lihang-lh/dsh-moon-light

A marquee-style mood-light ring around the DSH web UI edge. It reads the current session state and automatically switches the light color and rhythm:

Session state	Light	Signal (host-published session summary)
Agent is working	🟢 Green flowing band + flash	summary.running === true
Done / idle (nothing pending)	🩷 Pink band (steady)	not running, not blank, nothing pending
Needs attention (approval / plan review / question)	🟡 Yellow band (slow pulse, highest priority)	summary.pendingInteraction set
No session / blank session / disabled	Off	no current session or blank === true

The ring is purely decorative (pointer-events: none) and never blocks interaction; animations stop automatically under prefers-reduced-motion.

Settings

A "氛围灯" (Mood Light) page is registered in the DSH settings panel (Settings → Mood Light). Every parameter is adjustable live and persisted to localStorage:

• Enabled toggle
• Ring width: 1–40 px slider
• Opacity: 5%–100% slider
• Style: marquee (rotating band) / linear gradient (static)
• Band style (marquee only): segmented marquee (classic) / smooth gradient
• Rotation speed: 0–60 s per revolution (0 = static)
• Flash: 0–10 s per cycle (0 = steady; per-state override available)
• State colors: three color pickers each for running / done / pending
• Reset to defaults

Install

dsh plugin --profile web add "github:lihang-lh/dsh-moon-light"

Restart dsh web after installing — the client plugin catalog is composed at startup. Settings made in the panel are kept in localStorage and survive restarts.

For development, install from a local checkout with link: (symlink — edits take effect after restart, no reinstall):

dsh plugin --profile web add "link:/your/local/path/dsh-moon-light"

Uninstall:

dsh plugin --profile web remove dsh-moon-light

Config priority

localStorage (settings panel) > plugin row config (cordis.patch.yml / profile patch) > built-in defaults. Third-party namespaces are not exposed by the host settings wire, so user configuration lives in localStorage (same pattern as dsh-skin).

Override deployment defaults via a profile patch without touching the plugin:

# ~/.dsh/profiles/web/cordis.patch.yml
- id: mood-light
  config:
    width: 12
    rotate: 24
    gradientType: 'linear'
    states:
      running:
        colors: ['#22c55e', '#4ade80', '#bbf7d0']
        flash: 0.8

How it works

• Hand-written client bundle following the DSH client-modules protocol (window.__ModuleLoader__.load({ id, factory })); depends only on the platform seed module react and collaborates through the slots service. No build step.
• Renders into shell.overlay (frame-level overlay, click-through) and settings.section (settings page), both registered under id mood-light.
• Session state comes from the useSessions snapshot selector standard prop: SessionSummary.running / blank / pendingInteraction map to the running / success / warning modes (resolveMode in client.js).
• The ring is a position: fixed; inset: 0 layer with padding + mask-composite: exclude carving out the outer band; an inner inset: -50% rotating conic-gradient disc is clipped into the band by the mask (rotate controls the marquee speed; segmented mode uses hard color stops, smooth mode uses a continuous gradient; flash pulses the overall brightness).

Development

node --check client.js        # bundle syntax
node scripts/test.cjs         # state mapping / config merge / persistence tests

A standalone preview is available at docs/preview.html — open it in a browser to see the marquee effect and tune the parameters without installing anything.

Files

File	Purpose
index.js	Host entry (empty apply, satisfies the Cordis loader)
client.js	Browser-side marquee mood light + settings page (core)
cordis.patch.yml	Plugin row + deployment default config
docs/preview.html	Standalone effect preview (no install needed)
scripts/test.js	Logic tests (state mapping / config / persistence)
.github/workflows/ci.yml	Syntax + test CI
package.json	dsh.bundle / dsh.client declarations