Whalebird-desktop-client-ma.../src/renderer/components/TimelineSpace/Contents/Lists/Show.vue

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<template>
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<div name="list" class="list-timeline" v-shortkey="shortcutEnabled ? { next: ['j'] } : {}" @shortkey="handleKey">
<div v-shortkey="{ linux: ['ctrl', 'r'], mac: ['meta', 'r'] }" @shortkey="reload()"></div>
<DynamicScroller :items="timeline" :min-item-size="86" id="scroller" class="scroller" ref="scroller">
<template v-slot="{ item, index, active }">
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<DynamicScrollerItem :item="item" :active="active" :size-dependencies="[item.uri]" :data-index="index" :watchData="true">
<toot
:message="item"
:focused="item.uri + item.id === focusedId"
:overlaid="modalOpened"
:filters="[]"
v-on:update="updateToot"
v-on:delete="deleteToot"
@focusNext="focusNext"
@focusPrev="focusPrev"
@focusRight="focusSidebar"
@selectToot="focusToot(item)"
@sizeChanged="sizeChanged"
>
</toot>
</DynamicScrollerItem>
</template>
</DynamicScroller>
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<div :class="openSideBar ? 'upper-with-side-bar' : 'upper'" v-show="!heading">
<el-button type="primary" @click="upper" circle>
<font-awesome-icon icon="arrow-up" />
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</el-button>
</div>
</div>
</template>
<script>
import { mapState, mapGetters } from 'vuex'
import moment from 'moment'
import Toot from '~/src/renderer/components/organisms/Toot'
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import reloadable from '~/src/renderer/components/mixins/reloadable'
import { Event } from '~/src/renderer/components/event'
import { ScrollPosition } from '~/src/renderer/components/utils/scroll'
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export default {
data() {
return {
focusedId: null,
scrollPosition: null,
observer: null,
scrollTime: null,
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resizeTime: null
}
},
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name: 'list',
props: ['list_id'],
components: { Toot },
mixins: [reloadable],
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computed: {
...mapState({
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openSideBar: state => state.TimelineSpace.Contents.SideBar.openSideBar,
backgroundColor: state => state.App.theme.background_color,
startReload: state => state.TimelineSpace.HeaderMenu.reload,
timeline: state => state.TimelineSpace.Contents.Lists.Show.timeline,
lazyLoading: state => state.TimelineSpace.Contents.Lists.Show.lazyLoading,
heading: state => state.TimelineSpace.Contents.Lists.Show.heading,
scrolling: state => state.TimelineSpace.Contents.Lists.Show.scrolling
}),
...mapGetters('TimelineSpace/Modals', ['modalOpened']),
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shortcutEnabled: function () {
if (this.modalOpened) {
return false
}
if (!this.focusedId) {
return true
}
// Sometimes toots are deleted, so perhaps focused toot don't exist.
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const currentIndex = this.timeline.findIndex(toot => this.focusedId === toot.uri + toot.id)
return currentIndex === -1
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}
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},
created() {
this.$store.commit('TimelineSpace/Contents/changeLoading', true)
this.load().finally(() => {
this.$store.commit('TimelineSpace/Contents/changeLoading', false)
})
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},
mounted() {
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document.getElementById('scroller').addEventListener('scroll', this.onScroll)
Event.$on('focus-timeline', () => {
// If focusedId does not change, we have to refresh focusedId because Toot component watch change events.
const previousFocusedId = this.focusedId
this.focusedId = 0
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this.$nextTick(function () {
this.focusedId = previousFocusedId
})
})
const el = document.getElementById('scroller')
this.scrollPosition = new ScrollPosition(el)
this.scrollPosition.prepare()
this.observer = new ResizeObserver(() => {
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if (this.scrollPosition && !this.heading && !this.lazyLoading && !this.scrolling) {
this.resizeTime = moment()
this.scrollPosition.restore()
}
})
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const scrollWrapper = el.getElementsByClassName('vue-recycle-scroller__item-wrapper')[0]
this.observer.observe(scrollWrapper)
},
beforeUpdate() {
if (this.scrollPosition) {
this.scrollPosition.prepare()
}
},
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watch: {
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list_id: function () {
this.$store.commit('TimelineSpace/Contents/changeLoading', true)
this.load().finally(() => {
this.$store.commit('TimelineSpace/Contents/changeLoading', false)
})
},
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startReload: function (newState, oldState) {
if (!oldState && newState) {
this.reload().finally(() => {
this.$store.commit('TimelineSpace/HeaderMenu/changeReload', false)
})
}
},
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focusedId: function (newState, _oldState) {
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if (newState && this.heading) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeHeading', false)
} else if (newState === null && !this.heading) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeHeading', true)
}
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}
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},
beforeDestroy() {
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this.$store.dispatch('TimelineSpace/Contents/Lists/Show/stopStreaming')
this.observer.disconnect()
},
destroyed() {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeHeading', true)
this.$store.commit('TimelineSpace/Contents/Lists/Show/archiveTimeline')
this.$store.commit('TimelineSpace/Contents/Lists/Show/clearTimeline')
