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87464289c3
This aims to reduce ambiguity about what exactly is the "first" or "last" revision, and bring more consistency with similar wording elsewhere in core, e.g. latest posts, latest comments, etc. This affects: * `wp_save_post_revision()` * `wp_prepare_revisions_for_js()` * `WP_Customize_Manager::filter_revision_post_has_changed()` Follow-up to [53759], [53769], [53778]. Props peterwilsoncc. Fixes #55857. Built from https://develop.svn.wordpress.org/trunk@53779 git-svn-id: http://core.svn.wordpress.org/trunk@53338 1a063a9b-81f0-0310-95a4-ce76da25c4cd
471 lines
16 KiB
PHP
471 lines
16 KiB
PHP
<?php
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/**
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* WordPress Administration Revisions API
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*
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* @package WordPress
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* @subpackage Administration
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* @since 3.6.0
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*/
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/**
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* Get the revision UI diff.
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*
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* @since 3.6.0
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*
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* @param WP_Post|int $post The post object or post ID.
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* @param int $compare_from The revision ID to compare from.
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* @param int $compare_to The revision ID to come to.
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* @return array|false Associative array of a post's revisioned fields and their diffs.
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* Or, false on failure.
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*/
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function wp_get_revision_ui_diff( $post, $compare_from, $compare_to ) {
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$post = get_post( $post );
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if ( ! $post ) {
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return false;
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}
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if ( $compare_from ) {
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$compare_from = get_post( $compare_from );
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if ( ! $compare_from ) {
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return false;
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}
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} else {
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// If we're dealing with the first revision...
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$compare_from = false;
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}
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$compare_to = get_post( $compare_to );
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if ( ! $compare_to ) {
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return false;
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}
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// If comparing revisions, make sure we're dealing with the right post parent.
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// The parent post may be a 'revision' when revisions are disabled and we're looking at autosaves.
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if ( $compare_from && $compare_from->post_parent !== $post->ID && $compare_from->ID !== $post->ID ) {
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return false;
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}
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if ( $compare_to->post_parent !== $post->ID && $compare_to->ID !== $post->ID ) {
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return false;
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}
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if ( $compare_from && strtotime( $compare_from->post_date_gmt ) > strtotime( $compare_to->post_date_gmt ) ) {
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$temp = $compare_from;
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$compare_from = $compare_to;
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$compare_to = $temp;
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}
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// Add default title if title field is empty.
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if ( $compare_from && empty( $compare_from->post_title ) ) {
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$compare_from->post_title = __( '(no title)' );
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}
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if ( empty( $compare_to->post_title ) ) {
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$compare_to->post_title = __( '(no title)' );
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}
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$return = array();
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foreach ( _wp_post_revision_fields( $post ) as $field => $name ) {
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/**
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* Contextually filter a post revision field.
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*
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* The dynamic portion of the hook name, `$field`, corresponds to a name of a
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* field of the revision object.
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*
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* Possible hook names include:
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*
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* - `_wp_post_revision_field_post_title`
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* - `_wp_post_revision_field_post_content`
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* - `_wp_post_revision_field_post_excerpt`
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*
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* @since 3.6.0
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*
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* @param string $revision_field The current revision field to compare to or from.
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* @param string $field The current revision field.
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* @param WP_Post $compare_from The revision post object to compare to or from.
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* @param string $context The context of whether the current revision is the old
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* or the new one. Values are 'to' or 'from'.
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*/
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$content_from = $compare_from ? apply_filters( "_wp_post_revision_field_{$field}", $compare_from->$field, $field, $compare_from, 'from' ) : '';
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/** This filter is documented in wp-admin/includes/revision.php */
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$content_to = apply_filters( "_wp_post_revision_field_{$field}", $compare_to->$field, $field, $compare_to, 'to' );
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$args = array(
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'show_split_view' => true,
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'title_left' => __( 'Removed' ),
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'title_right' => __( 'Added' ),
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);
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/**
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* Filters revisions text diff options.
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*
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* Filters the options passed to wp_text_diff() when viewing a post revision.
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*
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* @since 4.1.0
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*
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* @param array $args {
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* Associative array of options to pass to wp_text_diff().
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*
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* @type bool $show_split_view True for split view (two columns), false for
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* un-split view (single column). Default true.
