0.3.4

- uses prop instead of attempting to read env variable
- uses URL type instead of custom heuristics

package.json

@@ -4,7 +4,7 @@
 		"type": "git",
 		"url": "https://gitea.auvem.com/svelte-toolkit/sui.git"
 	},
-	"version": "0.3.0",
+	"version": "0.3.4",
 	"scripts": {
 		"dev": "vite dev",
 		"build": "vite build && pnpm run prepack",

src/lib/Banner.svelte

@@ -0,0 +1,259 @@
+<script lang="ts" module>
+	export interface BannerAPI {
+		/** opens the banner */
+		open: () => void;
+		/** closes the banner */
+		close: () => void;
+		/** returns whether the banner is open */
+		isOpen: () => boolean;
+		/** disables banner controls */
+		disable: () => void;
+		/** enables banner controls */
+		enable: () => void;
+		/** returns whether the banner controls are disabled */
+		isDisabled: () => boolean;
+		/** freezes banner state (cannot be dismissed) */
+		freeze: () => void;
+		/** unfreezes banner state */
+		unfreeze: () => void;
+		/** returns whether the banner is frozen */
+		isFrozen: () => boolean;
+	}
+
+	type BannerControlButton = {
+		label?: string;
+		class?: ClassValue;
+		/** if framed is false, FramelessButton is used instead of Button */
+		framed?: boolean;
+		action?: (banner: BannerAPI) => void;
+	};
+
+	export type BannerControls = {
+		accept?: BannerControlButton | null;
+		decline?: BannerControlButton | null;
+		moreInfo?:
+			| (Omit<BannerControlButton, 'framed'> & {
+					type?: 'link' | 'framed' | 'frameless';
+					href?: string;
+			  })
+			| null;
+		dismiss?: Omit<BannerControlButton, 'framed'> | null;
+		/** if true, accept and decline buttons are swapped with more info */
+		swap?: boolean | null;
+	};
+
+	const defaultBannerControls: BannerControls = {
+		accept: {
+			label: 'Accept',
+			framed: true,
+			action: (banner) => banner.close()
+		},
+		decline: {
+			label: 'Decline',
+			framed: false,
+			action: (banner) => banner.close()
+		},
+		dismiss: {
+			action: (banner) => banner.close()
+		},
+		swap: false
+	};
+
+	const mergeBannerControls = (
+		defaults: BannerControls,
+		overrides?: BannerControls | null
+	): BannerControls => {
+		if (overrides == null) return { ...defaults };
+
+		const result: BannerControls = { ...defaults };
+
+		const keys: (keyof BannerControls)[] = ['accept', 'decline', 'moreInfo', 'dismiss', 'swap'];
+
+		for (const key of keys) {
+			const ov = overrides[key];
+			if (ov === null) {
+				// explicit disable
+				result[key] = null;
+				continue;
+			}
+			if (ov === undefined) continue; // keep default
+			if (key === 'swap') {
+				result.swap = ov as boolean;
+				continue;
+			}
+			// shallow merge individual control fields
+			result[key] = {
+				...(defaults[key] ?? {}),
+				...(ov as any)
+			} as any;
+		}
+
+		return result;
+	};
+</script>
+
+<script lang="ts">
+	import type { Snippet } from 'svelte';
+	import type { ClassValue } from 'svelte/elements';
+	import Link from './Link.svelte';
+	import Button from './Button.svelte';
+	import FramelessButton from './FramelessButton.svelte';
+	import { X } from 'phosphor-svelte';
+
+	/**
+	 * Banner provides a simple component to display a banner message with
+	 * additional tooling for easy control integration. Controls tools are
+	 * geared toward cookie consent, announcements, and similar use cases.
+	 */
+
+	interface Props {
+		title?: string;
+		open?: boolean;
+		disabled?: boolean;
+		frozen?: boolean;
+		position?: 'top' | 'bottom';
+		controls?: BannerControls | null;
+		/** if true, frameless buttons and links are inverted (default: true) */
+		invertFrameless?: boolean;
+		class?: ClassValue | null;
+		onaccept?: (banner: BannerAPI) => void;
