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General: add block theme previews.

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Adds a preview link to block themes in the themes screen, opening the previews in the site editor.

Props onemaggie, andraganescu, audrasjb, flixos90, peterwilsoncc, spacedmonkey, scruffian.
Fixes #58561.


git-svn-id: https://develop.svn.wordpress.org/trunk@56059 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Isabel Brison
2023-06-27 09:34:34 +00:00
parent 8b9d8d8a9f
commit 1ef856c8d6
5 changed files with 84 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/wp-admin/includes/admin-filters.php
View File

@@ -168,3 +168,10 @@ add_action( 'post_updated', array( 'WP_Privacy_Policy_Content', '_policy_page_up
// Append '(Draft)' to draft page titles in the privacy page dropdown.
add_filter( 'list_pages', '_wp_privacy_settings_filter_draft_page_titles', 10, 2 );
// Attaches filters to enable theme previews in the Site Editor.
if ( ! empty( $_GET['wp_theme_preview'] ) ) {
add_filter( 'stylesheet', 'wp_get_theme_preview_path' );
add_filter( 'template', 'wp_get_theme_preview_path' );
add_action( 'init', 'wp_attach_theme_preview_middleware' );
}

1
src/wp-admin/includes/admin.php
View File

@@ -71,6 +71,7 @@ require_once ABSPATH . 'wp-admin/includes/list-table.php';
/** WordPress Theme Administration API */
require_once ABSPATH . 'wp-admin/includes/theme.php';
require_once ABSPATH . 'wp-admin/includes/theme-previews.php';
/** WordPress Privacy Functions */
require_once ABSPATH . 'wp-admin/includes/privacy-tools.php';

56
src/wp-admin/includes/theme-previews.php Normal file
View File

@@ -0,0 +1,56 @@
<?php
/**
* Theme previews using the Site Editor for block themes.
*
* @package WordPress
*/
/**
* Filters the blog option to return the path for the previewed theme.
*
* @since 6.3.0
*
* @param string $current_stylesheet The current theme's stylesheet or template path.
* @return string The previewed theme's stylesheet or template path.
*/
function wp_get_theme_preview_path( $current_stylesheet = null ) {
if ( ! current_user_can( 'switch_themes' ) ) {
return $current_stylesheet;
}
$preview_stylesheet = ! empty( $_GET['wp_theme_preview'] ) ? sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ) : null;
$wp_theme = wp_get_theme( $preview_stylesheet );
if ( ! is_wp_error( $wp_theme->errors() ) ) {
if ( current_filter() === 'template' ) {
$theme_path = $wp_theme->get_template();
} else {
$theme_path = $wp_theme->get_stylesheet();
}
return sanitize_text_field( $theme_path );
}
return $current_stylesheet;
}
/**
* Adds a middleware to `apiFetch` to set the theme for the preview.
* This adds a `wp_theme_preview` URL parameter to API requests from the Site Editor, so they also respond as if the theme is set to the value of the parameter.
*
* @since 6.3.0
*/
function wp_attach_theme_preview_middleware() {
// Don't allow non-admins to preview themes.
if ( ! current_user_can( 'switch_themes' ) ) {
return;
}
wp_add_inline_script(
'wp-api-fetch',
sprintf(
'wp.apiFetch.use( wp.apiFetch.createThemePreviewMiddleware( %s ) );',
wp_json_encode( sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ) )
),
'after'
);
}

21
src/wp-admin/includes/theme.php
View File

@@ -711,16 +711,21 @@ function wp_prepare_themes_for_js( $themes = null ) {
$is_block_theme = $theme->is_block_theme();
if ( $is_block_theme && $can_edit_theme_options ) {
$customize_action = esc_url( admin_url( 'site-editor.php' ) );
$customize_action = admin_url( 'site-editor.php' );
if ( $current_theme !== $slug ) {
$customize_action = add_query_arg( 'wp_theme_preview', $slug, $customize_action );
}
} elseif ( ! $is_block_theme && $can_customize && $can_edit_theme_options ) {
$customize_action = esc_url(
add_query_arg(
array(
'return' => urlencode( sanitize_url( remove_query_arg( wp_removable_query_args(), wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) ),
),
wp_customize_url( $slug )
)
$customize_action = wp_customize_url( $slug );
}
if ( null !== $customize_action ) {
$customize_action = add_query_arg(
array(
'return' => urlencode( sanitize_url( remove_query_arg( wp_removable_query_args(), wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) ),
),
$customize_action
);
$customize_action = esc_url( $customize_action );
}
$update_requires_wp = isset( $updates[ $slug ]['requires'] ) ? $updates[ $slug ]['requires'] : null;