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* }
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* @param string $field The current revision field.
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* @param WP_Post $compare_from The revision post to compare from.
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* @param WP_Post $compare_to The revision post to compare to.
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*/
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$args = apply_filters( 'revision_text_diff_options', $args, $field, $compare_from, $compare_to );
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$diff = wp_text_diff( $content_from, $content_to, $args );
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if ( ! $diff && 'post_title' === $field ) {
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// It's a better user experience to still show the Title, even if it didn't change.
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// No, you didn't see this.
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$diff = '<table class="diff"><colgroup><col class="content diffsplit left"><col class="content diffsplit middle"><col class="content diffsplit right"></colgroup><tbody><tr>';
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// In split screen mode, show the title before/after side by side.
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if ( true === $args['show_split_view'] ) {
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$diff .= '<td>' . esc_html( $compare_from->post_title ) . '</td><td></td><td>' . esc_html( $compare_to->post_title ) . '</td>';
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} else {
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$diff .= '<td>' . esc_html( $compare_from->post_title ) . '</td>';
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// In single column mode, only show the title once if unchanged.
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if ( $compare_from->post_title !== $compare_to->post_title ) {
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$diff .= '</tr><tr><td>' . esc_html( $compare_to->post_title ) . '</td>';
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}
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}
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$diff .= '</tr></tbody>';
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$diff .= '</table>';
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}
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if ( $diff ) {
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$return[] = array(
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'id' => $field,
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'name' => $name,
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'diff' => $diff,
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);
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}
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}
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/**
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* Filters the fields displayed in the post revision diff UI.
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*
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* @since 4.1.0
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*
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* @param array[] $return Array of revision UI fields. Each item is an array of id, name, and diff.
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* @param WP_Post $compare_from The revision post to compare from.
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* @param WP_Post $compare_to The revision post to compare to.
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*/
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return apply_filters( 'wp_get_revision_ui_diff', $return, $compare_from, $compare_to );
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}
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/**
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* Prepare revisions for JavaScript.
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*
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* @since 3.6.0
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*
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* @param WP_Post|int $post The post object or post ID.
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* @param int $selected_revision_id The selected revision ID.
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* @param int $from Optional. The revision ID to compare from.
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* @return array An associative array of revision data and related settings.
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*/
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function wp_prepare_revisions_for_js( $post, $selected_revision_id, $from = null ) {
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$post = get_post( $post );
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$authors = array();
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$now_gmt = time();
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$revisions = wp_get_post_revisions(
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$post->ID,
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array(
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'order' => 'ASC',
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'check_enabled' => false,
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)
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);
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// If revisions are disabled, we only want autosaves and the current post.
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if ( ! wp_revisions_enabled( $post ) ) {
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foreach ( $revisions as $revision_id => $revision ) {
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if ( ! wp_is_post_autosave( $revision ) ) {
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unset( $revisions[ $revision_id ] );
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}
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}
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$revisions = array( $post->ID => $post ) + $revisions;
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}
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$show_avatars = get_option( 'show_avatars' );
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cache_users( wp_list_pluck( $revisions, 'post_author' ) );
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$can_restore = current_user_can( 'edit_post', $post->ID );
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$current_id = false;
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foreach ( $revisions as $revision ) {
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$modified = strtotime( $revision->post_modified );
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$modified_gmt = strtotime( $revision->post_modified_gmt . ' +0000' );
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if ( $can_restore ) {
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$restore_link = str_replace(
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'&',
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'&',
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wp_nonce_url(
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add_query_arg(
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array(
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'revision' => $revision->ID,
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'action' => 'restore',
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),
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admin_url( 'revision.php' )
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),
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"restore-post_{$revision->ID}"
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)
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);
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}
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if ( ! isset( $authors[ $revision->post_author ] ) ) {
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$authors[ $revision->post_author ] = array(
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'id' => (int) $revision->post_author,
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'avatar' => $show_avatars ? get_avatar( $revision->post_author, 32 ) : '',
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'name' => get_the_author_meta( 'display_name', $revision->post_author ),
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);
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}
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$autosave = (bool) wp_is_post_autosave( $revision );
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$current = ! $autosave && $revision->post_modified_gmt === $post->post_modified_gmt;
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if ( $current && ! empty( $current_id ) ) {
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// If multiple revisions have the same post_modified_gmt, highest ID is current.
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if ( $current_id < $revision->ID ) {
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$revisions[ $current_id ]['current'] = false;
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$current_id = $revision->ID;
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} else {
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$current = false;
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}
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} elseif ( $current ) {
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$current_id = $revision->ID;
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}
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$revisions_data = array(
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'id' => $revision->ID,
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'title' => get_the_title( $post->ID ),
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'author' => $authors[ $revision->post_author ],
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'date' => date_i18n( __( 'M j, Y @ H:i' ), $modified ),
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'dateShort' => date_i18n( _x( 'j M @ H:i', 'revision date short format' ), $modified ),
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/* translators: %s: Human-readable time difference. */
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'timeAgo' => sprintf( __( '%s ago' ), human_time_diff( $modified_gmt, $now_gmt ) ),
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'autosave' => $autosave,
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'current' => $current,
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'restoreUrl' => $can_restore ? $restore_link : false,
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);
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/**
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* Filters the array of revisions used on the revisions screen.
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*
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* @since 4.4.0
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*
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* @param array $revisions_data {
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* The bootstrapped data for the revisions screen.
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*
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* @type int $id Revision ID.
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* @type string $title Title for the revision's parent WP_Post object.
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* @type int $author Revision post author ID.
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* @type string $date Date the revision was modified.
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* @type string $dateShort Short-form version of the date the revision was modified.
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* @type string $timeAgo GMT-aware amount of time ago the revision was modified.
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* @type bool $autosave Whether the revision is an autosave.
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* @type bool $current Whether the revision is both not an autosave and the post
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* modified date matches the revision modified date (GMT-aware).
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* @type bool|false $restoreUrl URL if the revision can be restored, false otherwise.
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* }
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* @param WP_Post $revision The revision's WP_Post object.
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* @param WP_Post $post The revision's parent WP_Post object.
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*/
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$revisions[ $revision->ID ] = apply_filters( 'wp_prepare_revision_for_js', $revisions_data, $revision, $post );
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}
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/**
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* If we only have one revision, the initial revision is missing; This happens
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* when we have an autsosave and the user has clicked 'View the Autosave'
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*/
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if ( 1 === count( $revisions ) ) {
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$revisions[ $post->ID ] = array(
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'id' => $post->ID,
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'title' => get_the_title( $post->ID ),
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'author' => $authors[ $revision->post_author ],
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'date' => date_i18n( __( 'M j, Y @ H:i' ), strtotime( $post->post_modified ) ),
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'dateShort' => date_i18n( _x( 'j M @ H:i', 'revision date short format' ), strtotime( $post->post_modified ) ),
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/* translators: %s: Human-readable time difference. */
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'timeAgo' => sprintf( __( '%s ago' ), human_time_diff( strtotime( $post->post_modified_gmt ), $now_gmt ) ),
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'autosave' => false,
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'current' => true,
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'restoreUrl' => false,
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);
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$current_id = $post->ID;
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}
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/*
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* If a post has been saved since the latest revision (no revisioned fields
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* were changed), we may not have a "current" revision. Mark the latest
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* revision as "current".
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*/
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if ( empty( $current_id ) ) {
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if ( $revisions[ $revision->ID ]['autosave'] ) {
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$revision = end( $revisions );
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while ( $revision['autosave'] ) {
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$revision = prev( $revisions );
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}
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$current_id = $revision['id'];
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} else {
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$current_id = $revision->ID;
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}
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$revisions[ $current_id ]['current'] = true;
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}
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// Now, grab the initial diff.
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$compare_two_mode = is_numeric( $from );
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if ( ! $compare_two_mode ) {
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$found = array_search( $selected_revision_id, array_keys( $revisions ), true );
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if ( $found ) {
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$from = array_keys( array_slice( $revisions, $found - 1, 1, true ) );
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$from = reset( $from );
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} else {
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$from = 0;
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}
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}
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$from = absint( $from );
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$diffs = array(
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array(
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'id' => $from . ':' . $selected_revision_id,
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'fields' => wp_get_revision_ui_diff( $post->ID, $from, $selected_revision_id ),
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),
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);
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return array(
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'postId' => $post->ID,
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'nonce' => wp_create_nonce( 'revisions-ajax-nonce' ),
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'revisionData' => array_values( $revisions ),
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'to' => $selected_revision_id,
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'from' => $from,
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'diffData' => $diffs,
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'baseUrl' => parse_url( admin_url( 'revision.php' ), PHP_URL_PATH ),
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'compareTwoMode' => absint( $compare_two_mode ), // Apparently booleans are not allowed.
