287 lines
10 KiB
HTML
287 lines
10 KiB
HTML
<div class="timeline"
|
|
role="feed"
|
|
aria-label="{{label}}"
|
|
on:focusWithCapture="saveFocus(event)"
|
|
on:blurWithCapture="clearFocus(event)"
|
|
>
|
|
{{#if !$initialized}}
|
|
<LoadingPage />
|
|
{{/if}}
|
|
{{#if virtual}}
|
|
<VirtualList component="{{VirtualListComponent}}"
|
|
realm="{{$currentInstance + '/' + timeline}}"
|
|
containerQuery=".container"
|
|
:makeProps
|
|
items="{{$timelineItemIds}}"
|
|
shown="{{$initialized}}"
|
|
showFooter="{{$initialized && $runningUpdate}}"
|
|
footerComponent="{{LoadingFooter}}"
|
|
showHeader="{{$showHeader}}"
|
|
headerComponent="{{MoreHeaderVirtualWrapper}}"
|
|
:headerProps
|
|
on:scrollToBottom="onScrollToBottom()"
|
|
on:scrollToTop="onScrollToTop()"
|
|
on:scrollTopChanged="onScrollTopChanged(event)"
|
|
on:initializedVisibleItems="initialize()"
|
|
/>
|
|
{{else}}
|
|
{{#await importPseudoVirtualList}}
|
|
{{then PseudoVirtualList}}
|
|
<!-- if this is a status thread, it's easier to just render the
|
|
whole thing rather than use a virtual list -->
|
|
<:Component {PseudoVirtualList}
|
|
component="{{VirtualListComponent}}"
|
|
realm="{{$currentInstance + '/' + timeline}}"
|
|
containerQuery=".container"
|
|
:makeProps
|
|
items="{{$timelineItemIds}}"
|
|
shown="{{$initialized}}"
|
|
scrollToItem="{{scrollToItem}}"
|
|
on:initializedVisibleItems="initialize()"
|
|
/>
|
|
{{catch error}}
|
|
<div>Component failed to load. Try refreshing! {{error}}</div>
|
|
{{/await}}
|
|
{{/if}}
|
|
</div>
|
|
<style>
|
|
.timeline {
|
|
position: relative;
|
|
}
|
|
</style>
|
|
<script>
|
|
import { store } from '../../_store/store'
|
|
import StatusVirtualListItem from './StatusVirtualListItem.html'
|
|
import NotificationVirtualListItem from './NotificationVirtualListItem.html'
|
|
import Status from '../status/Status.html'
|
|
import LoadingFooter from './LoadingFooter.html'
|
|
import MoreHeaderVirtualWrapper from './MoreHeaderVirtualWrapper.html'
|
|
import VirtualList from '../virtualList/VirtualList.html'
|
|
import { timelines } from '../../_static/timelines'
|
|
import { database } from '../../_database/database'
|
|
import {
|
|
initializeTimeline,
|
|
fetchTimelineItemsOnScrollToBottom,
|
|
setupTimeline,
|
|
showMoreItemsForTimeline,
|
|
showMoreItemsForThread,
|
|
showMoreItemsForCurrentTimeline
|
|
} from '../../_actions/timeline'
|
|
import LoadingPage from '../LoadingPage.html'
|
|
import { focusWithCapture, blurWithCapture } from '../../_utils/events'
|
|
import { scheduleIdleTask } from '../../_utils/scheduleIdleTask'
|
|
import { mark, stop } from '../../_utils/marks'
|
|
import { importPseudoVirtualList } from '../../_utils/asyncModules'
|
|
import isEqual from 'lodash/isEqual'
|
|
|
|
export default {
|
|
oncreate() {
|
|
console.log('timeline oncreate()')
|
|
this.setupFocus()
|
|
setupTimeline()
|
|
this.setupStreaming()
|
|
},
|
|
ondestroy() {
|
|
console.log('ondestroy')
|
|
this.teardownFocus()
|
|
},
|
|
data: () => ({
|
|
LoadingFooter,
|
|
MoreHeaderVirtualWrapper,
|
|
Status,
|
|
scrollTop: 0
|
|
}),
|
|
computed: {
|
|
importPseudoVirtualList: (virtual) => {
|
|
return !virtual && importPseudoVirtualList()
|
|
},
|
|
VirtualListComponent: (timelineType) => {
|
|
return timelineType === 'notifications' ? NotificationVirtualListItem : StatusVirtualListItem
|
|
},
|
|
makeProps: ($currentInstance, timelineType, timelineValue, $lastFocusedElementSelector) => async (itemId) => {
|
|
let res = {
|
|
timelineType,
|
|
timelineValue
|
|
}
|
|
if (timelineType === 'notifications') {
|
|
res.notification = await database.getNotification($currentInstance, itemId)
|
|
} else {
|
|
res.status = await database.getStatus($currentInstance, itemId)
|
|
}
|
|
if ($lastFocusedElementSelector && $lastFocusedElementSelector.includes(itemId)) {
|
|
// this selector is guaranteed to contain the statusId. false positives
|
|
// (e.g. notification id "1" matches notification id "11") are okay
|
|
// because Status.html won't be able to find the selector which is fine.
