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|
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Dupre Studios Music Config UI Remodel</title>
<style>
:root {
--black: #050605;
--glass: #090a09;
--soft-white: #e9e2d3;
--dim-white: #a9a59c;
--amber: #f2a900;
--amber-hot: #ffc34f;
--green: #9dda59;
--red: #a73a29;
--brass: #c9a574;
--coffee: #b69c7d;
--ink: #201810;
--mono: "Berkeley Mono", "BerkeleyMono Nerd Font", ui-monospace, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; }
body {
margin: 0;
color: var(--soft-white);
background:
radial-gradient(circle at 50% -20%, #2c261e 0, transparent 42%),
linear-gradient(#0e0e0d, #050505 70%);
font-family: var(--mono);
}
button, input { font: inherit; }
.workbench {
width: min(100%, 1960px);
margin: 0 auto;
padding: 16px 20px 28px;
}
.prototype-bar {
min-height: 48px;
display: flex;
align-items: center;
justify-content: space-between;
gap: 18px;
margin-bottom: 12px;
color: #bbb3a3;
font-size: 12px;
letter-spacing: .04em;
}
.prototype-bar h1 {
margin: 0 0 3px;
color: #e8d6b7;
font-size: 14px;
font-weight: 500;
letter-spacing: .13em;
text-transform: uppercase;
}
.prototype-bar p { margin: 0; }
.fixture-switch, .bench-controls {
display: flex;
align-items: center;
gap: 7px;
flex-wrap: wrap;
justify-content: flex-end;
}
.lab-button {
min-height: 31px;
padding: 5px 10px;
color: #bbb3a3;
border: 1px solid #554b3e;
border-radius: 3px;
background: linear-gradient(#26231f, #141311);
cursor: pointer;
}
.lab-button:hover, .lab-button[aria-pressed="true"] {
color: #17130e;
border-color: #b89765;
background: linear-gradient(#e0c292, #a98857);
}
.bench-readout {
min-width: 242px;
color: #9b9487;
font-variant-numeric: tabular-nums;
text-align: right;
}
.receiver-wrap {
width: 100%;
overflow: hidden;
border-radius: 0 0 12px 12px;
box-shadow: 0 28px 60px #000c;
}
.receiver {
position: relative;
width: 100%;
aspect-ratio: 1916 / 821;
overflow: hidden;
background: #060606 url("../concepts/30a-dupre-studios-user-refined-playlist.png") center / 100% 100% no-repeat;
user-select: none;
touch-action: none;
}
.dynamic-svg, .hit-layer {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
}
.dynamic-svg { pointer-events: none; }
.upper-live {
position: absolute;
left: 31.55%;
top: 11.6%;
width: 27.9%;
height: 31.4%;
overflow: hidden;
background:
radial-gradient(ellipse at 36% 10%, #25242140, transparent 46%),
linear-gradient(100deg, #090a09 0, #060706 72%, #080908 100%);
box-shadow: inset 0 0 34px #000;
}
.art {
position: absolute;
left: 1.4%;
top: 1.5%;
width: 28%;
height: 69%;
overflow: hidden;
border: 1px solid #292724;
border-radius: 2px;
background: #171716;
box-shadow: 0 5px 15px #000b;
}
.art img {
width: 100%;
height: 100%;
object-fit: cover;
display: block;
}
.album-crop {
width: 100%;
height: 100%;
background-image: url("../concepts/30a-dupre-studios-user-refined-playlist.png");
background-size: 1312.33% 475.2%;
background-position: 34.42% 20.9%;
}
.metadata {
position: absolute;
left: 33.1%;
right: 1.5%;
top: 0;
height: 72%;
display: grid;
align-content: start;
gap: 4.6%;
padding-top: 1.2%;
color: var(--soft-white);
font-size: clamp(7px, 1.04vw, 20px);
line-height: 1.07;
letter-spacing: .08em;
text-shadow: 0 0 6px #fff2;
text-transform: uppercase;
}
.metadata-line {
min-width: 0;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
.metadata-line.dim { color: #d5cfc2; }
.on-air-under-art {
position: absolute;
left: 1.6%;
top: 73.5%;
width: 27.5%;
color: #e9543f;
font-size: clamp(8px, 1vw, 18px);
letter-spacing: .18em;
text-align: center;
text-shadow: 0 0 9px #e9543f99;
}
.seek-line {
position: absolute;
left: 1.4%;
right: 1.5%;
bottom: 2.5%;
height: 20%;
display: grid;
grid-template-columns: 12% 1fr 12%;
align-items: center;
gap: 3%;
color: #d2cabd;
font-size: clamp(8px, .94vw, 18px);
font-variant-numeric: tabular-nums;
}
.seek-time:last-child { text-align: right; }
.seek-track {
position: relative;
height: 12px;
cursor: ew-resize;
}
.seek-track::before {
content: "";
position: absolute;
left: 0;
right: 0;
top: 5px;
height: 2px;
background: #373735;
box-shadow: inset 0 1px #000;
}
.seek-fill {
position: absolute;
left: 0;
top: 5px;
width: calc(var(--progress) * 1%);
height: 2px;
background: var(--amber);
box-shadow: 0 0 4px #f2a90088;
}
.seek-thumb {
position: absolute;
top: 50%;
left: calc(var(--progress) * 1%);
width: 12px;
height: 21px;
border: 1px solid #ead0a4;
border-radius: 3px;
background: linear-gradient(90deg, #6f4c2d, #caa16a 22%, #f0d3a0 48%, #ad7f4a 74%, #654429);
box-shadow: 0 2px 4px #000d, inset 0 1px #fff4, inset 0 -1px #50351f;
transform: translate(-50%, -50%);
}
.seek-thumb::after {
content: "";
position: absolute;
left: 50%;
top: 3px;
bottom: 3px;
width: 1px;
background: #5f4026aa;
box-shadow: 1px 0 #f2d7aa66;
}
.playlist-header {
position: absolute;
left: 61.16%;
top: 6.35%;
width: 36%;
height: 7.8%;
display: grid;
grid-template-columns: minmax(0, 1fr) auto;
align-items: center;
gap: 2.4%;
padding: 0 2.1%;
overflow: hidden;
color: #1f1811;
background:
radial-gradient(ellipse 10% 100% at 5% -3%, #fff1d7 0, #eac184aa 35%, transparent 76%),
radial-gradient(ellipse 10% 100% at 35% -3%, #fff1d7 0, #eac184aa 35%, transparent 76%),
radial-gradient(ellipse 10% 100% at 65% -3%, #fff1d7 0, #eac184aa 35%, transparent 76%),
radial-gradient(ellipse 10% 100% at 95% -3%, #fff1d7 0, #eac184aa 35%, transparent 76%),
linear-gradient(90deg, #d5b78c22, transparent 25% 75%, #5c3c2233),
linear-gradient(180deg, #92795e, #877057);
box-shadow:
inset 0 1px #f7dfb6,
inset 0 5px 14px #fff2,
inset 0 -8px 15px #5a3d2433,
inset 0 0 0 1px #73583b66;
font-size: clamp(8px, 1.04vw, 20px);
letter-spacing: .075em;
text-transform: uppercase;
}
.header-name {
min-width: 0;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
.playlist-live {
position: absolute;
left: 61.05%;
