swapping control with cmd

kmk/modules/swap_keys.py

@@ -0,0 +1,70 @@
+from kmk.keys import KC, ModifierKey, make_key
+from kmk.modules import Module
+
+
+class SwapKeys(Module):
+    # default cg swap is disabled, can be eanbled too if needed
+    def __init__(self, cg_swap_enable=False):
+        self.cg_swap_enable = cg_swap_enable
+        self._cg_mapping = {
+            KC.LCTL: KC.LGUI,
+            KC.RCTL: KC.RGUI,
+            KC.LGUI: KC.LCTL,
+            KC.RGUI: KC.RCTL,
+        }
+        make_key(
+            names=('CG_SWAP',),
+        )
+        make_key(
+            names=('CG_NORM',),
+        )
+        make_key(
+            names=('CG_TOGG',),
+        )
+
+    def during_bootup(self, keyboard):
+        return
+
+    def matrix_detected_press(self, keyboard):
+        return keyboard.matrix_update is None
+
+    def before_matrix_scan(self, keyboard):
+        return
+
+    def process_key(self, keyboard, key, is_pressed, int_coord):
+        if is_pressed:
+            # enables or disables or toggles cg swap
+            if key == KC.CG_SWAP:
+                self.cg_swap_enable = True
+            elif key == KC.CG_NORM:
+                self.cg_swap_enable = False
+            elif key == KC.CG_TOGG:
+                if not self.cg_swap_enable:
+                    self.cg_swap_enable = True
+                else:
+                    self.cg_swap_enable = False
+            # performs cg swap
+            if (
+                self.cg_swap_enable
+                and key not in (KC.CG_SWAP, KC.CG_NORM, KC.CG_TOGG)
+                and isinstance(key, ModifierKey)
+                and key in self._cg_mapping
+            ):
+                key = self._cg_mapping.get(key)
+
+        return key
+
+    def before_hid_send(self, keyboard):
+        return
+
+    def after_hid_send(self, keyboard):
+        return
+
+    def on_powersave_enable(self, keyboard):
+        return
+
+    def on_powersave_disable(self, keyboard):
+        return
+
+    def after_matrix_scan(self, keyboard):
+        return