"use client";
import { useEffect, useId, useLayoutEffect, useRef, useState } from 'react';
import { DotsThree, Plus } from '@phosphor-icons/react';
import { usePrefersReducedMotion } from './usePrefersReducedMotion';
import './MenuBarAgendaDemo.css';
/* A design engineer's afternoon: everything after the 12:20 clock. */
const DAY = { weekday: 'Wednesday', date: 'November 4, 2026' };
const EVENTS = [
{ id: 'critique', title: 'Design critique', time: '1:00 PM', kind: 'call' },
{ id: 'prototype', title: 'Prototype review', time: '2:30 PM', kind: 'call' },
{ id: 'focus', title: 'Focus: onboarding flow', time: '4:00 PM', kind: 'block' },
];
/* Tasks start on tomorrow's list; dragging one moves it to today. */
const TASKS = [
{ id: 'notes', title: 'Send critique notes to the team', day: 'tomorrow' },
{ id: 'polish', title: 'Polish the onboarding prototype', day: 'tomorrow' },
{ id: 'recruit', title: 'Recruit five interview participants', day: 'tomorrow' },
{ id: 'tokens', title: 'Update the colour tokens', day: 'tomorrow' },
{ id: 'release', title: 'Write the release notes', day: 'tomorrow' },
];
const MAX_TASKS = 9;
/* A mouse drag starts after 4px of travel, so a click still ticks. Touch
waits for a short hold, so a swipe still scrolls the page. */
const DRAG_THRESHOLD = 4;
const TOUCH_HOLD = 300;
/* Moves task `id` to position `index` among that day's other tasks. */
function placeTask(list, id, day, index) {
const task = list.find(item => item.id === id);
const rest = list.filter(item => item.id !== id);
const sameDay = rest.filter(item => item.day === day);
const moved = { ...task, day, fresh: false };
if (index < sameDay.length)
rest.splice(rest.indexOf(sameDay[index]), 0, moved);
else if (sameDay.length)
rest.splice(rest.indexOf(sameDay[sameDay.length - 1]) + 1, 0, moved);
else
rest.splice(day === 'today' ? 0 : rest.length, 0, moved);
return rest;
}
/* The thumbnail's pointer rests in the panel's lower right between actions,
in artboard pixels. */
const POINTER_REST = { x: 300, y: 400 };
/* Sizes come from the reference photo with its perspective removed, in CSS
pixels. The artboard is the panel plus the 33px the menu bar takes above
it, mirrored below, so the panel stays centred as its rows come and go.
It scales down to fit smaller frames and never scales up. */
const ARTBOARD_WIDTH = 354;
const MARGIN = 24;
function fitScale(width, height, artboardHeight) {
return Math.min(1, (width - MARGIN * 2) / ARTBOARD_WIDTH, (height - MARGIN * 2) / artboardHeight);
}
/* Claude's mark, from Simple Icons (CC0). */
function ClaudeGlyph() {
return (<svg className="tlpg-mba-claude" viewBox="0 0 24 24" aria-hidden="true">
<path fill="currentColor" d="m4.7144 15.9555 4.7174-2.6471.079-.2307-.079-.1275h-.2307l-.7893-.0486-2.6956-.0729-2.3375-.0971-2.2646-.1214-.5707-.1215-.5343-.7042.0546-.3522.4797-.3218.686.0608 1.5179.1032 2.2767.1578 1.6514.0972 2.4468.255h.3886l.0546-.1579-.1336-.0971-.1032-.0972L6.973 9.8356l-2.55-1.6879-1.3356-.9714-.7225-.4918-.3643-.4614-.1578-1.0078.6557-.7225.8803.0607.2246.0607.8925.686 1.9064 1.4754 2.4893 1.8336.3643.3035.1457-.1032.0182-.0728-.164-.2733-1.3539-2.4467-1.445-2.4893-.6435-1.032-.17-.6194c-.0607-.255-.1032-.4674-.1032-.7285L6.287.1335 6.6997 0l.9957.1336.419.3642.6192 1.4147 1.0018 2.2282 1.5543 3.0296.4553.8985.2429.8318.091.255h.1579v-.1457l.1275-1.706.2368-2.0947.2307-2.6957.0789-.7589.3764-.9107.7468-.4918.5828.2793.4797.686-.0668.4433-.2853 1.8517-.5586 2.9021-.3643 1.9429h.2125l.2429-.2429.9835-1.3053 1.6514-2.0643.7286-.8196.85-.9046.5464-.4311h1.0321l.759 1.1293-.34 1.1657-1.0625 1.3478-.8804 1.1414-1.2628 1.7-.7893 1.36.0729.1093.1882-.0183 2.8535-.607 1.5421-.2794 1.8396-.3157.8318.3886.091.3946-.3278.8075-1.967.4857-2.3072.4614-3.4364.8136-.0425.0304.0486.0607 1.5482.1457.6618.0364h1.621l3.0175.2247.7892.522.4736.6376-.079.4857-1.2142.6193-1.6393-.3886-3.825-.9107-1.3113-.3279h-.1822v.1093l1.0929 1.0686 2.0035 1.8092 2.5075 2.3314.1275.5768-.3218.4554-.34-.0486-2.2039-1.6575-.85-.7468-1.9246-1.621h-.1275v.17l.4432.6496 2.3436 3.5214.1214 1.0807-.17.3521-.6071.2125-.6679-.1214-1.3721-1.9246L14.38 17.959l-1.1414-1.9428-.1397.079-.674 7.2552-.3156.3703-.7286.2793-.6071-.4614-.3218-.7468.3218-1.4753.3886-1.9246.3157-1.53.2853-1.9004.17-.6314-.0121-.0425-.1397.0182-1.4328 1.9672-2.1796 2.9446-1.7243 1.8456-.4128.164-.7164-.3704.0667-.6618.4008-.5889 2.386-3.0357 1.4389-1.882.929-1.0868-.0062-.1579h-.0546l-6.3385 4.1164-1.1293.1457-.4857-.4554.0608-.7467.2307-.2429 1.9064-1.3114Z"/>
