Optimize the loading of exturl (theme-next#1076)

Author: stevenjoezhang

layout/_partials/head/head.swig

@@ -99,6 +99,7 @@
     root: '{{ config.root }}',
     scheme: '{{ theme.scheme }}',
     version: '{{ version }}',
+    exturl: {{ theme.exturl }},
     sidebar: {{ theme.sidebar | json_encode }},
     back2top: {{ theme.back2top | json_encode }},
     save_scroll: {{ theme.save_scroll }},

layout/_scripts/exturl.swig

@@ -5,5 +5,4 @@
 {% include scheme_script %}
 
 {% include 'next-boot.swig' %}
-{% include 'exturl.swig' %}
 {% include 'three.swig' %}

layout/_scripts/index.swig

@@ -29,10 +29,6 @@ hexo.extend.filter.register('after_generate', () => {
     });
   }
 
-  if (!theme.exturl) {
-    hexo.route.remove('js/exturl.js');
-  }
-
   if (theme.vendors.jquery) {
     hexo.route.remove('lib/jquery/index.js');
   }

scripts/filters/minify.js

@@ -52,6 +52,7 @@ $(document).on('DOMContentLoaded pjax:success', function() {
   CONFIG.lazyload && window.lozad('.post-body img').observe();
   CONFIG.pangu && window.pangu.spacingPage();
 
+  CONFIG.exturl && NexT.utils.registerExtURL();
   CONFIG.copycode.enable && NexT.utils.registerCopyCode();
   NexT.utils.registerTabsTag();
   NexT.utils.registerActiveMenuItem();

source/js/exturl.js

@@ -42,6 +42,15 @@ NexT.utils = {
     });
   },
 
+  registerExtURL: function() {
+    $('.exturl').on('click', function() {
+      var $exturl = $(this).attr('data-url');
+      var $decurl = decodeURIComponent(escape(window.atob($exturl)));
+      window.open($decurl, '_blank', 'noopener');
+      return false;
+    });
+  },
+
   /**
    * One-click copy code support.
    */