scrollable layer list

website/src/lib/components/layer-control/LayerControl.svelte

@@ -6,6 +6,7 @@
 
 	import Label from '$lib/components/ui/label/label.svelte';
 	import { Separator } from '$lib/components/ui/separator';
+	import { ScrollArea } from '$lib/components/ui/scroll-area/index.js';
 
 	import Fa from 'svelte-fa';
 	import { faLayerGroup } from '@fortawesome/free-solid-svg-icons';
@@ -36,6 +37,8 @@
 		class="transition-[grid-template-rows grid-template-cols] grid grid-rows-[0fr] grid-cols-[0fr] duration-150 group-hover:grid-rows-[1fr] group-hover:grid-cols-[1fr]"
 	>
 		<div class="overflow-hidden">
+			<ScrollArea>
+				<div class="h-fit max-h-[50vh]">
 					<div class="p-2">
 						<Label>Basemaps</Label>
 						<LayerTree
@@ -83,5 +86,7 @@
 					<Separator class="w-full" />
 					<div class="p-2">TODO: Add layer settings</div>
 				</div>
+			</ScrollArea>
+		</div>
 	</div>
 </CustomControl>

website/src/lib/components/ui/scroll-area/index.ts

@@ -0,0 +1,10 @@
+import Scrollbar from "./scroll-area-scrollbar.svelte";
+import Root from "./scroll-area.svelte";
+
+export {
+	Root,
+	Scrollbar,
+	//,
+	Root as ScrollArea,
+	Scrollbar as ScrollAreaScrollbar,
+};

website/src/lib/components/ui/scroll-area/scroll-area-scrollbar.svelte

@@ -0,0 +1,27 @@
+<script lang="ts">
+	import { ScrollArea as ScrollAreaPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	type $$Props = ScrollAreaPrimitive.ScrollbarProps & {
+		orientation?: "vertical" | "horizontal";
+	};
+
+	let className: $$Props["class"] = undefined;
+	export let orientation: $$Props["orientation"] = "vertical";
+	export { className as class };
+</script>
+
+<ScrollAreaPrimitive.Scrollbar
+	{orientation}
+	class={cn(
+		"flex touch-none select-none transition-colors",
+		orientation === "vertical" && "h-full w-2.5 border-l border-l-transparent p-px",
+		orientation === "horizontal" && "h-2.5 w-full border-t border-t-transparent p-px",
+		className
+	)}
+>
+	<slot />
+	<ScrollAreaPrimitive.Thumb
+		class={cn("relative rounded-full bg-border", orientation === "vertical" && "flex-1")}
+	/>
+</ScrollAreaPrimitive.Scrollbar>

website/src/lib/components/ui/scroll-area/scroll-area.svelte

@@ -0,0 +1,32 @@
+<script lang="ts">
+	import { ScrollArea as ScrollAreaPrimitive } from "bits-ui";
+	import { Scrollbar } from "./index.js";
+	import { cn } from "$lib/utils.js";
+
+	type $$Props = ScrollAreaPrimitive.Props & {
+		orientation?: "vertical" | "horizontal" | "both";
+		scrollbarXClasses?: string;
+		scrollbarYClasses?: string;
+	};
+
+	let className: $$Props["class"] = undefined;
+	export { className as class };
+	export let orientation = "vertical";
+	export let scrollbarXClasses: string = "";
+	export let scrollbarYClasses: string = "";
+</script>
+
+<ScrollAreaPrimitive.Root {...$$restProps} class={cn("relative overflow-hidden", className)}>
+	<ScrollAreaPrimitive.Viewport class="h-full w-full rounded-[inherit]">
+		<ScrollAreaPrimitive.Content>
+			<slot />
+		</ScrollAreaPrimitive.Content>
+	</ScrollAreaPrimitive.Viewport>
+	{#if orientation === "vertical" || orientation === "both"}
+		<Scrollbar orientation="vertical" class={scrollbarYClasses} />
+	{/if}
+	{#if orientation === "horizontal" || orientation === "both"}
+		<Scrollbar orientation="horizontal" class={scrollbarXClasses} />
+	{/if}
+	<ScrollAreaPrimitive.Corner />
+</ScrollAreaPrimitive.Root>