</svg>);
}
/* The menu bar's system symbols are Apple's own SF Symbols, switch.2 and
4.calendar, exported from macOS with SwiftUI as vectors (regular weight,
100pt, trimmed to their outlines). The reference photo's Control Center
icon matches them at 14pt regular, so both render at that size. */
function ControlCenterGlyph() {
return (<svg className="tlpg-mba-control" viewBox="0 0 93.09 92.16" aria-hidden="true">
<path fill="currentColor" d="M20.86 92.16L72.19 92.16C83.76 92.16 93.09 84.08 93.09 72.11C93.09 60.15 83.76 52.06 72.19 52.06L20.86 52.06C9.28 52.06 0 60.15 0 72.11C0 84.08 9.28 92.16 20.86 92.16ZM58.03 84.71C50.83 84.71 45.01 79.63 45.01 72.06C45.01 64.55 50.83 59.47 58.03 59.47L72.99 59.47C80.25 59.47 86.02 64.55 86.02 72.11C86.02 79.63 80.25 84.71 72.99 84.71ZM23.02 44.54L70.03 44.54C82.82 44.54 93.09 35.55 93.09 22.27C93.09 8.99 82.82 0 70.03 0L23.02 0C10.29 0 0 8.99 0 22.27C0 35.55 10.29 44.54 23.02 44.54ZM23.02 37.15C14.53 37.15 7.64 31.19 7.64 22.27C7.64 13.36 14.53 7.39 23.02 7.39L70.03 7.39C78.56 7.39 85.41 13.37 85.41 22.27C85.41 31.17 78.56 37.15 70.03 37.15ZM23.02 33.83L37.25 33.83C43.83 33.83 49.19 29.18 49.19 22.27C49.19 15.31 43.83 10.66 37.25 10.66L23.02 10.66C16.43 10.66 11.08 15.31 11.08 22.22C11.08 29.18 16.43 33.83 23.02 33.83Z"/>
</svg>);
}
/* Today's agenda: the calendar symbol showing the day, as calendar apps do
in the macOS menu bar. SF Symbols numbers its calendars 1 to 31; this one
is 4, for November 4. */
function CalendarGlyph() {
return (<svg className="tlpg-mba-calendar" viewBox="0 0 97.31 89.91" aria-hidden="true">
<path fill="currentColor" d="M15.32 89.91L81.99 89.91C92.23 89.91 97.31 84.8 97.31 74.74L97.31 15.16C97.31 5.11 92.23 0 81.99 0L15.32 0C5.14 0 0 5.09 0 15.16L0 74.74C0 84.82 5.14 89.91 15.32 89.91ZM14.62 82.01C10.26 82.01 7.85 79.7 7.85 75.19L7.85 29.19C7.85 24.67 10.26 22.36 14.62 22.36L82.64 22.36C86.95 22.36 89.46 24.67 89.46 29.19L89.46 75.19C89.46 79.7 86.95 82.01 82.64 82.01ZM54.56 73.58C56.66 73.58 57.87 72.24 57.87 69.85L57.87 64.28L61.31 64.28C63.07 64.28 64.3 63.11 64.3 61.39C64.3 59.63 63.12 58.44 61.31 58.44L57.87 58.44L57.87 35.47C57.87 32.68 55.68 30.79 52.54 30.79C49.41 30.79 47.48 31.89 45.74 34.58C41.06 41.59 35.41 49.96 31.7 56.05C30.78 57.51 30.48 58.59 30.48 59.87C30.48 62.56 32.27 64.28 35.1 64.28L51.29 64.28L51.29 69.85C51.29 72.19 52.52 73.58 54.56 73.58ZM51.29 58.44L37.02 58.44L37.02 58.19C40.48 52.29 46.3 43.62 50.99 36.57L51.29 36.57Z"/>
</svg>);
}
function CallGlyph() {
return (<svg className="tlpg-mba-join-icon" viewBox="0 0 16 11" aria-hidden="true">
<rect x="0" y="0" width="11" height="11" rx="2.2" fill="currentColor"/>
<path d="M12.2 4.1 15 1.6c.4-.3 1-.1 1 .4v7c0 .5-.6.7-1 .4l-2.8-2.5Z" fill="currentColor"/>
</svg>);
}
/* The unchecked ring and the checked mark share one box. Ticking fills the
ring from its edge inward, as Reminders does, then draws the tick and
settles with a small pop. */
function TickGlyph() {
return (<span className="tlpg-mba-glyph" aria-hidden="true">
<span className="tlpg-mba-ring"/>
<span className="tlpg-mba-disc"/>
<svg className="tlpg-mba-tickmark" viewBox="0 0 16 16">
<path d="M5.2 8.3 7.2 10.2 10.9 6.1" pathLength="1"/>
</svg>
</span>);
}
/* A count that rolls like SwiftUI's numeric text transition: a lower number
arrives from above, a higher one from below, and both blur in motion. The
leaving number is removed when its animation ends. With reduced motion
the number simply changes. */
function RollingNumber({ value, still }) {
const previousRef = useRef(value);
const keyRef = useRef(0);
const [items, setItems] = useState(() => [{ key: 0, value, state: 'idle', direction: 'up' }]);
useEffect(() => {
