class DisplayTest

class DisplayTest extends UITestBase {
  
  /**
   * Views used by this test.
   *
   * @var array
   */
  public static $testViews = [
    'test_display',
  ];
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'contextual',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Tests adding a display.
   */
  public function testAddDisplay() {
    $view = $this->randomView();
    $this->assertSession()
      ->elementNotExists('xpath', '//li[@data-drupal-selector="edit-displays-top-tabs-block-1"]');
    $this->assertSession()
      ->elementNotExists('xpath', '//li[@data-drupal-selector="edit-displays-top-tabs-block-2"]');
    $this->assertSession()
      ->pageTextMatchesCount(0, '/Block name:/');
    $this->submitForm([], 'Add Block');
    $this->assertSession()
      ->elementTextContains('xpath', '//li[@data-drupal-selector="edit-displays-top-tabs-block-1"]', 'Block*');
    $this->assertSession()
      ->elementNotExists('xpath', '//li[@data-drupal-selector="edit-displays-top-tabs-block-2"]');
    $this->assertSession()
      ->pageTextMatchesCount(1, '/Block name:/');
  }
  
  /**
   * Tests reordering of displays.
   */
  public function testReorderDisplay() {
    $view = [
      'block[create]' => TRUE,
    ];
    $view = $this->randomView($view);
    $this->clickLink('Reorder displays');
    $this->assertSession()
      ->elementExists('xpath', '//tr[@id="display-row-default"]');
    $this->assertSession()
      ->elementExists('xpath', '//tr[@id="display-row-page_1"]');
    $this->assertSession()
      ->elementExists('xpath', '//tr[@id="display-row-block_1"]');
    // Ensure the view displays are in the expected order in configuration.
    $expected_display_order = [
      'default',
      'block_1',
      'page_1',
    ];
    $this->assertEquals($expected_display_order, array_keys(Views::getView($view['id'])->storage
      ->get('display')), 'The correct display names are present.');
    // Put the block display in front of the page display.
    $edit = [
      'displays[page_1][weight]' => 2,
      'displays[block_1][weight]' => 1,
    ];
    $this->submitForm($edit, 'Apply');
    $this->submitForm([], 'Save');
    $view = Views::getView($view['id']);
    $displays = $view->storage
      ->get('display');
    $this->assertEquals(0, $displays['default']['position'], 'Make sure the default display comes first.');
    $this->assertEquals(1, $displays['block_1']['position'], 'Make sure the block display comes before the page display.');
    $this->assertEquals(2, $displays['page_1']['position'], 'Make sure the page display comes after the block display.');
    // Ensure the view displays are in the expected order in configuration.
    $this->assertEquals($expected_display_order, array_keys($view->storage
      ->get('display')), 'The correct display names are present.');
  }
  
  /**
   * Tests disabling of a display.
   */
  public function testDisableDisplay() {
    $view = $this->randomView();
    $path_prefix = 'admin/structure/views/view/' . $view['id'] . '/edit';
    // Verify that the disabled display css class does not appear after initial
    // adding of a view.
    $this->drupalGet($path_prefix);
    $this->assertSession()
      ->elementNotExists('xpath', "//div[contains(@class, 'views-display-disabled')]");
    $this->assertSession()
      ->buttonExists('edit-displays-settings-settings-content-tab-content-details-top-actions-disable');
    $this->assertSession()
      ->buttonNotExists('edit-displays-settings-settings-content-tab-content-details-top-actions-enable');
    // Verify that the disabled display css class appears once the display is
    // marked as such.
    $this->submitForm([], 'Disable Page');
    $this->assertSession()
      ->elementExists('xpath', "//div[contains(@class, 'views-display-disabled')]");
    $this->assertSession()
      ->buttonNotExists('edit-displays-settings-settings-content-tab-content-details-top-actions-disable');
    $this->assertSession()
      ->buttonExists('edit-displays-settings-settings-content-tab-content-details-top-actions-enable');
    // Verify that the disabled display css class does not appears once the
    // display is enabled again.
    $this->submitForm([], 'Enable Page');
    $this->assertSession()
      ->elementNotExists('xpath', "//div[contains(@class, 'views-display-disabled')]");
  }
  
