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<script>
import VirtualList from 'vue-virtual-scroll-list';

export default {
  name: 'SmartVirtualList',
  components: { VirtualList },
  props: {
    size: { type: Number, required: true },
    length: { type: Number, required: true },
    remain: { type: Number, required: true },
    rtag: { type: String, default: 'div' },
    wtag: { type: String, default: 'div' },
    wclass: { type: String, default: null },
  },
};
</script>
<template>
  <virtual-list
    v-if="length > remain"
    v-bind="$attrs"
    :size="remain"
    :remain="remain"
    :rtag="rtag"
    :wtag="wtag"
    :wclass="wclass"
    class="js-virtual-list"
  >
    <slot></slot>
  </virtual-list>
  <component
    :is="rtag"
    v-else
    class="js-plain-element"
  >
    <component
      :is="wtag"
      :class="wclass"
    >
      <slot></slot>
    </component>
  </component>
</template>