webform_translation.module in Webform Translation 7

File

webform_translation.module

<?php

define('WEBFORM_TRANSLATION_CONFIGURATION_COMPONENT', -1);

/**
 * Implements hook_module_implements_alter().
 */
function webform_translation_module_implements_alter(&$implementations, $hook) {

  // This is done first.
  if ($hook == 'node_view') {
    $group = $implementations['webform_translation'];
    unset($implementations['webform_translation']);
    $implementations = array(
      'webform_translation' => $group,
    ) + $implementations;
  }
}

/**
 * Implements hook_webform_component_render_alter().
 */
function webform_translation_webform_component_render_alter(&$element, $component) {
  global $language;
  webform_translation_webform_translate_component($element, $component, $language);
}

/**
 * Implements hook_webform_submission_render_alter().
 */
function webform_translation_webform_submission_render_alter(&$renderable) {
  global $language;
  $children = element_children($renderable);
  foreach ($children as $child) {
    webform_translation_webform_translate_component($renderable[$child], $renderable[$child]['#webform_component'], $language);
  }
}

/**
 * Implements hook_form_FORM_ID_alter() for webform_component_edit_form.
 */
function webform_translation_form_webform_component_edit_form_alter(&$form, &$form_state) {
  $node = $form_state['build_info']['args'][0];
  $component = $form_state['build_info']['args'][1];

  // Get the array that contains the #translatable data.
  $component_render = webform_component_invoke($component['type'], 'render', $component);

  // Add the translation fields and fields.
  if (isset($component_render['#translatable'])) {
    $languages = $node->translations->data;
    if (count($languages)) {
      $node_language = $languages[$node->language];
      unset($languages[$node->language]);
      $form['#submit'][] = 'webform_translation_component_form_submit';
      $weight = isset($form['actions']['#weight']) ? $form['actions']['#weight'] : $form['actions']['submit']['#weight'];
      $form['translate'] = array(
        '#type' => 'fieldset',
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
        '#title' => t('Translate'),
        '#weight' => $weight - 1,
      );
      foreach ($languages as $language) {
        $form['translate'][$language['language']] = array(
          '#type' => 'fieldset',
          '#collapsible' => TRUE,
          '#collapsed' => count($languages) > 1,
          '#title' => t('From @source to @destination', array(
            '@destination' => $language['language'],
            '@source' => $node_language['language'],
          )),
        );
        foreach ($component_render['#translatable'] as $field) {
          $source_field = _webform_translation_get_field($form, $field);
          if ($field == 'options') {
            $source_field['#description'] = '<strong>' . t('Keep the safe_key similar to the untranslated version.') . '</strong><br />' . $source_field['#description'];
          }
          $form['translate'][$language['language']][$field] = array(
            '#type' => $source_field['#type'],
            '#title' => $source_field['#title'],
            '#description' => empty($source_field['#description']) ? '' : $source_field['#description'],
            '#default_value' => empty($component['cid']) ? '' : webform_translation_component_get_translation($component, $field, $language['language']),
          );
          if (!empty($source_field['#maxlength'])) {
            $form['translate'][$language['language']][$field]['#maxlength'] = $source_field['#maxlength'];
          }

          // Text format elements have a special value.
          if ($source_field['#type'] == 'text_format' && is_array($form['translate'][$language['language']][$field]['#default_value'])) {
            $form['translate'][$language['language']][$field]['#format'] = $form['translate'][$language['language']][$field]['#default_value']['format'];
            $form['translate'][$language['language']][$field]['#default_value'] = $form['translate'][$language['language']][$field]['#default_value']['value'];
          }
        }
      }
    }
  }
}

/**
 * Submit handler for webform component form to translate the component.
 */
function webform_translation_component_form_submit($form, $form_state) {
  if (isset($form_state['values']['translate'])) {
    foreach ($form_state['values']['translate'] as $language => $fields) {
      foreach ($fields as $field => $translation) {
        $source_field = _webform_translation_get_field($form, $field);
        if (empty($translation) || $source_field['#default_value'] == $translation) {
          unset($fields[$field]);
        }
      }
      if ($fields) {

        // And put it in the db.
        db_merge('webform_component_translation')
          ->key(array(
          'nid' => $form_state['values']['nid'],
          'cid' => $form_state['values']['cid'],
          'language' => $language,
        ))
          ->fields(array(
          'translations' => serialize($fields),
        ))
          ->execute();
      }
    }
  }
}

/**
 * Helper function to translate a component.
 */
function webform_translation_webform_translate_component(&$element, $component, $language) {
  if (isset($element['#translatable'])) {
    foreach ($element['#translatable'] as $form_element) {

      // Translate a property of the $element.
      if (isset($element['#' . $form_element])) {
        $value = webform_translation_component_get_translation($component, $form_element, $language->language);

        // Text to array for options.
        if ($form_element == 'options') {
          $value = _webform_select_options_from_text($value);
        }

        // Array to text for text_format.
        if ($form_element == 'markup') {
          if (is_array($value) && isset($value['value'], $value['format'])) {
            $value = check_markup($value['value'], $value['format']);
          }
          else {
            $value = NULL;
          }
        }

        // Some values are NULL because they don't have a translation, not even a default.
        if ($value !== NULL) {
          $element['#' . $form_element] = $value;
        }
      }
    }

    // Translate a sub field of the element.
  }
}

/**
 * Helper function to retrieve a translation for a component.
 */
function webform_translation_component_get_translation($component, $field, $language) {
  $index = $component['nid'] . ':' . $component['cid'] . ':' . $language;
  $translations =& drupal_static(__FUNCTION__ . $index, array());
  if (!$translations) {
    $webform_translation = db_select('webform_component_translation', 'wct')
      ->condition('nid', $component['nid'])
      ->condition('cid', $component['cid'])
      ->condition('language', $language)
      ->fields('wct', array(
      'translations',
    ))
      ->execute()
      ->fetchObject();
    if (isset($webform_translation->translations)) {
      $translations = unserialize($webform_translation->translations);
    }
  }

