function mathfield_get_tokens in Math Field 7

Get the element details for mathfield expression tokens.

Parameters

array $element: The mathfield element.

Return value

array An associative array of elements keyed by token. Each element is an associative array with the following keys:

• selector: The jQuery selector to watch for changes.
• event: The jQuery event to trigger the reevaluation of the mathfield.

1 call to mathfield_get_tokens()

mathfield_widget_afterbuild in ./mathfield.module

Afterbuild callback for the mathfield widgets.

File

./mathfield.module, line 558

Adds a dynamic math expression field.

Code

function mathfield_get_tokens($element) {
  $return = array();
  $expression = $element['#settings']['expression'];
  $tokens = _mathfield_extract_tokens($expression);
  foreach ($tokens as $token => $context) {
    $field = field_info_field($context['field_name']);
    $context += array(
      'token' => $token,
      'field' => $field,
      'instance' => field_info_instance($element['#entity_type'], $context['field_name'], $element['#bundle']),
      'element' => $element,
    );

    // Allow modules to add mathfield support.
    $data = module_invoke($field['module'], 'mathfield_get_token', $context);
    drupal_alter(array(
      'mathfield_get_token',
      "mathfield_get_token_{$field['module']}",
    ), $data, $context);
    if (!empty($data)) {
      $return[$token] = $data;
    }
  }
  return $return;
}