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if (document.getElementById('scroller') !== undefined && document.getElementById('scroller') !== null) {
document.getElementById('scroller').removeEventListener('scroll', this.onScroll)
document.getElementById('scroller').scrollTop = 0
}
},
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methods: {
async load() {
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await this.$store.dispatch('TimelineSpace/Contents/Lists/Show/stopStreaming')
try {
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await this.$store.dispatch('TimelineSpace/Contents/Lists/Show/fetchTimeline', this.list_id)
} catch (err) {
this.$message({
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message: this.$t('message.timeline_fetch_error'),
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type: 'error'
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})
}
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this.$store.dispatch('TimelineSpace/Contents/Lists/Show/startStreaming', this.list_id).catch(() => {
this.$message({
message: this.$t('message.start_streaming_error'),
type: 'error'
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})
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})
return 'started'
},
updateToot(message) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/updateToot', message)
},
deleteToot(message) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/deleteToot', message.id)
},
onScroll(event) {
if (moment().diff(this.resizeTime) < 500) {
return
}
this.scrollTime = moment()
if (!this.scrolling) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeScrolling', true)
}
if (
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event.target.clientHeight + event.target.scrollTop >= document.getElementById('scroller').scrollHeight - 10 &&
!this.lazyloading
) {
this.$store
.dispatch('TimelineSpace/Contents/Lists/Show/lazyFetchTimeline', {
list_id: this.list_id,
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status: this.timeline[this.timeline.length - 1]
})
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.then(statuses => {
if (statuses === null) {
return
}
if (statuses.length > 0) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeScrolling', true)
setTimeout(() => {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeScrolling', false)
}, 500)
}
})
.catch(() => {
this.$message({
message: this.$t('message.timeline_fetch_error'),
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type: 'error'
})
})
}
if (event.target.scrollTop > 10 && this.heading) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeHeading', false)
} else if (event.target.scrollTop <= 10 && !this.heading) {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeHeading', true)
}
setTimeout(() => {
const now = moment()
if (now.diff(this.scrollTime) >= 150) {
this.scrollTime = null
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeScrolling', false)
}
}, 150)
},
async reload() {
this.$store.commit('TimelineSpace/changeLoading', true)
try {
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await this.reloadable()
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await this.$store.dispatch('TimelineSpace/Contents/Lists/Show/stopStreaming')
await this.$store.dispatch('TimelineSpace/Contents/Lists/Show/fetchTimeline', this.list_id).catch(() => {
this.$message({
message: this.$t('message.timeline_fetch_error'),
type: 'error'
})
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})
this.$store.dispatch('TimelineSpace/Contents/Lists/Show/startStreaming', this.list_id).catch(() => {
this.$message({
message: this.$t('message.start_streaming_error'),
type: 'error'
})
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})
} finally {
this.$store.commit('TimelineSpace/changeLoading', false)
}
},
upper() {
this.$refs.scroller.scrollToItem(0)
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this.focusedId = null
},
focusNext() {
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const currentIndex = this.timeline.findIndex(toot => this.focusedId === toot.uri + toot.id)
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if (currentIndex === -1) {
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this.focusedId = this.timeline[0].uri + this.timeline[0].id
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} else if (currentIndex < this.timeline.length) {
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this.focusedId = this.timeline[currentIndex + 1].uri + this.timeline[currentIndex + 1].id
}
},
focusPrev() {
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const currentIndex = this.timeline.findIndex(toot => this.focusedId === toot.uri + toot.id)
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if (currentIndex === 0) {
this.focusedId = null
} else if (currentIndex > 0) {
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this.focusedId = this.timeline[currentIndex - 1].uri + this.timeline[currentIndex - 1].id
}
},
focusToot(message) {
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this.focusedId = message.uri + message.id
},
focusSidebar() {
Event.$emit('focus-sidebar')
},
handleKey(event) {
switch (event.srcKey) {
case 'next':
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this.focusedId = this.timeline[0].uri + this.timeline[0].id
break
}
},
sizeChanged() {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeScrolling', true)
setTimeout(() => {
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this.$store.commit('TimelineSpace/Contents/Lists/Show/changeScrolling', false)
}, 500)
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}
}
}
</script>
<style lang="scss" scoped>
.list-timeline {
height: 100%;
overflow: auto;
scroll-behavior: auto;
.scroller {
height: 100%;
}
.upper {
position: fixed;
bottom: 20px;
right: 20px;
}
.upper-with-side-bar {
position: fixed;
bottom: 20px;
right: calc(20px + var(--current-sidebar-width));
transition: all 0.5s;
}
}
</style>
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<style lang="scss" src="@/assets/timeline-transition.scss"></style>