top: 14.25%;
width: 36.12%;
height: 66.15%;
overflow: hidden;
background:
radial-gradient(ellipse at 48% 0, #20211e22, transparent 55%),
linear-gradient(90deg, #070807, #090a09 65%, #050605);
box-shadow: inset 0 0 26px #000;
}
.playlist-scroll {
position: absolute;
inset: 0 22px 0 0;
overflow-y: scroll;
scrollbar-width: none;
overscroll-behavior: contain;
}
.playlist-scroll::-webkit-scrollbar { display: none; }
.playlist-rows { min-height: 100%; }
.playlist-row {
height: var(--row-height, 37px);
min-height: var(--row-height, 37px);
display: grid;
grid-template-columns: 7.5% minmax(0, 1fr) 12%;
align-items: center;
gap: 1.5%;
padding: 0 1.2% 0 2.6%;
color: #dad6cd;
border-bottom: 1px solid #ffffff06;
font-size: clamp(7px, .91vw, 17px);
letter-spacing: .045em;
text-transform: uppercase;
cursor: pointer;
}
.playlist-row:hover { background: #f2a9000b; color: #fffaf0; }
.playlist-row.selected {
color: var(--amber);
background: linear-gradient(90deg, #f2a90012, transparent 72%);
text-shadow: 0 0 7px #f2a90044;
}
.row-number { position: relative; font-variant-numeric: tabular-nums; }
.playlist-row.selected .row-number::before {
content: "▶";
position: absolute;
right: calc(100% + 4px);
font-size: .78em;
}
.row-name {
min-width: 0;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
.row-meta { text-align: right; font-variant-numeric: tabular-nums; }
.scroll-rail {
position: absolute;
top: 1.2%;
right: 5px;
bottom: 1.2%;
width: 9px;
border: 1px solid #554b3d;
border-radius: 5px;
background: #191815;
box-shadow: inset 0 1px 3px #000;
}
.scroll-thumb {
position: absolute;
left: -1px;
top: 0;
width: 9px;
min-height: 38px;
border: 1px solid #aa9574;
border-radius: 5px;
background: linear-gradient(90deg, #7b6a53, #bca887 45%, #76634b);
box-shadow: 0 0 4px #000;
cursor: ns-resize;
}
.empty-row {
height: var(--row-height, 37px);
border-bottom: 1px solid #ffffff05;
}
.transport-bank {
position: absolute;
left: 5.95%;
top: 71.7%;
width: 24.5%;
height: 7.45%;
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 5.4%;
}
.transport-button {
position: relative;
border: 1px solid #1d1b18;
border-radius: 4px;
color: #b6a687;
background:
linear-gradient(180deg, #292927 0 7%, #171716 15% 72%, #090a09 100%);
box-shadow:
inset 0 1px #5b5953,
inset 0 -3px #050505,
0 5px 5px #0009;
font-size: clamp(10px, 1.4vw, 25px);
cursor: pointer;
transform: translateY(0);
}
.transport-button:hover { color: #e9ddc6; filter: brightness(1.12); }
.transport-button:active, .transport-button.pressed {
transform: translateY(3px);
box-shadow: inset 0 2px 4px #000, 0 1px 2px #000b;
}
.transport-button.playing {
color: #bdd27c;
text-shadow: 0 0 2px #a7c26c, 0 0 4px #70883e99;
transform: translateY(3px);
box-shadow: inset 0 2px 5px #000, 0 1px 2px #000b;
}
.mode-button,
.radio-button {
position: absolute;
width: 2.05%;
aspect-ratio: 1;
padding: 0;
border: 1px solid #6e5436;
border-radius: 50%;
color: #2a2118;
background:
radial-gradient(circle at 34% 25%, #fff0c5 0 2.5%, transparent 5%),
repeating-radial-gradient(circle at 50% 50%, #fff3d00b 0 1px, #4b2e160b 1px 2px),
radial-gradient(circle at 46% 42%, #e8cb94 0, #c79a60 52%, #8b6038 82%, #d3aa70 100%);
box-shadow:
0 3px 3px #0009,
inset 0 1px #f2d39e,
0 0 0 3px #342719,
0 0 0 4px #d0ad78;
cursor: pointer;
transform: translateY(0);
}
.mode-button::after {
content: "";
position: absolute;
inset: -4px;
border: 1px solid transparent;
border-radius: 50%;
}
.mode-button[aria-pressed="true"]::after {
border-color: #829b55;
box-shadow: 0 0 2px #819a55aa, inset 0 0 2px #71864988;
}
.mode-button[aria-pressed="true"], .mode-button:active {
transform: translateY(2px);
box-shadow:
0 1px 1px #0009,
inset 0 2px 3px #3c291777,
0 0 0 3px #2c2117,
0 0 0 4px #bb9766;
}
.radio-button {
box-shadow:
0 3px 3px #0009,
inset 0 1px #f2d39e,
0 0 0 3px #342719,
0 0 0 4px #d0ad78;
}
.radio-button:active {
transform: translateY(2px);
box-shadow:
0 1px 1px #0009,
inset 0 2px 3px #3c291777,
0 0 0 3px #2c2117,
0 0 0 4px #bb9766;
}
.mode-repeat { left: 34.68%; top: 52.75%; }
.mode-single { left: 39.18%; top: 52.75%; }
.mode-random { left: 34.68%; top: 61.25%; }
.mode-consume { left: 39.18%; top: 61.25%; }
.radio-name { left: 34.68%; top: 75.65%; }
.radio-tags { left: 39.18%; top: 75.65%; }
.volume-hit {
position: absolute;
left: 43.2%;
top: 49.6%;
width: 14.6%;
height: 34%;
border-radius: 50%;
cursor: grab;
}
.volume-hit:active { cursor: grabbing; }
.playlist-actions {
position: absolute;
left: 61.13%;
top: 81.65%;
width: 35.45%;
height: 7.45%;
display: grid;
grid-template-columns: repeat(5, 1fr);
gap: .65%;
}
.playlist-action {
border: 1px solid #302b23;
border-radius: 2px;
color: #ccc5b8;
background: linear-gradient(#1d1c19, #090a09);
box-shadow: inset 0 1px #555147, 0 3px 5px #0007;
font-size: clamp(8px, 1vw, 19px);
letter-spacing: .05em;
cursor: pointer;
}
.playlist-action[data-action="add"],
.playlist-action[data-action="new"] {
background: linear-gradient(#29271d, #11120d);
}
.playlist-action[data-action="delete"] {
color: #ead3cc;
border-color: #572c24;
background: linear-gradient(#552019, #2e0f0b);
}
.playlist-action:hover { filter: brightness(1.2); }
.playlist-action:active { transform: translateY(2px); box-shadow: inset 0 2px 5px #000; }
.status-toast {
position: absolute;
left: 50%;
bottom: 2.7%;
z-index: 8;
max-width: 52%;
padding: .55% 1%;
color: #d7ccb8;
border: 1px solid #6d5b42;
border-radius: 3px;
background: #090907ed;
box-shadow: 0 5px 14px #000c;
font-size: clamp(7px, .78vw, 15px);
letter-spacing: .04em;
opacity: 0;
pointer-events: none;
transform: translate(-50%, 8px);
transition: opacity .15s, transform .15s;
}
.status-toast.show { opacity: 1; transform: translate(-50%, 0); }
dialog {
width: min(430px, calc(100vw - 40px));
color: #e6dccb;
border: 1px solid #9b7651;
border-radius: 6px;