|
|
res.focusSelector = $lastFocusedElementSelector
|
|
}
|
|
return res
|
|
},
|
|
label: (timeline, $currentInstance, timelineType, timelineValue) => {
|
|
if (timelines[timeline]) {
|
|
return `${timelines[timeline].label} timeline for ${$currentInstance}`
|
|
}
|
|
|
|
switch (timelineType) {
|
|
case 'tag':
|
|
return `#${timelineValue} timeline for ${$currentInstance}`
|
|
case 'status':
|
|
return 'Status context'
|
|
case 'account':
|
|
return `Account #${timelineValue} on ${$currentInstance}`
|
|
case 'list':
|
|
return `List #${timelineValue} on ${$currentInstance}`
|
|
}
|
|
},
|
|
timelineType: (timeline) => {
|
|
return timeline.split('/')[0]
|
|
},
|
|
timelineValue: (timeline) => {
|
|
return timeline.split('/').slice(-1)[0]
|
|
},
|
|
// for threads, it's simpler to just render all items as a pseudo-virtual list
|
|
// due to need to scroll to the right item and thus calculate all item heights up-front
|
|
virtual: (timelineType) => timelineType !=='status',
|
|
scrollToItem: (timelineType, timelineValue, $firstTimelineItemId) => {
|
|
// Scroll to the first item if this is a "status in own thread" timeline.
|
|
// Don't scroll to the first item because it obscures the "back" button.
|
|
return timelineType === 'status'
|
|
&& $firstTimelineItemId
|
|
&& timelineValue !== $firstTimelineItemId
|
|
&& timelineValue
|
|
},
|
|
itemIdsToAdd: ($itemIdsToAdd) => $itemIdsToAdd,
|
|
headerProps: (itemIdsToAdd) => {
|
|
return {
|
|
count: itemIdsToAdd ? itemIdsToAdd.length : 0,
|
|
onClick: showMoreItemsForCurrentTimeline
|
|
}
|
|
}
|
|
},
|
|
store: () => store,
|
|
components: {
|
|
VirtualList,
|
|
LoadingPage
|
|
},
|
|
events: {
|
|
focusWithCapture,
|
|
blurWithCapture
|
|
},
|
|
methods: {
|
|
initialize() {
|
|
if (this.get('initializeStarted')) {
|
|
return
|
|
}
|
|
this.set({initializeStarted: true})
|
|
console.log('timeline initialize()')
|
|
initializeTimeline()
|
|
},
|
|
onScrollTopChanged(scrollTop) {
|
|
this.set({scrollTop: scrollTop})
|
|
if (!this.get('observedOnScrollTopChanged')) {
|
|
// ignore the first scroll top change, e.g.
