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feat(displays): display profiles — docked/undocked switching (item 15a)
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nomarchy.displayProfiles: named layouts for the same outputs, each a
list of nomarchy.monitors-style entries. The active profile lives in
the in-flake state (settings.displayProfile) on the night-light
pattern: nomarchy-display-profile apply <name> fires the baked hyprctl
rules instantly and writes the state with --no-switch; the next rebuild
bakes the profile's entries over nomarchy.monitors whole-by-name.
Monitor-rule composition is extracted to pure monitor-rules.nix
(renderer + 3-layer resolve, incl. a disable-guard so a stale menu
resolution pick can't resurrect a profile-disabled panel, and junk
state degrading to base config instead of an eval error) — because a
writeText/toFile state fixture is unreadable at flake-check eval time,
the new checks.display-profiles unit-tests the pure function directly.
Menu: System › Display gains a self-gated "Profiles ›" row (●/○ active
mark, Base layout to clear); commented template example + README row.

Verified: V0 (flake check, forcing the new check's asserts); V1 — a
scratch downstream through lib.mkFlake builds: the generated tool
passes bash -n with correct rules (disable/vrr/float scale), the baked
hyprland.conf shows the exact expected overlay, the menu renders, and
list/usage smoke-test clean. Remains: V3 live switching on a dock
(HARDWARE-QUEUE). Slices b (hotplug auto-switch) + c (workspace
binding) stay in item 15.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Bernardo Magri
2026-07-05 17:52:19 +01:00
parent e02b4d8200
commit 9df18261f9
11 changed files with 271 additions and 43 deletions
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43
flake.nix
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@@ -332,6 +332,49 @@
'';
};
# Unit test of the monitor-rule overlay (modules/home/
# monitor-rules.nix — pure, imported directly, no HM eval): the
# active profile must replace base entries whole by name, leave
# unnamed base outputs alone, and the disable-guard must stop a
# stale menu resolution pick (settings.monitors) resurrecting a
# panel the profile disables. Junk in settings.displayProfile
# degrades to base config, never an eval error.
display-profiles =
let
inherit (nixpkgs) lib;
monitorLib = import ./modules/home/monitor-rules.nix { inherit lib; };
entry = a: monitorLib.defaults // a;
fixture = {
base = [
(entry { name = "eDP-1"; position = "0x0"; })
(entry { name = "HDMI-A-1"; position = "auto-right"; })
];
profiles.docked = [
(entry { name = "eDP-1"; resolution = "disable"; })
(entry { name = "DP-3"; position = "0x0"; })
];
resOverrides."eDP-1" = "1920x1080@60"; # stale pick — must stay dead
};
rulesFor = active: map monitorLib.rule
(monitorLib.resolve (fixture // { inherit active; }));
docked = rulesFor "docked";
junk = rulesFor 42; # hand-edited state (validator only warns)
expect = cond: msg: lib.assertMsg cond
"display-profiles: ${msg} (rendered: ${builtins.toJSON docked})";
ok =
expect (lib.elem "eDP-1, disable" docked)
"the profile did not disable eDP-1"
&& expect (! lib.any (lib.hasInfix "1920x1080") docked)
"a stale resolution pick resurrected the disabled panel"
&& expect (lib.elem "DP-3, preferred, 0x0, 1" docked)
"the profile-only output's rule is missing"
&& expect (lib.elem "HDMI-A-1, preferred, auto-right, 1" docked)
"an unnamed base output lost its rule"
&& expect (lib.elem "eDP-1, 1920x1080@60, 0x0, 1" junk)
"junk active profile must degrade to base config (with the pick applied)";
in
assert ok; pkgs.runCommand "nomarchy-display-profiles" { } "touch $out";
# The low-battery watcher's crossing logic: one toast per downward
# crossing (normal at 25%, critical at 10%), re-armed by charging.
# test_power fakes a battery whose capacity/status we script;