/**
* {@inheritdoc}
*/
public function save(PanelsDisplayVariant $panels_display)
{
$id = $panels_display->getStorageId();
if ($id && ($page_variant = $this->loadPageVariant($id))) {
$variant_plugin = $page_variant->getVariantPlugin();
if (!$variant_plugin instanceof PanelsDisplayVariant) {
throw new \Exception("Page variant doesn't use a Panels display variant");
}
$variant_plugin->setConfiguration($panels_display->getConfiguration());
$page_variant->save();
} else {
throw new \Exception("Couldn't find page variant to store Panels display");
}
}
/**
* Compiles settings needed for the IPE to function.
*
* @param array $regions
* The render array representing regions.
* @param \Drupal\layout_plugin\Plugin\Layout\LayoutInterface $layout
* The current layout.
* @param \Drupal\panels\Plugin\DisplayVariant\PanelsDisplayVariant $panels_display
* The Panels display we are editing.
* @param bool $unsaved
* Whether or not there are unsaved changes.
*
* @return array|bool
* An associative array representing the contents of drupalSettings, or
* FALSE if there was an error.
*/
protected function getDrupalSettings(array $regions, LayoutInterface $layout, PanelsDisplayVariant $panels_display, $unsaved)
{
$settings = ['regions' => []];
// Add current block IDs to settings sorted by region.
foreach ($regions as $region => $blocks) {
$settings['regions'][$region] = ['name' => $region, 'label' => '', 'blocks' => []];
if (!$blocks) {
continue;
}
/** @var \Drupal\Core\Block\BlockPluginInterface[] $blocks */
foreach ($blocks as $block_uuid => $block) {
$configuration = $block->getConfiguration();
$setting = ['uuid' => $block_uuid, 'label' => $block->label(), 'id' => $block->getPluginId()];
$settings['regions'][$region]['blocks'][$block_uuid] = NestedArray::mergeDeep($configuration, $setting);
}
}
// Add the layout information.
$layout_definition = $layout->getPluginDefinition();
$settings['layout'] = ['id' => $layout->getPluginId(), 'label' => $layout_definition['label'], 'original' => true];
// Add the display variant's config.
$settings['panels_display'] = ['storage_type' => $panels_display->getStorageType(), 'storage_id' => $panels_display->getStorageId(), 'id' => $panels_display->id()];
// Inform the App of our saved state.
$settings['unsaved'] = $unsaved;
return $settings;
}
/**
* {@inheritdoc}
*/
public function build(PanelsDisplayVariant $panels_display)
{
// Check to see if the current user has permissions to use the IPE.
$has_permission = $this->account->hasPermission('access panels in-place editing') && $this->panelsStorage->access($panels_display->getStorageType(), $panels_display->getStorageId(), 'update', $this->account)->isAllowed();
// Attach the Panels In-place editor library based on permissions.
if ($has_permission) {
// This flag tracks whether or not there are unsaved changes.
$unsaved = FALSE;
// If a temporary configuration for this variant exists, use it.
$temp_store_key = $panels_display->id();
if ($variant_config = $this->tempStore->get($temp_store_key)) {
unset($variant_config['id']);
$panels_display->setConfiguration($variant_config);
// Indicate that the user is viewing un-saved changes.
$unsaved = TRUE;
}
$build = parent::build($panels_display);
$regions = $panels_display->getRegionAssignments();
$layout = $panels_display->getLayout();
foreach ($regions as $region => $blocks) {
// Wrap each region with a unique class and data attribute.
$region_name = Html::getClass("block-region-{$region}");
$build[$region]['#prefix'] = '<div class="' . $region_name . '" data-region-name="' . $region . '">';
$build[$region]['#suffix'] = '</div>';
if ($blocks) {
foreach ($blocks as $block_id => $block) {
$build[$region][$block_id]['#attributes']['data-block-id'] = $block_id;
}
}
}
// Attach the required settings and IPE.
$build['#attached']['library'][] = 'panels_ipe/panels_ipe';
$build['#attached']['drupalSettings']['panels_ipe'] = $this->getDrupalSettings($regions, $layout, $panels_display, $unsaved);
// Add our custom elements to the build.
$build['#prefix'] = '<div id="panels-ipe-content">';
$build['#suffix'] = '</div><div id="panels-ipe-tray"></div>';
} else {
$build = parent::build($panels_display);
}
return $build;
}
