layui/src/module/textarea/index.vue

<template>
  <textarea
    :value="modelValue"
    :placeholder="placeholder"
    :name="name"
    :disabled="disabled"
    class="layui-textarea"
    :class="{ 'layui-disabled': disabled }"
    @input="onInput"
    @focus="onFocus"
    @blur="onBlur"
  />
</template>

<script setup name="LayTextarea" lang="ts">
import { defineProps, defineEmits } from 'vue'

const props = defineProps<{
  name?: string
  modelValue?: string
  placeholder?: string
  disabled?: boolean
}>()

const emit = defineEmits(['update:modelValue', 'input', 'focus', 'blur'])

const onInput = function (event: InputEvent) {
  const inputElement = event.target as HTMLInputElement
  emit('update:modelValue', inputElement.value)
  emit('input', inputElement.value)
}

const onFocus = function (event: FocusEvent) {
  emit('focus', event)
}

const onBlur = function () {
  emit('blur')
}
</script>