  // Return translation, or the default value.
  return @$translations[$field] ?: _webform_translation_get_field($component, $field);
}

/**
 * Helper function to find a field in an array of elements.
 */
function _webform_translation_get_field($elements, $field) {

  // Stupid inconsistent webform.
  if ($field == 'title') {
    $field = 'name';
  }
  elseif ($field == 'options') {
    $field = 'items';
  }
  elseif ($field == 'markup') {
    $field = 'value';
  }

  // We found the element.
  if (isset($elements[$field])) {
    return $elements[$field];
  }

  // Find the element in the children.
  $children = element_children($elements);
  foreach ($children as $child) {
    if ($child != 'children' && is_array($elements[$child])) {
      if ($return = _webform_translation_get_field($elements[$child], $field)) {
        return $return;
      }
    }
  }
}

/**
 * Implements hook_node_delete().
 */
function webform_translation_node_delete($node) {
  db_delete('webform_component_translation')
    ->condition('nid', $node->nid)
    ->execute();
}

/**
 * Implements hook_webform_component_delete().
 */
function webform_translation_webform_component_delete($component) {
  db_delete('webform_component_translation')
    ->condition('nid', $component['nid'])
    ->condition('cid', $component['cid'])
    ->execute();
}

/**
 * Implements hook_form_FORM_ID_alter() for webform_configure_form().
 *
 * Translate the submit button.
 */
function webform_translation_form_webform_configure_form_alter(&$form, &$form_state) {
  $node = $form['#node'];
  $languages = $node->translations->data;
  $node_language = $languages[$node->language];
  unset($languages[$node->language]);
  if ($languages) {
    $form['#submit'][] = 'webform_translation_configure_form_submit';
    $form['translate'] = array(
      '#type' => 'fieldset',
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
      '#title' => t('Translate'),
      '#weight' => $form['actions']['#weight'] - 1,
      '#tree' => TRUE,
    );
    foreach ($languages as $language) {
      $form['translate'][$language['language']] = array(
        '#type' => 'fieldset',
        '#collapsible' => TRUE,
        '#collapsed' => count($languages) > 1,
        '#title' => t('From @source to @destination', array(
          '@destination' => $language['language'],
          '@source' => $node_language['language'],
        )),
      );

      // Make fake components to translate.
      $component = array(
        'nid' => $node->nid,
        'cid' => WEBFORM_TRANSLATION_CONFIGURATION_COMPONENT,
        'submit_text' => $node->webform['submit_text'],
      );
      foreach (array(
        'submit_text',
      ) as $field_name) {
        $source_field = _webform_translation_get_field($form, $field_name);
        $form['translate'][$language['language']][$field_name] = array(
          '#type' => $source_field['#type'],
          '#title' => $source_field['#title'],
          '#description' => $source_field['#description'],
          '#default_value' => webform_translation_component_get_translation($component, $field_name, $language['language']),
        );
      }
    }
  }
}

/**
 * Submit handler for webform configure form to translate the fake components.
 */
function webform_translation_configure_form_submit($form, $form_state) {
  if (isset($form_state['values']['translate'])) {
    foreach ($form_state['values']['translate'] as $language => $fields) {
      foreach ($fields as $field => $translation) {
        $source_field = _webform_translation_get_field($form, $field);
        if (empty($translation) || $source_field['#default_value'] == $translation) {
          unset($fields[$field]);
        }
      }
      if ($fields) {

        // And put it in the db.
        db_merge('webform_component_translation')
          ->key(array(
          'nid' => $form_state['values']['nid'],
          'cid' => WEBFORM_TRANSLATION_CONFIGURATION_COMPONENT,
          'language' => $language,
        ))
          ->fields(array(
          'translations' => serialize($fields),
        ))
          ->execute();
      }
    }
  }
}

/**
 * Implements hook_node_view().
 */
function webform_translation_node_view($node) {
  global $language_content;

  // Translate webform components.
  if (in_array($node->type, webform_variable_get('webform_node_types'))) {
    if (isset($node->webform)) {
      $component = array(
        'nid' => $node->nid,
        'cid' => WEBFORM_TRANSLATION_CONFIGURATION_COMPONENT,
        'submit_text' => $node->webform['submit_text'],
      );
      $node->webform['submit_text'] = webform_translation_component_get_translation($component, 'submit_text', $language_content->language);
    }
  }
}

Functions

Name	Description
webform_translation_component_form_submit	Submit handler for webform component form to translate the component.
webform_translation_component_get_translation	Helper function to retrieve a translation for a component.
webform_translation_configure_form_submit	Submit handler for webform configure form to translate the fake components.
webform_translation_form_webform_component_edit_form_alter	Implements hook_form_FORM_ID_alter() for webform_component_edit_form.
webform_translation_form_webform_configure_form_alter	Implements hook_form_FORM_ID_alter() for webform_configure_form().
webform_translation_module_implements_alter	Implements hook_module_implements_alter().
webform_translation_node_delete	Implements hook_node_delete().
webform_translation_node_view	Implements hook_node_view().
webform_translation_webform_component_delete	Implements hook_webform_component_delete().
webform_translation_webform_component_render_alter	Implements hook_webform_component_render_alter().
webform_translation_webform_submission_render_alter	Implements hook_webform_submission_render_alter().
webform_translation_webform_translate_component	Helper function to translate a component.
_webform_translation_get_field	Helper function to find a field in an array of elements.

Constants

Name	Description
WEBFORM_TRANSLATION_CONFIGURATION_COMPONENT