+		ondecline?: (banner: BannerAPI) => void;
+		children?: Snippet;
+	}
+
+	let {
+		title,
+		open = $bindable(false),
+		disabled = $bindable(false),
+		frozen = $bindable(false),
+		position,
+		controls: rawControls = defaultBannerControls,
+		invertFrameless = true,
+		class: classValue,
+		onaccept,
+		ondecline,
+		children
+	}: Props = $props();
+
+	const controls = $derived(mergeBannerControls(defaultBannerControls, rawControls));
+
+	const api: BannerAPI = {
+		open: () => (open = true),
+		close: () => (open = false),
+		isOpen: () => open,
+		disable: () => (disabled = true),
+		enable: () => (disabled = false),
+		isDisabled: () => disabled,
+		freeze: () => (frozen = true),
+		unfreeze: () => (frozen = false),
+		isFrozen: () => frozen
+	};
+
+	const handleAccept = () => {
+		controls.accept?.action?.(api);
+		onaccept?.(api);
+	};
+	const handleDecline = () => {
+		controls.decline?.action?.(api);
+		ondecline?.(api);
+	};
+</script>
+
+{#if open}
+	<div
+		class={[
+			'fixed left-0 z-50 w-screen px-8 py-6',
+			position === 'top' ? 'top-0' : 'bottom-0',
+			'bg-sui-secondary-800 text-sui-background',
+			classValue
+		]}
+	>
+		{#if title || controls?.dismiss}
+			<div class="mb-2 flex items-center justify-between gap-4">
+				{#if title}
+					<h3 class="mb-2 text-lg font-semibold">{title}</h3>
+				{/if}
+
+				{#if controls?.dismiss}
+					<FramelessButton
+						inverted={invertFrameless}
+						onclick={() => controls.dismiss?.action?.(api)}
+						class="ml-auto"
+					>
+						{#if controls.dismiss?.label}
+							{controls.dismiss.label}
+						{/if}
+						<X class="mt-0.5" size="1.2rem" weight="bold" />
+					</FramelessButton>
+				{/if}
+			</div>
+		{/if}
+
+		{@render children?.()}
+
+		{#if controls !== null}
+			<div
+				class={['mt-4 flex flex-wrap justify-between gap-4', controls.swap && 'flex-row-reverse']}
+			>
+				<!-- More info button/link -->
+				{#if controls.moreInfo}
+					{#if controls.moreInfo.type === 'link' && controls.moreInfo.href}
+						<Link
+							href={controls.moreInfo.href}
+							class={controls.moreInfo.class}
+							inverted={invertFrameless}
+						>
+							{controls.moreInfo.label || 'More Info'}
+						</Link>
+					{:else if controls.moreInfo.type === 'framed'}
+						<Button
+							class={controls.moreInfo.class}
+							onclick={() => controls.moreInfo?.action?.(api)}
+						>
+							{controls.moreInfo.label || 'More Info'}
+						</Button>
+					{:else}
+						<FramelessButton
+							class={controls.moreInfo.class}
+							onclick={() => controls.moreInfo?.action?.(api)}
+							inverted={invertFrameless}
+						>
+							{controls.moreInfo.label || 'More Info'}
+						</FramelessButton>
+					{/if}
+				{/if}
+
+				<div
+					class={['flex justify-end gap-4', controls.swap ? 'mr-auto flex-row-reverse' : 'ml-auto']}
+				>
+					<!-- Decline button -->
+					{@render buttonControl(controls.decline, handleDecline, false)}
+					<!-- Accept button -->
+					{@render buttonControl(controls.accept, handleAccept, true)}
+				</div>
+			</div>
+		{/if}
+	</div>
+{/if}
+
+{#snippet buttonControl(
+	button: BannerControlButton | undefined | null,
+	handleClick: (banner: BannerAPI) => void,
+	framedDefault: boolean
+)}
+	{#if button}
+		{#if button.framed || framedDefault}
+			<Button class={button.class} onclick={() => handleClick(api)}>
+				{button.label || 'Button'}
+			</Button>
+		{:else}
+			<FramelessButton
+				class={button.class}
+				onclick={() => handleClick(api)}
+				inverted={invertFrameless}
+			>
+				{button.label || 'Button'}
+			</FramelessButton>
+		{/if}
+	{/if}
+{/snippet}

