Define specific action for toggling summary

theme/javascript/core/navigation.js

@@ -65,7 +65,6 @@ define([
 
             // Update state
             state.update($("html"));
-            // recover search keyword
             preparePage();
         })
         .fail(function (e) {

theme/javascript/core/sidebar.js

@@ -1,56 +1,51 @@
 define([
-    "jQuery",
-    "lodash",
-    "utils/storage",
-    "utils/platform",
-    "core/state"
+    'jQuery',
+    'lodash',
+    'utils/storage',
+    'utils/platform',
+    'core/state'
 ], function($, _, storage, platform, state) {
     // Toggle sidebar with or withour animation
-    var toggleSidebar = function(_state, animation) {
+    function toggleSidebar(_state, animation) {
         if (state != null && isOpen() == _state) return;
         if (animation == null) animation = true;
 
-        state.$book.toggleClass("without-animation", !animation);
-        state.$book.toggleClass("with-summary", _state);
+        state.$book.toggleClass('without-animation', !animation);
+        state.$book.toggleClass('with-summary', _state);
 
-        storage.set("sidebar", isOpen());
-    };
+        storage.set('sidebar', isOpen());
+    }
 
     // Return true if sidebar is open
-    var isOpen = function() {
-        return state.$book.hasClass("with-summary");
-    };
+    function isOpen() {
+        return state.$book.hasClass('with-summary');
+    }
 
     // Prepare sidebar: state and toggle button
-    var init = function() {
-        // Toggle summary
-        $(document).on("click", ".book-header .toggle-summary", function(e) {
-            e.preventDefault();
-            toggleSidebar();
-        });
-
+    function init() {
         // Init last state if not mobile
         if (!platform.isMobile) {
-            toggleSidebar(storage.get("sidebar", true), false);
+            toggleSidebar(storage.get('sidebar', true), false);
         }
-    };
+    }
 
     // Filter summary with a list of path
-    var filterSummary = function(paths) {
-        var $summary = $(".book-summary");
+    function filterSummary(paths) {
+        var $summary = $('.book-summary');
 
-        $summary.find("li").each(function() {
-            var path = $(this).data("path");
+        $summary.find('li').each(function() {
+            var path = $(this).data('path');
             var st = paths == null || _.contains(paths, path);
 
             $(this).toggle(st);
-            if (st) $(this).parents("li").show();
+            if (st) $(this).parents('li').show();
         });
-    };
+    }
 
     return {
         init: init,
+        isOpen: isOpen,
         toggle: toggleSidebar,
         filter: filterSummary
-    }
+    };
 });

theme/javascript/gitbook.js

@@ -26,6 +26,16 @@ keyboard, navigation, progress, sidebar, toolbar){
         // Init navigation
         navigation.init();
 
+
+        // Add action to toggle sidebar
+        toolbar.createButton({
+            icon: 'fa fa-align-justify',
+            onClick: function(e) {
+                e.preventDefault();
+                sidebar.toggle();
+            }
+        });
+
         events.trigger('start', config);
     };