Merge pull request #1285 from GitbookIO/api/summary

[WIP] Api for plugins to access summary

1 files changed, 51 insertions, 0 deletions

diff --git a/lib/api/encodeSummary.js b/lib/api/encodeSummary.js
new file mode 100644
index 0000000..0d66ded
--- /dev/null
+++ b/lib/api/encodeSummary.js
@@ -0,0 +1,51 @@
+var encodeSummaryArticle = require('../json/encodeSummaryArticle');
+
+/**
+    Encode summary to provide an API to plugin
+
+    @param {Output} output
+    @param {Config} config
+    @return {Object}
+*/
+function encodeSummary(output, summary) {
+    var result = {
+        /**
+            Iterate over the summary, it stops when the "iter" returns false
+
+            @param {Function} iter
+        */
+        walk: function (iter) {
+            summary.getArticle(function(article) {
+                var jsonArticle = encodeSummaryArticle(article, false);
+
+                return iter(jsonArticle);
+            });
+        },
+
+        /**
+            Get an article by its level
+
+            @param {String} level
+            @return {Object}
+        */
+        getArticleByLevel: function(level) {
+            var article = summary.getByLevel(level);
+            return (article? encodeSummaryArticle(article) : undefined);
+        },
+
+        /**
+            Get an article by its path
+
+            @param {String} level
+            @return {Object}
+        */
+        getArticleByPath: function(level) {
+            var article = summary.getByPath(level);
+            return (article? encodeSummaryArticle(article) : undefined);
+        }
+    };
+
+    return result;
+}
+
+module.exports = encodeSummary;