src/lib/FramelessButton.svelte

@@ -7,6 +7,7 @@
 		icon?: IconDef;
 		iconPosition?: 'left' | 'right';
 		disabled?: boolean;
+		inverted?: boolean;
 		class?: ClassValue | null | undefined;
 		children: Snippet;
 		onclick?: MouseEventHandler<HTMLButtonElement>;
@@ -16,6 +17,7 @@
 		icon,
 		iconPosition = 'right',
 		disabled = false,
+		inverted = false,
 		class: classValue,
 		children,
 		onclick
@@ -31,8 +33,11 @@
 <button
 	type="button"
 	class={[
-		'text-sui-accent hover:text-sui-primary inline-flex cursor-pointer items-center gap-1.5 transition-colors',
+		'inline-flex cursor-pointer items-center gap-1.5 transition-colors',
 		disabled && 'pointer-events-none cursor-not-allowed opacity-50',
+		inverted
+			? 'text-sui-background hover:text-sui-background/80 font-medium'
+			: 'text-sui-accent hover:text-sui-primary',
 		classValue
 	]}
 	{onclick}

src/lib/InputGroup.svelte

@@ -9,6 +9,6 @@
 	let { class: classList, children }: Props = $props();
 </script>
 
-<div class={['mt-4 flex min-w-80 items-center justify-start gap-2', classList]}>
+<div class={['mt-4 flex min-w-80 flex-wrap items-center justify-start gap-2', classList]}>
 	{@render children?.()}
 </div>

src/lib/Link.svelte

@@ -1,32 +1,46 @@
 <script lang="ts" module>
-	import { env } from '$env/dynamic/public';
+	/**
+	 * Rewrites the href based on a given basepath.
+	 * If the href is absolute, it is returned as is.
+	 * If the href is relative, the basepath is prepended.
+	 * @param href The original href.
+	 * @returns The rewritten href.
+	 */
+	export const rewriteHref = (href: string, basepath?: string | null): string => {
+		// If no base path is set, return the href as is
+		if (!basepath) return href;
 
-	const { PUBLIC_BASEPATH } = env;
+		// Use URL API to determine if href is relative or absolute
-
+		try {
-	const trim = (str: string, char: string, trimStart?: boolean, trimEnd?: boolean) => {
+			// this will only succeed if href is absolute
-		let start = 0,
+			const independentUrl = new URL(href);
-			end = str.length;
+			return independentUrl.toString();
-
+		} catch {
-		if (trimStart || trimStart === undefined) {
+			// now we can assume that href is relative or entirely invalid
-			while (start < end && str[start] === char) start++;
+			// test with a generic baseURI to see if it's valid relative
+			try {
+				const relativeUrl = new URL(href, 'http://example.com');
+				// if we reach here, it's a valid relative URL
+				const prefix = trimEdges(basepath, '/');
+				return `/${prefix}/${trimEdges(relativeUrl.pathname, '/', true, false)}`;
+			} catch {
+				throw new Error(`Attempted to rewrite invalid href: ${href}`);
+			}
 		}
-
-		if (trimEnd || trimEnd === undefined) {
-			while (end > start && str[end - 1] === char) end--;
-		}
-
-		return str.substring(start, end);
 	};
 </script>
 
 <script lang="ts">
 	import type { Snippet } from 'svelte';
 	import type { ClassValue, MouseEventHandler } from 'svelte/elements';
+	import { trimEdges } from './util';
 
 	interface Props {
 		href: string;
+		basepath?: string | null;
 		disabled?: boolean;
 		tab?: 'current' | 'new';
+		inverted?: boolean;
 		class?: ClassValue | null | undefined;
 		children: Snippet;
 		onclick?: MouseEventHandler<HTMLAnchorElement>;
@@ -34,26 +48,28 @@
 
 	let {
 		href,
+		basepath,
 		disabled = false,
 		tab = 'current',
+		inverted = false,
 		class: classValue,
 		children,
 		onclick
 	}: Props = $props();
 
-	if (PUBLIC_BASEPATH && !href.startsWith('http://') && !href.startsWith('https://')) {
+	const computedHref = $derived(rewriteHref(href, basepath));
-		let prefix = trim(PUBLIC_BASEPATH, '/');
-		href = `/${prefix}/${trim(href, '/', true, false)}`;
-	}
 </script>
 
 <a
 	class={[
-		'text-sui-accent hover:text-sui-primary inline-flex items-center gap-1.5 transition-colors',
+		'inline-flex items-center gap-1.5 transition-colors',
 		disabled && 'pointer-events-none cursor-not-allowed opacity-50',
+		inverted
+			? 'text-sui-background hover:text-sui-background/80 font-medium'
+			: 'text-sui-accent hover:text-sui-primary',
 		classValue
 	]}
-	{href}
+	href={computedHref}
 	target={tab === 'new' ? '_blank' : undefined}
 	rel={tab === 'new' ? 'noopener noreferrer' : undefined}
 	{onclick}

