dummy/gum_picker_muted_fallback_styled.html at main · jan-ivar/dummy · GitHub

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<!DOCTYPE html>
<html>
<meta charset=utf-8>
<link rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css"/>
<style>
/* ─── light theme tokens ─────────────────────────────────────────── */
:root{
  --video-w : 640px;   /* keep these in sync with your <video>/<canvas> */
  --canvas-w:  80px;
  --bg:#ffffff;          /* page */
  --panel:#ffffff;       /* toolbars / buttons */
  --pill:#ffffff;        /* dropdown “track”   */
  --fg:#222;             /* text + idle icons  */
  --accent:#0b65ff;      /* camera / mic ON    */
  --danger:#d93c30;      /* hang-up            */
  --border:#d0d0d0;      /* subtle stroke      */
  --shadow:0 2px 6px rgba(0,0,0,.12);
}
html{ font-size:14px; }        /* default is 16px */
html,body{margin:5;background:var(--bg);font-family:sans-serif;color:var(--fg)}
table{border-collapse:collapse}
button,select{font:inherit;color:inherit}

/* 1. wrapper shrinks to the larger child and centres on the page */
.stage{
  width:calc(var(--video-w) + var(--canvas-w));   /* 720 px here */
  display:flex;           /* column layout = media on top, bar below */
  flex-direction:column;
  overflow:hidden;        /* anything wider is simply clipped */
}

/* 2. keep video and canvas in one line */
.media{ display:flex; }

.panel{
  display:flex;
  align-items:center;
  width:100%;          /* still lock to video + canvas width */
  gap:1.5rem;
  overflow:hidden;     /* just in case                        */
}
.panel .combo:last-child{ flex:0 0 auto; }

.combo{
  /* » let each combo start at 0 and grow/shrink evenly « */
  flex:1 1 0;          /* grow = 1,  shrink = 1,  basis = 0  */
  display:flex;
  align-items:center;
  gap:.6rem;
  min-width:0;         /* allow shrinking below content-size  */
}

/* round icon never changes size */
.circle{flex:0 0 56px;}


/* SELECT shrinks / ellipses instead of widening the row */
.combo select{
  flex:1 1 0;       /* can grow AND shrink; base = 0            */
  width:0;          /* ← key: override the auto (min-content)   */
  min-width:0;      /* allow shrinking past intrinsic size      */
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* red hang-up circle: stay fixed size and hug the right edge */
#halt{
  flex:0 0 56px;              /* don’t grow or shrink                 */
}

/* red circle column already sized in grid-template */
.circle.danger{background:var(--danger);color:#fff}

/* ─── pill-style selectors ───────────────────────────────────────── */
select#camera,
select#microphone,
select#speakers{
  width:auto;                /* ← let the text decide */
}

select#camera,
select#microphone,
select#speakers{
  appearance:none;
  width:auto;
  background:transparent;
  border:none;
  cursor:pointer;
}
.pill{
  background:var(--pill);
  border:1px solid var(--border);
  border-radius:9999px;
  box-shadow:var(--shadow);
  position:relative;
  display:flex;
  align-items:center;
  min-width:320px;
}
.pill i{margin-left:1rem;font-size:1rem}
.pill::after{                               /* custom arrow */
  content:"\f078";                          /* fa-chevron-down */
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:1rem;
  pointer-events:none;
}
video {
  width: 640px;           /* or 100% */
  height: 300px;
  background:black;
  object-fit: cover;      /* scale + crop to fill */
  object-position: center;
}
canvas {
  background:#a0a0a0;
}
.ctrls{
  display:flex;
  justify-content:space-evenly;            /* prevents clipping  */
  gap:1.25rem;
  padding:1.25rem;
  background:var(--panel);
  border-radius:1.25rem;
  box-shadow:var(--shadow);
  min-width:320px;                         /* prevents clipping  */
}
.circle{
  --sz:56px;                           /* your diameter */
  width:var(--sz);
  height:var(--sz);
  flex:0 0 var(--sz);                  /* ⬅️  rigid - don’t shrink or grow  */
  border:none;border-radius:50%;
  background:var(--panel);
  color:var(--fg);
  font-size:1.4rem;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:background .2s,transform .1s;
}
.circle:hover{background:#f0f0f0}
.circle:active{transform:scale(.95)}
input[type=checkbox]{display:none}

/* camera / mic “ON” colors driven by the hidden checkboxes */
#camOn:checked + label .circle,
#micOn:checked + label .circle,
#halt.circle{
  background:var(--danger);   /* #d93c30 from :root */
  color:#fff;                 /* white icon */
}
</style>


