# dsh-composer-resize

**中文简介**

`dsh-composer-resize` 是 [DeepSeek Harness](https://github.com/deepseek-ai/deepseek-harness)（DSH）网页端的一个轻量输入框拖拽调节插件。它在输入框卡片的上边缘提供一个小拖拽把手：**向上拖，输入框变高；向下拖，输入框变矮**。拖拽过程中视图始终锚定在文本底部，长草稿缩小后依然能看到最后几行，不会出现底部行被裁切的问题。插件为纯前端实现——不调用模型、不执行宿主命令、不写入会话日志，开箱即用。

**English Intro**

`dsh-composer-resize` is a lightweight drag-to-resize plugin for the [DeepSeek Harness](https://github.com/deepseek-ai/deepseek-harness) (DSH) web composer. It puts a small handle on the **top edge** of the input card: **drag up to make the composer taller, drag down to make it shorter**. While resizing, the view stays bottom-anchored, so shrinking a long draft keeps the last lines visible and nothing gets clipped. Purely client-side — no model calls, no host commands, nothing written to session logs.

---

## Features / 功能

- **Drag up = taller, drag down = shorter** — the drag direction matches the deformation direction.
  **向上拖=变高，向下拖=变矮** — 拖动方向与变形方向一致。
- **Bottom-anchored scrolling** while resizing; long drafts keep their last lines in view.
  **拖拽时底部锚定**，长草稿缩小后仍显示最后几行。
- Range: 52 px to 75% of the viewport height (720 px cap).
  范围：52px ~ 75% 视口高度（上限 720px）。
- Pure browser-side plugin using stable DSH `data-*` attributes.
  纯浏览器端插件，锚定 DSH 稳定的 `data-*` 属性。

## Compatibility / 兼容性

- DSH `0.1.0-rc.6` web UI (`data-composer-card` / `data-input-scroll`).
- Chromium-based browsers recommended (Pointer Events).
  建议使用 Chrome / Edge 等 Chromium 内核浏览器。

## Install / 安装

### From GitHub / 从 GitHub 安装

```sh
dsh plugin --profile web add github:rosefinch539/dsh-composer-resize
```

Restart DSH, or hard-refresh the web page (`Ctrl+F5`) if `/plugins` is served with `Cache-Control: no-cache`.
重启 DSH；若服务端 `/plugins` 响应为 `no-cache`，直接强刷网页（Ctrl+F5）即可。

### From the release tarball / 用 Release 里的 tgz 安装

```sh
dsh plugin --profile web add https://github.com/rosefinch539/dsh-composer-resize/releases/download/v1.1.0/dsh-composer-resize-1.1.0.tgz
```

## Uninstall / 卸载

```sh
dsh plugin --profile web remove dsh-composer-resize
```

## How it works / 工作原理

- The node half is a no-op; the browser half is served at `/plugins/dsh-composer-resize/client.js`.
  宿主侧为空实现；浏览器侧从 `/plugins/dsh-composer-resize/client.js` 加载。
- It injects a `<style>` block plus one `[data-resize-handle]` element per `[data-composer-card]`.
  注入一段样式，并给每个输入框卡片添加一个 `[data-resize-handle]` 拖拽把手。
- Pointer drag sets inline `height`/`max-height` on `[data-input-scroll]` and pins `scrollTop` to the bottom on every frame.
  拖拽时给 `[data-input-scroll]` 设置内联高度，并在每一帧把 `scrollTop` 钉在底部。
- A `MutationObserver` re-attaches the handle if React re-renders the composer.
  通过 `MutationObserver` 在 React 重渲染后自动重新挂载把手。

## License / 许可证

MIT