function hide_submit_form_alter in Hide submit button 7

Same name and namespace in other branches

1. 5 hide_submit.module \hide_submit_form_alter()
2. 6 hide_submit.module \hide_submit_form_alter()
3. 7.2 hide_submit.module \hide_submit_form_alter()

Implements hook_form_alter().

Used to add "hide-submit-exclude" class to some forms Avoid conflicts and refine hiding

File

./hide_submit.module, line 135

Hide the submit button after clicked to prevent/reduce duplicate postings.

Code

function hide_submit_form_alter(&$form, $form_state, $form_id) {

  // Act only if script was loaded
  if (!hide_submit_js_loaded()) {
    return;
  }
  $exclude_forms = explode("\r\n", variable_get('hide_submit_form_exclusion', ''));
  $found = FALSE;
  $mode = variable_get('hide_submit_form_exclusion_mode', HIDE_SUBMIT_EXCLUDE_LISTED_FORMS);

  // Prevent known conflicts by adding form ids of known ajax forms
  if (variable_get('hide_submit_fix_known_conflicts', TRUE) && $mode == HIDE_SUBMIT_EXCLUDE_LISTED_FORMS) {

    // shoutbox module
    if (module_exists('shoutbox')) {
      $exclude_forms[] = 'shoutbox_add_form';
      if (_hide_submit_debug_on()) {
        drupal_set_message("hide submit: Possible conflict detected and handled - shoutbox module");
      }
    }
  }
  foreach ($exclude_forms as $exclude_form_id) {
    if ($form_id == $exclude_form_id) {
      $found = TRUE;
      if ($mode == HIDE_SUBMIT_EXCLUDE_LISTED_FORMS) {
        _hide_submit_add_exclude_class($form);
        if (_hide_submit_debug_on()) {
          drupal_set_message("hide_submit: Excluding form " . $exclude_form_id);
        }
      }
    }
  }
  if (!$found && $mode == HIDE_SUBMIT_EXCLUDE_UNLISTED_FORMS) {
    _hide_submit_add_exclude_class($form);
    if (_hide_submit_debug_on()) {
      drupal_set_message("hide_submit: Excluding form " . $form_id);
    }
  }

  // Comment workaround
  // When disable button mode is selected
  // Comments won't submit because disabled button value is not included in the $_POST[] data
  // This workaround should fix this
  if (($form_id == 'comment_form' || preg_match('/node_form$/', $form_id)) && variable_get('hide_submit_script_mode', HIDE_SUBMIT_MODE_HIDE) == HIDE_SUBMIT_MODE_DISABLE) {
    $form['hide_submit_fake_op'] = array(
      '#type' => 'hidden',
      '#value' => "",
    );
  }
}