Add id-wise list short

Fn. get_list_short(id) is added because it outputs simpler syntax and
per-case output.

src/scripts/python/xutil/common.py

@@ -1,10 +1,39 @@
 import subprocess
+from typing import List
+from multipledispatch import dispatch
 
 ENCODING = 'utf-8'
 
+@dispatch()
 def get_list_short():
     """Returns string output of the `xinput --list --short` command encoded as
     UTF-8"""
     completed = subprocess.run(
         ['xinput', '--list', '--short'], capture_output=True)
     return completed.stdout.decode(ENCODING)
+
+
+@dispatch(int)
+def get_list_short(id):
+    """Short List of the id
+
+    Args:
+        id (int): id registered in xinput
+
+    Rises:
+        ValueError: in case of id not found in devices
+    """
+    completed = subprocess.run(
+        ['xinput', '--list', '--short', str(id)], capture_output=True)
+    
+    if completed.returncode == 0:
+        return completed.stdout.decode(ENCODING)
+    else:
+        ValueError(f'id[{id}] is not registered')
+
+
+def get_ids() -> List[int]:
+    """returns list of ids registered in xinput"""
+    completed = subprocess.run(
+        ['xinput', '--list', '--id-only'], capture_output=True)
+    return list(map(int), completed.decode(ENCODING))