feat: WebUI main dashboard (Issue #630) #637

Merged
sl-jetson merged 1 commits from sl-webui/issue-630-main-dashboard into main 2026-03-15 16:30:01 -04:00
3 changed files with 1147 additions and 1144 deletions

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/* dashboard.css — Saltybot Main Dashboard (Issue #630) */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
--bg0: #050510;
--bg1: #070712;
--bg2: #0a0a1a;
--bd: #0c2a3a;
--bd2: #1e3a5f;
--dim: #374151;
--mid: #6b7280;
--base: #9ca3af;
--hi: #d1d5db;
--cyan: #06b6d4;
--green: #22c55e;
--amber: #f59e0b;
--red: #ef4444;
}
html, body {
height: 100%;
font-family: 'Courier New', Courier, monospace;
font-size: 12px;
background: var(--bg0);
color: var(--base);
display: flex;
flex-direction: column;
overflow: hidden;
}
/* ══════════════════ TOP BAR ══════════════════ */
#topbar {
display: flex;
align-items: center;
gap: 10px;
padding: 6px 14px;
background: var(--bg1);
border-bottom: 1px solid var(--bd);
flex-shrink: 0;
flex-wrap: wrap;
}
#topbar-left {
display: flex;
align-items: baseline;
gap: 8px;
flex-shrink: 0;
}
.logo {
color: #f97316;
font-weight: bold;
letter-spacing: .18em;
font-size: 14px;
}
#robot-name {
color: var(--mid);
font-size: 10px;
letter-spacing: .12em;
}
#topbar-status {
display: flex;
align-items: center;
gap: 0;
flex: 1;
min-width: 0;
flex-wrap: wrap;
gap: 2px;
}
.stat-block {
display: flex;
align-items: center;
gap: 5px;
padding: 2px 10px;
}
.stat-icon { font-size: 14px; flex-shrink: 0; }
.stat-body { display: flex; flex-direction: column; gap: 1px; }
.stat-label {
font-size: 8px;
color: var(--dim);
letter-spacing: .1em;
text-transform: uppercase;
}
.stat-val {
font-size: 11px;
color: var(--hi);
font-family: monospace;
white-space: nowrap;
}
.stat-sep {
width: 1px;
height: 28px;
background: var(--bd);
flex-shrink: 0;
}
/* Battery bar */
.batt-bar {
width: 28px;
height: 12px;
border: 1px solid var(--bd2);
border-radius: 2px;
overflow: hidden;
position: relative;
background: var(--bg0);
}
.batt-bar::after {
content: '';
position: absolute;
right: -3px; top: 3px;
width: 3px; height: 6px;
background: var(--bd2);
border-radius: 0 1px 1px 0;
}
#batt-fill {
height: 100%;
width: 0%;
background: var(--green);
transition: width .5s, background .5s;
}
#topbar-right {
display: flex;
align-items: center;
gap: 6px;
flex-shrink: 0;
margin-left: auto;
}
#conn-dot {
width: 8px; height: 8px; border-radius: 50%;
background: var(--dim); flex-shrink: 0;
transition: background .3s;
}
#conn-dot.connected { background: var(--green); }
#conn-dot.error { background: var(--red); animation: blink 1s infinite; }
#conn-label {
font-size: 10px;
color: var(--mid);
white-space: nowrap;
}
#ws-input {
background: var(--bg2); border: 1px solid var(--bd2); border-radius: 4px;
color: #67e8f9; padding: 2px 7px; font-family: monospace; font-size: 11px;
width: 175px;
}
#ws-input:focus { outline: none; border-color: var(--cyan); }
.hbtn {
padding: 2px 8px; border-radius: 4px; border: 1px solid var(--bd2);
background: var(--bg2); color: #67e8f9; font-family: monospace;
font-size: 10px; font-weight: bold; cursor: pointer; transition: background .15s;
white-space: nowrap;
}
.hbtn:hover { background: #0e4f69; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.5} }
/* ══════════════════ MAIN / GRID ══════════════════ */
#main {
flex: 1;
display: flex;
flex-direction: column;
overflow-y: auto;
padding: 16px;
