class LayoutBuilderBlocksTest

class LayoutBuilderBlocksTest extends LayoutBuilderTestBase {
    
    /**
     * Tests that block plugins can define custom attributes and contextual links.
     */
    public function testPluginsProvidingCustomAttributesAndContextualLinks() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->drupalLogin($this->drupalCreateUser([
            'access contextual links',
            'configure any layout',
            'administer node display',
        ]));
        $this->drupalGet('admin/structure/types/manage/bundle_with_section_field/display/default');
        $this->submitForm([
            'layout[enabled]' => TRUE,
        ], 'Save');
        $page->clickLink('Manage layout');
        $page->clickLink('Add section');
        $page->clickLink('Layout Builder Test Plugin');
        $page->pressButton('Add section');
        $page->clickLink('Add block');
        $page->clickLink('Test Attributes');
        $page->pressButton('Add block');
        $page->pressButton('Save layout');
        $this->drupalGet('node/1');
        $assert_session->elementExists('css', '.attribute-test-class');
        $assert_session->elementExists('css', '[custom-attribute=test]');
        $assert_session->elementExists('css', 'div[data-contextual-id*="layout_builder_test"]');
    }
    
    /**
     * Tests preview-aware layout & block plugins.
     */
    public function testPreviewAwarePlugins() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->drupalLogin($this->drupalCreateUser([
            'configure any layout',
            'administer node display',
        ]));
        $this->drupalGet('admin/structure/types/manage/bundle_with_section_field/display/default');
        $this->submitForm([
            'layout[enabled]' => TRUE,
        ], 'Save');
        $page->clickLink('Manage layout');
        $page->clickLink('Add section');
        $page->clickLink('Layout Builder Test Plugin');
        $page->pressButton('Add section');
        $page->clickLink('Add block');
        $page->clickLink('Preview-aware block');
        $page->pressButton('Add block');
        $assert_session->elementExists('css', '.go-birds-preview');
        $assert_session->pageTextContains('The block template is being previewed.');
        $assert_session->pageTextContains('This block is being rendered in preview mode.');
        $page->pressButton('Save layout');
        $this->drupalGet('node/1');
        $assert_session->elementNotExists('css', '.go-birds-preview');
        $assert_session->pageTextNotContains('The block template is being previewed.');
        $assert_session->pageTextContains('This block is being rendered normally.');
    }
    
    /**
     * {@inheritdoc}
     */
    public function testLayoutBuilderChooseBlocksAlter() : void {
        // See layout_builder_test_plugin_filter_block__layout_builder_alter().
        $assert_session = $this->assertSession();
        $this->drupalLogin($this->drupalCreateUser([
            'configure any layout',
            'administer node display',
            'administer node fields',
        ]));
        // From the manage display page, go to manage the layout.
        $this->drupalGet('admin/structure/types/manage/bundle_with_section_field/display/default');
        $this->submitForm([
            'layout[enabled]' => TRUE,
        ], 'Save');
        $assert_session->linkExists('Manage layout');
        $this->clickLink('Manage layout');
        // Add a new block.
        $this->clickLink('Add block');
        // Verify that blocks not modified are present.
        $assert_session->linkExists('Powered by Drupal');
        $assert_session->linkExists('Default revision');
        // Verify that blocks explicitly removed are not present.
        $assert_session->linkNotExists('Help');
        $assert_session->linkNotExists('Sticky at top of lists');
        $assert_session->linkNotExists('Main page content');
        $assert_session->linkNotExists('Page title');
        $assert_session->linkNotExists('Messages');
        $assert_session->linkNotExists('Help');
        $assert_session->linkNotExists('Tabs');
        $assert_session->linkNotExists('Primary admin actions');
        // Verify that Changed block is not present on first section.
        $assert_session->linkNotExists('Changed');
        // Go back to Manage layout.
        $this->drupalGet('admin/structure/types/manage/bundle_with_section_field/display/default');
        $this->clickLink('Manage layout');
        // Add a new section.
        $this->clickLink('Add section', 1);
        $assert_session->linkExists('Two column');
        $this->clickLink('Two column');
        $assert_session->buttonExists('Add section');
        $this->getSession()
            ->getPage()
            ->pressButton('Add section');
        // Add a new block to second section.
        $this->clickLink('Add block', 1);
        // Verify that Changed block is present on second section.
        $assert_session->linkExists('Changed');
    }
    
