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import UserCard from '../user_card/user_card.vue'
const FriendsList = {
data () {
return {
loading: false,
bottomedOut: false,
error: false
}
},
props: ['userId'],
created () {
window.addEventListener('scroll', this.scrollLoad)
if (this.user.followers.length === 0) {
this.fetchFriends()
}
},
destroyed () {
window.removeEventListener('scroll', this.scrollLoad)
this.$store.dispatch('clearFriendsAndFollowers', this.userId)
},
computed: {
user () {
return this.$store.getters.userById(this.userId)
},
friends () {
return this.user.friends
}
},
methods: {
fetchFriends () {
if (!this.loading) {
this.loading = true
this.$store.dispatch('addFriends', this.userId).then(friends => {
this.error = false
this.loading = false
this.bottomedOut = friends.length === 0
}).catch(() => {
this.error = true
this.loading = false
})
}
},
scrollLoad (e) {
const bodyBRect = document.body.getBoundingClientRect()
const height = Math.max(bodyBRect.height, -(bodyBRect.y))
if (this.loading === false &&
this.bottomedOut === false &&
this.$el.offsetHeight > 0 &&
(window.innerHeight + window.pageYOffset) >= (height - 750)
) {
this.fetchFriends()
}
}
},
components: {
UserCard
}
}
export default FriendsList
|