gap: 12px;
min-height: 0;
}
/* Auto-detect bar */
#detect-bar {
display: flex;
align-items: center;
gap: 10px;
padding: 6px 12px;
background: var(--bg2);
border: 1px solid var(--bd2);
border-radius: 6px;
font-size: 10px;
color: var(--mid);
flex-shrink: 0;
}
#detect-bar.connected {
border-color: #14532d;
color: var(--green);
background: #020f06;
}
#detect-bar.error {
border-color: #7f1d1d;
color: var(--red);
}
#detect-status { flex: 1; }
#detect-dots { display: flex; gap: 4px; }
.detect-dot {
width: 6px; height: 6px; border-radius: 50%;
background: var(--dim);
transition: background .3s;
}
.detect-dot.trying { background: var(--amber); animation: pulse .7s infinite; }
.detect-dot.ok { background: var(--green); }
.detect-dot.fail { background: var(--red); }
/* Panel grid */
#grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
gap: 12px;
}
/* Panel card */
.panel-card {
display: flex;
flex-direction: column;
gap: 8px;
padding: 14px;
background: var(--bg2);
border: 1px solid var(--bd2);
border-radius: 10px;
text-decoration: none;
color: inherit;
cursor: pointer;
transition: border-color .2s, background .2s, transform .1s;
position: relative;
overflow: hidden;
}
.panel-card::before {
content: '';
position: absolute;
inset: 0;
background: radial-gradient(ellipse at top left, rgba(6,182,212,.04), transparent 60%);
pointer-events: none;
}
.panel-card:hover {
border-color: var(--cyan);
background: #0a0a1e;
transform: translateY(-1px);
}
.panel-card:active { transform: translateY(0); }
.card-header {
display: flex;
align-items: center;
gap: 10px;
}
.card-icon { font-size: 24px; flex-shrink: 0; }
.card-title {
font-size: 12px;
font-weight: bold;
letter-spacing: .12em;
color: var(--hi);
text-transform: uppercase;
}
.card-sub { font-size: 9px; color: var(--dim); }
.card-dot {
width: 9px; height: 9px; border-radius: 50%;
background: var(--dim);
margin-left: auto;
flex-shrink: 0;
transition: background .3s;
}
.card-dot.live { background: var(--green); }
.card-dot.idle { background: var(--amber); }
.card-dot.config { background: var(--mid); }
.card-desc {
font-size: 10px;
color: var(--mid);
line-height: 1.5;
}
.card-topics {
display: flex;
flex-wrap: wrap;
gap: 4px;
}
.card-topics code {
font-size: 8px;
color: #4b5563;
background: var(--bg0);
border: 1px solid var(--bd);
border-radius: 2px;
padding: 1px 4px;
}
.card-footer {
display: flex;
align-items: center;
justify-content: space-between;
border-top: 1px solid var(--bd);
padding-top: 6px;
margin-top: auto;
}
.card-status {
font-size: 9px;
font-weight: bold;
letter-spacing: .1em;
color: var(--dim);
}
.card-status.live { color: var(--green); }
.card-status.idle { color: var(--amber); }
.card-msg { font-size: 9px; color: var(--dim); font-family: monospace; }
/* Estop active state on card */
.panel-card.estop-flash {
border-color: var(--red) !important;
animation: blink .6s infinite;
}
/* Info strip */
#info-strip {
display: flex;
align-items: center;
gap: 0;
padding: 6px 12px;
background: var(--bg2);
border: 1px solid var(--bd);
border-radius: 6px;
flex-shrink: 0;
flex-wrap: wrap;
}
.info-item {
display: flex;
align-items: center;
gap: 6px;
padding: 0 14px;
border-right: 1px solid var(--bd);
}
.info-item:first-child { padding-left: 0; }
.info-item:last-child { border-right: none; }
.info-lbl { font-size: 8px; color: var(--dim); letter-spacing: .1em; }
.info-val { font-size: 10px; color: var(--hi); font-family: monospace; }
