/**
*
*/
protected function applyContexts(ConditionPluginCollection &$conditions, $logic) {
$have_1_testable_condition = FALSE;
foreach ($conditions as $id => $condition) {
if ($condition instanceof ContextAwarePluginInterface) {
try {
$contexts = $this->contextRepository->getRuntimeContexts(array_values($condition->getContextMapping()));
$this->contextHandler->applyContextMapping($condition, $contexts);
$have_1_testable_condition = TRUE;
}
catch (ContextException $e) {
if ($logic == 'and') {
// Logic is all and found condition with contextException.
return FALSE;
}
$conditions->removeInstanceId($id);
}
}
else {
$have_1_testable_condition = TRUE;
}
}
if ($logic == 'or' && !$have_1_testable_condition) {
return FALSE;
}
return TRUE;
}
/**
* {@inheritdoc}
*/
protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account)
{
/** @var \Drupal\block\BlockInterface $entity */
if ($operation != 'view') {
return parent::checkAccess($entity, $operation, $account);
}
// Don't grant access to disabled blocks.
if (!$entity->status()) {
return AccessResult::forbidden()->addCacheableDependency($entity);
} else {
$conditions = [];
$missing_context = FALSE;
foreach ($entity->getVisibilityConditions() as $condition_id => $condition) {
if ($condition instanceof ContextAwarePluginInterface) {
try {
$contexts = $this->contextRepository->getRuntimeContexts(array_values($condition->getContextMapping()));
$this->contextHandler->applyContextMapping($condition, $contexts);
} catch (ContextException $e) {
$missing_context = TRUE;
}
}
$conditions[$condition_id] = $condition;
}
if ($missing_context) {
// If any context is missing then we might be missing cacheable
// metadata, and don't know based on what conditions the block is
// accessible or not. For example, blocks that have a node type
// condition will have a missing context on any non-node route like the
// frontpage.
// @todo Avoid setting max-age 0 for some or all cases, for example by
// treating available contexts without value differently in
// https://www.drupal.org/node/2521956.
$access = AccessResult::forbidden()->setCacheMaxAge(0);
} elseif ($this->resolveConditions($conditions, 'and') !== FALSE) {
// Delegate to the plugin.
$block_plugin = $entity->getPlugin();
try {
if ($block_plugin instanceof ContextAwarePluginInterface) {
$contexts = $this->contextRepository->getRuntimeContexts(array_values($block_plugin->getContextMapping()));
$this->contextHandler->applyContextMapping($block_plugin, $contexts);
}
$access = $block_plugin->access($account, TRUE);
} catch (ContextException $e) {
// Setting access to forbidden if any context is missing for the same
// reasons as with conditions (described in the comment above).
// @todo Avoid setting max-age 0 for some or all cases, for example by
// treating available contexts without value differently in
// https://www.drupal.org/node/2521956.
$access = AccessResult::forbidden()->setCacheMaxAge(0);
}
} else {
$access = AccessResult::forbidden();
}
$this->mergeCacheabilityFromConditions($access, $conditions);
// Ensure that access is evaluated again when the block changes.
return $access->addCacheableDependency($entity);
}
}
/**
* Build the mega menu link/content tree.
*
* @param MegaMenuInterface $mega_menu
*
* @return array
*/
private function buildMegaMenuTree(MegaMenuInterface $mega_menu)
{
$tree = $this->loadMenuTree($mega_menu->getTargetMenu());
$build = $this->menuLinkTree->build($tree);
$build['#mega_menu'] = $mega_menu;
$cacheability = CacheableMetadata::createFromRenderArray($build);
$cacheability->addCacheableDependency($mega_menu);
// Add content from the mega menus to the link tree.
foreach ($build['#items'] as $item_key => $item) {
$safe_item_key = str_replace('.', '_', $item_key);
$layout = $mega_menu->getLinkLayout($safe_item_key);
if ($layout === MegaMenuInterface::NO_LAYOUT) {
continue;
}
$build['#items'][$item_key]['attributes']['data-mega-menu-content-target'] = $item_key;
/** @var LayoutInterface $layout_plugin */
$layout_plugin = $this->layoutPluginManager->createInstance($layout);
$plugin_definition = $layout_plugin->getPluginDefinition();
// Build an array of the region names in the right order.
$empty = array_fill_keys(array_keys($plugin_definition['region_names']), []);
$full = $mega_menu->getBlocksByLink($safe_item_key)->getAllByRegion();
// Merge it with the actual values to maintain the ordering.
$block_assignments = array_intersect_key(array_merge($empty, $full), $empty);
$build['#items'][$item_key]['content'] = ['#prefix' => '<div data-mega-menu-content="' . $item_key . '" class="mega-menu-content">', '#suffix' => '</div>', '#theme' => $plugin_definition['theme'], '#settings' => [], '#layout' => $plugin_definition];
if (isset($plugin_definition['library'])) {
$build['#items'][$item_key]['content']['#attached']['library'][] = $plugin_definition['library'];
}
foreach ($block_assignments as $region => $blocks) {
$build['#items'][$item_key]['content'][$region] = [];
/** @var \Drupal\Core\Block\BlockPluginInterface[] $blocks */
foreach ($blocks as $block_id => $block) {
if ($block instanceof ContextAwarePluginInterface) {
$contexts = $this->contextRepository->getRuntimeContexts($block->getContextMapping());
$this->contextHandler->applyContextMapping($block, $contexts);
}
// Make sure the user is allowed to view the block.
$access = $block->access($this->account, TRUE);
$cacheability->addCacheableDependency($access);
// If the user is not allowed then do not render the block.
if (!$access->isAllowed()) {
continue;
}
$configuration = $block->getConfiguration();
// Create the render array for the block as a whole.
// @see template_preprocess_block().
$block_build = ['#theme' => 'block', '#attributes' => [], '#weight' => $configuration['weight'], '#configuration' => $configuration, '#plugin_id' => $block->getPluginId(), '#base_plugin_id' => $block->getBaseId(), '#derivative_plugin_id' => $block->getDerivativeId(), '#block_plugin' => $block, '#pre_render' => [[$this, 'preRenderBlock']], '#cache' => ['keys' => ['mega_menu', $mega_menu->id(), 'block', $block_id], 'tags' => Cache::mergeTags($mega_menu->getCacheTags(), $block->getCacheTags()), 'contexts' => $block->getCacheContexts(), 'max-age' => $block->getCacheMaxAge()]];
$build['#items'][$item_key]['content'][$region][$block_id] = $block_build;
$cacheability->addCacheableDependency($block);
}
}
}
$cacheability->applyTo($build);
return $build;
}
