="compare-two-revisions"
<#
if ( 'undefined' !== typeof data && data.model.attributes.compareTwoMode ) {
#> checked="checked"<#
}
#>
/>
<?php esc_attr_e( 'Compare two revisions' ); ?>
</label>
</div>
</script>
<script id="tmpl-revisions-meta" type="text/html">
<div id="diff-header">
<div id="diff-header-from" class="diff-header">
<div id="diff-title-from" class="diff-title">
<strong><?php _ex( 'From:', 'Followed by post revision info' ); ?></strong>
<# if ( 'undefined' !== typeof data.from ) { #>
{{{ data.from.attributes.author.avatar }}} {{ data.from.attributes.author.name }},
{{ data.from.attributes.timeAgo }}
({{ data.from.attributes.dateShort }})
<# } #>
</div>
<div class="clear"></div>
</div>
<div id="diff-header-to" class="diff-header">
<div id="diff-title-to" class="diff-title">
<strong><?php _ex( 'To:', 'Followed by post revision info' ); ?></strong>
<# if ( 'undefined' !== typeof data.to ) { #>
{{{ data.to.attributes.author.avatar }}} {{ data.to.attributes.author.name }},
{{ data.to.attributes.timeAgo }}
({{ data.to.attributes.dateShort }})
<# } #>
</div>
<input type="button" class="restore-revision button button-primary" data-restore-link="{{{ data.restoreLink }}}" value="<?php esc_attr_e( 'Restore This Revision' )?>" />
</div>
</div>
</script>
<script id="tmpl-revisions-diff" type="text/html">
<div class="loading-indicator"><span class="spinner"></span></div>
<div class="diff-error"><?php _e( 'Sorry, something went wrong. The requested comparison could not be loaded.' ); ?></div>
<div class="diff">
<# _.each( data.fields, function( field ) { #>
<h3>{{ field.name }}</h3>
{{{ field.diff }}}
<# }); #>
</div>
</script>
<?php
require_once( './admin-footer.php' );