feat: split the bar in two on DP-3

DP-3 is rotated, so a bar there is 1080px wide rather than 1920, and one bar
holding every module was too crowded. Status sits on top now, the desktop
itself along the bottom: workspaces on the left, open windows on the right.
Both bars are one waybar process reading one stylesheet, because waybar takes
a top-level array of bars, so the two cannot drift apart.

Presentation mode is the statusctl-backed module the DP-1 bar already runs,
rather than the wb-idle module written for this bar. It talks to files under
XDG_RUNTIME_DIR instead of to quickshell, so it keeps working while the shell
is down, and it already emits a state class, so the glyphs are simply dropped
and the icon chosen in CSS. wb-idle and its module are gone.

The module needs a format of one space. It defaults to "{text}", statusctl
emits an empty text, and waybar draws no widget at all for a custom module
whose formatted output is empty: not an empty pill, no pill. That is the same
trap the launcher hit, and it cost a wrong diagnosis on the way: a min-height
was added first on the theory that the pill was collapsing, which was treating
a symptom of a widget that did not exist. A forced red background proved it
was never drawn at all.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

1 files changed, 10 insertions, 13 deletions

diff --git a/bin/wb-icon b/bin/wb-icon
index 9c29c60..b8f91cc 100755
--- a/bin/wb-icon
+++ b/bin/wb-icon
@@ -10,7 +10,6 @@
 #
 #     wb-icon volume     # reads wpctl, prints the matching icon
 #     wb-icon mic
-#     wb-icon idle <activated|deactivated>
 #     wb-icon --selftest # every name this bar asks for must resolve
 #
 # Icons keep their own colours: this desktop's icon theme draws them with
@@ -44,10 +43,6 @@ ICONS = {
         "muted": "microphone-sensitivity-muted",
         "on": "audio-input-microphone",
     },
-    "idle": {
-        "activated": "x-office-presentation",
-        "deactivated": "preferences-desktop-screensaver",
-    },
 }
 
 
@@ -116,9 +111,18 @@ def selftest():
     ]
     clock_icons = ["x-office-calendar", "clock"]
 
+    # Presentation mode is a custom module: statusctl emits the state as a
+    # class and modules.css picks the icon, so these names appear nowhere in
+    # this file. They are still the bar's icons, so they are checked here.
+    presentation_icons = [
+        "preferences-desktop-screensaver",  # off
+        "x-office-presentation",            # on
+        "dialog-warning",                   # no state file
+    ]
+
     names = sorted(
         {n for group in ICONS.values() for n in group.values()}
-        | set(workspace_icons) | set(clock_icons)
+        | set(workspace_icons) | set(clock_icons) | set(presentation_icons)
     )
     missing = [n for n in names if not lookup(n)]
     for n in names:
@@ -156,13 +160,6 @@ def main(argv):
         label = "muted" if state == "muted" else f"{pct}%"
         return emit(ICONS["mic"][state], f"Microphone: {label}")
 
-    if what == "idle":
-        state = argv[2] if len(argv) > 2 else "deactivated"
-        state = state if state in ICONS["idle"] else "deactivated"
-        on = state == "activated"
-        return emit(ICONS["idle"][state],
-                    f"Presentation mode: {'on' if on else 'off'}")
-
     print(f"wb-icon: unknown subject {what!r}", file=sys.stderr)
     return 2