Method insertTextAtRange

src/trix/models/document.js:126–137

(text, range)

  }

  insertTextAtRange(text, range) {
    range = normalizeRange(range)
    const [ startPosition ] = range
    const { index, offset } = this.locationFromPosition(startPosition)

    const document = this.removeTextAtRange(range)
    return new this.constructor(
      document.blockList.editObjectAtIndex(index, (block) =>
        block.copyWithText(block.text.insertTextAtPosition(text, offset))
      )
    )
  }

  removeTextAtRange(range) {
    let blocks