first commit
This commit is contained in:
Manish
297
wp-includes/class-wp-locale-switcher.php
Normal file
297
wp-includes/class-wp-locale-switcher.php
Normal file
@ -0,0 +1,297 @@
|
||||
<?php
|
||||
/**
|
||||
* Locale API: WP_Locale_Switcher class
|
||||
*
|
||||
* @package WordPress
|
||||
* @subpackage i18n
|
||||
* @since 4.7.0
|
||||
*/
|
||||
|
||||
/**
|
||||
* Core class used for switching locales.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*/
|
||||
#[AllowDynamicProperties]
|
||||
class WP_Locale_Switcher {
|
||||
/**
|
||||
* Locale switching stack.
|
||||
*
|
||||
* @since 6.2.0
|
||||
* @var array
|
||||
*/
|
||||
private $stack = array();
|
||||
|
||||
/**
|
||||
* Original locale.
|
||||
*
|
||||
* @since 4.7.0
|
||||
* @var string
|
||||
*/
|
||||
private $original_locale;
|
||||
|
||||
/**
|
||||
* Holds all available languages.
|
||||
*
|
||||
* @since 4.7.0
|
||||
* @var string[] An array of language codes (file names without the .mo extension).
|
||||
*/
|
||||
private $available_languages;
|
||||
|
||||
/**
|
||||
* Constructor.
|
||||
*
|
||||
* Stores the original locale as well as a list of all available languages.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*/
|
||||
public function __construct() {
|
||||
$this->original_locale = determine_locale();
|
||||
$this->available_languages = array_merge( array( 'en_US' ), get_available_languages() );
|
||||
}
|
||||
|
||||
/**
|
||||
* Initializes the locale switcher.
|
||||
*
|
||||
* Hooks into the {@see 'locale'} and {@see 'determine_locale'} filters
|
||||
* to change the locale on the fly.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*/
|
||||
public function init() {
|
||||
add_filter( 'locale', array( $this, 'filter_locale' ) );
|
||||
add_filter( 'determine_locale', array( $this, 'filter_locale' ) );
|
||||
}
|
||||
|
||||
/**
|
||||
* Switches the translations according to the given locale.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @param string $locale The locale to switch to.
|
||||
* @param int|false $user_id Optional. User ID as context. Default false.
|
||||
* @return bool True on success, false on failure.
|
||||
*/
|
||||
public function switch_to_locale( $locale, $user_id = false ) {
|
||||
$current_locale = determine_locale();
|
||||
if ( $current_locale === $locale ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if ( ! in_array( $locale, $this->available_languages, true ) ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$this->stack[] = array( $locale, $user_id );
|
||||
|
||||
$this->change_locale( $locale );
|
||||
|
||||
/**
|
||||
* Fires when the locale is switched.
|
||||
*
|
||||
* @since 4.7.0
|
||||
* @since 6.2.0 The `$user_id` parameter was added.
|
||||
*
|
||||
* @param string $locale The new locale.
|
||||
* @param false|int $user_id User ID for context if available.
|
||||
*/
|
||||
do_action( 'switch_locale', $locale, $user_id );
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Switches the translations according to the given user's locale.
|
||||
*
|
||||
* @since 6.2.0
|
||||
*
|
||||
* @param int $user_id User ID.
|
||||
* @return bool True on success, false on failure.
|
||||
*/
|
||||
public function switch_to_user_locale( $user_id ) {
|
||||
$locale = get_user_locale( $user_id );
|
||||
return $this->switch_to_locale( $locale, $user_id );
|
||||
}
|
||||
|
||||
/**
|
||||
* Restores the translations according to the previous locale.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @return string|false Locale on success, false on failure.
|
||||
*/
|
||||
public function restore_previous_locale() {
|
||||
$previous_locale = array_pop( $this->stack );
|
||||
|
||||
if ( null === $previous_locale ) {
|
||||
// The stack is empty, bail.
|
||||
return false;
|
||||
}
|
||||
|
||||
$entry = end( $this->stack );
|
||||
$locale = is_array( $entry ) ? $entry[0] : false;
|
||||
|
||||
if ( ! $locale ) {
|
||||
// There's nothing left in the stack: go back to the original locale.
