组合框(Combobox)

npm install @platejs/combobox

import { createSlatePlugin } from 'platejs';

const TagInputPlugin = createSlatePlugin({
  key: 'tag_input',
  editOnly: true,
  node: {
    isElement: true,
    isInline: true,
    isVoid: true,
  },
});

import { createTSlatePlugin, type PluginConfig } from 'platejs';
import { 
  type TriggerComboboxPluginOptions, 
  withTriggerCombobox 
} from '@platejs/combobox';

type TagConfig = PluginConfig<'tag', TriggerComboboxPluginOptions>;

export const TagPlugin = createTSlatePlugin<TagConfig>({
  key: 'tag',
  node: { isElement: true, isInline: true, isVoid: true },
  options: {
    trigger: '#',
    triggerPreviousCharPattern: /^\s?$/,
    createComboboxInput: () => ({
      children: [{ text: '' }],
      type: 'tag_input',
    }),
  },
  plugins: [TagInputPlugin],
}).overrideEditor(withTriggerCombobox);

import { PlateElement, useFocused, useReadOnly, useSelected } from 'platejs/react';
import {
  InlineCombobox,
  InlineComboboxContent,
  InlineComboboxEmpty,
  InlineComboboxInput,
  InlineComboboxItem,
} from '@/components/ui/inline-combobox';
import { cn } from '@/lib/utils';

const tags = [
  { id: 'frontend', name: '前端', color: 'blue' },
  { id: 'backend', name: '后端', color: 'green' },
  { id: 'design', name: '设计', color: 'purple' },
  { id: 'urgent', name: '紧急', color: 'red' },
];

export function TagInputElement({ element, ...props }) {
  return (
    <PlateElement as="span" {...props}>
      <InlineCombobox element={element} trigger="#">
        <InlineComboboxInput />
        
        <InlineComboboxContent>
          <InlineComboboxEmpty>未找到标签</InlineComboboxEmpty>
          
          {tags.map((tag) => (
            <InlineComboboxItem
              key={tag.id}
              value={tag.name}
              onClick={() => {
                // 插入实际标签元素
                editor.tf.insertNodes({
                  type: 'tag',
                  tagId: tag.id,
                  children: [{ text: tag.name }],
                });
              }}
            >
              <span 
                className={`w-3 h-3 rounded-full bg-${tag.color}-500 mr-2`}
              />
              #{tag.name}
            </InlineComboboxItem>
          ))}
        </InlineComboboxContent>
      </InlineCombobox>
      
      {props.children}
    </PlateElement>
  );
}

export function TagElement({ element, ...props }) {
  const selected = useSelected();
  const focused = useFocused();
  const readOnly = useReadOnly();

  return (
    <PlateElement
      {...props}
      className={cn(
        'inline-block rounded-md bg-primary/10 px-1.5 py-0.5 align-baseline text-sm font-medium text-primary',
        !readOnly && 'cursor-pointer',
        selected && focused && 'ring-2 ring-ring'
      )}
      attributes={{
        ...props.attributes,
        contentEditable: false,
        'data-slate-value': element.value,
      }}
    >
      #{element.value}
      {props.children}
    </PlateElement>
  );
}

import { createPlateEditor } from 'platejs/react';
import { TagPlugin, TagInputPlugin } from './tag-plugin';
import { TagElement, TagInputElement } from './tag-components';

const editor = createPlateEditor({
  plugins: [
    // ...其他插件
    TagPlugin.configure({
      options: {
        triggerQuery: (editor) => {
          // 在代码块中禁用
          return !editor.api.some({ match: { type: 'code_block' } });
        },
      },
    }).withComponent(TagElement),
    TagInputPlugin.withComponent(TagInputElement),
  ],
});