background: linear-gradient(#1d1b18, #0b0b0a);
box-shadow: 0 24px 70px #000;
font-family: var(--mono);
}
dialog::backdrop { background: #000b; }
dialog h2 { color: #e0be87; font-size: 16px; font-weight: 500; }
dialog p { color: #bdb5a8; font-size: 13px; line-height: 1.45; }
dialog menu { display: flex; justify-content: flex-end; gap: 8px; padding: 0; }
.delete-confirm {
color: #f0dad3;
border-color: #7c3327;
background: #592018;
}
.inspection-note {
margin: 13px 2px 0;
display: flex;
justify-content: space-between;
gap: 18px;
color: #7f796f;
font-size: 11px;
line-height: 1.5;
}
.inspection-note span:last-child { text-align: right; }
@media (max-width: 980px) {
.workbench { padding: 10px 8px 20px; }
.prototype-bar { align-items: flex-start; flex-direction: column; }
.fixture-switch, .bench-controls { justify-content: flex-start; }
.bench-readout { text-align: left; }
}
</style>
</head>
<body>
<main class="workbench">
<header class="prototype-bar">
<div>
<h1>Music Config UI Remodel · Functional Prototype 1</h1>
<p>Drive the receiver. The controls outside it only switch fixtures and run the review benchmark.</p>
</div>
<div class="fixture-switch" aria-label="Prototype fixtures">
<button class="lab-button" id="localFixture" aria-pressed="true">Local playlist</button>
<button class="lab-button" id="radioFixture" aria-pressed="false">Radio station</button>
<button class="lab-button" id="restoreFixture">Restore fixture</button>
</div>
<div class="bench-controls">
<button class="lab-button" id="benchmarkButton">Run 60s benchmark</button>
<span class="bench-readout" id="benchmarkReadout">Dynamic updates: awaiting benchmark</span>
</div>
</header>
<section class="receiver-wrap" aria-label="Dupre Studios receiver prototype">
<div class="receiver" id="receiver">
<div class="upper-live" id="upperLive">
<div class="art" id="art"><div class="album-crop" aria-label="69 Love Songs album art"></div></div>
<div class="metadata" id="metadata"></div>
<div class="on-air-under-art" id="onAirUnderArt" hidden>ON AIR</div>
<div class="seek-line" id="seekLine">
<span class="seek-time" id="elapsed">01:30</span>
<div class="seek-track" id="seekTrack" role="slider" tabindex="0" aria-label="Track position" aria-valuemin="0" aria-valuemax="100" aria-valuenow="50">
<div class="seek-fill"></div>
<div class="seek-thumb"></div>
</div>
<span class="seek-time" id="duration">02:59</span>
</div>
</div>
<div class="playlist-header" id="playlistHeader">
<span class="header-name" id="headerName">69 LOVE SONGS — COMPLETE</span>
<span id="headerCount">69 TRACKS</span>
</div>
<div class="playlist-live">
<div class="playlist-scroll" id="playlistScroll" tabindex="0" aria-label="Playlist rows">
<div class="playlist-rows" id="playlistRows"></div>
</div>
<div class="scroll-rail" id="scrollRail" hidden><div class="scroll-thumb" id="scrollThumb"></div></div>
</div>
<svg class="dynamic-svg" viewBox="0 0 1916 821" aria-hidden="true">
<defs>
<radialGradient id="meterGlow" cx="50%" cy="100%" r="65%">
<stop offset="0" stop-color="#ffc55b" stop-opacity=".75"/>
<stop offset=".32" stop-color="#8c5b16" stop-opacity=".18"/>
<stop offset="1" stop-color="#000" stop-opacity="0"/>
</radialGradient>
<linearGradient id="meterFrame" x1="0" x2="1">
<stop offset="0" stop-color="#5b4325"/>
<stop offset=".18" stop-color="#e2c08a"/>
<stop offset=".5" stop-color="#7c5a32"/>
<stop offset=".82" stop-color="#ddba82"/>
<stop offset="1" stop-color="#4a321c"/>
</linearGradient>
<linearGradient id="faceplateMask" x1="0" y1="0" x2="1" y2="1">
<stop offset="0" stop-color="#c3a477"/>
<stop offset=".52" stop-color="#b9996d"/>
<stop offset="1" stop-color="#c5a77b"/>
</linearGradient>
<linearGradient id="champagneFace" x1="0" y1="0" x2="0" y2="1">
<stop offset="0" stop-color="#c8b89f"/>
<stop offset=".18" stop-color="#b9a489"/>
<stop offset=".56" stop-color="#b19a7c"/>
<stop offset="1" stop-color="#a68e71"/>
</linearGradient>
<linearGradient id="glassLip" x1="0" y1="0" x2="0" y2="1">
<stop offset="0" stop-color="#050606" stop-opacity=".96"/>
<stop offset=".45" stop-color="#111311"/>
<stop offset=".76" stop-color="#030404"/>
<stop offset="1" stop-color="#2a2118"/>
</linearGradient>
<pattern id="microBrush" width="5" height="4" patternUnits="userSpaceOnUse">
<path d="M0 .5 H5" stroke="#fff5df" stroke-opacity=".1" stroke-width=".55"/>
<path d="M0 3.5 H5" stroke="#57452f" stroke-opacity=".08" stroke-width=".45"/>
</pattern>
<clipPath id="volumeKnobClip">
<circle cx="972" cy="551" r="98"/>
</clipPath>
<radialGradient id="volumeLamp" cx="36%" cy="28%" r="70%">
<stop offset="0" stop-color="#fff8d7"/>
<stop offset=".24" stop-color="#ffd27d"/>
<stop offset=".72" stop-color="#f1a02e"/>
<stop offset="1" stop-color="#b96513"/>
</radialGradient>
</defs>
<g id="faceplateSurface">
<rect x="69" y="366" width="1078" height="31" rx="19" fill="url(#glassLip)"/>
<path d="M88 369 H1128 Q1143 369 1147 385" fill="none" stroke="#353735" stroke-opacity=".8" stroke-width="2"/>
<rect x="69" y="379" width="1078" height="367" rx="19" fill="url(#champagneFace)"/>
<rect x="69" y="379" width="1078" height="367" rx="19" fill="url(#microBrush)"/>
<path d="M88 379 H1128 Q1142 379 1147 395" fill="none" stroke="#f0d09c" stroke-width="2.2"/>
<rect x="73" y="383" width="1070" height="359" rx="16" fill="none" stroke="#d2b584" stroke-width="1.5"/>
<rect x="77" y="387" width="1062" height="351" rx="14" fill="none" stroke="#715438" stroke-opacity=".72" stroke-width="1.4"/>
<line x1="641" y1="578" x2="817" y2="578" stroke="#705438" stroke-width="1.2"/>
<g fill="#261d16" font-family="Berkeley Mono, monospace" text-anchor="middle" letter-spacing=".5">
<text x="729" y="422" font-size="17">PLAY MODES</text>
<text x="684" y="492" font-size="15">REPEAT</text>
<text x="770" y="492" font-size="15">SINGLE</text>
<text x="684" y="563" font-size="15">RANDOM</text>
