misskey/src/client/app/common/views/components/media-list.vue

<template>
<div class="mk-media-list" :data-count="mediaList.length">
	<template v-for="media in mediaList">
		<mk-media-video :video="media" :key="media.id" v-if="media.type.startsWith('video')" :inline-playable="mediaList.length === 1"/>
		<mk-media-image :image="media" :key="media.id" v-else :raw="raw"/>
	</template>
</div>
</template>

<script lang="ts">
import Vue from 'vue';

export default Vue.extend({
	props: {
		mediaList: {
			required: true
		},
		raw: {
			default: false
		}
	}
});
</script>

<style lang="stylus" scoped>
.mk-media-list
	display grid
	grid-gap 4px
	height 256px

	@media (max-width 500px)
		height 192px

	&[data-count="1"]
		grid-template-rows 1fr
	&[data-count="2"]
		grid-template-columns 1fr 1fr
		grid-template-rows 1fr
	&[data-count="3"]
		grid-template-columns 1fr 0.5fr
		grid-template-rows 1fr 1fr
		:nth-child(1)
			grid-row 1 / 3
		:nth-child(3)
			grid-column 2 / 3
			grid-row 2/3
	&[data-count="4"]
		grid-template-columns 1fr 1fr
		grid-template-rows 1fr 1fr

	:nth-child(1)
		grid-column 1 / 2
		grid-row 1 / 2
	:nth-child(2)
		grid-column 2 / 3
		grid-row 1 / 2
	:nth-child(3)
		grid-column 1 / 2
		grid-row 2 / 3
	:nth-child(4)
		grid-column 2 / 3
		grid-row 2 / 3

</style>