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#!/usr/bin/env python3
"""
Waybar Peek - Auto-hide for Hyprland (Multi-monitor)
Shows waybar when cursor is at top edge, hides when workspace has windows.
Toggle auto-hide: pkill -HUP -f waybar_peek
"""
import json
import os
import signal
import socket
import time
from pathlib import Path
# Configuration
PIXEL_THRESHOLD = 5 # Show bar when within 5px of top
PIXEL_THRESHOLD_HIDE = 50 # Hide when cursor goes below 50px
POLL_INTERVAL = 0.1 # Poll every 100ms
class WaybarPeek:
def __init__(self):
self.xdg_runtime = os.environ.get("XDG_RUNTIME_DIR", f"/run/user/{os.getuid()}")
self.hypr_sig = os.environ.get("HYPRLAND_INSTANCE_SIGNATURE", "")
self.socket_path = f"{self.xdg_runtime}/hypr/{self.hypr_sig}/.socket.sock"
self.cursor_at_top = False
self.last_visibility = None
self.waybar_pid = None
self.enabled = True # Auto-hide enabled by default
# Setup signal handler for toggle
signal.signal(signal.SIGHUP, self.toggle_handler)
def toggle_handler(self, signum, frame):
"""Handle SIGHUP to toggle auto-hide on/off"""
self.enabled = not self.enabled
status = "enabled" if self.enabled else "disabled"
print(f"Auto-hide {status}")
if not self.enabled:
# When disabled, always show the bar
self.set_waybar_visible(True)
self.last_visibility = True
else:
# When re-enabled, force state recalculation
self.last_visibility = None
def hypr_query(self, cmd: str) -> str:
"""Query Hyprland via socket"""
try:
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sock.connect(self.socket_path)
sock.send(cmd.encode())
response = b""
while True:
chunk = sock.recv(4096)
if not chunk:
break
response += chunk
sock.close()
return response.decode()
except Exception:
return ""
def get_cursor_pos(self) -> tuple:
"""Get cursor position as (x, y)"""
try:
data = json.loads(self.hypr_query("j/cursorpos"))
return (data.get("x", 0), data.get("y", 0))
except Exception:
return (0, 0)
def get_monitors(self) -> list:
"""Get all monitors with their bounds"""
try:
return json.loads(self.hypr_query("j/monitors"))
except Exception:
return []
def check_windows(self) -> bool:
"""Check if active workspace has windows"""
try:
data = json.loads(self.hypr_query("j/activeworkspace"))
return data.get("windows", 0) > 0
except Exception:
return False
def find_waybar_pid(self) -> int:
"""Find waybar process ID"""
try:
for entry in Path("/proc").iterdir():
if not entry.is_dir() or not entry.name.isdigit():
continue
comm_file = entry / "comm"
if comm_file.exists():
comm = comm_file.read_text().strip()
if comm in ("waybar", ".waybar-wrapped"):
return int(entry.name)
except Exception:
pass
return None
def set_waybar_visible(self, visible: bool) -> bool:
"""Send signal to waybar to show/hide"""
if self.waybar_pid is None:
self.waybar_pid = self.find_waybar_pid()
if self.waybar_pid is None:
return False
try:
sig = signal.SIGUSR2 if visible else signal.SIGUSR1
os.kill(self.waybar_pid, sig)
return True
except ProcessLookupError:
self.waybar_pid = self.find_waybar_pid()
if self.waybar_pid:
try:
sig = signal.SIGUSR2 if visible else signal.SIGUSR1
os.kill(self.waybar_pid, sig)
return True
except Exception:
pass
except Exception:
pass
return False
def is_cursor_at_top(self) -> bool:
"""Check if cursor is at top edge of any monitor"""
cursor_x, cursor_y = self.get_cursor_pos()
monitors = self.get_monitors()
for m in monitors:
mx, my = m.get("x", 0), m.get("y", 0)
mw, mh = m.get("width", 0), m.get("height", 0)
# Check if cursor is on this monitor
if mx <= cursor_x <= mx + mw and my <= cursor_y <= my + mh:
# Calculate local Y position relative to this monitor
local_y = cursor_y - my
# Use different thresholds based on current state
threshold = PIXEL_THRESHOLD_HIDE if self.cursor_at_top else PIXEL_THRESHOLD
return local_y <= threshold
return False
def run(self):
"""Main loop"""
print(f"waybar-peek started (PID: {os.getpid()})")
print(f"Socket: {self.socket_path}")
print(f"Toggle auto-hide: pkill -HUP -f waybar_peek")
# Initial state
windows_opened = self.check_windows()
self.last_visibility = not windows_opened
while True:
try:
# Skip auto-hide logic if disabled
if not self.enabled:
time.sleep(POLL_INTERVAL)
continue
# Check cursor position
new_cursor_at_top = self.is_cursor_at_top()
if new_cursor_at_top != self.cursor_at_top:
self.cursor_at_top = new_cursor_at_top
# Check windows
windows_opened = self.check_windows()
# Determine visibility: show if cursor at top OR no windows
should_be_visible = self.cursor_at_top or not windows_opened
# Update waybar if state changed
if should_be_visible != self.last_visibility:
self.set_waybar_visible(should_be_visible)
self.last_visibility = should_be_visible
time.sleep(POLL_INTERVAL)
except KeyboardInterrupt:
print("\nExiting...")
break
except Exception as e:
print(f"Error: {e}")
time.sleep(1)
if __name__ == "__main__":
app = WaybarPeek()
app.run()
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