wip

packages/frontend-embed/src/components/EmReactionsViewer.vue

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+<!--
+SPDX-FileCopyrightText: syuilo and misskey-project
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<div :class="$style.root">
+	<XReaction v-for="[reaction, count] in reactions" :key="reaction" :reaction="reaction" :count="count" :isInitial="initialReactions.has(reaction)" :note="note" @reactionToggled="onMockToggleReaction"/>
+	<slot v-if="hasMoreReactions" name="more"/>
+</div>
+</template>
+
+<script lang="ts" setup>
+import * as Misskey from 'misskey-js';
+import { inject, watch, ref } from 'vue';
+import XReaction from '@/components/EmReactionsViewer.reaction.vue';
+
+const props = withDefaults(defineProps<{
+	note: Misskey.entities.Note;
+	maxNumber?: number;
+}>(), {
+	maxNumber: Infinity,
+});
+
+const mock = inject<boolean>('mock', false);
+
+const emit = defineEmits<{
+	(ev: 'mockUpdateMyReaction', emoji: string, delta: number): void;
+}>();
+
+const initialReactions = new Set(Object.keys(props.note.reactions));
+
+const reactions = ref<[string, number][]>([]);
+const hasMoreReactions = ref(false);
+
+if (props.note.myReaction && !Object.keys(reactions.value).includes(props.note.myReaction)) {
+	reactions.value[props.note.myReaction] = props.note.reactions[props.note.myReaction];
+}
+
+function onMockToggleReaction(emoji: string, count: number) {
+	if (!mock) return;
+
+	const i = reactions.value.findIndex((item) => item[0] === emoji);
+	if (i < 0) return;
+
+	emit('mockUpdateMyReaction', emoji, (count - reactions.value[i][1]));
+}
+
+watch([() => props.note.reactions, () => props.maxNumber], ([newSource, maxNumber]) => {
+	let newReactions: [string, number][] = [];
+	hasMoreReactions.value = Object.keys(newSource).length > maxNumber;
+
+	for (let i = 0; i < reactions.value.length; i++) {
+		const reaction = reactions.value[i][0];
+		if (reaction in newSource && newSource[reaction] !== 0) {
+			reactions.value[i][1] = newSource[reaction];
+			newReactions.push(reactions.value[i]);
+		}
+	}
+
+	const newReactionsNames = newReactions.map(([x]) => x);
+	newReactions = [
+		...newReactions,
+		...Object.entries(newSource)
+			.sort(([, a], [, b]) => b - a)
+			.filter(([y], i) => i < maxNumber && !newReactionsNames.includes(y)),
+	];
+
+	newReactions = newReactions.slice(0, props.maxNumber);
+
+	if (props.note.myReaction && !newReactions.map(([x]) => x).includes(props.note.myReaction)) {
+		newReactions.push([props.note.myReaction, newSource[props.note.myReaction]]);
+	}
+
+	reactions.value = newReactions;
+}, { immediate: true, deep: true });
+</script>
+
+<style lang="scss" module>
+.transition_x_move,
+.transition_x_enterActive,
+.transition_x_leaveActive {
+	transition: opacity 0.2s cubic-bezier(0,.5,.5,1), transform 0.2s cubic-bezier(0,.5,.5,1) !important;
+}
+.transition_x_enterFrom,
+.transition_x_leaveTo {
+	opacity: 0;
+	transform: scale(0.7);
+}
+.transition_x_leaveActive {
+	position: absolute;
+}
+
+.root {
+	display: flex;
+	flex-wrap: wrap;
+	align-items: center;
+	margin: 4px -2px 0 -2px;
+
+	&:empty {
+		display: none;
+	}
+}
+</style>