Split core and theme code

src/js/core/index.js

+module.exports = {
+    events:  require('./events'),
+    state:   require('./state'),
+    storage: require('./storage')
+};
\ No newline at end of file

src/js/main.js

 var $ = require('jquery');
 
-var storage = require('./storage');
-var dropdown = require('./dropdown');
-var events = require('./events');
-var state = require('./state');
-var keyboard = require('./keyboard');
-var navigation = require('./navigation');
-var sidebar = require('./sidebar');
-var toolbar = require('./toolbar');
+var storage = require('./core').storage;
+var events  = require('./core').events;
+var state   = require('./core').state;
 
+var theme = require('./theme');
 
 function start(config) {
-    // Init sidebar
-    sidebar.init();
-
-    // Init keyboard
-    keyboard.init();
-
-    // Bind dropdown
-    dropdown.init();
-
-    // Init navigation
-    navigation.init();
-
-
-    // Add action to toggle sidebar
-    toolbar.createButton({
-        index: 0,
-        icon: 'fa fa-align-justify',
-        onClick: function(e) {
-            e.preventDefault();
-            sidebar.toggle();
-        }
-    });
-
+    theme.init();
     events.trigger('start', config);
-    navigation.notify();
+    theme.navigation.notify();
 }
 
 // Export APIs for plugins
 var gitbook = {
-    start: start,
+    start:  start,
     events: events,
-    state: state,
-
-    // UI sections
-    toolbar: toolbar,
-    sidebar: sidebar,
+    state:  state,
 
     // Read/Write the localstorage
     storage: storage,
 
+    // UI sections
+    toolbar: theme.toolbar,
+    sidebar: theme.sidebar,
+
     // Create keyboard shortcuts
-    keyboard: keyboard
+    keyboard: theme.keyboard
 };
 
 
 // Modules mapping for plugins
 var MODULES = {
     'gitbook': gitbook,
-    'jquery': $
+    'jquery':  $
 };
 
 window.gitbook = gitbook;

src/js/theme/index.js

+var dropdown =   require('./dropdown');
+var keyboard =   require('./keyboard');
+var navigation = require('./navigation');
+var sidebar =    require('./sidebar');
+var toolbar =    require('./toolbar');
+
+function init() {
+    // Init sidebar
+    sidebar.init();
+
+    // Init keyboard
+    keyboard.init();
+
+    // Bind dropdown
+    dropdown.init();
+
+    // Init navigation
+    navigation.init();
+
+    // Add action to toggle sidebar
+    toolbar.createButton({
+        index: 0,
+        icon: 'fa fa-align-justify',
+        onClick: function(e) {
+            e.preventDefault();
+            sidebar.toggle();
+        }
+    });
+}
+
+module.exports = {
+    init:       init,
+    keyboard:   require('./keyboard'),
+    navigation: require('./navigation'),
+    sidebar:    require('./sidebar'),
+    toolbar:    require('./toolbar')
+};
\ No newline at end of file

src/js/keyboard.js → src/js/theme/keyboard.js

 var Mousetrap = require('mousetrap');
 
 var navigation = require('./navigation');
-var sidebar = require('./sidebar');
+var sidebar    = require('./sidebar');
 
 // Bind a keyboard shortcuts
 function bindShortcut(keys, fn) {

src/js/loading.js → src/js/theme/loading.js

-var state = require('./state');
+var state = require('../core').state;
 
 function showLoading(p) {
     state.$book.addClass('is-loading');

src/js/navigation.js → src/js/theme/navigation.js

 var $ = require('jquery');
 var url = require('url');
 
-var events = require('./events');
-var state = require('./state');
+var events  = require('../core').events;
+var state   = require('../core').state;
 var loading = require('./loading');
 
 

src/js/sidebar.js → src/js/theme/sidebar.js

 var $ = require('jquery');
 
-var storage = require('./storage');
+var storage  = require('../core').storage;
+var state    = require('../core').state;
 var platform = require('./platform');
-var state = require('./state');
 
 
 // Toggle sidebar with or withour animation

src/js/toolbar.js → src/js/theme/toolbar.js

 var $ = require('jquery');
 
-var events = require('./events');
+var events = require('../core').events;
 
 // List of created buttons
 var buttons = [];