/**
* Returns instance of the layout plugin used by this page variant.
*
* @return \Drupal\layout\Plugin\Layout\LayoutInterface
* Layout plugin instance.
*/
public function getLayout()
{
if (!isset($this->layout)) {
$this->layout = Layout::layoutPluginManager()->createInstance($this->configuration['layout'], array());
}
return $this->layout;
}
/**
* {@inheritdoc}
*/
public function blockForm($form, FormStateInterface $form_state)
{
// Fish the page object from the form args.
// Prevent serialization error.
$form['admin_label']['#markup'] = (string) $form['admin_label']['#markup'];
foreach ($form_state->getBuildInfo()['args'] as $arg) {
if ($arg instanceof Page) {
$this->page = $arg->getExecutable();
}
}
$block_plugins = \Drupal::service('plugin.manager.block')->getDefinitionsForContexts($this->getContexts());
$block_options = array();
foreach ($block_plugins as $plugin_id => $block_definition) {
$block_options[(string) $block_definition['category']][$plugin_id] = (string) $block_definition['admin_label'];
}
$widget_blocks = $form_state->hasValue(array('settings', 'blocks')) ? $form_state->getValue(array('settings', 'blocks')) : $this->configuration['blocks'];
$layout = $form_state->hasValue(array('settings', 'layout')) ? $form_state->getValue(array('settings', 'layout')) : $this->configuration['layout'];
$classes = $form_state->hasValue(array('settings', 'classes')) ? $form_state->getValue(array('settings', 'classes')) : $this->configuration['classes'];
$ajax_properties = array('#ajax' => array('callback' => array($this, 'widgetBlockAJAXCallback'), 'wrapper' => 'widget-block-wrapper', 'effect' => 'fade'));
$form = parent::blockForm($form, $form_state);
$layouts = array();
foreach (Layout::layoutPluginManager()->getDefinitions() as $id => $definition) {
if ($definition['type'] == 'partial') {
$layouts[$id] = $definition['label'];
}
}
$form['layout'] = array('#type' => 'select', '#required' => TRUE, '#title' => t('Widget layout'), '#options' => $layouts, '#default_value' => $layout) + $ajax_properties;
$form['blocks'] = array('#type' => 'container', '#prefix' => '<div id="widget-block-wrapper">', '#suffix' => '</div>');
$form['classes'] = array('#type' => 'textfield', '#title' => t('CSS Classes'), '#default_value' => $classes);
if (!$layout) {
return $form;
}
if ($layout != $this->configuration['layout']) {
$this->configuration['layout'] = $layout;
$this->configuration['regions'] = NULL;
$this->layoutRegionBag = NULL;
}
foreach ($this->getLayoutRegions() as $region_id => $region_definition) {
$block_config = isset($widget_blocks[$region_id]) ? $widget_blocks[$region_id] : array();
$form['blocks'][$region_id] = array('#type' => 'details', '#title' => $region_definition->getConfiguration()['label'], '#open' => TRUE);
$form['blocks'][$region_id]['id'] = array('#type' => 'select', '#title' => t('Block'), '#options' => $block_options, '#default_value' => isset($block_config['id']) ? $block_config['id'] : NULL, '#empty_option' => t('- None -')) + $ajax_properties;
$form['blocks'][$region_id]['region'] = array('#type' => 'value', '#value' => $region_id);
if (!empty($block_config['id'])) {
$block_plugin = \Drupal::service('plugin.manager.block')->createInstance($block_config['id'], $block_config);
$form['blocks'][$region_id] += $block_plugin->buildConfigurationForm(array(), $form_state);
if ($block_plugin instanceof ContextAwarePluginInterface) {
$form['blocks'][$region_id]['context_mapping'] = $this->addContextAssignmentElement($block_plugin, $this->getContexts());
}
// @todo Support per-block caching and visibility. Breaks UI right now.
unset($form['blocks'][$region_id]['cache']);
unset($form['blocks'][$region_id]['visibility']);
unset($form['blocks'][$region_id]['visibility_tabs']);
} else {
//unset($form['blocks'][$region_id]);
}
}
return $form;
}
/**
* Returns current Layout plugin instance.
*
* @todo: allow for configuration to be saved (not just the pluginId).
*
* @return \Drupal\layout\Plugin\Layout\LayoutInterface
*/
public function getLayout($reset = FALSE)
{
if (isset($this->layout) && !$reset) {
return $this->layout;
}
$template_plugin_id = $this->getLayoutId();
if (!$template_plugin_id) {
throw new \Exception('Missing layout id');
}
$this->layout = Layout::layoutPluginManager()->createInstance($template_plugin_id);
// @todo: we need to get some kind of reference for the nested plugins, see views' PluginBase::init().
$this->layout->pageVariant = $this;
return $this->layout;
}