function pagination_form_alter in Pagination (Node) 6

Same name and namespace in other branches

1. 7 pagination.module \pagination_form_alter()

@desc Implementation of hook_form_alter()

File

./pagination.module, line 439

pagination.module @desc Allow for arbitrary nodes to be paginated. administrators can set which nodes they wish to paginate, and the length of content required to split a node into pages. Alternatively, content creators can set manual break points…

Code

function pagination_form_alter(&$form, $form_state, $form_id) {
  if ($form['#id'] != 'node-form') {
    return;
  }
  $pg =& Pagination::getInstance();
  $paging = $pg
    ->getValue($form['type']['#value']);
  $style = $pg
    ->getStyle($form['type']['#value']);
  $help = '';
  if ($paging) {
    $form['pagination'] = array(
      '#type' => 'fieldset',
      '#collapsible' => true,
      '#collapsed' => (bool) variable_get('pagination_collapsed', 1),
      '#title' => t('Page headers'),
      '#weight' => -1,
      '#attributes' => array(
        'class' => 'pagination-item-form',
      ),
    );
    if ($paging == PAGINATION_CUSTOM) {

      // Add helper text for manual paging (custom headers).
      $help .= '<p>' . t('If you would like your article to flow over more than one page, insert a page break within the body of your content at a convenient location:') . '</p>';
      $help .= '<p>' . t('<em>ex. <strong>[ pagebreak ]</strong></em>') . '</p>';
      $help .= '<p>' . t('In addition, you may set a title for the specific page by using this syntax instead:') . '</p>';
      $help .= '<p>' . t('<em>ex. <strong>[ header = My Section Title ]</strong></em>') . '</p>';
    }
    elseif ($paging == PAGINATION_TAG) {
      $help .= '<p>' . t('Your article pages will break according to the presence of @tag tags. The contents of your @tag will be used as the page title.', array(
        '@tag' => '<h3>',
      )) . '</p>';
    }
    elseif ($paging > PAGINATION_AUTO and $style > PAGINATION_DEFAULT) {
      drupal_add_js(drupal_get_path('module', 'pagination') . '/pagination.js');

      // Add helper text for default paging.
      $headers = isset($form['nid']['#value']) ? $pg
        ->getHeaders($form['nid']['#value']) : array();
      $form['pagination']['pagination_headers'] = array(
        '#type' => 'textarea',
        '#title' => t('Page headers'),
        '#rows' => 3,
        '#description' => t('You may declare page headers here. The first line represents the title of the 2nd page. Note: the page estimate may be underestimated by one page (or so) in certain circumstances.'),
        '#default_value' => implode("\n", $headers),
        '#suffix' => t('<div>Current page estimate: <span id="pagination-guess">1 page</span> (<span id="pagination-count">%words</span> words per page)</div>', array(
          '%words' => $paging,
        )),
      );
    }
    else {
      $help .= '<p>' . t('Your article will paginate based upon an approximation of !number words per page.', array(
        '!number' => $paging,
      )) . '</p>';
    }
    $form['pagination']['#description'] = $help;
  }
}