keyboard_comm: store keyboard UID to the saved layout file

src/main/python/keyboard_comm.py

@@ -58,6 +58,7 @@ class Keyboard:
         self.encoders = []
         self.macro_count = 0
         self.macro_memory = 0
+        self.uid = 0
         self.macro = b""
         self.vibl = False
 
@@ -71,6 +72,7 @@ class Keyboard:
         self.layout = dict()
         self.encoder_layout = dict()
 
+        self.uid = struct.unpack(">Q", self.get_uid())[0]
         self.reload_layout(sideload_json)
         self.reload_layers()
         self.reload_keymap()
@@ -247,9 +249,7 @@ class Keyboard:
     def save_layout(self):
         """ Serializes current layout to a binary """
 
-        # TODO: increase version before release
-        # TODO: store keyboard UID here as well
-        data = {"version": 0}
+        data = {"version": 1, "uid": self.uid}
 
         layout = []
         for l in range(self.layers):

src/main/python/keyboard_container.py

@@ -1,7 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
+import json
 
 from PyQt5.QtCore import pyqtSignal, Qt
-from PyQt5.QtWidgets import QWidget, QHBoxLayout, QLabel, QVBoxLayout, QPushButton, QApplication
+from PyQt5.QtWidgets import QWidget, QHBoxLayout, QLabel, QVBoxLayout, QPushButton, QApplication, QMessageBox
 from PyQt5.QtGui import QPalette
 
 from clickable_label import ClickableLabel
@@ -167,6 +168,12 @@ class KeyboardContainer(QWidget):
         return self.keyboard.save_layout()
 
     def restore_layout(self, data):
+        if json.loads(data.decode("utf-8")).get("uid") != self.keyboard.uid:
+            ret = QMessageBox.question(self, "", tr("KeyboardContainer", "Saved keymap belongs to a different keyboard,"
+                                                                         " are you sure you want to continue?"),
+                                       QMessageBox.Yes | QMessageBox.No)
+            if ret != QMessageBox.Yes:
+                return
         self.keyboard.restore_layout(data)
         self.refresh_layer_display()