vnc: qemu ext keys

kvmd/keyboard/keysym.py

@@ -23,7 +23,6 @@
 import pkgutil
 import functools
 
-from typing import Tuple
 from typing import List
 from typing import Dict
 
@@ -32,6 +31,7 @@ import Xlib.keysymdef
 from ..logging import get_logger
 
 from .mappings import At1Key
+from .mappings import WebModifiers
 from .mappings import X11_TO_AT1
 from .mappings import AT1_TO_WEB
 
@@ -43,23 +43,6 @@ class SymmapModifiers:
     CTRL: int = 0x4
 
 
-def switch_symmap_modifiers(modifiers: int, code: int, state: bool) -> Tuple[bool, int]:
-    mod = 0
-    if code == 65505 or code == 65506:  # XK_Shift_L, XK_Shift_R
-        mod = SymmapModifiers.SHIFT
-    elif code == 65027:  # AltGR aka XK_ISO_Level3_Shift
-        mod = SymmapModifiers.ALTGR
-    elif code == 65507 or code == 65508:  # XK_Control_L, XK_Control_R
-        mod = SymmapModifiers.CTRL
-    if mod == 0:
-        return (False, modifiers)
-    if state:
-        modifiers |= mod
-    else:
-        modifiers &= ~mod
-    return (True, modifiers)
-
-
 def build_symmap(path: str) -> Dict[int, Dict[int, str]]:
     # https://github.com/qemu/qemu/blob/95a9457fd44ad97c518858a4e1586a5498f9773c/ui/keymaps.c
     logger = get_logger()
@@ -74,9 +57,9 @@ def build_symmap(path: str) -> Dict[int, Dict[int, str]]:
                 web_name = AT1_TO_WEB.get(key.code)
                 if web_name is not None:
                     if (
-                        (web_name in ["ShiftLeft", "ShiftRight"] and key.shift)  # pylint: disable=too-many-boolean-expressions
-                        or (web_name in ["AltLeft", "AltRight"] and key.altgr)
-                        or (web_name in ["ControlLeft", "ControlRight"] and key.ctrl)
+                        (web_name in WebModifiers.SHIFTS and key.shift)  # pylint: disable=too-many-boolean-expressions
+                        or (web_name in WebModifiers.ALTS and key.altgr)
+                        or (web_name in WebModifiers.CTRLS and key.ctrl)
                     ):
                         logger.error("Invalid modifier key at mapping %s: %s / %s", src, web_name, key)
                         continue

kvmd/keyboard/mappings.py

@@ -153,6 +153,33 @@ KEYMAP: Dict[str, Key] = {
 }
 
 
+# =====
+class WebModifiers:
+    SHIFT_LEFT = "ShiftLeft"
+    SHIFT_RIGHT = "ShiftRight"
+    SHIFTS = set([SHIFT_LEFT, SHIFT_RIGHT])
+
+    ALT_LEFT = "AltLeft"
+    ALT_RIGHT = "AltRight"
+    ALTS = set([ALT_LEFT, ALT_RIGHT])
+
+    CTRL_LEFT = "ControlLeft"
+    CTRL_RIGHT = "ControlRight"
+    CTRLS = set([CTRL_RIGHT, CTRL_RIGHT])
+
+
+class X11Modifiers:
+    SHIFT_LEFT = 65505
+    SHIFT_RIGHT = 65506
+    SHIFTS = set([SHIFT_LEFT, SHIFT_RIGHT])
+
+    ALTGR = 65027  # XK_ISO_Level3_Shift
+
+    CTRL_LEFT = 65507
+    CTRL_RIGHT = 65508
+    CTRLS = set([CTRL_LEFT, CTRL_RIGHT])
+
+
 # =====
 @dataclasses.dataclass(frozen=True)
 class At1Key:

kvmd/keyboard/mappings.py.mako

@@ -50,6 +50,33 @@ KEYMAP: Dict[str, Key] = {
 }
 
 
+# =====
+class WebModifiers:
+    SHIFT_LEFT = "ShiftLeft"
+    SHIFT_RIGHT = "ShiftRight"
+    SHIFTS = set([SHIFT_LEFT, SHIFT_RIGHT])
+
+    ALT_LEFT = "AltLeft"
+    ALT_RIGHT = "AltRight"
+    ALTS = set([ALT_LEFT, ALT_RIGHT])
+
+    CTRL_LEFT = "ControlLeft"
+    CTRL_RIGHT = "ControlRight"
+    CTRLS = set([CTRL_RIGHT, CTRL_RIGHT])
+
+
+class X11Modifiers:
+    SHIFT_LEFT = 65505
+    SHIFT_RIGHT = 65506
+    SHIFTS = set([SHIFT_LEFT, SHIFT_RIGHT])
+
+    ALTGR = 65027  # XK_ISO_Level3_Shift
+
+    CTRL_LEFT = 65507
+    CTRL_RIGHT = 65508
+    CTRLS = set([CTRL_LEFT, CTRL_RIGHT])
+
+
 # =====
 @dataclasses.dataclass(frozen=True)
 class At1Key:

kvmd/keyboard/printer.py

@@ -25,16 +25,17 @@ from typing import Dict
 from typing import Generator
 
 from .keysym import SymmapModifiers
+from .mappings import WebModifiers
 
 
 # =====
 def text_to_web_keys(
     text: str,
     symmap: Dict[int, Dict[int, str]],
-    shift_key: str="ShiftLeft",
+    shift_key: str=WebModifiers.SHIFT_LEFT,
 ) -> Generator[Tuple[str, bool], None, None]:
 
-    assert shift_key in ["ShiftLeft", "ShiftRight"]
+    assert shift_key in WebModifiers.SHIFTS
 
     shifted = False
     for ch in text: