Added summary delimiter button for markdown editor (fixes #466)

themes/grav/app/forms/fields/editor/buttons.js

@@ -214,6 +214,16 @@ export default {
                     replacer({ name: 'strike', replace: '~~$1$cur~~', codemirror, button });
                 }
             }
+        }, {
+            delimiter: {
+                identifier: 'delimiter',
+                title: 'Summary Delimiter',
+                label: '<i class="fa fa-fw fa-minus"></i>',
+                modes: ['gfm', 'markdown'],
+                action({ codemirror, button, textarea }) {
+                    replacer({ name: 'delimiter', replace: `${config.site.delimiter}$1`, codemirror, button, mode: 'replaceLine' });
+                }
+            }
         }, {
             link: {
                 identifier: 'link',

themes/grav/templates/partials/javascript-config.html.twig

@@ -9,7 +9,10 @@
         admin_timeout: '{{ config.plugins.admin.session.timeout ?: 1800 }}',
         admin_nonce: '{{ admin.getNonce }}',
         language: '{{ grav.user.language|default('en') }}',
-        pro_enabled: '{{ config.plugins["admin-pro"].enabled }}'
+        pro_enabled: '{{ config.plugins["admin-pro"].enabled }}',
+        site: {
+            delimiter: '{{ config.site.summary.delimiter|default('===') }}'
+        }
     };
     window.GravAdmin.uri_params = {};