Initial public release

widgets/request_variable_dialog.py

@@ -0,0 +1,136 @@
+"""Modal popup invoked when a device sends a Request BLE Variable(s) op.
+
+The dialog lists the variable names the device asked for, pre-fills with the
+current device-profile values (if any), and returns the user's edits via the
+on_submit callback. Clicking Cancel returns None — the BLE client falls back
+to the existing values in that case.
+"""
+
+import tkinter as tk
+from tkinter import messagebox
+
+
+class RequestVariableDialog(tk.Toplevel):
+    _BG = "#2D2D3D"
+    _ROW_BG = "#252535"
+    _ENTRY_BG = "#1E1E2E"
+    _FG = "#FFFFFF"
+    _DIM_FG = "#AAAAAA"
+    _BTN_BG = "#3D3D5C"
+    _SAVE_BG = "#0077CC"
+
+    def __init__(self, parent, mac: str, names: list, current: dict,
+                 on_submit, play_sound: bool = True):
+        super().__init__(parent)
+        self.title(f"Variable Request — {mac}")
+        self.geometry("520x420")
+        self.minsize(380, 240)
+        self.configure(bg=self._BG)
+        self.transient(parent)
+        self.grab_set()
+
+        self._on_submit = on_submit
+        self._mac = mac
+        self._names = list(names)
+        self._current = dict(current or {})
+        self._rows = []
+
+        try:
+            import ctypes
+            self.update_idletasks()
+            hwnd = ctypes.windll.user32.GetParent(self.winfo_id())
+            ctypes.windll.dwmapi.DwmSetWindowAttribute(
+                hwnd, 20, ctypes.byref(ctypes.c_int(1)), ctypes.sizeof(ctypes.c_int))
+        except Exception:
+            pass
+
+        self._build_ui()
+        # Intentionally NOT binding <Return> globally on the Toplevel: a stray
+        # Enter keystroke pending in the OS keyboard queue when this dialog
+        # focus_force()s itself in would auto-submit before the user types,
+        # send empty values back to the device, and "end the routine."
+        # Submission goes through the Send to Device button only.
+        self.protocol("WM_DELETE_WINDOW", self._cancel)
+
+        if play_sound:
+            try:
+                import winsound
+                winsound.MessageBeep(winsound.MB_ICONEXCLAMATION)
+            except Exception:
+                pass
+
+        self.lift()
+        self.focus_force()
+
+    def _build_ui(self):
+        hdr = tk.Frame(self, bg=self._BG)
+        hdr.pack(fill="x", padx=14, pady=(12, 4))
+        tk.Label(hdr, text="Variable Request", bg=self._BG, fg="#0AACFF",
+                 font=("Segoe UI", 11, "bold")).pack(side="left")
+        tk.Label(hdr, text=f"Device {self._mac}", bg=self._BG, fg=self._DIM_FG,
+                 font=("Segoe UI", 8)).pack(side="left", padx=(10, 0))
+
+        tk.Label(self, bg=self._BG, fg=self._DIM_FG, font=("Segoe UI", 8),
+                 text="Fill in values below; the device will receive them and "
+                      "the device profile will be updated.").pack(
+            anchor="w", padx=14)
+
+        outer = tk.Frame(self, bg=self._BG)
+        outer.pack(fill="both", expand=True, padx=14, pady=8)
+
+        canvas = tk.Canvas(outer, bg=self._BG, highlightthickness=0)
+        scrollbar = tk.Scrollbar(outer, orient="vertical", command=canvas.yview)
+        canvas.configure(yscrollcommand=scrollbar.set)
+        scrollbar.pack(side="right", fill="y")
+        canvas.pack(side="left", fill="both", expand=True)
+
+        rows_frame = tk.Frame(canvas, bg=self._BG)
+        rows_window = canvas.create_window((0, 0), window=rows_frame, anchor="nw")
+        rows_frame.bind("<Configure>",
+                        lambda e: canvas.configure(scrollregion=canvas.bbox("all")))
+        canvas.bind("<Configure>",
+                    lambda e: canvas.itemconfig(rows_window, width=e.width))
+
+        first_entry = None
+        for name in self._names:
+            row = tk.Frame(rows_frame, bg=self._ROW_BG, pady=3)
+            row.pack(fill="x", pady=2)
+            tk.Label(row, text=name, bg=self._ROW_BG, fg=self._FG,
+                     font=("Segoe UI", 9, "bold"), width=18, anchor="w").pack(
+                side="left", padx=(8, 4))
+            var = tk.StringVar(value=str(self._current.get(name, "")))
+            entry = tk.Entry(row, textvariable=var, bg=self._ENTRY_BG,
+                             fg=self._FG, insertbackground=self._FG,
+                             font=("Segoe UI", 9), relief="flat")
+            entry.pack(side="left", fill="x", expand=True, padx=(0, 8), ipady=3)
+            self._rows.append((name, var))
+            if first_entry is None:
+                first_entry = entry
+
+        if first_entry is not None:
+            first_entry.focus_set()
+
+        btns = tk.Frame(self, bg=self._BG)
+        btns.pack(fill="x", padx=14, pady=(4, 12))
+        tk.Button(btns, text="Cancel", bg=self._BTN_BG, fg=self._FG,
+                  relief="flat", padx=12, font=("Segoe UI", 9),
+                  command=self._cancel).pack(side="right", padx=(6, 0))
+        tk.Button(btns, text="Send to Device", bg=self._SAVE_BG, fg=self._FG,
+                  relief="flat", padx=14, font=("Segoe UI", 9, "bold"),
+                  command=self._submit).pack(side="right")
+
+    def _submit(self):
+        result = {name: var.get() for name, var in self._rows}
+        try:
+            self._on_submit(result)
+        except Exception as e:
+            messagebox.showerror("Variable Request", str(e), parent=self)
+            return
+        self.destroy()
+
+    def _cancel(self):
+        try:
+            self._on_submit(None)
+        except Exception:
+            pass
+        self.destroy()