index.html
| 1 | <!doctype html> |
| 2 | <html lang="en" data-theme="dark"> |
| 3 | <head> |
| 4 | <meta charset="utf-8"> |
| 5 | <meta name="viewport" content="width=device-width, initial-scale=1"> |
| 6 | <title>WebRTC Tool</title> |
| 7 | <script> |
| 8 | /* Responsive viewport with a soft minimum: render at the real device width |
| 9 | when there's enough room (≥ MIN_WIDTH CSS px), otherwise lock the layout |
| 10 | viewport to MIN_WIDTH so a narrow device scales the page down to fit |
| 11 | instead of breaking layout. Re-runs on rotation / window resize so a |
| 12 | phone that lands above the threshold in landscape gets the responsive |
| 13 | layout there. */ |
| 14 | (function () { |
| 15 | var MIN_WIDTH = 500; |
| 16 | var meta = document.querySelector('meta[name="viewport"]'); |
| 17 | var responsive = 'width=device-width, initial-scale=1'; |
| 18 | function update() { |
| 19 | /* `screen.width` reflects the physical device width in CSS pixels and |
| 20 | tracks orientation on every modern browser. It's independent of the |
| 21 | current viewport meta, so we can safely use it to *decide* whether |
| 22 | to switch viewports without feedback loops. */ |
| 23 | var w = (window.screen && window.screen.width) || window.innerWidth; |
| 24 | var want = w < MIN_WIDTH ? 'width=' + MIN_WIDTH : responsive; |
| 25 | if (meta.getAttribute('content') !== want) meta.setAttribute('content', want); |
| 26 | } |
| 27 | update(); |
| 28 | window.addEventListener('resize', update); |
| 29 | window.addEventListener('orientationchange', update); |
| 30 | })(); |
| 31 | </script> |
| 32 | <style> |
| 33 | :root { |
| 34 | --bg: #0d1117; |
| 35 | --bg-elev: #161b22; |
| 36 | --bg-elev-2: #1f2630; |
| 37 | --border: #30363d; |
| 38 | --border-strong: #484f58; |
| 39 | --text: #e6edf3; |
| 40 | --text-dim: #8b949e; |
| 41 | --text-faint: #6e7681; |
| 42 | --accent: #2f81f7; |
| 43 | --accent-fg: #ffffff; |
| 44 | --ok: #3fb950; |
| 45 | --warn: #d29922; |
| 46 | --err: #f85149; |
| 47 | --shadow: 0 8px 24px rgba(0,0,0,0.5); |
| 48 | --radius: 10px; |
| 49 | --radius-sm: 6px; |
| 50 | --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace; |
| 51 | --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; |
| 52 | } |
| 53 | html[data-theme="light"] { |
| 54 | --bg: #ffffff; |
| 55 | --bg-elev: #f6f8fa; |
| 56 | --bg-elev-2: #eaeef2; |
| 57 | --border: #d0d7de; |
| 58 | --border-strong: #afb8c1; |
| 59 | --text: #1f2328; |
| 60 | --text-dim: #59636e; |
| 61 | --text-faint: #818b98; |
| 62 | --accent: #0969da; |
| 63 | --accent-fg: #ffffff; |
| 64 | --ok: #1a7f37; |
| 65 | --warn: #9a6700; |
| 66 | --err: #cf222e; |
| 67 | --shadow: 0 8px 24px rgba(140,149,159,0.2); |
| 68 | } |
| 69 | * { box-sizing: border-box; } |
| 70 | html, body { height: 100%; margin: 0; overflow: hidden; } |
| 71 | body { |
| 72 | background: var(--bg); |
| 73 | color: var(--text); |
| 74 | font-family: var(--sans); |
| 75 | font-size: 14px; |
| 76 | line-height: 1.5; |
| 77 | -webkit-font-smoothing: antialiased; |
| 78 | } |
| 79 | a { color: var(--accent); } |
| 80 | code, kbd, pre { font-family: var(--mono); font-size: 12.5px; } |
| 81 | button { |
| 82 | font-family: inherit; |
| 83 | font-size: inherit; |
| 84 | background: var(--bg-elev-2); |
| 85 | color: var(--text); |
| 86 | border: 1px solid var(--border); |
| 87 | border-radius: var(--radius-sm); |
| 88 | padding: 7px 14px; |
| 89 | cursor: pointer; |
| 90 | transition: background 120ms, border-color 120ms, transform 80ms; |
| 91 | } |
| 92 | button:hover { background: var(--bg-elev); border-color: var(--border-strong); } |
| 93 | button:active { transform: translateY(1px); } |
| 94 | button:disabled { opacity: 0.5; cursor: not-allowed; } |
| 95 | /* Firefox adds an invisible inner border/padding to buttons via the |
| 96 | ::-moz-focus-inner pseudo-element that shrinks the usable content box |
| 97 | and makes our buttons render visibly smaller than in Chromium. */ |
| 98 | button::-moz-focus-inner { border: 0; padding: 0; } |
| 99 | button.primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; } |
| 100 | button.primary:hover { filter: brightness(1.1); } |
| 101 | button.danger { background: var(--err); color: white; border-color: transparent; } |
| 102 | button.danger:hover { filter: brightness(1.1); } |
| 103 | button.ghost { background: transparent; } |
| 104 | button.icon { padding: 7px 10px; } |
| 105 | input[type="text"], input[type="number"], input[type="url"], select, textarea { |
| 106 | font-family: inherit; |
| 107 | font-size: inherit; |
| 108 | background: var(--bg); |
| 109 | color: var(--text); |
| 110 | border: 1px solid var(--border); |
| 111 | border-radius: var(--radius-sm); |
| 112 | padding: 7px 10px; |
| 113 | outline: none; |
| 114 | transition: border-color 120ms; |
| 115 | } |
| 116 | input:focus, select:focus, textarea:focus { border-color: var(--accent); } |
| 117 | textarea { display: block; width: 100%; font-family: var(--mono); font-size: 12.5px; resize: vertical; min-height: 110px; } |
| 118 | label.row { display: flex; align-items: center; gap: 8px; padding: 4px 0; } |
| 119 | label.row input[type="checkbox"] { accent-color: var(--accent); } |
| 120 | label.field { display: block; margin-bottom: 12px; } |
| 121 | label.field > span { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 4px; } |
| 122 | .hidden { display: none !important; } |
| 123 | |
| 124 | /* Inline icon: inherits the surrounding text color, doesn't shrink in flex |
| 125 | rows, never hijacks pointer events from its parent button. */ |
| 126 | .ic { flex: none; display: inline-block; vertical-align: middle; pointer-events: none; } |
| 127 | |
| 128 | /* Layout — body never scrolls; each view either scrolls internally |
| 129 | (welcome/configure/exchange) or is overflow:hidden (call). */ |
| 130 | #app { height: 100%; display: flex; flex-direction: column; overflow: hidden; } |
| 131 | .view { flex: 1; min-height: 0; display: flex; flex-direction: column; } |
| 132 | .view.hidden { display: none; } |
| 133 | #view-welcome, #view-sdp-inspect { overflow-y: auto; } |
| 134 | |
| 135 | /* SDP inspector */ |
| 136 | .sdp-section { background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; margin-bottom: 14px; } |
| 137 | .sdp-section > .sdp-head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; margin-bottom: 8px; } |
| 138 | .sdp-section > .sdp-head h3 { margin: 0; text-transform: none; letter-spacing: 0; font-size: 14px; color: var(--text); } |
| 139 | .sdp-section > .sdp-head .sdp-sub { color: var(--text-dim); font-size: 12px; font-family: var(--mono); } |
| 140 | .sdp-kv { display: grid; grid-template-columns: 170px 1fr; gap: 4px 12px; font-size: 13px; } |
| 141 | .sdp-kv .k { color: var(--text-dim); } |
| 142 | .sdp-kv .v { font-family: var(--mono); word-break: break-all; } |
| 143 | .sdp-kv .v.code { font-family: var(--mono); } |
| 144 | .sdp-help { color: var(--text-dim); font-size: 12px; margin: 6px 0 0; font-style: italic; } |
| 145 | .sdp-list { list-style: none; padding: 0; margin: 6px 0 0; display: grid; gap: 4px; font-size: 12.5px; font-family: var(--mono); } |
| 146 | .sdp-list li { padding: 4px 8px; border-radius: var(--radius-sm); background: var(--bg-elev-2); } |
| 147 | .sdp-list li .tag { display: inline-block; min-width: 36px; padding: 0 6px; border-radius: 8px; background: var(--bg-elev); color: var(--text-dim); margin-right: 8px; text-align: center; } |
| 148 | .sdp-list li .badge { display: inline-block; padding: 0 6px; border-radius: 8px; font-size: 11px; margin-left: 6px; background: rgba(99,158,255,0.12); color: var(--accent); } |
| 149 | .sdp-list li .dim { color: var(--text-dim); } |
| 150 | details.sdp-rawblock { margin-top: 12px; } |
| 151 | details.sdp-rawblock > summary { font-size: 12px; color: var(--text-dim); cursor: pointer; user-select: none; } |
| 152 | details.sdp-rawblock pre { margin: 8px 0 0; padding: 10px; background: var(--bg-elev-2); border-radius: var(--radius-sm); font-size: 12px; white-space: pre-wrap; word-break: break-word; } |
| 153 | .topbar { |
| 154 | min-height: 48px; flex: none; |
| 155 | display: flex; align-items: center; justify-content: space-between; |
| 156 | gap: 8px; |
| 157 | padding: 6px 16px; |
| 158 | border-bottom: 1px solid var(--border); |
| 159 | background: var(--bg-elev); |
| 160 | } |
| 161 | .topbar .brand { font-weight: 600; letter-spacing: 0.2px; min-width: 0; } |
| 162 | .topbar .brand small { color: var(--text-faint); font-weight: 400; margin-left: 8px; } |
| 163 | .topbar .right { display: flex; gap: 6px; align-items: center; flex-shrink: 0; } |
| 164 | /* Theme toggle shows the current theme: moon in dark mode, sun in light. */ |
| 165 | html[data-theme="light"] #theme-toggle .theme-icon-moon { display: none; } |
| 166 | html:not([data-theme="light"]) #theme-toggle .theme-icon-sun { display: none; } |
| 167 | @media (max-width: 720px) { |
| 168 | .topbar { padding: 6px 10px; } |
| 169 | } |
| 170 | .role-badge { |
| 171 | display: inline-block; padding: 2px 8px; border-radius: 12px; |
| 172 | background: var(--bg-elev-2); color: var(--text-dim); |
| 173 | font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; |
| 174 | } |
| 175 | .role-badge.initiator { background: rgba(47,129,247,0.15); color: var(--accent); } |
| 176 | .role-badge.joiner { background: rgba(63,185,80,0.15); color: var(--ok); } |
| 177 | .role-badge.loopback { background: rgba(210,153,34,0.15); color: var(--warn); } |
| 178 | |
| 179 | .container { max-width: 880px; width: 100%; margin: 0 auto; padding: 32px 24px; } |
| 180 | .container.wide { max-width: 1280px; } |
| 181 | h1 { font-size: 24px; margin: 0 0 8px; } |
| 182 | h2 { font-size: 16px; margin: 24px 0 12px; padding-bottom: 6px; border-bottom: 1px solid var(--border); } |
| 183 | h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-dim); margin: 16px 0 8px; } |
| 184 | .lede { color: var(--text-dim); margin-bottom: 24px; } |
| 185 | .card { |
| 186 | background: var(--bg-elev); |
| 187 | border: 1px solid var(--border); |
| 188 | border-radius: var(--radius); |
| 189 | padding: 18px; |
| 190 | margin-bottom: 16px; |
| 191 | } |
| 192 | .card h2:first-child { margin-top: 0; } |
| 193 | details { margin-bottom: 16px; } |
| 194 | details > summary { cursor: pointer; padding: 10px 14px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-sm); user-select: none; } |
| 195 | details[open] > summary { border-bottom-left-radius: 0; border-bottom-right-radius: 0; } |
| 196 | details > .details-body { border: 1px solid var(--border); border-top: none; border-radius: 0 0 var(--radius-sm) var(--radius-sm); padding: 14px; background: var(--bg-elev); } |
| 197 | |
| 198 | /* Collapsible card: <details class="card card-collapsible"> */ |
| 199 | details.card-collapsible { padding: 0; margin-bottom: 16px; background: var(--bg-elev); } |
| 200 | details.card-collapsible > summary { |
| 201 | list-style: none; |
| 202 | cursor: pointer; |
| 203 | padding: 14px 18px; |
| 204 | user-select: none; |
| 205 | display: flex; |
| 206 | align-items: center; |
| 207 | gap: 10px; |
| 208 | background: transparent; |
| 209 | border: none; |
| 210 | border-radius: var(--radius); |
| 211 | } |
| 212 | details.card-collapsible > summary::-webkit-details-marker { display: none; } |
| 213 | details.card-collapsible > summary::before { |
| 214 | content: ''; |
| 215 | width: 12px; height: 12px; |
| 216 | background: var(--text-dim); |
| 217 | -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='9 6 15 12 9 18'/></svg>") center/contain no-repeat; |
| 218 | mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='9 6 15 12 9 18'/></svg>") center/contain no-repeat; |
| 219 | flex: none; |
| 220 | transition: transform 120ms ease; |
| 221 | } |
| 222 | details.card-collapsible[open] > summary::before { transform: rotate(90deg); } |
| 223 | details.card-collapsible > summary h2 { |
| 224 | margin: 0; |
| 225 | padding: 0; |
| 226 | border-bottom: 0; |
| 227 | display: inline-block; |
| 228 | } |
| 229 | details.card-collapsible[open] > summary { |
| 230 | border-bottom: 1px solid var(--border); |
| 231 | border-radius: var(--radius) var(--radius) 0 0; |
| 232 | } |
| 233 | details.card-collapsible > .card-body { padding: 14px 18px 18px; } |
| 234 | |
| 235 | /* Prominent room code "hero" callout. */ |
| 236 | .room-code-hero { |
| 237 | background: rgba(47,129,247,0.08); |
| 238 | border: 1px solid rgba(47,129,247,0.35); |
| 239 | border-radius: var(--radius); |
| 240 | padding: 18px 20px; |
| 241 | margin: 8px 0 4px; |
| 242 | } |
| 243 | .room-code-hero .hero-label { |
| 244 | display: block; |
| 245 | font-size: 12px; |
| 246 | font-weight: 600; |
| 247 | color: var(--accent); |
| 248 | text-transform: uppercase; |
| 249 | letter-spacing: 0.6px; |
| 250 | margin-bottom: 10px; |
| 251 | } |
| 252 | .room-code-input-row { display: flex; gap: 8px; align-items: stretch; } |
| 253 | .room-code-input-row input { |
| 254 | flex: 1; |
| 255 | font-family: var(--mono); |
| 256 | font-size: 15px; |
| 257 | font-weight: 600; |
| 258 | padding: 9px 12px; |
| 259 | letter-spacing: 0.5px; |
| 260 | text-transform: lowercase; |
| 261 | background: var(--bg); |
| 262 | } |
| 263 | .room-code-input-row button { |
| 264 | padding: 0 14px; |
| 265 | font-size: 16px; |
| 266 | background: var(--bg); |
| 267 | } |
| 268 | .room-code-hero .hero-help { margin: 10px 0 0; font-size: 12px; color: var(--text-dim); } |
| 269 | .room-code-hero .hero-help code { background: rgba(47,129,247,0.12); padding: 1px 4px; border-radius: 3px; } |
| 270 | |
| 271 | .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; } |
| 272 | .opus-list { display: flex; flex-direction: column; gap: 14px; } |
| 273 | .opus-item { display: flex; flex-direction: column; gap: 2px; } |
| 274 | .opus-item > .small { margin: 0 0 0 22px; color: var(--text-dim); } |
| 275 | .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; } |
| 276 | @media (max-width: 720px) { |
| 277 | .grid-2, .grid-3 { grid-template-columns: 1fr; } |
| 278 | } |
| 279 | .actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 16px; } |
| 280 | .role-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 16px; } |
| 281 | .role-picker button { |
| 282 | padding: 22px; |
| 283 | text-align: left; |
| 284 | border-radius: var(--radius); |
| 285 | border: 1px solid var(--border); |
| 286 | background: var(--bg-elev); |
| 287 | display: flex; flex-direction: column; gap: 6px; |
| 288 | transition: border-color 120ms, transform 120ms; |
| 289 | } |
| 290 | .role-picker button:hover { border-color: var(--accent); transform: translateY(-1px); } |
| 291 | .role-picker .role-title { font-size: 16px; font-weight: 600; } |
| 292 | .role-picker .role-desc { color: var(--text-dim); font-size: 13px; } |
| 293 | .role-picker .role-loopback { grid-column: 1 / -1; } |
| 294 | |
| 295 | /* Two-option segmented toggle (signaling mode). */ |
| 296 | .seg-toggle { display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; margin: 4px 0 10px; } |
| 297 | .seg-toggle button { |
| 298 | border: none; border-radius: 0; background: transparent; color: var(--text-dim); |
| 299 | padding: 8px 14px; font-weight: 500; |
| 300 | } |
| 301 | .seg-toggle button + button { border-left: 1px solid var(--border); } |
| 302 | .seg-toggle button.active { background: rgba(47,129,247,0.15); color: var(--accent); } |
| 303 | .seg-toggle button:hover:not(.active) { background: var(--bg-elev-2); } |
| 304 | |
| 305 | .ice-row { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 8px; margin-bottom: 6px; } |
| 306 | .ice-row input { width: 100%; } |
| 307 | @media (max-width: 720px) { .ice-row { grid-template-columns: 1fr; } } |
| 308 | |
| 309 | .blob-area { display: flex; flex-direction: column; gap: 8px; } |
| 310 | .blob-area textarea { min-height: 180px; } |
| 311 | .blob-controls { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 10px; } |
| 312 | .pill { padding: 2px 8px; border-radius: 12px; font-size: 11px; background: var(--bg-elev-2); color: var(--text-dim); } |
| 313 | .pill:empty { display: none; } |
| 314 | .pill.ok { background: rgba(63,185,80,0.15); color: var(--ok); } |
| 315 | .pill.warn { background: rgba(210,153,34,0.15); color: var(--warn); } |
| 316 | .pill.err { background: rgba(248,81,73,0.15); color: var(--err); } |
| 317 | |
| 318 | .progress { height: 6px; background: var(--bg-elev-2); border-radius: 3px; overflow: hidden; margin: 8px 0; } |
| 319 | .progress > div { height: 100%; background: var(--accent); width: 0%; transition: width 200ms ease; } |
| 320 | |
| 321 | /* Call view — flex:1 inside #app fills viewport minus the topbar; nothing |
| 322 | scrolls except internal panes (chat log, files list, settings, stats). */ |
| 323 | #view-call { display: flex; flex-direction: column; overflow: hidden; min-height: 0; } |
| 324 | .call-body { |
| 325 | flex: 1; min-height: 0; min-width: 0; |
| 326 | display: grid; |
| 327 | grid-template-columns: 1fr 360px; |
| 328 | grid-template-rows: minmax(0, 1fr); |
| 329 | overflow: hidden; |
| 330 | } |
| 331 | @media (max-width: 900px) { |
| 332 | .call-body { grid-template-columns: 1fr; grid-template-rows: minmax(0, 1fr) minmax(0, 1fr); } |
| 333 | } |
| 334 | /* Conference grid: a vertical stack of flex rows. App.tiles.relayout picks |
| 335 | the rows × cols that maximises tile area for the current container and |
| 336 | tile count, then partitions tiles into row containers and sets row |
| 337 | height + tile width inline. Each row centres its tiles, so an incomplete |
| 338 | last row (e.g. 3 tiles in a 2-col layout) is centred instead of |
| 339 | left-aligned. All tiles always visible; no scroll. */ |
| 340 | .video-area { |
| 341 | background: #000; |
| 342 | position: relative; |
| 343 | display: flex; |
| 344 | flex-direction: column; |
| 345 | justify-content: center; |
| 346 | align-items: center; |
| 347 | gap: 8px; |
| 348 | padding: 12px; |
| 349 | min-height: 0; |
| 350 | min-width: 0; |
| 351 | overflow: hidden; |
| 352 | } |
| 353 | .video-row { |
| 354 | display: flex; |
| 355 | flex-direction: row; |
| 356 | justify-content: center; |
| 357 | gap: 8px; |
| 358 | /* height set inline by relayout */ |
| 359 | } |
| 360 | .video-tile { |
| 361 | position: relative; |
| 362 | background: #050608; |
| 363 | border-radius: var(--radius); |
| 364 | overflow: hidden; |
| 365 | display: flex; align-items: center; justify-content: center; |
| 366 | flex: none; |
| 367 | min-width: 0; min-height: 0; |
| 368 | height: 100%; |
| 369 | /* width set inline by relayout */ |
| 370 | } |
| 371 | .video-tile > video { width: 100%; height: 100%; object-fit: contain; background: #050608; display: block; } |
| 372 | .video-tile > .vid-pip { display: none; } /* PIP video is inside .pip wrapper, not direct child */ |
| 373 | /* Per-peer audio element sits invisibly inside the tile so its lifetime |
| 374 | matches the peer's. Hidden but autoplay still works. */ |
| 375 | .video-tile > audio.audio-remote { display: none; } |
| 376 | .video-tile .leave-peer { |
| 377 | position: absolute; top: 6px; right: 6px; |
| 378 | background: rgba(0,0,0,0.55); color: white; |
| 379 | border: none; border-radius: 4px; |
| 380 | width: 22px; height: 22px; padding: 0; |
| 381 | cursor: pointer; opacity: 0; transition: opacity 120ms; |
| 382 | display: flex; align-items: center; justify-content: center; |
| 383 | z-index: 3; |
| 384 | } |
| 385 | .video-tile:hover .leave-peer { opacity: 1; } |
| 386 | .video-tile .leave-peer:hover { background: var(--err); } |
| 387 | .video-tile .conn-pill { |
| 388 | position: absolute; top: 6px; left: 6px; |
| 389 | background: rgba(0,0,0,0.55); color: white; |
| 390 | padding: 2px 8px; border-radius: 10px; |
| 391 | font-size: 10px; letter-spacing: 0.3px; |
| 392 | pointer-events: none; |
| 393 | } |
| 394 | .video-tile .conn-pill.connected { background: rgba(63,185,80,0.55); } |
| 395 | .video-tile .conn-pill.connecting, |
| 396 | .video-tile .conn-pill.new { background: rgba(210,153,34,0.55); } |
| 397 | .video-tile .conn-pill.failed, |
| 398 | .video-tile .conn-pill.disconnected, |
| 399 | .video-tile .conn-pill.closed { background: rgba(248,81,73,0.55); } |
| 400 | .video-tile .conn-pill.connected { display: none; } /* hide once steady */ |
| 401 | |
| 402 | /* In-call banner shown when there are no peers yet. Sits between the |
| 403 | topbar and call-body, full-width, dismisses permanently on first join. */ |
| 404 | .call-banner { |
| 405 | flex: none; |
| 406 | display: flex; align-items: center; justify-content: center; gap: 12px; |
| 407 | padding: 10px 16px; |
| 408 | background: rgba(47,129,247,0.10); |
| 409 | border-bottom: 1px solid rgba(47,129,247,0.30); |
| 410 | color: var(--text); |
| 411 | font-size: 13px; |
| 412 | } |
| 413 | .call-banner.hidden { display: none; } |
| 414 | .call-banner button { padding: 6px 12px; } |
| 415 | |
| 416 | /* Add Participant dialog reuses the role-picker styles but in compact |
| 417 | form (smaller padding, single column). */ |
| 418 | .role-picker.compact { grid-template-columns: 1fr; gap: 8px; margin-top: 8px; } |
| 419 | .role-picker.compact button { padding: 12px 14px; } |
| 420 | .role-picker.compact .role-title { font-size: 14px; } |
| 421 | .role-picker.compact .role-desc { font-size: 12px; } |
| 422 | .video-tile.screen > video { cursor: zoom-in; } |
| 423 | .video-tile.screen > video:fullscreen { cursor: zoom-out; } |
| 424 | .video-tile .tile-label { |
| 425 | position: absolute; left: 8px; bottom: 8px; |
| 426 | background: rgba(0,0,0,0.55); color: white; |
| 427 | padding: 3px 8px; border-radius: 12px; font-size: 11px; |
| 428 | letter-spacing: 0.4px; |
| 429 | pointer-events: none; |
| 430 | } |
| 431 | .video-tile .empty-state { |
| 432 | position: absolute; inset: 0; |
| 433 | display: none; align-items: center; justify-content: center; |
| 434 | color: var(--text-faint); |
| 435 | pointer-events: none; |
| 436 | } |
| 437 | .video-tile.empty .empty-state { display: flex; } |
| 438 | .video-tile.empty > video { display: none; } |
| 439 | .video-tile .mic-muted { |
| 440 | position: absolute; |
| 441 | bottom: 8px; right: 8px; |
| 442 | background: rgba(0,0,0,0.55); |
| 443 | color: white; |
| 444 | border-radius: 50%; |
| 445 | width: 28px; height: 28px; |
| 446 | display: flex; align-items: center; justify-content: center; |
| 447 | pointer-events: none; |