/* ══════════════════ BOTTOM BAR ══════════════════ */
#bottombar {
display: flex;
align-items: center;
padding: 6px 14px;
background: var(--bg1);
border-top: 1px solid var(--bd);
flex-shrink: 0;
gap: 12px;
flex-wrap: wrap;
}
#bottombar-left { display: flex; gap: 8px; align-items: center; }
.estop-btn {
padding: 5px 18px;
border-radius: 5px;
border: 2px solid #7f1d1d;
background: #1c0505;
color: #fca5a5;
font-family: monospace;
font-size: 11px;
font-weight: bold;
cursor: pointer;
letter-spacing: .08em;
transition: background .15s, border-color .15s;
}
.estop-btn:hover { background: #3b0606; border-color: var(--red); }
.estop-btn.active {
background: #7f1d1d;
border-color: var(--red);
color: #fff;
animation: blink .7s infinite;
}
.resume-btn {
padding: 5px 14px;
border-radius: 5px;
border: 1px solid #14532d;
background: #052010;
color: #86efac;
font-family: monospace;
font-size: 11px;
font-weight: bold;
cursor: pointer;
transition: background .15s;
}
.resume-btn:hover { background: #0a3a1a; }
#bottombar-center {
display: flex;
align-items: center;
gap: 8px;
flex: 1;
}
.bb-lbl { font-size: 9px; color: var(--dim); letter-spacing: .1em; flex-shrink: 0; }
#mode-btns { display: flex; gap: 4px; }
.mode-btn {
padding: 3px 10px;
border-radius: 4px;
border: 1px solid var(--bd2);
background: var(--bg2);
color: var(--mid);
font-family: monospace;
font-size: 10px;
font-weight: bold;
cursor: pointer;
letter-spacing: .08em;
transition: background .15s, color .15s, border-color .15s;
}
.mode-btn:hover { background: #0e4f69; color: var(--hi); }
.mode-btn.active { background: #0e4f69; border-color: var(--cyan); color: #fff; }
#bottombar-right {
display: flex;
align-items: center;
gap: 10px;
margin-left: auto;
}
#uptime-display { display: flex; align-items: center; gap: 6px; }
#session-time { font-size: 11px; color: var(--mid); font-family: monospace; }
/* ══════════════════ RESPONSIVE ══════════════════ */
@media (max-width: 700px) {
#topbar-status { display: none; }
#grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
#grid { grid-template-columns: 1fr; }
#mode-btns .mode-btn:nth-child(n+3) { display: none; }
}

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/* dashboard.js — Saltybot Main Dashboard (Issue #630) */
'use strict';
// ── Auto-detect candidates ─────────────────────────────────────────────────
// Try current page's hostname first (if served from robot), then localhost
const AUTO_CANDIDATES = (() => {
const candidates = [];
if (location.hostname && location.hostname !== '' && location.hostname !== 'localhost') {
candidates.push(`ws://${location.hostname}:9090`);
}
candidates.push('ws://localhost:9090');
candidates.push('ws://saltybot.local:9090');
return candidates;
})();
// ── Panel definitions (status tracking) ───────────────────────────────────
const PANELS = [
{ id: 'map', watchTopic: '/saltybot/pose/fused', msgType: 'geometry_msgs/PoseStamped' },
{ id: 'gamepad', watchTopic: null, msgType: null }, // output only
{ id: 'diag', watchTopic: '/diagnostics', msgType: 'diagnostic_msgs/DiagnosticArray' },
{ id: 'events', watchTopic: '/rosout', msgType: 'rcl_interfaces/msg/Log' },
{ id: 'settings', watchTopic: null, msgType: null }, // service-based
{ id: 'gimbal', watchTopic: '/gimbal/state', msgType: 'geometry_msgs/Vector3' },
];
// ── State ──────────────────────────────────────────────────────────────────
