New Demo Program - Navigating focus using arrow keys on keyboard

DemoPrograms/Demo_Focus_Navigation_Using_Arrow_Keys.py

@@ -0,0 +1,60 @@
+import PySimpleGUI as sg
+
+
+"""
+    Demo - Navigating a window's focus using arrow keys
+    
+    This Demo Program has 2 features of PySimpleGUI in use:
+    1. Binding the arrow keys
+    2. Navigating a window's elements using focus
+    
+    The first step is to bind the left, right and down arrows to an event.
+    The call to window.bind will cause events to be generated when these keys are pressed
+    
+    The next step is to add the focus navigation to your event loop.
+    When the right key is pressed, the focus moves to the element that should get focus next
+    When the left arrow key is pressed, the focus moves to the previous element
+    And when the down arrow is pressed the program exits
+
+
+    Copyright 2022 PySimpleGUI
+"""
+
+
+
+def main():
+    layout = [  [sg.Text('My Window')],
+                [sg.Input(key='-IN-')],
+                [sg.Input(key='-IN2-')],
+                [sg.Input(key='-IN3-')],
+                [sg.Input(key='-IN4-')],
+                [sg.Input(key='-IN5-')],
+                [sg.Input(key='-IN6-')],
+                [sg.Input(key='-IN7-')],
+                [sg.Button('Go'), sg.Button('Exit')]]
+
+    window = sg.Window('Window Title', layout, finalize=True)
+
+    # Bind the Left, Right and Down arrow keys to events
+    window.bind('<Right>', '-NEXT-')
+    window.bind('<Left>', '-PREV-')
+    window.bind('<Down>', 'Exit')
+
+    while True:             # Event Loop
+        event, values = window.read()
+        print(event, values)
+        if event == sg.WIN_CLOSED or event == 'Exit':
+            break
+        # Right arrow pressed, so move to the next element that should get focus
+        if event == '-NEXT-':
+            next_element = window.find_element_with_focus().get_next_focus()
+            next_element.set_focus()
+
+        # Left arrow pressed, so move to the previous element that should get focus
+        if event == '-PREV-':
+            prev_element = window.find_element_with_focus().get_previous_focus()
+            prev_element.set_focus()
+    window.close()
+
+if __name__ == '__main__':
+    main()