factor out Following Feed list into SkFollowingRecentNotes.vue

packages/frontend/src/components/SkFollowingRecentNotes.vue

@@ -0,0 +1,122 @@
+<!--
+SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<MkPullToRefresh :refresher="() => reload()">
+	<MkPagination ref="latestNotesPaging" :pagination="latestNotesPagination" @init="onListReady">
+		<template #empty>
+			<div class="_fullinfo">
+				<img :src="infoImageUrl" class="_ghost" :alt="i18n.ts.noNotes" aria-hidden="true"/>
+				<div>{{ i18n.ts.noNotes }}</div>
+			</div>
+		</template>
+
+		<template #default="{ items: notes }">
+			<MkDateSeparatedList v-slot="{ item: note }" :items="notes" :class="$style.panel" :noGap="true">
+				<SkFollowingFeedEntry v-if="!isHardMuted(note)" :isMuted="isSoftMuted(note)" :note="note" @select="u => selectUser(u.id)"/>
+			</MkDateSeparatedList>
+		</template>
+	</MkPagination>
+</MkPullToRefresh>
+</template>
+
+<script setup lang="ts">
+import * as Misskey from 'misskey-js';
+import { computed, shallowRef } from 'vue';
+import { infoImageUrl } from '@/instance.js';
+import { i18n } from '@/i18n.js';
+import MkDateSeparatedList from '@/components/MkDateSeparatedList.vue';
+import MkPagination, { Paging } from '@/components/MkPagination.vue';
+import SkFollowingFeedEntry from '@/components/SkFollowingFeedEntry.vue';
+import { $i } from '@/account.js';
+import { checkWordMute } from '@/scripts/check-word-mute.js';
+import { FollowingFeedTab } from '@/scripts/following-feed-utils.js';
+import MkPullToRefresh from '@/components/MkPullToRefresh.vue';
+
+const props = defineProps<{
+	userList: FollowingFeedTab;
+	withNonPublic: boolean;
+	withQuotes: boolean;
+	withReplies: boolean;
+	withBots: boolean;
+	onlyFiles: boolean;
+}>();
+
+const emit = defineEmits<{
+	(event: 'loaded', initialUserId?: string): void;
+	(event: 'userSelected', userId: string): void;
+}>();
+
+defineExpose({ reload });
+
+async function reload() {
+	await latestNotesPaging.value?.reload();
+}
+
+function selectUser(userId: string) {
+	emit('userSelected', userId);
+}
+
+async function onListReady(): Promise<void> {
+	// This looks complicated, but it's really just a trick to get the first user ID from the pagination.
+	const initialUserId = latestNotesPaging.value?.items.size
+		? latestNotesPaging.value.items.values().next().value?.userId
+		: undefined;
+
+	emit('loaded', initialUserId);
+}
+
+const latestNotesPagination: Paging<'notes/following'> = {
+	endpoint: 'notes/following' as const,
+	limit: 20,
+	params: computed(() => ({
+		list: props.userList,
+		filesOnly: props.onlyFiles,
+		includeNonPublic: props.withNonPublic,
+		includeReplies: props.withReplies,
+		includeQuotes: props.withQuotes,
+		includeBots: props.withBots,
+	})),
+};
+
+const latestNotesPaging = shallowRef<InstanceType<typeof MkPagination>>();
+
+function isSoftMuted(note: Misskey.entities.Note): boolean {
+	return isMuted(note, $i?.mutedWords);
+}
+
+function isHardMuted(note: Misskey.entities.Note): boolean {
+	return isMuted(note, $i?.hardMutedWords);
+}
+
+// Match the typing used by Misskey
+type Mutes = (string | string[])[] | null | undefined;
+
+// Adapted from MkNote.ts
+function isMuted(note: Misskey.entities.Note, mutes: Mutes): boolean {
+	return checkMute(note, mutes)
+		|| checkMute(note.reply, mutes)
+		|| checkMute(note.renote, mutes);
+}
+
+// Adapted from check-word-mute.ts
+function checkMute(note: Misskey.entities.Note | undefined | null, mutes: Mutes): boolean {
+	if (!note) {
+		return false;
+	}
+
+	if (!mutes || mutes.length < 1) {
+		return false;
+	}
+
+	return checkWordMute(note, $i, mutes);
+}
+</script>
+
+<style module lang="scss">
+.panel {
+	background: var(--panel);
+}
+</style>

packages/frontend/src/components/global/SkLazy.vue

@@ -0,0 +1,57 @@
+<!--
+SPDX-FileCopyrightText: syuilo and misskey-project
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<!-- Based on MkLazy.vue -->
+
+<template>
+<div ref="rootEl" :class="$style.root">
+	<slot v-if="showing"></slot>
+	<div v-else :class="$style.placeholder"></div>
+</div>
+</template>
+
+<script lang="ts" setup>
+import { nextTick, onMounted, onActivated, onBeforeUnmount, ref, shallowRef } from 'vue';
+
+const rootEl = shallowRef<HTMLDivElement>();
+const showing = ref(false);
+
+defineExpose({ rootEl, showing });
+
+const observer = new IntersectionObserver(entries =>
+	showing.value = entries.some((entry) => entry.isIntersecting),
+);
+
+onMounted(() => {
+	nextTick(() => {
+		if (rootEl.value) {
+			observer.observe(rootEl.value);
+		}
+	});
+});
+
+onActivated(() => {
+	nextTick(() => {
+		if (rootEl.value) {
+			observer.observe(rootEl.value);
+		}
+	});
+});
+
+onBeforeUnmount(() => {
+	observer.disconnect();
+});
+</script>
+
+<style lang="scss" module>
+.root {
+	display: block;
+}
+
+.placeholder {
+	display: block;
+	min-height: 150px;
+}
+</style>