const state = {
connected: false,
estop: false,
driveMode: 'MANUAL',
battery: null, // 0..100 %
voltage: null,
safetyState: null, // 'CLEAR' | 'WARN' | 'DANGER' | 'ESTOP'
closestM: null,
uptime: 0, // seconds since ROS connection
sessionStart: null, // Date for session timer
msgCount: 0,
lastMsgTs: 0,
msgRate: 0,
latency: null,
// Per-panel last-message timestamps
panelTs: {},
};
// ── ROS ────────────────────────────────────────────────────────────────────
let ros = null;
let cmdVelTopic = null;
let modeTopic = null;
let uptimeInterval = null;
let panelWatches = {}; // id → ROSLIB.Topic
let pingTs = 0;
let pingTimeout = null;
function connect(url) {
if (ros) {
Object.values(panelWatches).forEach(t => { try { t.unsubscribe(); } catch(_){} });
panelWatches = {};
try { ros.close(); } catch(_){}
}
ros = new ROSLIB.Ros({ url });
ros.on('connection', () => {
state.connected = true;
state.sessionStart = state.sessionStart || new Date();
localStorage.setItem('dashboard_ws_url', url);
$connDot.className = 'connected';
$connLabel.style.color = '#22c55e';
$connLabel.textContent = 'Connected';
$wsInput.value = url;
document.getElementById('info-ws').textContent = url;
setupTopics();
schedulePing();
updateDetectBar('connected', `Connected to ${url}`);
});
ros.on('error', () => {
state.connected = false;
$connDot.className = 'error';
$connLabel.style.color = '#ef4444';
$connLabel.textContent = 'Error';
updateDetectBar('error', `Error connecting to ${url}`);
});
ros.on('close', () => {
state.connected = false;
$connDot.className = '';
$connLabel.style.color = '#6b7280';
$connLabel.textContent = 'Disconnected';
});
}
function setupTopics() {
// ── Battery & temps from /diagnostics ──
const diagTopic = new ROSLIB.Topic({
ros, name: '/diagnostics',
messageType: 'diagnostic_msgs/DiagnosticArray',
throttle_rate: 2000,
});
diagTopic.subscribe(msg => {
state.msgCount++;
state.lastMsgTs = performance.now();
(msg.status || []).forEach(s => {
(s.values || []).forEach(kv => {
if (kv.key === 'battery_voltage_v') {
state.voltage = parseFloat(kv.value);
// 4S LiPo: 12.0V empty, 16.8V full
state.battery = Math.max(0, Math.min(100,
((state.voltage - 12.0) / (16.8 - 12.0)) * 100));
}
if (kv.key === 'battery_soc_pct') {
state.battery = parseFloat(kv.value);
}
});
});
markPanelLive('diag');
renderBattery();
});
// ── Safety zone ──
const safetyTopic = new ROSLIB.Topic({
ros, name: '/saltybot/safety_zone/status',
messageType: 'std_msgs/String',
throttle_rate: 500,
});
safetyTopic.subscribe(msg => {
state.msgCount++;
try {
const d = JSON.parse(msg.data);
state.safetyState = d.state || d.fwd_zone || 'CLEAR';
state.closestM = d.closest_m != null ? d.closest_m : null;
if (d.estop !== undefined) {
// only auto-latch E-stop if ROS says it's active and we aren't tracking it locally
if (d.estop && !state.estop) activateEstop(false);
}
} catch(_) {
state.safetyState = msg.data;
}
renderSafety();
});
// ── Balance state / drive mode ──
const modeSub = new ROSLIB.Topic({
ros, name: '/saltybot/balance_state',
messageType: 'std_msgs/String',
throttle_rate: 1000,
});
modeSub.subscribe(msg => {
try {
const d = JSON.parse(msg.data);
if (d.mode) {
state.driveMode = d.mode.toUpperCase();
renderMode();
}
} catch(_) {}
});
// ── Pose (for map card liveness) ──
const poseTopic = new ROSLIB.Topic({
ros, name: '/saltybot/pose/fused',
messageType: 'geometry_msgs/PoseStamped',
throttle_rate: 1000,
