<?php

/**
 * @file
 * Contains views_handler_area_result handler.
 */

/**
 * Views area handler to display some configurable result summary.
 *
 * @ingroup views_area_handlers Views' area handlers
 */
class views_handler_area_result extends views_handler_area {

  function option_definition() {
    parent::option_definition();

    $options['content'] = array(
      'default' => 'Displaying @start - @end of @total',
      'translatable' => TRUE,
    );

    return $options;
  }

  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    $variables = array(
      'items' => array(
        '@start -- the initial record number in the set',
        '@end -- the last record number in the set',
        '@total -- the total records in the set',
        '@name -- the human-readable name of the view',
        '@per_page -- the number of items per page',
        '@current_page -- the current page number',
        '@page_count -- the total page count',
      ),
    );
    $list = theme('item_list', $variables);
    $form['content'] = array(
      '#title' => t('Display'),
      '#type' => 'textarea',
      '#rows' => 3,
      '#default_value' => $this->options['content'],
      '#description' => t('You may use HTML code in this field. The following tokens are supported:') . $list,
    );
  }


  /**
   * Find out the information to render.
   */
  function render($empty = FALSE) {
      // Must have options and does not work on summaries.
      if (!isset($this->options['content']) || $this->view->plugin_name == 'default_summary') {
        return;
      }
      $output = '';
      $format = $this->options['content'];
      // Calculate the page totals.
      $current_page = (int) $this->view->get_current_page() + 1;
      $per_page = (int) $this->view->get_items_per_page();
      $count = count($this->view->result);
      $total = $this->view->total_rows;
      $name = check_plain($this->view->human_name);
      $page_count = (int) ceil($total / $per_page);
      if ($per_page === 0) {
        $start = 1;
        $end = $total;
      }
      else {
        $total_count = $current_page * $per_page;
        if ($total_count > $total) {
          $total_count = $total;
        }
        $start = ($current_page - 1) * $per_page + 1;
        $end = $total_count;
      }
      // Get the search information.
      $items = array('start', 'end', 'total', 'name', 'per_page', 'current_page', 'page_count');
      $replacements = array();
      foreach ($items as $item) {
        $replacements["@$item"] = ${$item};
      }
      // Send the output.
      if (!empty($total)) {
        $output .= filter_xss_admin(str_replace(array_keys($replacements), array_values($replacements), $format));
      }
      return $output;
    }
}