<div class="stage">
  <div class="media">
    <video id="video" autoplay></video>
    <canvas id="canvas" width="80" height="300"></canvas>
  </div>
  <div class="panel">
    <div class="combo">
      <input type="checkbox" id="camOn" class="toggle">
      <label for="camOn" class="circle">
        <i id="camIcon" class="fa-solid fa-video"></i>
      </label>
      <select id="camera"></select></td>
    </div>
    <div class="combo">
      <input type="checkbox" id="micOn" class="toggle">
      <label for="micOn" class="circle">
        <i id="micIcon" class="fa-solid fa-video"></i>
      </label>
      <select id="microphone"></select></td>
    </div>
    <div class="combo">
      <label>
        <i id="spkIcon" class="fa-solid fa-volume-high"></i>
      </label>
      <select id="speakers">
        <option value="">Default system output</option>
      </select>
    </div>
    <div class="combo">
      <button id="halt" class="circle"><i class="fa-solid fa-phone-slash"></i></button></td>
    </div>
  </div>
</div>


<div id="div"></div><br>
<script>
const console = {log: msg => div.innerHTML += `${msg}<br>`};

camOn.checked = micOn.checked = false;
const defaultSpeakerLabel = "Default system output";

if (!localStorage.speakersLabel) {
  localStorage.speakersLabel = defaultSpeakerLabel;
}

async function getUserMedia(constraints) {
  const stream = await navigator.mediaDevices.getUserMedia(constraints);
  for (const track of stream.getTracks()) {
    localStorage[track.kind] = track.getSettings().deviceId;
    localStorage[track.kind + "Label"] = track.label;
    track.addEventListener("ended", async () => {
      try {
        console.log(`${track.label}'s ${track.kind} track ended.`);
        console.log(`Manually fall back to any available ${track.kind} device.`);
        const [newTrack] = (await replaceUserMedia({audio: true})).getAudioTracks();
        video.srcObject = spectrum(new MediaStream([newTrack, ...video.srcObject.getVideoTracks()]));
      } catch (e) {
        console.log(e);
      }
    }, {once:true});
  }
  return stream;
}

async function selectAudioOutput(options) {
  if ("selectAudioOutput" in navigator.mediaDevices) {
    return await navigator.mediaDevices.selectAudioOutput(options);
  }
  return options;
}

async function setSinkId({deviceId, label = defaultSpeakerLabel}) {
  if (deviceId == video.sinkId) return;
//  console.log(`Switching output to ${label}`);
  await video.setSinkId(deviceId);
  localStorage.speakers = deviceId;
  localStorage.speakersLabel = label;
}

camOn.onclick = async () => {
  try {
    if (camOn.checked && !video.srcObject?.getVideoTracks().length) {
      const stream = await getUserMedia({video: {deviceId: localStorage.video}});
      video.srcObject = new MediaStream([stream.getVideoTracks()[0], ...(video.srcObject?.getAudioTracks() || [])]);
    }
    const track = video.srcObject?.getVideoTracks()?.[0];
    if (track) track.enabled = camOn.checked;
  } catch (e) {
    console.log(e);
  } finally {
    await updateSelectors();
  }
};

micOn.onclick = async () => {
  try {
    if (micOn.checked && !video.srcObject?.getAudioTracks().length) {
      const stream = spectrum(await getUserMedia({audio: {deviceId: localStorage.audio}}));
      if (localStorage.speakers) {
        await setSinkId(await selectAudioOutput({deviceId: localStorage.speakers, label: localStorage.speakersLabel}));
      }
      video.srcObject = new MediaStream([stream.getAudioTracks()[0], ...(video.srcObject?.getVideoTracks() || [])]);
    }
    const track = video.srcObject?.getAudioTracks()?.[0];
    if (track) track.enabled = micOn.checked;
  } catch (e) {
    console.log(e);
  } finally {
    await updateSelectors();
  }
};

halt.onclick = () => {
  for (const track of video.srcObject?.getTracks() || []) {
    track.stop();
  }
  video.srcObject = null;
  camOn.checked = micOn.checked = false;
  camOn.onchange();
  micOn.onchange();
  div.innerHTML = "";
}

/* helper to map ON → icon , OFF → icon-slash */
function setIcon(toggleEl, iconEl, base) {
  iconEl.className = `fa-solid ${base}${toggleEl.checked ? '' : '-slash'}`;
}

setIcon(camOn, camIcon, 'fa-video');
setIcon(micOn, micIcon, 'fa-microphone');
camOn.onchange = () => setIcon(camOn, camIcon, 'fa-video');
micOn.onchange = () => setIcon(micOn, micIcon, 'fa-microphone');


async function replaceUserMedia(constraints, ...oldTracks) {
  try {
    const stream = await getUserMedia(constraints);
    for (const track of oldTracks) {
      track.stop();
    }
    return stream;
  } catch (e) {
    if (e.name != "NotReadableError") throw e;
    for (const track of oldTracks) {
      track.stop();
    }
    return await getUserMedia(constraints);
  }
}

microphone.onchange = async () => {
  try {
    const [oldTrack] = video.srcObject.getAudioTracks();
    const [newTrack] = (await replaceUserMedia({audio: {deviceId: {exact: microphone.value}}}, oldTrack)).getAudioTracks();
    video.srcObject = spectrum(new MediaStream([newTrack, ...video.srcObject.getVideoTracks()]));
  } catch (e) {
    console.log(e);
    await updateSelectors();
  }
};