|
|
// because we forced a scroll top change
|
|
this.set({observedOnScrollTopChanged: true})
|
|
} else {
|
|
// after that, don't allow statuses/notifications to call focus()
|
|
// after we've already started scrolling. that causes scrolling to
|
|
// jump around
|
|
this.store.setForCurrentTimeline({shouldRestoreFocus: false})
|
|
}
|
|
},
|
|
onScrollToBottom() {
|
|
if (!this.store.get('initialized') ||
|
|
this.store.get('runningUpdate') ||
|
|
this.get('timelineType') === 'status') { // for status contexts, we've already fetched the whole thread
|
|
return
|
|
}
|
|
fetchTimelineItemsOnScrollToBottom(
|
|
this.store.get('currentInstance'),
|
|
this.get('timeline')
|
|
)
|
|
},
|
|
onScrollToTop() {
|
|
if (this.store.get('shouldShowHeader')) {
|
|
this.store.setForCurrentTimeline({
|
|
showHeader: true,
|
|
shouldShowHeader: false
|
|
})
|
|
}
|
|
},
|
|
setupStreaming() {
|
|
let instanceName = this.store.get('currentInstance')
|
|
let timelineName = this.get('timeline')
|
|
let handleItemIdsToAdd = () => {
|
|
let itemIdsToAdd = this.get('itemIdsToAdd')
|
|
if (!itemIdsToAdd || !itemIdsToAdd.length) {
|
|
return
|
|
}
|
|
mark('handleItemIdsToAdd')
|
|
let scrollTop = this.get('scrollTop')
|
|
let shouldShowHeader = this.store.get('shouldShowHeader')
|
|
let showHeader = this.store.get('showHeader')
|
|
if (timelineName.startsWith('status/')) {
|
|
// this is a thread, just insert the statuses already
|
|
showMoreItemsForThread(instanceName, timelineName)
|
|
} else if (scrollTop === 0 && !shouldShowHeader && !showHeader) {
|
|
// if the user is scrolled to the top and we're not showing the header, then
|
|
// just insert the statuses. this is "chat room mode"
|
|
showMoreItemsForTimeline(instanceName, timelineName)
|
|
} else {
|
|
// user hasn't scrolled to the top, show a header instead
|
|
this.store.setForTimeline(instanceName, timelineName, {shouldShowHeader: true})
|
|
}
|
|
stop('handleItemIdsToAdd')
|
|
}
|
|
this.observe('itemIdsToAdd', (newItemIdsToAdd, oldItemIdsToAdd) => {
|
|
if (!newItemIdsToAdd ||
|
|
!newItemIdsToAdd.length ||
|
|
isEqual(newItemIdsToAdd, oldItemIdsToAdd)) {
|
|
return
|
|
}
|
|
scheduleIdleTask(handleItemIdsToAdd)
|
|
})
|
|
},
|
|
setupFocus() {
|
|
this.onPushState = this.onPushState.bind(this)
|
|
this.store.setForCurrentTimeline({
|
|
ignoreBlurEvents: false,
|
|
shouldRestoreFocus: true
|
|
})
|
|
window.addEventListener('pushState', this.onPushState)
|
|
},
|
|
teardownFocus() {
|
|
window.removeEventListener('pushState', this.onPushState)
|
|
},
|
|
onPushState() {
|
|
this.store.setForCurrentTimeline({ ignoreBlurEvents: true })
|
|
},
|
|
saveFocus(e) {
|
|
let instanceName = this.store.get('currentInstance')
|
|
let timelineName = this.get('timeline')
|
|
let lastFocusedElementSelector
|
|
let activeElement = e.target
|
|
if (activeElement) {
|
|
let focusKey = activeElement.getAttribute('focus-key')
|
|
if (focusKey) {
|
|
lastFocusedElementSelector = `[focus-key=${JSON.stringify(focusKey)}]`
|
|
}
|
|
}
|
|
console.log('saving focus to ', lastFocusedElementSelector)
|
|
this.store.setForTimeline(instanceName, timelineName, {
|
|
lastFocusedElementSelector
|
|
})
|
|
},
|
|
clearFocus() {
|
|
if (this.store.get('ignoreBlurEvents')) {
|
|
return
|
|
}
|
|
console.log('clearing focus')
|
|
let instanceName = this.store.get('currentInstance')
|
|
let timelineName = this.get('timeline')
|
|
this.store.setForTimeline(instanceName, timelineName, {
|
|
lastFocusedElementSelector: null
|
|
})
|
|
}
|
|
}
|
|
}
|
|
</script> |