| 448 | z-index: 2; |
| 449 | } |
| 450 | /* When a PIP is visible in the bottom-right corner, move the mic-muted |
| 451 | badge to the top-right so they don't overlap. */ |
| 452 | .video-tile:has(.pip:not(.hidden)) .mic-muted { bottom: auto; top: 8px; } |
| 453 | .video-tile .mic-muted.hidden { display: none; } |
| 454 | .video-tile .pip { |
| 455 | position: absolute; |
| 456 | right: 10px; bottom: 10px; |
| 457 | width: 22%; max-width: 200px; min-width: 120px; |
| 458 | aspect-ratio: 16 / 9; |
| 459 | border-radius: 6px; |
| 460 | overflow: hidden; |
| 461 | background: #050608; |
| 462 | border: 1px solid rgba(255,255,255,0.15); |
| 463 | box-shadow: 0 4px 12px rgba(0,0,0,0.5); |
| 464 | z-index: 1; |
| 465 | } |
| 466 | .video-tile .pip.hidden { display: none; } |
| 467 | .video-tile .pip video { width: 100%; height: 100%; object-fit: cover; background: #050608; display: block; } |
| 468 | @media (max-width: 900px) { |
| 469 | .video-area { /* layout still computed in JS */ } |
| 470 | } |
| 471 | |
| 472 | .sidebar { background: var(--bg-elev); border-left: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; min-width: 0; overflow: hidden; } |
| 473 | .tabs { display: flex; border-bottom: 1px solid var(--border); } |
| 474 | .tabs button { |
| 475 | flex: 1; |
| 476 | border: none; |
| 477 | background: transparent; |
| 478 | border-radius: 0; |
| 479 | border-bottom: 2px solid transparent; |
| 480 | padding: 12px 10px; |
| 481 | color: var(--text-dim); |
| 482 | } |
| 483 | .tabs button.active { color: var(--text); border-bottom-color: var(--accent); } |
| 484 | .tab-pane { flex: 1; overflow-y: auto; padding: 14px; min-height: 0; display: none; } |
| 485 | .tab-pane.active { display: flex; flex-direction: column; } |
| 486 | |
| 487 | .toolbar { |
| 488 | flex: none; |
| 489 | display: flex; gap: 8px; justify-content: center; align-items: center; |
| 490 | flex-wrap: wrap; |
| 491 | padding: 10px 16px; |
| 492 | background: var(--bg-elev); |
| 493 | border-top: 1px solid var(--border); |
| 494 | } |
| 495 | .toolbar button { padding: 0 16px; height: 40px; min-width: 44px; display: flex; align-items: center; justify-content: center; gap: 6px; line-height: 1; } |
| 496 | .toolbar button > * { line-height: 1; } |
| 497 | .toolbar #tb-mic, .toolbar #tb-cam, .toolbar #tb-screen { min-width: 140px; } |
| 498 | .toolbar .spacer { flex: 1; } |
| 499 | .toolbar button.on { background: rgba(47,129,247,0.15); border-color: var(--accent); color: var(--accent); } |
| 500 | .toolbar button.off { background: rgba(248,81,73,0.12); border-color: var(--err); color: var(--err); } |
| 501 | |
| 502 | /* Device picker: chevron sits flush next to its primary toolbar button. */ |
| 503 | .toolbar .device-picker { position: relative; display: flex; gap: 2px; } |
| 504 | .toolbar .device-chevron { min-width: 28px; padding: 0 6px; } |
| 505 | .toolbar .device-chevron::before { |
| 506 | content: ''; |
| 507 | width: 12px; height: 12px; |
| 508 | background: currentColor; |
| 509 | -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='18 15 12 9 6 15'/></svg>") center/contain no-repeat; |
| 510 | mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='18 15 12 9 6 15'/></svg>") center/contain no-repeat; |
| 511 | transition: transform 120ms ease; |
| 512 | } |
| 513 | .toolbar .device-chevron[aria-expanded="true"]::before { transform: rotate(180deg); } |
| 514 | .toolbar .device-chevron[aria-expanded="true"] { background: rgba(47,129,247,0.15); border-color: var(--accent); color: var(--accent); } |
| 515 | .device-menu { |
| 516 | position: absolute; bottom: calc(100% + 6px); left: 0; |
| 517 | min-width: 240px; max-width: min(360px, calc(100vw - 24px)); |
| 518 | max-height: 50vh; overflow: auto; |
| 519 | background: var(--bg-elev); border: 1px solid var(--border); border-radius: 6px; |
| 520 | padding: 6px; z-index: 50; |
| 521 | box-shadow: 0 8px 24px rgba(0,0,0,0.4); |
| 522 | display: flex; flex-direction: column; gap: 2px; |
| 523 | } |
| 524 | .device-menu.hidden { display: none; } |
| 525 | .device-menu .device-row { |
| 526 | display: flex; align-items: center; gap: 8px; |
| 527 | padding: 6px 8px; border-radius: 4px; cursor: pointer; |
| 528 | font-size: 13px; line-height: 1.3; |
| 529 | } |
| 530 | .device-menu .device-row:hover { background: rgba(255,255,255,0.05); } |
| 531 | .device-menu .device-row input { margin: 0; flex: none; } |
| 532 | .device-menu .device-row .device-label { flex: 1; word-break: break-word; } |
| 533 | .device-menu .device-row .device-active { |
| 534 | color: var(--accent); font-size: 11px; flex: none; |
| 535 | display: inline-flex; align-items: center; gap: 4px; |
| 536 | } |
| 537 | .device-menu .device-empty { padding: 6px 8px; font-size: 12px; font-style: italic; color: var(--muted, #888); } |
| 538 | @media (max-width: 720px) { |
| 539 | /* Drop the spacer so the row collapses to its content, shrink button |
| 540 | padding/widths so all five buttons fit on one line at 500 px wide. */ |
| 541 | .toolbar { padding: 8px 10px; gap: 6px; } |
| 542 | .toolbar .spacer { display: none; } |
| 543 | .toolbar button { padding: 0 10px; } |
| 544 | .toolbar #tb-mic, .toolbar #tb-cam, .toolbar #tb-screen { min-width: 0; } |
| 545 | .toolbar .device-chevron { min-width: 24px; padding: 0 4px; } |
| 546 | } |
| 547 | |
| 548 | /* Chat */ |
| 549 | .chat-log { flex: 1; overflow: auto; padding-right: 4px; display: flex; flex-direction: column; gap: 8px; min-height: 0; } |
| 550 | .chat-msg { padding: 8px 10px; border-radius: var(--radius-sm); background: var(--bg-elev-2); max-width: 80%; word-wrap: break-word; } |
| 551 | .chat-msg.me { align-self: flex-end; background: rgba(47,129,247,0.15); } |
| 552 | .chat-msg .meta { font-size: 10px; color: var(--text-faint); margin-top: 3px; } |
| 553 | .chat-input { display: flex; gap: 6px; margin-top: 8px; } |
| 554 | .chat-input input { flex: 1; } |
| 555 | .chat-counter { color: var(--text-faint); margin-top: 4px; text-align: right; font-variant-numeric: tabular-nums; } |
| 556 | .chat-counter.over { color: var(--err); } |
| 557 | |
| 558 | /* Files */ |
| 559 | .files-drop { |
| 560 | border: 2px dashed var(--border-strong); |
| 561 | border-radius: var(--radius); |
| 562 | padding: 18px; |
| 563 | text-align: center; |
| 564 | color: var(--text-dim); |
| 565 | margin-bottom: 12px; |
| 566 | transition: border-color 120ms, background 120ms; |
| 567 | } |
| 568 | .files-drop.over { border-color: var(--accent); background: rgba(47,129,247,0.06); } |
| 569 | .files-drop.disabled { opacity: 0.5; pointer-events: none; } |
| 570 | .files-section-head { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; } |
| 571 | .files-section-head h3 { margin: 0; } |
| 572 | .file-item { position: relative; padding: 8px 28px 8px 10px; background: var(--bg-elev-2); border-radius: var(--radius-sm); margin-bottom: 6px; font-size: 12px; } |
| 573 | .file-item .name { font-weight: 500; } |
| 574 | .file-item .meta { color: var(--text-dim); font-size: 11px; } |
| 575 | .file-item .row-close { |
| 576 | position: absolute; top: 4px; right: 4px; |
| 577 | background: transparent; border: none; color: var(--text-faint); |
| 578 | width: 22px; height: 22px; padding: 0; border-radius: 4px; |
| 579 | cursor: pointer; font-size: 14px; line-height: 1; |
| 580 | } |
| 581 | .file-item .row-close:hover { background: var(--bg-elev); color: var(--text); } |
| 582 | .file-item .req-actions { display: flex; gap: 6px; margin-top: 6px; } |
| 583 | .file-item .req-actions button { |
| 584 | border: 1px solid var(--border); border-radius: 4px; padding: 3px 12px; |
| 585 | font-size: 12px; cursor: pointer; |
| 586 | } |
| 587 | .file-item .req-actions .btn-accept { background: var(--accent); color: #fff; border-color: var(--accent); } |
| 588 | .file-item .req-actions .btn-deny { background: transparent; color: var(--text-dim); } |
| 589 | .file-item .req-actions button:hover { filter: brightness(1.1); } |
| 590 | |
| 591 | /* Stats */ |
| 592 | .stats-table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; } |
| 593 | .stats-table td { padding: 4px 6px; border-bottom: 1px solid var(--border); } |
| 594 | .stats-table td:first-child { color: var(--text-dim); width: 45%; } |
| 595 | .stats-head { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; } |
| 596 | .stats-head h3 { margin: 0; flex: none; font-size: 14px; } |
| 597 | .stats-head select { flex: 1; min-width: 0; } |
| 598 | |
| 599 | /* Recipient chip bar (chat + files) */ |
| 600 | .recipients { |
| 601 | display: flex; flex-wrap: wrap; align-items: center; gap: 4px; |
| 602 | margin: 6px 0 4px; padding: 4px 0; |
| 603 | font-size: 11.5px; color: var(--text-dim); |
| 604 | } |
| 605 | .recipients .label { color: var(--text-faint); margin-right: 4px; } |
| 606 | .recipients .chip { |
| 607 | display: inline-flex; align-items: center; |
| 608 | padding: 2px 8px; border-radius: 999px; |
| 609 | background: var(--bg-elev-2); border: 1px solid var(--border); |
| 610 | color: var(--text-dim); |
| 611 | cursor: pointer; user-select: none; |
| 612 | transition: background 80ms, border-color 80ms, color 80ms; |
| 613 | font-size: 11px; |
| 614 | } |
| 615 | .recipients .chip.on { background: rgba(47,129,247,0.18); border-color: var(--accent); color: var(--text); } |
| 616 | .recipients .chip:hover { background: var(--bg-elev); } |
| 617 | .recipients .chip.on:hover { filter: brightness(1.15); } |
| 618 | .recipients .empty { color: var(--text-faint); font-style: italic; } |
| 619 | |
| 620 | /* Delivery popup (chat message click) */ |
| 621 | .chat-msg.has-detail { cursor: pointer; } |
| 622 | .chat-msg .detail { |
| 623 | display: none; |
| 624 | margin-top: 6px; padding-top: 6px; |
| 625 | border-top: 1px solid var(--border); |
| 626 | font-size: 10.5px; color: var(--text-dim); |
| 627 | } |
| 628 | .chat-msg .detail .row { display: flex; justify-content: space-between; gap: 8px; padding: 1px 0; } |
| 629 | .chat-msg .detail .state { font-variant-numeric: tabular-nums; } |
| 630 | .chat-msg .detail .state.acked { color: var(--ok); } |
| 631 | .chat-msg .detail .state.sent { color: var(--warn); } |
| 632 | .chat-msg .detail .state.failed, |
| 633 | .chat-msg .detail .state.closed { color: var(--err); } |
| 634 | .chat-msg.open .detail { display: block; } |
| 635 | |
| 636 | /* Files row click-detail (per-recipient progress) */ |
| 637 | .file-item.has-detail { cursor: pointer; } |
| 638 | .file-item .detail { |
| 639 | display: none; |
| 640 | margin-top: 6px; padding-top: 6px; |
| 641 | border-top: 1px solid var(--border); |
| 642 | font-size: 10.5px; |
| 643 | } |
| 644 | .file-item .detail .row { display: flex; justify-content: space-between; gap: 8px; padding: 1px 0; } |
| 645 | .file-item .detail .state { font-variant-numeric: tabular-nums; } |
| 646 | .file-item .detail .state.delivered { color: var(--ok); } |
| 647 | .file-item .detail .state.sent { color: var(--ok); } |
| 648 | .file-item .detail .state.sending { color: var(--warn); } |
| 649 | .file-item .detail .state.queued { color: var(--text-dim); } |
| 650 | .file-item .detail .state.failed, |
| 651 | .file-item .detail .state.closed, |
| 652 | .file-item .detail .state.cancelled { color: var(--err); } |
| 653 | .file-item.open .detail { display: block; } |
| 654 | |
| 655 | /* Welcome: freestanding Start block (no card chrome). The input and the |
| 656 | Start button sit side-by-side and stretch to a matching height. */ |
| 657 | .welcome-start { margin: 24px 0 32px; max-width: 520px; } |
| 658 | .welcome-start label.field { margin-bottom: 8px; } |
| 659 | .welcome-start-row { |
| 660 | display: flex; |
| 661 | gap: 8px; |
| 662 | align-items: stretch; |
| 663 | } |
| 664 | .welcome-start-row > input { |
| 665 | flex: 1; |
| 666 | min-width: 0; |
| 667 | font-size: 16px; |
| 668 | padding: 10px 14px; |
| 669 | } |
| 670 | .welcome-start-btn { |
| 671 | flex: none; |
| 672 | font-size: 16px; |
| 673 | padding: 10px 22px; |
| 674 | line-height: 1.4; |
| 675 | } |
| 676 | |
| 677 | /* Settings: per-peer target picker */ |
| 678 | .settings-target { |
| 679 | background: var(--bg-elev-2); |
| 680 | border: 1px solid var(--border); |
| 681 | border-radius: var(--radius-sm); |
| 682 | padding: 8px 10px; |
| 683 | margin: 24px 0 14px; |
| 684 | } |
| 685 | .settings-target label.field { margin-bottom: 0; } |
| 686 | .settings-target .small { margin-top: 4px; } |
| 687 | |
| 688 | /* Modal dialog (native <dialog>) — used for peer-left notification. */ |
| 689 | dialog { |
| 690 | background: var(--bg-elev); |
| 691 | color: var(--text); |
| 692 | border: 1px solid var(--border-strong); |
| 693 | border-radius: var(--radius); |
| 694 | padding: 22px 24px; |
| 695 | max-width: 420px; |
| 696 | box-shadow: 0 12px 40px rgba(0,0,0,0.5); |
| 697 | } |
| 698 | dialog::backdrop { background: rgba(0,0,0,0.55); } |
| 699 | dialog h2 { margin: 0 0 8px; padding: 0; border: none; font-size: 17px; } |
| 700 | dialog p { margin: 0 0 16px; color: var(--text-dim); } |
| 701 | .dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; } |
| 702 | /* Wide, scrollable variant of <dialog> for the configure step. */ |
| 703 | dialog.view-modal { |
| 704 | width: min(720px, calc(100vw - 32px)); |
| 705 | max-width: none; |
| 706 | max-height: calc(100vh - 32px); |
| 707 | overflow-y: auto; |
| 708 | padding: 24px 26px; |
| 709 | } |
| 710 | dialog.view-modal h1 { margin: 0 0 8px; padding: 0; border: none; font-size: 22px; } |
| 711 | dialog.view-modal .container { padding: 0; max-width: none; } |
| 712 | .step-dialog-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; } |
| 713 | .step-dialog-head h2 { margin: 0; } |
| 714 | .step-dialog-room { |
| 715 | display: flex; align-items: center; gap: 10px; |
| 716 | margin: 0 0 16px; |
| 717 | padding: 10px 12px; |
| 718 | background: var(--bg-elev-2); |
| 719 | border: 1px solid var(--border); |
| 720 | border-radius: var(--radius-sm); |
| 721 | } |
| 722 | .step-dialog-room.hidden { display: none; } |
| 723 | .step-dialog-room-label { color: var(--text-dim); font-size: 12px; } |
| 724 | .step-dialog-room code { |
| 725 | font-family: var(--mono); font-size: 14px; |
| 726 | color: var(--text); user-select: all; |
| 727 | } |
| 728 | |
| 729 | /* Console drawer — sits below the toolbar inside #view-call so opening it |
| 730 | shrinks the call area instead of overlapping it. */ |
| 731 | #console-drawer { |
| 732 | flex: none; |
| 733 | height: 35vh; min-height: 200px; max-height: 50vh; |
| 734 | background: var(--bg-elev); border-top: 1px solid var(--border-strong); |
| 735 | display: flex; flex-direction: column; |
| 736 | min-width: 0; |
| 737 | } |
| 738 | #console-drawer.hidden { display: none; } |
| 739 | .console-head { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--border); flex-wrap: wrap; } |
| 740 | .console-head .spacer { flex: 1; } |
| 741 | .console-head select { padding: 4px 8px; font-size: 12px; } |
| 742 | .console-head label.small { display: inline-flex; align-items: center; gap: 4px; } |
| 743 | .console-head #console-filter { width: 120px; min-width: 80px; } |
| 744 | @media (max-width: 720px) { |
| 745 | .console-head { padding: 6px 10px; gap: 6px; } |
| 746 | /* Hide the "Level" / "Filter" inline label text — the dropdown and the |
| 747 | placeholder make the controls self-evident. */ |
| 748 | .console-head label.small { font-size: 0; } |
| 749 | .console-head label.small > * { font-size: 12px; } |
| 750 | .console-head #console-filter { width: 100px; } |
| 751 | } |
| 752 | .console-body { flex: 1; overflow: auto; padding: 6px 12px; font-family: var(--mono); font-size: 11px; } |
| 753 | .log-line { padding: 2px 0; white-space: pre-wrap; word-break: break-word; } |
| 754 | .log-line .ts { color: var(--text-faint); margin-right: 6px; } |
| 755 | .log-line .lvl { display: inline-block; min-width: 34px; padding: 0 5px; border-radius: 3px; margin-right: 6px; font-size: 9px; text-align: center; } |
| 756 | .log-line.debug .lvl { background: var(--bg-elev-2); color: var(--text-dim); } |
| 757 | .log-line.info .lvl { background: rgba(47,129,247,0.15); color: var(--accent); } |
| 758 | .log-line.warn .lvl { background: rgba(210,153,34,0.15); color: var(--warn); } |
| 759 | .log-line.error .lvl { background: rgba(248,81,73,0.15); color: var(--err); } |
| 760 | .log-line .label { color: var(--text-dim); margin-right: 6px; } |
| 761 | |
| 762 | .kbd { font-family: var(--mono); padding: 1px 5px; border-radius: 4px; background: var(--bg-elev-2); border: 1px solid var(--border); font-size: 11px; } |
| 763 | .small { font-size: 12px; color: var(--text-dim); } |
| 764 | .nowrap { white-space: nowrap; } |
| 765 | .mono { font-family: var(--mono); } |
| 766 | |
| 767 | /* Inline progress (Continue to signaling, Apply offer) */ |
| 768 | .progress-row { |
| 769 | display: flex; align-items: center; gap: 10px; |
| 770 | margin-top: 12px; |
| 771 | padding: 10px 12px; |
| 772 | background: var(--bg-elev); |
| 773 | border: 1px solid var(--border); |
| 774 | border-radius: var(--radius-sm); |
| 775 | color: var(--text); |
| 776 | font-size: 13px; |
| 777 | } |
| 778 | .progress-row.hidden { display: none; } |
| 779 | .spinner { |
| 780 | width: 14px; height: 14px; flex: none; |
| 781 | border: 2px solid var(--border-strong); |
| 782 | border-top-color: var(--accent); |
| 783 | border-radius: 50%; |
| 784 | animation: spin 0.8s linear infinite; |
| 785 | } |
| 786 | @keyframes spin { to { transform: rotate(360deg); } } |
| 787 | .progress-row .sub { color: var(--text-dim); font-size: 12px; } |
| 788 | |
| 789 | /* Insecure-context warning */ |
| 790 | .warn-banner { |
| 791 | margin-bottom: 16px; |
| 792 | padding: 12px 14px; |
| 793 | background: rgba(210,153,34,0.1); |
| 794 | border: 1px solid rgba(210,153,34,0.4); |
| 795 | border-radius: var(--radius-sm); |
| 796 | color: var(--warn); |
| 797 | font-size: 13px; |
| 798 | } |
| 799 | .warn-banner.hidden { display: none; } |
| 800 | .warn-banner strong { color: var(--warn); } |
| 801 | |
| 802 | ::-webkit-scrollbar { width: 10px; height: 10px; } |
| 803 | ::-webkit-scrollbar-track { background: transparent; } |
| 804 | ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; } |
| 805 | ::-webkit-scrollbar-thumb:hover { background: var(--border-strong); } |
| 806 | </style> |
| 807 | </head> |
| 808 | <body> |
| 809 | |
| 810 | <main id="app"> |
| 811 | <header class="topbar"> |
| 812 | <div class="brand">WebRTC Tool <small>direct peer-to-peer audio, video, chat, and files</small></div> |
| 813 | <div class="right"> |
| 814 | <span id="role-badge" class="role-badge hidden"></span> |
| 815 | <span id="conn-pill" class="pill">disconnected</span> |
| 816 | <button class="icon" id="theme-toggle" title="Toggle theme" aria-label="Toggle theme"> |
| 817 | <svg class="theme-icon-moon" viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"/></svg> |
| 818 | <svg class="theme-icon-sun" viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="4"/><path d="M12 2v2M12 20v2M4.93 4.93l1.41 1.41M17.66 17.66l1.41 1.41M2 12h2M20 12h2M4.93 19.07l1.41-1.41M17.66 6.34l1.41-1.41"/></svg> |
| 819 | </button> |
| 820 | </div> |
| 821 | </header> |
| 822 | |
| 823 | <!-- ============== WELCOME ============== --> |
| 824 | <section id="view-welcome" class="view"> |
| 825 | <div class="container"> |
| 826 | <h1>WebRTC Tool</h1> |
| 827 | <p class="lede"> |
| 828 | A direct peer-to-peer call tool — a fallback for video, screen share, chat, and file transfer |
| 829 | when your usual conferencing software isn't cooperating. Connect to one or more participants |
| 830 | either via a shared room code (using a small relay server that only shuttles the offer/answer) |
| 831 | or by pasting two short JSON blobs. Browser-only on each end: no install, no account. |
| 832 | </p> |
| 833 | |
| 834 | <div class="welcome-start"> |
| 835 | <label class="field welcome-start-field"> |
| 836 | <span>Your display name</span> |
| 837 | <div class="welcome-start-row"> |
| 838 | <input type="text" id="welcome-username" placeholder="Anonymous" maxlength="64" autocomplete="off" spellcheck="false"> |
| 839 | <button id="welcome-start" class="primary welcome-start-btn">Start call →</button> |
| 840 | </div> |
| 841 | </label> |
| 842 | <p class="small">Shown to other participants in chat and on their video tile. Saved locally; can be changed later from the call's Settings tab.</p> |
| 843 | <p class="small" style="margin-top:6px">Opens an empty call. Invite participants from inside the call (room code or SDP paste).</p> |
| 844 | </div> |
| 845 | |
| 846 | <div class="card"> |
| 847 | <h2>Tools</h2> |
| 848 | <div class="actions"> |
| 849 | <button id="welcome-sdp-inspect" class="ghost">SDP inspector →</button> |
| 850 | </div> |
| 851 | <p class="small">Paste an offer/answer (raw SDP, JSON, or <code>b64:</code>-wrapped) and see it broken down into sections, codecs, ICE candidates, and DTLS info — with short explanations.</p> |
| 852 | </div> |
| 853 | </div> |
| 854 | </section> |
| 855 | |
| 856 | <!-- ============== CONFIGURE ============== --> |
| 857 | <dialog id="view-configure" class="view-modal"> |
| 858 | <div class="container"> |
| 859 | <h1>Configure <span id="role-title-cfg" class="role-badge"></span></h1> |
| 860 | <p class="lede" id="cfg-lede">Set up media and ICE servers, then continue to the signaling step.</p> |
| 861 | |
| 862 | <div id="insecure-warn" class="warn-banner hidden"> |
| 863 | <strong>Insecure context:</strong> |
| 864 | <span id="insecure-warn-text">this page isn't served over HTTPS (or localhost), so the browser will not expose microphone, camera, or screen-share APIs. You can still join the call in listen-only mode and receive the other peer's audio/video, chat, and files.</span> |
| 865 | </div> |
| 866 | |
| 867 | <div class="card" id="signaling-card"> |
| 868 | <h2>Signaling</h2> |
| 869 | <div class="seg-toggle" role="tablist" aria-label="Signaling mode"> |
| 870 | <button type="button" id="sig-mode-auto" role="tab" class="active">Auto via server (room code)</button> |
| 871 | <button type="button" id="sig-mode-manual" role="tab">Manual SDP exchange</button> |
| 872 | </div> |
| 873 | <p class="small hidden" id="sig-help-manual"> |
| 874 | You and your peer copy two JSON blobs (offer and answer) between yourselves through any |
| 875 | channel — email, chat, paper. Nothing leaves the browser except the call itself. Use this when |