<text x="770" y="563" font-size="15">CONSUME</text>
<text x="729" y="608" font-size="16">RADIO SEARCH</text>
<text x="684" y="686" font-size="15">NAME</text>
<text x="770" y="686" font-size="15">TAGS</text>
<text x="162" y="690" font-size="16">PREV</text>
<text x="285" y="690" font-size="16">PLAY/PAUSE</text>
<text x="408" y="690" font-size="16">STOP</text>
<text x="531" y="690" font-size="16">NEXT</text>
<text x="972" y="691" font-size="17">VOLUME</text>
</g>
<image href="../concepts/30a-dupre-studios-user-refined-playlist.png"
x="0" y="0" width="1916" height="821" clip-path="url(#volumeKnobClip)"/>
</g>
<g id="meters"></g>
<g id="volumeMask"></g>
<g id="volumeSegments"></g>
</svg>
<div class="transport-bank" aria-label="Transport controls">
<button class="transport-button" data-transport="prev" aria-label="Previous">|◀</button>
<button class="transport-button" data-transport="play" aria-label="Play or pause">▶Ⅱ</button>
<button class="transport-button" data-transport="stop" aria-label="Stop">■</button>
<button class="transport-button" data-transport="next" aria-label="Next">▶|</button>
</div>
<button class="mode-button mode-repeat" data-mode="repeat" aria-label="Repeat playlist" aria-pressed="false"></button>
<button class="mode-button mode-single" data-mode="single" aria-label="Repeat one track" aria-pressed="false"></button>
<button class="mode-button mode-random" data-mode="random" aria-label="Random playback" aria-pressed="false"></button>
<button class="mode-button mode-consume" data-mode="consume" aria-label="Consume tracks" aria-pressed="false"></button>
<button class="radio-button radio-name" data-radio="name" aria-label="Search radio stations by name"></button>
<button class="radio-button radio-tags" data-radio="tags" aria-label="Search radio stations by tag"></button>
<div class="volume-hit" id="volumeHit" role="slider" tabindex="0" aria-label="Player volume" aria-valuemin="0" aria-valuemax="100" aria-valuenow="68"></div>
<div class="playlist-actions" aria-label="Playlist actions">
<button class="playlist-action" data-action="add">ADD</button>
<button class="playlist-action" data-action="new">NEW</button>
<button class="playlist-action" data-action="load">LOAD</button>
<button class="playlist-action" data-action="save">SAVE</button>
<button class="playlist-action" data-action="delete">DELETE</button>
</div>
<div class="status-toast" id="statusToast" role="status" aria-live="polite"></div>
</div>
</section>
<div class="inspection-note">
<span>Keyboard: Space play/pause · arrows select · Page Up/Down browse · Home/End · R/S/X/C modes. Prototype VU motion is synthetic; production reads mpv RMS.</span>
<span id="interactionStatus">Local fixture · playing · volume 68</span>
</div>
</main>
<dialog id="deleteDialog">
<form method="dialog">
<h2>Delete this playlist?</h2>
<p id="deletePrompt">This removes the saved playlist. Playback stops and the receiver returns to an untitled empty queue.</p>
<menu>
<button class="lab-button" value="cancel">Cancel</button>
<button class="lab-button delete-confirm" value="confirm">Delete playlist</button>
</menu>
</form>
</dialog>
<script>
(() => {
"use strict";
const BASE_ROW_HEIGHT = 37;
const VISIBLE_ROWS = 14;
const localSeed = [
["Absolutely Cuckoo", "The Magnetic Fields", "02:02"],
["I Don’t Believe in the Sun", "The Magnetic Fields", "02:50"],
["All My Little Words", "The Magnetic Fields", "02:03"],
["A Chicken With Its Head Cut Off — Remastered Anniversary Edition", "The Magnetic Fields and the Long-Lost Orchestra", "02:59"],
["(I’m) Dazota", "The Magnetic Fields", "02:38"],
["I Don’t Want to Get Over You", "The Magnetic Fields", "02:50"],
["Come Back From San Francisco", "The Magnetic Fields", "02:37"],
["The Luckiest Guy on the Lower East Side", "The Magnetic Fields", "01:32"],
["Let’s Pretend We’re Bunny Rabbits", "The Magnetic Fields", "02:10"],
["The Cactus Where Your Heart Should Be", "The Magnetic Fields", "02:38"],
["I Think I Need a New Heart", "The Magnetic Fields", "02:58"],
["The Book of Love", "The Magnetic Fields", "02:56"],
["Fido, Your Leash Is Too Long", "The Magnetic Fields", "02:13"],
["How Fucking Romantic", "The Magnetic Fields", "00:58"],
["The One You Really Love", "The Magnetic Fields", "02:53"],
["Punk Love", "The Magnetic Fields", "00:58"],
["Parades Go By", "The Magnetic Fields", "02:56"],
["Boa Constrictor", "The Magnetic Fields", "00:58"],
["A Pretty Girl Is Like…", "The Magnetic Fields", "01:50"],
["My Sentimental Melody", "The Magnetic Fields", "03:07"]
];
const fillerTitles = [
"Nothing Matters When We’re Dancing", "Sweet-Lovin’ Man", "The Things We Did and Didn’t Do",
"Roses", "Love Is Like Jazz", "When My Boy Walks Down the Street", "Time Enough for Rocking",
"Very Funny", "Grand Canyon", "No One Will Ever Love You", "If You Don’t Cry",
"You’re My Only Home", "Washington, D.C.", "Long-Forgotten Fairytale"
];
const radioSeed = [
["Groove Salad", "SomaFM · Ambient / Downtempo", "ON AIR"],
["Drone Zone", "SomaFM · Atmospheric Textures", "256k"],
["Secret Agent", "SomaFM · Cinematic", "256k"],
["Illinois Street Lounge", "SomaFM · Lounge", "256k"],
["Space Station Soma", "SomaFM · Space Music", "256k"],
["Left Coast 70s", "SomaFM · Mellow Rock", "256k"],
["The Trip", "SomaFM · Progressive House", "256k"],
["Underground 80s", "SomaFM · Synthpop", "256k"],
["Deep Space One", "SomaFM · Ambient", "256k"],
["Black Rock FM", "SomaFM · Eclectic", "256k"],
["Bossa Beyond", "SomaFM · Brazilian", "256k"],
["Seven Inch Soul", "SomaFM · Vintage Soul", "256k"],
["Suburbs of Goa", "SomaFM · South Asian", "256k"],
["Boot Liquor", "SomaFM · Americana", "256k"],
["Heavyweight Reggae", "SomaFM · Roots Reggae", "256k"],
["Lush", "SomaFM · Female Vocals", "256k"],
["Beat Blender", "SomaFM · Electronic", "256k"],
["Digitalis", "SomaFM · Indie Electronic", "256k"]
