dvcp_v2_webapp/ui/packages/ai/components/chatContent.vue

<template>
  <el-scrollbar class="chatContent">
    <div class="chat-wrapper" v-for="item in list" :key="item.id">
      <div class="chat-text" :class="{right:item.userType == '0',system:item.userType == '2'}">
        <img v-if="item.userType!=2" class="avatar" :src="avatar(item)" alt=""/>
        <div style="max-width: max(calc(100% - 140px), 220px)">
          <div class="content" v-html="markdown(item.content)"/>
          <div class="attachments pointer el-icon-paperclip" v-if="item.fileName" v-text="item.fileName" @click="handleDownload(item)"/>
        </div>
      </div>
    </div>
  </el-scrollbar>
</template>

<script>

/**
 * userType: 0-用户 1-机器人 2-系统
 */
export default {
  name: "chatContent",
  props: {
    list: {default: () => []}
  },
  data() {
    return {
      md: null
    }
  },
  computed: {
    lastMessage: v => v.list.at(-1)?.content
  },
  watch: {
    lastMessage() {
      this.$nextTick(() => this.scrollBottom())
    }
  },
  methods: {
    scrollBottom() {
      const content = this.$el.querySelector(".el-scrollbar__wrap")
      if (content) {
        content.scrollTop = content.scrollHeight - content.clientHeight
      }
    },
    avatar(item) {
      return item.avatar || (item.userType == '0' ? 'https://cdn.sinoecare.com/i/2024/06/17/666fdb275be82.png' :
          'https://cdn.sinoecare.com/i/2024/08/22/66c6dfdc3766a.png')
    },
    markdown(v) {
      return this.md?.render(v) || v
    },
    handleDownload(item) {
      window.open(item.sdkFileUrl)
    }
  },
  mounted() {
    const {hljs, markdownit} = window
    this.md = markdownit({
      highlight: function (str, lang) {
        if (lang && hljs.getLanguage(lang)) {
          try {
            return hljs.highlight(str, {language: lang}).value;
          } catch (__) {
          }
        }
        return ''; // use external default escaping
      }
    })
    this.scrollBottom()
  }
}
</script>

<style lang="scss" scoped>
.chatContent {
  :deep(.el-scrollbar__wrap) {
    overflow-x: hidden;
    background-image: url("https://cdn.sinoecare.com/i/2024/08/22/66c6dfdd76407.png");
    background-position: center center;
    background-size: 153px 182px;
    background-repeat: no-repeat;

    .content {
      pre {
        background-color: #282c34;
        color: #abb2bf;
        font-size: 12px;
        padding: 4px;
        line-height: 16px;
      }

      code {
        white-space: pre-wrap;
        width: 100%;
      }
    }
  }

  .chat-text {
    display: flex;
    gap: 12px;
    font-size: 14px;
    color: #333333;
    margin-bottom: 8px;
    padding-right: 14px;

    .content {
      position: relative;
      padding: 8px;
      border-radius: 4px;
      background: #F3F5F7;
      word-break: break-all;

      &:before {
        content: " ";
        width: 0;
        height: 0;
        border-top: 6px solid transparent;
        border-bottom: 6px solid transparent;
        border-right: 6px solid #F3F5F7;
        position: absolute;
        left: -6px;
        top: 6px;
      }
    }

    &.right {
      flex-direction: row-reverse;

      .content {
        background: #CCE2FF;

        &:before {
          left: unset;
          right: -6px;
          border-left: 6px solid #CCE2FF;
          border-right: none;
        }
      }
    }

    &.system {
      padding-right: 0;
      justify-content: center;

      .content {
        font-size: 12px;
        background: #F0F0F0;
        border-radius: 4px;
        color: #888;
        padding: 3px 6px;
        width: fit-content;

        &:before {
          display: none;
        }
      }
    }

    .attachments {
      font-size: 12px;
      background: #F0F0F0;
      border-radius: 4px;
      color: #888;
      padding: 3px 6px;
      width: fit-content;
      margin-top: 4px;

      &:hover, &:active {
        color: $primaryColor;
      }
      &:before{
        margin-right: 2px;
      }
    }
  }

  .avatar {
    width: 36px;
    height: auto;
    align-self: flex-start;
  }

  .chat-friend {
    width: 100%;
    float: left;
    margin-bottom: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
  }

  .chat-me {
    width: 100%;
    float: right;
    margin-bottom: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
  }
}
</style>