function CKEditor5HeightTest::isSourceEditingScrollable

Checks that the source editing element is scrollable.

File

core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5HeightTest.php, line 109

Class

CKEditor5HeightTest

Tests ckeditor height respects field rows config.

Namespace

Code

private function isSourceEditingScrollable() : bool {
    $javascript = <<<JS
  (function () {
    const element = document.querySelector('.ck-source-editing-area textarea');
    const style = window.getComputedStyle(element);
    if (
      element.scrollHeight > element.clientHeight &&
      style.overflow !== 'hidden' &&
      style['overflow-y'] !== 'hidden' &&
      style.overflow !== 'clip' &&
      style['overflow-y'] !== 'clip'
    ) {
      if (
        element === document.scrollingElement ||
        (style.overflow !== 'visible' &&
          style['overflow-y'] !== 'visible')
      ) {
        return true;
      }
    }

    return false;
  })();
JS;
    $evaluateScript = $this->getSession()
        ->evaluateScript($javascript);
    return $evaluateScript;
}