function diff_form_alter in Diff 6.2

Same name and namespace in other branches

1. 5.2 diff.module \diff_form_alter()
2. 5 diff.module \diff_form_alter()
3. 6 diff.module \diff_form_alter()
4. 7.2 diff.module \diff_form_alter()

Implementation of hook_form_alter().

File

./diff.module, line 146

Provides functionality to show a diff between two node revisions.

Code

function diff_form_alter(&$form, $form_state, $form_id) {
  if (isset($form['type']['#value']) && $form['type']['#value'] . '_node_form' == $form_id) {

    // Add a 'View changes' button on the node edit form.
    if (variable_get('show_preview_changes_' . $form['type']['#value'], TRUE) && $form['nid']['#value'] > 0) {
      $form['buttons']['preview_changes'] = array(
        '#type' => 'submit',
        '#value' => t('View changes'),
        '#weight' => 12,
        '#submit' => array(
          'diff_node_form_build_preview_changes',
        ),
      );
    }
  }
  elseif ($form_id == 'node_type_form' && isset($form['identity']['type'])) {

    // Node type edit form.
    // Add checkbox to activate 'View changes' button per node type.
    $form['workflow']['diff'] = array(
      '#title' => t('Diff'),
      '#type' => 'item',
      '#tree' => FALSE,
    );
    $form['workflow']['diff']['show_preview_changes'] = array(
      '#type' => 'checkbox',
      '#title' => t('Show %preview_changes button on node edit form', array(
        '%preview_changes' => t('View changes'),
      )),
      '#weight' => 10,
      '#default_value' => variable_get('show_preview_changes_' . $form['#node_type']->type, TRUE),
    );
    $form['workflow']['diff']['remove_markup_default'] = array(
      '#type' => 'checkbox',
      '#title' => t('Remove markup by default when comparing body text'),
      '#weight' => 10,
      '#default_value' => variable_get('remove_markup_default_' . $form['#node_type']->type, FALSE),
    );
    $form['workflow']['diff']['show_diff_inline'] = array(
      '#type' => 'checkbox',
      '#title' => t('Show diffs inline for this content type'),
      '#description' => t("You must enable the 'Inline diff' block to use this feature"),
      '#weight' => 10,
      '#default_value' => variable_get('show_diff_inline_' . $form['#node_type']->type, FALSE),
    );
    $form['workflow']['diff']['enable_revisions_page'] = array(
      '#type' => 'checkbox',
      '#title' => t('Enable the %revisions page for this content type', array(
        '%revisions' => t('Revisions'),
      )),
      '#weight' => 11,
      '#default_value' => variable_get('enable_revisions_page_' . $form['#node_type']->type, TRUE),
    );
  }
}