From 295fe859d86f720546691b87661ff63303595fd9 Mon Sep 17 00:00:00 2001
From: syuilo <4439005+syuilo@users.noreply.github.com>
Date: Fri, 2 May 2025 09:37:51 +0900
Subject: [PATCH] wip

---
 .../frontend/src/components/MkTimeline.vue    | 48 +++++++++++++------
 packages/frontend/src/use/use-pagination.ts   | 31 ++++++++----
 2 files changed, 55 insertions(+), 24 deletions(-)

diff --git a/packages/frontend/src/components/MkTimeline.vue b/packages/frontend/src/components/MkTimeline.vue
index aa50934225..06bff715bf 100644
--- a/packages/frontend/src/components/MkTimeline.vue
+++ b/packages/frontend/src/components/MkTimeline.vue
@@ -19,12 +19,10 @@ SPDX-License-Identifier: AGPL-3.0-only
 	</div>
 
 	<div v-else ref="rootEl">
-		<div v-if="paginator.queue.value.length > 0" :class="$style.new" @click="releaseQueue()">
+		<div v-if="paginator.queuedAheadItemsCount.value > 0" :class="$style.new">
 			<div :class="$style.newBg1"></div>
 			<div :class="$style.newBg2"></div>
-			<div :class="$style.newBg3"></div>
-			<div :class="$style.newBg4"></div>
-			<button class="_button" :class="$style.newButton"><i class="ti ti-circle-arrow-up"></i> {{ i18n.ts.newNote }}</button>
+			<button class="_button" :class="$style.newButton" @click="releaseQueue()"><i class="ti ti-circle-arrow-up"></i> {{ i18n.ts.newNote }}</button>
 		</div>
 		<component
 			:is="prefer.s.animation ? TransitionGroup : 'div'"
@@ -405,26 +403,46 @@ defineExpose({
 }
 
 /* 疑似progressive blur */
-.newBg1, .newBg2, .newBg3, .newBg4 {
+.newBg1, .newBg2 {
 	position: absolute;
 	top: 0;
 	left: 0;
 	right: 0;
 	bottom: 0;
-	-webkit-backdrop-filter: var(--MI-blur, blur(1px));
-	backdrop-filter: var(--MI-blur, blur(1px));
+}
+
+.newBg1 {
+	height: 100%;
+	-webkit-backdrop-filter: var(--MI-blur, blur(2px));
+	backdrop-filter: var(--MI-blur, blur(2px));
+	mask-image: linear-gradient( /* 疑似Easing Linear Gradients */
+		to top,
+		rgb(0 0 0 / 0%) 0%,
+		rgb(0 0 0 / 4.9%) 7.75%,
+		rgb(0 0 0 / 10.4%) 11.25%,
+		rgb(0 0 0 / 45%) 23.55%,
+		rgb(0 0 0 / 55%) 26.45%,
+		rgb(0 0 0 / 89.6%) 38.75%,
+		rgb(0 0 0 / 95.1%) 42.25%,
+		rgb(0 0 0 / 100%) 50%
+	);
 }
 
 .newBg2 {
 	height: 75%;
-}
-
-.newBg3 {
-	height: 50%;
-}
-
-.newBg4 {
-	height: 25%;
+	-webkit-backdrop-filter: var(--MI-blur, blur(4px));
+	backdrop-filter: var(--MI-blur, blur(4px));
+	mask-image: linear-gradient( /* 疑似Easing Linear Gradients */
+		to top,
+		rgb(0 0 0 / 0%) 0%,
+		rgb(0 0 0 / 4.9%) 15.5%,
+		rgb(0 0 0 / 10.4%) 22.5%,
+		rgb(0 0 0 / 45%) 47.1%,
+		rgb(0 0 0 / 55%) 52.9%,
+		rgb(0 0 0 / 89.6%) 77.5%,
+		rgb(0 0 0 / 95.1%) 91.9%,
+		rgb(0 0 0 / 100%) 100%
+	);
 }
 
