复用对评论和对文章回复的弹层 popup- vant2

基本样式：

ps：当message 即输入的内容的长度为 0 的时候，按钮禁止使用 ；

<template>
  <div class="comment-post">
    <van-field
      class="post-field"
      v-model="message"
      rows="2"
      autosize
      type="textarea"
      maxlength="50"
      placeholder="请输入留言"
      show-word-limit
    />
    <van-button class="post-btn">发布</van-button>
  </div>
</template>

<script>
export default {
  name: "CommentPost",
  data() {
    return {
      message: "",
    };
  },
  computed: {},
  watch: {},
  created() {},
  mounted() {},
  methods: {},
};
</script>

<style scoped lang="less">
.comment-post {
  display: flex;
  align-items: center;
  padding: 32px 0 32px 32px;
  .post-field {
    background-color: #f5f7f9;
  }
  .post-btn {
    width: 150px;
    border: none;
    padding: 0;
    color: #6ba3d8;
    &::before {
      display: none;
    }
  }
}
</style>

父组件位置控制 popup 显示 ：对文章评论，传 文章的 id ；

    <!-- --------------对文章进行评论 START--------------------- -->
    <van-popup v-model="isPostShow" position="bottom">
      <!-- 传 文章的 id -->
      <commentPost :target-id="articleInfo.art_id" />
    </van-popup>
    <!-- --------------对文章进行评论 END--------------------- -->

 子组件实现接口发布评论：

<template>
  <div class="comment-post">
    <van-field
      class="post-field"
      v-model="message"
      rows="2"
      autosize
      type="textarea"
      maxlength="50"
      placeholder="请输入留言"
      show-word-limit
    />
    <van-button
      :disabled="message.length === 0"
      class="post-btn"
      @click="submit"
      >发布</van-button
    >
  </div>
</template>

<script>
import { addCommentApi } from "@/api/Article";
export default {
  name: "CommentPost",
  props: {
    // 目标文章的 id 或者 评论的 id
    targetId: {
      type: [String, Number],
      required: true,
    },
  },
  data() {
    return {
      message: "",
    };
  },
  methods: {
    async submit() {
      if (!this.$store.state.user) return this.$toast.fail("’请登录才可以操作");
      try {
        // 发起请求
        await addCommentApi({
          target: this.targetId,
          content: this.message,
          art_id: null,
        });
      } catch (error) {
        console.log(error);
      }
    },
  },
};
</script>

<style scoped lang="less">
.comment-post {
  display: flex;
  align-items: center;
  padding: 32px 0 32px 32px;
  .post-field {
    background-color: #f5f7f9;
  }
  .post-btn {
    width: 150px;
    border: none;
    padding: 0;
    color: #6ba3d8;
    &::before {
      display: none;
    }
  }
}
</style>