Composer expand/collapse toggle for the Web UI: a ⬆/⬇ button in the composer tool row grows the input to a tall 70vh writing view for long drafts.
Install
# from npm (prebuilt)
dsh plugin --profile web add dsh-composer-expand
# from GitHub (first run asks for allowBuilds approval — follow the hint, retry)
dsh plugin --profile web add github:13071301808/dsh-composer-expand
Any plugin you install runs third-party code with your own permissions — it can read your files, use your credentials, and reach the network, and tool approvals don’t sandbox it. GitHub-sourced plugins also run build scripts at install time — pnpm blocks those until you allow them, so an install can stop with ERR_PNPM_GIT_DEP_PREPARE_NOT_ALLOWED or ERR_PNPM_IGNORED_BUILDS; dsh prints the exact key to add under allowBuilds in your profile’s pnpm-workspace.yaml, and the install works on the next run. Allowing a build is a trust decision: only install sources you trust, and pin a commit (github:owner/repo#sha).
README
This plugin publishes its README in Chinese only.
为 DeepSeek Harness(dsh)打造的 composer 展开/收起插件。在 composer 工具行放一个 ⬆/⬇ 按钮,点击在「默认封顶高度」与「70vh 高书写视图」之间切换,长草稿不再挤在一个小窗口里滚动。
为什么需要
DSH 默认把 composer 文本框封顶在一个较小高度(seat 上定义了 --dsh-composer-text-max-height: 336px,限制文本框滚动容器)。草稿变长后,只能在小窗口里滚动几行。本插件对短草稿保持默认行为,写长 prompt 时一键切换到大视图。
功能
- ⬆ 按钮在 composer 工具行 — 位于
conversation.input.right(发送按钮旁官方预留的可点击控件位)。 - 展开到 70vh — 在会话滚动容器上切换 CSS class;composer 输入区同步放宽
max-height。再点一次恢复默认封顶高度。 - 展开最小高度 300px — 输入内容较少时也保持足够的书写空间;内容变多后最高仍受
70vh限制。 - 展开状态回车换行 — 展开时普通回车只插入换行,不触发发送;
Ctrl/Cmd + Enter等带修饰键快捷键仍可用于发送;斜杠 / @ 触发菜单打开时不拦截,回车正常选候选。 - 浏览器内持久化 — 状态写入
localStorage[dsh-composer-expand:expanded],刷新页面、切换工作区都保留。 - 展开状态自愈 — 展开期间监听 DOM 重建:即使 harness 重建了会话滚动容器或 composer 卡片(切视图、切会话),展开样式与"回车换行"行为也会自动重新应用到新的输入框上。
- 中英文双语 — 按钮文案与提示跟随 DSH 的
locale服务。 - 纯前端 — 无自定义协议、无 host 命令、无 LLM 调用、不进会话日志。
- 不依赖构建哈希 — CSS 锚定 DSH 稳定的 data 属性(
data-conversation-scroll/data-composer-seat/data-input-scroll/data-composer-input,并保留 textarea 时代的data-input-mirror),同时兼容 Lexical 编辑器与旧 textarea 两代 composer,不碰每次构建都会变的哈希类名。 - Lexical composer 适配 — 桌面版 0.1.2-alpha.1+ 的 composer 已换成 Lexical contenteditable:本插件改用 composer seat 上的 capture 阶段 keydown 拦截普通回车(先于 Lexical 的 bubble 监听),展开时回车仍是换行而不是发送。
安装
通过 npm 安装(推荐)
dsh plugin --profile web add dsh-composer-expand
已发布到 npm,包含预构建产物,无需本地构建。
源码本地开发
dsh CLI 必须在 PATH 上。若你只用 npx 跑过 harness,dsh 尚未全局安装,会报 zsh: command not found: dsh——先全局安装:
npm install -g @deepseek-ai/dsh
从本仓库安装:
# 1. 构建产物(tsdown 生成 lib/index.js + lib/client.js)
pnpm install
pnpm build
# 2. 加入 web profile
dsh plugin --profile web add ./
# 3. 以该 profile 重启 harness
dsh --profile web
重启后 ⬆ 按钮出现在 composer 工具行(发送按钮旁)。可在 设置 → 插件 中确认 dsh-composer-expand 已列出。
工作原理
| 环节 | 机制 |
|---|---|
| 按钮位 | conversation.input.right 列表槽位(会话作用域);ctx.slots.inject 注册单个 React 组件 |
| 切换状态 | React useState,初始值读 localStorage[dsh-composer-expand:expanded];变更时写回 localStorage |
| DOM 挂钩 | document.querySelector('[data-conversation-scroll]').classList.toggle('dsh-composer-expand-on', on) — 会话滚动容器上的官方稳定属性 |
| CSS 契约 | .dsh-composer-expand-on 在 [data-composer-seat] 上覆盖 --dsh-composer-text-max-height(真正的 336px 上限)为 var(--dsh-composer-expand-height)(默认 70vh),并给 [data-input-mirror] 设 min-height: 300px,即使内容很少输入框也会明显变高 |
| 硬依赖 | export const inject = ['slots', 'locale'] — 均为官方 harness 客户端服务 |
| 无 host 命令 | lib/index.js 是空 apply(),整个插件纯客户端 |
构建
pnpm install
pnpm build # tsdown: lib/index.js(ESM host)+ lib/client.js(ModuleLoader 客户端 bundle)
已知限制
- 状态按浏览器记忆,不按会话。DSH 同一时刻只渲染一个 composer,目前无感知差异;若未来同时渲染多个,需要收窄 DOM 选择器。
- 展开高度固定为
70vh。未来版本可在设置卡片里提供高度滑块。 --dsh-composer-text-max-height(336px)是 DSH 的设计选择。本插件只放宽 composer 文本框容器,不影响其他 disclosure 行。
License
MIT
Links
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