];
const makeLocalTracks = () => Array.from({length: 69}, (_, index) => {
const base = localSeed[index] || [
fillerTitles[index % fillerTitles.length],
index % 7 === 0 ? "The Magnetic Fields with an Improbably Long Guest Credit" : "The Magnetic Fields",
`${String(1 + (index % 3)).padStart(2, "0")}:${String((17 * index) % 60).padStart(2, "0")}`
];
return {id: `local-${index}`, title: base[0], artist: base[1], meta: base[2]};
});
const makeRadioTracks = () => radioSeed.map((row, index) => ({
id: `radio-${index}`, title: row[0], artist: row[1], meta: row[2]
}));
const fixtures = {
local: {
name: "69 Love Songs — The Complete Three-Volume Collection",
kind: "PLAYLIST",
tracks: makeLocalTracks,
selected: 3,
position: 90,
duration: 179,
metadata: [
"A Chicken With Its Head Cut Off — Remastered Anniversary Edition",
"The Magnetic Fields and the Long-Lost Orchestra",
"69 Love Songs: The Complete Three-Volume Collection",
"Merge Records",
"1999"
]
},
radio: {
name: "Name Search · Ambient",
kind: "RADIO",
tracks: makeRadioTracks,
selected: 0,
position: 0,
duration: 0,
metadata: ["Groove Salad", "SomaFM", "Ambient / Downtempo", "256 kbps"]
}
};
const state = {
fixture: "local",
playlistName: fixtures.local.name,
tracks: fixtures.local.tracks(),
selected: fixtures.local.selected,
position: fixtures.local.position,
duration: fixtures.local.duration,
playing: true,
volume: 68,
modes: {repeat: false, single: false, random: false, consume: false},
search: null,
vu: {left: -20, right: -20},
benchmark: null
};
const $ = selector => document.querySelector(selector);
const $$ = selector => [...document.querySelectorAll(selector)];
const receiver = $("#receiver");
const rows = $("#playlistRows");
const scroll = $("#playlistScroll");
const rail = $("#scrollRail");
const thumb = $("#scrollThumb");
const seekTrack = $("#seekTrack");
const volumeHit = $("#volumeHit");
const toast = $("#statusToast");
const deleteDialog = $("#deleteDialog");
let toastTimer = null;
let seekDragging = false;
let volumeDragging = false;
let thumbDragging = false;
let thumbGrabOffset = 0;
let lastMeterTime = performance.now();
const clamp = (value, min, max) => Math.max(min, Math.min(max, value));
const formatTime = seconds => {
const value = Math.max(0, Math.round(seconds));
return `${String(Math.floor(value / 60)).padStart(2, "0")}:${String(value % 60).padStart(2, "0")}`;
};
function announce(message) {
clearTimeout(toastTimer);
toast.textContent = message;
toast.classList.add("show");
toastTimer = setTimeout(() => toast.classList.remove("show"), 1800);
updateInspection(message);
}
function currentTrack() { return state.tracks[state.selected] || null; }
function switchFixture(name, message = null) {
const source = fixtures[name];
state.fixture = name;
state.playlistName = source.name;
state.tracks = source.tracks();
state.selected = source.selected;
state.position = source.position;
state.duration = source.duration;
state.playing = true;
state.search = null;
scroll.scrollTop = 0;
renderAll();
announce(message || `${name === "local" ? "Local playlist" : "Radio station"} fixture loaded`);
}
function renderInfo() {
const source = fixtures[state.fixture];
const track = currentTrack();
const metadata = track ? (state.fixture === "local" ? [
track.title,
track.artist,
source.metadata[2],
source.metadata[3],
source.metadata[4]
] : [track.title, "SomaFM", track.artist.replace(/^SomaFM · /, ""), "256 kbps"]) : [];
$("#metadata").innerHTML = metadata.filter(Boolean).map((line, index) =>
`<div class="metadata-line ${index ? "dim" : ""}" title="${escapeHtml(line)}">${escapeHtml(line)}</div>`
).join("");
$("#art").innerHTML = state.fixture === "radio"
? '<img src="../../../assets/vinyl-placeholder.svg" alt="Radio station artwork unavailable; vinyl placeholder">'
: '<div class="album-crop" role="img" aria-label="69 Love Songs album art"></div>';
const onAir = state.fixture === "radio" && Boolean(track);
$("#onAirUnderArt").hidden = !onAir;
$("#seekLine").hidden = onAir || !track;
if (track && !onAir) updateSeekVisual();
}
function escapeHtml(value) {
return String(value).replace(/[&<>"']/g, character => ({
"&": "&", "<": "<", ">": ">", '"': """, "'": "'"
})[character]);
}
function renderHeader() {
$("#headerName").textContent = state.playlistName || "UNTITLED";
$("#headerName").title = state.playlistName || "UNTITLED";
const noun = state.fixture === "radio" ? (state.tracks.length === 1 ? "STATION" : "STATIONS") : (state.tracks.length === 1 ? "TRACK" : "TRACKS");
$("#headerCount").textContent = `${state.tracks.length} ${noun}`;
}
function renderRows() {
const rowHeight = scroll.clientHeight / VISIBLE_ROWS;
rows.style.setProperty("--row-height", `${rowHeight}px`);
if (!state.tracks.length) {
rows.innerHTML = Array.from({length: VISIBLE_ROWS}, () => '<div class="empty-row"></div>').join("");
rows.style.height = `${scroll.clientHeight}px`;
rail.hidden = true;
return;
}
rows.style.height = `${rowHeight * Math.max(VISIBLE_ROWS, state.tracks.length)}px`;
rows.innerHTML = state.tracks.map((track, index) => `
<div class="playlist-row ${index === state.selected ? "selected" : ""}" data-row="${index}" title="${escapeHtml(`${track.title} — ${track.artist}`)}">
<span class="row-number">${String(index + 1).padStart(2, "0")}</span>
<span class="row-name">${escapeHtml(track.title)} — ${escapeHtml(track.artist)}</span>
<span class="row-meta">${state.fixture === "radio" && index === state.selected && state.playing ? "ON AIR" : escapeHtml(track.meta)}</span>
</div>`).join("");
$$("[data-row]").forEach(row => row.addEventListener("click", () => selectTrack(Number(row.dataset.row), true)));
requestAnimationFrame(updateScrollbar);
}
function renderControls() {
const hasTrack = Boolean(currentTrack());
const play = $('[data-transport="play"]');
