akkoma-fe/src/components/timeline/timeline.js

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import Status from '../status/status.vue'
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import timelineFetcher from '../../services/timeline_fetcher/timeline_fetcher.service.js'
import StatusOrConversation from '../status_or_conversation/status_or_conversation.vue'
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import UserCard from '../user_card/user_card.vue'
import { throttle } from 'lodash'
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const Timeline = {
props: [
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'timeline',
'timelineName',
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'title',
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'userId',
'tag',
'embedded'
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],
data () {
return {
paused: false,
unfocused: false,
bottomedOut: false
}
},
computed: {
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timelineError () { return this.$store.state.statuses.error },
newStatusCount () {
return this.timeline.newStatusCount
},
newStatusCountStr () {
if (this.timeline.flushMarker !== 0) {
return ''
} else {
return ` (${this.newStatusCount})`
}
},
classes () {
return {
root: ['timeline'].concat(!this.embedded ? ['panel', 'panel-default'] : []),
header: ['timeline-heading'].concat(!this.embedded ? ['panel-heading'] : []),
body: ['timeline-body'].concat(!this.embedded ? ['panel-body'] : []),
footer: ['timeline-footer'].concat(!this.embedded ? ['panel-footer'] : [])
}
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}
},
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components: {
Status,
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StatusOrConversation,
UserCard
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},
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created () {
const store = this.$store
const credentials = store.state.users.currentUser.credentials
const showImmediately = this.timeline.visibleStatuses.length === 0
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window.addEventListener('scroll', this.scrollLoad)
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timelineFetcher.fetchAndUpdate({
store,
credentials,
timeline: this.timelineName,
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showImmediately,
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userId: this.userId,
tag: this.tag
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})
},
mounted () {
if (typeof document.hidden !== 'undefined') {
document.addEventListener('visibilitychange', this.handleVisibilityChange, false)
this.unfocused = document.hidden
}
},
destroyed () {
window.removeEventListener('scroll', this.scrollLoad)
if (typeof document.hidden !== 'undefined') document.removeEventListener('visibilitychange', this.handleVisibilityChange, false)
this.$store.commit('setLoading', { timeline: this.timelineName, value: false })
},
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methods: {
showNewStatuses () {
if (this.timeline.flushMarker !== 0) {
this.$store.commit('clearTimeline', { timeline: this.timelineName })
this.$store.commit('queueFlush', { timeline: this.timelineName, id: 0 })
this.fetchOlderStatuses()
} else {
this.$store.commit('showNewStatuses', { timeline: this.timelineName })
this.paused = false
}
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},
fetchOlderStatuses: throttle(function () {
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const store = this.$store
const credentials = store.state.users.currentUser.credentials
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store.commit('setLoading', { timeline: this.timelineName, value: true })
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timelineFetcher.fetchAndUpdate({
store,
credentials,
timeline: this.timelineName,
older: true,
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showImmediately: true,
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userId: this.userId,
tag: this.tag
}).then(statuses => {
store.commit('setLoading', { timeline: this.timelineName, value: false })
if (statuses.length === 0) {
this.bottomedOut = true
}
})
}, 1000, this),
scrollLoad (e) {
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const bodyBRect = document.body.getBoundingClientRect()
const height = Math.max(bodyBRect.height, -(bodyBRect.y))
if (this.timeline.loading === false &&
this.$store.state.config.autoLoad &&
this.$el.offsetHeight > 0 &&
(window.innerHeight + window.pageYOffset) >= (height - 750)) {
this.fetchOlderStatuses()
}
},
handleVisibilityChange () {
this.unfocused = document.hidden
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}
},
watch: {
newStatusCount (count) {
if (!this.$store.state.config.streaming) {
return
}
if (count > 0) {
// only 'stream' them when you're scrolled to the top
if (window.pageYOffset < 15 &&
!this.paused &&
!(this.unfocused && this.$store.state.config.pauseOnUnfocused)
) {
this.showNewStatuses()
} else {
this.paused = true
}
}
}
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}
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}
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export default Timeline