diff options
Diffstat (limited to 'lib/utils/navigation.js')
-rw-r--r-- | lib/utils/navigation.js | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/lib/utils/navigation.js b/lib/utils/navigation.js deleted file mode 100644 index d07eb35..0000000 --- a/lib/utils/navigation.js +++ /dev/null @@ -1,79 +0,0 @@ -var _ = require("lodash"); - -// Cleans up an article/chapter object -// remove "articles" attributes -function clean(obj) { - return obj && _.omit(obj, ["articles"]); -} - -function flattenChapters(chapters) { - return _.reduce(chapters, function(accu, chapter) { - return accu.concat([clean(chapter)].concat(flattenChapters(chapter.articles))); - }, []); -} - -// Returns from a summary a map of -/* - { - "file/path.md": { - prev: ..., - next: ..., - }, - ... - } -*/ -function navigation(summary, files) { - // Support single files as well as list - files = _.isArray(files) ? files : (_.isString(files) ? [files] : null); - - // List of all navNodes - // Flatten chapters - var navNodes = flattenChapters(summary.chapters); - - // Mapping of prev/next for a give path - var mapping = _.chain(navNodes) - .map(function(current, i) { - var prev = null, next = null; - - // Skip if no path - if(!current.exists) return null; - - // Find prev - prev = _.chain(navNodes.slice(0, i)) - .reverse() - .find(function(node) { - return node.exists && !node.external; - }) - .value(); - - // Find next - next = _.chain(navNodes.slice(i+1)) - .find(function(node) { - return node.exists && !node.external; - }) - .value(); - - return [current.path, { - index: i, - title: current.title, - introduction: current.introduction, - prev: prev, - next: next, - level: current.level, - }]; - }) - .compact() - .object() - .value(); - - // Filter for only files we want - if(files) { - return _.pick(mapping, files); - } - - return mapping; -} - - -// Exports -module.exports = navigation; |