CKEditor5OffCanvasTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;


/**
 * Tests for CKEditor 5 to ensure correct styling in off-canvas.
 *
 * @group ckeditor5
 * @internal
 */
class CKEditor5OffCanvasTest extends CKEditor5TestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'ckeditor5',
        'ckeditor5_test',
    ];
    
    /**
     * Tests if CKEditor is properly styled inside an off-canvas dialog.
     */
    public function testOffCanvasStyles() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->addNewTextFormat($page, $assert_session);
        $this->drupalGet('/ckeditor5_test/off_canvas');
        // The "Add Node" link triggers an off-canvas dialog with an add node form
        // that includes CKEditor.
        $page->clickLink('Add Node');
        $assert_session->waitForElementVisible('css', '#drupal-off-canvas-wrapper');
        $assert_session->assertWaitOnAjaxRequest();
        $styles = $assert_session->elementExists('css', 'style#ckeditor5-off-canvas-reset');
        $this->assertStringContainsString('#drupal-off-canvas-wrapper [data-drupal-ck-style-fence]', $styles->getHtml());
        $assert_session->elementExists('css', '.ck');
        $ckeditor_toolbar_bg_color = $this->getSession()
            ->evaluateScript('window.getComputedStyle(document.querySelector(\'.ck.ck-toolbar\')).backgroundColor');
        $this->assertEquals('rgb(255, 255, 255)', $ckeditor_toolbar_bg_color, 'Toolbar background-color should be unaffected by off-canvas');
        // Editable area should be visible.
        $assert_session->elementExists('css', '.ck .ck-content');
        $ckeditor_editable_bg_color = $this->getSession()
            ->evaluateScript('window.getComputedStyle(document.querySelector(\'.ck.ck-content\')).backgroundColor');
        $this->assertEquals('rgb(255, 255, 255)', $ckeditor_editable_bg_color, 'Content background-color should be unaffected by off-canvas');
    }

}