make quick instances resizable

apps/app-frontend/src/App.vue

@@ -1555,7 +1555,6 @@ provideAppUpdateDownloadProgress(appUpdateDownload)
 			>
 				<ServerStackIcon />
 			</NavButton>
-			<div class="h-px w-6 mx-auto my-2 bg-surface-5"></div>
 			<suspense>
 				<QuickInstanceSwitcher />
 			</suspense>

apps/app-frontend/src/components/ui/QuickInstanceSwitcher.vue

@@ -1,6 +1,6 @@
 <script setup>
 import { SpinnerIcon } from '@modrinth/assets'
-import { Avatar, injectNotificationManager } from '@modrinth/ui'
+import { Avatar, defineMessages, injectNotificationManager, useVIntl } from '@modrinth/ui'
 import { convertFileSrc } from '@tauri-apps/api/core'
 import dayjs from 'dayjs'
 import { computed, onMounted, onUnmounted, ref } from 'vue'
@@ -10,17 +10,111 @@ import { instance_listener } from '@/helpers/events.js'
 import { list } from '@/helpers/instance'
 
 const ITEM_SIZE = 52
-const USED_VERTICAL_SPACE = 538
+const APPROX_USED_VERTICAL_SPACE = 513 // doesn't need to be exact lol just close enough so there's a little gap and no overflow
+const STORAGE_KEY = 'modrinth-quick-instance-count'
 
 const { handleError } = injectNotificationManager()
 
-const maxVisible = ref(0)
+const { formatMessage } = useVIntl()
+
+const maxAuto = ref(0)
 const allInstances = ref([])
+const dragging = ref(false)
 
-const recentInstances = computed(() => allInstances.value.slice(0, maxVisible.value))
+const stored = localStorage.getItem(STORAGE_KEY)
+const userLimit = ref(stored === null ? null : Number(stored))
 
-const updateMaxVisible = () => {
-	maxVisible.value = Math.max(0, Math.floor((window.innerHeight - USED_VERTICAL_SPACE) / ITEM_SIZE))
+const maxVisible = computed(() => Math.min(maxAuto.value, allInstances.value.length))
+const visibleCount = computed(() => Math.min(userLimit.value ?? maxVisible.value, maxVisible.value))
+const recentInstances = computed(() => allInstances.value.slice(0, visibleCount.value))
+const canDrag = computed(() => maxVisible.value > 0)
+const showOverdrag = ref(false)
+
+const updateMaxAuto = () => {
+	maxAuto.value = Math.max(
+		0,
+		Math.floor((window.innerHeight - APPROX_USED_VERTICAL_SPACE) / ITEM_SIZE),
+	)
+}
+
+const setLimit = (count) => {
+	const clamped = Math.max(0, Math.min(count, maxVisible.value))
+	if (clamped >= maxVisible.value) {
+		userLimit.value = null
+		localStorage.removeItem(STORAGE_KEY)
+	} else {
+		userLimit.value = clamped
+		localStorage.setItem(STORAGE_KEY, String(clamped))
+	}
+}
+
+let dragStartY = 0
+let dragStartCount = 0
+let wasOverdragging = false
+let overdragTimeout = null
+
+const clearOverdragFlash = () => {
+	showOverdrag.value = false
+	if (overdragTimeout !== null) {
+		clearTimeout(overdragTimeout)
+		overdragTimeout = null
+	}
+}
+
+const flashOverdrag = () => {
+	showOverdrag.value = true
+	if (overdragTimeout !== null) {
+		clearTimeout(overdragTimeout)
+	}
+	overdragTimeout = setTimeout(() => {
+		showOverdrag.value = false
+		overdragTimeout = null
+	}, 500)
+}
+
+const onDividerPointerDown = (event) => {
+	if (!canDrag.value) {
+		return
+	}
+	event.preventDefault()
+	dragging.value = true
+	wasOverdragging = false
+	clearOverdragFlash()
+	dragStartY = event.clientY
+	dragStartCount = visibleCount.value
+	document.body.classList.add('quick-instance-dragging')
+	event.currentTarget.setPointerCapture(event.pointerId)
+}
+
+const onDividerPointerMove = (event) => {
+	if (!dragging.value) {
+		return
+	}
+	const delta = event.clientY - dragStartY
+	const target = dragStartCount + Math.round(delta / ITEM_SIZE)
+	const isOverdragging = target < 0 || target > maxAuto.value
+	if (isOverdragging && !wasOverdragging) {
+		flashOverdrag()
+	}
+	wasOverdragging = isOverdragging
+	setLimit(target)
+}
+
+const endDrag = (event) => {
+	if (!dragging.value) {
+		return
+	}
+	dragging.value = false
+	wasOverdragging = false
+	clearOverdragFlash()
+	document.body.classList.remove('quick-instance-dragging')
+	if (event?.currentTarget?.hasPointerCapture?.(event.pointerId)) {
+		event.currentTarget.releasePointerCapture(event.pointerId)
+	}
+}
+
+const onDividerPointerUp = (event) => {
+	endDrag(event)
 }
 