if (value === previousRef.current)
return;
const direction = value < previousRef.current ? 'down' : 'up';
previousRef.current = value;
keyRef.current += 1;
const key = keyRef.current;
if (still) {
setItems([{ key, value, state: 'idle', direction }]);
return;
}
setItems(current => [
...current.map(item => ({ ...item, state: 'out', direction })),
{ key, value, state: 'in', direction },
]);
}, [value, still]);
return (<span className="tlpg-mba-count">
{items.map(item => (<span key={item.key} className="tlpg-mba-count-value" data-state={item.state} data-direction={item.direction} aria-hidden={item.state === 'out' || undefined} onAnimationEnd={() => {
if (item.state === 'out')
setItems(current => current.filter(other => other.key !== item.key));
}}>{item.value}</span>))}
</span>);
}
/* "3 events": the number rolls and the plural s folds away at one. */
function Count({ value, noun, still }) {
return (<strong>
<RollingNumber value={value} still={still}/> {noun}<span className="tlpg-mba-plural" data-hidden={value === 1 || undefined} aria-hidden={value === 1 || undefined}>s</span>
</strong>);
}
export function MenuBarAgendaDemo({ compact = false, reducedMotion: reducedMotionOverride = false }) {
const prefersReducedMotion = usePrefersReducedMotion();
const reducedMotion = reducedMotionOverride || prefersReducedMotion;
const sceneRef = useRef(null);
const artboardRef = useRef(null);
const addInputRef = useRef(null);
const newTaskRef = useRef(0);
const cancelDraftRef = useRef(false);
const toggleRef = useRef(null);
const panelRef = useRef(null);
const optionsRef = useRef(null);
const optionsButtonRef = useRef(null);
const menuRef = useRef(null);
const [scale, setScale] = useState(1);
const [open, setOpen] = useState(true);
const [optionsOpen, setOptionsOpen] = useState(false);
const [showCompleted, setShowCompleted] = useState(true);
// Events and tasks share one set of ticked ids.
const [done, setDone] = useState(() => new Set());
const [joinedId, setJoinedId] = useState(null);
const [tasks, setTasks] = useState(TASKS);
const [adding, setAdding] = useState(false);
const [draft, setDraft] = useState('');
const pointerTypeRef = useRef('mouse');
const originRef = useRef(null);
const tomorrowSummaryRef = useRef(null);
// Task rows by id. A row that moves between days remounts in the other
// list, so the drag always looks its row up here.
const rowRefs = useRef(new Map());
const tasksRef = useRef(TASKS);
const dragRef = useRef(null);
const pressCleanupRef = useRef(null);
const suppressClickRef = useRef(false);
const flipRef = useRef(null);
const focusAfterMoveRef = useRef(null);
const [drag, setDrag] = useState(null);
const [announcement, setAnnouncement] = useState('');
// The thumbnail's demonstration pointer and the control it is over.
const [previewPointer, setPreviewPointer] = useState({ ...POINTER_REST, opacity: 0, pressed: false });
const [previewTarget, setPreviewTarget] = useState(null);
const interactive = !compact;
const uid = useId();
const panelId = `${uid}panel`;
const menuId = `${uid}menu`;
useLayoutEffect(() => {
const scene = sceneRef.current;
const artboard = artboardRef.current;
if (!scene || !artboard)
return;
const measure = () => {
// Hold the scale still while a task is dragged under the pointer.
if (dragRef.current)
return;
// Layout sizes, not visual boxes: thumbnails scale the frame down,
// and the artboard's height follows its rows.
const width = scene.clientWidth;
const height = scene.clientHeight;
if (width > 0 && height > 0)
setScale(Math.max(0.1, fitScale(width, height, artboard.offsetHeight)));
};
measure();
if (typeof ResizeObserver === 'undefined')
return;
const observer = new ResizeObserver(measure);
observer.observe(scene);
observer.observe(artboard);
return () => observer.disconnect();
}, []);
// Closing the panel also closes its options menu.
useEffect(() => {
if (!open)
setOptionsOpen(false);
}, [open]);
useEffect(() => {
if (!open || !interactive)
return;
// Like a macOS menu: Escape or a click elsewhere closes the innermost
// open layer, the options menu first and then the panel.
