From b4113d1a61367cb8644bd022e2df5ec08b8b0929 Mon Sep 17 00:00:00 2001
From: eight <eight04@gmail.com>
Date: Sun, 2 Sep 2018 16:35:16 +0800
Subject: [PATCH] Move csslint-loader to background

---
 background/csslint-loader.js | 41 ++++++++++++++++++++++++++++++++++++
 js/usercss.js                |  2 +-
 2 files changed, 42 insertions(+), 1 deletion(-)
 create mode 100644 background/csslint-loader.js

diff --git a/background/csslint-loader.js b/background/csslint-loader.js
new file mode 100644
index 00000000..dfe7811f
--- /dev/null
+++ b/background/csslint-loader.js
@@ -0,0 +1,41 @@
+/* global importScripts parserlib CSSLint parseMozFormat */
+'use strict';
+
+const CSSLINT_PATH = '/vendor-overwrites/csslint/';
+importScripts(CSSLINT_PATH + 'parserlib.js');
+
+parserlib.css.Tokens[parserlib.css.Tokens.COMMENT].hide = false;
+
+self.onmessage = ({data}) => {
+
+  const {action = 'run'} = data;
+
+  if (action === 'parse') {
+    if (!self.parseMozFormat) self.importScripts('/js/moz-parser.js');
+    self.postMessage(parseMozFormat(data));
+    return;
+  }
+
+  if (!self.CSSLint) self.importScripts(CSSLINT_PATH + 'csslint.js');
+
+  switch (action) {
+    case 'getAllRuleIds':
+      // the functions are non-tranferable and we need only an id
+      self.postMessage(CSSLint.getRules().map(rule => rule.id));
+      return;
+
+    case 'getAllRuleInfos':
+      // the functions are non-tranferable
+      self.postMessage(CSSLint.getRules().map(rule => JSON.parse(JSON.stringify(rule))));
+      return;
+
+    case 'run': {
+      const {code, config} = data;
+      const results = CSSLint.verify(code, config).messages
+        //.filter(m => !m.message.includes('/*[[') && !m.message.includes(']]*/'))
+        .map(m => Object.assign(m, {rule: {id: m.rule.id}}));
+      self.postMessage(results);
+      return;
+    }
+  }
+};
diff --git a/js/usercss.js b/js/usercss.js
index 8f5e6eda..9d54bc01 100644
--- a/js/usercss.js
+++ b/js/usercss.js
@@ -599,7 +599,7 @@ var usercss = (() => {
 
   function invokeWorker(message) {
     if (!worker.queue) {
-      worker.instance = new Worker('/edit/csslint-loader.js');
+      worker.instance = new Worker('/background/csslint-loader.js');
       worker.queue = [];
       worker.instance.onmessage = ({data}) => {
         worker.queue.shift().resolve(data.__ERROR__ ? Promise.reject(data.__ERROR__) : data);