Moves PolkitPrompt from shell.qml into HyprChromeShell. Whether a prompt is
open is shell state by the same rule as the screen and the layer pair: two
surfaces read it.
The prompt no longer carries a backdrop of its own. There is one
ChromeBackdrop per output and a prompt raises them all, so a prompt over an
already-expanded rail reuses the scrim that is there rather than stacking a
second one on it, and a prompt over a collapsed rail expands that same scrim
from its bar-height band to the whole output.
The layer pair now keys off `scrimUp` (expanded OR prompting) rather than off
the density, which keeps bar and backdrop exactly one level apart in every
state. A prompt over a collapsed rail raises both: BACKGROUND sits under
ordinary windows so a scrim there dims nothing, and the bar has to stay one
above the scrim or the shell dims its own chrome. The rail is raised but
stays collapsed — its layer answers to the scrim, its height to `expanded`.
Outputs the rail does not live on get a scrim only while a prompt is up; a
modal that dims one monitor and leaves the others lit does not read as modal.
Expanding the rail still dims only the rail's screen, which is the existing
behaviour and the right one.
The dialog follows Hyprland.focusedMonitor rather than the rail's screen — a
password prompt belongs where the user is looking — matched by name against
Quickshell.screens, falling back to the rail's screen rather than to nothing.
SUPER A is frozen while a prompt is open, and dropped rather than queued, so
the rail does not spring open the moment the dialog goes.
Verified on two monitors via hyprctl layers, both densities, plus the toggle
block with an odd number of presses (two cancel out and prove nothing).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GAq2kKCLazZmrKvkd3akud
darmanandClaude Opus 5
38608c4008