forked from Mirrors/elk
120 lines
3.3 KiB
Vue
120 lines
3.3 KiB
Vue
<script setup lang="ts" generic="T, O, U = T">
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// @ts-expect-error missing types
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import { DynamicScroller } from 'vue-virtual-scroller'
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import 'vue-virtual-scroller/dist/vue-virtual-scroller.css'
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import type { mastodon } from 'masto'
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import type { UnwrapRef } from 'vue'
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const {
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paginator,
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stream,
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keyProp = 'id',
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virtualScroller = false,
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preprocess,
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endMessage = true,
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} = defineProps<{
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paginator: mastodon.Paginator<T[], O>
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keyProp?: keyof T
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virtualScroller?: boolean
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stream?: mastodon.streaming.Subscription
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preprocess?: (items: (U | T)[]) => U[]
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endMessage?: boolean | string
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}>()
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defineSlots<{
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default: (props: {
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items: U[]
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item: U
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index: number
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active?: boolean
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older: U
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newer: U // newer is undefined when index === 0
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}) => void
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items: (props: {
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items: UnwrapRef<U[]>
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}) => void
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updater: (props: {
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number: number
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update: () => void
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}) => void
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loading: (props: object) => void
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done: (props: { items: U[] }) => void
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}>()
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const { t } = useI18n()
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const nuxtApp = useNuxtApp()
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const { items, prevItems, update, state, endAnchor, error } = usePaginator(paginator, toRef(() => stream), preprocess)
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nuxtApp.hook('elk-logo:click', () => {
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update()
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nuxtApp.$scrollToTop()
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})
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function createEntry(item: any) {
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items.value = [...items.value, preprocess?.([item]) ?? item]
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}
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function updateEntry(item: any) {
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const id = item[keyProp]
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const index = items.value.findIndex(i => (i as any)[keyProp] === id)
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if (index > -1)
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items.value = [...items.value.slice(0, index), preprocess?.([item]) ?? item, ...items.value.slice(index + 1)]
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}
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function removeEntry(entryId: any) {
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items.value = items.value.filter(i => (i as any)[keyProp] !== entryId)
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}
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defineExpose({ createEntry, removeEntry, updateEntry })
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</script>
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<template>
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<div>
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<slot v-if="prevItems.length" name="updater" v-bind="{ number: prevItems.length, update }" />
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<slot name="items" :items="items">
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<template v-if="virtualScroller">
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<DynamicScroller
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v-slot="{ item, active, index }"
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:items="items"
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:min-item-size="200"
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:key-field="keyProp"
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page-mode
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>
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<slot
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v-bind="{ key: item[keyProp] }"
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:item="item"
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:active="active"
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:older="items[index + 1] as U"
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:newer="items[index - 1] as U"
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:index="index"
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:items="items as U[]"
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/>
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</DynamicScroller>
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</template>
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<template v-else>
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<slot
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v-for="(item, index) of items"
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v-bind="{ key: (item as U)[keyProp as keyof U] }"
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:item="item as U"
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:older="items[index + 1] as U"
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:newer="items[index - 1] as U"
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:index="index"
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:items="items as U[]"
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/>
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</template>
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</slot>
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<div ref="endAnchor" />
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<slot v-if="state === 'loading'" name="loading">
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<TimelineSkeleton />
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</slot>
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<slot v-else-if="state === 'done' && endMessage !== false" name="done" :items="items as U[]">
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<div p5 text-secondary italic text-center>
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{{ t(typeof endMessage === 'string' && items.length <= 0 ? endMessage : 'common.end_of_list') }}
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</div>
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</slot>
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<div v-else-if="state === 'error'" p5 text-secondary>
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{{ t('common.error') }}: {{ error }}
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</div>
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</div>
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</template>
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