Files
dotfiles/hypr/lua/mirror.lua
nvrl c36a74e861 feat(quickshell): idle chain, drifting wallpaper, and a few fixes
- Idle is handled in the shell instead of hypridle: the screen dims
  slowly at 4 minutes, locks at 5, powers down at 6, and suspends at 15
  on battery. Idle inhibitors hold every stage off; Super+Shift+I does
  the same by hand and puts a cup on the rail.
- The shell draws the wallpaper (backdrop/), so hyprpaper is gone. The
  picture is drawn a little larger than the screen and drifts with the
  workspace a beat after the windows, and dims a shade while windows are
  open. The path lives in quickshell/wallpaper.
- The lock screen and power menu say "Take your time." instead of the
  NieR slogan.
- hyprpaper is no longer launched twice, the media module keeps the
  player that played last instead of an empty browser tab, and grouped
  windows show thin untitled tabs with their place in the group (2/3)
  in the bar title.
- qt6ct uses Darkly; the package list gains adw-gtk-theme and darkly-bin.
2026-10-04 23:10:19 +02:00

107 lines
3.5 KiB
Lua

-- Presentation mode: every external output shows the laptop panel.
--
-- Toggled from lua/binds/shell.lua. Mirroring is just a `mirror` field on the
-- monitor rule, so switching it off clears that field and re-applies the specs
-- from lua/monitors.lua to put the Samsung back where it belongs.
--
-- Anything plugged in while mirroring is on gets mirrored too, which is the
-- usual order at a talk: press the key, then find the HDMI cable.
local monitors = require("lua/monitors")
local M = {}
local function notify(text)
hl.notification.create({ text = text, timeout = 3000 })
end
-- The panel is off while docked with the lid shut, see lua/lid.lua. Mirroring
-- a disabled output would leave every screen black.
local function builtin()
for _, mon in ipairs(hl.get_monitors()) do
if mon.name == monitors.laptop then
return mon
end
end
return nil
end
-- A mirroring output drops out of hl.get_monitors(), so the only place left
-- to find it is the panel's own `mirrors` list. That list is also the state:
-- a Lua flag would reset on every config reload while the outputs stay
-- mirrored.
local function mirroring(panel)
local names = {}
for _, mon in ipairs(panel and panel.mirrors or {}) do
table.insert(names, mon.name)
end
return names
end
-- Outputs keep their own mode while mirroring, and the panel image gets
-- rescaled to fit it every frame. The Dells at 1920x1200 flicker with that,
-- so match the panel's resolution; Hyprland falls back to the preferred mode
-- if the output cannot do it.
local function mirror_all(panel)
local mode = panel.width .. "x" .. panel.height
for _, mon in ipairs(monitors.externals_present()) do
hl.monitor({ output = mon.name, mirror = monitors.laptop, mode = mode, position = "auto" })
end
end
-- The bar, popouts and wallpaper stay on the outputs they were created for,
-- so respawn the shell the same way lua/autostart.lua starts it.
local function restart_clients()
hl.exec_cmd("sh -c 'qs kill; exec uwsm app -- qs'")
end
-- hl.monitor() only takes effect after the calling handler returns, so
-- anything that has to see the new layout goes on a timer.
local function later(fn)
hl.timer(fn, { timeout = 500, type = "oneshot" })
end
-- Clearing `mirror` alone brings the image back, but Hyprland never
-- re-announces the output to clients: hyprpaper and Quickshell keep seeing
-- only the panel, however often they restart. Cycling the output through
-- disabled makes it a fresh wl_output. Undeclared outputs get their auto
-- defaults back, apply_external() then overrides what lua/monitors.lua knows
-- better.
local function unmirror_all(names)
for _, name in ipairs(names) do
hl.monitor({ output = name, mirror = "", disabled = true })
end
later(function()
for _, name in ipairs(names) do
hl.monitor({ output = name, disabled = false, mode = "preferred", position = "auto" })
end
monitors.apply_external()
later(restart_clients)
end)
end
function M.toggle()
local panel = builtin()
local mirrored = mirroring(panel)
if #mirrored > 0 then
unmirror_all(mirrored)
notify("Mirroring off")
elseif panel then
mirror_all(panel)
later(restart_clients)
notify("Mirroring " .. monitors.laptop .. " to all screens")
else
notify("Laptop panel is off, open the lid first")
end
end
hl.on("monitor.added", function()
local panel = builtin()
if #mirroring(panel) > 0 then
mirror_all(panel)
end
end)
return M