From 3cc563ec599ae3d7e8109471aa8f788c43d2f3c5 Mon Sep 17 00:00:00 2001
From: Max Wu <jackymaxj@gmail.com>
Date: Thu, 27 Feb 2020 17:35:17 +0800
Subject: [PATCH] feat: define vega code block using json overlay mode in
 editor

to get vega-lite syntax highlighting work

Signed-off-by: Max Wu <jackymaxj@gmail.com>
---
 public/js/lib/editor/index.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/public/js/lib/editor/index.js b/public/js/lib/editor/index.js
index 5daca68d..4bead7ef 100644
--- a/public/js/lib/editor/index.js
+++ b/public/js/lib/editor/index.js
@@ -131,6 +131,17 @@ export default class Editor {
     }
     this.eventListeners = {}
     this.config = config
+
+    // define modes from mode mime
+    let ignoreOverlay = {
+      token: function (stream, state) {
+        stream.next()
+        return null
+      }
+    }
+    CodeMirror.defineMode('vega', function (config, modeConfig) {
+      return CodeMirror.overlayMode(CodeMirror.getMode(config, 'application/ld+json'), ignoreOverlay)
+    })
   }
 
   on (event, cb) {