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@kunlunxu/wf-extension-base

v3.1.0

Published

WriteFlow 的基础行为扩展,提供撤销/重做、通用 wrapping 节点插入、文档变更事件和 gap cursor。

Readme

@kunlunxu/wf-extension-base

WriteFlow 的基础行为扩展,提供撤销/重做、通用 wrapping 节点插入、文档变更事件和 gap cursor。

注册

import { Base } from '@kunlunxu/wf-extension-base';

const extensions = [Base];

多数结构扩展依赖 insertWrapping,实际项目通常都应注册 Base。

Commands

| 命令 | 作用 | 返回值 | | -------------------------------------------- | ------------------------------------------- | --------- | | writeFlow.commands.undo() | 撤销最近一次历史操作 | boolean | | writeFlow.commands.redo() | 重做最近一次撤销 | boolean | | writeFlow.commands.insertWrapping(options) | 用指定 wrapping node 包裹当前选区或指定范围 | boolean |

insertWrapping 示例:

writeFlow.commands.insertWrapping({
  nodeType: writeFlow.schema.nodes.blockquote,
  start: writeFlow.state.selection.from,
  end: writeFlow.state.selection.to,
  attrs: {},
});

Helpers

| Helper | 作用 | | ---------------------------------- | ---------------------------------------------- | | writeFlow.helpers.isAtEndOfDoc() | 判断当前选区终点是否位于文档最后一个可编辑位置 |

快捷键

| 平台 | 撤销 | 重做 | | --------------- | -------- | -------------- | | macOS | Cmd-z | Cmd-Shift-z | | Windows / Linux | Ctrl-z | Ctrl-Shift-z |

本包不处理 Enter、Shift-Enter、方向键或结构退出。

文档变更事件

文档发生实际变更后会触发 WFEventKeys.docChange:

import { WFEventKeys } from '@kunlunxu/wf-core';

const handleChange = ({ doc, value }) => {
  console.log(doc, value);
};

writeFlow.on(WFEventKeys.docChange, handleChange);
writeFlow.off(WFEventKeys.docChange, handleChange);

事件参数包含:

  • writeFlow:当前编辑器实例。
  • doc:最新 ProseMirror 文档节点。
  • value:doc.toJSON() 的结果。

纯选区变化不会触发该事件。

Gap Cursor

本包注册 prosemirror-gapcursor,允许在水平线、图片等不可直接放置文本光标的块节点之间创建 gap cursor。相关方向键和点击行为由 ProseMirror 插件处理,本包没有额外公开命令。