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frontend: MkPagination

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fly_mc 2024-12-12 11:49:56 +08:00
parent 0d022d8eb2
commit 147f2bfec1
1 changed files with 27 additions and 16 deletions
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43
packages/frontend/src/components/MkPagination.vue
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@ -43,7 +43,7 @@ SPDX-License-Identifier: AGPL-3.0-only
</template>
<script lang="ts">
import { computed, ComputedRef, isRef, nextTick, onActivated, onBeforeMount, onBeforeUnmount, onDeactivated, ref, shallowRef, watch } from 'vue';
import { computed, ComputedRef, isRef, nextTick, onActivated, onBeforeMount, onBeforeUnmount, onDeactivated, ref, shallowRef, watch, type Ref } from 'vue';
import * as Misskey from 'misskey-js';
import { useDocumentVisibility } from '@@/js/use-document-visibility.js';
import { onScrollTop, isTopVisible, getBodyScrollHeight, getScrollContainer, onScrollBottom, scrollToBottom, scroll, isBottomVisible } from '@@/js/scroll.js';
@ -73,7 +73,7 @@ export type Paging<E extends keyof Misskey.Endpoints = keyof Misskey.Endpoints>
*/
reversed?: boolean;
offsetMode?: boolean;
offsetMode?: boolean | ComputedRef<boolean>;
pageEl?: HTMLElement;
};
@ -104,6 +104,7 @@ const props = withDefaults(defineProps<{
const emit = defineEmits<{
(ev: 'queue', count: number): void;
(ev: 'status', error: boolean): void;
(ev: 'init'): void;
}>();
const rootEl = shallowRef<HTMLElement>();
@ -199,11 +200,17 @@ watch(error, (n, o) => {
emit('status', n);
});
function getActualValue<T>(input: T|Ref<T>|undefined, defaultValue: T) : T {
if (!input) return defaultValue;
if (isRef(input)) return input.value;
return input;
}
async function init(): Promise<void> {
items.value = new Map();
queue.value = new Map();
fetching.value = true;
const params = props.pagination.params ? isRef(props.pagination.params) ? props.pagination.params.value : props.pagination.params : {};
const params = getActualValue<Paging['params']>(props.pagination.params, {});
await misskeyApi<MisskeyEntity[]>(props.pagination.endpoint, {
...params,
limit: props.pagination.limit ?? 10,
@ -225,6 +232,8 @@ async function init(): Promise<void> {
error.value = false;
fetching.value = false;
emit('init');
}, err => {
error.value = true;
fetching.value = false;
@ -238,11 +247,12 @@ const reload = (): Promise<void> => {
const fetchMore = async (): Promise<void> => {
if (!more.value || fetching.value || moreFetching.value || items.value.size === 0) return;
moreFetching.value = true;
const params = props.pagination.params ? isRef(props.pagination.params) ? props.pagination.params.value : props.pagination.params : {};
const params = getActualValue<Paging['params']>(props.pagination.params, {});
const offsetMode = getActualValue(props.pagination.offsetMode, false);
await misskeyApi<MisskeyEntity[]>(props.pagination.endpoint, {
...params,
limit: SECOND_FETCH_LIMIT,
...(props.pagination.offsetMode ? {
...(offsetMode ? {
offset: items.value.size,
} : {
untilId: Array.from(items.value.keys()).at(-1),
@ -301,11 +311,12 @@ const fetchMore = async (): Promise<void> => {
const fetchMoreAhead = async (): Promise<void> => {
if (!more.value || fetching.value || moreFetching.value || items.value.size === 0) return;
moreFetching.value = true;
const params = props.pagination.params ? isRef(props.pagination.params) ? props.pagination.params.value : props.pagination.params : {};
const params = getActualValue<Paging['params']>(props.pagination.params, {});
const offsetMode = getActualValue(props.pagination.offsetMode, false);
await misskeyApi<MisskeyEntity[]>(props.pagination.endpoint, {
...params,
limit: SECOND_FETCH_LIMIT,
...(props.pagination.offsetMode ? {
...(offsetMode ? {
offset: items.value.size,
} : {
sinceId: Array.from(items.value.keys()).at(-1),
@ -392,10 +403,10 @@ const prepend = (item: MisskeyEntity): void => {
* @param newItems 新しいアイテムの配列
*/
function unshiftItems(newItems: MisskeyEntity[]) {
const length = newItems.length + items.value.size;
items.value = new Map([...arrayToEntries(newItems), ...items.value].slice(0, props.displayLimit));
if (length >= props.displayLimit) more.value = true;
const prevLength = items.value.size;
items.value = new Map([...arrayToEntries(newItems), ...items.value].slice(0, newItems.length + props.displayLimit));
// if we truncated, mark that there are more values to fetch
if (items.value.size < prevLength) more.value = true;
}
/**
@ -403,10 +414,10 @@ function unshiftItems(newItems: MisskeyEntity[]) {
* @param oldItems 古いアイテムの配列
*/
function concatItems(oldItems: MisskeyEntity[]) {
const length = oldItems.length + items.value.size;
items.value = new Map([...items.value, ...arrayToEntries(oldItems)].slice(0, props.displayLimit));
if (length >= props.displayLimit) more.value = true;
const prevLength = items.value.size;
items.value = new Map([...items.value, ...arrayToEntries(oldItems)].slice(0, oldItems.length + props.displayLimit));
// if we truncated, mark that there are more values to fetch
if (items.value.size < prevLength) more.value = true;
}
function executeQueue() {
@ -415,7 +426,7 @@ function executeQueue() {
}
function prependQueue(newItem: MisskeyEntity) {
queue.value = new Map([[newItem.id, newItem], ...queue.value].slice(0, props.displayLimit) as [string, MisskeyEntity][]);
queue.value = new Map([[newItem.id, newItem], ...queue.value] as [string, MisskeyEntity][]);
}
/*