system/handlers/userthemehandler.php

<?php
namespace Habari;

class UserThemeHandler extends ActionHandler
{

  public function __construct()
  {
    $this->setup_theme();
  }

  public function act( $action )
  {
    $this->action = $action;

    $action_method = 'act_' . $action;
    $before_action_method = 'before_' . $action_method;
    $after_action_method = 'after_' . $action_method;

    $this->theme->$before_action_method();
    try {
      $handled = false;
      $handled = Plugins::filter( 'theme_act_' . $action, $handled, $this->theme );
      if ( !$handled ) {
        $this->theme->$action_method();
      }
    }
    catch( Error $e ) {
      EventLog::log( $e->humane_error(), 'error', 'theme', 'habari', print_r( $e, 1 ) );
      Session::error( $e->humane_error() ); //Should we display any error here?
      if ( DEBUG ) {
        Utils::debug( $e );
      }
    }
    $this->theme->$after_action_method();
  }

  protected function display( $template_name )
  {
    /*
     * Assign internal variables into the theme ( and therefore into the theme's template
     * engine.  See Theme::assign().
     */
    foreach ( $this->handler_vars as $key => $value ) {
      $this->theme->assign( $key, $value );
    }
    try {
      $this->theme->display( $template_name );
    }
    catch( Error $e ) {
      EventLog::log( $e->humane_error(), 'error', 'theme', 'habari', print_r( $e, 1 ) );
    }
  }
}

?>