function Layout::getContexts

Return all contexts (from both the layout and menu item) for this Layout.

Include a specific list of contexts based on how they are used.

This is loaded from the list of constants provided in the LayoutContext class, which includes the following:

• USAGE_TYPE_ALL - All contexts from all possible sources.
• USAGE_TYPE_CUSTOM - Contexts manually specified in configuration.
• USAGE_TYPE_MENU - Contexts automatically provided from a menu path.
• USAGE_TYPE_SYSTEM - Global contexts such as logged-in user.
• USAGE_TYPE_RELATIONSHIP - Contexts added through relationships.

Return value

LayoutContext[]:

File

core/modules/layout/includes/layout.class.inc, line 799

Class for loading, modifying, and executing a layout.

Class

Layout

@file Class for loading, modifying, and executing a layout.

Code

function getContexts($include_types = LayoutContext::USAGE_TYPE_ALL) {
  $contexts_cache = &backdrop_static(__METHOD__, array());
  if (isset($contexts_cache[$this->name])) {
    return $this->getContextsByType($contexts_cache[$this->name], $include_types);
  }

  // Initialize a list of contexts if not defined.
  if (is_null($this->contexts)) {
    $this->contexts = array();
  }

  // Load objects for stored contexts.
  foreach ($this->contexts as $key => $context) {
    if (!isset($context->position) && !is_object($context->data)) {
      $context_info = layout_get_context_info($context->plugin);
      if (isset($context_info['load callback'])) {
        $load_arguments = array_values($context->settings);
        $context_data = call_user_func_array($context_info['load callback'], $load_arguments);
        $context->setData($context_data);
      }
    }
  }

  // Load contexts from paths or menu items if available.
  if ($this->menu_item || $this->path) {
    if ($this->menu_item) {
      $this->contexts += $this->menu_item->getContexts();
    }
    else {
      $this->contexts += layout_context_required_by_path($this->path);
    }
  }

  // Load contexts from relationships.
  if ($include_types & LayoutContext::USAGE_TYPE_RELATIONSHIP) {
    $this->contexts += $this->getContextsFromRelationships();
  }

  // Add on the current user context, which is always available.
  if (!isset($this->contexts['current_user'])) {
    $this->contexts['current_user'] = layout_current_user_context();
  }

  // Add on the overrides path context, which is always available.
  if (empty($this->menu_item) && !isset($this->contexts['overrides_path'])) {
    $this->contexts['overrides_path'] = layout_create_context('overrides_path', array(
      'name' => 'overrides_path',
      'locked' => TRUE,
    ));
  }

  $contexts_cache[$this->name] = $this->contexts;

  return $this->getContextsByType($this->contexts, $include_types);
}