dsh-plugin-wallpaper

Upload a local image, crop it to the workspace aspect ratio, and set it as the desktop background of the DeepSeek Harness Web surface — all from a dedicated section in Settings.

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Features

• A dedicated Wallpaper page under Settings: preview, upload, replace, and remove.
• A crop dialog after upload: drag to move the box, eight handles to resize. The crop aspect is locked to the current workspace window by default (unlockable), with an optional export blur.
• Applies instantly — no reload needed; restored automatically after a page refresh.
• Tunable live settings: fit mode (cover / contain / center / stretch), panel opacity (how much the wallpaper shows through the app panels), and overlay dimming.
• Cropped and compressed in the browser (WebP, longest edge ≤ 2560 px, quality 0.85); only the final result is uploaded.
• Settings persist in the standard user settings document ($DSH_HOME/settings.yaml, wallpaper section) and can be hand-edited.

Install

From npm:

dsh plugin --profile web add dsh-plugin-wallpaper

From GitHub (the prepare script builds the bundles on install):

dsh plugin --profile web add github:JerryPhoenixCKY/dsh-plugin-wallpaper

Local development:

dsh plugin --profile web add link:<absolute path to this repo>

Then restart dsh web (plugins load at startup):

dsh web   # or: dsh --profile web

Remove: dsh plugin --profile web remove dsh-plugin-wallpaper, then restart.

Usage

1. Open Settings (the gear in the sidebar) → Wallpaper.
2. Click Upload image and pick a local image (≤ 20 MB).
3. Frame the region in the crop dialog, optionally blur it, then Apply as background.
4. Tune Panel opacity and Overlay dimming to taste; Remove wallpaper restores the default look.

Note: uploading and editing require opening the page from this machine (localhost). Other machines on the LAN can see the background but writes are refused — the write channel only trusts loopback.

Storage

$DSH_HOME/storages/wallpaper/

• wallpaper.webp — the latest uploaded crop result.
• wallpaper.json — { revision, width, height, updatedAt }; the revision is server-authoritative and monotonic.
• Display settings (enabled / fit / overlay opacity / panel opacity / revision) live in the wallpaper section of $DSH_HOME/settings.yaml.

Architecture

One dual-face bundle (host + browser):

• Host half (src/index.ts → lib/index.js):
  • ctx.settings.register("wallpaper", schema) — validation, defaults, and persistence. (The rc.6 settings wire allowlist does not cover third-party namespaces, so the browser side never rides the settings API.)
  • The /wallpaper generic-RPC channel (loopback-only): config/get, config/set, put, remove, info.
  • GET /plugins/wallpaper/image?v=<revision> — serves the image keyed by revision (immutable caching; stale revisions 404).
• Browser half (src/client/** → lib/client.js):
  • Registers the Wallpaper page into the settings.section slot (upload / crop / preview / controls).
  • Reads the wire handle via ctx.get("connection") (the official client-plugin pattern) and reads/writes config through WallpaperStore, a coalescing writer over the RPC channel.
  • attachBackground projects the config onto the document: the body background image, the theme tokens (--dsw-alias-bg-*) made translucent, and the dimming gradient — kept in sync with theme/change.

Development

pnpm install
pnpm typecheck     # tsc --noEmit
pnpm build         # esbuild → lib/index.js + lib/client.js

The client bundle follows the web shell module protocol (window.__ModuleLoader__.load({ id, factory })); its externals match the PLATFORM_MODULES seed table of @deepseek-ai/dsh-client-web plus the packages declared in dsh.client.inject. CSS Modules are compiled inline by scripts/build.mjs and injected with the official <style data-plugin-css> convention.

After changes: pnpm build, then restart dsh web.

Changelog & Roadmap

• CHANGELOG.md — release history (开发日志)
• ROADMAP.md — planned work (路线图/日程)

License

MIT