 const getInstances = async () => {
@@ -45,7 +139,7 @@ const getInstances = async () => {
 }
 
 await getInstances()
-updateMaxVisible()
+updateMaxAuto()
 
 const unlistenInstance = await instance_listener(async (event) => {
 	if (event.event !== 'synced') {
@@ -54,33 +148,156 @@ const unlistenInstance = await instance_listener(async (event) => {
 })
 
 onMounted(() => {
-	window.addEventListener('resize', updateMaxVisible)
+	window.addEventListener('resize', updateMaxAuto)
 })
 
 onUnmounted(() => {
-	window.removeEventListener('resize', updateMaxVisible)
+	window.removeEventListener('resize', updateMaxAuto)
+	document.body.classList.remove('quick-instance-dragging')
+	clearOverdragFlash()
 	unlistenInstance()
 })
+
+const messages = defineMessages({
+	dragTooltip: {
+		id: 'app.quick-instance-switcher.drag-tooltip',
+		defaultMessage: 'Drag to resize',
+	},
+	dragShowTooltip: {
+		id: 'app.quick-instance-switcher.drag-show-tooltip',
+		defaultMessage: 'Drag to show recent instances',
+	},
+})
+
+const dividerTooltip = computed(() => {
+	if (!canDrag.value || dragging.value) {
+		return null
+	}
+	return formatMessage(visibleCount.value === 0 ? messages.dragShowTooltip : messages.dragTooltip)
+})
 </script>
 
 <template>
-	<div v-for="instance in recentInstances" :key="instance.id" v-tooltip.right="instance.name">
-		<NavButton :to="`/instance/${encodeURIComponent(instance.id)}`" class="relative">
-			<Avatar
-				:src="instance.icon_path ? convertFileSrc(instance.icon_path) : null"
-				size="28px"
-				:tint-by="instance.id"
-				:class="`transition-all ${instance.install_stage !== 'installed' ? `brightness-[0.25] scale-[0.85]` : `group-hover:brightness-75`}`"
-			/>
-			<div
-				v-if="instance.install_stage !== 'installed'"
-				class="absolute inset-0 flex items-center justify-center z-10 pointer-events-none"
-			>
-				<SpinnerIcon class="animate-spin w-4 h-4" />
-			</div>
-		</NavButton>
+	<Transition name="top-divider">
+		<div
+			v-if="recentInstances.length > 0"
+			class="top-divider flex items-center justify-center overflow-hidden"
+		>
+			<div class="h-px w-8 bg-surface-5 shrink-0"></div>
+		</div>
+	</Transition>
+	<TransitionGroup name="quick-instance" tag="div" class="flex flex-col items-center">
+		<div
+			v-for="instance in recentInstances"
+			:key="instance.id"
+			v-tooltip.right="instance.name"
+			class="quick-instance-item"
+		>
+			<NavButton :to="`/instance/${encodeURIComponent(instance.id)}`" class="relative">
+				<Avatar
+					:src="instance.icon_path ? convertFileSrc(instance.icon_path) : null"
+					size="28px"
+					:tint-by="instance.id"
+					:class="`transition-all ${instance.install_stage !== 'installed' ? `brightness-[0.25] scale-[0.85]` : `group-hover:brightness-75`}`"
+				/>
+				<div
+					v-if="instance.install_stage !== 'installed'"
+					class="absolute inset-0 flex items-center justify-center z-10 pointer-events-none"
+				>
+					<SpinnerIcon class="animate-spin w-4 h-4" />
+				</div>
+			</NavButton>
+		</div>
+	</TransitionGroup>
+	<div
+		v-tooltip.right="dividerTooltip"
+		class="flex items-center justify-center py-2 select-none"
+		:class="canDrag ? 'cursor-ns-resize touch-none group' : ''"
+		@pointerdown="onDividerPointerDown"
+		@pointermove="onDividerPointerMove"
+		@pointerup="onDividerPointerUp"
+		@pointercancel="onDividerPointerUp"
+	>
+		<div
+			class="h-px w-8 transition-colors duration-200"
+			:class="
+				showOverdrag ? 'bg-red' : canDrag ? 'bg-surface-5 group-hover:bg-secondary' : 'bg-surface-5'
+			"
+		></div>
 	</div>
-	<div v-if="recentInstances.length > 0" class="h-px w-6 mx-auto my-2 bg-divider"></div>
 </template>
 
