python-DiskPlayer/buttons.py

from gpiozero import Button
from signal import pause
import time
import subprocess
import beepy as beep



Button.was_held = False


def vol_up(btn):
    btn.was_held = True
    while btn.was_held:
        # print("Vol Up")
        result = subprocess.run(
            [f"mpc volume +10"],
            stdout=subprocess.PIPE,
            shell=True,
        ).stdout.decode("utf-8")
        # beep(sound=1)
        time.sleep(0.5)


def vol_down(btn):
    btn.was_held = True
    while btn.was_held:
        # print("Vol Down")
        result = subprocess.run(
            [f"mpc volume -10"],
            stdout=subprocess.PIPE,
            shell=True,
        ).stdout.decode("utf-8")
        # beep(sound=1)
        time.sleep(0.5)


def playpause_down(btn):
    btn.was_held = True
    while btn.was_held:
        print("playpause")
        time.sleep(1)


def released(btn):
    if not btn.was_held:
        pressed(btn)
    btn.was_held = False


def pressed(btn):
    if btn._pin.number == 15:
        # print("next")
        result = subprocess.run(
            [f"python ./player.py next"],
            stdout=subprocess.PIPE,
            shell=True,
        ).stdout.decode("utf-8")
    elif btn._pin.number == 24:
        # print("back")
        result = subprocess.run(
            [f"python ./player.py previous"],
            stdout=subprocess.PIPE,
            shell=True,
        ).stdout.decode("utf-8")
    elif btn._pin.number == 14:
        # print("playpause")
        result = subprocess.run(
            [f"python ./player.py playpause"],
            stdout=subprocess.PIPE,
            shell=True,
        ).stdout.decode("utf-8")
    elif btn._pin.number == 23:
        # print("shuffle")
        result = subprocess.run(
            [f"python ./player.py shuffle"],
            stdout=subprocess.PIPE,
            shell=True,
        ).stdout.decode("utf-8")


up_btn = Button(15)
down_button = Button(24)
playpause_button = Button(14)
shuffle_button = Button(23)

down_button.when_held = vol_down
down_button.when_released = released

up_btn.when_held = vol_up
up_btn.when_released = released

playpause_button.when_released = released
shuffle_button.when_released = released
pause()