const onKeyDown = (event) => {
// The new-task field handles its own Escape: it cancels the task.
if (event.key !== 'Escape' || event.target.closest?.('.tlpg-mba-add-input'))
return;
// Escape during a drag puts the task back where it started.
if (dragRef.current) {
pressCleanupRef.current?.();
dragEnd(true);
return;
}
if (optionsOpen) {
setOptionsOpen(false);
optionsButtonRef.current?.focus();
return;
}
setOpen(false);
toggleRef.current?.focus();
};
const onPointerDown = (event) => {
if (!optionsRef.current?.contains(event.target))
setOptionsOpen(false);
if (panelRef.current?.contains(event.target) || toggleRef.current?.contains(event.target))
return;
setOpen(false);
};
const scene = sceneRef.current;
scene?.addEventListener('keydown', onKeyDown);
scene?.addEventListener('pointerdown', onPointerDown);
return () => {
scene?.removeEventListener('keydown', onKeyDown);
scene?.removeEventListener('pointerdown', onPointerDown);
};
}, [open, interactive, optionsOpen]);
useEffect(() => {
if (adding)
addInputRef.current?.focus({ preventScroll: true });
}, [adding]);
// The collection thumbnail plays one short afternoon on a loop while it is
// on screen: tick a meeting, drag a task from tomorrow to today, join a
// call, then close and reopen the panel. The day resets while the panel is closed, so the loop never
// visibly snaps back. Reduced motion keeps the still agenda.
useEffect(() => {
if (!compact)
return;
const scene = sceneRef.current;
if (!scene)
return;
let visible = false;
let running = false;
let timers = [];
let frame = 0;
const resetDay = () => {
setDone(new Set());
setJoinedId(null);
setTasks(TASKS);
};
const resetPreview = () => {
if (dragRef.current) {
rowRefs.current.get(dragRef.current.id)?.style.removeProperty('translate');
dragRef.current = null;
}
setDrag(null);
setOpen(true);
resetDay();
setPreviewTarget(null);
setPreviewPointer({ ...POINTER_REST, opacity: 0, pressed: false });
};
const stopPreview = () => {
timers.forEach(clearTimeout);
timers = [];
cancelAnimationFrame(frame);
running = false;
};
resetPreview();
if (reducedMotion)
return;
// Targets are measured through both scale layers: the artboard's own
// fit and the thumbnail's.
const pointAt = (selector) => {
const origin = originRef.current;
const element = scene.querySelector(selector);
if (!origin || !element)
return;
const bounds = origin.getBoundingClientRect();
const target = element.getBoundingClientRect();
const ratio = bounds.width / origin.offsetWidth;
if (!ratio)
return;
setPreviewPointer(current => ({ ...current,
x: (target.left + target.width / 2 - bounds.left) / ratio,
y: (target.top + target.height / 2 - bounds.top) / ratio,
}));
};
const press = (pressed) => setPreviewPointer(current => ({ ...current, pressed }));
const tick = (id) => setDone(previous => new Set(previous).add(id));
// Picks Polish up by its ring and carries it, pointer and all, to the
// first slot under the events.
const dragToToday = (id, duration) => {
const row = rowRefs.current.get(id);
const panel = panelRef.current;
const lastEvent = scene.querySelector('.tlpg-mba-events > li:last-child');
const glyph = row?.querySelector('.tlpg-mba-glyph');
if (!row || !panel || !lastEvent || !glyph)
return;
const bounds = glyph.getBoundingClientRect();
const from = panelY(bounds.top + bounds.height / 2);
dragStart(id, from);
const to = lastEvent.offsetTop + lastEvent.offsetHeight + 8.1 + (from - row.offsetTop);
const began = performance.now();
setPreviewPointer(current => ({ ...current, tracking: true }));
const step = (now) => {
const progress = Math.min(1, (now - began) / duration);
const eased = progress < 0.5 ? 4 * progress ** 3 : 1 - (-2 * progress + 2) ** 3 / 2;
const y = from + (to - from) * eased;
setPreviewPointer(current => ({ ...current, y: panel.offsetTop + y }));
dragMove(y);
if (progress < 1)
frame = requestAnimationFrame(step);
};
frame = requestAnimationFrame(step);
};
const playCycle = () => {
timers = [];
const at = (delay, update) => timers.push(setTimeout(update, delay));
at(500, () => setPreviewPointer(current => ({ ...current, opacity: 1 })));
at(700, () => pointAt('[data-preview-id="critique"] .tlpg-mba-glyph'));
at(1400, () => setPreviewTarget('critique'));
at(1600, () => press(true));
at(1690, () => { press(false); tick('critique'); });
at(2300, () => { setPreviewTarget(null); pointAt('[data-preview-id="polish"] .tlpg-mba-glyph'); });
at(3000, () => setPreviewTarget('polish'));
at(3200, () => { press(true); setPreviewTarget(null); dragToToday('polish', 1000); });
at(4350, () => { press(false); dragEnd(); setPreviewPointer(current => ({ ...current, tracking: false })); });
at(4900, () => pointAt('[data-preview-id="join-prototype"]'));
at(5600, () => setPreviewTarget('join-prototype'));
at(5800, () => press(true));
at(5890, () => { press(false); setJoinedId('prototype'); });
at(6600, () => { setPreviewTarget(null); pointAt('.tlpg-mba-toggle'); });
// Like the real status item, the panel answers the press.