-<style scoped lang="scss"></style>
+<style scoped lang="scss">
+.top-divider {
+	height: calc(1rem + 1px);
+}
+
+.top-divider-enter-active,
+.top-divider-leave-active {
+	transition:
+		opacity 0.25s ease,
+		height 0.25s ease;
+}
+
+.top-divider-enter-from,
+.top-divider-leave-to {
+	opacity: 0;
+	height: 0;
+}
+
+.quick-instance-item {
+	height: 3rem;
+	overflow: hidden;
+
+	& + & {
+		margin-top: 0.25rem;
+	}
+}
+
+.quick-instance-enter-active,
+.quick-instance-leave-active {
+	transition:
+		opacity 0.25s ease,
+		transform 0.25s ease,
+		height 0.25s ease,
+		margin-top 0.25s ease;
+}
+
+.quick-instance-enter-from,
+.quick-instance-leave-to {
+	opacity: 0;
+	transform: scale(0.5);
+	height: 0;
+	margin-top: 0 !important;
+}
+
+@media (prefers-reduced-motion: reduce) {
+	.top-divider-enter-active,
+	.top-divider-leave-active,
+	.quick-instance-enter-active,
+	.quick-instance-leave-active {
+		transition: none;
+	}
+
+	.top-divider-enter-from,
+	.top-divider-leave-to {
+		opacity: 1;
+		height: calc(1rem + 1px);
+	}
+
+	.quick-instance-enter-from,
+	.quick-instance-leave-to {
+		opacity: 1;
+		transform: none;
+		height: 3rem;
+		margin-top: unset !important;
+	}
+}
+</style>
+
+<style lang="scss">
+body.quick-instance-dragging,
+body.quick-instance-dragging * {
+	cursor: ns-resize !important;
+}
+</style>

apps/app-frontend/src/locales/en-US/index.json

@@ -809,6 +809,12 @@
   "app.project.versions.already-installed": {
     "message": "Already installed"
   },
+  "app.quick-instance-switcher.drag-show-tooltip": {
+    "message": "Drag to show recent instances"
+  },
+  "app.quick-instance-switcher.drag-tooltip": {
+    "message": "Drag to resize"
+  },
   "app.restarting": {
     "message": "Restarting..."
   },

packages/ui/src/layouts/shared/content-tab/components/ContentModpackCard.vue

@@ -117,7 +117,7 @@ onUnmounted(() => {
 <template>
 	<div
 		ref="containerRef"
-		class="@container flex flex-col gap-4 rounded-[20px] bg-bg-raised p-6 shadow-md"
+		class="@container flex flex-col gap-4 rounded-[20px] bg-bg-raised p-6 shadow-md border border-solid border-surface-4"
 		:class="{ 'opacity-50': disabled }"
 	>
 		<div class="flex flex-wrap items-start justify-between gap-4">