|
||||
$locale = $this->original_locale;
|
||||
}
|
||||
|
||||
$this->change_locale( $locale );
|
||||
|
||||
/**
|
||||
* Fires when the locale is restored to the previous one.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @param string $locale The new locale.
|
||||
* @param string $previous_locale The previous locale.
|
||||
*/
|
||||
do_action( 'restore_previous_locale', $locale, $previous_locale[0] );
|
||||
|
||||
return $locale;
|
||||
}
|
||||
|
||||
/**
|
||||
* Restores the translations according to the original locale.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @return string|false Locale on success, false on failure.
|
||||
*/
|
||||
public function restore_current_locale() {
|
||||
if ( empty( $this->stack ) ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$this->stack = array( array( $this->original_locale, false ) );
|
||||
|
||||
return $this->restore_previous_locale();
|
||||
}
|
||||
|
||||
/**
|
||||
* Whether switch_to_locale() is in effect.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @return bool True if the locale has been switched, false otherwise.
|
||||
*/
|
||||
public function is_switched() {
|
||||
return ! empty( $this->stack );
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the locale currently switched to.
|
||||
*
|
||||
* @since 6.2.0
|
||||
*
|
||||
* @return string|false Locale if the locale has been switched, false otherwise.
|
||||
*/
|
||||
public function get_switched_locale() {
|
||||
$entry = end( $this->stack );
|
||||
|
||||
if ( $entry ) {
|
||||
return $entry[0];
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the user ID related to the currently switched locale.
|
||||
*
|
||||
* @since 6.2.0
|
||||
*
|
||||
* @return int|false User ID if set and if the locale has been switched, false otherwise.
|
||||
*/
|
||||
public function get_switched_user_id() {
|
||||
$entry = end( $this->stack );
|
||||
|
||||
if ( $entry ) {
|
||||
return $entry[1];
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Filters the locale of the WordPress installation.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @param string $locale The locale of the WordPress installation.
|
||||
* @return string The locale currently being switched to.
|
||||
*/
|
||||
public function filter_locale( $locale ) {
|
||||
$switched_locale = $this->get_switched_locale();
|
||||
|
||||
if ( $switched_locale ) {
|
||||
return $switched_locale;
|
||||
}
|
||||
|
||||
return $locale;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load translations for a given locale.
|
||||
*
|
||||
* When switching to a locale, translations for this locale must be loaded from scratch.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @global Mo[] $l10n An array of all currently loaded text domains.
|
||||
*
|
||||
* @param string $locale The locale to load translations for.
|
||||
*/
|
||||
private function load_translations( $locale ) {
|
||||
global $l10n;
|
||||
|
||||
$domains = $l10n ? array_keys( $l10n ) : array();
|
||||
|
||||
load_default_textdomain( $locale );
|
||||
|
||||
foreach ( $domains as $domain ) {
|
||||
// The default text domain is handled by `load_default_textdomain()`.
|
||||
if ( 'default' === $domain ) {
|
||||
continue;
|
||||
}
|
||||
|
||||
/*
|
||||
* Unload current text domain but allow them to be reloaded
|
||||
* after switching back or to another locale.
|
||||
*/
|
||||
unload_textdomain( $domain, true );
|
||||
get_translations_for_domain( $domain );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Changes the site's locale to the given one.
|
||||
*
|
||||
* Loads the translations, changes the global `$wp_locale` object and updates
|
||||
* all post type labels.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @global WP_Locale $wp_locale WordPress date and time locale object.
|
||||
*
|
||||
* @param string $locale The locale to change to.
|
||||
*/
|
||||
private function change_locale( $locale ) {
|
||||
global $wp_locale;
|
||||
|
||||
$this->load_translations( $locale );
|
||||
|
||||
$wp_locale = new WP_Locale();
|
||||
|
||||
WP_Translation_Controller::get_instance()->set_locale( $locale );
|
||||
|
||||
/**
|
||||
* Fires when the locale is switched to or restored.
|
||||
*
|
||||
* @since 4.7.0
|
||||
*
|
||||
* @param string $locale The new locale.
|
||||
*/
|
||||
do_action( 'change_locale', $locale );
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user