 .newButton {
diff --git a/packages/frontend/src/use/use-pagination.ts b/packages/frontend/src/use/use-pagination.ts
index 3193e263fd..94009acb63 100644
--- a/packages/frontend/src/use/use-pagination.ts
+++ b/packages/frontend/src/use/use-pagination.ts
@@ -9,6 +9,7 @@ import type { ComputedRef, Ref, ShallowRef } from 'vue';
 import { misskeyApi } from '@/utility/misskey-api.js';
 
 const MAX_ITEMS = 20;
+const MAX_QUEUE_ITEMS = 100;
 const FIRST_FETCH_LIMIT = 15;
 const SECOND_FETCH_LIMIT = 30;
 
@@ -43,7 +44,8 @@ export function usePagination<T extends MisskeyEntity>(props: {
 	useShallowRef?: boolean;
 }) {
 	const items = props.useShallowRef ? shallowRef<T[]>([]) : ref<T[]>([]);
-	const queue = props.useShallowRef ? shallowRef<T[]>([]) : ref<T[]>([]);
+	let aheadQueue: T[] = [];
+	const queuedAheadItemsCount = ref(0);
 	const fetching = ref(true);
 	const moreFetching = ref(false);
 	const canFetchMore = ref(false);
@@ -54,6 +56,9 @@ export function usePagination<T extends MisskeyEntity>(props: {
 
 	function getNewestId() {
 		// 様々な要因により並び順は保証されないのでソートが必要
+		if (aheadQueue.length > 0) {
+			return aheadQueue.map(x => x.id).sort().at(-1);
+		}
 		return items.value.map(x => x.id).sort().at(-1);
 	}
 
@@ -64,7 +69,8 @@ export function usePagination<T extends MisskeyEntity>(props: {
 
 	async function init(): Promise<void> {
 		items.value = [];
-		queue.value = [];
+		aheadQueue = [];
+		queuedAheadItemsCount.value = 0;
 		fetching.value = true;
 		const params = props.ctx.params ? isRef(props.ctx.params) ? props.ctx.params.value : props.ctx.params : {};
 		await misskeyApi<T[]>(props.ctx.endpoint, {
@@ -143,8 +149,11 @@ export function usePagination<T extends MisskeyEntity>(props: {
 			}),
 		}).then(res => {
 			if (options.toQueue) {
-				queue.value.unshift(...res.toReversed());
-				if (props.useShallowRef) triggerRef(queue);
+				aheadQueue.unshift(...res.toReversed());
+				if (aheadQueue.length > MAX_QUEUE_ITEMS) {
+					aheadQueue = aheadQueue.slice(0, MAX_QUEUE_ITEMS);
+				}
+				queuedAheadItemsCount.value = aheadQueue.length;
 			} else {
 				items.value.unshift(...res.toReversed());
 				if (props.useShallowRef) triggerRef(items);
@@ -173,13 +182,17 @@ export function usePagination<T extends MisskeyEntity>(props: {
 	}
 
 	function enqueue(item: T) {
-		queue.value.unshift(item);
-		if (props.useShallowRef) triggerRef(queue);
+		aheadQueue.unshift(item);
+		if (aheadQueue.length > MAX_QUEUE_ITEMS) {
+			aheadQueue.pop();
+		}
+		queuedAheadItemsCount.value = aheadQueue.length;
 	}
 
 	function releaseQueue() {
-		unshiftItems(queue.value);
-		queue.value = [];
+		unshiftItems(aheadQueue);
+		aheadQueue = [];
+		queuedAheadItemsCount.value = 0;
 	}
 
 	onMounted(() => {
@@ -188,7 +201,7 @@ export function usePagination<T extends MisskeyEntity>(props: {
 
 	return {
 		items,
-		queue,
+		queuedAheadItemsCount,
 		fetching,
 		moreFetching,
 		canFetchMore,