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cf50fd40f5
Removes a period from an inline comment of `wp_block_theme_activate_nonce` that broke a link in the comment. Props stevenlinx, mukesh27. Fixes #60034. Built from https://develop.svn.wordpress.org/trunk@57171 git-svn-id: http://core.svn.wordpress.org/trunk@56682 1a063a9b-81f0-0310-95a4-ce76da25c4cd
94 lines
2.8 KiB
PHP
94 lines
2.8 KiB
PHP
<?php
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/**
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* Theme previews using the Site Editor for block themes.
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*
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* @package WordPress
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*/
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/**
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* Filters the blog option to return the path for the previewed theme.
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*
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* @since 6.3.0
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*
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* @param string $current_stylesheet The current theme's stylesheet or template path.
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* @return string The previewed theme's stylesheet or template path.
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*/
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function wp_get_theme_preview_path( $current_stylesheet = null ) {
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if ( ! current_user_can( 'switch_themes' ) ) {
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return $current_stylesheet;
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}
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$preview_stylesheet = ! empty( $_GET['wp_theme_preview'] ) ? sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ) : null;
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$wp_theme = wp_get_theme( $preview_stylesheet );
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if ( ! is_wp_error( $wp_theme->errors() ) ) {
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if ( current_filter() === 'template' ) {
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$theme_path = $wp_theme->get_template();
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} else {
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$theme_path = $wp_theme->get_stylesheet();
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}
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return sanitize_text_field( $theme_path );
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}
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return $current_stylesheet;
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}
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/**
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* Adds a middleware to `apiFetch` to set the theme for the preview.
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* 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.
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*
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* @since 6.3.0
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*/
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function wp_attach_theme_preview_middleware() {
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// Don't allow non-admins to preview themes.
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if ( ! current_user_can( 'switch_themes' ) ) {
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return;
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}
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wp_add_inline_script(
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'wp-api-fetch',
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sprintf(
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'wp.apiFetch.use( wp.apiFetch.createThemePreviewMiddleware( %s ) );',
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wp_json_encode( sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ) )
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),
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'after'
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);
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}
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/**
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* Set a JavaScript constant for theme activation.
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*
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* Sets the JavaScript global WP_BLOCK_THEME_ACTIVATE_NONCE containing the nonce
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* required to activate a theme. For use within the site editor.
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*
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* @see https://github.com/WordPress/gutenberg/pull/41836
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*
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* @since 6.3.0
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* @access private
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*/
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function wp_block_theme_activate_nonce() {
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$nonce_handle = 'switch-theme_' . wp_get_theme_preview_path();
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?>
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<script type="text/javascript">
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window.WP_BLOCK_THEME_ACTIVATE_NONCE = <?php echo wp_json_encode( wp_create_nonce( $nonce_handle ) ); ?>;
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</script>
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<?php
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}
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/**
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* Add filters and actions to enable Block Theme Previews in the Site Editor.
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*
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* The filters and actions should be added after `pluggable.php` is included as they may
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* trigger code that uses `current_user_can()` which requires functionality from `pluggable.php`.
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*
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* @since 6.3.2
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*/
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function wp_initialize_theme_preview_hooks() {
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if ( ! empty( $_GET['wp_theme_preview'] ) ) {
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add_filter( 'stylesheet', 'wp_get_theme_preview_path' );
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add_filter( 'template', 'wp_get_theme_preview_path' );
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add_action( 'init', 'wp_attach_theme_preview_middleware' );
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add_action( 'admin_head', 'wp_block_theme_activate_nonce' );
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}
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}
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