at(7500, () => { press(true); setOpen(false); });
at(7590, () => press(false));
at(8100, resetDay);
at(8700, () => { press(true); setOpen(true); });
at(8790, () => press(false));
at(9300, () => setPreviewPointer(current => ({ ...current, ...POINTER_REST })));
at(10000, () => setPreviewPointer(current => ({ ...current, opacity: 0 })));
at(11200, playCycle);
};
const updatePlayback = () => {
if (visible && !document.hidden) {
if (!running) {
running = true;
playCycle();
}
}
else {
stopPreview();
resetPreview();
}
};
const observer = new IntersectionObserver(([entry]) => {
visible = entry.isIntersecting && entry.intersectionRatio >= 0.35;
updatePlayback();
}, { threshold: 0.35 });
observer.observe(scene);
document.addEventListener('visibilitychange', updatePlayback);
return () => {
stopPreview();
observer.disconnect();
document.removeEventListener('visibilitychange', updatePlayback);
};
}, [compact, reducedMotion]);
// The first item takes focus when the menu opens, as in a native menu.
useEffect(() => {
if (optionsOpen)
menuRef.current?.querySelector('[role^="menuitem"]')?.focus({ preventScroll: true });
}, [optionsOpen]);
tasksRef.current = tasks;
/* Positions in the panel's own pixels, whatever the artboard's scale. */
const panelRatio = () => {
const panel = panelRef.current;
return panel ? (panel.getBoundingClientRect().width / panel.offsetWidth) || 1 : 1;
};
const panelY = (clientY) => (clientY - (panelRef.current?.getBoundingClientRect().top ?? 0)) / panelRatio();
const visualTops = () => {
const tops = new Map();
panelRef.current?.querySelectorAll('[data-flip]').forEach(element => tops.set(element.dataset.flip, panelY(element.getBoundingClientRect().top)));
return tops;
};
const moveTask = (id, day, index) => {
flipRef.current = visualTops();
setTasks(previous => placeTask(previous, id, day, index));
};
// The dragged row stays in its own list, folded to no height, and moves
// over the others; a gap opens where it will land. It only changes lists
// on release, so its element (and a finger's touch) survives the drag.
const placeDragged = () => {
const current = dragRef.current;
const row = current && rowRefs.current.get(current.id);
if (row)
row.style.translate = `0 ${current.pointerY - current.grab - row.offsetTop}px`;
};
// When rows change places, those that shifted glide from where they were
// (FLIP), and the dragged row stays under the pointer.
useLayoutEffect(() => {
placeDragged();
if (focusAfterMoveRef.current) {
rowRefs.current.get(focusAfterMoveRef.current)?.querySelector('button')?.focus({ preventScroll: true });
focusAfterMoveRef.current = null;
}
const before = flipRef.current;
flipRef.current = null;
if (!before || reducedMotion)
return;
panelRef.current?.querySelectorAll('[data-flip]').forEach(element => {
const key = element.dataset.flip;
if (key === drag?.id || !before.has(key))
return;
element.getAnimations?.().forEach(animation => {
if (animation.id === 'tlpg-mba-flip')
animation.cancel();
});
const delta = before.get(key) - panelY(element.getBoundingClientRect().top);
if (Math.abs(delta) < 0.5)
return;
const animation = element.animate([{ transform: `translateY(${delta}px)` }, { transform: 'none' }], { duration: 280, easing: 'cubic-bezier(0.2, 0.8, 0.2, 1)' });
animation.id = 'tlpg-mba-flip';
});
}, [tasks, drag]);
const dragStart = (id, pointerY) => {
const row = rowRefs.current.get(id);
const list = tasksRef.current;
const task = list.find(item => item.id === id);
if (!row || !task)
return;
const index = list.slice(0, list.indexOf(task)).filter(item => item.day === task.day).length;
dragRef.current = { id, pointerY, grab: pointerY - row.offsetTop, height: row.offsetHeight, day: task.day, index, fromDay: task.day, fromIndex: index };
setDrag({ id, phase: 'lifted', day: task.day, index });
};
// The row's centre picks the day (above or below tomorrow's heading) and
// the slot among that day's rows; crossing a neighbour's middle swaps them.
const dragMove = (pointerY) => {
const current = dragRef.current;
const heading = tomorrowSummaryRef.current;
if (!current || !heading)
return;
current.pointerY = pointerY;
placeDragged();
const centre = pointerY - current.grab + current.height / 2;
const day = centre < heading.offsetTop + heading.offsetHeight / 2 ? 'today' : 'tomorrow';
let index = 0;
for (const item of tasksRef.current) {
const other = item.day === day && item.id !== current.id && rowRefs.current.get(item.id);
if (other && other.offsetTop + other.offsetHeight / 2 < centre)
index += 1;
}
if (day === current.day && index === current.index)
return;
flipRef.current = visualTops();
current.day = day;
current.index = index;
setDrag({ id: current.id, phase: 'lifted', day, index });
};
const dragEnd = (cancel = false) => {
const current = dragRef.current;
if (!current)
return;
dragRef.current = null;
const day = cancel ? current.fromDay : current.day;
const index = cancel ? current.fromIndex : current.index;
if (day !== current.fromDay || index !== current.fromIndex)
setTasks(previous => placeTask(previous, current.id, day, index));
if (day !== current.fromDay) {
const task = tasksRef.current.find(item => item.id === current.id);
setAnnouncement(`${task?.title} moved to ${day}`);
}
setDrag({ id: current.id, phase: 'settling', from: current.pointerY - current.grab });
};
// On release the row glides from under the pointer into its slot, then
// drops its lift.
