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themes/next/scripts/helpers/next-url.js

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+/**
+ * next-url.js | https://theme-next.org/api/helpers/next-url/
+ */
+
+/* global hexo */
+
+'use strict';
+
+hexo.extend.helper.register('next_url', function(path, text, options) {
+  var htmlTag = require('hexo-util').htmlTag;
+  var config = this.config;
+  var url = require('url');
+  var data = url.parse(path);
+  var siteHost = url.parse(config.url).hostname || config.url;
+
+  var theme = hexo.theme.config;
+  var exturl = '';
+  var tag = 'a';
+  var attrs = { href: this.url_for(path) };
+
+  // If `exturl` enabled, set spanned links only on external links.
+  if (theme.exturl && data.protocol && data.hostname !== siteHost) {
+    tag = 'span';
+    exturl = 'exturl';
+    var encoded = Buffer.from(path).toString('base64');
+    attrs = {
+      class     : exturl,
+      'data-url': encoded
+    };
+  }
+
+  options = options || {};
+
+  var keys = Object.keys(options);
+  var key = '';
+
+  for (var i = 0, len = keys.length; i < len; i++) {
+    key = keys[i];
+
+    /**
+     * If option have `class` attribute, add it to
+     * 'exturl' class if `exturl` option enabled.
+     */
+    if (exturl !== '' && key === 'class') {
+      attrs[key] += ' ' + options[key];
+    } else {
+      attrs[key] = options[key];
+    }
+  }
+
+  if (attrs.class && Array.isArray(attrs.class)) {
+    attrs.class = attrs.class.join(' ');
+  }
+
+  // If it's external link, rewrite attributes.
+  if (data.protocol && data.hostname !== siteHost) {
+    attrs.external = null;
+
+    if (!theme.exturl) {
+      // Only for simple link need to rewrite/add attributes.
+      attrs.rel = 'noopener';
+      attrs.target = '_blank';
+    } else {
+      // Remove rel attributes for `exturl` in main menu.
+      attrs.rel = null;
+    }
+  }
+
+  return htmlTag(tag, attrs, text);
+});