links_model = &$polylang->links_model;
$this->curlang = &$polylang->curlang;
// Adds the language information in the search form
// Low priority in case the search form is created using the same filter as described in http://codex.wordpress.org/Function_Reference/get_search_form
add_filter( 'get_search_form', array( $this, 'get_search_form' ), 99 );
// Adds the language information in the search block.
add_filter( 'render_block_core/search', array( $this, 'get_search_form' ) );
// Adds the language information in admin bar search form
add_action( 'add_admin_bar_menus', array( $this, 'add_admin_bar_menus' ) );
// Adds javascript at the end of the document
// Was used for WP < 3.6. kept just in case
if ( defined( 'PLL_SEARCH_FORM_JS' ) && PLL_SEARCH_FORM_JS ) {
add_action( 'wp_footer', array( $this, 'wp_print_footer_scripts' ) );
}
}
/**
* Adds the language information in the search form.
*
* Does not work if searchform.php ( prior to WP 3.6 ) is used or if the search form is hardcoded in another template file
*
* @since 0.1
*
* @param string $form The search form HTML.
* @return string Modified search form.
*/
public function get_search_form( $form ) {
if ( empty( $form ) || empty( $this->curlang ) ) {
return $form;
}
if ( $this->links_model->using_permalinks ) {
// Take care to modify only the url in the ', '', $form );
}
return $form;
}
/**
* Adds the language information in the admin bar search form.
*
* @since 1.2
*
* @return void
*/
public function add_admin_bar_menus() {
remove_action( 'admin_bar_menu', 'wp_admin_bar_search_menu', 9999 );
add_action( 'admin_bar_menu', array( $this, 'admin_bar_search_menu' ), 9999 );
}
/**
* Rewrites the admin bar search form to pass our get_search_form filter. See #21342.
* Code last checked: WP 5.4.1.
*
* @since 0.9
*
* @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance, passed by reference.
* @return void
*/
public function admin_bar_search_menu( $wp_admin_bar ) {
$form = '';
$wp_admin_bar->add_node(
array(
'parent' => 'top-secondary',
'id' => 'search',
'title' => $this->get_search_form( $form ), // Pass the get_search_form filter.
'meta' => array(
'class' => 'admin-bar-search',
'tabindex' => -1,
),
)
);
}
/**
* Allows modifying the search form if it does not pass get_search_form.
*
* @since 0.1
*
* @return void
*/
public function wp_print_footer_scripts() {
/*
* Don't use directly e[0] just in case there is somewhere else an element named 's'
* Check before if the hidden input has not already been introduced by get_search_form ( FIXME: is there a way to improve this ) ?
* Thanks to AndyDeGroo for improving the code for compatibility with old browsers
* http://wordpress.org/support/topic/development-of-polylang-version-08?replies=6#post-2645559
*/
$lang = esc_js( $this->curlang->slug );
$js = "e = document.getElementsByName( 's' );
for ( i = 0; i < e.length; i++ ) {
if ( e[i].tagName.toUpperCase() == 'INPUT' ) {
s = e[i].parentNode.parentNode.children;
l = 0;
for ( j = 0; j < s.length; j++ ) {
if ( s[j].name == 'lang' ) {
l = 1;
}
}
if ( l == 0 ) {
var ih = document.createElement( 'input' );
ih.type = 'hidden';
ih.name = 'lang';
ih.value = '{$lang}';
e[i].parentNode.appendChild( ih );
}
}
}";
$type_attr = current_theme_supports( 'html5', 'script' ) ? '' : ' type="text/javascript"';
if ( $type_attr ) {
$js = "/* */";
}
echo "\n{$js}\n\n"; // phpcs:ignore WordPress.Security.EscapeOutput
}
}