kopia lustrzana https://github.com/nolanlawson/pinafore
246 wiersze
9.8 KiB
HTML
246 wiersze
9.8 KiB
HTML
<DynamicHeading className="sr-only" level={headingLevel}>{label}</DynamicHeading>
|
|
<FocusRestoration realm={focusRealm}>
|
|
<div class="timeline" role="feed">
|
|
{#if components}
|
|
<svelte:component this={components.listComponent}
|
|
component={components.listItemComponent}
|
|
realm="{$currentInstance + '/' + timeline}"
|
|
{makeProps}
|
|
items={itemIds}
|
|
showFooter={true}
|
|
footerComponent={LoadingFooter}
|
|
showHeader={$showHeader}
|
|
headerComponent={MoreHeaderVirtualWrapper}
|
|
{headerProps}
|
|
{scrollToItem}
|
|
on:scrollToBottom="onScrollToBottom()"
|
|
on:scrollToTop="onScrollToTop()"
|
|
on:scrollTopChanged="onScrollTopChanged(event)"
|
|
on:initialized="initialize()"
|
|
on:noNeedToScroll="onNoNeedToScroll()"
|
|
/>
|
|
{/if}
|
|
</div>
|
|
</FocusRestoration>
|
|
<Shortcut scope="global" key="." on:pressed="showMoreAndScrollToTop()" />
|
|
<ScrollListShortcuts />
|
|
<script>
|
|
import { store } from '../../_store/store.js'
|
|
import DynamicHeading from '../DynamicHeading.html'
|
|
import Status from '../status/Status.html'
|
|
import LoadingFooter from './LoadingFooter.html'
|
|
import MoreHeaderVirtualWrapper from './MoreHeaderVirtualWrapper.html'
|
|
import ScrollListShortcuts from '../shortcut/ScrollListShortcuts.html'
|
|
import Shortcut from '../shortcut/Shortcut.html'
|
|
import { importVirtualList } from '../../_utils/asyncModules/importVirtualList.js'
|
|
import { importList } from '../../_utils/asyncModules/importList.js'
|
|
import { importStatusVirtualListItem } from '../../_utils/asyncModules/importStatusVirtualListItem.js'
|
|
import { importNotificationVirtualListItem } from '../../_utils/asyncModules/importNotificationVirtualListItem.js'
|
|
import { timelines } from '../../_static/timelines.js'
|
|
import {
|
|
fetchMoreItemsAtBottomOfTimeline,
|
|
setupTimeline,
|
|
showMoreItemsForTimeline,
|
|
showMoreItemsForThread,
|
|
showMoreItemsForCurrentTimeline
|
|
} from '../../_actions/timeline.js'
|
|
import { scheduleIdleTask } from '../../_utils/scheduleIdleTask.js'
|
|
import { mark, stop } from '../../_utils/marks.js'
|
|
import { isEqual } from '../../_thirdparty/lodash/objects.js'
|
|
import { doubleRAF } from '../../_utils/doubleRAF.js'
|
|
import { observe } from 'svelte-extras'
|
|
import { createMakeProps } from '../../_actions/createMakeProps.js'
|
|
import { showMoreAndScrollToTop } from '../../_actions/showMoreAndScrollToTop.js'
|
|
import FocusRestoration from '../FocusRestoration.html'
|
|
import { formatIntl } from '../../_utils/formatIntl.js'
|
|
|
|
export default {
|
|
oncreate () {
|
|
console.log('timeline oncreate()')
|
|
setupTimeline()
|
|
this.setupStreaming()
|
|
this.setupAsyncComponents()
|
|
},
|
|
data: () => ({
|
|
LoadingFooter,
|
|
MoreHeaderVirtualWrapper,
|
|
Status,
|
|
scrollTop: 0,
|
|
components: undefined
|
|
}),
|
|
computed: {
|
|
// 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.
|
|
// Here we lazy-load both the virtual list component itself as well as the component
|
|
// it renders.
|
|
componentsPromise: ({ timelineType }) => {
|
|
return Promise.all([
|
|
timelineType === 'status'
|
|
? importList()
|
|
: importVirtualList(),
|
|
timelineType === 'notifications'
|
|
? importNotificationVirtualListItem()
|
|
: importStatusVirtualListItem()
|
|
]).then(results => ({
|
|
listComponent: results[0],
|
|
listItemComponent: results[1]
|
|
}))
|
|
},
|
|
makeProps: ({ $currentInstance, timelineType, timelineValue }) => (
|
|
createMakeProps($currentInstance, timelineType, timelineValue)
|
|
),
|
|
label: ({ timeline, $currentInstance, timelineType, timelineValue }) => {
|
|
if (timelines[timeline]) {
|
|
return formatIntl('intl.statusesTimelineOnInstance', {
|
|
timeline: timelines[timeline].label,
|
|
instance: $currentInstance
|
|
})
|
|
}
|
|
|
|
switch (timelineType) {
|
|
case 'tag':
|
|
return formatIntl('intl.statusesHashtag', { hashtag: timelineValue })
|
|
case 'status':
|
|
return 'intl.statusesThread'
|
|
case 'account':
|
|
return 'intl.statusesAccountTimeline'
|
|
case 'list':
|
|
return 'intl.statusesList'
|
|
case 'notifications':
|
|
return formatIntl('intl.notificationsOnInstance', { instance: $currentInstance })
|
|
}
|
|
},
|
|
timelineType: ({ $currentTimelineType }) => $currentTimelineType,
|
|
timelineValue: ({ $currentTimelineValue }) => $currentTimelineValue,
|
|
// 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.
