/**
* Updates the current Panels display based on the changes done in our app.
*
* @param \Drupal\panels\Plugin\DisplayVariant\PanelsDisplayVariant $panels_display
* The current Panels display.
* @param array $layout_model
* The decoded LayoutModel from our App.
*
* @return \Drupal\panels\Plugin\DisplayVariant\PanelsDisplayVariant
*/
private static function updatePanelsDisplay(PanelsDisplayVariant $panels_display, array $layout_model)
{
// Set our weight and region based on the metadata in our Backbone app.
foreach ($layout_model['regionCollection'] as $region) {
$weight = 0;
foreach ($region['blockCollection'] as $block) {
/** @var \Drupal\Core\Block\BlockBase $block_instance */
$block_instance = $panels_display->getBlock($block['uuid']);
$block_instance->setConfigurationValue('region', $region['name']);
$block_instance->setConfigurationValue('weight', ++$weight);
$panels_display->updateBlock($block['uuid'], $block_instance->getConfiguration());
}
}
return $panels_display;
}
/**
* Loads or creates a Block Plugin instance suitable for rendering or testing.
*
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
*
* @return \Drupal\Core\Block\BlockPluginInterface
* The Block Plugin instance.
*/
protected function getBlockInstance(FormStateInterface $form_state)
{
// If a UUID is provided, the Block should already exist.
if ($uuid = $form_state->getValue('uuid')) {
// If a temporary configuration for this variant exists, use it.
$temp_store_key = $this->panelsDisplay->id();
if ($variant_config = $this->tempStore->get($temp_store_key)) {
$this->panelsDisplay->setConfiguration($variant_config);
}
// Load the existing Block instance.
$block_instance = $this->panelsDisplay->getBlock($uuid);
} else {
// Create an instance of this Block plugin.
/** @var \Drupal\Core\Block\BlockBase $block_instance */
$block_instance = $this->blockManager->createInstance($form_state->getValue('plugin_id'));
}
return $block_instance;
}
/**
* Updates the current Panels display based on the changes done in our app.
*
* @param \Drupal\panels\Plugin\DisplayVariant\PanelsDisplayVariant $panels_display
* The current Panels display.
* @param array $layout_model
* The decoded LayoutModel from our App.
*
* @return \Symfony\Component\HttpFoundation\JsonResponse
*/
protected function updatePanelsDisplay(PanelsDisplayVariant $panels_display, array $layout_model)
{
// Set our weight and region based on the metadata in our Backbone app.
foreach ($layout_model['regionCollection'] as $region) {
$weight = 0;
foreach ($region['blockCollection'] as $block) {
/** @var \Drupal\Core\Block\BlockBase $block_instance */
$block_instance = $panels_display->getBlock($block['uuid']);
$block_instance->setConfigurationValue('region', $region['name']);
$block_instance->setConfigurationValue('weight', ++$weight);
$panels_display->updateBlock($block['uuid'], $block_instance->getConfiguration());
}
}
// Remove blocks that need removing.
// @todo We should do this on the fly instead of at on save.
foreach ($layout_model['deletedBlocks'] as $uuid) {
$panels_display->removeBlock($uuid);
}
// Save the variant and remove temp storage.
$this->savePanelsDisplay($panels_display, FALSE);
return new JsonResponse(['deletedBlocks' => []]);
}
