From 114c4abcd1a751feaa96ebecdf814bb42ac1a44a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Samy=20Pess=C3=A9?= <samypesse@gmail.com>
Date: Thu, 14 Apr 2016 14:51:42 +0200
Subject: [PATCH] Add method for theme: template.getJSContext

---
 lib/output/website.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/output/website.js b/lib/output/website.js
index 3cf890e79..1eaf98a58 100644
--- a/lib/output/website.js
+++ b/lib/output/website.js
@@ -216,11 +216,24 @@ WebsiteOutput.prototype.outputMultilingualIndex = function() {
 // Render a template using nunjucks
 // Templates are stored in `_layouts` folders
 WebsiteOutput.prototype.render = function(tpl, context) {
+    var that = this;
     var filename = this.templateName(tpl);
 
     context = _.extend(context, {
         template: {
-            self: filename
+            self: filename,
+            getJSContext: function() {
+                return {
+                    page: _.omit(context.page, 'content'),
+                    config: context.config,
+                    file: context.file,
+                    gitbook: context.gitbook,
+                    basePath: location.normalize(that.resolveForPage(context.file.path, './')),
+                    book: {
+                        language: context.book.language
+                    }
+                };
+            }
         },
 
         plugins: {