| 876 | you don't want to (or can't) run a server, or when you want to inspect the SDP. |
| 877 | </p> |
| 878 | <p class="small" id="sig-help-auto"> |
| 879 | Both peers enter the same short <em>room code</em> on a small relay server that just shuttles |
| 880 | the offer/answer pair. The server never sees media or chat — those still flow peer-to-peer. |
| 881 | Whoever opens the room first becomes the initiator; the second peer joins. The relay holds |
| 882 | each blob for 10 minutes and forgets it after. |
| 883 | </p> |
| 884 | |
| 885 | <div id="sig-auto-fields" class="hidden"> |
| 886 | <div class="room-code-hero"> |
| 887 | <label class="hero-label" for="sig-room-code">Enter a room code to connect</label> |
| 888 | <div class="room-code-input-row"> |
| 889 | <input type="text" id="sig-room-code" placeholder="e.g. blue-fish-42" spellcheck="false" autocomplete="off" maxlength="15"> |
| 890 | <button type="button" id="sig-room-gen" class="ghost" title="Generate a random code"><svg class="ic" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><polyline points="16 3 21 3 21 8"/><line x1="4" y1="20" x2="21" y2="3"/><polyline points="21 16 21 21 16 21"/><line x1="15" y1="15" x2="21" y2="21"/><line x1="4" y1="4" x2="9" y2="9"/></svg></button> |
| 891 | </div> |
| 892 | <p class="hero-help">Any short alphanumeric string (max 15 chars, letters/digits/<code>-_</code>). Share it with your peer through any channel.</p> |
| 893 | </div> |
| 894 | |
| 895 | <label class="field" style="max-width:420px; margin-top:14px"> |
| 896 | <span>Server URL</span> |
| 897 | <div class="row" style="gap:6px; align-items:stretch"> |
| 898 | <input type="url" id="sig-server-url" placeholder="https://example.com:8080" spellcheck="false" autocomplete="off" style="flex:1"> |
| 899 | <button type="button" id="sig-check" class="ghost" title="Probe the server's /health endpoint">Check</button> |
| 900 | </div> |
| 901 | <span id="sig-check-status" class="pill hidden" style="margin-top:6px; align-self:flex-start"></span> |
| 902 | </label> |
| 903 | <p class="small">Base URL of the signaling server. The page will POST/GET to <code><url>/room/<code>/offer</code> and <code>/answer</code>.</p> |
| 904 | </div> |
| 905 | |
| 906 | <details style="margin-top:14px"> |
| 907 | <summary>Advanced</summary> |
| 908 | <div class="details-body"> |
| 909 | <label class="field" style="max-width:260px"> |
| 910 | <span>ICE gathering timeout (seconds)</span> |
| 911 | <input type="number" id="sig-ice-timeout" min="0" step="1" placeholder="8"> |
| 912 | </label> |
| 913 | <p class="small"> |
| 914 | Hard cap on how long the page waits for ICE candidate gathering before exporting the SDP. |
| 915 | Use <code>0</code> to wait indefinitely — useful when you want every candidate (e.g. slow TURN |
| 916 | relays) but expect to abort manually if gathering stalls. Default is 8 seconds. |
| 917 | </p> |
| 918 | </div> |
| 919 | </details> |
| 920 | </div> |
| 921 | |
| 922 | <details class="card card-collapsible"> |
| 923 | <summary><h2>ICE / TURN servers</h2></summary> |
| 924 | <div class="card-body"> |
| 925 | <p class="small"> |
| 926 | Leave the STUN default for typical LAN/internet use. Add TURN servers for cross-NAT peers. |
| 927 | Empty list means fully-local (host candidates only) — works on the same LAN or same machine. |
| 928 | </p> |
| 929 | <div id="ice-rows"></div> |
| 930 | <div class="actions"> |
| 931 | <button id="ice-add" class="ghost">+ Add server</button> |
| 932 | <button id="ice-clear" class="ghost">Clear all</button> |
| 933 | <button id="ice-reset" class="ghost">Reset to default</button> |
| 934 | <button id="ice-toggle-json" class="ghost">Edit as JSON…</button> |
| 935 | </div> |
| 936 | <div id="ice-json-wrap" class="hidden" style="margin-top:10px"> |
| 937 | <label class="field"> |
| 938 | <span>RTCIceServer[] JSON</span> |
| 939 | <textarea id="ice-json" spellcheck="false"></textarea> |
| 940 | </label> |
| 941 | <div class="actions"> |
| 942 | <button id="ice-json-apply" class="primary">Apply JSON</button> |
| 943 | </div> |
| 944 | </div> |
| 945 | |
| 946 | <h3 style="margin-top:18px">LAN connectivity</h3> |
| 947 | <p class="small"> |
| 948 | For privacy, browsers (especially Firefox) restrict WebRTC ICE candidates to the default network |
| 949 | interface while no microphone or camera stream is active on the page. If both peers are on the |
| 950 | same network and you don't have a TURN server, enabling this opens a muted microphone stream |
| 951 | (no audio is captured or sent) so the ICE agent can see all your local interfaces and direct |
| 952 | LAN candidates can be exchanged. The OS will indicate the microphone is in use; stop it from |
| 953 | here, the toolbar, or by hanging up. |
| 954 | </p> |
| 955 | <div class="actions"> |
| 956 | <button id="ice-warmup" class="ghost">Enable LAN connectivity</button> |
| 957 | <span id="ice-warmup-status" class="pill">off</span> |
| 958 | </div> |
| 959 | </div> |
| 960 | </details> |
| 961 | |
| 962 | <details class="card card-collapsible"> |
| 963 | <summary><h2>Media</h2></summary> |
| 964 | <div class="card-body"> |
| 965 | <p class="small">Munged into the offer/answer SDP at signaling time. These can <strong>only</strong> be set here — they are locked once the call is up and cannot be changed mid-call.</p> |
| 966 | |
| 967 | <label class="field" style="max-width:260px"> |
| 968 | <span>Receive codec preference</span> |
| 969 | <select id="preferred-codec"> |
| 970 | <option value="auto">auto (browser default)</option> |
| 971 | </select> |
| 972 | </label> |
| 973 | <p class="small">Reorders this side's SDP to ask the peer to encode with this codec when sending to you. Influences what the peer sends, not what you send.</p> |
| 974 | |
| 975 | <label class="field" style="max-width:260px"> |
| 976 | <span>Send codec</span> |
| 977 | <select id="send-codec"> |
| 978 | <option value="auto">auto (browser default)</option> |
| 979 | </select> |
| 980 | </label> |
| 981 | <p class="small">Pins the encoder used when sending video (both camera and screen share). Picks from the codecs negotiated with the peer; falls back to the browser default if the codec isn't available. Can also be changed mid-call from the runtime panel.</p> |
| 982 | <p class="small">If video freezes after a few seconds, try a different send codec — some browser/device combinations have buggy encoders (notably VP8 on Firefox Android).</p> |
| 983 | |
| 984 | <details> |
| 985 | <summary>Advanced Opus settings (SDP)</summary> |
| 986 | <div class="details-body"> |
| 987 | <div class="opus-list"> |
| 988 | <div class="opus-item"> |
| 989 | <label class="row"><input type="checkbox" id="o-stereo"> stereo / sprop-stereo</label> |
| 990 | <p class="small">Negotiate a 2-channel Opus stream. Only useful if the capture device is actually stereo — otherwise the second channel just duplicates the first and wastes bitrate.</p> |
| 991 | </div> |
| 992 | <div class="opus-item"> |
| 993 | <label class="row"><input type="checkbox" id="o-fec" checked> useinbandfec</label> |
| 994 | <p class="small">Forward error correction. The encoder embeds a low-bitrate copy of each frame inside the next one so the decoder can reconstruct single-packet losses without a retransmit. Costs a few percent bitrate.</p> |
| 995 | </div> |
| 996 | <div class="opus-item"> |
| 997 | <label class="row"><input type="checkbox" id="o-dtx" checked> usedtx</label> |
| 998 | <p class="small">Discontinuous transmission: the encoder stops sending packets during silence and the decoder fills in comfort noise. Saves bandwidth on quiet channels; can cut off very soft speech.</p> |
| 999 | </div> |
| 1000 | <div class="opus-item"> |
| 1001 | <label class="row"><input type="checkbox" id="o-cbr"> cbr (constant bitrate)</label> |
| 1002 | <p class="small">Force a constant bitrate instead of letting Opus vary it with content complexity. Mostly useful when something downstream expects a steady rate; usually leave off.</p> |
| 1003 | </div> |
| 1004 | <div class="opus-item"> |
| 1005 | <label class="field"> |
| 1006 | <span>maxaveragebitrate (bits/s; 0 = unset)</span> |
| 1007 | <input type="number" id="o-maxbr" placeholder="0" min="0" max="510000" step="1000"> |
| 1008 | </label> |
| 1009 | <p class="small">Upper bound the encoder targets on average. Set lower to save bandwidth on weak links; leave at 0 to let Opus pick (typically 32–64 kbps for speech, higher for music).</p> |
| 1010 | </div> |
| 1011 | </div> |
| 1012 | </div> |
| 1013 | </details> |
| 1014 | |
| 1015 | </div> |
| 1016 | </details> |
| 1017 | |
| 1018 | <div class="actions"> |
| 1019 | <button id="cfg-back" class="ghost">← Back</button> |
| 1020 | <button id="cfg-continue" class="primary">Continue to signaling →</button> |
| 1021 | </div> |
| 1022 | |
| 1023 | <div id="cfg-progress" class="progress-row hidden" role="status" aria-live="polite"> |
| 1024 | <span class="spinner"></span> |
| 1025 | <span> |
| 1026 | <span id="cfg-progress-label">Working…</span> |
| 1027 | <span id="cfg-progress-sub" class="sub"></span> |
| 1028 | </span> |
| 1029 | </div> |
| 1030 | </div> |
| 1031 | </dialog> |
| 1032 | |
| 1033 | <!-- ============== EXCHANGE ============== --> |
| 1034 | <dialog id="view-exchange" class="view-modal"> |
| 1035 | <div class="container"> |
| 1036 | <h1>Signaling exchange <span id="role-title-exch" class="role-badge"></span></h1> |
| 1037 | <p class="lede" id="exch-lede"></p> |
| 1038 | |
| 1039 | <div class="card"> |
| 1040 | <h2 id="step-1-h">Step 1</h2> |
| 1041 | <div id="step-1-body" class="blob-area"> |
| 1042 | <!-- filled by JS --> |
| 1043 | </div> |
| 1044 | </div> |
| 1045 | |
| 1046 | <div class="card" id="step-2-card"> |
| 1047 | <h2 id="step-2-h">Step 2</h2> |
| 1048 | <div id="step-2-body" class="blob-area"> |
| 1049 | <!-- filled by JS --> |
| 1050 | </div> |
| 1051 | </div> |
| 1052 | |
| 1053 | <div class="actions"> |
| 1054 | <button id="exch-cancel" class="ghost">Cancel</button> |
| 1055 | </div> |
| 1056 | |
| 1057 | <div id="exch-progress" class="progress-row hidden" role="status" aria-live="polite"> |
| 1058 | <span class="spinner"></span> |
| 1059 | <span> |
| 1060 | <span id="exch-progress-label">Working…</span> |
| 1061 | <span id="exch-progress-sub" class="sub"></span> |
| 1062 | </span> |
| 1063 | </div> |
| 1064 | </div> |
| 1065 | </dialog> |
| 1066 | |
| 1067 | <!-- ============== SDP INSPECTOR ============== --> |
| 1068 | <section id="view-sdp-inspect" class="view hidden"> |
| 1069 | <div class="container"> |
| 1070 | <h1>SDP inspector</h1> |
| 1071 | <p class="lede">Paste an offer or answer below — raw SDP, the JSON blob this tool emits, or its base64-wrapped form. Nothing leaves the page; parsing happens locally.</p> |
| 1072 | |
| 1073 | <div class="card"> |
| 1074 | <h2>Input</h2> |
| 1075 | <textarea id="sdp-in" spellcheck="false" placeholder="Paste SDP / JSON / b64:… here"></textarea> |
| 1076 | <div class="blob-controls"> |
| 1077 | <button id="sdp-inspect-go" class="primary">Inspect</button> |
| 1078 | <button id="sdp-inspect-clear" class="ghost">Clear</button> |
| 1079 | <button id="sdp-inspect-upload" class="ghost">Upload…</button> |
| 1080 | <input id="sdp-inspect-file" type="file" accept=".json,.txt,application/json,text/plain" hidden> |
| 1081 | <span class="pill" id="sdp-inspect-status"></span> |
| 1082 | </div> |
| 1083 | </div> |
| 1084 | |
| 1085 | <div id="sdp-inspect-out"></div> |
| 1086 | |
| 1087 | <div class="actions"> |
| 1088 | <button id="sdp-inspect-back" class="ghost">← Back</button> |
| 1089 | </div> |
| 1090 | </div> |
| 1091 | </section> |
| 1092 | |
| 1093 | <!-- ============== CALL ============== --> |
| 1094 | <section id="view-call" class="view hidden"> |
| 1095 | <div id="call-banner" class="call-banner hidden"> |
| 1096 | <span>You're in an empty call. Add a participant to get started.</span> |
| 1097 | <button id="call-banner-add" class="primary">+ Add participant</button> |
| 1098 | </div> |
| 1099 | <div class="call-body"> |
| 1100 | <div class="video-area" id="video-area"> |
| 1101 | <div class="video-tile empty" id="tile-local"> |
| 1102 | <video class="vid-main" id="vid-local-main" autoplay muted playsinline></video> |
| 1103 | <div class="pip hidden" id="pip-local"> |
| 1104 | <video class="vid-pip" id="vid-local-pip" autoplay muted playsinline></video> |
| 1105 | </div> |
| 1106 | <div class="empty-state"><svg viewBox="0 0 24 24" width="64" height="64" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-label="no video"><path d="M16 16v1a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V7a2 2 0 0 1 2-2h2m5.66 0H14a2 2 0 0 1 2 2v3.34l1 1L23 7v10"/><line x1="1" y1="1" x2="23" y2="23"/></svg></div> |
| 1107 | <div class="mic-muted hidden" id="mic-muted-local" title="microphone muted"><svg viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-label="muted"><line x1="1" y1="1" x2="23" y2="23"/><path d="M9 9v3a3 3 0 0 0 5.12 2.12M15 9.34V4a3 3 0 0 0-5.94-.6"/><path d="M17 16.95A7 7 0 0 1 5 12v-2m14 0v2a7 7 0 0 1-.11 1.23"/><line x1="12" y1="19" x2="12" y2="23"/></svg></div> |
| 1108 | <span class="tile-label" id="tile-local-label">you</span> |
| 1109 | </div> |
| 1110 | <!-- Per-peer tiles inserted here by App.tiles. --> |
| 1111 | </div> |
| 1112 | |
| 1113 | <aside class="sidebar"> |
| 1114 | <div class="tabs"> |
| 1115 | <button data-tab="chat" class="active">Chat</button> |
| 1116 | <button data-tab="files">Files</button> |
| 1117 | <button data-tab="settings">Settings</button> |
| 1118 | <button data-tab="stats">Stats</button> |
| 1119 | </div> |
| 1120 | |
| 1121 | <div class="tab-pane active" data-pane="chat"> |
| 1122 | <div id="chat-log" class="chat-log"></div> |
| 1123 | <div id="chat-recipients" class="recipients"></div> |
| 1124 | <div class="chat-input"> |
| 1125 | <input type="text" id="chat-text" placeholder="Type a message and press Enter" autocomplete="off"> |
| 1126 | <button id="chat-send" class="primary">Send</button> |
| 1127 | </div> |
| 1128 | <div id="chat-counter" class="chat-counter small">0 / 8192 B</div> |
| 1129 | </div> |
| 1130 | |
| 1131 | <div class="tab-pane" data-pane="files"> |
| 1132 | <div id="files-recipients" class="recipients"></div> |
| 1133 | <div id="files-drop" class="files-drop"> |
| 1134 | <p><strong>Drop a file here</strong> or <a href="#" id="files-pick">pick one</a>.</p> |
| 1135 | <p class="small">Single file at a time. Chunked over a dedicated data channel. Max <span id="files-max">5 GB</span> per file.</p> |
| 1136 | <input type="file" id="files-input" class="hidden"> |
| 1137 | </div> |
| 1138 | <div class="files-section-head"><h3>Outgoing</h3><button class="ghost small" id="files-out-clear">Clear all</button></div> |
| 1139 | <div id="files-out"></div> |
| 1140 | <div class="files-section-head"><h3>Incoming</h3><button class="ghost small" id="files-in-clear">Clear all</button></div> |
| 1141 | <div id="files-in"></div> |
| 1142 | </div> |
| 1143 | |
| 1144 | <div class="tab-pane" data-pane="settings"> |
| 1145 | <h3>Profile</h3> |
| 1146 | <label class="field"> |
| 1147 | <span>Username</span> |
| 1148 | <div class="row" style="gap:6px; align-items:stretch"> |
| 1149 | <input type="text" id="rt-username" maxlength="64" autocomplete="off" style="flex:1"> |
| 1150 | <button id="rt-username-apply" class="ghost">Save</button> |
| 1151 | </div> |
| 1152 | </label> |
| 1153 | <p class="small">Shown to other participants in chat and on their video tile. Saved locally; broadcast over each open chat channel.</p> |
| 1154 | |
| 1155 | <h3>Camera capture</h3> |
| 1156 | <p class="small">Resolution and framerate restart the camera when applied. New peers inherit these as their initial values.</p> |
| 1157 | <div class="grid-2"> |
| 1158 | <label class="field"> |
| 1159 | <span>Width (px, 0 = auto)</span> |
| 1160 | <input type="number" id="rt-v-w" min="0" max="3840"> |
| 1161 | </label> |
| 1162 | <label class="field"> |
| 1163 | <span>Height (px, 0 = auto)</span> |
| 1164 | <input type="number" id="rt-v-h" min="0" max="2160"> |
| 1165 | </label> |
| 1166 | <label class="field"> |
| 1167 | <span>Frame rate (fps, 0 = auto)</span> |
| 1168 | <input type="number" id="rt-v-fps" min="0" max="120"> |
| 1169 | </label> |
| 1170 | </div> |
| 1171 | <button id="rt-v-cap-apply" class="ghost">Apply camera</button> |
| 1172 | |
| 1173 | <h3>Screen capture</h3> |
| 1174 | <p class="small">Resolution and framerate restart the share — you'll be re-prompted for the source.</p> |
| 1175 | <div class="grid-2"> |
| 1176 | <label class="field"> |
| 1177 | <span>Width (px, 0 = auto)</span> |
| 1178 | <input type="number" id="rt-s-w" min="0" max="7680"> |
| 1179 | </label> |
| 1180 | <label class="field"> |
| 1181 | <span>Height (px, 0 = auto)</span> |
| 1182 | <input type="number" id="rt-s-h" min="0" max="4320"> |
| 1183 | </label> |
| 1184 | <label class="field"> |
| 1185 | <span>Frame rate (fps, 0 = auto)</span> |
| 1186 | <input type="number" id="rt-s-fps" min="0" max="120"> |
| 1187 | </label> |
| 1188 | </div> |
| 1189 | <button id="rt-s-cap-apply" class="ghost">Apply screen</button> |
| 1190 | |
| 1191 | <h3>Audio</h3> |
| 1192 | <p class="small">Echo/noise/AGC apply live. Channels and sample rate take effect by restarting the microphone.</p> |
| 1193 | <label class="row"><input type="checkbox" id="rt-a-aec"> Echo cancellation</label> |
| 1194 | <label class="row"><input type="checkbox" id="rt-a-ns" > Noise suppression</label> |
| 1195 | <label class="row"><input type="checkbox" id="rt-a-agc"> Auto gain control</label> |
| 1196 | <div class="grid-2"> |
| 1197 | <label class="field"> |
| 1198 | <span>Channels</span> |
| 1199 | <select id="rt-a-channels"> |
| 1200 | <option value="1">1 (mono)</option> |
| 1201 | <option value="2">2 (stereo)</option> |
| 1202 | </select> |
| 1203 | </label> |
| 1204 | <label class="field"> |
| 1205 | <span>Sample rate (Hz, 0 = auto)</span> |
| 1206 | <input type="number" id="rt-a-rate" min="0" max="96000" step="1000"> |
| 1207 | </label> |
| 1208 | </div> |
| 1209 | <button id="rt-a-apply" class="ghost">Apply audio</button> |
| 1210 | |
| 1211 | <div class="settings-target"> |
| 1212 | <label class="field"> |
| 1213 | <span>Per-peer encoder target</span> |
| 1214 | <select id="settings-target"> |
| 1215 | <option value="all">All connected peers</option> |
| 1216 | </select> |
| 1217 | </label> |
| 1218 | <p class="small">Encoder settings below apply to the selected target. Choosing "All connected peers" also updates the values new peers inherit.</p> |
| 1219 | </div> |
| 1220 | |
| 1221 | <h3>Camera encoder</h3> |
| 1222 | <p class="small">Max bitrate and degradation preference are applied instantly without touching the camera.</p> |
| 1223 | <div class="grid-2"> |
| 1224 | <label class="field"> |
| 1225 | <span>Max send bitrate (kbps, 0 = unset)</span> |
| 1226 | <input type="number" id="rt-v-maxbr" min="0" max="20000" step="50"> |
| 1227 | </label> |
| 1228 | <label class="field"> |
| 1229 | <span>Degradation preference</span> |
| 1230 | <select id="rt-v-degrade"> |
| 1231 | <option value="balanced">balanced</option> |
| 1232 | <option value="maintain-framerate">maintain-framerate</option> |
| 1233 | <option value="maintain-resolution">maintain-resolution</option> |
| 1234 | </select> |
| 1235 | </label> |
| 1236 | </div> |
| 1237 | <button id="rt-v-enc-apply" class="ghost">Apply camera encoder</button> |
| 1238 | |
| 1239 | <h3>Screen encoder</h3> |
| 1240 | <div class="grid-2"> |
| 1241 | <label class="field"> |
| 1242 | <span>Max send bitrate (kbps, 0 = unset)</span> |
| 1243 | <input type="number" id="rt-s-maxbr" min="0" max="50000" step="100"> |
| 1244 | </label> |
| 1245 | <label class="field"> |
| 1246 | <span>Degradation preference</span> |
| 1247 | <select id="rt-s-degrade"> |
| 1248 | <option value="balanced">balanced</option> |
| 1249 | <option value="maintain-framerate">maintain-framerate</option> |
| 1250 | <option value="maintain-resolution">maintain-resolution</option> |
| 1251 | </select> |
| 1252 | </label> |
| 1253 | </div> |
| 1254 | <button id="rt-s-enc-apply" class="ghost">Apply screen encoder</button> |
| 1255 | |
| 1256 | <h3>Send codec</h3> |
| 1257 | <p class="small">Applies to both camera and screen-share encoders. Picks from the codecs negotiated at signaling time.</p> |
| 1258 | <div class="grid-2"> |
| 1259 | <label class="field"> |
| 1260 | <span>Send codec</span> |
| 1261 | <select id="rt-codec"> |
| 1262 | <option value="auto">auto</option> |
| 1263 | </select> |
| 1264 | </label> |
| 1265 | </div> |
| 1266 | <button id="rt-codec-apply" class="ghost">Apply codec</button> |
| 1267 | </div> |
| 1268 | |
| 1269 | <div class="tab-pane" data-pane="stats"> |
| 1270 | <div class="stats-head"> |
| 1271 | <h3>Peer</h3> |
| 1272 | <select id="stats-peer"><option value="">(no peers)</option></select> |
| 1273 | <button id="stats-export" class="ghost small">Export</button> |
| 1274 | </div> |
| 1275 | <table class="stats-table" id="stats-table"><tbody></tbody></table> |
| 1276 | </div> |
| 1277 | </aside> |
| 1278 | </div> |
| 1279 | |
| 1280 | <div class="toolbar"> |
| 1281 | <div class="device-picker"> |
| 1282 | <button id="tb-mic" class="off" title="Enable microphone"><svg class="ic" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="9" y="2" width="6" height="12" rx="3"/><path d="M5 11v1a7 7 0 0 0 14 0v-1"/><line x1="12" y1="19" x2="12" y2="22"/><line x1="8" y1="22" x2="16" y2="22"/></svg><span class="nowrap">Mic off</span></button> |
| 1283 | <button id="tb-mic-pick" class="device-chevron" title="Choose microphone" aria-haspopup="true" aria-expanded="false"></button> |
| 1284 | <div id="tb-mic-menu" class="device-menu hidden" role="menu" aria-label="Microphone"></div> |
| 1285 | </div> |
| 1286 | <div class="device-picker"> |
| 1287 | <button id="tb-cam" class="off" title="Enable camera"><svg class="ic" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M23 7l-7 5 7 5z"/><rect x="1" y="5" width="15" height="14" rx="2"/></svg><span class="nowrap">Cam off</span></button> |
| 1288 | <button id="tb-cam-pick" class="device-chevron" title="Choose camera" aria-haspopup="true" aria-expanded="false"></button> |
| 1289 | <div id="tb-cam-menu" class="device-menu hidden" role="menu" aria-label="Camera"></div> |
| 1290 | </div> |
