bootstrap-vue/esm/components/table/helpers/mixin-caption.js

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import { htmlOrText } from '../../../utils/html';
export default {
  props: {
    // `caption-top` is part of table-redere mixin (styling)
    // captionTop: {
    //   type: Boolean,
    //   default: false
    // },
    caption: {
      type: String,
      default: null
    },
    captionHtml: {
      type: String
    }
  },
  computed: {
    captionId: function captionId() {
      // Even though `this.safeId` looks like a method, it is a computed prop
      // that returns a new function if the underlying ID changes
      return this.isStacked ? this.safeId('_caption_') : null;
    }
  },
  methods: {
    renderCaption: function renderCaption() {
      var h = this.$createElement; // Build the caption

      var $captionSlot = this.normalizeSlot('table-caption');
      var $caption = h();

      if ($captionSlot || this.caption || this.captionHtml) {
        var data = {
          key: 'caption',
          attrs: {
            id: this.captionId
          }
        };

        if (!$captionSlot) {
          data.domProps = htmlOrText(this.captionHtml, this.caption);
        }

        $caption = h('caption', data, [$captionSlot]);
      }

      return $caption;
    }
  }
};