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() : void {
        $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() : void {
        $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() : void {
        $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() : void {
        $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() : void {
        // 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() : void {
        // 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() : void {
        $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() : void {
        $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()}");
            $escaped = Unicode::truncate($input, 25, FALSE, TRUE);
            $this->assertSession()
                ->assertEscaped($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() : void {
        // 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() : void {
        // 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');
    }

}