@tiptap/core/src/commands/joinItemForward.ts

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import { joinPoint } from '@tiptap/pm/transform'

import { RawCommands } from '../types.js'

declare module '@tiptap/core' {
  interface Commands<ReturnType> {
    joinItemForward: {
      /**
       * Join two items Forwards.
       * @example editor.commands.joinItemForward()
       */
      joinItemForward: () => ReturnType
    }
  }
}

export const joinItemForward: RawCommands['joinItemForward'] = () => ({
  state,
  dispatch,
  tr,
}) => {
  try {
    const point = joinPoint(state.doc, state.selection.$from.pos, +1)

    if (point === null || point === undefined) {
      return false
    }

    tr.join(point, 2)

    if (dispatch) {
      dispatch(tr)
    }

    return true
  } catch (e) {
    return false
  }
}