    /**
     * Tests that deleting a View block used in Layout Builder works.
     */
    public function testDeletedView() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->drupalLogin($this->drupalCreateUser([
            'configure any layout',
            'administer node display',
        ]));
        $field_ui_prefix = 'admin/structure/types/manage/bundle_with_section_field';
        // Enable overrides.
        $this->drupalGet("{$field_ui_prefix}/display/default");
        $this->submitForm([
            'layout[enabled]' => TRUE,
        ], 'Save');
        $this->drupalGet("{$field_ui_prefix}/display/default");
        $this->submitForm([
            'layout[allow_custom]' => TRUE,
        ], 'Save');
        $this->drupalGet('node/1');
        $assert_session->linkExists('Layout');
        $this->clickLink('Layout');
        $this->clickLink('Add block');
        $this->clickLink('Test Block View');
        $page->pressButton('Add block');
        $assert_session->pageTextContains('Test Block View');
        $assert_session->elementExists('css', '.block-views-blocktest-block-view-block-1');
        $page->pressButton('Save');
        $assert_session->pageTextContains('Test Block View');
        $assert_session->elementExists('css', '.block-views-blocktest-block-view-block-1');
        View::load('test_block_view')->delete();
        $this->drupalGet('node/1');
        // Node can be loaded after deleting the View.
        $assert_session->pageTextContains(Node::load(1)->getTitle());
        $assert_session->pageTextNotContains('Test Block View');
    }
    
    /**
     * Tests the usage of placeholders for empty blocks.
     *
     * @see \Drupal\Core\Render\PreviewFallbackInterface::getPreviewFallbackString()
     * @see \Drupal\layout_builder\EventSubscriber\BlockComponentRenderArray::onBuildRender()
     */
    public function testBlockPlaceholder() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->drupalLogin($this->drupalCreateUser([
            'configure any layout',
            'administer node display',
        ]));
        $field_ui_prefix = 'admin/structure/types/manage/bundle_with_section_field';
        $this->drupalGet("{$field_ui_prefix}/display/default");
        $this->submitForm([
            'layout[enabled]' => TRUE,
        ], 'Save');
        // Customize the default view mode.
        $this->drupalGet("{$field_ui_prefix}/display/default/layout");
        // Add a block whose content is controlled by state and is empty by default.
        $this->clickLink('Add block');
        $this->clickLink('Test block caching');
        $page->fillField('settings[label]', 'The block label');
        $page->pressButton('Add block');
        $block_content = 'I am content';
        $placeholder_content = 'Placeholder for the "The block label" block';
        // The block placeholder is displayed and there is no content.
        $assert_session->pageTextContains($placeholder_content);
        $assert_session->pageTextNotContains($block_content);
        // Set block content and reload the page.
        \Drupal::state()->set('block_test.content', $block_content);
        $this->getSession()
            ->reload();
        // The block placeholder is no longer displayed and the content is visible.
        $assert_session->pageTextNotContains($placeholder_content);
        $assert_session->pageTextContains($block_content);
    }
    
    /**
     * Tests the ability to use a specified block label for field blocks.
     */
    public function testFieldBlockLabel() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->drupalLogin($this->drupalCreateUser([
            'configure any layout',
            'administer node display',
        ]));
        $field_ui_prefix = 'admin/structure/types/manage/bundle_with_section_field';
        $this->drupalGet("{$field_ui_prefix}/display/default");
        $this->submitForm([
            'layout[enabled]' => TRUE,
        ], 'Save');
        // Customize the default view mode.
        $this->drupalGet("{$field_ui_prefix}/display/default/layout");
        // Add a body block whose label will be overridden.
        $this->clickLink('Add block');
        $this->clickLink('Body');
        // Enable the Label Display and set the Label to a modified field
        // block label.
        $modified_field_block_label = 'Modified Field Block Label';
        $page->checkField('settings[label_display]');
        $page->fillField('settings[label]', $modified_field_block_label);
        // Save the block and layout.
        $page->pressButton('Add block');
        $page->pressButton('Save layout');
        // Revisit the default layout view mode page.
        $this->drupalGet("{$field_ui_prefix}/display/default/layout");
        // The modified field block label is displayed.
        $assert_session->pageTextContains($modified_field_block_label);
    }
    
    /**
     * Tests the Block UI when Layout Builder is installed.
     */
    public function testBlockUiListing() : void {
        $assert_session = $this->assertSession();
        $page = $this->getSession()
            ->getPage();
        $this->drupalLogin($this->drupalCreateUser([
            'administer blocks',
        ]));
        $this->drupalGet('admin/structure/block');
        $page->clickLink('Place block');
        // Ensure that blocks expected to appear are available.
        $assert_session->pageTextContains('Test HTML block');
        $assert_session->pageTextContains('Block test');
        // Ensure that blocks not expected to appear are not available.
        $assert_session->pageTextNotContains('Body');
        $assert_session->pageTextNotContains('Content fields');
    }

}