| 1291 | <button id="tb-screen" class="off" title="Share screen"><svg class="ic" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="2" y="3" width="20" height="13" rx="2"/><line x1="8" y1="21" x2="16" y2="21"/><line x1="12" y1="16" x2="12" y2="21"/><polyline points="9 10 12 7 15 10"/><line x1="12" y1="7" x2="12" y2="13"/></svg><span class="nowrap">Screen off</span></button> |
| 1292 | <span class="spacer"></span> |
| 1293 | <button id="tb-add-peer" class="primary" title="Add participant"><svg class="ic" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M16 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/><circle cx="8.5" cy="7" r="4"/><line x1="20" y1="8" x2="20" y2="14"/><line x1="23" y1="11" x2="17" y2="11"/></svg><span class="nowrap">Add participant</span></button> |
| 1294 | <button id="console-toggle" title="Debug console"><svg class="ic" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><polyline points="4 17 10 11 4 5"/><line x1="12" y1="19" x2="20" y2="19"/></svg><span class="nowrap">Console</span></button> |
| 1295 | <button id="tb-hangup" class="danger" title="Hang up"><svg class="ic" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M18.36 6.64a9 9 0 1 1-12.73 0"/><line x1="12" y1="2" x2="12" y2="12"/></svg><span class="nowrap">Hang up</span></button> |
| 1296 | </div> |
| 1297 | <aside id="console-drawer" class="hidden"> |
| 1298 | <div class="console-head"> |
| 1299 | <strong>Debug console</strong> |
| 1300 | <span class="small" id="console-count">0 entries</span> |
| 1301 | <span class="spacer"></span> |
| 1302 | <label class="small">Level |
| 1303 | <select id="console-level"> |
| 1304 | <option value="debug">debug</option> |
| 1305 | <option value="info" selected>info</option> |
| 1306 | <option value="warn">warn</option> |
| 1307 | <option value="error">error</option> |
| 1308 | </select> |
| 1309 | </label> |
| 1310 | <label class="small">Filter <input type="text" id="console-filter" placeholder="text"></label> |
| 1311 | <button class="ghost small" id="console-clear">Clear</button> |
| 1312 | <button class="ghost small" id="console-export">Export</button> |
| 1313 | <button class="ghost small" id="console-stats-toggle">Stats poll</button> |
| 1314 | <button class="ghost small" id="console-close">×</button> |
| 1315 | </div> |
| 1316 | <div class="console-body" id="console-body"></div> |
| 1317 | </aside> |
| 1318 | </section> |
| 1319 | |
| 1320 | <dialog id="add-peer-dialog"> |
| 1321 | <h2>Add participant</h2> |
| 1322 | <p class="small">Set up one new pairwise connection. Each participant you add is independent — chat and files fan out to everyone connected to you.</p> |
| 1323 | |
| 1324 | <h3 style="margin-top:14px">Your role for this connection</h3> |
| 1325 | <div class="role-picker compact"> |
| 1326 | <button type="button" data-role="initiator"> |
| 1327 | <span class="role-title">Start (create offer)</span> |
| 1328 | <span class="role-desc">You'll generate the offer; the other side joins.</span> |
| 1329 | </button> |
| 1330 | <button type="button" data-role="joiner"> |
| 1331 | <span class="role-title">Join (apply offer)</span> |
| 1332 | <span class="role-desc">The other side started; you apply their offer and send back the answer.</span> |
| 1333 | </button> |
| 1334 | <button type="button" data-role="loopback" class="role-loopback"> |
| 1335 | <span class="role-title">Loopback (same tab)</span> |
| 1336 | <span class="role-desc">Add a synthetic peer in this tab. Useful for testing media and the conference layout locally. Can be added multiple times.</span> |
| 1337 | </button> |
| 1338 | </div> |
| 1339 | |
| 1340 | <div class="dialog-actions"> |
| 1341 | <button id="add-peer-cancel" class="ghost">Cancel</button> |
| 1342 | </div> |
| 1343 | </dialog> |
| 1344 | |
| 1345 | <dialog id="step-dialog"> |
| 1346 | <div class="step-dialog-head"> |
| 1347 | <span class="spinner" aria-hidden="true"></span> |
| 1348 | <h2 id="step-dialog-label">Working…</h2> |
| 1349 | </div> |
| 1350 | <p id="step-dialog-sub"></p> |
| 1351 | <div id="step-dialog-room" class="step-dialog-room hidden"> |
| 1352 | <span class="step-dialog-room-label">Room code</span> |
| 1353 | <code id="step-dialog-room-code"></code> |
| 1354 | </div> |
| 1355 | <div class="dialog-actions"> |
| 1356 | <button id="step-dialog-cancel" class="ghost">Cancel</button> |
| 1357 | </div> |
| 1358 | </dialog> |
| 1359 | |
| 1360 | </main> |
| 1361 | |
| 1362 | <script> |
| 1363 | 'use strict'; |
| 1364 | |
| 1365 | /* ========================================================================= |
| 1366 | WebRTC Playground — single-file, backend-less. |
| 1367 | |
| 1368 | Module layout (all under one `App` namespace): |
| 1369 | App.log — ring-buffer log + console drawer rendering |
| 1370 | App.theme — light/dark |
| 1371 | App.state — current view / role / pc / dc / settings |
| 1372 | App.signal — blob format + wait for ICE complete |
| 1373 | App.codec — Opus SDP munging |
| 1374 | App.media — gUM/gDM, pre-allocated transceivers, replaceTrack |
| 1375 | App.chat — text over the chat data channel |
| 1376 | App.files — chunked file transfer over the files data channel |
| 1377 | App.stats — getStats() polling |
| 1378 | App.ui — view rendering, event wiring |
| 1379 | ========================================================================= */ |
| 1380 | |
| 1381 | const App = {}; |
| 1382 | window.App = App; /* useful for poking from devtools */ |
| 1383 | |
| 1384 | /* ------------------------------------------------------------------------- |
| 1385 | Log |
| 1386 | ------------------------------------------------------------------------- */ |
| 1387 | App.log = (() => { |
| 1388 | const MAX = 1000; |
| 1389 | const buf = []; |
| 1390 | const subs = new Set(); |
| 1391 | function push(level, label, args) { |
| 1392 | const entry = { level, label, ts: Date.now(), args }; |
| 1393 | buf.push(entry); |
| 1394 | if (buf.length > MAX) buf.shift(); |
| 1395 | subs.forEach(fn => { try { fn(entry); } catch (e) { /* swallow */ } }); |
| 1396 | const m = level === 'debug' ? 'log' : level; |
| 1397 | try { console[m](`[${label}]`, ...args); } catch (_) {} |
| 1398 | } |
| 1399 | return { |
| 1400 | debug: (l, ...a) => push('debug', l, a), |
| 1401 | info: (l, ...a) => push('info', l, a), |
| 1402 | warn: (l, ...a) => push('warn', l, a), |
| 1403 | error: (l, ...a) => push('error', l, a), |
| 1404 | subscribe: fn => { subs.add(fn); return () => subs.delete(fn); }, |
| 1405 | snapshot: () => buf.slice(), |
| 1406 | clear: () => { buf.length = 0; subs.forEach(fn => fn(null)); }, |
| 1407 | }; |
| 1408 | })(); |
| 1409 | |
| 1410 | window.addEventListener('error', e => App.log.error('window', e.message, e.filename + ':' + e.lineno)); |
| 1411 | window.addEventListener('unhandledrejection', e => App.log.error('promise', String(e.reason))); |
| 1412 | |
| 1413 | /* ------------------------------------------------------------------------- |
| 1414 | Theme |
| 1415 | ------------------------------------------------------------------------- */ |
| 1416 | App.theme = (() => { |
| 1417 | const stored = localStorage.getItem('webrtc-tool.theme'); |
| 1418 | if (stored) document.documentElement.setAttribute('data-theme', stored); |
| 1419 | return { |
| 1420 | toggle() { |
| 1421 | const cur = document.documentElement.getAttribute('data-theme') || 'dark'; |
| 1422 | const next = cur === 'dark' ? 'light' : 'dark'; |
| 1423 | document.documentElement.setAttribute('data-theme', next); |
| 1424 | localStorage.setItem('webrtc-tool.theme', next); |
| 1425 | } |
| 1426 | }; |
| 1427 | })(); |
| 1428 | |
| 1429 | /* ------------------------------------------------------------------------- |
| 1430 | Progress: inline labeled spinner shown during slow setup steps (gUM |
| 1431 | prompt, ICE gathering, etc.). Two hosts: configure view + exchange view. |
| 1432 | ------------------------------------------------------------------------- */ |
| 1433 | App.progress = (() => { |
| 1434 | let modalCancelHandler = null; |
| 1435 | function active() { |
| 1436 | /* Pick the progress widget inside the currently visible view OR open |
| 1437 | dialog (configure / exchange are <dialog>s now, not .view sections). */ |
| 1438 | const candidates = ['cfg-progress', 'exch-progress']; |
| 1439 | for (const id of candidates) { |
| 1440 | const el = document.getElementById(id); |
| 1441 | if (!el) continue; |
| 1442 | const dlg = el.closest('dialog'); |
| 1443 | if (dlg && dlg.open) return el; |
| 1444 | const view = el.closest('.view'); |
| 1445 | if (view && !view.classList.contains('hidden')) return el; |
| 1446 | } |
| 1447 | return null; |
| 1448 | } |
| 1449 | function setBusy(busy) { |
| 1450 | /* Disable the primary action button(s) while a step is running so the |
| 1451 | user can't double-fire ICE gathering. */ |
| 1452 | const ids = ['cfg-continue', 'cfg-back', 'blob-apply']; |
| 1453 | ids.forEach(id => { |
| 1454 | const el = document.getElementById(id); |
| 1455 | if (el) el.disabled = busy; |
| 1456 | }); |
| 1457 | } |
| 1458 | function show(label, sub) { |
| 1459 | /* If the modal is up from a previous step, close it before falling back |
| 1460 | to the inline widget. */ |
| 1461 | hideModal(); |
| 1462 | const host = active(); |
| 1463 | if (host) { |
| 1464 | host.classList.remove('hidden'); |
| 1465 | host.querySelector('#' + host.id + '-label').textContent = label || 'Working…'; |
| 1466 | host.querySelector('#' + host.id + '-sub').textContent = sub || ''; |
| 1467 | } |
| 1468 | setBusy(true); |
| 1469 | } |
| 1470 | /* Modal version: used for long blocking steps (ICE gathering, waiting for |
| 1471 | peer) where the user needs an explicit Cancel affordance and where the |
| 1472 | inline widget would otherwise sit under a Continue button they can't |
| 1473 | reach. opts.roomCode, when set, is rendered in a highlighted block. */ |
| 1474 | function showModal(label, sub, opts) { |
| 1475 | opts = opts || {}; |
| 1476 | const dlg = document.getElementById('step-dialog'); |
| 1477 | if (!dlg) return; |
| 1478 | /* Hide the inline widget if it happened to be up. */ |
| 1479 | document.getElementById('cfg-progress')?.classList.add('hidden'); |
| 1480 | document.getElementById('exch-progress')?.classList.add('hidden'); |
| 1481 | document.getElementById('step-dialog-label').textContent = label || 'Working…'; |
| 1482 | document.getElementById('step-dialog-sub').textContent = sub || ''; |
| 1483 | const roomWrap = document.getElementById('step-dialog-room'); |
| 1484 | if (opts.roomCode) { |
| 1485 | document.getElementById('step-dialog-room-code').textContent = opts.roomCode; |
| 1486 | roomWrap.classList.remove('hidden'); |
| 1487 | } else { |
| 1488 | roomWrap.classList.add('hidden'); |
| 1489 | } |
| 1490 | modalCancelHandler = opts.onCancel || null; |
| 1491 | setBusy(true); |
| 1492 | if (!dlg.open && typeof dlg.showModal === 'function') { |
| 1493 | try { dlg.showModal(); } catch (_) { /* already open */ } |
| 1494 | } |
| 1495 | } |
| 1496 | function hideModal() { |
| 1497 | const dlg = document.getElementById('step-dialog'); |
| 1498 | if (dlg && dlg.open) { try { dlg.close(); } catch (_) {} } |
| 1499 | modalCancelHandler = null; |
| 1500 | } |
| 1501 | function hide() { |
| 1502 | document.getElementById('cfg-progress')?.classList.add('hidden'); |
| 1503 | document.getElementById('exch-progress')?.classList.add('hidden'); |
| 1504 | hideModal(); |
| 1505 | setBusy(false); |
| 1506 | } |
| 1507 | function triggerCancel() { |
| 1508 | const fn = modalCancelHandler; |
| 1509 | modalCancelHandler = null; |
| 1510 | if (fn) fn(); |
| 1511 | } |
| 1512 | return { show, showModal, hide, hideModal, triggerCancel }; |
| 1513 | })(); |
| 1514 | |
| 1515 | /* ------------------------------------------------------------------------- |
| 1516 | State |
| 1517 | |
| 1518 | Multi-peer model: each remote participant has its own PeerCtx (its own |
| 1519 | RTCPeerConnection, data channels, transceivers, remote streams, and |
| 1520 | peer-published media-state). Local media (mic/cam/screen capture) is |
| 1521 | captured once and fanned out to every peer's senders via replaceTrack — |
| 1522 | so capture state stays on App.state, not on a peer. |
| 1523 | ------------------------------------------------------------------------- */ |
| 1524 | App.state = { |
| 1525 | peers: new Map(), /* peerId (string) -> PeerCtx */ |
| 1526 | pendingPeer: null, /* PeerCtx being set up via the Add Participant dialog */ |
| 1527 | localStream: null, /* gUM result (mic + cam, synthetic) */ |
| 1528 | screenStream: null, /* gDM result */ |
| 1529 | micTrack: null, /* live local mic MediaStreamTrack, or null */ |
| 1530 | camTrack: null, /* live local cam MediaStreamTrack, or null */ |
| 1531 | iceWarmupStream: null, /* kept alive (muted) to unlock LAN ICE candidates in Firefox */ |
| 1532 | username: 'Anonymous', |
| 1533 | settings: defaultSettings(), |
| 1534 | /* Banner shown when peers is empty. Once dismissed (auto on first join) |
| 1535 | it stays dismissed for the rest of the session, even if all peers leave. */ |
| 1536 | bannerDismissed: false, |
| 1537 | }; |
| 1538 | |
| 1539 | /* PeerCtx — everything specific to one remote participant. */ |
| 1540 | function newPeerCtx(opts) { |
| 1541 | return { |
| 1542 | id: opts.id, |
| 1543 | role: opts.role, /* 'initiator' | 'joiner' | 'loopback' */ |
| 1544 | label: opts.label || opts.id, /* logger tag */ |
| 1545 | username: opts.username || 'Anonymous', |
| 1546 | pc: null, |
| 1547 | dcChat: null, |
| 1548 | dcFiles: null, |
| 1549 | micTransceiver: null, |
| 1550 | camTransceiver: null, |
| 1551 | screenTransceiver: null, |
| 1552 | remoteStream: null, /* mic + cam from this peer */ |
| 1553 | remoteScreenStream: null, /* screen from this peer */ |
| 1554 | peerMediaState: { mic: false, cam: false, screen: false }, |
| 1555 | /* Per-peer media settings (setParameters-tunable, no renegotiation). */ |
| 1556 | videoMaxBitrateKbps: 0, |
| 1557 | videoDegradationPreference: 'balanced', |
| 1558 | screenMaxBitrateKbps: 0, |
| 1559 | screenDegradationPreference: 'maintain-resolution', |
| 1560 | sendVideoCodec: 'auto', |
| 1561 | /* Loopback only: this peer's synthetic pcB. Each loopback peer has its |
| 1562 | own pcB so multiple loopbacks can coexist. */ |
| 1563 | loopbackB: null, |
| 1564 | /* Signaling lifecycle: an in-flight AbortController for auto-mode fetches |
| 1565 | so cancelSetup / hangup can abort the long-poll cleanly. */ |
| 1566 | signalAbort: null, |
| 1567 | /* True if the chat dc has already received a 'bye' from this peer, so we |
| 1568 | don't run the leave-handler twice. */ |
| 1569 | leaveReceived: false, |
| 1570 | }; |
| 1571 | } |
| 1572 | |
| 1573 | function generatePeerId() { |
| 1574 | /* 8 lowercase hex chars — enough to disambiguate "Anonymous" peers. */ |
| 1575 | const a = new Uint8Array(4); |
| 1576 | crypto.getRandomValues(a); |
| 1577 | return Array.from(a, b => b.toString(16).padStart(2, '0')).join(''); |
| 1578 | } |
| 1579 | |
| 1580 | /* Convenience: iterate live peers (any state); callers usually want only |
| 1581 | those with an open chat channel and a connected pc. */ |
| 1582 | function peerList() { return Array.from(App.state.peers.values()); } |
| 1583 | function peersWithOpenChat() { |
| 1584 | return peerList().filter(p => p.dcChat && p.dcChat.readyState === 'open'); |
| 1585 | } |
| 1586 | function peersWithOpenFiles() { |
| 1587 | return peerList().filter(p => p.dcFiles && p.dcFiles.readyState === 'open'); |
| 1588 | } |
| 1589 | |
| 1590 | function defaultSettings() { |
| 1591 | const stored = localStorage.getItem('webrtc-tool.iceServers'); |
| 1592 | let ice; |
| 1593 | try { ice = stored ? JSON.parse(stored) : [{ urls: 'stun:stun.l.google.com:19302' }]; } |
| 1594 | catch (_) { ice = [{ urls: 'stun:stun.l.google.com:19302' }]; } |
| 1595 | /* Audio + video gUM constraints are global (one local capture, fanned out |
| 1596 | to all peers). bitrate/codec/degradation are stored here as defaults for |
| 1597 | newly-added peers, and copied into each PeerCtx on creation. */ |
| 1598 | return { |
| 1599 | iceServers: ice, |
| 1600 | audio: { echoCancellation: true, noiseSuppression: true, autoGainControl: true, channelCount: 1, sampleRate: 0, deviceId: '' }, |
| 1601 | opus: { stereo: false, fec: true, dtx: true, cbr: false, maxAverageBitrate: 0 }, |
| 1602 | video: { width: 0, height: 0, frameRate: 0, maxBitrateKbps: 0, degradationPreference: 'balanced', deviceId: '' }, |
| 1603 | screen: { width: 0, height: 0, frameRate: 0, maxBitrateKbps: 0, degradationPreference: 'maintain-resolution' }, |
| 1604 | preferredVideoCodec: 'auto', |
| 1605 | sendVideoCodec: 'auto', |
| 1606 | base64: false, |
| 1607 | signaling: loadSignaling(), |
| 1608 | }; |
| 1609 | } |
| 1610 | |
| 1611 | function loadUsername() { |
| 1612 | try { |
| 1613 | const raw = localStorage.getItem('webrtc-tool.username'); |
| 1614 | if (typeof raw === 'string' && raw.trim()) return raw.trim().slice(0, 64); |
| 1615 | } catch (_) {} |
| 1616 | return 'Anonymous'; |
| 1617 | } |
| 1618 | function saveUsername(name) { |
| 1619 | try { localStorage.setItem('webrtc-tool.username', name); } catch (_) {} |
| 1620 | } |
| 1621 | |
| 1622 | function loadSignaling() { |
| 1623 | /* Default server URL is the page's own origin — the natural assumption is |
| 1624 | that the relay is colocated with the static page. For file:// loads |
| 1625 | location.origin is "null"; fall back to blank so the user fills it in. */ |
| 1626 | const defaultUrl = (location.protocol === 'http:' || location.protocol === 'https:') |
| 1627 | ? location.origin : ''; |
| 1628 | const defaults = { mode: 'auto', serverUrl: defaultUrl, iceGatherTimeoutMs: 8000 }; |
| 1629 | try { |
| 1630 | const stored = localStorage.getItem('webrtc-tool.signaling'); |
| 1631 | if (stored) { |
| 1632 | const s = JSON.parse(stored); |
| 1633 | const t = Number(s.iceGatherTimeoutMs); |
| 1634 | return { |
| 1635 | mode: s.mode === 'manual' ? 'manual' : 'auto', |
| 1636 | serverUrl: typeof s.serverUrl === 'string' ? s.serverUrl : defaultUrl, |
| 1637 | /* 0 is a valid value (= no timeout); only fall back when missing/NaN/negative. */ |
| 1638 | iceGatherTimeoutMs: Number.isFinite(t) && t >= 0 ? t : defaults.iceGatherTimeoutMs, |
| 1639 | }; |
| 1640 | } |
| 1641 | } catch (_) {} |
| 1642 | return defaults; |
| 1643 | } |
| 1644 | |
| 1645 | function saveSignaling() { |
| 1646 | try { |
| 1647 | localStorage.setItem('webrtc-tool.signaling', JSON.stringify({ |
| 1648 | mode: App.state.settings.signaling.mode, |
| 1649 | serverUrl: App.state.settings.signaling.serverUrl, |
| 1650 | iceGatherTimeoutMs: App.state.settings.signaling.iceGatherTimeoutMs, |
| 1651 | })); |
| 1652 | } catch (_) {} |
| 1653 | } |
| 1654 | |
| 1655 | function saveIce() { |
| 1656 | try { localStorage.setItem('webrtc-tool.iceServers', JSON.stringify(App.state.settings.iceServers)); } catch (_) {} |
| 1657 | } |
| 1658 | |
| 1659 | /* ------------------------------------------------------------------------- |
| 1660 | Signal: blob format + ICE-complete wait |
| 1661 | ------------------------------------------------------------------------- */ |
| 1662 | App.signal = (() => { |
| 1663 | function waitForIceComplete(pc, signal) { |
| 1664 | return new Promise(resolve => { |
| 1665 | if (pc.iceGatheringState === 'complete') return resolve(); |
| 1666 | if (signal && signal.aborted) return resolve(); |
| 1667 | let timeoutId = null; |
| 1668 | function done() { |
| 1669 | if (timeoutId !== null) { clearTimeout(timeoutId); timeoutId = null; } |
| 1670 | pc.removeEventListener('icegatheringstatechange', check); |
| 1671 | if (signal) signal.removeEventListener('abort', done); |
| 1672 | resolve(); |
| 1673 | } |
| 1674 | function check() { if (pc.iceGatheringState === 'complete') done(); } |
| 1675 | pc.addEventListener('icegatheringstatechange', check); |
| 1676 | if (signal) signal.addEventListener('abort', done, { once: true }); |
| 1677 | /* Hard cap so a never-completing gathering doesn't stall the UI forever. |
| 1678 | User-configurable in the Signaling → Advanced panel; 0 disables the |
| 1679 | cap entirely (the abort signal / setRemoteDescription is then the |
| 1680 | only way out). */ |
| 1681 | const cap = App.state.settings.signaling.iceGatherTimeoutMs; |
| 1682 | if (cap > 0) { |
| 1683 | timeoutId = setTimeout(() => { |
| 1684 | if (pc.iceGatheringState !== 'complete') |
| 1685 | App.log.warn('signal', 'ICE gathering timed out at ' + (cap / 1000) + 's; exporting partial SDP'); |
| 1686 | timeoutId = null; |
| 1687 | done(); |
| 1688 | }, cap); |
| 1689 | } |
| 1690 | }); |
| 1691 | } |
| 1692 | function utf8ToBase64(s) { |
| 1693 | const bytes = new TextEncoder().encode(s); |
| 1694 | /* btoa works on binary strings (one char = one byte). Convert through |
| 1695 | String.fromCharCode in 8 KB chunks to avoid blowing the argument limit. */ |
| 1696 | let bin = ''; |
| 1697 | for (let i = 0; i < bytes.length; i += 0x2000) |
| 1698 | bin += String.fromCharCode.apply(null, bytes.subarray(i, i + 0x2000)); |
| 1699 | return btoa(bin); |
| 1700 | } |
| 1701 | function base64ToUtf8(b64) { |
| 1702 | const bin = atob(b64); |
| 1703 | const bytes = new Uint8Array(bin.length); |
| 1704 | for (let i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i); |
| 1705 | return new TextDecoder().decode(bytes); |
| 1706 | } |
| 1707 | function encode(desc) { |
| 1708 | const obj = { v: 1, type: desc.type, sdp: desc.sdp, ts: Date.now() }; |
| 1709 | let text = JSON.stringify(obj); |
| 1710 | if (App.state.settings.base64) text = 'b64:' + utf8ToBase64(text); |
| 1711 | return text; |
| 1712 | } |
| 1713 | function decode(text) { |
| 1714 | text = (text || '').trim(); |
| 1715 | if (!text) throw new Error('empty'); |
| 1716 | if (text.startsWith('b64:')) { |
| 1717 | try { text = base64ToUtf8(text.slice(4)); } |
| 1718 | catch (e) { throw new Error('bad base64'); } |
| 1719 | } |
| 1720 | let obj; |
| 1721 | try { obj = JSON.parse(text); } catch (e) { throw new Error('not JSON: ' + e.message); } |
| 1722 | if (!obj || (obj.type !== 'offer' && obj.type !== 'answer')) |
| 1723 | throw new Error('expected {type:"offer"|"answer", sdp:...}'); |
| 1724 | if (typeof obj.sdp !== 'string' || !obj.sdp.includes('v=')) throw new Error('missing SDP'); |
| 1725 | return obj; |
| 1726 | } |
| 1727 | return { waitForIceComplete, encode, decode }; |
| 1728 | })(); |
| 1729 | |
| 1730 | function iceGatheringSubtitle() { |
