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<?php defined( 'ABSPATH' ) OR die( 'This script cannot be accessed directly.' );
/**
* Adding custom sidebars
*/
class US_Widget_Areas {
public $widget_areas = array();
public $option_name = 'us_widget_areas';
public function __construct() {
$alloptions = wp_load_alloptions();
if ( ! empty( $alloptions[ $this->option_name ] ) ) {
$this->widget_areas = maybe_unserialize( $alloptions[ $this->option_name ] );
}
add_action( 'load-widgets.php', array( &$this, 'load_widgets' ), 5 );
add_action( 'widgets_init', array( &$this, 'register_widget_areas' ), 100 );
add_action( 'wp_ajax_us_delete_custom_widget_area', array( &$this, 'delete_widget_area' ), 100 );
}
public function load_widgets() {
add_action( 'admin_print_scripts', array( &$this, 'template_add_widget_area' ) );
add_action( 'load-widgets.php', array( &$this, 'add_widget_area' ), 100 );
wp_enqueue_script( 'us_widget_areas', US_CORE_URI . '/admin/js/widget_areas.js' );
}
public function template_add_widget_area() {
$nonce = wp_create_nonce( 'us_delete_widget_area_nonce' );
$nonce = '<input type="hidden" name="us_delete_widget_area_nonce" value="' . $nonce . '" />';
?>
<div id="us_add_widget_area" style="display: none;">
<form method="POST" class="us-custom-area-form widgets-holder-wrap">
<input type="text" value="" placeholder="<?php _e( 'Sidebar Name', 'us' ) ?>" name="us_widget_area" />
<input class="button button-primary" type="submit" value="<?php _e( 'Add Sidebar', 'us' ) ?>" />
<?php echo $nonce; ?>
</form>
<span id="us_confirm_widget_area_deletion" style="display: none;"><?php _e( 'Do you really want to delete this sidebar?', 'us' ); ?></span>
</div>
<?php
}
public function add_widget_area() {
if ( ! empty( $_POST['us_widget_area'] ) ) {
$this->widget_areas = get_option( $this->option_name );
$name = $this->get_name( trim( $_POST['us_widget_area'] ) );
$id = $this->name_to_id( $name );
if ( empty( $this->widget_areas ) ) {
$this->widget_areas = array( $id => $name );
} else {
$this->widget_areas = array_merge( $this->widget_areas, array( $id => $name ) );
}
update_option( $this->option_name, $this->widget_areas );
wp_redirect( admin_url( 'widgets.php' ) );
die();
}
}
public function delete_widget_area() {
check_ajax_referer( 'us_delete_widget_area_nonce' );
if ( ! empty( $_POST['name'] ) ) {
$name = stripslashes( $_POST['name'] );
$this->widget_areas = get_option( $this->option_name );
if ( ( $id = array_search( $name, $this->widget_areas ) ) !== FALSE ) {
unset( $this->widget_areas[$id] );
update_option( $this->option_name, $this->widget_areas );
echo "success";
}
}
die();
}
public function get_name( $name ) {
if ( empty( $GLOBALS['wp_registered_sidebars'] ) ) {
return $name;
}
$taken = array();
foreach ( $GLOBALS['wp_registered_sidebars'] as $widget_area ) {
$taken[] = $widget_area['name'];
}
if ( empty( $this->widget_areas ) ) {
$this->widget_areas = array();
}
$taken = array_merge( array( $taken ), $this->widget_areas );
if ( in_array( $name, $taken ) ) {
$counter = substr( $name, - 1 );
if ( ! is_numeric( $counter ) ) {
$new_name = $name . " 1";
} else {
$new_name = substr( $name, 0, - 1 ) . ( (int) $counter + 1 );
}
$name = $this->get_name( $new_name );
}
return $name;
}
public function register_widget_areas() {
if ( empty( $this->widget_areas ) ) {
$this->widget_areas = get_option( $this->option_name );
}
$args = array(
'description' => __( 'Custom Sidebar', 'us' ),
'before_widget' => '<div id="%1$s" class="widget %2$s">',
'after_widget' => '</div>',
'before_title' => '<h3 class="widgettitle">',
'after_title' => '</h3>',
'class' => 'us-custom-area',
);
if ( is_array( $this->widget_areas ) ) {
foreach ( $this->widget_areas as $id => $name ) {
$args['name'] = $name;
$args['id'] = $id;
register_sidebar( $args );
}
}
}
private function name_to_id( $name ) {
$name = strtolower( $name );
$trans = array(
'&\S+?;' => '',
'\s+' => '_',
'ä' => 'ae',
'ö' => 'oe',
'ü' => 'ue',
'Ä' => 'Ae',
'Ö' => 'Oe',
'Ü' => 'Ue',
'ß' => 'ss',
'[^a-z0-9\-\._]' => '',
'-+' => '-',
'-$' => '-',
'^-' => '-',
'\.+$' => '',
'_+' => '_',
'^_$' => '',
);
$name = strip_tags( $name );
foreach ( $trans as $key => $val ) {
$name = preg_replace( "#" . $key . "#i", $val, $name );
}
if ( $name == '' ) {
$name = 'us_widget_area_' . rand( 99999, 999999 );
} else {
$name = 'us_widget_area_' . $name;
}
return stripslashes( $name );
}
}
new US_Widget_Areas();
// Add Default Sidebar
add_action( 'widgets_init', 'us_register_sidebars' );
function us_register_sidebars() {
register_sidebar( array(
'name' => __( 'Default Sidebar', 'us' ),
'id' => 'default_sidebar',
'before_widget' => '<div id="%1$s" class="widget %2$s">',
'after_widget' => '</div>',
'before_title' => '<h3 class="widgettitle">',
'after_title' => '</h3>',
) );
}