Accept individual modifier keys as valid keybindings

packages/commands/src/index.ts

@@ -512,7 +512,7 @@ export class CommandRegistry {
    */
   processKeydownEvent(event: KeyboardEvent): void {
     // Bail immediately if playing back keystrokes.
-    if (this._replaying || CommandRegistry.isModifierKeyPressed(event)) {
+    if (this._replaying) {
       return;
     }
 
@@ -1250,10 +1250,8 @@ export namespace CommandRegistry {
   export function keystrokeForKeydownEvent(event: KeyboardEvent): string {
     let layout = getKeyboardLayout();
     let key = layout.keyForKeydownEvent(event);
-    if (!key || layout.isModifierKey(key)) {
-      return '';
-    }
-    let mods = [];
+    let mods = []
+
     if (event.ctrlKey) {
       mods.push('Ctrl');
     }
@@ -1266,7 +1264,21 @@ export namespace CommandRegistry {
     if (event.metaKey && Platform.IS_MAC) {
       mods.push('Cmd');
     }
-    mods.push(key);
+    if (!mods.includes(event.key)) {
+      mods.push(key);
+    }
+    console.log(mods)
+    // Handle the edge cases
+    // Handle the edge case for triggering the Alt Shift key binding
+    if (mods.length === 2 && (mods[0] === 'Alt' && mods[1] === 'Shift')) {
+        return "Alt" + ' ' + "Shift" + ' '
+    } 
+
+    // Handle the edge case for triggering the Alt key binding
+    if (mods.length === 1 && mods[0] === 'Alt') {
+      return "Alt" + ' '
+      }
+
     return mods.join(' ');
   }
 }