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docs/middleware/contextualizers/layout.js

24 lines
767 B
JavaScript

const layouts = require('../../lib/layouts')
module.exports = function layoutContext (req, res, next) {
if (!req.context.page) return next()
const layoutOptsByType = {
// Layouts can be specified with a `layout` frontmatter value.
// Any invalid layout values will be caught by frontmatter schema validation.
string: req.context.page.layout,
// A `layout: false` value means use no layout.
boolean: '',
// For all other files (like articles and the homepage), use the `default` layout.
undefined: 'default'
}
const layoutName = layoutOptsByType[typeof (req.context.page.layout)]
// Attach to the context object
req.context.currentLayoutName = layoutName
req.context.currentLayout = layouts[layoutName]
return next()
}