play.classList.toggle("playing", state.playing && hasTrack);
play.disabled = !hasTrack;
$('[data-transport="prev"]').disabled = !hasTrack;
$('[data-transport="next"]').disabled = !hasTrack;
$('[data-transport="stop"]').disabled = !hasTrack;
$$("[data-mode]").forEach(button => button.setAttribute("aria-pressed", String(state.modes[button.dataset.mode])));
$("#localFixture").setAttribute("aria-pressed", String(state.fixture === "local"));
$("#radioFixture").setAttribute("aria-pressed", String(state.fixture === "radio"));
volumeHit.setAttribute("aria-valuenow", String(state.volume));
updateVolumeSegments();
updateInspection();
}
function renderAll() {
const started = performance.now();
renderInfo();
renderHeader();
renderRows();
renderControls();
recordRender(performance.now() - started);
}
function updateSeekVisual() {
const percentage = state.duration ? clamp((state.position / state.duration) * 100, 0, 100) : 0;
seekTrack.style.setProperty("--progress", percentage.toFixed(3));
seekTrack.setAttribute("aria-valuenow", String(Math.round(percentage)));
$("#elapsed").textContent = formatTime(state.position);
$("#duration").textContent = formatTime(state.duration);
}
function seekFromPointer(event) {
if (state.fixture !== "local" || !currentTrack()) return;
const bounds = seekTrack.getBoundingClientRect();
const fraction = clamp((event.clientX - bounds.left) / bounds.width, 0, 1);
state.position = state.duration * fraction;
updateSeekVisual();
updateInspection(`Seek ${formatTime(state.position)} / ${formatTime(state.duration)}`);
}
function selectTrack(index, play = false) {
if (!state.tracks.length) return;
state.selected = clamp(index, 0, state.tracks.length - 1);
state.position = 0;
if (play) state.playing = true;
renderInfo();
renderRows();
renderControls();
ensureSelectedVisible();
}
function ensureSelectedVisible() {
const row = rows.children[state.selected];
if (row) row.scrollIntoView({block: "nearest"});
}
function moveTrack(delta) {
if (!state.tracks.length) return;
const next = (state.selected + delta + state.tracks.length) % state.tracks.length;
selectTrack(next, true);
announce(`${delta < 0 ? "Previous" : "Next"}: ${currentTrack().title}`);
}
function togglePlay() {
if (!currentTrack()) return;
state.playing = !state.playing;
renderRows();
renderControls();
announce(state.playing ? "Playback resumed" : "Playback paused");
}
function setVolume(value, message = true) {
state.volume = Math.round(clamp(value, 0, 100));
renderControls();
if (message) updateInspection(`Player volume ${state.volume}`);
}
function volumeFromPointer(event) {
const bounds = volumeHit.getBoundingClientRect();
const x = event.clientX - (bounds.left + bounds.width / 2);
const y = event.clientY - (bounds.top + bounds.height / 2);
let angle = Math.atan2(y, x) * 180 / Math.PI;
if (angle < 150) angle += 360;
setVolume(((clamp(angle, 150, 390) - 150) / 240) * 100, false);
}
function updateVolumeSegments() {
const points = [
[885, 630], [871, 608], [861, 583], [857, 557], [857, 531], [864, 507],
[875, 484], [890, 464], [906, 448], [924, 440], [947, 432], [972, 431],
[996, 433], [1018, 440], [1038, 452], [1055, 467], [1068, 486], [1079, 507],
[1086, 532], [1087, 557], [1085, 582], [1078, 608], [1059, 628]
];
const count = points.length;
const lit = Math.round((state.volume / 100) * (count - 1));
$("#volumeMask").innerHTML = points.map(([x, y]) =>
`<circle cx="${x}" cy="${y}" r="5.3" fill="#0d0e0c" stroke="#655039" stroke-width=".8"/>`
).join("");
const circles = points.map(([x, y], index) => {
const active = index <= lit;
if (active) {
return `<g><circle cx="${x}" cy="${y}" r="10" fill="#ff9d24" fill-opacity=".28"/><circle cx="${x}" cy="${y}" r="7" fill="#ffad32" fill-opacity=".22"/><circle cx="${x}" cy="${y}" r="4.8" fill="url(#volumeLamp)" stroke="#fff1c2" stroke-width=".85"/></g>`;
}
return "";
}).join("");
$("#volumeSegments").innerHTML = circles;
}
function meterMarkup(x, id) {
const labels = ["-40", "-20", "-10", "-6", "-3", "0", "+3"];
const ticks = Array.from({length: 19}, (_, index) => {
const angle = -56 + index * (112 / 18);
const major = index % 3 === 0;
const radians = angle * Math.PI / 180;
const x1 = 115 + Math.sin(radians) * (major ? 91 : 95);
const y1 = 131 - Math.cos(radians) * (major ? 91 : 95);
const x2 = 115 + Math.sin(radians) * 102;
const y2 = 131 - Math.cos(radians) * 102;
return `<line x1="${x1}" y1="${y1}" x2="${x2}" y2="${y2}" stroke="${index > 14 ? "#d43b25" : "#d7c48d"}" stroke-width="${major ? 1.7 : 1}"/>`;
}).join("");
const labelText = labels.map((label, index) => {
const angle = -52 + index * (104 / (labels.length - 1));
const radians = angle * Math.PI / 180;
const lx = 115 + Math.sin(radians) * 72;
const ly = 131 - Math.cos(radians) * 72;
return `<text x="${lx}" y="${ly}" text-anchor="middle" fill="${index > 4 ? "#de442f" : "#ddd0aa"}" font-family="Berkeley Mono,monospace" font-size="10">${label}</text>`;
}).join("");
return `<g transform="translate(${x} 432)">
<rect x="0" y="0" width="230" height="113" rx="7" fill="url(#meterFrame)"/>
<rect x="4" y="4" width="222" height="105" rx="5" fill="#050605" stroke="#1b1812" stroke-width="2"/>
<rect x="5" y="5" width="220" height="103" rx="5" fill="url(#meterGlow)"/>
${ticks}${labelText}
<text x="115" y="91" text-anchor="middle" fill="#e7d7ae" font-family="Berkeley Mono,monospace" font-size="18">VU</text>
<circle cx="115" cy="111" r="17" fill="url(#meterGlow)" opacity=".9"/>
<line id="needle-${id}" x1="115" y1="105" x2="115" y2="27" stroke="#f3d59c" stroke-width="2.2" transform="rotate(0 115 105)"/>
<circle cx="115" cy="105" r="3.2" fill="#c7a56f"/>
</g>`;
}
function initMeters() {
$("#meters").innerHTML = meterMarkup(112, "left") + meterMarkup(365, "right");
}
function vuAngle(db) {
const normalized = clamp((db + 40) / 43, 0, 1);
return -54 + normalized * 108;
}