| 1731 | const cap = App.state.settings.signaling.iceGatherTimeoutMs; |
| 1732 | if (cap > 0) return 'Probing the network for routable addresses. Up to ~' + Math.round(cap / 1000) + ' seconds.'; |
| 1733 | return 'Probing the network for routable addresses. No timeout — cancel manually if it stalls.'; |
| 1734 | } |
| 1735 | |
| 1736 | /* ------------------------------------------------------------------------- |
| 1737 | Codec: Opus SDP munging |
| 1738 | ------------------------------------------------------------------------- */ |
| 1739 | App.codec = (() => { |
| 1740 | /* Find Opus payload type in the m=audio section, then ensure an fmtp line |
| 1741 | exists for it with the params we want. */ |
| 1742 | function mungeOpus(sdp, opus) { |
| 1743 | if (!opus) return sdp; |
| 1744 | const lines = sdp.split(/\r?\n/); |
| 1745 | /* Locate audio m-section bounds */ |
| 1746 | let audioStart = -1, audioEnd = lines.length; |
| 1747 | for (let i = 0; i < lines.length; i++) { |
| 1748 | if (lines[i].startsWith('m=audio')) { audioStart = i; } |
| 1749 | else if (audioStart >= 0 && lines[i].startsWith('m=') && i > audioStart) { audioEnd = i; break; } |
| 1750 | } |
| 1751 | if (audioStart < 0) return sdp; |
| 1752 | |
| 1753 | /* Find Opus payload types */ |
| 1754 | const opusPts = []; |
| 1755 | for (let i = audioStart; i < audioEnd; i++) { |
| 1756 | const m = lines[i].match(/^a=rtpmap:(\d+)\s+opus\/(\d+)(?:\/(\d+))?/i); |
| 1757 | if (m) opusPts.push(m[1]); |
| 1758 | } |
| 1759 | if (!opusPts.length) return sdp; |
| 1760 | |
| 1761 | const params = []; |
| 1762 | if (opus.stereo) { params.push('stereo=1'); params.push('sprop-stereo=1'); } |
| 1763 | params.push('useinbandfec=' + (opus.fec ? 1 : 0)); |
| 1764 | if (opus.dtx) params.push('usedtx=1'); |
| 1765 | if (opus.cbr) params.push('cbr=1'); |
| 1766 | if (opus.maxAverageBitrate && opus.maxAverageBitrate > 0) |
| 1767 | params.push('maxaveragebitrate=' + opus.maxAverageBitrate); |
| 1768 | const want = params.join(';'); |
| 1769 | |
| 1770 | for (const pt of opusPts) { |
| 1771 | let found = false; |
| 1772 | for (let i = audioStart; i < audioEnd; i++) { |
| 1773 | if (lines[i].startsWith('a=fmtp:' + pt + ' ')) { |
| 1774 | /* Merge: drop any of the keys we're setting, keep the rest, append ours */ |
| 1775 | const existing = lines[i].slice(('a=fmtp:' + pt + ' ').length); |
| 1776 | const kept = existing.split(';') |
| 1777 | .map(s => s.trim()).filter(Boolean) |
| 1778 | .filter(kv => { |
| 1779 | const k = kv.split('=')[0].toLowerCase(); |
| 1780 | return !['stereo','sprop-stereo','useinbandfec','usedtx','cbr','maxaveragebitrate'].includes(k); |
| 1781 | }); |
| 1782 | const merged = [...kept, ...params.filter(Boolean)].join(';'); |
| 1783 | lines[i] = 'a=fmtp:' + pt + ' ' + merged; |
| 1784 | found = true; break; |
| 1785 | } |
| 1786 | } |
| 1787 | if (!found) { |
| 1788 | /* Insert after the matching rtpmap */ |
| 1789 | for (let i = audioStart; i < audioEnd; i++) { |
| 1790 | if (lines[i].match(new RegExp('^a=rtpmap:' + pt + '\\b'))) { |
| 1791 | lines.splice(i + 1, 0, 'a=fmtp:' + pt + ' ' + want); |
| 1792 | audioEnd++; break; |
| 1793 | } |
| 1794 | } |
| 1795 | } |
| 1796 | } |
| 1797 | return lines.join('\r\n'); |
| 1798 | } |
| 1799 | return { mungeOpus }; |
| 1800 | })(); |
| 1801 | |
| 1802 | /* ------------------------------------------------------------------------- |
| 1803 | Media: gUM/gDM, pre-allocated transceivers, replaceTrack |
| 1804 | |
| 1805 | Local capture (mic, cam, screen) happens once on App.state and is fanned |
| 1806 | out to every PeerCtx's sender via replaceTrack — so per-peer encoders |
| 1807 | share a single source track. Per-peer encoder parameters (bitrate, |
| 1808 | degradation, codec) live on the PeerCtx and are pushed via setParameters |
| 1809 | without renegotiation. |
| 1810 | ------------------------------------------------------------------------- */ |
| 1811 | App.media = (() => { |
| 1812 | /* Reorder a peer's codec list so the user's preferred RECEIVE codec is first. |
| 1813 | Must be called before createOffer or createAnswer for that peer. With |
| 1814 | 'auto' we don't touch the list, letting the browser's default order win. */ |
| 1815 | function applyVideoCodecPreference(peer) { |
| 1816 | const pref = App.state.settings.preferredVideoCodec; |
| 1817 | if (!pref || pref === 'auto') return; |
| 1818 | if (typeof RTCRtpSender === 'undefined' || !RTCRtpSender.getCapabilities) return; |
| 1819 | const caps = RTCRtpSender.getCapabilities('video'); |
| 1820 | if (!caps || !caps.codecs) return; |
| 1821 | const wanted = pref.toLowerCase(); |
| 1822 | const head = [], tail = []; |
| 1823 | for (const c of caps.codecs) { |
| 1824 | const sub = (c.mimeType || '').toLowerCase().split('/')[1] || ''; |
| 1825 | (sub === wanted ? head : tail).push(c); |
| 1826 | } |
| 1827 | if (!head.length) { App.log.warn('media', peer.label, 'preferred codec not available', pref); return; } |
| 1828 | const ordered = [...head, ...tail]; |
| 1829 | for (const t of peer.pc.getTransceivers()) { |
| 1830 | const kind = (t.receiver && t.receiver.track && t.receiver.track.kind) |
| 1831 | || (t.sender && t.sender.track && t.sender.track.kind); |
| 1832 | const isVideo = kind === 'video' |
| 1833 | || t === peer.camTransceiver |
| 1834 | || t === peer.screenTransceiver; |
| 1835 | if (!isVideo || !t.setCodecPreferences) continue; |
| 1836 | try { t.setCodecPreferences(ordered); } |
| 1837 | catch (e) { App.log.warn('media', peer.label, 'setCodecPreferences failed', e.message); } |
| 1838 | } |
| 1839 | App.log.info('media', peer.label, 'preferred video codec', pref); |
| 1840 | } |
| 1841 | |
| 1842 | /* Pre-allocate three transceivers on the initiator's pc so all toolbar |
| 1843 | actions are renegotiation-free (see plan). The joiner gets matching |
| 1844 | m-sections from setRemoteDescription and we index transceivers by |
| 1845 | position. */ |
| 1846 | function preallocate(peer) { |
| 1847 | peer.micTransceiver = peer.pc.addTransceiver('audio', { direction: 'sendrecv' }); |
| 1848 | peer.camTransceiver = peer.pc.addTransceiver('video', { direction: 'sendrecv' }); |
| 1849 | peer.screenTransceiver = peer.pc.addTransceiver('video', { direction: 'sendrecv' }); |
| 1850 | App.log.debug('media', peer.label, 'pre-allocated 1 audio + 2 video transceivers'); |
| 1851 | } |
| 1852 | function adoptTransceiversFromRemote(peer) { |
| 1853 | /* For the joiner: after setRemoteDescription, transceivers exist in |
| 1854 | the same order the initiator added them (mid 0, 1, 2). They were |
| 1855 | auto-created by SRD and default to recvonly because the joiner has |
| 1856 | no local tracks yet — but later enabling mic/cam on a recvonly |
| 1857 | transceiver would never send. Force sendrecv so the answer SDP |
| 1858 | advertises bidirectional intent. */ |
| 1859 | const ts = peer.pc.getTransceivers(); |
| 1860 | for (const t of ts) { |
| 1861 | try { t.direction = 'sendrecv'; } |
| 1862 | catch (e) { App.log.warn('media', peer.label, 'could not upgrade transceiver to sendrecv', e.message); } |
| 1863 | } |
| 1864 | peer.micTransceiver = ts[0] || null; |
| 1865 | peer.camTransceiver = ts[1] || null; |
| 1866 | peer.screenTransceiver = ts[2] || null; |
| 1867 | App.log.debug('media', peer.label, 'adopted', ts.length, 'transceivers from remote SDP'); |
| 1868 | } |
| 1869 | |
| 1870 | /* After a new peer's transceivers are set up, push the currently-live |
| 1871 | local tracks into them so the peer immediately receives whatever the |
| 1872 | user already enabled before they joined. */ |
| 1873 | async function publishLocalTracksTo(peer) { |
| 1874 | if (peer.micTransceiver && App.state.micTrack) { |
| 1875 | try { await peer.micTransceiver.sender.replaceTrack(App.state.micTrack); } |
| 1876 | catch (e) { App.log.warn('media', peer.label, 'publish mic failed', e.message); } |
| 1877 | } |
| 1878 | if (peer.camTransceiver && App.state.camTrack) { |
| 1879 | try { await peer.camTransceiver.sender.replaceTrack(App.state.camTrack); } |
| 1880 | catch (e) { App.log.warn('media', peer.label, 'publish cam failed', e.message); } |
| 1881 | } |
| 1882 | if (peer.screenTransceiver && App.state.screenStream) { |
| 1883 | const track = App.state.screenStream.getVideoTracks()[0]; |
| 1884 | if (track) { |
| 1885 | try { await peer.screenTransceiver.sender.replaceTrack(track); } |
| 1886 | catch (e) { App.log.warn('media', peer.label, 'publish screen failed', e.message); } |
| 1887 | } |
| 1888 | } |
| 1889 | applyCamSendParamsFor(peer); |
| 1890 | applyScreenSendParamsFor(peer); |
| 1891 | } |
| 1892 | |
| 1893 | /* The local preview MediaStream is a synthetic view: we add/remove tracks |
| 1894 | to it as the user enables/disables mic and camera from the toolbar. */ |
| 1895 | function localStream() { |
| 1896 | if (!App.state.localStream) App.state.localStream = new MediaStream(); |
| 1897 | return App.state.localStream; |
| 1898 | } |
| 1899 | function setLocalTrack(kind, track) { |
| 1900 | const s = localStream(); |
| 1901 | s.getTracks().filter(t => t.kind === kind).forEach(t => s.removeTrack(t)); |
| 1902 | if (track) s.addTrack(track); |
| 1903 | if (kind === 'audio') App.state.micTrack = track || null; |
| 1904 | if (kind === 'video') App.state.camTrack = track || null; |
| 1905 | refreshLocalDisplay(); |
| 1906 | } |
| 1907 | /* Decide what plays in the main tile vs the corner PIP for the local side. |
| 1908 | Screen share takes the main tile; the cam moves to the PIP. */ |
| 1909 | function refreshLocalDisplay() { |
| 1910 | const main = document.getElementById('vid-local-main'); |
| 1911 | const pip = document.getElementById('vid-local-pip'); |
| 1912 | const pipWrap = document.getElementById('pip-local'); |
| 1913 | const tile = document.getElementById('tile-local'); |
| 1914 | if (!main || !tile) return; |
| 1915 | const camStream = App.state.localStream; |
| 1916 | const hasCam = camStream && camStream.getVideoTracks().length > 0; |
| 1917 | const screenStream = App.state.screenStream; |
| 1918 | const hasScreen = !!screenStream; |
| 1919 | if (hasScreen) { |
| 1920 | main.srcObject = screenStream; |
| 1921 | tile.classList.add('screen'); |
| 1922 | if (hasCam) { pip.srcObject = camStream; pipWrap.classList.remove('hidden'); } |
| 1923 | else { pip.srcObject = null; pipWrap.classList.add('hidden'); } |
| 1924 | } else if (hasCam) { |
| 1925 | main.srcObject = camStream; |
| 1926 | tile.classList.remove('screen'); |
| 1927 | pip.srcObject = null; pipWrap.classList.add('hidden'); |
| 1928 | } else { |
| 1929 | main.srcObject = null; |
| 1930 | tile.classList.remove('screen'); |
| 1931 | pip.srcObject = null; pipWrap.classList.add('hidden'); |
| 1932 | } |
| 1933 | tile.classList.toggle('empty', !hasCam && !hasScreen); |
| 1934 | const micOn = !!App.state.micTrack; |
| 1935 | const m = document.getElementById('mic-muted-local'); |
| 1936 | if (m) m.classList.toggle('hidden', micOn); |
| 1937 | } |
| 1938 | /* Refresh the per-peer remote tile (video / pip / mic-muted badge). The |
| 1939 | tile DOM is created and managed by tilesUI; we just push current |
| 1940 | srcObjects + visibility into it. */ |
| 1941 | function refreshRemoteDisplayFor(peer) { |
| 1942 | const tile = document.getElementById('tile-' + peer.id); |
| 1943 | if (!tile) return; |
| 1944 | const main = tile.querySelector('.vid-main'); |
| 1945 | const pip = tile.querySelector('.vid-pip'); |
| 1946 | const pipWrap = tile.querySelector('.pip'); |
| 1947 | const audioEl = tile.querySelector('audio.audio-remote'); |
| 1948 | const camStream = peer.remoteStream; |
| 1949 | const screenStream = peer.remoteScreenStream; |
| 1950 | /* Always route the peer's audio through a dedicated audio element so it |
| 1951 | plays regardless of whether any video is currently visible. */ |
| 1952 | if (audioEl && audioEl.srcObject !== camStream) audioEl.srcObject = camStream || null; |
| 1953 | /* Track presence isn't enough — replaceTrack(null) on the sender leaves |
| 1954 | the receiver's track in place (frozen on last frame). Trust the peer's |
| 1955 | broadcast media state when deciding whether to show video. */ |
| 1956 | const ms = peer.peerMediaState || { mic: false, cam: false, screen: false }; |
| 1957 | const hasCam = ms.cam && camStream && camStream.getVideoTracks().length > 0; |
| 1958 | const hasScreen = ms.screen && screenStream && screenStream.getVideoTracks().length > 0; |
| 1959 | if (hasScreen) { |
| 1960 | main.srcObject = screenStream; |
| 1961 | tile.classList.add('screen'); |
| 1962 | if (hasCam) { pip.srcObject = camStream; pipWrap.classList.remove('hidden'); } |
| 1963 | else { pip.srcObject = null; pipWrap.classList.add('hidden'); } |
| 1964 | } else if (hasCam) { |
| 1965 | main.srcObject = camStream; |
| 1966 | tile.classList.remove('screen'); |
| 1967 | pip.srcObject = null; pipWrap.classList.add('hidden'); |
| 1968 | } else { |
| 1969 | /* Keep audio attached even when not showing video, so the peer's mic |
| 1970 | still plays through. */ |
| 1971 | main.srcObject = camStream || null; |
| 1972 | tile.classList.remove('screen'); |
| 1973 | pip.srcObject = null; pipWrap.classList.add('hidden'); |
| 1974 | } |
| 1975 | tile.classList.toggle('empty', !hasCam && !hasScreen); |
| 1976 | const m = tile.querySelector('.mic-muted'); |
| 1977 | if (m) m.classList.toggle('hidden', ms.mic); |
| 1978 | } |
| 1979 | function refreshRemoteDisplay() { |
| 1980 | for (const peer of App.state.peers.values()) refreshRemoteDisplayFor(peer); |
| 1981 | } |
| 1982 | /* In loopback mode, each loopback peer's pcB needs to "see" the same tracks |
| 1983 | pcA is sending so the remote tile gets video back. Called whenever a |
| 1984 | sender track changes; iterates every loopback peer. */ |
| 1985 | function mirrorToLoopback() { |
| 1986 | const a = App.state.micTrack; |
| 1987 | const v = App.state.camTrack; |
| 1988 | const s = App.state.screenStream && App.state.screenStream.getVideoTracks()[0] || null; |
| 1989 | const fail = (label, peerLabel) => err => |
| 1990 | App.log.warn('loopback', peerLabel + ' mirror ' + label + ' failed', err.message); |
| 1991 | for (const peer of App.state.peers.values()) { |
| 1992 | const pcB = peer.loopbackB; |
| 1993 | if (!pcB) continue; |
| 1994 | const ts = pcB.getTransceivers(); |
| 1995 | if (ts[0]) ts[0].sender.replaceTrack(a || null).catch(fail('mic', peer.label)); |
| 1996 | if (ts[1]) ts[1].sender.replaceTrack(v || null).catch(fail('cam', peer.label)); |
| 1997 | if (ts[2]) ts[2].sender.replaceTrack(s || null).catch(fail('screen', peer.label)); |
| 1998 | } |
| 1999 | } |
| 2000 | /* Fan-out the local track-state to every peer's sender. Failures on one |
| 2001 | peer don't block the others. */ |
| 2002 | async function fanOutTrack(getTransceiver, track, label) { |
| 2003 | const tasks = []; |
| 2004 | for (const peer of App.state.peers.values()) { |
| 2005 | const tr = getTransceiver(peer); |
| 2006 | if (!tr) continue; |
| 2007 | tasks.push( |
| 2008 | tr.sender.replaceTrack(track).catch(e => |
| 2009 | App.log.warn('media', peer.label, 'replaceTrack ' + label + ' failed', e.message)) |
| 2010 | ); |
| 2011 | } |
| 2012 | if (tasks.length) await Promise.allSettled(tasks); |
| 2013 | } |
| 2014 | function gumAvailable() { |
| 2015 | return !!(navigator.mediaDevices && navigator.mediaDevices.getUserMedia); |
| 2016 | } |
| 2017 | |
| 2018 | /* Detect "device unplugged while active": the track fires 'ended'. Flip the |
| 2019 | toolbar button off so the UI reflects reality and the user can pick a |
| 2020 | different device. We guard with App.state.micTrack/camTrack === track to |
| 2021 | ignore the ended event that fires when *we* swap the track via |
| 2022 | replaceTrack(). */ |
| 2023 | function attachTrackEndedHandler(track, kind) { |
| 2024 | track.addEventListener('ended', () => { |
| 2025 | const live = kind === 'mic' ? App.state.micTrack : App.state.camTrack; |
| 2026 | if (live !== track) return; |
| 2027 | const label = kind === 'mic' ? 'Microphone' : 'Camera'; |
| 2028 | App.log.warn('media', kind + ' track ended unexpectedly'); |
| 2029 | App.chat.appendSystem?.(label + ' disconnected.'); |
| 2030 | if (kind === 'mic') setMic(false); else setCam(false); |
| 2031 | }); |
| 2032 | } |
| 2033 | |
| 2034 | async function setMic(on) { |
| 2035 | const btn = document.getElementById('tb-mic'); |
| 2036 | if (on) { |
| 2037 | if (!gumAvailable()) { |
| 2038 | App.log.warn('media', 'mic unavailable (insecure context?)'); |
| 2039 | App.chat.appendSystem?.('Microphone unavailable — this page must be served over HTTPS or localhost.'); |
| 2040 | return; |
| 2041 | } |
| 2042 | const a = App.state.settings.audio; |
| 2043 | let stream = null; |
| 2044 | try { |
| 2045 | stream = await navigator.mediaDevices.getUserMedia({ |
| 2046 | audio: { |
| 2047 | echoCancellation: a.echoCancellation, |
| 2048 | noiseSuppression: a.noiseSuppression, |
| 2049 | autoGainControl: a.autoGainControl, |
| 2050 | channelCount: a.channelCount || undefined, |
| 2051 | sampleRate: a.sampleRate || undefined, |
| 2052 | deviceId: a.deviceId ? { exact: a.deviceId } : undefined, |
| 2053 | }, |
| 2054 | }); |
| 2055 | const track = stream.getAudioTracks()[0]; |
| 2056 | setLocalTrack('audio', track); |
| 2057 | attachTrackEndedHandler(track, 'mic'); |
| 2058 | await fanOutTrack(p => p.micTransceiver, track, 'mic'); |
| 2059 | mirrorToLoopback(); |
| 2060 | if (btn) { |
| 2061 | btn.classList.add('on'); btn.classList.remove('off'); |
| 2062 | btn.querySelector('.nowrap').textContent = 'Mic on'; |
| 2063 | } |
| 2064 | App.log.info('media', 'mic on'); |
| 2065 | applyMediaButtonAvailability?.(); |
| 2066 | } catch (e) { |
| 2067 | /* If the saved device disappeared between sessions, fall back to the |
| 2068 | OS default rather than trapping the user with a broken preference. */ |
| 2069 | if (e && e.name === 'OverconstrainedError' && a.deviceId) { |
| 2070 | App.log.warn('media', 'saved mic deviceId no longer available, clearing'); |
| 2071 | a.deviceId = ''; |
| 2072 | } |
| 2073 | App.log.error('media', 'mic getUserMedia failed', e.message); |
| 2074 | App.chat.appendSystem?.('Microphone failed: ' + e.message); |
| 2075 | if (stream) stream.getTracks().forEach(t => t.stop()); |
| 2076 | } |
| 2077 | } else { |
| 2078 | const t = App.state.micTrack; |
| 2079 | if (t) t.stop(); |
| 2080 | setLocalTrack('audio', null); |
| 2081 | await fanOutTrack(p => p.micTransceiver, null, 'mic'); |
| 2082 | mirrorToLoopback(); |
| 2083 | if (btn) { |
| 2084 | btn.classList.remove('on'); btn.classList.add('off'); |
| 2085 | btn.querySelector('.nowrap').textContent = 'Mic off'; |
| 2086 | } |
| 2087 | App.log.info('media', 'mic off'); |
| 2088 | } |
| 2089 | broadcastMediaState(); |
| 2090 | } |
| 2091 | |
| 2092 | async function setCam(on) { |
| 2093 | const btn = document.getElementById('tb-cam'); |
| 2094 | if (on) { |
| 2095 | if (!gumAvailable()) { |
| 2096 | App.log.warn('media', 'camera unavailable (insecure context?)'); |
| 2097 | App.chat.appendSystem?.('Camera unavailable — this page must be served over HTTPS or localhost.'); |
| 2098 | return; |
| 2099 | } |
| 2100 | const vs = App.state.settings.video; |
| 2101 | let stream = null; |
| 2102 | try { |
| 2103 | stream = await navigator.mediaDevices.getUserMedia({ |
| 2104 | video: { |
| 2105 | width: vs.width || undefined, |
| 2106 | height: vs.height || undefined, |
| 2107 | frameRate: vs.frameRate || undefined, |
| 2108 | deviceId: vs.deviceId ? { exact: vs.deviceId } : undefined, |
| 2109 | }, |
| 2110 | }); |
| 2111 | const track = stream.getVideoTracks()[0]; |
| 2112 | setLocalTrack('video', track); |
| 2113 | attachTrackEndedHandler(track, 'cam'); |
| 2114 | await fanOutTrack(p => p.camTransceiver, track, 'cam'); |
| 2115 | applyCamSendParamsAll(); |
| 2116 | mirrorToLoopback(); |
| 2117 | if (btn) { |
| 2118 | btn.classList.add('on'); btn.classList.remove('off'); |
| 2119 | btn.querySelector('.nowrap').textContent = 'Cam on'; |
| 2120 | } |
| 2121 | App.log.info('media', 'cam on'); |
| 2122 | applyMediaButtonAvailability?.(); |
| 2123 | } catch (e) { |
| 2124 | if (e && e.name === 'OverconstrainedError' && vs.deviceId) { |
| 2125 | App.log.warn('media', 'saved cam deviceId no longer available, clearing'); |
| 2126 | vs.deviceId = ''; |
| 2127 | } |
| 2128 | App.log.error('media', 'camera getUserMedia failed', e.message); |
| 2129 | App.chat.appendSystem?.('Camera failed: ' + e.message); |
| 2130 | if (stream) stream.getTracks().forEach(t => t.stop()); |
| 2131 | } |
| 2132 | } else { |
| 2133 | const t = App.state.camTrack; |
| 2134 | if (t) t.stop(); |
| 2135 | setLocalTrack('video', null); |
| 2136 | await fanOutTrack(p => p.camTransceiver, null, 'cam'); |
| 2137 | mirrorToLoopback(); |
| 2138 | if (btn) { |
| 2139 | btn.classList.remove('on'); btn.classList.add('off'); |
| 2140 | btn.querySelector('.nowrap').textContent = 'Cam off'; |
| 2141 | } |
| 2142 | App.log.info('media', 'cam off'); |
| 2143 | } |
| 2144 | broadcastMediaState(); |
| 2145 | } |
| 2146 | |
| 2147 | async function startScreenshare() { |
| 2148 | if (!navigator.mediaDevices || !navigator.mediaDevices.getDisplayMedia) { |
| 2149 | throw new Error('Screen share requires HTTPS (or localhost). Open this page over a secure context.'); |
| 2150 | } |
| 2151 | const ss = App.state.settings.screen; |
| 2152 | const ms = await navigator.mediaDevices.getDisplayMedia({ |
| 2153 | video: { |
| 2154 | width: ss.width || undefined, |
| 2155 | height: ss.height || undefined, |
| 2156 | frameRate: ss.frameRate || undefined, |
| 2157 | }, |
| 2158 | audio: false, |
| 2159 | }); |
| 2160 | App.state.screenStream = ms; |
| 2161 | const track = ms.getVideoTracks()[0]; |
| 2162 | track.addEventListener('ended', () => stopScreenshare()); |
| 2163 | await fanOutTrack(p => p.screenTransceiver, track, 'screen'); |
| 2164 | applyScreenSendParamsAll(); |
| 2165 | mirrorToLoopback(); |
| 2166 | refreshLocalDisplay(); |
| 2167 | const sBtn = document.getElementById('tb-screen'); |
| 2168 | if (sBtn) { |
| 2169 | sBtn.classList.add('on'); sBtn.classList.remove('off'); |
| 2170 | sBtn.querySelector('.nowrap').textContent = 'Sharing'; |
| 2171 | } |
| 2172 | App.log.info('media', 'screenshare started'); |
| 2173 | broadcastMediaState(); |
| 2174 | } |
| 2175 | async function stopScreenshare() { |
| 2176 | const ms = App.state.screenStream; |