useLayoutEffect(() => {
if (drag?.phase !== 'settling')
return;
const row = rowRefs.current.get(drag.id);
if (row) {
row.style.transition = 'none';
row.style.translate = `0 ${drag.from - row.offsetTop}px`;
void row.offsetHeight;
row.style.removeProperty('transition');
row.style.removeProperty('translate');
}
const timer = setTimeout(() => setDrag(current => (current === drag ? null : current)), reducedMotion ? 0 : 300);
return () => clearTimeout(timer);
}, [drag, reducedMotion]);
useEffect(() => () => pressCleanupRef.current?.(), []);
// Once a touch drag has started, the page must not scroll under it.
useEffect(() => {
const scene = sceneRef.current;
const block = (event) => {
if (dragRef.current)
event.preventDefault();
};
scene?.addEventListener('touchmove', block, { passive: false });
return () => scene?.removeEventListener('touchmove', block);
}, []);
const pressTask = (event, id) => {
suppressClickRef.current = false;
if (event.button !== 0 || !interactive || dragRef.current)
return;
const { pointerId, pointerType, clientX: startX, clientY: startY } = event;
let lastY = startY;
let started = false;
let hold = 0;
const start = () => {
started = true;
suppressClickRef.current = true;
dragStart(id, panelY(startY));
dragMove(panelY(lastY));
};
const cleanup = () => {
clearTimeout(hold);
window.removeEventListener('pointermove', onMove);
window.removeEventListener('pointerup', onUp);
window.removeEventListener('pointercancel', onUp);
pressCleanupRef.current = null;
};
const onMove = (move) => {
if (move.pointerId !== pointerId)
return;
lastY = move.clientY;
if (!started) {
const travel = Math.hypot(move.clientX - startX, move.clientY - startY);
if (pointerType === 'touch') {
if (travel > 8)
cleanup();
return;
}
if (travel < DRAG_THRESHOLD)
return;
start();
return;
}
dragMove(panelY(move.clientY));
};
const onUp = (up) => {
if (up.pointerId !== pointerId)
return;
cleanup();
if (started)
dragEnd();
};
if (pointerType === 'touch')
hold = setTimeout(start, TOUCH_HOLD);
window.addEventListener('pointermove', onMove);
window.addEventListener('pointerup', onUp);
window.addEventListener('pointercancel', onUp);
pressCleanupRef.current = cleanup;
};
// Alt with an arrow key moves the focused task one slot, across days too.
const stepTask = (id, direction) => {
const list = tasksRef.current;
const task = list.find(item => item.id === id);
const sameDay = list.filter(item => item.day === task.day);
const position = sameDay.indexOf(task);
let day = task.day;
let index = position + direction;
if (direction > 0 && position === sameDay.length - 1) {
if (day === 'tomorrow')
return;
day = 'tomorrow';
index = 0;
}
else if (direction < 0 && position === 0) {
if (day === 'today')
return;
day = 'today';
index = list.filter(item => item.day === 'today').length;
}
focusAfterMoveRef.current = id;
moveTask(id, day, index);
const count = list.filter(item => item.day === day && item.id !== id).length + 1;
setAnnouncement(`${task.title}, ${day}, ${index + 1} of ${count}`);
};
const toggleDone = (id) => {
setDone(previous => {
const next = new Set(previous);
if (next.has(id))
next.delete(id);
else
next.add(id);
return next;
});
// A ticked meeting is over, so leave it.
if (joinedId === id)
setJoinedId(null);
};
const handleMenuKey = (event) => {
const items = Array.from(menuRef.current?.querySelectorAll('[role^="menuitem"]') ?? []);
const index = items.indexOf(document.activeElement);
if (event.key === 'ArrowDown' || event.key === 'ArrowUp' || event.key === 'Home' || event.key === 'End') {
event.preventDefault();
const next = event.key === 'Home' ? 0
: event.key === 'End' ? items.length - 1
: (index + (event.key === 'ArrowDown' ? 1 : -1) + items.length) % items.length;
items[next]?.focus();
}
else if (event.key === 'Tab') {
setOptionsOpen(false);
}
};
// Like Reminders: Enter adds the task and keeps the field open for the
// next one; leaving the field adds what was typed.