src/lib/index.ts

@@ -1,5 +1,6 @@
 // Reexport your entry components here
 export { default as ActionSelect, type ActionSelectOption } from './ActionSelect.svelte';
+export { default as Banner, type BannerControls, type BannerAPI } from './Banner.svelte';
 export { default as Button } from './Button.svelte';
 export { default as CenterBox } from './CenterBox.svelte';
 export { default as Checkbox, type CheckboxState } from './Checkbox.svelte';
@@ -18,7 +19,7 @@ export { default as InjectGoogleMaps } from './InjectGoogleMaps.svelte';
 export { default as InjectUmami } from './InjectUmami.svelte';
 export { default as InputGroup } from './InputGroup.svelte';
 export { default as Label } from './Label.svelte';
-export { default as Link } from './Link.svelte';
+export { default as Link, rewriteHref } from './Link.svelte';
 export { default as PhoneInput } from './PhoneInput.svelte';
 export { default as PinInput } from './PinInput.svelte';
 export { default as RadioGroup } from './RadioGroup.svelte';
@@ -47,7 +48,8 @@ export {
 	getValue,
 	targetMust,
 	capitalizeFirstLetter,
-	prefixZero
+	prefixZero,
+	trimEdges
 } from './util';
 export {
 	type ToolbarToggleState,

src/lib/util.ts

@@ -120,3 +120,26 @@ export const prefixZero = (str: string): string => {
 	}
 	return str;
 };
+
+/**
+ * Trims the specified character from the start and/or end of the string.
+ * @param str The string to trim.
+ * @param char The character to trim.
+ * @param trimStart Whether to trim from the start of the string. Default: true.
+ * @param trimEnd Whether to trim from the end of the string. Default: true.
+ * @returns The trimmed string.
+ */
+export const trimEdges = (str: string, char: string, trimStart?: boolean, trimEnd?: boolean) => {
+	let start = 0,
+		end = str.length;
+
+	if (trimStart || trimStart === undefined) {
+		while (start < end && str[start] === char) start++;
+	}
+
+	if (trimEnd || trimEnd === undefined) {
+		while (end > start && str[end - 1] === char) end--;
+	}
+
+	return str.substring(start, end);
+};

src/routes/+page.svelte

@@ -39,6 +39,7 @@
 	import ErrorBox from '$lib/ErrorBox.svelte';
 	import TextareaInput from '$lib/TextareaInput.svelte';
 	import DurationInput, { formatDuration } from '$lib/DurationInput.svelte';
+	import Banner from '$lib/Banner.svelte';
 
 	// Lazy-load heavy components
 	let PhoneInput = createLazyComponent(() => import('$lib/PhoneInput.svelte'));
@@ -56,7 +57,7 @@
 		{ value: 'option3', label: 'Option 3', disabled: true }
 	];
 	let lazyOptions: ComboboxOption[] = $state([]);
-	let dateInputValue = $state<CalendarDate | undefined>(undefined);
+	let dateInputValue = $state<CalendarDate | null>(null);
 	let checkboxValue = $state<CheckboxState>('indeterminate');
 	let dialogOpen = $state(false);
 	let scrollableDialogOpen = $state(false);
@@ -74,7 +75,25 @@
 	const boldStore = boldToggle.store;
 </script>
 
-<title>sui</title>
+<svelte:head>
+	<title>sui</title>
+</svelte:head>
+
+<!-- Cookie Consent Banner Demo -->
+<Banner
+	title="Manage Cookies"
+	controls={{
+		moreInfo: { label: 'More Info', type: 'link', href: '#!' },
+		dismiss: null,
+		swap: true
+	}}
+	onaccept={() => console.log('Cookies accepted!')}
+	ondecline={() => console.log('Cookies declined!')}
+	open
+>
+	We use cookies and similar technologies to enhance your experience, analyze site traffic, and
+	measure our ads. You can manage your preferences anytime.
+</Banner>
 
 <h1 class="mb-4 text-3xl font-bold">sui — Opinionated Svelte 5 UI toolkit</h1>
 
@@ -476,6 +495,23 @@
 	{/snippet}
 </div>
 
+<!-- Link with href rewriting -->
+<div class="component">
+	<p class="title">Link (with href rewriting)</p>
+
+	<p class="mb-3">
+		href rewriting allows you to prepend a basepath to relative links, making it easier to manage
+		URLs in your application. It is recommended to wrap this element with your own, e.g. AppLink,
+		that automatically provides the basepath from your app's configuration.
+	</p>
+
+	<div class="flex flex-col gap-3">
+		<Link href="/about" basepath="/sui-demo">Go to About Page (with basepath)</Link>
+		<Link href="https://svelte.dev" basepath="/sui-demo">External Svelte Site</Link>
+		<Link href="contact">Contact Us (relative link, no basepath)</Link>
+	</div>
+</div>
+
 <!-- Regular Dialog Demo -->
 <Dialog
 	bind:open={dialogOpen}