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author | Samy Pessé <samypesse@gmail.com> | 2015-01-19 09:47:36 +0100 |
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committer | Samy Pessé <samypesse@gmail.com> | 2015-01-19 09:47:36 +0100 |
commit | ec586dd3cdf06e9567f5d3e4961022ddc3c94778 (patch) | |
tree | cc7825ab73110b4e6fbedee404427b052edffa17 /lib/parse/navigation.js | |
parent | 80432161708357bdcf0e00533d9e6d327636dab6 (diff) | |
download | gitbook-ec586dd3cdf06e9567f5d3e4961022ddc3c94778.zip gitbook-ec586dd3cdf06e9567f5d3e4961022ddc3c94778.tar.gz gitbook-ec586dd3cdf06e9567f5d3e4961022ddc3c94778.tar.bz2 |
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Diffstat (limited to 'lib/parse/navigation.js')
-rw-r--r-- | lib/parse/navigation.js | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/lib/parse/navigation.js b/lib/parse/navigation.js deleted file mode 100644 index ae4eb9d..0000000 --- a/lib/parse/navigation.js +++ /dev/null @@ -1,64 +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, then add in default README node if ndeeded etc ... - var navNodes = flattenChapters(summary.chapters); - var prevNodes = [null].concat(navNodes.slice(0, -1)); - var nextNodes = navNodes.slice(1).concat([null]); - - // Mapping of prev/next for a give path - var mapping = _.chain(_.zip(navNodes, prevNodes, nextNodes)) - .map(function(nodes) { - var current = nodes[0], prev = nodes[1], next = nodes[2]; - - // Skip if no path - if(!current.path) return null; - - return [current.path, { - title: current.title, - prev: prev, - next: next, - level: current.level, - }]; - }) - .filter() - .object() - .value(); - - // Filter for only files we want - if(files) { - return _.pick(mapping, files); - } - - return mapping; -} - - -// Exports -module.exports = navigation; |