function updateMeters(timestamp) {
const started = performance.now();
const elapsed = Math.min(.05, (timestamp - lastMeterTime) / 1000);
lastMeterTime = timestamp;
const signal = state.playing && currentTrack();
const base = timestamp / 350;
const targets = signal ? {
left: -13 + Math.sin(base * 1.13) * 5 + Math.sin(base * 2.31) * 2,
right: -14 + Math.sin(base * .97 + 1.1) * 5.5 + Math.sin(base * 2.08) * 2
} : {left: -40, right: -40};
for (const side of ["left", "right"]) {
const target = targets[side];
const speed = target > state.vu[side] ? 7.2 : 2.4;
state.vu[side] += (target - state.vu[side]) * Math.min(1, elapsed * speed);
$(`#needle-${side}`).setAttribute("transform", `rotate(${vuAngle(state.vu[side]).toFixed(2)} 115 105)`);
}
recordRender(performance.now() - started);
requestAnimationFrame(updateMeters);
}
function updateScrollbar() {
const overflow = scroll.scrollHeight - scroll.clientHeight;
rail.hidden = overflow <= 1;
if (overflow <= 1) return;
const railHeight = rail.clientHeight;
const ratio = scroll.clientHeight / scroll.scrollHeight;
const thumbHeight = Math.max(38, railHeight * ratio);
const travel = railHeight - thumbHeight;
thumb.style.height = `${thumbHeight}px`;
thumb.style.top = `${travel * (scroll.scrollTop / overflow)}px`;
}
function updateInspection(message = null) {
const label = state.fixture === "radio" ? "Radio fixture" : "Local fixture";
const play = state.playing ? "playing" : "paused";
$("#interactionStatus").textContent = message || `${label} · ${play} · volume ${state.volume}`;
}
function handlePlaylistAction(action) {
if (action === "add") {
const number = state.tracks.length + 1;
state.tracks.push({id: `added-${Date.now()}`, title: "Newly Added Track With a Deliberately Long Display Name", artist: "Prototype Library", meta: "04:12"});
state.selected = number - 1;
renderAll();
ensureSelectedVisible();
announce(`Added track ${number}`);
} else if (action === "new") {
state.playlistName = "UNTITLED";
state.tracks = [];
state.selected = 0;
state.playing = false;
renderAll();
announce("New empty playlist");
} else if (action === "load") {
switchFixture(state.fixture, `Loaded ${fixtures[state.fixture].name}`);
} else if (action === "save") {
announce(`Saved ${state.playlistName || "UNTITLED"} · ${state.tracks.length} tracks`);
} else if (action === "delete") {
$("#deletePrompt").textContent = `Delete “${state.playlistName || "UNTITLED"}”? This removes the saved playlist and leaves an untitled empty queue.`;
deleteDialog.showModal();
}
}
function handleTransport(action) {
if (action === "prev") moveTrack(-1);
if (action === "next") moveTrack(1);
if (action === "play") togglePlay();
if (action === "stop") {
state.playing = false;
state.position = 0;
renderRows();
renderControls();
if (state.fixture === "local") updateSeekVisual();
announce("Playback stopped");
}
}
function radioSearch(kind) {
const label = kind === "name" ? "Name search · Groove" : "Tag search · Ambient";
if (state.fixture !== "radio") switchFixture("radio", label);
state.search = kind;
state.playlistName = label;
renderHeader();
announce(label);
}
function recordRender(value) {
if (!state.benchmark) return;
state.benchmark.samples.push(value);
}
function percentile(sorted, fraction) {
return sorted[Math.min(sorted.length - 1, Math.floor(sorted.length * fraction))] || 0;
}
function updateBenchmarkReadout() {
if (!state.benchmark) return;
const elapsed = performance.now() - state.benchmark.started;
const remaining = Math.max(0, state.benchmark.duration - elapsed);
const sorted = [...state.benchmark.samples].sort((a, b) => a - b);
const median = percentile(sorted, .5);
const p95 = percentile(sorted, .95);
$("#benchmarkReadout").textContent = remaining > 0
? `Benchmark ${Math.ceil(remaining / 1000)}s · median ${median.toFixed(2)} ms · p95 ${p95.toFixed(2)} ms`
: `Complete · ${sorted.length} updates · median ${median.toFixed(2)} ms · p95 ${p95.toFixed(2)} ms`;
if (remaining > 0) setTimeout(updateBenchmarkReadout, 250);
else {
state.benchmark.complete = true;
$("#benchmarkButton").disabled = false;
document.documentElement.dataset.benchmark = JSON.stringify({
samples: sorted.length,
medianMs: Number(median.toFixed(3)),
p95Ms: Number(p95.toFixed(3)),
durationMs: state.benchmark.duration,
viewport: `${Math.round(receiver.getBoundingClientRect().width)}x${Math.round(receiver.getBoundingClientRect().height)}`
});
announce("60-second dynamic-update benchmark complete");
}
}
function runBenchmark(duration = 60000) {
if (state.benchmark && !state.benchmark.complete) return;
state.benchmark = {started: performance.now(), duration, samples: [], complete: false};
$("#benchmarkButton").disabled = true;
updateBenchmarkReadout();
}
function bindEvents() {
$("#localFixture").addEventListener("click", () => switchFixture("local"));
$("#radioFixture").addEventListener("click", () => switchFixture("radio"));
$("#restoreFixture").addEventListener("click", () => switchFixture(state.fixture));
$("#benchmarkButton").addEventListener("click", () => runBenchmark());
$$("[data-transport]").forEach(button => button.addEventListener("click", () => handleTransport(button.dataset.transport)));
$$("[data-mode]").forEach(button => button.addEventListener("click", () => {
const mode = button.dataset.mode;
state.modes[mode] = !state.modes[mode];
renderControls();
announce(`${mode.toUpperCase()} ${state.modes[mode] ? "enabled" : "disabled"}`);
}));
$$("[data-radio]").forEach(button => button.addEventListener("click", () => radioSearch(button.dataset.radio)));
$$("[data-action]").forEach(button => button.addEventListener("click", () => handlePlaylistAction(button.dataset.action)));
seekTrack.addEventListener("pointerdown", event => {
seekDragging = true;
seekTrack.setPointerCapture(event.pointerId);
seekFromPointer(event);
});
