Module panel 

Desktop Panel (Taskbar) with Layer-Shell Integration

Renders a taskbar at the bottom of the screen showing workspace indicators, open windows, system clock with date, and system tray area.

Layer-Shell Protocol

The panel uses the wlr-layer-shell protocol to anchor itself to the bottom edge of the output. Layer-shell surfaces are rendered above normal windows and below overlay surfaces (e.g., notifications).

Layer ordering (bottom to top):

• Background: desktop wallpaper
• Bottom: desktop widgets
• Top: panels, docks (this panel)
• Overlay: lock screen, notifications

The panel requests exclusive zone equal to its height, so the compositor reserves that space and prevents normal windows from overlapping the panel area.

Layer-shell types, enum variants, and panel configuration fields define the complete panel API. Unused items are retained for protocol completeness.

Structs

LayerSurfaceConfig

Layer-shell surface configuration.

Panel

Desktop panel state.

Enums

LayerShellAnchor

Layer-shell anchor edges (bitmask).

LayerShellLayer

Layer-shell layer (from wlr-layer-shell protocol).

Constants

PANEL_HEIGHT

Panel height in pixels.

Functions

init

Initialize the desktop panel.

with_panel

Execute a function with the panel.