class OffCanvasTest

class OffCanvasTest extends OffCanvasTestBase {
    
    /**
     * Stores to the class that should be on the last dialog.
     *
     * @var string
     *
     * @see \Drupal\off_canvas_test\Controller\TestController::linksDisplay.
     */
    protected $lastDialogClass;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'off_canvas_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests that non-contextual links will work with the off-canvas dialog.
     *
     * @dataProvider themeDataProvider
     */
    public function testOffCanvasLinks($theme) : void {
        $this->enableTheme($theme);
        $this->drupalGet('/off-canvas-test-links');
        $page = $this->getSession()
            ->getPage();
        $web_assert = $this->assertSession();
        // Confirm touchevents detection is loaded with Off Canvas assets.
        $this->assertNotNull($web_assert->waitForElement('css', 'html.no-touchevents'));
        // Make sure off-canvas dialog is on page when first loaded.
        $web_assert->elementNotExists('css', '#drupal-off-canvas');
        // Check opening and closing with two separate links.
        // Make sure tray updates to new content.
        // Check the first link again to make sure the empty title class is
        // removed.
        foreach ([
            1,
            2,
            1,
        ] as $link_index) {
            $this->assertOffCanvasDialog($link_index, 'side');
            $header_text = $this->getOffCanvasDialog()
                ->find('css', '.ui-dialog-title')
                ->getText();
            if ($link_index === 2) {
                // Check no title behavior.
                $web_assert->elementExists('css', '.ui-dialog-empty-title');
                $this->assertEquals(' ', $header_text);
                $style = $page->find('css', '.ui-dialog-off-canvas')
                    ->getAttribute('style');
                $this->assertStringContainsString('width: 555px;', $style, 'Dialog width respected.');
                $page->clickLink("Open side panel 1");
                $this->waitForOffCanvasToOpen();
                $style = $page->find('css', '.ui-dialog-off-canvas')
                    ->getAttribute('style');
                $this->assertStringNotContainsString('width: 555px;', $style, 'Dialog width reset to default.');
            }
            else {
                // Check that header is correct.
                $this->assertEquals("Thing {$link_index}", $header_text);
                $web_assert->elementNotExists('css', '.ui-dialog-empty-title');
            }
        }
        // Test the off_canvas_top tray.
        foreach ([
            1,
            2,
        ] as $link_index) {
            $this->assertOffCanvasDialog($link_index, 'top');
            $style = $page->find('css', '.ui-dialog-off-canvas')
                ->getAttribute('style');
            if ($link_index === 1) {
                $this->assertStringContainsString('height: auto;', $style);
            }
            else {
                $this->assertStringContainsString('height: 421px;', $style);
            }
        }
        // Ensure an off-canvas link opened from inside the off-canvas dialog will
        // work.
        $this->drupalGet('/off-canvas-test-links');
        $page->clickLink('Display more links!');
        $this->waitForOffCanvasToOpen();
        $web_assert->linkExists('Off_canvas link!');
        // Click off-canvas link inside off-canvas dialog
        $page->clickLink('Off_canvas link!');
        $this->waitForOffCanvasToOpen();
        $web_assert->elementTextContains('css', '.ui-dialog[aria-describedby="drupal-off-canvas"]', 'Thing 2 says hello');
        // Ensure an off-canvas link opened from inside the off-canvas dialog will
        // work after another dialog has been opened.
        $this->drupalGet('/off-canvas-test-links');
        $page->clickLink("Open side panel 1");
        $this->waitForOffCanvasToOpen();
        $page->clickLink('Display more links!');
        $this->waitForOffCanvasToOpen();
        $web_assert->linkExists('Off_canvas link!');
        // Click off-canvas link inside off-canvas dialog
        $page->clickLink('Off_canvas link!');
        $this->waitForOffCanvasToOpen();
        $web_assert->elementTextContains('css', '.ui-dialog[aria-describedby="drupal-off-canvas"]', 'Thing 2 says hello');
    }
    
    /**
     * Tests the body displacement behaves differently at a narrow width.
     */
    public function testNarrowWidth() : void {
        $narrow_width_breakpoint = 768;
        $offset = 20;
        $height = 800;
        $page = $this->getSession()
            ->getPage();
        $web_assert = $this->assertSession();
        // Test the same functionality on multiple themes.
        foreach (static::getTestThemes() as $theme) {
            $this->enableTheme($theme);
            // Testing at the wider width.
            $this->getSession()
                ->resizeWindow($narrow_width_breakpoint + $offset, $height);
            $this->drupalGet('/off-canvas-test-links');
            $this->assertFalse($page->find('css', '.dialog-off-canvas-main-canvas')
                ->hasAttribute('style'), 'Body not padded on wide page load.');
            $page->clickLink("Open side panel 1");
            $this->waitForOffCanvasToOpen();
            // Check that the main canvas is padded when page is not narrow width and
            // tray is open.
            $page->waitFor(10, function ($page) {
                return $page->find('css', '.dialog-off-canvas-main-canvas')
                    ->hasAttribute('style');
            });
            $web_assert->elementAttributeContains('css', '.dialog-off-canvas-main-canvas', 'style', 'padding-right');
            // Testing at the narrower width.
            $this->getSession()
                ->resizeWindow($narrow_width_breakpoint - $offset, $height);
            $this->drupalGet('/off-canvas-test-links');
            $this->assertFalse($page->find('css', '.dialog-off-canvas-main-canvas')
                ->hasAttribute('style'), 'Body not padded on narrow page load.');
            $page->clickLink("Open side panel 1");
            $this->waitForOffCanvasToOpen();
            $this->assertFalse($page->find('css', '.dialog-off-canvas-main-canvas')
                ->hasAttribute('style'), 'Body not padded on narrow page with tray open.');
        }
    }
    
    /**
     * @param int $link_index
     *   The index of the link to test.
     * @param string $position
     *   The position of the dialog to test.
     *
     * @internal
     */
    protected function assertOffCanvasDialog(int $link_index, string $position) : void {
        $page = $this->getSession()
            ->getPage();
        $web_assert = $this->assertSession();
        $link_text = "Open {$position} panel {$link_index}";
        // Click the first test like that should open the page.
        $page->clickLink($link_text);
        if ($this->lastDialogClass) {
            $web_assert->assertNoElementAfterWait('css', '.' . $this->lastDialogClass);
        }
        $this->waitForOffCanvasToOpen($position);
        $this->lastDialogClass = "{$position}-{$link_index}";
        // Check that response text is on page.
        $web_assert->pageTextContains("Thing {$link_index} says hello");
        $off_canvas_tray = $this->getOffCanvasDialog();
        // Check that tray is visible.
        $this->assertEquals(TRUE, $off_canvas_tray->isVisible());
        $tray_text = $off_canvas_tray->findById('drupal-off-canvas')
            ->getText();
        $this->assertEquals("Thing {$link_index} says hello", $tray_text);
    }

}