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codemirror-placeholder-plugin

v0.0.1

Published

CodeMirror 6 插件,用于创建可编辑的占位符区域

Readme

CodeMirror 占位符插件

这是一个用于 CodeMirror 6 的插件,可以创建可编辑的占位符区域。 项目结构图

安装

npm install codemirror-placeholder-plugin

使用


import { EditorView } from '@codemirror/view';
import CodeMirror from '@uiw/react-codemirror';
import { createPlaceholderPlugin, createPlaceholderTheme } from 'codemirror-placeholder-plugin';

// 定义占位符配置
const placeholderConfig = [
  { id: '0', begin: '[left:0]', end: '[right:0]', placeholder: '请输入内容' },
  { id: '1', begin: '[left:1]', end: '[right:1]', placeholder: '请输入内容1' }
];

// 在 React 组件中使用
function MyEditor() {
  const extensions = [
    createPlaceholderPlugin(placeholderConfig),
    createPlaceholderTheme(),
    EditorView.lineWrapping
  ];

  return (
    <CodeMirror
      value="这是一段示例文本,包含[left:0]占位符内容[right:0]和[left:1]另一个占位符[right:1]"
      extensions={extensions}
    />
  );
}

自定义主题

你可以通过自定义主题来修改占位符的样式。以下是一个示例:

import { createPlaceholderTheme } from 'codemirror-placeholder-plugin';

const customTheme = createPlaceholderTheme({
  placeholder: {
    backgroundColor: 'rgba(255, 200, 200, .2)',
    color: 'red'
  },
  slotContent: {
    backgroundColor: 'rgba(200, 255, 200, .2)',
    color: 'green'
  }
});

// 在扩展中使用
const extensions = [
  createPlaceholderPlugin(placeholderConfig),
  customTheme,
  // ...其他扩展
];

API

createPlaceholderPlugin(config)

创建一个占位符插件实例。

  • config : 占位符配置数组,每个配置包含:
    • id : 唯一标识符
    • begin : 开始标记
    • end : 结束标记
    • placeholder : 当内容为空时显示的占位符文本

createPlaceholderTheme(customTheme)

创建占位符主题。

  • customTheme : 可选的自定义主题对象,可以包含:
    • placeholder : 占位符样式
    • slotContent : 内容区域样式
    • placeholderBegin : 开始标记样式
    • placeholderEnd : 结束标记样式