/**
* hooked into plugins_loaded action : creates the plugin instance
*/
public static function init()
{
is_null(self::$instance) && (self::$instance = new self());
return self::$instance;
}
/**
* switch the current settings for those indicated by a cmwizard shortcode
*
* @param object $args The args passed into walk()
* @param string $at The current processing stage
* @param boolean $hasCurrent Whether or not current item is in this stage
* @param boolean $hasOutput Whether or not there will be any output (as best we know so far)
* @return boolean True if we can use alternative settings
*/
private function _cmw_switch_settings(&$args, $at = '', $hasCurrent = false, $hasOutput = false)
{
if ($args->_custom_menu_wizard['switch_at'] == $at && ($args->_custom_menu_wizard['switch_if'] == 'current' && $hasCurrent || $args->_custom_menu_wizard['switch_if'] == 'no-current' && !$hasCurrent || $args->_custom_menu_wizard['switch_if'] == 'no-output' && !$hasOutput)) {
$plugin = Custom_Menu_Wizard_Plugin::init();
//if switch_to is empty, it gets defaulted to a minimum
//trim off square brackets, self-terminators, and spaces...
$switchTo = trim($args->_custom_menu_wizard['switch_to'], ' ][/');
//if it doesn't start with our shortcode, prepend it...
if (substr($switchTo . ' ', 0, 9) != 'cmwizard ') {
$switchTo = 'cmwizard ' . $switchTo;
}
//append our current menu so that it will be used when the shortcode atts are parsed...
$switchTo = trim($switchTo) . ' menu=' . $args->_custom_menu_wizard['menu'];
if (($new_cmw = $plugin->encode_shortcode($switchTo)) !== false) {
//store old...
$old_cmw = array_merge(array(), $args->_custom_menu_wizard);
//merge new into old, overriding _walker...
$new_cmw = array_merge($old_cmw, (array) $new_cmw, array('_walker' => array('alternative' => true)));
//overwrite current with new...
$args->_custom_menu_wizard = $new_cmw;
//put new and old into the current _walker, so that they become available to the widget
//instance (as long as there's some output!)...
$args->_custom_menu_wizard['_walker']['instances'] = array('old' => $old_cmw, 'new' => $new_cmw);
unset($old_cmw);
return true;
}
}
return false;
}