[mod] reformatted keyBindingLayouts in JS client (default, vim)

searx/static/themes/simple/src/js/main/keyboard.js

@@ -55,26 +55,14 @@ searxng.ready(function () {
     }
   }, true);
 
-  // these bindings are always on
-  var keyBindings = {
+  /* common base for layouts */
+  var baseKeyBinding = {
     'Escape': {
       key: 'ESC',
       fun: removeFocus,
       des: 'remove focus from the focused input',
       cat: 'Control'
     },
-    'ArrowLeft': {
-      key: '⬅',
-      fun: highlightResult('up'),
-      des: 'Use left arrow to select previous search result',
-      cat: 'Results'
-    },
-    'ArrowRight': {
-      key: '➡',
-      fun: highlightResult('down'),
-      des: 'Use right arrow to select next search result',
-      cat: 'Results'
-    },
     'h': {
       key: 'h',
       fun: toggleHelp,
@@ -117,10 +105,27 @@ searxng.ready(function () {
       des: 'open the result in a new tab',
       cat: 'Results'
     },
-  }
+  };
+  var keyBindingLayouts = {
 
-  // these bindings are enabled by user preferences
-  var vimKeys = {
+    "default": Object.assign(
+      { /* SearXNG layout */
+        'ArrowLeft': {
+          key: '←',
+          fun: highlightResult('up'),
+          des: 'select previous search result',
+          cat: 'Results'
+        },
+        'ArrowRight': {
+          key: '→',
+          fun: highlightResult('down'),
+          des: 'select next search result',
+          cat: 'Results'
+        },
+      }, baseKeyBinding),
+
+    'vim': Object.assign(
+      { /* Vim-like Key Layout. */
         'b': {
           key: 'b',
           fun: scrollPage(-window.innerHeight),
@@ -169,13 +174,11 @@ searxng.ready(function () {
           des: 'select next search result',
           cat: 'Results'
         },
-  };
-
-  if (searxng.settings.hotkeys) {
-    // To add Vim-like key bindings, merge the 'vimKeys' into 'keyBindings'.
-    Object.assign(keyBindings, vimKeys);
+      }, baseKeyBinding)
   }
 
+  var keyBindings = keyBindingLayouts[searxng.settings.hotkeys] || keyBindingLayouts.default;
+
   searxng.on(document, "keydown", function (e) {
     // check for modifiers so we don't break browser's hotkeys
     if (