|
|
scrollToItem: ({ timelineType, timelineValue, $firstTimelineItemId }) => (
|
|
timelineType === 'status' &&
|
|
$firstTimelineItemId &&
|
|
timelineValue !== $firstTimelineItemId &&
|
|
timelineValue
|
|
),
|
|
itemIds: ({ $filteredTimelineItemSummaries }) => (
|
|
$filteredTimelineItemSummaries && $filteredTimelineItemSummaries.map(_ => _.id)
|
|
),
|
|
itemIdsToAdd: ({ $filteredTimelineItemSummariesToAdd }) => (
|
|
$filteredTimelineItemSummariesToAdd && $filteredTimelineItemSummariesToAdd.map(_ => _.id)
|
|
),
|
|
headerProps: ({ itemIdsToAdd }) => {
|
|
return {
|
|
count: itemIdsToAdd ? itemIdsToAdd.length : 0,
|
|
onClick: showMoreItemsForCurrentTimeline
|
|
}
|
|
},
|
|
focusRealm: ({ $currentInstance, timeline }) => `${$currentInstance}-${timeline}`,
|
|
headingLevel: ({ timeline, timelineType }) => timeline === 'home' || timelineType === 'status' ? 2 : 1
|
|
},
|
|
store: () => store,
|
|
methods: {
|
|
observe,
|
|
initialize () {
|
|
const { initializeStarted } = this.get()
|
|
if (initializeStarted) {
|
|
return
|
|
}
|
|
this.set({ initializeStarted: true })
|
|
mark('initializeTimeline')
|
|
doubleRAF(() => {
|
|
console.log('timeline initialized')
|
|
this.store.set({ timelineInitialized: true })
|
|
stop('initializeTimeline')
|
|
})
|
|
},
|
|
onScrollTopChanged (scrollTop) {
|
|
this.set({ scrollTop })
|
|
},
|
|
onScrollToBottom () {
|
|
const { timelineType } = this.get()
|
|
const { timelineInitialized, runningUpdate, disableInfiniteScroll } = this.store.get()
|
|
if (!timelineInitialized ||
|
|
runningUpdate ||
|
|
disableInfiniteScroll ||
|
|
timelineType === 'status') { // for status contexts, we've already fetched the whole thread
|
|
return
|
|
}
|
|
const { currentInstance } = this.store.get()
|
|
const { timeline } = this.get()
|
|
/* no await */ fetchMoreItemsAtBottomOfTimeline(currentInstance, timeline)
|
|
},
|
|
onScrollToTop () {
|
|
const { shouldShowHeader } = this.store.get()
|
|
if (shouldShowHeader) {
|
|
this.store.setForCurrentTimeline({
|
|
showHeader: true,
|
|
shouldShowHeader: false
|
|
})
|
|
}
|
|
},
|
|
setupStreaming () {
|
|
const { currentInstance, disableInfiniteScroll } = this.store.get()
|
|
const { timeline, timelineType } = this.get()
|
|
const handleItemIdsToAdd = () => {
|
|
const { itemIdsToAdd } = this.get()
|
|
if (!itemIdsToAdd || !itemIdsToAdd.length) {
|
|
return
|
|
}
|
|
mark('handleItemIdsToAdd')
|
|
const { scrollTop } = this.get()
|
|
const {
|
|
shouldShowHeader,
|
|
showHeader
|
|
} = this.store.get()
|
|
if (timelineType === 'status') {
|
|
// this is a thread, just insert the statuses already
|
|
showMoreItemsForThread(currentInstance, timeline)
|
|
} else if (!disableInfiniteScroll && 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(currentInstance, timeline)
|
|
} else {
|
|
// user hasn't scrolled to the top, show a header instead
|
|
this.store.setForTimeline(currentInstance, timeline, { shouldShowHeader: true })
|
|
// unless the user has disabled infinite scroll entirely
|
|
if (disableInfiniteScroll) {
|
|
this.store.setForTimeline(currentInstance, timeline, { showHeader: true })
|
|
}
|
|
}
|
|
stop('handleItemIdsToAdd')
|
|
}
|
|
this.observe('itemIdsToAdd', (newItemIdsToAdd, oldItemIdsToAdd) => {
|
|
if (!newItemIdsToAdd ||
|
|
!newItemIdsToAdd.length ||
|
|
isEqual(newItemIdsToAdd, oldItemIdsToAdd)) {
|
|
return
|
|
}
|
|
scheduleIdleTask(handleItemIdsToAdd)
|
|
})
|
|
},
|
|
setupAsyncComponents () {
|
|
this.observe('componentsPromise', async componentsPromise => {
|
|
if (componentsPromise) {
|
|
console.log('loading timeline components')
|
|
const components = await componentsPromise
|
|
console.log('loaded timeline components')
|
|
this.set({ components })
|
|
}
|
|
})
|
|
},
|
|
onNoNeedToScroll () {
|
|
// If the timeline doesn't need to scroll, then we can safely "preinitialize,"
|
|
// i.e. render anything above the fold of the timeline. This avoids the affect
|
|
// where the scrollable content appears to jump around if we need to scroll it.
|
|
console.log('timeline preinitialized')
|
|
this.store.set({ timelinePreinitialized: true })
|
|
},
|
|
showMoreAndScrollToTop
|
|
},
|
|
components: {
|
|
ScrollListShortcuts,
|
|
Shortcut,
|
|
FocusRestoration,
|
|
DynamicHeading
|
|
}
|
|
}
|
|
</script>
|