  /**
   * Tests views_ui_views_plugins_display_alter is altering plugin definitions.
   */
  public function testDisplayPluginsAlter() {
    $definitions = Views::pluginManager('display')->getDefinitions();
    $expected = [
      'route_name' => 'entity.view.edit_form',
      'route_parameters_names' => [
        'view' => 'id',
      ],
    ];
    // Test the expected views_ui array exists on each definition.
    foreach ($definitions as $definition) {
      $this->assertSame($expected, $definition['contextual links']['entity.view.edit_form'], 'Expected views_ui array found in plugin definition.');
    }
  }
  
  /**
   * Tests display areas.
   */
  public function testDisplayAreas() {
    // Show the advanced column.
    $this->config('views.settings')
      ->set('ui.show.advanced_column', TRUE)
      ->save();
    // Add a new data display to the view.
    $view = Views::getView('test_display');
    $view->storage
      ->addDisplay('display_no_area_test');
    $view->save();
    $this->drupalGet('admin/structure/views/view/test_display/edit/display_no_area_test_1');
    $areas = [
      'header',
      'footer',
      'empty',
    ];
    // Assert that the expected text is found in each area category.
    foreach ($areas as $type) {
      $this->assertSession()
        ->elementTextEquals('xpath', "//div[contains(@class, '{$type}')]/div", "The selected display type does not use {$type} plugins");
    }
  }
  
  /**
   * Tests the link-display setting.
   */
  public function testLinkDisplay() {
    // Test setting the link display in the UI form.
    $path = 'admin/structure/views/view/test_display/edit/block_1';
    $link_display_path = 'admin/structure/views/nojs/display/test_display/block_1/link_display';
    // Test the link text displays 'None' and not 'Block 1'
    $this->drupalGet($path);
    $this->assertSession()
      ->elementTextEquals('xpath', "//a[contains(@href, '{$link_display_path}')]", 'None');
    $this->drupalGet($link_display_path);
    $this->assertSession()
      ->checkboxChecked('edit-link-display-0');
    // Test the default radio option on the link display form.
    $this->drupalGet($link_display_path);
    $this->submitForm([
      'link_display' => 'page_1',
    ], 'Apply');
    // The form redirects to the default display.
    $this->drupalGet($path);
    // Test that the link option summary shows the right linked display.
    $this->assertSession()
      ->elementTextEquals('xpath', "//a[contains(@href, '{$link_display_path}')]", 'Page');
    $this->drupalGet($link_display_path);
    $this->submitForm([
      'link_display' => 'custom_url',
      'link_url' => 'a-custom-url',
    ], 'Apply');
    // The form redirects to the default display.
    $this->drupalGet($path);
    $this->assertSession()
      ->linkExists('Custom URL', 0, 'The link option has custom URL as summary.');
    // Test the default link_url value for new display
    $this->submitForm([], 'Add Block');
    $this->assertSession()
      ->addressEquals('admin/structure/views/view/test_display/edit/block_2');
    $this->clickLink('Custom URL');
    $this->assertSession()
      ->fieldValueEquals('link_url', 'a-custom-url');
  }
  
  /**
   * Tests that the view status is correctly reflected on the edit form.
   */
  public function testViewStatus() {
    $view = $this->randomView();
    $id = $view['id'];
    // The view should initially have the enabled class on its form wrapper.
    $this->drupalGet('admin/structure/views/view/' . $id);
    $this->assertSession()
      ->elementExists('xpath', "//div[contains(@class, 'views-edit-view') and contains(@class, 'enabled')]");
    $view = Views::getView($id);
    $view->storage
      ->disable()
      ->save();
    // The view should now have the disabled class on its form wrapper.
    $this->drupalGet('admin/structure/views/view/' . $id);
    $this->assertSession()
      ->elementExists('xpath', "//div[contains(@class, 'views-edit-view') and contains(@class, 'disabled')]");
  }
  
