Layout::getContexts in core/modules/layout/includes/layout.class.inc

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

LayoutContext::label in core/modules/layout/plugins/context/layout_context.inc

Assemble a human-readable label of this object.

LayoutContext::setDataFromRouter in core/modules/layout/plugins/context/layout_context.inc

Set the context data from the router item.

LayoutContext::setDataFromRouterMap in core/modules/layout/plugins/context/layout_context.inc

Set the context data from the router item map.

layout_contexts_form_element in core/modules/layout/layout.admin.inc

Partial form to generate a select list for selecting context.

layout_path_load in core/modules/layout/layout.module

Menu loader callback; Convert %layout_path placeholders to loaded objects.