const commitDraft = () => {
const title = draft.trim();
if (title && tasks.length < MAX_TASKS) {
newTaskRef.current += 1;
setTasks(previous => [...previous, { id: `new-${newTaskRef.current}`, title, day: 'tomorrow', fresh: true }]);
}
setDraft('');
};
const chooseOption = (action) => {
action();
setOptionsOpen(false);
optionsButtonRef.current?.focus({ preventScroll: true });
};
const hidden = (item) => !showCompleted && done.has(item.id);
const eventsLeft = EVENTS.filter(event => !done.has(event.id)).length;
const todayTasks = tasks.filter(task => task.day === 'today');
const tomorrowTasks = tasks.filter(task => task.day === 'tomorrow');
const todayLeft = todayTasks.filter(task => !done.has(task.id)).length;
const tomorrowLeft = tomorrowTasks.filter(task => !done.has(task.id)).length;
// A day's rows, with the landing gap where a dragged task would drop.
const renderDay = (rows, day) => {
const items = rows.map(renderTask);
if (drag?.phase === 'lifted' && drag.day === day) {
const next = rows.filter(task => task.id !== drag.id)[drag.index];
items.splice(next ? rows.indexOf(next) : rows.length, 0, <li key="gap" className="tlpg-mba-gap" data-flip="gap" aria-hidden="true"/>);
}
return items;
};
const renderTask = (task) => {
const checked = done.has(task.id);
const target = previewTarget === task.id;
return (<li key={task.id} ref={(row) => {
if (row)
rowRefs.current.set(task.id, row);
else if (rowRefs.current.get(task.id)?.isConnected === false)
rowRefs.current.delete(task.id);
}} data-flip={task.id} data-hidden={hidden(task) || undefined} data-fresh={task.fresh || undefined} data-drag={drag?.id === task.id ? drag.phase : undefined}>
<button type="button" role="checkbox" aria-checked={checked} aria-keyshortcuts="Alt+ArrowUp Alt+ArrowDown" className="tlpg-mba-row tlpg-mba-tick tlpg-mba-task" data-preview-id={task.id} data-preview-hover={target || undefined} data-preview-pressed={(target && previewPointer.pressed) || undefined} onPointerDown={(event) => pressTask(event, task.id)} onKeyDown={(event) => {
if (event.altKey && (event.key === 'ArrowUp' || event.key === 'ArrowDown')) {
event.preventDefault();
stepTask(task.id, event.key === 'ArrowUp' ? -1 : 1);
}
}} onClick={() => {
// The release that ends a drag is not a tick.
if (suppressClickRef.current) {
suppressClickRef.current = false;
return;
}
toggleDone(task.id);
}}>
<TickGlyph/>
<span>{task.title}</span>
</button>
</li>);
};
return (<div ref={sceneRef} className={`tlpg-mba-scene${reducedMotion ? ' tlpg-mba-reduced-motion' : ''}`} data-dragging={drag?.phase === 'lifted' || undefined} inert={compact || undefined}>
<div ref={artboardRef} className="tlpg-mba-artboard" style={{ scale: String(scale) }}>
<div ref={originRef} className="tlpg-mba-origin">
<div className="tlpg-mba-menubar" role="group" aria-label="Menu bar">
<ClaudeGlyph />
{/* Like a macOS status item, a mouse opens and closes the panel on
press, not on release. Touch and keyboard use the click. */}
<button ref={toggleRef} type="button" className="tlpg-mba-toggle" aria-label="Today" aria-expanded={open} aria-controls={panelId} tabIndex={interactive ? undefined : -1} onPointerDown={(event) => {
pointerTypeRef.current = event.pointerType;
if (event.pointerType === 'mouse' && event.button === 0)
setOpen(value => !value);
}} onClick={(event) => {
if (event.detail === 0 || pointerTypeRef.current !== 'mouse')
setOpen(value => !value);
}}>
<CalendarGlyph />
</button>
<ControlCenterGlyph />
<span className="tlpg-mba-clock">12:20</span>
</div>
<section ref={panelRef} id={panelId} className="tlpg-mba-panel" data-open={open} aria-label="Today" aria-hidden={!open || undefined} inert={!open || undefined}>
<header className="tlpg-mba-head">
<p><strong>{DAY.weekday}</strong> {DAY.date}</p>
<div ref={optionsRef} className="tlpg-mba-options">
<button ref={optionsButtonRef} type="button" className="tlpg-mba-more" aria-label="Agenda options" aria-haspopup="menu" aria-expanded={optionsOpen} aria-controls={menuId} onClick={() => setOptionsOpen(value => !value)} onKeyDown={(event) => {
if (event.key === 'ArrowDown' || event.key === 'ArrowUp') {
event.preventDefault();
setOptionsOpen(true);
}
}}>
<DotsThree weight="bold" aria-hidden="true"/>
</button>
<div ref={menuRef} id={menuId} className="tlpg-mba-menu" data-open={optionsOpen} role="menu" aria-label="Agenda options" aria-hidden={!optionsOpen || undefined} inert={!optionsOpen || undefined} onKeyDown={handleMenuKey}>
<button type="button" role="menuitemcheckbox" aria-checked={showCompleted} tabIndex={-1} className="tlpg-mba-menu-item" onClick={() => chooseOption(() => setShowCompleted(value => !value))}>