});
poseTopic.subscribe(() => { markPanelLive('map'); });
// ── /rosout (for events card) ──
const rosoutTopic = new ROSLIB.Topic({
ros, name: '/rosout',
messageType: 'rcl_interfaces/msg/Log',
throttle_rate: 2000,
});
rosoutTopic.subscribe(() => { markPanelLive('events'); });
// ── Gimbal state ──
const gimbalTopic = new ROSLIB.Topic({
ros, name: '/gimbal/state',
messageType: 'geometry_msgs/Vector3',
throttle_rate: 1000,
});
gimbalTopic.subscribe(() => { markPanelLive('gimbal'); });
// ── cmd_vel monitor (for gamepad card liveness) ──
const cmdVelWatch = new ROSLIB.Topic({
ros, name: '/cmd_vel',
messageType: 'geometry_msgs/Twist',
throttle_rate: 500,
});
cmdVelWatch.subscribe(() => { markPanelLive('gamepad'); });
// ── Publisher topics ──
cmdVelTopic = new ROSLIB.Topic({
ros, name: '/cmd_vel',
messageType: 'geometry_msgs/Twist',
});
modeTopic = new ROSLIB.Topic({
ros, name: '/saltybot/drive_mode',
messageType: 'std_msgs/String',
});
// ── Robot uptime from /diagnostics or fallback to /rosapi ──
const upSvc = new ROSLIB.Service({
ros, name: '/rosapi/get_time',
serviceType: 'rosapi/GetTime',
});
upSvc.callService({}, () => {
state.uptime = 0;
if (uptimeInterval) clearInterval(uptimeInterval);
uptimeInterval = setInterval(() => { state.uptime++; renderUptime(); }, 1000);
});
}
// ── E-stop ─────────────────────────────────────────────────────────────────
function activateEstop(sendCmd = true) {
state.estop = true;
if (sendCmd && cmdVelTopic) {
cmdVelTopic.publish(new ROSLIB.Message({
linear: { x: 0, y: 0, z: 0 }, angular: { x: 0, y: 0, z: 0 },
}));
}
document.getElementById('btn-estop').style.display = 'none';
document.getElementById('btn-resume').style.display = '';
document.getElementById('btn-estop').classList.add('active');
document.getElementById('val-estop').textContent = 'ACTIVE';
document.getElementById('val-estop').style.color = '#ef4444';
// Flash all cards
document.querySelectorAll('.panel-card').forEach(c => c.classList.add('estop-flash'));
}
function resumeFromEstop() {
state.estop = false;
document.getElementById('btn-estop').style.display = '';
document.getElementById('btn-resume').style.display = 'none';
document.getElementById('btn-estop').classList.remove('active');
document.getElementById('val-estop').textContent = 'OFF';
document.getElementById('val-estop').style.color = '#6b7280';
document.querySelectorAll('.panel-card').forEach(c => c.classList.remove('estop-flash'));
}
document.getElementById('btn-estop').addEventListener('click', () => activateEstop(true));
document.getElementById('btn-resume').addEventListener('click', resumeFromEstop);
// Space bar = emergency E-stop from dashboard
document.addEventListener('keydown', e => {
if (e.code === 'Space' && e.target.tagName !== 'INPUT') {
e.preventDefault();
if (state.estop) resumeFromEstop(); else activateEstop(true);
}
});
// ── Drive mode buttons ─────────────────────────────────────────────────────
document.querySelectorAll('.mode-btn').forEach(btn => {
btn.addEventListener('click', () => {
state.driveMode = btn.dataset.mode;
if (modeTopic) {
modeTopic.publish(new ROSLIB.Message({ data: state.driveMode }));
}
renderMode();
});
});
// ── Panel liveness tracking ────────────────────────────────────────────────
const LIVE_TIMEOUT_MS = 5000;
function markPanelLive(id) {
state.panelTs[id] = Date.now();
renderPanelCard(id);
}
function renderPanelCard(id) {
