move validators and metas to their respective modules

kmk/modules/layers.py

@@ -1,13 +1,22 @@
 '''One layer isn't enough. Adds keys to get to more of them'''
-from kmk.key_validators import layer_key_validator
 from kmk.keys import KC, make_argumented_key
-from kmk.modules.holdtap import ActivationType, HoldTap
-from kmk.types import HoldTapKeyMeta
+from kmk.modules.holdtap import ActivationType, HoldTap, HoldTapKeyMeta
 from kmk.utils import Debug
 
 debug = Debug(__name__)
 
 
+def layer_key_validator(layer, kc=None):
+    '''
+    Validates the syntax (but not semantics) of a layer key call.  We won't
+    have access to the keymap here, so we can't verify much of anything useful
+    here (like whether the target layer actually exists). The spirit of this
+    existing is mostly that Python will catch extraneous args/kwargs and error
+    out.
+    '''
+    return LayerKeyMeta(layer, kc)
+
+
 def layer_key_validator_lt(layer, kc, prefer_hold=False, **kwargs):
     return HoldTapKeyMeta(tap=kc, hold=KC.MO(layer), prefer_hold=prefer_hold, **kwargs)
 
@@ -18,6 +27,12 @@ def layer_key_validator_tt(layer, prefer_hold=True, **kwargs):
     )
 
 
+class LayerKeyMeta:
+    def __init__(self, layer, kc=None):
+        self.layer = layer
+        self.kc = kc
+
+
 class Layers(HoldTap):
     '''Gives access to the keys used to enable the layer system'''