bootstrap-vue/src/components/card/card-img-lazy.js

BootstrapVue, with over 40 plugins and more than 80 custom components, custom directives, and over 300 icons, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-AR

import Vue from '../../utils/vue'
import { omit } from '../../utils/object'
import { mergeData } from 'vue-functional-data-merge'
import { BImgLazy, props as imgLazyProps } from '../image/img-lazy'

// Copy of `<b-img-lazy>` props, and remove conflicting/non-applicable props
// The `omit()` util creates a new object, so we can just pass the original props
const lazyProps = omit(imgLazyProps, [
  'left',
  'right',
  'center',
  'block',
  'rounded',
  'thumbnail',
  'fluid',
  'fluidGrow'
])

export const props = {
  ...lazyProps,
  top: {
    type: Boolean,
    default: false
  },
  bottom: {
    type: Boolean,
    default: false
  },
  start: {
    type: Boolean,
    default: false
  },
  left: {
    // alias of 'start'
    type: Boolean,
    default: false
  },
  end: {
    type: Boolean,
    default: false
  },
  right: {
    // alias of 'end'
    type: Boolean,
    default: false
  }
}

// @vue/component
export const BCardImgLazy = /*#__PURE__*/ Vue.extend({
  name: 'BCardImgLazy',
  functional: true,
  props,
  render(h, { props, data }) {
    let baseClass = 'card-img'
    if (props.top) {
      baseClass += '-top'
    } else if (props.right || props.end) {
      baseClass += '-right'
    } else if (props.bottom) {
      baseClass += '-bottom'
    } else if (props.left || props.start) {
      baseClass += '-left'
    }

    // False out the left/center/right props before passing to b-img-lazy
    const lazyProps = { ...props, left: false, right: false, center: false }
    return h(
      BImgLazy,
      mergeData(data, {
        class: [baseClass],
        props: lazyProps
      })
    )
  }
})