| 2177 | if (ms) ms.getTracks().forEach(t => t.stop()); |
| 2178 | App.state.screenStream = null; |
| 2179 | await fanOutTrack(p => p.screenTransceiver, null, 'screen'); |
| 2180 | mirrorToLoopback(); |
| 2181 | refreshLocalDisplay(); |
| 2182 | const sBtn = document.getElementById('tb-screen'); |
| 2183 | if (sBtn) { |
| 2184 | sBtn.classList.remove('on'); sBtn.classList.add('off'); |
| 2185 | sBtn.querySelector('.nowrap').textContent = 'Screen off'; |
| 2186 | } |
| 2187 | App.log.info('media', 'screenshare stopped'); |
| 2188 | broadcastMediaState(); |
| 2189 | } |
| 2190 | |
| 2191 | /* Collect the relevant sender for one peer (and its loopback mirror, if |
| 2192 | any) for a given track kind ('cam' | 'screen'). */ |
| 2193 | function senderFor(peer, kind) { |
| 2194 | const tr = kind === 'screen' ? peer.screenTransceiver : peer.camTransceiver; |
| 2195 | return tr ? tr.sender : null; |
| 2196 | } |
| 2197 | /* For a loopback peer, returns pcB's reverse sender for this track kind |
| 2198 | (the one that mirrors A's track back so peer.remoteStream picks it up). |
| 2199 | Transceivers on pcB are in mic/cam/screen order via preallocate's m-section |
| 2200 | ordering. */ |
| 2201 | function loopbackMirrorSender(peer, kind) { |
| 2202 | if (!peer.loopbackB) return null; |
| 2203 | const tIdx = kind === 'screen' ? 2 : 1; |
| 2204 | const t = peer.loopbackB.getTransceivers()[tIdx]; |
| 2205 | return t ? t.sender : null; |
| 2206 | } |
| 2207 | /* setParameters is transactional via an internal transactionId attached to |
| 2208 | the params object returned by getParameters. Two interleaved |
| 2209 | get/mutate/set cycles on the same sender race and the second can fail |
| 2210 | with InvalidModificationError. Coalesce bitrate + degradation into one |
| 2211 | round-trip per sender, and serialize calls via a per-sender chain. */ |
| 2212 | const pendingByS = new WeakMap(); /* sender -> Promise (most recent set) */ |
| 2213 | function applyVideoSendParamsToSender(sender, kbps, pref, wantCodec, logLabel) { |
| 2214 | if (!sender) return; |
| 2215 | const prev = pendingByS.get(sender) || Promise.resolve(); |
| 2216 | const next = prev.then(() => { |
| 2217 | const params = sender.getParameters(); |
| 2218 | if (!params.encodings || !params.encodings[0]) params.encodings = [{}]; |
| 2219 | if (kbps && kbps > 0) params.encodings[0].maxBitrate = kbps * 1000; |
| 2220 | else delete params.encodings[0].maxBitrate; |
| 2221 | if (pref) params.degradationPreference = pref; |
| 2222 | /* encodings[0].codec is the "set sending codec" API. Pick from the |
| 2223 | negotiated codec list on the sender — if the codec we want isn't |
| 2224 | there (e.g. peer didn't offer it, or browser doesn't expose |
| 2225 | params.codecs yet), leave the field unset so the browser keeps |
| 2226 | picking automatically. */ |
| 2227 | if (wantCodec === 'auto') { |
| 2228 | delete params.encodings[0].codec; |
| 2229 | } else if (params.codecs && params.codecs.length) { |
| 2230 | const pick = params.codecs.find(c => { |
| 2231 | const sub = (c.mimeType || '').split('/')[1] || ''; |
| 2232 | return sub.toLowerCase() === wantCodec; |
| 2233 | }); |
| 2234 | if (pick) params.encodings[0].codec = pick; |
| 2235 | else App.log.warn('media', logLabel, 'send codec not in negotiated set', wantCodec); |
| 2236 | } |
| 2237 | return sender.setParameters(params).then( |
| 2238 | () => App.log.info('media', logLabel, 'params', kbps ? kbps + ' kbps' : 'unset', pref || '', 'send', wantCodec), |
| 2239 | e => App.log.error('media', logLabel, 'setParameters failed', e.message) |
| 2240 | ); |
| 2241 | }); |
| 2242 | pendingByS.set(sender, next); |
| 2243 | } |
| 2244 | /* Apply this peer's per-peer cam encoding params. For loopback peers we |
| 2245 | also push the same params onto pcB's mirror sender so the cap is visible |
| 2246 | on the received-side stream too. */ |
| 2247 | function applyCamSendParamsFor(peer) { |
| 2248 | const codec = (peer.sendVideoCodec || 'auto').toLowerCase(); |
| 2249 | applyVideoSendParamsToSender( |
| 2250 | senderFor(peer, 'cam'), |
| 2251 | peer.videoMaxBitrateKbps, |
| 2252 | peer.videoDegradationPreference, |
| 2253 | codec, |
| 2254 | 'cam[' + peer.label + ']'); |
| 2255 | const lb = loopbackMirrorSender(peer, 'cam'); |
| 2256 | if (lb) applyVideoSendParamsToSender(lb, peer.videoMaxBitrateKbps, peer.videoDegradationPreference, codec, 'cam[' + peer.label + '/B]'); |
| 2257 | } |
| 2258 | function applyScreenSendParamsFor(peer) { |
| 2259 | const codec = (peer.sendVideoCodec || 'auto').toLowerCase(); |
| 2260 | applyVideoSendParamsToSender( |
| 2261 | senderFor(peer, 'screen'), |
| 2262 | peer.screenMaxBitrateKbps, |
| 2263 | peer.screenDegradationPreference, |
| 2264 | codec, |
| 2265 | 'screen[' + peer.label + ']'); |
| 2266 | const lb = loopbackMirrorSender(peer, 'screen'); |
| 2267 | if (lb) applyVideoSendParamsToSender(lb, peer.screenMaxBitrateKbps, peer.screenDegradationPreference, codec, 'screen[' + peer.label + '/B]'); |
| 2268 | } |
| 2269 | /* Fan out the current per-peer params to every live peer. Each peer's |
| 2270 | loopback mirror (if any) is updated inside its applyCam/Screen call. */ |
| 2271 | function applyCamSendParamsAll() { |
| 2272 | for (const peer of App.state.peers.values()) applyCamSendParamsFor(peer); |
| 2273 | } |
| 2274 | function applyScreenSendParamsAll() { |
| 2275 | for (const peer of App.state.peers.values()) applyScreenSendParamsFor(peer); |
| 2276 | } |
| 2277 | async function applyAudioConstraints() { |
| 2278 | const t = App.state.micTrack; |
| 2279 | if (!t) return; |
| 2280 | const a = App.state.settings.audio; |
| 2281 | try { |
| 2282 | await t.applyConstraints({ |
| 2283 | echoCancellation: a.echoCancellation, |
| 2284 | noiseSuppression: a.noiseSuppression, |
| 2285 | autoGainControl: a.autoGainControl, |
| 2286 | }); |
| 2287 | App.log.info('media', 'audio constraints applied', t.getSettings()); |
| 2288 | } catch (e) { |
| 2289 | App.log.warn('media', 'applyConstraints failed', e.message); |
| 2290 | } |
| 2291 | } |
| 2292 | |
| 2293 | /* Live device switch: grab the new track, fan-out replaceTrack across all |
| 2294 | peers, then stop the old one. No off→on cycle, so no black-frame flicker |
| 2295 | for any peer and no period where the OS mic indicator drops. Returns the |
| 2296 | new deviceId on success, or null on failure (caller keeps prior selection). */ |
| 2297 | async function switchInputDevice(kind, deviceId) { |
| 2298 | const oldTrack = kind === 'mic' ? App.state.micTrack : App.state.camTrack; |
| 2299 | if (!oldTrack) return null; |
| 2300 | if (!gumAvailable()) return null; |
| 2301 | const a = App.state.settings.audio; |
| 2302 | const vs = App.state.settings.video; |
| 2303 | let stream = null; |
| 2304 | try { |
| 2305 | const constraints = kind === 'mic' |
| 2306 | ? { audio: { |
| 2307 | echoCancellation: a.echoCancellation, |
| 2308 | noiseSuppression: a.noiseSuppression, |
| 2309 | autoGainControl: a.autoGainControl, |
| 2310 | channelCount: a.channelCount || undefined, |
| 2311 | sampleRate: a.sampleRate || undefined, |
| 2312 | deviceId: deviceId ? { exact: deviceId } : undefined, |
| 2313 | } } |
| 2314 | : { video: { |
| 2315 | width: vs.width || undefined, |
| 2316 | height: vs.height || undefined, |
| 2317 | frameRate: vs.frameRate || undefined, |
| 2318 | deviceId: deviceId ? { exact: deviceId } : undefined, |
| 2319 | } }; |
| 2320 | stream = await navigator.mediaDevices.getUserMedia(constraints); |
| 2321 | const newTrack = kind === 'mic' ? stream.getAudioTracks()[0] : stream.getVideoTracks()[0]; |
| 2322 | setLocalTrack(kind === 'mic' ? 'audio' : 'video', newTrack); |
| 2323 | await fanOutTrack( |
| 2324 | p => kind === 'mic' ? p.micTransceiver : p.camTransceiver, |
| 2325 | newTrack, kind); |
| 2326 | if (oldTrack !== newTrack) oldTrack.stop(); |
| 2327 | attachTrackEndedHandler(newTrack, kind); |
| 2328 | if (kind === 'cam') applyCamSendParamsAll(); |
| 2329 | mirrorToLoopback(); |
| 2330 | App.log.info('media', kind + ' switched', { requested: deviceId || '(default)', got: newTrack.getSettings ? newTrack.getSettings().deviceId : '?' }); |
| 2331 | return deviceId || ''; |
| 2332 | } catch (e) { |
| 2333 | App.log.error('media', kind + ' switch failed', e.message); |
| 2334 | App.chat.appendSystem?.('Failed to switch ' + (kind === 'mic' ? 'microphone' : 'camera') + ': ' + e.message); |
| 2335 | if (stream) stream.getTracks().forEach(t => t.stop()); |
| 2336 | return null; |
| 2337 | } |
| 2338 | } |
| 2339 | |
| 2340 | return { |
| 2341 | preallocate, adoptTransceiversFromRemote, applyVideoCodecPreference, publishLocalTracksTo, |
| 2342 | refreshRemoteDisplayFor, applyCamSendParamsFor, applyScreenSendParamsFor, |
| 2343 | applyCamSendParamsAll, applyScreenSendParamsAll, |
| 2344 | startScreenshare, stopScreenshare, |
| 2345 | setMic, setCam, |
| 2346 | switchInputDevice, |
| 2347 | applyAudioConstraints, |
| 2348 | refreshLocalDisplay, refreshRemoteDisplay, |
| 2349 | mirrorToLoopback, |
| 2350 | }; |
| 2351 | })(); |
| 2352 | |
| 2353 | /* ------------------------------------------------------------------------- |
| 2354 | Chat |
| 2355 | ------------------------------------------------------------------------- */ |
| 2356 | App.chat = (() => { |
| 2357 | /* Limits are measured in UTF-8 bytes (the wire size), not UTF-16 code |
| 2358 | units. A 64 KB code-unit cap could let a non-ASCII payload through at |
| 2359 | up to ~256 KB on the wire; checking bytes prevents that. */ |
| 2360 | const MAX_CHAT_MSG = 64 * 1024; |
| 2361 | const MAX_TEXT = 8 * 1024; |
| 2362 | const MAX_NAME = 64; |
| 2363 | const ID_RE = /^[A-Za-z0-9_\-]{1,24}$/; |
| 2364 | const utf8Length = s => new TextEncoder().encode(s).length; |
| 2365 | function newMsgId() { |
| 2366 | return Date.now().toString(36) + Math.random().toString(36).slice(2, 8); |
| 2367 | } |
| 2368 | /* Outgoing-message delivery tracking. msgId -> { recipients: Map<peerId, |
| 2369 | 'sent'|'acked'|'failed'|'closed'>, text, ts, el }. Used to render the |
| 2370 | per-recipient delivery popup when the user clicks one of their own |
| 2371 | messages. */ |
| 2372 | const outMsgs = new Map(); |
| 2373 | |
| 2374 | /* Each peer's chat data channel is attached here. The peer arg is the |
| 2375 | PeerCtx so we can tag incoming messages with the sender and update |
| 2376 | per-peer media-state. */ |
| 2377 | function attach(peer, dc) { |
| 2378 | dc.binaryType = 'arraybuffer'; |
| 2379 | dc.onopen = () => { |
| 2380 | App.log.info('chat', peer.label, 'data channel open'); |
| 2381 | appendSystem(displayNameOf(peer) + ' connected'); |
| 2382 | /* Push our current media state + username so the peer's UI matches |
| 2383 | reality from the moment the channel opens. */ |
| 2384 | sendMediaStateTo(peer); |
| 2385 | sendUsernameTo(peer); |
| 2386 | setInCallControlsEnabled(); |
| 2387 | }; |
| 2388 | dc.onclose = () => { App.log.info('chat', peer.label, 'data channel closed'); setInCallControlsEnabled(); }; |
| 2389 | dc.onerror = e => App.log.error('chat', peer.label, 'error', e.error ? e.error.message : e); |
| 2390 | dc.onmessage = e => { |
| 2391 | if (typeof e.data !== 'string') { App.log.warn('chat', peer.label, 'binary payload rejected'); return; } |
| 2392 | if (e.data.length > MAX_CHAT_MSG) { App.log.warn('chat', peer.label, 'oversized message rejected', e.data.length); return; } |
| 2393 | if (utf8Length(e.data) > MAX_CHAT_MSG) { App.log.warn('chat', peer.label, 'oversized message rejected (bytes)'); return; } |
| 2394 | let m; |
| 2395 | try { m = JSON.parse(e.data); } |
| 2396 | catch (err) { App.log.warn('chat', peer.label, 'bad json', err.message); return; } |
| 2397 | if (!m || typeof m !== 'object' || typeof m.kind !== 'string') return; |
| 2398 | if (m.kind === 'msg') { |
| 2399 | if (typeof m.text !== 'string') return; |
| 2400 | if (m.text.length > MAX_TEXT || utf8Length(m.text) > MAX_TEXT) return; |
| 2401 | const ts = Number.isFinite(m.ts) ? m.ts : Date.now(); |
| 2402 | append(false, m.text, ts, displayNameOf(peer)); |
| 2403 | /* Ack the message so the sender can mark this peer 'delivered'. */ |
| 2404 | if (typeof m.id === 'string' && ID_RE.test(m.id)) { |
| 2405 | try { dc.send(JSON.stringify({ kind: 'msg-ack', id: m.id })); } |
| 2406 | catch (_) {} |
| 2407 | } |
| 2408 | } else if (m.kind === 'msg-ack') { |
| 2409 | if (typeof m.id !== 'string' || !ID_RE.test(m.id)) return; |
| 2410 | const rec = outMsgs.get(m.id); |
| 2411 | if (!rec) return; |
| 2412 | const r = rec.recipients.get(peer.id); |
| 2413 | if (r && r !== 'failed' && r !== 'closed') { |
| 2414 | rec.recipients.set(peer.id, 'acked'); |
| 2415 | refreshMsgDetail(m.id); |
| 2416 | } |
| 2417 | } else if (m.kind === 'media-state') { |
| 2418 | peer.peerMediaState = { mic: !!m.mic, cam: !!m.cam, screen: !!m.screen }; |
| 2419 | App.media.refreshRemoteDisplayFor(peer); |
| 2420 | } else if (m.kind === 'username') { |
| 2421 | if (typeof m.name !== 'string') return; |
| 2422 | const cleaned = m.name.trim().slice(0, MAX_NAME) || 'Anonymous'; |
| 2423 | const old = displayNameOf(peer); |
| 2424 | peer.username = cleaned; |
| 2425 | if (old !== displayNameOf(peer)) { |
| 2426 | App.tiles?.refreshLabel(peer); |
| 2427 | App.ui.refreshPeerWidgets?.(); |
| 2428 | appendSystem(old + ' is now ' + displayNameOf(peer)); |
| 2429 | } |
| 2430 | } else if (m.kind === 'bye') { |
| 2431 | onPeerLeft(peer, 'remote'); |
| 2432 | } |
| 2433 | /* unknown kinds: silently ignore */ |
| 2434 | }; |
| 2435 | } |
| 2436 | /* Fan out a chat message to every peer with an open chat channel (or the |
| 2437 | subset given via opts.peers). The returned message id is also embedded |
| 2438 | in the wire payload so receivers can ack it back. */ |
| 2439 | function send(text, opts) { |
| 2440 | const peers = (opts && opts.peers) || (App.ui.selectedChatPeers ? App.ui.selectedChatPeers() : peersWithOpenChat()); |
| 2441 | if (!peers.length) { App.log.warn('chat', 'no recipients selected'); return; } |
| 2442 | const id = newMsgId(); |
| 2443 | const msg = { kind: 'msg', id, text, ts: Date.now() }; |
| 2444 | const payload = JSON.stringify(msg); |
| 2445 | const recipients = new Map(); |
| 2446 | for (const peer of peers) { |
| 2447 | try { |
| 2448 | peer.dcChat.send(payload); |
| 2449 | recipients.set(peer.id, 'sent'); |
| 2450 | } catch (e) { |
| 2451 | App.log.warn('chat', peer.label, 'send failed', e.message); |
| 2452 | recipients.set(peer.id, 'failed'); |
| 2453 | } |
| 2454 | } |
| 2455 | const el = append(true, text, msg.ts, 'you', id); |
| 2456 | outMsgs.set(id, { recipients, text, ts: msg.ts, el }); |
| 2457 | refreshMsgDetail(id); |
| 2458 | } |
| 2459 | /* Application-level hangup signal. Sent best-effort right before we tear |
| 2460 | a connection down so the peer can react instantly instead of waiting |
| 2461 | for ICE consent freshness to time out (~10–30 s). Skipped in loopback |
| 2462 | because pcB echoes chat messages back to pcA — a bye would round-trip |
| 2463 | and spuriously trigger the peer-left handler on the local user. */ |
| 2464 | function sendByeTo(peer) { |
| 2465 | if (peer.role === 'loopback') return; |
| 2466 | const dc = peer.dcChat; |
| 2467 | if (!dc || dc.readyState !== 'open') return; |
| 2468 | try { dc.send(JSON.stringify({ kind: 'bye' })); } catch (_) {} |
| 2469 | } |
| 2470 | function sendByeAll() { |
| 2471 | for (const peer of App.state.peers.values()) sendByeTo(peer); |
| 2472 | } |
| 2473 | function sendUsernameTo(peer) { |
| 2474 | const dc = peer.dcChat; |
| 2475 | if (!dc || dc.readyState !== 'open') return; |
| 2476 | try { dc.send(JSON.stringify({ kind: 'username', name: App.state.username })); } |
| 2477 | catch (e) { App.log.warn('chat', peer.label, 'username send failed', e.message); } |
| 2478 | } |
| 2479 | function broadcastUsername() { |
| 2480 | for (const peer of peersWithOpenChat()) sendUsernameTo(peer); |
| 2481 | } |
| 2482 | function append(mine, text, ts, who, msgId) { |
| 2483 | const log = document.getElementById('chat-log'); |
| 2484 | if (!log) return null; |
| 2485 | const el = document.createElement('div'); |
| 2486 | el.className = 'chat-msg' + (mine ? ' me' : '') + (mine && msgId ? ' has-detail' : ''); |
| 2487 | const meta = mine ? new Date(ts).toLocaleTimeString() |
| 2488 | : (who || 'peer') + ' · ' + new Date(ts).toLocaleTimeString(); |
| 2489 | el.innerHTML = '<div class="text"></div><div class="meta"></div><div class="detail"></div>'; |
| 2490 | el.querySelector('.text').textContent = text; |
| 2491 | el.querySelector('.meta').textContent = meta; |
| 2492 | if (mine && msgId) { |
| 2493 | el.dataset.msgId = msgId; |
| 2494 | el.addEventListener('click', () => el.classList.toggle('open')); |
| 2495 | } |
| 2496 | log.appendChild(el); |
| 2497 | log.scrollTop = log.scrollHeight; |
| 2498 | return el; |
| 2499 | } |
| 2500 | /* Re-render the per-recipient delivery detail block for one outgoing msg. */ |
| 2501 | function refreshMsgDetail(id) { |
| 2502 | const rec = outMsgs.get(id); |
| 2503 | if (!rec || !rec.el) return; |
| 2504 | const detail = rec.el.querySelector('.detail'); |
| 2505 | if (!detail) return; |
| 2506 | const totals = { acked: 0, sent: 0, failed: 0, closed: 0 }; |
| 2507 | const rows = []; |
| 2508 | for (const [peerId, state] of rec.recipients) { |
| 2509 | totals[state] = (totals[state] || 0) + 1; |
| 2510 | const peer = App.state.peers.get(peerId); |
| 2511 | const name = peer ? displayNameOf(peer) : ('peer ' + peerId.slice(0, 4)); |
| 2512 | rows.push(`<div class="row"><span>${escapeHtml(name)}</span><span class="state ${state}">${state}</span></div>`); |
| 2513 | } |
| 2514 | /* One-line summary appears in .meta after the timestamp. */ |
| 2515 | const meta = rec.el.querySelector('.meta'); |
| 2516 | if (meta) { |
| 2517 | const total = rec.recipients.size; |
| 2518 | const acked = totals.acked || 0; |
| 2519 | const failed = (totals.failed || 0) + (totals.closed || 0); |
| 2520 | let summary = ' · ' + acked + '/' + total + ' delivered'; |
| 2521 | if (failed) summary += ', ' + failed + ' failed'; |
| 2522 | meta.textContent = new Date(rec.ts).toLocaleTimeString() + summary; |
| 2523 | } |
| 2524 | detail.innerHTML = rows.join(''); |
| 2525 | } |
| 2526 | /* Called from removePeer / cleanupForPeer to mark outstanding messages as |
| 2527 | closed for that recipient. */ |
| 2528 | function notePeerClosed(peer) { |
| 2529 | for (const [id, rec] of outMsgs) { |
| 2530 | const r = rec.recipients.get(peer.id); |
| 2531 | if (r === 'sent') { |
| 2532 | rec.recipients.set(peer.id, 'closed'); |
| 2533 | refreshMsgDetail(id); |
| 2534 | } |
| 2535 | } |
| 2536 | } |
| 2537 | function appendSystem(text) { |
| 2538 | const log = document.getElementById('chat-log'); |
| 2539 | if (!log) return; |
| 2540 | const el = document.createElement('div'); |
| 2541 | el.className = 'small'; |
| 2542 | el.style.textAlign = 'center'; |
| 2543 | el.style.color = 'var(--text-faint)'; |
| 2544 | el.textContent = '— ' + text + ' —'; |
| 2545 | log.appendChild(el); |
| 2546 | log.scrollTop = log.scrollHeight; |
| 2547 | } |
| 2548 | /* Wipe the chat log AND the delivery-tracking map. Each outMsg entry |
| 2549 | pins its `.chat-msg` DOM node, so clearing only the log would still |
| 2550 | leak the detached nodes through outMsgs. */ |
| 2551 | function clearAll() { |
| 2552 | outMsgs.clear(); |
| 2553 | document.getElementById('chat-log')?.replaceChildren(); |
| 2554 | } |
| 2555 | return { |
| 2556 | attach, send, sendByeTo, sendByeAll, broadcastUsername, sendUsernameTo, |
| 2557 | append, appendSystem, notePeerClosed, clearAll, MAX_TEXT, utf8Length, |
| 2558 | }; |
| 2559 | })(); |
| 2560 | |
| 2561 | /* Display name for a peer, with a short id suffix when colliding with |
| 2562 | ours or with another peer (e.g. multiple Anonymous users). */ |
| 2563 | function displayNameOf(peer) { |
| 2564 | const base = (peer.username || 'Anonymous').trim() || 'Anonymous'; |
| 2565 | /* Disambiguate when this name is shared with anyone else (other peers OR |
| 2566 | ourselves). Suffix is taken from the peer's id. */ |
| 2567 | const collides = (App.state.username || '').trim() === base |
| 2568 | || peerList().some(p => p !== peer && (p.username || '').trim() === base); |
| 2569 | return collides ? base + ' #' + peer.id.slice(0, 4) : base; |
| 2570 | } |
| 2571 | |
| 2572 | /* Push the local media-state to one peer's chat dc. */ |
| 2573 | function sendMediaStateTo(peer) { |
| 2574 | const dc = peer.dcChat; |
| 2575 | if (!dc || dc.readyState !== 'open') return; |
| 2576 | const state = { kind: 'media-state', ...localMediaState() }; |
| 2577 | try { dc.send(JSON.stringify(state)); } |
| 2578 | catch (e) { App.log.warn('media', peer.label, 'state send failed', e.message); } |
| 2579 | } |
| 2580 | |
| 2581 | /* ------------------------------------------------------------------------- |
| 2582 | Files: chunked transfer with backpressure |
| 2583 | ------------------------------------------------------------------------- */ |
| 2584 | App.files = (() => { |
| 2585 | const CHUNK = 16 * 1024; |
| 2586 | const HIGH_WATER = 1024 * 1024; /* 1 MB */ |
| 2587 | const LOW_WATER = 256 * 1024; |
| 2588 | /* Per-peer receive state. Key = peer.id + '/' + fileId so two peers can |
| 2589 | simultaneously send files with the same id without colliding. */ |
| 2590 | const incoming = new Map(); /* "<peerId>/<id>" -> { peer, id, name, size, mime, received, chunks } */ |
| 2591 | /* Per-peer send state. Each peer has its own queue, current send, abort |
| 2592 | set, since each peer's dcFiles has its own backpressure and lifecycle. */ |
| 2593 | /* peer -> { queue: [{ id, file }], busy: bool, currentId: string|null, |
| 2594 | aborted: Set<id>, pending: Map<id, resolveFn> } */ |
| 2595 | const sendState = new WeakMap(); |
| 2596 | |
| 2597 | function stateFor(peer) { |
| 2598 | let s = sendState.get(peer); |
| 2599 | if (!s) { |
| 2600 | s = { queue: [], busy: false, currentId: null, aborted: new Set(), pending: new Map() }; |
| 2601 | sendState.set(peer, s); |
| 2602 | } |
| 2603 | return s; |
| 2604 | } |
| 2605 | function incKey(peer, id) { return peer.id + '/' + id; } |
| 2606 | |
| 2607 | function attach(peer, dc) { |
| 2608 | dc.binaryType = 'arraybuffer'; |
| 2609 | dc.bufferedAmountLowThreshold = LOW_WATER; |
| 2610 | dc.onopen = () => { App.log.info('files', peer.label, 'data channel open'); setInCallControlsEnabled(); }; |