  /**
   * Ensures that no XSS is possible for buttons.
   */
  public function testDisplayTitleInButtonsXss() {
    $xss_markup = '"><script>alert(123)</script>';
    $view = $this->randomView();
    $view = View::load($view['id']);
    \Drupal::configFactory()->getEditable('views.settings')
      ->set('ui.show.default_display', TRUE)
      ->save();
    foreach ([
      $xss_markup,
      '&quot;><script>alert(123)</script>',
    ] as $input) {
      $display =& $view->getDisplay('page_1');
      $display['display_title'] = $input;
      $view->save();
      $this->drupalGet("admin/structure/views/view/{$view->id()}");
      $escaped = views_ui_truncate($input, 25);
      $this->assertSession()
        ->assertEscaped($escaped);
      $this->assertSession()
        ->responseNotContains($xss_markup);
      $this->drupalGet("admin/structure/views/view/{$view->id()}/edit/page_1");
      $this->assertSession()
        ->assertEscaped("View {$escaped}");
      $this->assertSession()
        ->responseNotContains("View {$xss_markup}");
      $this->assertSession()
        ->assertEscaped("Duplicate {$escaped}");
      $this->assertSession()
        ->responseNotContains("Duplicate {$xss_markup}");
      $this->assertSession()
        ->assertEscaped("Delete {$escaped}");
      $this->assertSession()
        ->responseNotContains("Delete {$xss_markup}");
    }
  }
  
  /**
   * Tests the action links on the edit display UI.
   */
  public function testActionLinks() {
    // Change the display title of a display so it contains characters that will
    // be escaped when rendered.
    $display_title = "'<test>'";
    $this->drupalGet('admin/structure/views/view/test_display');
    $display_title_path = 'admin/structure/views/nojs/display/test_display/block_1/display_title';
    $this->drupalGet($display_title_path);
    $this->submitForm([
      'display_title' => $display_title,
    ], 'Apply');
    // Ensure that the title is escaped as expected.
    $this->assertSession()
      ->assertEscaped($display_title);
    $this->assertSession()
      ->responseNotContains($display_title);
    // Ensure that the dropdown buttons are displayed correctly.
    $this->assertSession()
      ->buttonExists('Duplicate ' . $display_title);
    $this->assertSession()
      ->buttonExists('Delete ' . $display_title);
    $this->assertSession()
      ->buttonExists('Disable ' . $display_title);
    $this->assertSession()
      ->buttonNotExists('Enable ' . $display_title);
    // Disable the display so we can test the rendering of the "Enable" button.
    $this->submitForm([], 'Disable ' . $display_title);
    $this->assertSession()
      ->buttonExists('Enable ' . $display_title);
    $this->assertSession()
      ->buttonNotExists('Disable ' . $display_title);
    // Ensure that the title is escaped as expected.
    $this->assertSession()
      ->assertEscaped($display_title);
    $this->assertSession()
      ->responseNotContains($display_title);
  }
  
  /**
   * Tests that the override option is hidden when it's not needed.
   */
  public function testHideDisplayOverride() {
    // Test that the override option appears with two displays.
    $this->drupalGet('admin/structure/views/nojs/handler/test_display/page_1/field/title');
    $this->assertSession()
      ->pageTextContains('All displays');
    // Remove a display and test if the override option is hidden.
    $this->drupalGet('admin/structure/views/view/test_display/edit/block_1');
    $this->submitForm([], 'Delete Block');
    $this->submitForm([], 'Save');
    $this->drupalGet('admin/structure/views/nojs/handler/test_display/page_1/field/title');
    $this->assertSession()
      ->pageTextNotContains('All displays');
    // Test that the override option is shown when default display is on.
    \Drupal::configFactory()->getEditable('views.settings')
      ->set('ui.show.default_display', TRUE)
      ->save();
    $this->drupalGet('admin/structure/views/nojs/handler/test_display/page_1/field/title');
    $this->assertSession()
      ->pageTextContains('All displays');
    // Test that the override option is shown if the current display is
    // overridden so that the option to revert is available.
    $this->submitForm([
      'override[dropdown]' => 'page_1',
    ], 'Apply');
    \Drupal::configFactory()->getEditable('views.settings')
      ->set('ui.show.default_display', FALSE)
      ->save();
    $this->drupalGet('admin/structure/views/nojs/handler/test_display/page_1/field/title');
    $this->assertSession()
      ->pageTextContains('Revert to default');
  }

}