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'revisionIds' => array_keys( $revisions ),
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);
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}
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/**
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* Print JavaScript templates required for the revisions experience.
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*
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* @since 4.1.0
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*
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* @global WP_Post $post Global post object.
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*/
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function wp_print_revision_templates() {
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global $post;
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?><script id="tmpl-revisions-frame" type="text/html">
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<div class="revisions-control-frame"></div>
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<div class="revisions-diff-frame"></div>
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</script>
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<script id="tmpl-revisions-buttons" type="text/html">
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<div class="revisions-previous">
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<input class="button" type="button" value="<?php echo esc_attr_x( 'Previous', 'Button label for a previous revision' ); ?>" />
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</div>
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<div class="revisions-next">
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<input class="button" type="button" value="<?php echo esc_attr_x( 'Next', 'Button label for a next revision' ); ?>" />
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</div>
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</script>
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<script id="tmpl-revisions-checkbox" type="text/html">
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<div class="revision-toggle-compare-mode">
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<label>
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<input type="checkbox" class="compare-two-revisions"
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<#
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if ( 'undefined' !== typeof data && data.model.attributes.compareTwoMode ) {
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#> checked="checked"<#
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}
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#>
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/>
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<?php esc_html_e( 'Compare any two revisions' ); ?>
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</label>
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</div>
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</script>
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<script id="tmpl-revisions-meta" type="text/html">
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<# if ( ! _.isUndefined( data.attributes ) ) { #>
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<div class="diff-title">
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<# if ( 'from' === data.type ) { #>
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<strong><?php _ex( 'From:', 'Followed by post revision info' ); ?></strong>
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<# } else if ( 'to' === data.type ) { #>
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<strong><?php _ex( 'To:', 'Followed by post revision info' ); ?></strong>
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<# } #>
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<div class="author-card<# if ( data.attributes.autosave ) { #> autosave<# } #>">
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{{{ data.attributes.author.avatar }}}
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<div class="author-info">
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<# if ( data.attributes.autosave ) { #>
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<span class="byline">
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<?php
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printf(
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/* translators: %s: User's display name. */
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__( 'Autosave by %s' ),
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'<span class="author-name">{{ data.attributes.author.name }}</span>'
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);
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?>
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</span>
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<# } else if ( data.attributes.current ) { #>
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<span class="byline">
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<?php
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printf(
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/* translators: %s: User's display name. */
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__( 'Current Revision by %s' ),
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'<span class="author-name">{{ data.attributes.author.name }}</span>'
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);
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?>
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</span>
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<# } else { #>
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<span class="byline">
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<?php
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printf(
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/* translators: %s: User's display name. */
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__( 'Revision by %s' ),
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'<span class="author-name">{{ data.attributes.author.name }}</span>'
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);
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?>
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</span>
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<# } #>
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<span class="time-ago">{{ data.attributes.timeAgo }}</span>
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<span class="date">({{ data.attributes.dateShort }})</span>
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</div>
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<# if ( 'to' === data.type && data.attributes.restoreUrl ) { #>
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<input <?php if ( wp_check_post_lock( $post->ID ) ) { ?>
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disabled="disabled"
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<?php } else { ?>
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<# if ( data.attributes.current ) { #>
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disabled="disabled"
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<# } #>
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<?php } ?>
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<# if ( data.attributes.autosave ) { #>
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type="button" class="restore-revision button button-primary" value="<?php esc_attr_e( 'Restore This Autosave' ); ?>" />
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<# } else { #>
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type="button" class="restore-revision button button-primary" value="<?php esc_attr_e( 'Restore This Revision' ); ?>" />
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<# } #>
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<# } #>
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</div>
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|
<# if ( 'tooltip' === data.type ) { #>
|
|
<div class="revisions-tooltip-arrow"><span></span></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
|
|
}
|