| 2611 | dc.onclose = () => { App.log.info('files', peer.label, 'data channel closed'); setInCallControlsEnabled(); }; |
| 2612 | dc.onerror = e => App.log.error('files', peer.label, 'error', e.error ? e.error.message : e); |
| 2613 | dc.onmessage = e => onMessage(peer, e.data); |
| 2614 | } |
| 2615 | |
| 2616 | const MAX_CTRL = 8 * 1024; |
| 2617 | const MAX_NAME = 1024; |
| 2618 | const MAX_MIME = 256; |
| 2619 | const MAX_FILE = 5 * 1024 * 1024 * 1024; /* 5 GB */ |
| 2620 | const ID_RE = /^[A-Za-z0-9_\-]{1,16}$/; |
| 2621 | function validId(id) { return typeof id === 'string' && ID_RE.test(id); } |
| 2622 | |
| 2623 | async function onMessage(peer, data) { |
| 2624 | if (typeof data === 'string') { |
| 2625 | if (data.length > MAX_CTRL) { App.log.warn('files', peer.label, 'ctrl too large'); return; } |
| 2626 | /* Tighten to byte-size so a non-ASCII file name can't bypass the cap. */ |
| 2627 | if (new TextEncoder().encode(data).length > MAX_CTRL) { App.log.warn('files', peer.label, 'ctrl too large (bytes)'); return; } |
| 2628 | let m; try { m = JSON.parse(data); } catch (e) { App.log.warn('files', peer.label, 'bad ctl', e.message); return; } |
| 2629 | if (!m || typeof m !== 'object' || typeof m.kind !== 'string' || !validId(m.id)) return; |
| 2630 | const key = incKey(peer, m.id); |
| 2631 | if (m.kind === 'file-start') { |
| 2632 | if (incoming.has(key)) { App.log.warn('files', peer.label, 'duplicate file-start ignored', m.id); return; } |
| 2633 | const size = Number(m.size); |
| 2634 | if (!Number.isFinite(size) || size < 0 || size > MAX_FILE) { App.log.warn('files', peer.label, 'invalid size', m.size); return; } |
| 2635 | const name = typeof m.name === 'string' ? m.name.slice(0, MAX_NAME) : 'file'; |
| 2636 | const mime = typeof m.mime === 'string' ? m.mime.slice(0, MAX_MIME) : ''; |
| 2637 | /* Park the transfer as a pending request — the sender holds its chunks |
| 2638 | until we reply file-accept/file-deny. mode/writer are filled in on |
| 2639 | accept; chunks is only used by the in-memory fallback. */ |
| 2640 | incoming.set(key, { peer, id: m.id, name, size, mime, received: 0, |
| 2641 | accepted: false, mode: null, writer: null, |
| 2642 | writeChain: null, writeFailed: false, chunks: null }); |
| 2643 | addIncomingRequestRow(key, name, size, peer); |
| 2644 | App.log.info('files', peer.label, 'incoming request', name, size); |
| 2645 | } else if (m.kind === 'file-accept' || m.kind === 'file-deny') { |
| 2646 | /* Sender side: the recipient answered our offer; release doSend's wait. */ |
| 2647 | const p = stateFor(peer).pending.get(m.id); |
| 2648 | if (p) p(m.kind === 'file-accept' ? 'accept' : 'deny'); |
| 2649 | } else if (m.kind === 'file-end') { |
| 2650 | const f = incoming.get(key); |
| 2651 | if (!f || !f.accepted) return; |
| 2652 | if (f.mode === 'disk') { |
| 2653 | try { await f.writeChain; await f.writer.close(); markIncomingSaved(key); } |
| 2654 | catch (e) { App.log.error('files', peer.label, 'finalizing failed', e.message); abortIncomingRow(key); } |
| 2655 | } else { |
| 2656 | finishIncoming(key, new Blob(f.chunks, { type: f.mime || 'application/octet-stream' }), f.name); |
| 2657 | } |
| 2658 | incoming.delete(key); |
| 2659 | App.log.info('files', peer.label, 'incoming done', f.name); |
| 2660 | /* Confirm receipt so the sender can mark this recipient delivered. */ |
| 2661 | try { peer.dcFiles.send(JSON.stringify({ kind: 'file-received', id: m.id })); } |
| 2662 | catch (_) {} |
| 2663 | } else if (m.kind === 'file-received') { |
| 2664 | markOutgoingPerRecipient(m.id, peer, 'delivered'); |
| 2665 | } else if (m.kind === 'file-abort') { |
| 2666 | const f = incoming.get(key); |
| 2667 | if (f) { |
| 2668 | App.log.warn('files', peer.label, 'incoming aborted', f.name); |
| 2669 | abortWriter(f); |
| 2670 | incoming.delete(key); |
| 2671 | abortIncomingRow(key); |
| 2672 | } |
| 2673 | } else if (m.kind === 'file-cancel') { |
| 2674 | /* Receiver-initiated cancel: stop sending if this id is queued, awaiting |
| 2675 | acceptance, or in-flight for THIS peer. Other peers' sends of the same |
| 2676 | id (a fan-out to multiple recipients) are unaffected. */ |
| 2677 | const s = stateFor(peer); |
| 2678 | const qi = s.queue.findIndex(q => q.id === m.id); |
| 2679 | if (qi >= 0) { |
| 2680 | s.queue.splice(qi, 1); |
| 2681 | markOutgoingPerRecipient(m.id, peer, 'cancelled by peer'); |
| 2682 | } else if (s.currentId === m.id) { |
| 2683 | s.aborted.add(m.id); |
| 2684 | const p = s.pending.get(m.id); |
| 2685 | if (p) p('cancelled'); |
| 2686 | App.log.info('files', peer.label, 'send cancelled by peer', m.id); |
| 2687 | } |
| 2688 | } |
| 2689 | /* unknown kinds: silently ignore */ |
| 2690 | } else { |
| 2691 | /* Binary: first 16 bytes ASCII id (right-padded), then payload. */ |
| 2692 | const view = new Uint8Array(data); |
| 2693 | if (view.byteLength <= 16) return; |
| 2694 | const idStr = new TextDecoder().decode(view.slice(0, 16)).replace(/\0+$/, '').trim(); |
| 2695 | if (!validId(idStr)) return; |
| 2696 | const payload = view.slice(16); |
| 2697 | const key = incKey(peer, idStr); |
| 2698 | const f = incoming.get(key); |
| 2699 | /* Drop chunks for unknown / not-yet-accepted transfers — a well-behaved |
| 2700 | sender never sends before file-accept. */ |
| 2701 | if (!f || !f.accepted) return; |
| 2702 | /* A peer claiming size N must not be able to push more than N bytes — |
| 2703 | otherwise it can OOM the tab (memory mode) or fill the disk. Tell the |
| 2704 | sender to stop and discard whatever we've written. */ |
| 2705 | if (f.received + payload.byteLength > f.size) { |
| 2706 | App.log.warn('files', peer.label, 'chunk overflows declared size, aborting', idStr); |
| 2707 | try { peer.dcFiles.send(JSON.stringify({ kind: 'file-cancel', id: f.id })); } catch (_) {} |
| 2708 | abortWriter(f); |
| 2709 | incoming.delete(key); |
| 2710 | abortIncomingRow(key); |
| 2711 | return; |
| 2712 | } |
| 2713 | f.received += payload.byteLength; |
| 2714 | if (f.mode === 'disk') { |
| 2715 | /* Stream straight to disk. Serialize writes through a promise chain so |
| 2716 | they land in order (the channel delivers in order); a single write |
| 2717 | failure cancels the whole transfer. */ |
| 2718 | const writer = f.writer; |
| 2719 | f.writeChain = f.writeChain.then(() => f.writeFailed ? null : writer.write(payload)).catch(err => { |
| 2720 | if (f.writeFailed) return; |
| 2721 | f.writeFailed = true; |
| 2722 | App.log.error('files', peer.label, 'disk write failed', err.message); |
| 2723 | try { peer.dcFiles.send(JSON.stringify({ kind: 'file-cancel', id: f.id })); } catch (_) {} |
| 2724 | abortWriter(f); |
| 2725 | incoming.delete(key); |
| 2726 | abortIncomingRow(key); |
| 2727 | }); |
| 2728 | } else { |
| 2729 | f.chunks.push(payload); |
| 2730 | } |
| 2731 | updateIncomingRow(key, f.received, f.size); |
| 2732 | } |
| 2733 | } |
| 2734 | |
| 2735 | /* Receiver accepts an offered file: pick a destination and stream to it. |
| 2736 | Falls back to in-memory buffering + a download link where the File System |
| 2737 | Access API is unavailable (e.g. Firefox). */ |
| 2738 | async function acceptIncoming(key) { |
| 2739 | const f = incoming.get(key); |
| 2740 | if (!f || f.accepted) return; |
| 2741 | if (window.showSaveFilePicker) { |
| 2742 | let handle; |
| 2743 | try { |
| 2744 | handle = await window.showSaveFilePicker({ suggestedName: f.name }); |
| 2745 | } catch (e) { |
| 2746 | /* AbortError = user dismissed the picker; treat as a deny. */ |
| 2747 | if (e && e.name !== 'AbortError') App.log.warn('files', f.peer.label, 'save picker failed', e.message); |
| 2748 | denyIncoming(key); |
| 2749 | return; |
| 2750 | } |
| 2751 | try { |
| 2752 | f.writer = await handle.createWritable(); |
| 2753 | } catch (e) { |
| 2754 | App.log.error('files', f.peer.label, 'could not open file for writing', e.message); |
| 2755 | denyIncoming(key); |
| 2756 | return; |
| 2757 | } |
| 2758 | f.mode = 'disk'; |
| 2759 | f.writeChain = Promise.resolve(); |
| 2760 | } else { |
| 2761 | f.mode = 'memory'; |
| 2762 | f.chunks = []; |
| 2763 | } |
| 2764 | f.accepted = true; |
| 2765 | /* Swap the request row for the normal progress row, then tell the sender. */ |
| 2766 | removeIncomingRowEl(key); |
| 2767 | addIncomingRow(key, f.name, f.size, f.peer); |
| 2768 | try { f.peer.dcFiles.send(JSON.stringify({ kind: 'file-accept', id: f.id })); } |
| 2769 | catch (e) { App.log.warn('files', f.peer.label, 'file-accept send failed', e.message); } |
| 2770 | App.log.info('files', f.peer.label, 'accepted', f.name, '(' + f.mode + ')'); |
| 2771 | } |
| 2772 | |
| 2773 | function denyIncoming(key) { |
| 2774 | const f = incoming.get(key); |
| 2775 | if (!f) return; |
| 2776 | try { f.peer.dcFiles.send(JSON.stringify({ kind: 'file-deny', id: f.id })); } |
| 2777 | catch (_) {} |
| 2778 | abortWriter(f); |
| 2779 | incoming.delete(key); |
| 2780 | removeIncomingRowEl(key); |
| 2781 | App.log.info('files', f.peer.label, 'declined', f.name); |
| 2782 | } |
| 2783 | |
| 2784 | /* Abort and discard a half-written destination file. Idempotent. */ |
| 2785 | function abortWriter(rec) { |
| 2786 | if (!rec || !rec.writer || rec.aborting) return; |
| 2787 | rec.aborting = true; |
| 2788 | const w = rec.writer; |
| 2789 | Promise.resolve(rec.writeChain).catch(() => {}).then(() => w.abort().catch(() => {})); |
| 2790 | } |
| 2791 | |
| 2792 | /* Fan a file out to every selected peer (or to `opts.peers` if given). |
| 2793 | One Blob is shared across the per-peer queues. */ |
| 2794 | function sendFile(file, opts) { |
| 2795 | const recipients = (opts && opts.peers) |
| 2796 | || (App.ui.selectedFilesPeers ? App.ui.selectedFilesPeers() : peersWithOpenFiles()); |
| 2797 | if (!recipients.length) { App.log.warn('files', 'no recipients selected'); return; } |
| 2798 | if (file.size > MAX_FILE) { |
| 2799 | App.log.warn('files', 'file too large', file.size); |
| 2800 | App.chat.appendSystem?.(`File "${file.name}" exceeds the 5 GB limit.`); |
| 2801 | return; |
| 2802 | } |
| 2803 | const id = (Date.now().toString(36) + Math.random().toString(36).slice(2, 8)).padEnd(16, '_').slice(0, 16); |
| 2804 | addOutgoingRow(id, file.name, file.size, recipients); |
| 2805 | for (const peer of recipients) { |
| 2806 | const s = stateFor(peer); |
| 2807 | s.queue.push({ id, file }); |
| 2808 | if (s.queue.length > 1 || s.busy) markRecipientQueued(id, peer); |
| 2809 | pumpQueue(peer); |
| 2810 | } |
| 2811 | } |
| 2812 | |
| 2813 | async function pumpQueue(peer) { |
| 2814 | const s = stateFor(peer); |
| 2815 | if (s.busy) return; |
| 2816 | const next = s.queue.shift(); |
| 2817 | if (!next) return; |
| 2818 | s.busy = true; |
| 2819 | try { |
| 2820 | await doSend(peer, next.id, next.file); |
| 2821 | } finally { |
| 2822 | s.busy = false; |
| 2823 | pumpQueue(peer); |
| 2824 | } |
| 2825 | } |
| 2826 | |
| 2827 | /* Wait for the recipient's file-accept/file-deny. Resolves 'accept', 'deny', |
| 2828 | 'cancelled' (we aborted / peer cancelled), or 'closed' (channel went away), |
| 2829 | so the send loop never hangs waiting on a peer who never answers. */ |
| 2830 | function waitForDecision(s, dc, id) { |
| 2831 | return new Promise(resolve => { |
| 2832 | let settled = false; |
| 2833 | const finish = v => { |
| 2834 | if (settled) return; |
| 2835 | settled = true; |
| 2836 | s.pending.delete(id); |
| 2837 | dc.removeEventListener('close', onGone); |
| 2838 | dc.removeEventListener('error', onGone); |
| 2839 | resolve(v); |
| 2840 | }; |
| 2841 | const onGone = () => finish('closed'); |
| 2842 | if (s.aborted.has(id)) return finish('cancelled'); |
| 2843 | if (dc.readyState !== 'open') return finish('closed'); |
| 2844 | s.pending.set(id, finish); |
| 2845 | dc.addEventListener('close', onGone); |
| 2846 | dc.addEventListener('error', onGone); |
| 2847 | }); |
| 2848 | } |
| 2849 | |
| 2850 | async function doSend(peer, id, file) { |
| 2851 | const s = stateFor(peer); |
| 2852 | const dc = peer.dcFiles; |
| 2853 | if (!dc || dc.readyState !== 'open') { |
| 2854 | App.log.warn('files', peer.label, 'channel closed before send', file.name); |
| 2855 | markOutgoingPerRecipient(id, peer, 'channel closed'); |
| 2856 | s.aborted.delete(id); |
| 2857 | return; |
| 2858 | } |
| 2859 | if (s.aborted.has(id)) { |
| 2860 | markOutgoingPerRecipient(id, peer, 'cancelled'); |
| 2861 | s.aborted.delete(id); |
| 2862 | return; |
| 2863 | } |
| 2864 | s.currentId = id; |
| 2865 | const start = { kind: 'file-start', id, name: file.name, size: file.size, mime: file.type }; |
| 2866 | dc.send(JSON.stringify(start)); |
| 2867 | markOutgoingPerRecipient(id, peer, 'awaiting acceptance'); |
| 2868 | App.log.info('files', peer.label, 'offered', file.name, file.size); |
| 2869 | |
| 2870 | /* Hold the chunks until the recipient accepts (or declines / disconnects / |
| 2871 | we abort). The receiver opens its save target before answering. */ |
| 2872 | const decision = await waitForDecision(s, dc, id); |
| 2873 | if (decision !== 'accept') { |
| 2874 | const label = decision === 'deny' ? 'declined' |
| 2875 | : decision === 'closed' ? 'channel closed' : 'cancelled'; |
| 2876 | markOutgoingPerRecipient(id, peer, label); |
| 2877 | App.log.info('files', peer.label, decision === 'deny' ? 'recipient declined' : 'send ended before accept', file.name); |
| 2878 | s.aborted.delete(id); |
| 2879 | s.currentId = null; |
| 2880 | return; |
| 2881 | } |
| 2882 | markOutgoingPerRecipient(id, peer, 'sending'); |
| 2883 | App.log.info('files', peer.label, 'sending', file.name, file.size); |
| 2884 | |
| 2885 | const idBytes = new TextEncoder().encode(id); |
| 2886 | let offset = 0; |
| 2887 | let cancelled = false; |
| 2888 | try { |
| 2889 | while (offset < file.size) { |
| 2890 | if (s.aborted.has(id)) { cancelled = true; break; } |
| 2891 | if (dc.bufferedAmount > HIGH_WATER) { |
| 2892 | /* Wait for backpressure to clear — but also wake up if the channel |
| 2893 | closes (peer disconnected, removePeer closed the dc, browser |
| 2894 | tore it down). A closed RTCDataChannel never fires |
| 2895 | bufferedamountlow, so without the close/error listeners this |
| 2896 | promise could hang forever and freeze the per-peer queue. */ |
| 2897 | await new Promise(res => { |
| 2898 | const done = () => { |
| 2899 | dc.removeEventListener('bufferedamountlow', done); |
| 2900 | dc.removeEventListener('close', done); |
| 2901 | dc.removeEventListener('error', done); |
| 2902 | res(); |
| 2903 | }; |
| 2904 | dc.addEventListener('bufferedamountlow', done); |
| 2905 | dc.addEventListener('close', done); |
| 2906 | dc.addEventListener('error', done); |
| 2907 | }); |
| 2908 | if (dc.readyState !== 'open') { |
| 2909 | App.log.warn('files', peer.label, 'channel closed during backpressure wait'); |
| 2910 | cancelled = true; break; |
| 2911 | } |
| 2912 | if (s.aborted.has(id)) { cancelled = true; break; } |
| 2913 | } |
| 2914 | const slice = await file.slice(offset, offset + CHUNK).arrayBuffer(); |
| 2915 | if (s.aborted.has(id)) { cancelled = true; break; } |
| 2916 | const buf = new Uint8Array(16 + slice.byteLength); |
| 2917 | buf.set(idBytes, 0); |
| 2918 | buf.set(new Uint8Array(slice), 16); |
| 2919 | dc.send(buf.buffer); |
| 2920 | offset += slice.byteLength; |
| 2921 | updateOutgoingProgress(id, peer, offset, file.size); |
| 2922 | } |
| 2923 | if (cancelled) { |
| 2924 | try { dc.send(JSON.stringify({ kind: 'file-abort', id })); } catch (_) {} |
| 2925 | markOutgoingPerRecipient(id, peer, 'cancelled'); |
| 2926 | App.log.info('files', peer.label, 'send cancelled', file.name); |
| 2927 | } else { |
| 2928 | dc.send(JSON.stringify({ kind: 'file-end', id })); |
| 2929 | markOutgoingPerRecipient(id, peer, 'sent'); |
| 2930 | App.log.info('files', peer.label, 'sent', file.name); |
| 2931 | } |
| 2932 | } catch (e) { |
| 2933 | App.log.error('files', peer.label, 'send failed', e.message); |
| 2934 | try { dc.send(JSON.stringify({ kind: 'file-abort', id })); } catch (_) {} |
| 2935 | markOutgoingPerRecipient(id, peer, 'send failed'); |
| 2936 | } finally { |
| 2937 | s.currentId = null; |
| 2938 | s.aborted.delete(id); |
| 2939 | } |
| 2940 | } |
| 2941 | |
| 2942 | /* UI row helpers */ |
| 2943 | /* Track blob URLs for incoming finished downloads so Clear can revoke them. */ |
| 2944 | const incomingUrls = new Map(); /* key (peerId/id) -> objectURL string */ |
| 2945 | |
| 2946 | /* Outgoing row tracks per-recipient state in dataset JSON. The summary |
| 2947 | line shows aggregated progress (min %) + a count of {recipients done}. */ |
| 2948 | /* perRecipient[peerId] = { state: 'queued'|'sending'|'sent'|'cancelled'|'channel closed'|'send failed', sent: number } */ |
| 2949 | const outgoingMeta = new Map(); /* outId -> { name, size, perRecipient: Map<peerId, ...> } */ |
| 2950 | |
| 2951 | function rowEl(side, key, name, size) { |
| 2952 | const el = document.createElement('div'); |
| 2953 | el.className = 'file-item' + (side === 'out' ? ' has-detail' : ''); |
| 2954 | el.dataset.id = key; |
| 2955 | el.innerHTML = `<button class="row-close" type="button" title="Cancel / remove" aria-label="Cancel or remove">×</button> |
| 2956 | <div class="name"></div> |
| 2957 | <div class="meta"><span class="bytes">0</span> / <span class="total"></span> B (<span class="pct">0</span>%) <span class="recip"></span></div> |
| 2958 | <div class="progress"><div></div></div> |
| 2959 | <div class="dl"></div> |
| 2960 | <div class="detail"></div>`; |
| 2961 | el.querySelector('.name').textContent = name; |
| 2962 | el.querySelector('.total').textContent = size.toLocaleString(); |
| 2963 | el.querySelector('.row-close').addEventListener('click', e => { |
| 2964 | e.stopPropagation(); |
| 2965 | removeRow(side, key); |
| 2966 | }); |
| 2967 | if (side === 'out') { |
| 2968 | el.addEventListener('click', e => { |
| 2969 | if (e.target.closest('.row-close')) return; |
| 2970 | el.classList.toggle('open'); |
| 2971 | }); |
| 2972 | } |
| 2973 | return el; |
| 2974 | } |
| 2975 | function removeRow(side, key) { |
| 2976 | const sel = side === 'in' ? '#files-in' : '#files-out'; |
| 2977 | const row = document.querySelector(sel + ' [data-id="' + CSS.escape(key) + '"]'); |
| 2978 | if (row) row.remove(); |
| 2979 | if (side === 'in') { |
| 2980 | const rec = incoming.get(key); |
| 2981 | if (rec) { |
| 2982 | /* Tell the sender to stop: file-deny while still a pending request, |
| 2983 | file-cancel once we've accepted and chunks may be arriving. */ |
| 2984 | const dc = rec.peer.dcFiles; |
| 2985 | if (dc && dc.readyState === 'open') { |
| 2986 | const kind = rec.accepted ? 'file-cancel' : 'file-deny'; |
| 2987 | try { dc.send(JSON.stringify({ kind, id: rec.id })); } catch (_) {} |
| 2988 | } |
| 2989 | abortWriter(rec); |
| 2990 | } |
| 2991 | const url = incomingUrls.get(key); |
| 2992 | if (url) { URL.revokeObjectURL(url); incomingUrls.delete(key); } |
| 2993 | incoming.delete(key); |
| 2994 | } else { |
| 2995 | /* outgoing: cancel across every recipient that still has this id. */ |
| 2996 | outgoingMeta.delete(key); |
| 2997 | for (const peer of App.state.peers.values()) { |
| 2998 | const s = stateFor(peer); |
| 2999 | const i = s.queue.findIndex(q => q.id === key); |
| 3000 | if (i >= 0) s.queue.splice(i, 1); |
| 3001 | if (s.currentId === key) { |
| 3002 | s.aborted.add(key); |
| 3003 | /* If we're parked awaiting acceptance, release that wait too. */ |
| 3004 | const p = s.pending.get(key); |
| 3005 | if (p) p('cancelled'); |
| 3006 | } |
| 3007 | } |
| 3008 | } |
| 3009 | } |
| 3010 | function clearAll(side) { |
| 3011 | const sel = side === 'in' ? '#files-in' : '#files-out'; |
| 3012 | document.querySelectorAll(sel + ' .file-item').forEach(el => el.remove()); |
| 3013 | if (side === 'in') { |
| 3014 | /* Tell each peer to stop for any pending requests / in-progress receives. */ |
| 3015 | incoming.forEach((rec, _key) => { |
| 3016 | const dc = rec.peer.dcFiles; |
| 3017 | if (dc && dc.readyState === 'open') { |
| 3018 | const kind = rec.accepted ? 'file-cancel' : 'file-deny'; |
| 3019 | try { dc.send(JSON.stringify({ kind, id: rec.id })); } catch (_) {} |
| 3020 | } |
| 3021 | abortWriter(rec); |
| 3022 | }); |
| 3023 | incomingUrls.forEach(url => URL.revokeObjectURL(url)); |
| 3024 | incomingUrls.clear(); |
| 3025 | incoming.clear(); |
| 3026 | } else { |
| 3027 | outgoingMeta.clear(); |
| 3028 | for (const peer of App.state.peers.values()) { |
| 3029 | const s = stateFor(peer); |
| 3030 | s.queue.length = 0; |
| 3031 | if (s.currentId) s.aborted.add(s.currentId); |
| 3032 | } |
| 3033 | } |
| 3034 | } |
| 3035 | function addOutgoingRow(id, name, size, recipients) { |
| 3036 | const row = rowEl('out', id, name, size); |
| 3037 | document.getElementById('files-out').appendChild(row); |
| 3038 | const perRecipient = new Map(); |
| 3039 | for (const peer of recipients) perRecipient.set(peer.id, { state: 'queued', sent: 0 }); |
| 3040 | outgoingMeta.set(id, { name, size, perRecipient }); |
| 3041 | refreshOutgoingRow(id); |
| 3042 | } |
| 3043 | function refreshOutgoingRow(id) { |
| 3044 | const meta = outgoingMeta.get(id); |
| 3045 | if (!meta) return; |
| 3046 | const row = document.querySelector('#files-out [data-id="' + CSS.escape(id) + '"]'); |
| 3047 | if (!row) return; |
| 3048 | const recips = Array.from(meta.perRecipient.entries()); |
| 3049 | const minSent = recips.reduce((m, [, r]) => Math.min(m, r.sent), Infinity); |
| 3050 | const pct = meta.size ? Math.floor((minSent / meta.size) * 100) : 0; |
| 3051 | row.querySelector('.bytes').textContent = (Number.isFinite(minSent) ? minSent : 0).toLocaleString(); |
| 3052 | row.querySelector('.pct').textContent = pct; |
| 3053 | row.querySelector('.progress > div').style.width = pct + '%'; |
| 3054 | const doneStates = new Set(['sent', 'delivered']); |
| 3055 | const failStates = new Set(['channel closed', 'send failed', 'cancelled', 'cancelled by peer', 'declined']); |
| 3056 | const delivered = recips.filter(([, r]) => r.state === 'delivered').length; |
| 3057 | const total = recips.length; |
| 3058 | const failed = recips.filter(([, r]) => failStates.has(r.state)).length; |
| 3059 | let recipText = ' · ' + delivered + '/' + total + ' delivered'; |
| 3060 | if (failed) recipText += ', ' + failed + ' failed'; |
| 3061 | row.querySelector('.recip').textContent = recipText; |
| 3062 | const allDone = recips.every(([, r]) => doneStates.has(r.state) || failStates.has(r.state)); |
