paths['css'] = AVIA_CSS_URL;
$this->paths['js'] = AVIA_JS_URL;
$this->stored = 'avia_sidebars';
$this->title = THEMENAME ." ". __('Custom Widget Area','avia_framework');
add_action('load-widgets.php', array(&$this, 'load_assets') , 5 );
add_action('widgets_init', array(&$this, 'register_custom_sidebars') , 1000 );
add_action('wp_ajax_avia_ajax_delete_custom_sidebar', array(&$this, 'delete_sidebar_area') , 1000 );
}
//load backend css, js and add hooks to the widget page
function load_assets()
{
add_action('admin_print_scripts', array(&$this, 'template_add_widget_field') );
add_action('load-widgets.php', array(&$this, 'add_sidebar_area'), 100);
wp_enqueue_script('avia_sidebar' , $this->paths['js'] . 'avia_sidebar.js');
wp_enqueue_style( 'avia_sidebar' , $this->paths['css'] . 'avia_sidebar.css');
}
//js template that gets attached to the widget area so the user can add widget names
function template_add_widget_field()
{
$nonce = wp_create_nonce ('avia-delete-custom-sidebar-nonce');
$nonce = '';
echo "\n\n";
}
//adds a sidebar area to the database
function add_sidebar_area()
{
if(!empty($_POST['avia-add-widget']))
{
$this->sidebars = get_option($this->stored);
$name = $this->get_name($_POST['avia-add-widget']);
if(empty($this->sidebars))
{
$this->sidebars = array($name);
}
else
{
$this->sidebars = array_merge($this->sidebars, array($name));
}
update_option($this->stored, $this->sidebars);
wp_redirect( admin_url('widgets.php') );
die();
}
}
//delete a sidebar area from the database
function delete_sidebar_area()
{
check_ajax_referer('avia-delete-custom-sidebar-nonce');
if(!empty($_POST['name']))
{
$name = stripslashes($_POST['name']);
$this->sidebars = get_option($this->stored);
if(($key = array_search($name, $this->sidebars)) !== false)
{
unset($this->sidebars[$key]);
update_option($this->stored, $this->sidebars);
echo "sidebar-deleted";
}
}
die();
}
//checks the user submitted name and makes sure that there are no colitions
function get_name($name)
{
if(empty($GLOBALS['wp_registered_sidebars'])) return $name;
$taken = array();
foreach ( $GLOBALS['wp_registered_sidebars'] as $sidebar )
{
$taken[] = $sidebar['name'];
}
if(empty($this->sidebars)) $this->sidebars = array();
$taken = array_merge($taken, $this->sidebars);
if(in_array($name, $taken))
{
$counter = substr($name, -1);
$new_name = "";
if(!is_numeric($counter))
{
$new_name = $name . " 1";
}
else
{
$new_name = substr($name, 0, -1) . ((int) $counter + 1);
}
$name = $this->get_name($new_name);
}
return $name;
}
//register custom sidebar areas
function register_custom_sidebars()
{
if(empty($this->sidebars)) $this->sidebars = get_option($this->stored);
$args = array(
'before_widget' => '',
'after_widget' => '
',
'before_title' => ''
);
$args = apply_filters('avia_custom_widget_args', $args);
if(is_array($this->sidebars))
{
foreach ($this->sidebars as $sidebar)
{
$args['name'] = $sidebar;
$args['id'] = avia_backend_safe_string($sidebar,'-');
$args['class'] = 'avia-custom';
register_sidebar($args);
}
}
}
}
}