feat(hook): new hook updateNav for update navbar content

index.html

@@ -55,6 +55,9 @@
       formatUpdated: '{MM}/{DD} {HH}:{mm}',
       plugins: [
         function (hook, vm) {
+          hook.updateNav(function(nav){
+            return `${nav}\n- lol`
+          }),
           hook.beforeEach(function (html) {
             if (/githubusercontent\.com/.test(vm.route.file)) {
               url = vm.route.file
@@ -79,9 +82,9 @@
     }
   </script>
   <script src="/lib/docsify.js"></script>
-  <script src="/lib/plugins/search.js"></script>
+  <!-- <script src="/lib/plugins/search.js"></script>
   <script src="/lib/plugins/emoji.js"></script>
-  <script src="/lib/plugins/front-matter.js"></script>
+  <script src="/lib/plugins/front-matter.js"></script> -->
   <script src="//unpkg.com/prismjs/components/prism-bash.min.js"></script>
   <script src="//unpkg.com/prismjs/components/prism-markdown.min.js"></script>
   <script src="//unpkg.com/prismjs/components/prism-nginx.min.js"></script>

src/core/init/lifecycle.js

@@ -5,6 +5,7 @@ export function initLifecycle(vm) {
     'init',
     'mounted',
     'beforeEach',
+    'updateNav',
     'afterEach',
     'doneEach',
     'ready',

src/core/render/index.js

@@ -140,7 +140,13 @@ export function renderMixin(proto) {
   };
 
   proto._renderNav = function(text) {
-    text && this._renderTo('nav', this.compiler.compile(text));
+    if (text) {
+      callHook(this, 'updateNav', text, result => {
+        text = result || text;
+        this._renderTo('nav', this.compiler.compile(text));
+      });
+    }
+
     if (this.config.loadNavbar) {
       getAndActive(this.router, 'nav');
     }