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| import { inBrowser } from './util'
|
| export default (lazy) => {
| return {
| props: {
| tag: {
| type: String,
| default: 'div'
| }
| },
| render (h) {
| if (this.show === false) {
| return h(this.tag)
| }
| return h(this.tag, null, this.$slots.default)
| },
| data () {
| return {
| el: null,
| state: {
| loaded: false
| },
| rect: {},
| show: false
| }
| },
| mounted () {
| this.el = this.$el
| lazy.addLazyBox(this)
| lazy.lazyLoadHandler()
| },
| beforeDestroy () {
| lazy.removeComponent(this)
| },
| methods: {
| getRect () {
| this.rect = this.$el.getBoundingClientRect()
| },
| checkInView () {
| this.getRect()
| return inBrowser &&
| (this.rect.top < window.innerHeight * lazy.options.preLoad && this.rect.bottom > 0) &&
| (this.rect.left < window.innerWidth * lazy.options.preLoad && this.rect.right > 0)
| },
| load () {
| this.show = true
| this.state.loaded = true
| this.$emit('show', this)
| }
| }
| }
| }
|
|