const ts = state.panelTs[id];
const dot = document.getElementById(`dot-${id}`);
const statusEl = document.getElementById(`status-${id}`);
const msgEl = document.getElementById(`msg-${id}`);
if (!dot || !statusEl) return;
if (!state.connected) {
dot.className = 'card-dot';
statusEl.className = 'card-status';
statusEl.textContent = 'OFFLINE';
if (msgEl) msgEl.textContent = 'Not connected';
return;
}
// Settings card is always config
if (id === 'settings') return;
// Gamepad is output only — show "READY" when connected
if (id === 'gamepad') {
const age = ts ? Date.now() - ts : Infinity;
if (age < LIVE_TIMEOUT_MS) {
dot.className = 'card-dot live';
statusEl.className = 'card-status live';
statusEl.textContent = 'ACTIVE';
if (msgEl) msgEl.textContent = 'Receiving /cmd_vel';
} else {
dot.className = 'card-dot';
statusEl.className = 'card-status';
statusEl.textContent = 'READY';
if (msgEl) msgEl.textContent = 'Awaiting input';
}
return;
}
if (!ts) {
dot.className = 'card-dot idle';
statusEl.className = 'card-status idle';
statusEl.textContent = 'IDLE';
if (msgEl) msgEl.textContent = 'No messages yet';
return;
}
const age = Date.now() - ts;
if (age < LIVE_TIMEOUT_MS) {
dot.className = 'card-dot live';
statusEl.className = 'card-status live';
statusEl.textContent = 'LIVE';
if (msgEl) msgEl.textContent = `${(age / 1000).toFixed(1)}s ago`;
} else {
dot.className = 'card-dot idle';
statusEl.className = 'card-status idle';
statusEl.textContent = 'IDLE';
if (msgEl) msgEl.textContent = `${Math.floor(age / 1000)}s ago`;
}
}
// ── Render helpers ─────────────────────────────────────────────────────────
function renderBattery() {
const el = document.getElementById('val-battery');
const fill = document.getElementById('batt-fill');
if (state.battery === null) { el.textContent = '—'; return; }
const pct = state.battery.toFixed(0);
el.textContent = `${pct}%${state.voltage ? ' · ' + state.voltage.toFixed(1) + 'V' : ''}`;
fill.style.width = pct + '%';
fill.style.background = pct > 50 ? '#22c55e' : pct > 20 ? '#f59e0b' : '#ef4444';
el.style.color = pct > 50 ? '#d1d5db' : pct > 20 ? '#f59e0b' : '#ef4444';
}
function renderSafety() {
const el = document.getElementById('val-safety');
if (!state.safetyState) { el.textContent = '—'; return; }
const s = state.safetyState.toUpperCase();
el.textContent = s + (state.closestM != null ? ` · ${state.closestM.toFixed(2)}m` : '');
el.style.color = s === 'DANGER' || s === 'ESTOP' ? '#ef4444' :
s === 'WARN' ? '#f59e0b' : '#22c55e';
}
function renderMode() {
document.getElementById('val-mode').textContent = state.driveMode;
document.querySelectorAll('.mode-btn').forEach(b => {
b.classList.toggle('active', b.dataset.mode === state.driveMode);
});
}
function renderUptime() {
const el = document.getElementById('val-uptime');
if (!state.connected) { el.textContent = '—'; return; }
const s = state.uptime;
el.textContent = s < 60 ? `${s}s` : s < 3600 ? `${Math.floor(s/60)}m ${s%60}s` : `${Math.floor(s/3600)}h ${Math.floor((s%3600)/60)}m`;
}
function renderSession() {
if (!state.sessionStart) return;
const secs = Math.floor((Date.now() - state.sessionStart) / 1000);
const h = String(Math.floor(secs / 3600)).padStart(2, '0');
const m = String(Math.floor((secs % 3600) / 60)).padStart(2, '0');
const s = String(secs % 60).padStart(2, '0');
document.getElementById('session-time').textContent = `${h}:${m}:${s}`;
}
function renderMsgRate() {