camera.onchange = async () => {
  try {
    const [oldTrack] = video.srcObject.getVideoTracks();
    const [newTrack] = (await replaceUserMedia({video: {deviceId: {exact: camera.value}}}, oldTrack)).getVideoTracks();
    video.srcObject = new MediaStream([newTrack, ...video.srcObject.getAudioTracks()]);
  } catch (e) {
    console.log(e);
    await updateSelectors();
  }
};

async function resetSpeakers() {
  try {
    await setSinkId({deviceId: ""});
    speakers.value = [...speakers.children].find(({value}) => value == "default")? "default" : "";
  } catch (e) {
    console.log(e);
  }
};

speakers.onchange = async () => {
  try {
    let label = "", deviceId = speakers.value;

    for (const option of speakers.options) {
      if (speakers.value == option.value) label = option.innerText;
    }
    localStorage.speakers = deviceId;
    localStorage.speakersLabel = label;
    await setSinkId({deviceId, label});
  } catch (e) {
    console.log(e);
  } finally {
    await updateSelectors();
  }
};

navigator.mediaDevices.ondevicechange = async () => {
  try {
    const devices = await navigator.mediaDevices.enumerateDevices();
    if (!devices.find(({deviceId}) => deviceId == video.sinkId)) {
      resetSpeakers();
    }

    const camCount = camera.childElementCount;
    const micCount = microphone.childElementCount;
    const spkCount = speakers.childElementCount;
    await updateSelectors();
//    if (camera.childElementCount > camCount) console.log("New camera available");
//    if (microphone.childElementCount > micCount) console.log("New microphone available");
//    if (speakers.childElementCount > spkCount) console.log("New speakers available");
  } catch (e) {
    console.log(e);
  }
}

async function updateSelectors() {
  try {
    const selectedIds = (video.srcObject?.getTracks() || []).map(t => t.getSettings().deviceId);
    if (video.sinkId) {
      selectedIds.push(video.sinkId);
    }
    const devices = await navigator.mediaDevices.enumerateDevices();

    for (const [s, type, kind, name] of [[camera, "video", "videoinput", "Camera"],
                                         [microphone, "audio", "audioinput", "Microphone"],
                                         [speakers, "speakers", "audiooutput", "Speakers"]]) {
      let old = s.value;
      while (s.firstChild) s.removeChild(s.firstChild);
      let i = 0;
      for (const device of devices) {
        if (device.kind != kind) continue;
        const option = document.createElement('option');
        option.value = device.deviceId;
        i++;
        const match = device.deviceId == localStorage[type];
        option.text = device.label || (match && localStorage[type+"Label"]) || `${name} ${i}`;
        if (match) old = option.value;
        s.appendChild(option);
      }
      if (kind == "audiooutput") {
        if (!speakers.children.length || speakers.children[0].value != "default") {
          const option = document.createElement('option');
          option.value = "";
          option.text = defaultSpeakerLabel;
          speakers.insertBefore(option, speakers.children[0]);
        }
        if (!speakers.children.length && localStorage.speakers?.length) {
          const option = document.createElement('option');
          option.value = localStorage.speakers;
          option.text = localStorage.speakersLabel;
          speakers.appendChild(option);
          speakers.value = option.value;
        }
      }
      if ([...s.options].map(({value}) => value).includes(old)) s.value = old;
      for (const option of s.options) {
        if (selectedIds.includes(option.value)) s.value = option.value;
      }
    }
  } catch (e) {
    console.log(e);
  }
}
updateSelectors();

function spectrum(stream) {
  const audioCtx = new AudioContext();
  const analyser = audioCtx.createAnalyser();
  audioCtx.createMediaStreamSource(stream).connect(analyser);
  const ctx = canvas.getContext("2d");
  const data = new Uint8Array(canvas.width);
  ctx.strokeStyle = 'rgb(0, 125, 0)';

  const interval = setInterval(() => {
    ctx.fillStyle = "#a0a0a0";
    ctx.fillRect(0, 0, canvas.width, canvas.height);

    analyser.getByteFrequencyData(data);
    ctx.lineWidth = 2;
    let x = 0;
    for (let d of data) {
      const y = canvas.height - (d / 128) * canvas.height / 4;
      const c = Math.floor((x*255)/canvas.width);
      ctx.fillStyle = `rgb(${c},0,${255-x})`;
      ctx.fillRect(x++, y, 2, canvas.height - y)
    }

    analyser.getByteTimeDomainData(data);
    ctx.lineWidth = 5;
    ctx.beginPath();
    x = 0;
    for (let d of data) {
      const y = canvas.height - (d / 128) * canvas.height / 2;
      x ? ctx.lineTo(x++, y) : ctx.moveTo(x++, y);
    }
    ctx.stroke();
  }, 1000 * canvas.width / audioCtx.sampleRate);

  const cleanup = () => {
    audioCtx.close();
    clearInterval(interval);
    ctx.fillStyle = "#a0a0a0";
    ctx.fillRect(0, 0, canvas.width, canvas.height);
  };
  const [track] = stream.getAudioTracks();
  track.addEventListener("ended", cleanup, {once: true});
  track.stop_ = track.stop;
  track.stop = () => track.stop_(cleanup());
  return stream;
};
</script>
</html>