seekTrack.addEventListener("pointermove", event => { if (seekDragging) seekFromPointer(event); });
seekTrack.addEventListener("pointerup", event => {
seekDragging = false;
seekTrack.releasePointerCapture(event.pointerId);
announce(`Seeked to ${formatTime(state.position)}`);
});
seekTrack.addEventListener("keydown", event => {
if (!["ArrowLeft", "ArrowRight"].includes(event.key)) return;
event.preventDefault();
state.position = clamp(state.position + (event.key === "ArrowRight" ? 5 : -5), 0, state.duration);
updateSeekVisual();
});
volumeHit.addEventListener("pointerdown", event => {
volumeDragging = true;
volumeHit.setPointerCapture(event.pointerId);
volumeFromPointer(event);
});
volumeHit.addEventListener("pointermove", event => { if (volumeDragging) volumeFromPointer(event); });
volumeHit.addEventListener("pointerup", event => {
volumeDragging = false;
volumeHit.releasePointerCapture(event.pointerId);
announce(`Player volume ${state.volume}`);
});
volumeHit.addEventListener("wheel", event => {
event.preventDefault();
setVolume(state.volume + (event.deltaY < 0 ? 5 : -5));
}, {passive: false});
volumeHit.addEventListener("keydown", event => {
if (!["ArrowLeft", "ArrowDown", "ArrowRight", "ArrowUp"].includes(event.key)) return;
event.preventDefault();
setVolume(state.volume + (["ArrowRight", "ArrowUp"].includes(event.key) ? 5 : -5));
});
scroll.addEventListener("scroll", updateScrollbar);
thumb.addEventListener("pointerdown", event => {
thumbDragging = true;
thumbGrabOffset = event.clientY - thumb.getBoundingClientRect().top;
thumb.setPointerCapture(event.pointerId);
});
thumb.addEventListener("pointermove", event => {
if (!thumbDragging) return;
const railBox = rail.getBoundingClientRect();
const thumbHeight = thumb.getBoundingClientRect().height;
const travel = railBox.height - thumbHeight;
const top = clamp(event.clientY - railBox.top - thumbGrabOffset, 0, travel);
scroll.scrollTop = (top / travel) * (scroll.scrollHeight - scroll.clientHeight);
});
thumb.addEventListener("pointerup", event => {
thumbDragging = false;
thumb.releasePointerCapture(event.pointerId);
});
deleteDialog.addEventListener("close", () => {
if (deleteDialog.returnValue !== "confirm") return;
const deleted = state.playlistName || "UNTITLED";
state.playlistName = "UNTITLED";
state.tracks = [];
state.selected = 0;
state.playing = false;
renderAll();
announce(`Deleted ${deleted}`);
});
document.addEventListener("keydown", event => {
if (deleteDialog.open || event.target.matches("button, input, [role=slider], .playlist-scroll")) return;
if (event.code === "Space") { event.preventDefault(); togglePlay(); }
else if (event.key === "ArrowDown") { event.preventDefault(); selectTrack(state.selected + 1); ensureSelectedVisible(); }
else if (event.key === "ArrowUp") { event.preventDefault(); selectTrack(state.selected - 1); ensureSelectedVisible(); }
else if (event.key === "PageDown") { event.preventDefault(); selectTrack(state.selected + VISIBLE_ROWS); ensureSelectedVisible(); }
else if (event.key === "PageUp") { event.preventDefault(); selectTrack(state.selected - VISIBLE_ROWS); ensureSelectedVisible(); }
else if (event.key === "Home") { event.preventDefault(); selectTrack(0); ensureSelectedVisible(); }
else if (event.key === "End") { event.preventDefault(); selectTrack(state.tracks.length - 1); ensureSelectedVisible(); }
else if (["r", "s", "x", "c"].includes(event.key.toLowerCase())) {
const mode = ({r: "repeat", s: "single", x: "random", c: "consume"})[event.key.toLowerCase()];
state.modes[mode] = !state.modes[mode];
renderControls();
}
});
window.addEventListener("resize", () => {
renderRows();
updateScrollbar();
});
}
function runSelfTest() {
const checks = [];
const check = (name, condition) => {
checks.push({name, passed: Boolean(condition)});
if (!condition) throw new Error(`Self-test failed: ${name}`);
};
try {
switchFixture("radio", "Self-test radio fixture");
check("radio hides seek", $("#seekLine").hidden);
check("radio has two ON AIR indications", !$("#onAirUnderArt").hidden && $(".playlist-row.selected .row-meta")?.textContent === "ON AIR");
$('[data-mode="repeat"]').click();
check("mode latches", state.modes.repeat);
$('[data-transport="next"]').click();
check("next selects a station", state.selected === 1);
$('[data-action="add"]').click();
check("add changes queue", state.tracks.length === 19);
$('[data-action="new"]').click();
check("new clears queue", state.tracks.length === 0 && state.playlistName === "UNTITLED");
$('[data-action="load"]').click();
check("load restores queue", state.tracks.length === 18);
switchFixture("local", "Self-test local fixture");
check("local shows seek", !$("#seekLine").hidden);
setVolume(35, false);
check("volume state changes", state.volume === 35);
state.position = state.duration * .72;
updateSeekVisual();
check("seek state changes", Math.round(Number(seekTrack.getAttribute("aria-valuenow"))) === 72);
scroll.scrollTop = scroll.scrollHeight;
updateScrollbar();
check("long playlist has scrollbar", !rail.hidden && scroll.scrollTop > 0);
check("fourteen rows fit viewport", Math.abs(rows.children[0].getBoundingClientRect().height * VISIBLE_ROWS - scroll.clientHeight) < 2);
switchFixture("local", "Self-test restored");
document.documentElement.dataset.selftest = JSON.stringify({passed: true, checks});
} catch (error) {
document.documentElement.dataset.selftest = JSON.stringify({passed: false, error: error.message, checks});
console.error(error);
}
}
initMeters();
bindEvents();
renderAll();
requestAnimationFrame(updateMeters);
const params = new URLSearchParams(location.search);
if (params.get("state") === "radio") switchFixture("radio");
if (params.has("benchmark")) runBenchmark(Number(params.get("benchmark")) || 60000);
if (params.has("selftest")) setTimeout(runSelfTest, 50);
})();
</script>
</body>
</html>
|
