public static function BackgroundImageFormTrait::findFirstInput in Background Image 8

Same name and namespace in other branches

1. 2.x src/BackgroundImageFormTrait.php \Drupal\background_image\BackgroundImageFormTrait::findFirstInput()
2. 2.0.x src/BackgroundImageFormTrait.php \Drupal\background_image\BackgroundImageFormTrait::findFirstInput()

Retrieves first available #input element, going through children if needed.

Parameters

array $element: The render array element to use, passed by reference

bool $file: Flag that indicates whether to use the hidden "fids" field as the input value for managed files.

bool $found: A variable that is passed by reference to determine if the element has been found.

Return value

array The first available #input element, passed by reference.

2 calls to BackgroundImageFormTrait::findFirstInput()

BackgroundImageForm::buildImage in src/Form/BackgroundImageForm.php

Builds the "Image" group.

BackgroundImageFormTrait::preRenderStates in src/BackgroundImageFormTrait.php

The #pre_render callback for ::addState.

File

src/BackgroundImageFormTrait.php, line 305

Class

BackgroundImageFormTrait

Trait BackgroundImageFormTrait.

Namespace

Drupal\background_image

Code

public static function &findFirstInput(array &$element, $file = TRUE, &$found = FALSE) {

  // Handle managed files differently (use their hidden fids element).
  if (!empty($element['#input']) && isset($element['#type']) && $element['#type'] === 'managed_file' && isset($element['fids']) && $file) {
    $fids =& self::findFirstInput($element['fids'], $file, $found);
    if ($found && $fids) {
      return $fids;
    }
    return $element;
  }
  else {
    if (!empty($element['#input']) || isset($element['#type']) && $element['#type'] === 'managed_file') {
      $found = TRUE;
      return $element;
    }
  }
  foreach (Element::children($element) as $child) {
    $child_element =& self::findFirstInput($element[$child], $file, $found);
    if ($found && $child_element) {
      return $child_element;
    }
  }
  return $element;
}