Add support to toggle no-scripting switch with keyboard shortcut

Related issue:
uBlockOrigin/uBlock-issues#692

Author: gorhill

platform/chromium/manifest.json

@@ -30,6 +30,9 @@
     },
     "toggle-cosmetic-filtering": {
       "description": "__MSG_toggleCosmeticFiltering__"
+    },
+    "toggle-javascript": {
+      "description": "__MSG_toggleJavascript__"
     }
   },
   "content_scripts": [

src/_locales/en/messages.json

@@ -1253,6 +1253,10 @@
     "message": "Toggle cosmetic filtering",
     "description": "Label for keyboard shortcut used to toggle cosmetic filtering"
   },
+  "toggleJavascript": {
+    "message": "Toggle JavaScript",
+    "description": "Label for keyboard shortcut used to toggle no-scripting switch"
+  },
   "relaxBlockingMode": {
     "message": "Relax blocking mode",
     "description": "Label for keyboard shortcut used to relax blocking mode"

src/js/commands.js

@@ -136,6 +136,7 @@ vAPI.commands.onCommand.addListener(async command => {
     // Tab-specific commands
     const tab = await vAPI.tabs.getCurrent();
     if ( tab instanceof Object === false ) { return; }
+
     switch ( command ) {
     case 'launch-element-picker':
     case 'launch-element-zapper': {
@@ -168,6 +169,13 @@ vAPI.commands.onCommand.addListener(async command => {
             hostname: hostnameFromURI(µb.normalizeTabURL(tab.id, tab.url)),
         });
         break;
+    case 'toggle-javascript':
+        µb.toggleHostnameSwitch({
+            name: 'no-scripting',
+            hostname: hostnameFromURI(µb.normalizeTabURL(tab.id, tab.url)),
+        });
+        vAPI.tabs.reload(tab.id);
+        break;
     default:
         break;
     }