<template>
  <div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
    <div class="pswp__bg"></div>
    <div class="pswp__scroll-wrap">
      <div class="pswp__container">
        <div class="pswp__item"></div>
        <div class="pswp__item"></div>
        <div class="pswp__item"></div>
      </div>
      <div class="pswp__ui pswp__ui--hidden">
        <div class="pswp__top-bar">
          <div class="pswp__counter"></div>
          <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
          <button class="pswp__button pswp__button--share" title="Share"></button>
          <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
          <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
          <div class="pswp__preloader">
            <div class="pswp__preloader__icn">
              <div class="pswp__preloader__cut"><div class="pswp__preloader__donut"></div></div>
            </div>
          </div>
        </div>
        <div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
          <div class="pswp__share-tooltip"></div>
        </div>
        <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)"></button>
        <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)"></button>
        <div class="pswp__caption">
          <div class="pswp__caption__center"></div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import 'photoswipe/dist/photoswipe.css'
import 'photoswipe/dist/default-skin/default-skin.css'
import PhotoSwipe from 'photoswipe/dist/photoswipe'
import PhotoSwipeDefaultUI from 'photoswipe/dist/photoswipe-ui-default'
export default {
  methods: {
    open (index, items, options = {
      // captionEl: false,
      fullscreenEl: true,
      history: false,
      shareEl: false,
      tapToClose: true
    }) {
      const opts = Object.assign({
        index: index,
        getThumbBoundsFn (index) {
          const thumbnail = document.querySelectorAll('.preview-img-item')[index]
          const pageYScroll = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0
          const rect = thumbnail.getBoundingClientRect()
          return {
            x: rect.left,
            y: rect.top + pageYScroll,
            w: rect.width
          }
        }
      }, options)
      this.photoswipe = new PhotoSwipe(this.$el, PhotoSwipeDefaultUI, items, opts)
      this.photoswipe.init()
    },
    close () {
      this.photoswipe.close()
    }
  }
}
</script>
