Tkinter check which Entry last had focus

Question

I am working on a program that has a virtual keyboard I created using Tkinter. The pages that have the keyboard enabled have entry widgets where the users need to input data. I am using pyautogui as part of the virtual keyboard to simulate the keyboard presses, but my issue is the widget that is focused when a user presses on any of the buttons on the keyboard. Since each keyboard button is a ttk.Button when they press the keys, the button has the focus, and not the Entry widget they had selected they were trying to put data in.

As such right now I have the method which runs the keypresses, calling a specific widget to become the focus before it does the key press. Here's the code I have right now:

import tkinter as tk
from tkinter import ttk
import pyautogui

def drawKeyboard(parent):

    keyboardFrame = tk.Frame(parent)
    keyboardFrame.pack()

    keys = [
        [ ("Alpha Keys"),
          [ ('q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p'),
            (' ', 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l'),
            ('capslock', 'z', 'x', 'c', 'v', 'b', 'n', 'm'),
            ('delete', 'backspace', 'home', 'end')
          ]
        ],
        [ ("Numeric Keys"),
          [ ('7', '8', '9'),
            ('4', '5', '6'),
            ('1', '2', '3'),
            (' ', '0', ' ')
          ]
        ]
    ]

    for key_section in keys:
        sect_vals = key_section[1]
        sect_frame = tk.Frame(keyboardFrame)
        sect_frame.pack(side = 'left', expand = 'yes', fill = 'both', padx = 10, pady = 10, ipadx = 10, ipady = 10)
        for key_group in sect_vals:
            group_frame = tk.Frame(sect_frame)
            group_frame.pack(side = 'top', expand = 'yes', fill = 'both')
            for key in key_group:
                key = key.capitalize()
                if len(key) <= 1:
                    key_button = ttk.Button(group_frame, text = key, width = 4)
                else:
                    key_button = ttk.Button(group_frame, text = key.center(5, ' '))
                if ' ' in key:
                    key_button['state'] = 'disable'
                key_button['command'] = lambda q=key.lower(): key_command(q)
                key_button.pack(side = 'left', fill = 'both', expand = 'yes')

def key_command(event):
    entry1.focus()
    pyautogui.press(event)
    return

root = tk.Tk()
entry1 = tk.Entry(root)
entry1.pack()
entry2 = tk.Entry(root)
entry2.pack()
drawKeyboard(root)
root.mainloop()

Obviously manually calling entry1.focus() does me no good if I want to input data into entry2. And calling entry2.focus() does no good if I want to put data into entry1. So is there a way for me to every time one of my buttons is pressed check to see which Entry Widget last had focus?

I need to check for specifically entry widgets as the final screen will also have some radio buttons and such. Thanks for your time

EDIT: I made a quick change to the code, exchanging the Shift key for the Capslock key. I realized that the way my code worked Shift would never actually work since you couldn't exactly hold it down and press another button.

Tkinter check which Entry last had focus

2 Answers