Adaptive list

// Copyright (c) 2026 Bruno Delorence. MIT License.'use client';import { useEffect, useRef, useState, type CSSProperties, type ReactNode } from 'react';import { Avatar, type Person } from './avatars';import {  CalendarIcon,  ContactIcon,  DealsIcon,  FilterIcon,  OwnerIcon,  StatusIcon,  TagIcon,  type Status,} from './icons';import styles from './adaptive-list.module.css';/* * Adaptive list: a grouped list that lays itself out for the room it has, and animates between * layouts as its container resizes. * * - compact: each row reads as a line, the amount after the name ("Tideline $450"), the date *   and the owner on the right;

/* Adaptive list (adaptive-list.tsx). Sizes in em: set a font-size on the list to scale it. The   layout is a data attribute the component sets from its width: compact, columns or wide. It has   no ground of its own: it sits on a light panel, or at night on a dark grey one. */.list {  /* Its colours, light and dark: each light-dark() pair resolves by the color-scheme the list     inherits from the page, or the one the colorScheme prop sets (below). */  /* The ground it sits on (the contacts' faces are cut out of it), then the stage headers a step     up, and the counts on them. */  --surface: #fff;  --surface-2: #f4f4f5;  --chip: #e8e8ea;  /* Names and titles; amounts, dates, icons and counts; the quietest marks. */  --ink: #1d1d1f;  --ink-muted: #86868b;  --ink-faint: #aeaeb2;  --line: #e8e8ea;  /* A row under the pointer. */  --hover: rgb(0 0 0 / 0.028);  /* A logo drawn in one dark colour, with no tile of its own, reversed at night (logos.tsx). The     other logos and the faces keep their colours. */  --logo-ink: #111;  /* The status icons' green, the check on it once a deal is won, and a lead's paler ring. */  --accent: #1b8a3a;

import type { SVGProps } from 'react';/* * The adaptive list's icons, drawn on a 16 × 16 grid with 1.25px strokes in `currentColor`, so they * take the colour of the text around them. */type IconProps = SVGProps<SVGSVGElement>;function Icon({ children, ...props }: IconProps) {  return (    <svg      viewBox="0 0 16 16"      width="16"      height="16"      fill="none"      stroke="currentColor"      strokeWidth="1.25"      strokeLinecap="round"      strokeLinejoin="round"      aria-hidden="true"      {...props}    >      {children}

/* * Small illustrated people for the sample deals' owners and contacts: no photos, so the demo needs * no image files and shows no real faces. Use an <img> in their place for real people. */export type Face = {  /** The backdrop, behind the head. */  bg: string;  skin: string;  hair: string;  shirt: string;  style: 'short' | 'long' | 'bun' | 'curly' | 'bald';  beard?: boolean;  glasses?: boolean;};export type Person = { name: string; face: Face };export function Avatar({ person, className }: { person: Person; className?: string }) {  const { bg, skin, hair, shirt, style, beard, glasses } = person.face;  return (    <svg className={className} viewBox="0 0 24 24" role="img" aria-label={person.name}>      <circle cx="12" cy="12" r="12" fill={bg} />      {style === 'long' && (

/* * Logos for the sample deals: made-up companies, each a 16 × 16 mark. Swap them for your own * customers' logos (an <img> works as well as an <svg>). */type LogoProps = { className?: string };function Mark({  className,  background,  children,}: LogoProps & { background?: string; children: React.ReactNode }) {  return (    <svg className={className} viewBox="0 0 16 16" width="16" height="16" aria-hidden="true">      {background && <rect width="16" height="16" rx="4" fill={background} />}      {children}    </svg>  );}export function TidelineLogo({ className }: LogoProps) {  return (    <Mark className={className} background="#1d6ff2">      <path d="M8 3.4c1.7 2 2.7 3.6 2.7 5a2.7 2.7 0 0 1-5.4 0c0-1.4 1-3 2.7-5Z" fill="#fff" />

import type { Person } from './avatars';import type { Stage } from './adaptive-list';import {  AlviLogo,  AshfordLogo,  BrambleLogo,  FieldedLogo,  HaldenLogo,  HollowayLogo,  NorthlaneLogo,  QuietworkLogo,  TidelineLogo,  VesperLogo,  WovenpathLogo,} from './logos';/* Sample pipeline for the demo: made-up companies, people and amounts. */const people = {  maya: {    name: 'Maya',    face: { bg: '#3a2a1f', skin: '#c58c63', hair: '#2b1a12', shirt: '#7a4a2a', style: 'curly' },  },  noah: {

'use client';import { useCallback, useEffect, useMemo, useRef, useState } from 'react';import { AdaptiveList, type Layout } from './adaptive-list';import { DEALS } from './deals';import { useAutoplay } from './use-autoplay';import styles from './playground.module.css';/* * The adaptive list's playground: the list in a side panel docked to the right of a stage, with a * handle on the panel's edge to resize it (drag, or arrow keys), and three widths to jump to. While * on screen and untouched, the panel opens and closes on its own. Its colours, and the list's, * follow the page's color-scheme, or the one the colorScheme prop sets. *//** The list's breakpoints, shared with the read-out. */const BREAKPOINTS = [616, 717] as const;/** The panel's border, between its width and the list's. */const BORDER = 2;const MIN = 420;const MAX = 900;/** The stage's margin round the panel. */const INSET = 12;

/* The adaptive list's playground (playground.tsx): a light stage with the list in a panel docked   to its right edge, resized from the panel's left edge; at night, a near-black stage and a dark   grey panel. */.root {  /* Its colours, light and dark: each light-dark() pair resolves by the color-scheme the root     inherits from the page, or the one the colorScheme prop sets (below). The list inside     inherits the same scheme. */  /* The stage, then the panel a step up. */  --surface: #efeff1;  --surface-2: #fcfcfc;  /* The width shown and a width under the pointer; the other widths; the read-out's words. */  --ink: #111;  --ink-muted: #6e6e76;  --ink-faint: #8a8a92;  /* The panel's edge, the stage's edge and dots; the widths' track and its edge. */  --line: #e3e3e6;  --edge: rgb(0 0 0 / 0.04);  --dots: rgb(0 0 0 / 0.045);  --track: rgb(0 0 0 / 0.05);  --track-line: rgb(0 0 0 / 0.06);  /* The chosen width and its text. */  --accent: #111;  --accent-ink: #fff;

'use client';import { useCallback, useEffect, useRef, useState } from 'react';/* * When a demo may play on its own: while part of it is on screen and the tab is visible, never * under reduced motion, and not while the reader is using it. `take()` hands it to the reader; it * takes back over `idle` ms after their last input. */export function useAutoplay<T extends HTMLElement>(idle = 6000) {  const ref = useRef<T>(null);  const [visible, setVisible] = useState(false);  const [reduced, setReduced] = useState(true);  const [taken, setTaken] = useState(false);  const timer = useRef(0);  useEffect(() => {    const element = ref.current;    if (!element) return;    let onScreen = false;    const update = () => setVisible(onScreen && !document.hidden);    const observer = new IntersectionObserver(      ([entry]) => {        onScreen = entry.isIntersecting;