const now = performance.now();
if (state.lastMsgTs) {
const dt = (now - state.lastMsgTs) / 1000;
document.getElementById('info-rate').textContent =
dt < 10 ? Math.round(1 / dt) + ' msg/s' : '—';
}
}
// ── Latency ping ───────────────────────────────────────────────────────────
function schedulePing() {
if (pingTimeout) clearTimeout(pingTimeout);
pingTimeout = setTimeout(() => {
if (!ros || !state.connected) return;
const svc = new ROSLIB.Service({ ros, name: '/rosapi/get_time', serviceType: 'rosapi/GetTime' });
pingTs = performance.now();
svc.callService({}, () => {
state.latency = Math.round(performance.now() - pingTs);
document.getElementById('info-latency').textContent = state.latency + ' ms';
document.getElementById('info-ip').textContent = $wsInput.value.replace('ws://','').split(':')[0];
schedulePing();
}, () => { schedulePing(); });
}, 5000);
}
// ── Auto-detect ────────────────────────────────────────────────────────────
const $detectStatus = document.getElementById('detect-status');
const $detectDots = document.getElementById('detect-dots');
const $detectBar = document.getElementById('detect-bar');
function updateDetectBar(cls, msg) {
$detectBar.className = cls;
$detectStatus.textContent = msg;
}
function buildDetectDots() {
$detectDots.innerHTML = AUTO_CANDIDATES.map((_, i) =>
`<div class="detect-dot" id="ddot-${i}"></div>`
).join('');
}
function tryAutoDetect(idx) {
if (idx >= AUTO_CANDIDATES.length) {
updateDetectBar('error', '✗ Auto-detect failed — enter URL manually');
return;
}
const url = AUTO_CANDIDATES[idx];
const dot = document.getElementById(`ddot-${idx}`);
if (dot) dot.className = 'detect-dot trying';
updateDetectBar('', `🔍 Trying ${url}`);
const testRos = new ROSLIB.Ros({ url });
const timer = setTimeout(() => {
testRos.close();
if (dot) dot.className = 'detect-dot fail';
tryAutoDetect(idx + 1);
}, 2000);
testRos.on('connection', () => {
clearTimeout(timer);
if (dot) dot.className = 'detect-dot ok';
// Mark remaining as skipped
for (let j = idx + 1; j < AUTO_CANDIDATES.length; j++) {
const d = document.getElementById(`ddot-${j}`);
if (d) d.className = 'detect-dot';
}
testRos.close();
// Connect for real
connect(url);
});
testRos.on('error', () => {
clearTimeout(timer);
if (dot) dot.className = 'detect-dot fail';
tryAutoDetect(idx + 1);
});
}
// ── Connection bar ─────────────────────────────────────────────────────────
const $connDot = document.getElementById('conn-dot');
const $connLabel = document.getElementById('conn-label');
const $wsInput = document.getElementById('ws-input');
document.getElementById('btn-connect').addEventListener('click', () => {
connect($wsInput.value.trim() || 'ws://localhost:9090');
});
// ── Liveness refresh loop ──────────────────────────────────────────────────
setInterval(() => {
PANELS.forEach(p => renderPanelCard(p.id));
renderMsgRate();
renderSession();
}, 1000);
// ── Session timer ──────────────────────────────────────────────────────────
state.sessionStart = new Date();
setInterval(renderSession, 1000);
// ── Init ───────────────────────────────────────────────────────────────────
buildDetectDots();
// Restore saved URL or auto-detect
const savedUrl = localStorage.getItem('dashboard_ws_url');
if (savedUrl) {
$wsInput.value = savedUrl;
updateDetectBar('', `⟳ Reconnecting to ${savedUrl}`);
connect(savedUrl);
} else {
tryAutoDetect(0);
}

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