104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
"""Adw.ActionRow subclass representing a single systemd unit."""
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from __future__ import annotations
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import gi
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gi.require_version("Gtk", "4.0")
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gi.require_version("Adw", "1")
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from gi.repository import Adw, GLib, Gtk # noqa: E402
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from . import systemctl # noqa: E402
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LOADING_STATES = {"reloading", "activating", "deactivating", "maintenance"}
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class ServiceRow(Adw.ActionRow):
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"""A row showing one systemd unit with a toggle switch and action buttons."""
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def __init__(
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self,
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name: str,
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unit: str,
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scope: str = "system",
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method: str = "systemctl",
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**kwargs,
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):
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super().__init__(title=name, subtitle=unit, **kwargs)
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self._unit = unit
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self._scope = scope
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self._method = method
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# ── Active / Inactive switch ──
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self._switch = Gtk.Switch(valign=Gtk.Align.CENTER)
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self._switch.connect("state-set", self._on_toggled)
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self.add_suffix(self._switch)
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self.set_activatable_widget(self._switch)
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# ── Restart button ──
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restart_btn = Gtk.Button(
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icon_name="view-refresh-symbolic",
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valign=Gtk.Align.CENTER,
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tooltip_text="Restart",
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css_classes=["flat"],
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)
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restart_btn.connect("clicked", self._on_restart)
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self.add_suffix(restart_btn)
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# ── Status pill ──
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self._status_label = Gtk.Label(
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css_classes=["caption", "dim-label"],
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valign=Gtk.Align.CENTER,
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margin_end=4,
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)
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self.add_suffix(self._status_label)
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# Initial state
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self.refresh()
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# ── public API ──
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def refresh(self):
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"""Poll systemctl and update the row."""
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active_state = systemctl.is_active(self._unit, self._scope)
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enabled_state = systemctl.is_enabled(self._unit, self._scope)
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is_active = active_state == "active"
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is_loading = active_state in LOADING_STATES
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is_failed = active_state == "failed"
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# Block the handler so we don't trigger a start/stop when we
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# programmatically flip the switch.
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self._switch.handler_block_by_func(self._on_toggled)
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self._switch.set_active(is_active)
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self._switch.handler_unblock_by_func(self._on_toggled)
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self._switch.set_sensitive(not is_loading)
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# Status text
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label = enabled_state
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if is_failed:
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label = "failed"
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elif is_loading:
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label = active_state
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self._status_label.set_label(label)
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# Visual cue for failures
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if is_failed:
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self.add_css_class("error")
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else:
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self.remove_css_class("error")
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# ── signal handlers ──
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def _on_toggled(self, switch: Gtk.Switch, state: bool) -> bool:
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action = "start" if state else "stop"
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systemctl.run_action(action, self._unit, self._scope, self._method)
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# Delay refresh so systemd has a moment to change state
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GLib.timeout_add(1500, self.refresh)
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return False # let GTK update the switch position
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def _on_restart(self, _btn: Gtk.Button):
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systemctl.run_action("restart", self._unit, self._scope, self._method)
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GLib.timeout_add(1500, self.refresh) |