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<?php
/**
* Add new tab (AMP) in theme install screen in WordPress admin.
*
* @package Ampproject\Ampwp
*/
namespace AmpProject\AmpWP\Admin;
use AmpProject\AmpWP\Infrastructure\Conditional;
use AmpProject\AmpWP\Infrastructure\Delayed;
use AmpProject\AmpWP\Infrastructure\HasRequirements;
use AmpProject\AmpWP\Infrastructure\Registerable;
use AmpProject\AmpWP\Infrastructure\Service;
use AmpProject\AmpWP\Services;
use WP_Screen;
use stdClass;
/**
* Add new tab (AMP) in theme install screen in WordPress admin.
*
* @since 2.2
* @internal
*/
class AmpThemes implements Service, HasRequirements, Registerable, Conditional, Delayed {
/**
* Slug for amp-compatible.
*
* @var string
*/
const AMP_COMPATIBLE = 'amp-compatible';
/**
* Assets handle.
*
* @var string
*/
const ASSET_HANDLE = 'amp-theme-install';
/**
* List of AMP themes.
*
* @var array
*/
protected $themes = [];
/**
* Get the action to use for registering the service.
*
* @return string Registration action to use.
*/
public static function get_registration_action() {
return 'admin_init';
}
/**
* Get the list of service IDs required for this service to be registered.
*
* @return string[] List of required services.
*/
public static function get_requirements() {
return [ 'dependency_support' ];
}
/**
* Check whether the conditional object is currently needed.
*
* @return bool Whether the conditional object is needed.
*/
public static function is_needed() {
if ( ! Services::get( 'dependency_support' )->has_support() ) {
return false;
}
/**
* Filters whether to show AMP compatible ecosystem in the admin.
*
* @since 2.2
*
* @param bool $shown Whether to show AMP-compatible themes and plugins in the admin.
* @param string $type The type of ecosystem component being shown. May be either 'themes' or 'plugins'.
*/
return is_admin() && apply_filters( 'amp_compatible_ecosystem_shown', true, 'themes' );
}
/**
* Get list of AMP themes.
*
* @return array List of AMP themes.
*/
public function get_themes() {
if ( count( $this->themes ) === 0 ) {
$this->themes = array_map(
static function ( $theme ) {
return self::normalize_theme_data( $theme );
},
require __DIR__ . '/../../includes/ecosystem-data/themes.php'
);
usort(
$this->themes,
static function ( $a, $b ) {
return strcasecmp( $a['name'], $b['name'] );
}
);
}
return $this->themes;
}
/**
* Normalize theme data.
*
* @param array $theme Theme data.
*
* @return array Normalized theme data.
*/
public static function normalize_theme_data( $theme = [] ) {
$default = [
'name' => '',
'slug' => '',
'version' => '',
'preview_url' => '',
'author' => [
'user_nicename' => '',
'profile' => '',
'avatar' => '',
'display_name' => '',
'author' => '',
'author_url' => '',
],
'screenshot_url' => '',
'rating' => 0,
'num_ratings' => 0,
'homepage' => '',
'description' => '',
'requires' => '',
'requires_php' => '',
];
$theme['author'] = ( ! empty( $theme['author'] ) && is_array( $theme['author'] ) ) ? $theme['author'] : [];
$theme['author'] = wp_parse_args( $theme['author'], $default['author'] );
return wp_parse_args( $theme, $default );
}
/**
* Adds hooks.
*
* @return void
*/
public function register() {
add_filter( 'themes_api', [ $this, 'filter_themes_api' ], 10, 3 );
add_filter( 'theme_row_meta', [ $this, 'filter_theme_row_meta' ], 10, 2 );
add_action( 'current_screen', [ $this, 'register_hooks' ] );
}
/**
* Register all hooks.
*
* @return void
*/
public function register_hooks() {
$screen = get_current_screen();
if (
$screen instanceof WP_Screen
&&
in_array( $screen->id, [ 'themes', 'theme-install', 'theme-install-network' ], true )
) {
add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_scripts' ] );
}
}
/**
* Enqueue scripts and style for install theme screen.
*
* @return void
*/
public function enqueue_scripts() {
$asset_file = AMP__DIR__ . '/assets/js/' . self::ASSET_HANDLE . '.asset.php';
$asset = require $asset_file;
$dependencies = $asset['dependencies'];
$version = $asset['version'];
wp_enqueue_script(
self::ASSET_HANDLE,
amp_get_asset_url( 'js/' . self::ASSET_HANDLE . '.js' ),
$dependencies,
$version,
true
);
wp_enqueue_style(
'amp-admin',
amp_get_asset_url( 'css/amp-admin.css' ),
[],
AMP__VERSION
);
$none_wporg = [];
$slugs = [];
foreach ( $this->get_themes() as $theme ) {
$slugs[] = $theme['slug'];
if ( ! isset( $theme['wporg'] ) || true !== $theme['wporg'] ) {
$none_wporg[] = $theme['slug'];
}
}
$js_data = [
'AMP_COMPATIBLE' => self::AMP_COMPATIBLE,
'AMP_THEMES' => $slugs,
'NONE_WPORG_THEMES' => $none_wporg,
];
wp_add_inline_script(
self::ASSET_HANDLE,
sprintf(
'var ampThemes = %s;',
wp_json_encode( $js_data )
),
'before'
);
}
/**
* Filter the response of API call to wordpress.org for theme data.
*
* @param false|object|array $override Whether to override the WordPress.org Themes API. Default false.
* @param string $action API Action.
* @param array $args Args for themes list.
*
* @return object List of AMP compatible themes.
*/
public function filter_themes_api( $override, $action, $args ) {
$args = (array) $args;
if ( ! isset( $args['browse'] ) || self::AMP_COMPATIBLE !== $args['browse'] || 'query_themes' !== $action ) {
return $override;
}
$response = new stdClass();
$response->themes = [];
$per_page = max( 36, isset( $args['per_page'] ) ? (int) $args['per_page'] : 0 );
$page = max( 1, isset( $args['page'] ) ? (int) $args['page'] : 0 );
$themes = $this->get_themes();
$themes_count = count( $themes );
$themes_chunks = array_chunk( $themes, $per_page );
$themes_chunk = ( ! empty( $themes_chunks[ $page - 1 ] ) && is_array( $themes_chunks[ $page - 1 ] ) ) ? $themes_chunks[ $page - 1 ] : [];
foreach ( $themes_chunk as $theme ) {
$response->themes[] = (object) $theme;
}
$response->info = [
'page' => $page,
'pages' => count( $themes_chunks ),
'results' => $themes_count,
];
return $response;
}
/**
* Add theme metadata for AMP compatibility in theme listing page.
*
* @param string[] $theme_meta An array of the theme's metadata.
* @param string $stylesheet Directory name of the theme.
*
* @return string[] An array of the theme's metadata.
*/
public function filter_theme_row_meta( $theme_meta, $stylesheet ) {
$amp_themes = wp_list_pluck( $this->get_themes(), 'slug' );
if ( in_array( $stylesheet, $amp_themes, true ) ) {
$theme_meta[] = esc_html__( 'AMP Compatible', 'amp' );
}
return $theme_meta;
}
}