autoen.py

#!/usr/bin/env python3
import time, subprocess, ctypes
from ctypes import c_double, c_uint32, c_int64

# ===== 配置 =====
IDLE_THRESHOLD = 7                 # 空闲阈值（秒）
CHECK_INTERVAL = 5                  # 轮询间隔（秒）
EN_ID = "com.apple.keylayout.ABC"   # 用 im-select list 确认你的英文ID

# ===== 空闲检测（CoreGraphics）=====
CG = ctypes.CDLL("/System/Library/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics")
CG.CGEventSourceSecondsSinceLastEventType.restype = c_double
CG.CGEventSourceSecondsSinceLastEventType.argtypes = [c_uint32, c_int64]
def idle_seconds() -> float:
    # 1 = kCGEventSourceStateHIDSystemState, -1 = kCGAnyInputEventType
    return CG.CGEventSourceSecondsSinceLastEventType(1, -1)

# ===== 输入法操作（仅用 im-select）=====
def current_ime() -> str:
    return subprocess.check_output(["/opt/homebrew/bin/im-select"]).decode().strip()

def set_english():
    subprocess.run(["/opt/homebrew/bin/im-select", EN_ID], check=True)

if __name__ == "__main__":
    # 启动即校正一次
    try:
        if current_ime() != EN_ID:
            set_english()
    except Exception as e:
        raise SystemExit(f"im-select 异常：{e}\n请先确保可运行 `im-select list`")

    # 空闲切英文循环
    while True:
        try:
            if idle_seconds() >= IDLE_THRESHOLD and current_ime() != EN_ID:
                set_english()
        except Exception:
            pass
        time.sleep(CHECK_INTERVAL)