<span className="tlpg-mba-menu-check" aria-hidden="true">
<svg width="16" height="16" viewBox="0 0 16 16" fill="none">
<path d="m2.8 8 3.3 3.2 7.1-7" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"/>
</svg>
</span>
<span>Show completed</span>
</button>
<button type="button" role="menuitem" tabIndex={-1} className="tlpg-mba-menu-item" onClick={() => chooseOption(() => {
setDone(new Set());
setJoinedId(null);
setTasks(TASKS);
})}>
<span className="tlpg-mba-menu-check" aria-hidden="true"/>
<span>Reset today</span>
</button>
</div>
</div>
</header>
<p className="tlpg-mba-summary">You have <Count value={eventsLeft} noun="event" still={reducedMotion}/><span className="tlpg-mba-clause" data-hidden={todayLeft === 0 || undefined} aria-hidden={todayLeft === 0 || undefined}>{'\u00a0'}and <Count value={Math.max(todayLeft, 1)} noun="task" still={reducedMotion}/></span> remaining today</p>
<ul className="tlpg-mba-list tlpg-mba-events">
{EVENTS.map(event => {
const checked = done.has(event.id);
const joined = joinedId === event.id;
return (<li key={event.id} data-done={checked || undefined} data-joined={joined || undefined} data-hidden={hidden(event) || undefined}>
<button type="button" role="checkbox" aria-checked={checked} className="tlpg-mba-row tlpg-mba-tick" data-preview-id={event.id} data-preview-hover={previewTarget === event.id || undefined} data-preview-pressed={(previewTarget === event.id && previewPointer.pressed) || undefined} onClick={() => toggleDone(event.id)}>
<TickGlyph/>
<span>{event.title} at <strong>{event.time}</strong></span>
</button>
{/* Join sits beside the time, always visible (Julio's pick on
4 Nov 2026 over a hover-only button, a card for the next
meeting and a second line). It carries the camera, so
the row's mark is a plain ring like any other. A ticked
meeting keeps its button, dimmed with its text, so it
can still be joined. */}
{event.kind === 'call' && (<button type="button" className="tlpg-mba-join" data-preview-id={`join-${event.id}`} data-preview-hover={previewTarget === `join-${event.id}` || undefined} data-preview-pressed={(previewTarget === `join-${event.id}` && previewPointer.pressed) || undefined} aria-label={`${joined ? 'Leave' : 'Join'} ${event.title}`} onClick={() => setJoinedId(joined ? null : event.id)}>
<CallGlyph/>
<span>{joined ? 'Leave' : 'Join'}</span>
</button>)}
</li>);
})}
</ul>
{/* Today's tasks follow the events. The list stays mounted when
empty, so a task can always be dropped into it. */}
<ul className="tlpg-mba-list tlpg-mba-tasks tlpg-mba-today" aria-label="Today's tasks">
{renderDay(todayTasks, 'today')}
</ul>
<p ref={tomorrowSummaryRef} className="tlpg-mba-summary" data-flip="tomorrow-summary">You have <Count value={tomorrowLeft} noun="task" still={reducedMotion}/> tomorrow</p>
<ul className="tlpg-mba-list tlpg-mba-tasks" aria-label="Tomorrow's tasks">
{renderDay(tomorrowTasks, 'tomorrow')}
{tasks.length < MAX_TASKS && (<li className="tlpg-mba-add-row" data-flip="add">
{adding ? (<label className="tlpg-mba-row tlpg-mba-task tlpg-mba-add">
<span className="tlpg-mba-glyph" aria-hidden="true"><span className="tlpg-mba-ring"/></span>
<input ref={addInputRef} className="tlpg-mba-add-input" value={draft} placeholder="New task" aria-label="New task" maxLength={44} enterKeyHint="done" onChange={(change) => setDraft(change.target.value)} onKeyDown={(key) => {
if (key.key === 'Enter') {
key.preventDefault();
commitDraft();
}
else if (key.key === 'Escape') {
key.preventDefault();
cancelDraftRef.current = true;
setDraft('');
setAdding(false);
}
}} onBlur={() => {
// Escape may blur the field as it unmounts; that cancels.
if (!cancelDraftRef.current)
commitDraft();
cancelDraftRef.current = false;
setAdding(false);
}}/>
</label>) : (<button type="button" className="tlpg-mba-row tlpg-mba-task tlpg-mba-add" onClick={() => setAdding(true)}>
<span className="tlpg-mba-glyph" aria-hidden="true"><Plus weight="bold" className="tlpg-mba-plus"/></span>
<span>Add task</span>
</button>)}
</li>)}
</ul>
<p className="tlpg-mba-sr-only" aria-live="polite">{announcement}</p>
</section>
{/* A decorative pointer for the collection thumbnail only; the
real agenda stays fully interactive. */}
{compact && !reducedMotion && (<span className="tlpg-mba-pointer" aria-hidden="true" data-pressed={previewPointer.pressed || undefined} data-tracking={previewPointer.tracking || undefined} style={{ opacity: previewPointer.opacity, translate: `${previewPointer.x}px ${previewPointer.y}px` }}>
<svg viewBox="0 0 24 28" fill="#202020" stroke="#fafafa" strokeWidth="1.4" strokeLinejoin="round"><path d="M2 2v20l5.5-5 4.4 9 4-2-4.4-8.5H20Z"/></svg>
</span>)}
</div>
</div>
</div>);
}