| 3063 | if (allDone && failed === 0) row.querySelector('.progress > div').style.background = 'var(--ok)'; |
| 3064 | /* Per-recipient detail block — only visible when the user clicks the row. */ |
| 3065 | const detail = row.querySelector('.detail'); |
| 3066 | if (detail) { |
| 3067 | const STATE_CLASS = { |
| 3068 | 'queued': 'queued', 'awaiting acceptance': 'queued', 'sending': 'sending', |
| 3069 | 'sent': 'sent', 'delivered': 'delivered', |
| 3070 | 'channel closed': 'closed', 'send failed': 'failed', |
| 3071 | 'cancelled': 'cancelled', 'cancelled by peer': 'cancelled', 'declined': 'cancelled', |
| 3072 | }; |
| 3073 | detail.innerHTML = recips.map(([peerId, r]) => { |
| 3074 | const peer = App.state.peers.get(peerId); |
| 3075 | const name = peer ? displayNameOf(peer) : ('peer ' + peerId.slice(0, 4)); |
| 3076 | const sizePct = meta.size ? Math.floor((r.sent / meta.size) * 100) : 0; |
| 3077 | const stateClass = STATE_CLASS[r.state] || ''; |
| 3078 | const stateText = r.state === 'sending' ? r.state + ' ' + sizePct + '%' : r.state; |
| 3079 | return `<div class="row"><span>${escapeHtml(name)}</span><span class="state ${stateClass}">${stateText}</span></div>`; |
| 3080 | }).join(''); |
| 3081 | } |
| 3082 | } |
| 3083 | function updateOutgoingProgress(id, peer, sent, _size) { |
| 3084 | const meta = outgoingMeta.get(id); |
| 3085 | if (!meta) return; |
| 3086 | const r = meta.perRecipient.get(peer.id); |
| 3087 | if (!r) return; |
| 3088 | r.state = 'sending'; |
| 3089 | r.sent = sent; |
| 3090 | refreshOutgoingRow(id); |
| 3091 | } |
| 3092 | function markOutgoingPerRecipient(id, peer, state) { |
| 3093 | const meta = outgoingMeta.get(id); |
| 3094 | if (!meta) return; |
| 3095 | const r = meta.perRecipient.get(peer.id); |
| 3096 | if (!r) return; |
| 3097 | r.state = state; |
| 3098 | refreshOutgoingRow(id); |
| 3099 | } |
| 3100 | function markRecipientQueued(id, peer) { |
| 3101 | const meta = outgoingMeta.get(id); |
| 3102 | if (!meta) return; |
| 3103 | const r = meta.perRecipient.get(peer.id); |
| 3104 | if (r) { r.state = 'queued'; refreshOutgoingRow(id); } |
| 3105 | } |
| 3106 | function addIncomingRow(key, name, size, peer) { |
| 3107 | const row = rowEl('in', key, name, size); |
| 3108 | row.querySelector('.recip').textContent = ' · from ' + displayNameOf(peer); |
| 3109 | document.getElementById('files-in').appendChild(row); |
| 3110 | } |
| 3111 | /* The pending-request row: name + size + Accept/Deny, shown until the user |
| 3112 | decides. Accept opens a save target and streams to it; Deny tells the |
| 3113 | sender to drop the transfer. */ |
| 3114 | function addIncomingRequestRow(key, name, size, peer) { |
| 3115 | const el = document.createElement('div'); |
| 3116 | el.className = 'file-item file-request'; |
| 3117 | el.dataset.id = key; |
| 3118 | el.innerHTML = `<button class="row-close" type="button" title="Decline" aria-label="Decline">×</button> |
| 3119 | <div class="name"></div> |
| 3120 | <div class="meta"><span class="total"></span> B · from <span class="from"></span></div> |
| 3121 | <div class="req-actions"> |
| 3122 | <button class="btn-accept" type="button">Accept</button> |
| 3123 | <button class="btn-deny" type="button">Deny</button> |
| 3124 | </div>`; |
| 3125 | el.querySelector('.name').textContent = name; |
| 3126 | el.querySelector('.total').textContent = size.toLocaleString(); |
| 3127 | el.querySelector('.from').textContent = displayNameOf(peer); |
| 3128 | el.querySelector('.row-close').addEventListener('click', e => { e.stopPropagation(); denyIncoming(key); }); |
| 3129 | el.querySelector('.btn-deny').addEventListener('click', () => denyIncoming(key)); |
| 3130 | el.querySelector('.btn-accept').addEventListener('click', () => acceptIncoming(key)); |
| 3131 | document.getElementById('files-in').appendChild(el); |
| 3132 | } |
| 3133 | function removeIncomingRowEl(key) { |
| 3134 | const row = document.querySelector('#files-in [data-id="' + CSS.escape(key) + '"]'); |
| 3135 | if (row) row.remove(); |
| 3136 | } |
| 3137 | function markIncomingSaved(key) { |
| 3138 | const row = document.querySelector('#files-in [data-id="' + CSS.escape(key) + '"]'); |
| 3139 | if (!row) return; |
| 3140 | const dl = row.querySelector('.dl'); |
| 3141 | if (dl) { dl.textContent = 'Saved to disk'; dl.style.color = 'var(--ok)'; } |
| 3142 | markDone('#files-in', key); |
| 3143 | } |
| 3144 | function updateIncomingRow(key, recv, size) { updateRow('#files-in', key, recv, size); } |
| 3145 | function abortIncomingRow(key) { |
| 3146 | const row = document.querySelector('#files-in [data-id="' + CSS.escape(key) + '"]'); |
| 3147 | if (row) row.querySelector('.dl').textContent = '(aborted)'; |
| 3148 | } |
| 3149 | function finishIncoming(key, blob, name) { |
| 3150 | const row = document.querySelector('#files-in [data-id="' + CSS.escape(key) + '"]'); |
| 3151 | if (!row) return; |
| 3152 | const url = URL.createObjectURL(blob); |
| 3153 | incomingUrls.set(key, url); |
| 3154 | const a = document.createElement('a'); |
| 3155 | a.href = url; a.download = name; a.textContent = 'Download'; |
| 3156 | a.style.color = 'var(--accent)'; |
| 3157 | row.querySelector('.dl').innerHTML = ''; |
| 3158 | row.querySelector('.dl').appendChild(a); |
| 3159 | markDone('#files-in', key); |
| 3160 | } |
| 3161 | function updateRow(sel, key, cur, size) { |
| 3162 | const row = document.querySelector(sel + ' [data-id="' + CSS.escape(key) + '"]'); |
| 3163 | if (!row) return; |
| 3164 | const pct = size ? Math.floor((cur / size) * 100) : 0; |
| 3165 | row.querySelector('.bytes').textContent = cur.toLocaleString(); |
| 3166 | row.querySelector('.pct').textContent = pct; |
| 3167 | row.querySelector('.progress > div').style.width = pct + '%'; |
| 3168 | } |
| 3169 | function markDone(sel, key) { |
| 3170 | const row = document.querySelector(sel + ' [data-id="' + CSS.escape(key) + '"]'); |
| 3171 | if (!row) return; |
| 3172 | row.querySelector('.progress > div').style.background = 'var(--ok)'; |
| 3173 | } |
| 3174 | |
| 3175 | /* Called when a peer disconnects — mark any in-flight incoming receives |
| 3176 | from that peer as aborted, and any outgoing sends to that peer as |
| 3177 | channel-closed. The per-peer queues are abandoned along with the peer. */ |
| 3178 | function cleanupForPeer(peer) { |
| 3179 | for (const [key, rec] of incoming) { |
| 3180 | if (rec.peer === peer) { |
| 3181 | abortWriter(rec); |
| 3182 | abortIncomingRow(key); |
| 3183 | incoming.delete(key); |
| 3184 | } |
| 3185 | } |
| 3186 | for (const meta of outgoingMeta.values()) { |
| 3187 | const r = meta.perRecipient.get(peer.id); |
| 3188 | if (r && r.state !== 'sent') { |
| 3189 | r.state = 'channel closed'; |
| 3190 | } |
| 3191 | } |
| 3192 | /* Refresh every outgoing row's recipient summary. */ |
| 3193 | for (const id of outgoingMeta.keys()) refreshOutgoingRow(id); |
| 3194 | sendState.delete(peer); |
| 3195 | } |
| 3196 | |
| 3197 | return { attach, sendFile, clearAll, cleanupForPeer, MAX_FILE }; |
| 3198 | })(); |
| 3199 | |
| 3200 | /* ------------------------------------------------------------------------- |
| 3201 | Stats |
| 3202 | ------------------------------------------------------------------------- */ |
| 3203 | App.stats = (() => { |
| 3204 | let timer = null; |
| 3205 | let consoleTimer = null; |
| 3206 | /* id -> { bytes, ts } from the previous tick. Used to compute live bitrate |
| 3207 | as a delta — the WebRTC stats objects don't expose a current bitrate for |
| 3208 | inbound, only cumulative bytes. */ |
| 3209 | const prev = new Map(); |
| 3210 | |
| 3211 | function fmtBytes(n) { |
| 3212 | if (n == null || isNaN(n)) return '—'; |
| 3213 | if (n < 1024) return n + ' B'; |
| 3214 | if (n < 1024 * 1024) return (n / 1024).toFixed(1) + ' KB'; |
| 3215 | if (n < 1024 * 1024 * 1024) return (n / (1024 * 1024)).toFixed(2) + ' MB'; |
| 3216 | return (n / (1024 * 1024 * 1024)).toFixed(2) + ' GB'; |
| 3217 | } |
| 3218 | function fmtBps(bps) { |
| 3219 | if (bps == null || isNaN(bps)) return '—'; |
| 3220 | if (bps < 1000) return Math.round(bps) + ' bps'; |
| 3221 | if (bps < 1_000_000) return (bps / 1000).toFixed(1) + ' kbps'; |
| 3222 | return (bps / 1_000_000).toFixed(2) + ' Mbps'; |
| 3223 | } |
| 3224 | function bitrateFor(id, bytes, ts) { |
| 3225 | const p = prev.get(id); |
| 3226 | prev.set(id, { bytes, ts }); |
| 3227 | if (!p || ts <= p.ts) return null; |
| 3228 | return ((bytes - p.bytes) * 8 * 1000) / (ts - p.ts); |
| 3229 | } |
| 3230 | |
| 3231 | /* Peer dropdown drives which connection we poll. Falls back to the first |
| 3232 | live peer if the dropdown is empty / out of sync. */ |
| 3233 | function selectedPeer() { |
| 3234 | const sel = document.getElementById('stats-peer'); |
| 3235 | const id = sel && sel.value; |
| 3236 | if (id) { |
| 3237 | const peer = App.state.peers.get(id); |
| 3238 | if (peer) return peer; |
| 3239 | } |
| 3240 | return App.state.peers.values().next().value || null; |
| 3241 | } |
| 3242 | async function tick() { |
| 3243 | const peer = selectedPeer(); |
| 3244 | const tbody = document.querySelector('#stats-table tbody'); |
| 3245 | if (!peer || !peer.pc) { |
| 3246 | /* No peer selected: empty the table so stale values from a peer we |
| 3247 | just disconnected from don't linger. */ |
| 3248 | if (tbody) tbody.innerHTML = ''; |
| 3249 | prev.clear(); |
| 3250 | return; |
| 3251 | } |
| 3252 | const stats = await peer.pc.getStats(); |
| 3253 | if (!tbody) return; |
| 3254 | const rows = collect(peer, stats); |
| 3255 | /* Drop prev entries for stat ids that no longer appear in this report, |
| 3256 | so the cache doesn't grow unboundedly across long calls where the |
| 3257 | browser internally rotates RTP stream ids. */ |
| 3258 | const liveIds = new Set(); |
| 3259 | stats.forEach(r => { if (r.type === 'outbound-rtp' || r.type === 'inbound-rtp') liveIds.add(r.id); }); |
| 3260 | for (const k of prev.keys()) if (!liveIds.has(k)) prev.delete(k); |
| 3261 | tbody.innerHTML = rows.map(r => |
| 3262 | `<tr><td>${escapeHtml(r.k)}</td><td>${escapeHtml(String(r.v))}</td></tr>`).join(''); |
| 3263 | } |
| 3264 | |
| 3265 | function collect(peer, stats) { |
| 3266 | const out = []; |
| 3267 | /* Single pass over the report: index every record by id (for candidate / |
| 3268 | codec lookups), capture the transport's selected pair id, and collect the |
| 3269 | candidate-pair and RTP records we'll emit. Avoids re-scanning the report |
| 3270 | several times per tick. */ |
| 3271 | const byId = new Map(); |
| 3272 | const candidatePairs = []; |
| 3273 | const rtpRecords = []; |
| 3274 | let selected = null; |
| 3275 | stats.forEach(r => { |
| 3276 | byId.set(r.id, r); |
| 3277 | if (r.type === 'transport' && r.selectedCandidatePairId) selected = r.selectedCandidatePairId; |
| 3278 | else if (r.type === 'candidate-pair') candidatePairs.push(r); |
| 3279 | else if ((r.type === 'outbound-rtp' || r.type === 'inbound-rtp') && !r.isRemote) rtpRecords.push(r); |
| 3280 | }); |
| 3281 | let localCand = null, remoteCand = null; |
| 3282 | const pair = candidatePairs.find(r => |
| 3283 | (r.nominated || r.selected || r.id === selected) && r.state === 'succeeded') || null; |
| 3284 | if (pair) { |
| 3285 | localCand = byId.get(pair.localCandidateId) || null; |
| 3286 | remoteCand = byId.get(pair.remoteCandidateId) || null; |
| 3287 | out.push({ k: 'rtt (ms)', v: pair.currentRoundTripTime ? Math.round(pair.currentRoundTripTime * 1000) : '—' }); |
| 3288 | out.push({ k: 'bytes sent', v: fmtBytes(pair.bytesSent) }); |
| 3289 | out.push({ k: 'bytes received', v: fmtBytes(pair.bytesReceived) }); |
| 3290 | out.push({ k: 'available outgoing bw', v: pair.availableOutgoingBitrate ? fmtBps(pair.availableOutgoingBitrate) : '—' }); |
| 3291 | if (localCand) out.push({ k: 'local candidate', v: `${localCand.candidateType} ${localCand.address || localCand.ip || ''}:${localCand.port || ''} ${localCand.protocol || ''}` }); |
| 3292 | if (remoteCand) out.push({ k: 'remote candidate', v: `${remoteCand.candidateType} ${remoteCand.address || remoteCand.ip || ''}:${remoteCand.port || ''} ${remoteCand.protocol || ''}` }); |
| 3293 | } |
| 3294 | /* outbound-rtp / inbound-rtp report kind='video' for both the cam and the |
| 3295 | screen-share transceivers, so we need to disambiguate by mid. */ |
| 3296 | const midRole = new Map(); |
| 3297 | if (peer.micTransceiver && peer.micTransceiver.mid != null) midRole.set(String(peer.micTransceiver.mid), 'audio'); |
| 3298 | if (peer.camTransceiver && peer.camTransceiver.mid != null) midRole.set(String(peer.camTransceiver.mid), 'cam'); |
| 3299 | if (peer.screenTransceiver && peer.screenTransceiver.mid != null) midRole.set(String(peer.screenTransceiver.mid), 'screen'); |
| 3300 | const roleOf = r => midRole.get(String(r.mid)) || r.kind; |
| 3301 | /* codecId → short codec label, resolved from the byId index built above |
| 3302 | (the 'codec' records appear in arbitrary order relative to rtp records). */ |
| 3303 | const codecLabel = id => { |
| 3304 | const c = byId.get(id); |
| 3305 | if (!c || !c.mimeType) return ''; |
| 3306 | return ' [' + c.mimeType.split('/')[1] + ']'; |
| 3307 | }; |
| 3308 | rtpRecords.forEach(r => { |
| 3309 | if (r.type === 'outbound-rtp') { |
| 3310 | const role = roleOf(r); |
| 3311 | const br = bitrateFor(r.id, r.bytesSent || 0, r.timestamp); |
| 3312 | const fps = r.framesPerSecond ? `, ${r.framesPerSecond} fps` : ''; |
| 3313 | out.push({ k: `↑ ${role} sent${codecLabel(r.codecId)}`, v: `${fmtBytes(r.bytesSent)} / ${r.packetsSent} pkts @ ${fmtBps(br)}${fps}` }); |
| 3314 | if (r.targetBitrate) out.push({ k: `↑ ${role} target br`, v: fmtBps(r.targetBitrate) }); |
| 3315 | } else { |
| 3316 | const role = roleOf(r); |
| 3317 | const br = bitrateFor(r.id, r.bytesReceived || 0, r.timestamp); |
| 3318 | const fps = r.framesPerSecond ? `, ${r.framesPerSecond} fps` : ''; |
| 3319 | const lost = r.packetsLost ?? 0; |
| 3320 | const jit = r.jitter ? r.jitter.toFixed(3) : 0; |
| 3321 | out.push({ k: `↓ ${role} recv${codecLabel(r.codecId)}`, v: `${fmtBytes(r.bytesReceived)} / ${r.packetsReceived} pkts @ ${fmtBps(br)}${fps} (lost ${lost}, jitter ${jit})` }); |
| 3322 | } |
| 3323 | }); |
| 3324 | return out; |
| 3325 | } |
| 3326 | |
| 3327 | function start() { |
| 3328 | if (timer) return; |
| 3329 | timer = setInterval(tick, 1000); |
| 3330 | tick(); |
| 3331 | } |
| 3332 | function stop() { if (timer) { clearInterval(timer); timer = null; } prev.clear(); } |
| 3333 | /* Called from the peer-select onchange so the next tick treats the new |
| 3334 | peer as a fresh poll instead of inheriting stale bitrate deltas. */ |
| 3335 | function refreshNow() { prev.clear(); tick(); } |
| 3336 | |
| 3337 | async function exportAll() { |
| 3338 | const peer = selectedPeer(); |
| 3339 | if (!peer || !peer.pc) return; |
| 3340 | const stats = await peer.pc.getStats(); |
| 3341 | const arr = []; |
| 3342 | stats.forEach(r => arr.push(r)); |
| 3343 | const blob = new Blob([JSON.stringify(arr, null, 2)], { type: 'application/json' }); |
| 3344 | const url = URL.createObjectURL(blob); |
| 3345 | const a = document.createElement('a'); |
| 3346 | a.href = url; |
| 3347 | a.download = 'webrtc-stats-' + Date.now() + '.json'; |
| 3348 | document.body.appendChild(a); a.click(); a.remove(); |
| 3349 | URL.revokeObjectURL(url); |
| 3350 | } |
| 3351 | |
| 3352 | function toggleConsoleStats() { |
| 3353 | if (consoleTimer) { |
| 3354 | clearInterval(consoleTimer); consoleTimer = null; |
| 3355 | App.log.info('stats', 'console poll stopped'); |
| 3356 | } else { |
| 3357 | consoleTimer = setInterval(async () => { |
| 3358 | const peer = selectedPeer(); |
| 3359 | if (!peer || !peer.pc) return; |
| 3360 | const stats = await peer.pc.getStats(); |
| 3361 | const rows = collect(peer, stats); |
| 3362 | App.log.debug('stats', peer.label, rows.map(r => r.k + '=' + r.v).join(' | ')); |
| 3363 | }, 2000); |
| 3364 | App.log.info('stats', 'console poll started (2s)'); |
| 3365 | } |
| 3366 | } |
| 3367 | |
| 3368 | return { start, stop, exportAll, toggleConsoleStats, refreshNow }; |
| 3369 | })(); |
| 3370 | |
| 3371 | function escapeHtml(s) { |
| 3372 | return s.replace(/[&<>"']/g, c => ({ '&':'&','<':'<','>':'>','"':'"',"'":''' })[c]); |
| 3373 | } |
| 3374 | |
| 3375 | /* ------------------------------------------------------------------------- |
| 3376 | Per-peer tile factory. Each tile owns: a main video, a PIP video (for cam |
| 3377 | when a screen share is in the main slot), a dedicated audio element so |
| 3378 | audio plays even when the tile is in its empty state, a mic-muted badge, |
| 3379 | a leave button, a label, and a connection-state pill. |
| 3380 | ------------------------------------------------------------------------- */ |
| 3381 | App.tiles = (() => { |
| 3382 | const EMPTY_SVG = '<svg viewBox="0 0 24 24" width="64" height="64" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-label="no video"><path d="M16 16v1a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V7a2 2 0 0 1 2-2h2m5.66 0H14a2 2 0 0 1 2 2v3.34l1 1L23 7v10"/><line x1="1" y1="1" x2="23" y2="23"/></svg>'; |
| 3383 | const MIC_SVG = '<svg viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-label="muted"><line x1="1" y1="1" x2="23" y2="23"/><path d="M9 9v3a3 3 0 0 0 5.12 2.12M15 9.34V4a3 3 0 0 0-5.94-.6"/><path d="M17 16.95A7 7 0 0 1 5 12v-2m14 0v2a7 7 0 0 1-.11 1.23"/><line x1="12" y1="19" x2="12" y2="23"/></svg>'; |
| 3384 | |
| 3385 | /* --- Conference layout --- |
| 3386 | Pick the rows × cols decomposition that maximises tile area for the |
| 3387 | current container, with each tile constrained to a 16:9 box. Then size |
| 3388 | the grid template + each tile explicitly so the browser doesn't second- |
| 3389 | guess us. Re-runs on ResizeObserver and on every tile add/remove. */ |
| 3390 | const TILE_RATIO = 16 / 9; |
| 3391 | const GAP = 8; |
| 3392 | const PAD = 12; |
| 3393 | function bestGrid(n, W, H) { |
| 3394 | let best = { rows: 1, cols: n, tileW: 0, tileH: 0, area: 0 }; |
| 3395 | for (let rows = 1; rows <= n; rows++) { |
| 3396 | const cols = Math.ceil(n / rows); |
| 3397 | const cellW = (W - (cols - 1) * GAP) / cols; |
| 3398 | const cellH = (H - (rows - 1) * GAP) / rows; |
| 3399 | if (cellW <= 0 || cellH <= 0) continue; |
| 3400 | let tileW = cellW, tileH = cellW / TILE_RATIO; |
| 3401 | if (tileH > cellH) { tileH = cellH; tileW = cellH * TILE_RATIO; } |
| 3402 | const area = tileW * tileH; |
| 3403 | if (area > best.area) best = { rows, cols, tileW, tileH, area }; |
| 3404 | } |
| 3405 | return best; |
| 3406 | } |
| 3407 | function relayout() { |
| 3408 | const area = document.getElementById('video-area'); |
| 3409 | if (!area) return; |
| 3410 | /* Skip while something is fullscreen — re-parenting the row containers |
| 3411 | (which we do below) detaches the fullscreened <video> from the |
| 3412 | document, and browsers immediately exit fullscreen when their target |
| 3413 | element leaves the DOM. A fullscreenchange listener re-runs us when |
| 3414 | the user exits. */ |
| 3415 | if (document.fullscreenElement) return; |
| 3416 | /* Gather every tile, whether it's currently a direct child of the area |
| 3417 | (newly added) or already inside a .video-row from a previous relayout. */ |
| 3418 | const tiles = Array.from(area.querySelectorAll('.video-tile')); |
| 3419 | const n = tiles.length; |
| 3420 | if (!n) return; |
| 3421 | const innerW = Math.max(0, area.clientWidth - PAD * 2); |
| 3422 | const innerH = Math.max(0, area.clientHeight - PAD * 2); |
| 3423 | if (innerW === 0 || innerH === 0) return; |
| 3424 | /* The flex column adds (rows-1) gaps vertically; the rowEl adds (perRow-1) |
| 3425 | gaps horizontally. bestGrid already accounts for that. */ |
| 3426 | const { rows, cols, tileW, tileH } = bestGrid(n, innerW, innerH); |
| 3427 | /* Remove any old row wrappers (but keep tile DOM identity so videos |
| 3428 | and event listeners aren't recreated). */ |
| 3429 | area.querySelectorAll(':scope > .video-row').forEach(r => r.remove()); |
| 3430 | for (const t of tiles) { |
| 3431 | t.style.width = tileW + 'px'; |
| 3432 | t.style.height = '100%'; |
| 3433 | } |
| 3434 | for (let r = 0; r < rows; r++) { |
| 3435 | const rowEl = document.createElement('div'); |
| 3436 | rowEl.className = 'video-row'; |
| 3437 | rowEl.style.height = tileH + 'px'; |
| 3438 | const start = r * cols; |
| 3439 | const end = Math.min(n, start + cols); |
| 3440 | for (let i = start; i < end; i++) rowEl.appendChild(tiles[i]); |
| 3441 | area.appendChild(rowEl); |
| 3442 | } |
| 3443 | } |
| 3444 | let _ro = null; |
| 3445 | let _fsBound = false; |
| 3446 | function ensureObserver() { |
| 3447 | if (_ro) return; |
| 3448 | const area = document.getElementById('video-area'); |
| 3449 | if (!area || typeof ResizeObserver !== 'function') return; |
| 3450 | _ro = new ResizeObserver(() => relayout()); |
| 3451 | _ro.observe(area); |
| 3452 | /* Re-run layout after the user exits fullscreen — the observer fired |
| 3453 | during entry and we skipped it, so the post-exit shape needs catching |
| 3454 | up. Bound once for the page lifetime. */ |
| 3455 | if (!_fsBound) { |
| 3456 | document.addEventListener('fullscreenchange', () => { |
| 3457 | if (!document.fullscreenElement) relayout(); |
| 3458 | }); |
| 3459 | _fsBound = true; |
| 3460 | } |
| 3461 | } |
| 3462 | function teardownObserver() { |
| 3463 | if (!_ro) return; |
| 3464 | try { _ro.disconnect(); } catch (_) {} |
| 3465 | _ro = null; |
| 3466 | } |
| 3467 | |
| 3468 | function add(peer) { |
| 3469 | if (document.getElementById('tile-' + peer.id)) return; |
| 3470 | const area = document.getElementById('video-area'); |
| 3471 | if (!area) return; |
| 3472 | const tile = document.createElement('div'); |
| 3473 | tile.className = 'video-tile empty'; |
| 3474 | tile.id = 'tile-' + peer.id; |
| 3475 | tile.innerHTML = ` |
| 3476 | <video class="vid-main" autoplay playsinline></video> |
| 3477 | <audio class="audio-remote" autoplay></audio> |
| 3478 | <div class="pip hidden"> |
| 3479 | <video class="vid-pip" autoplay playsinline></video> |
| 3480 | </div> |
| 3481 | <div class="empty-state">${EMPTY_SVG}</div> |
| 3482 | <div class="mic-muted hidden" title="microphone muted">${MIC_SVG}</div> |
| 3483 | <button class="leave-peer" title="Disconnect from this peer" aria-label="Disconnect from this peer">×</button> |
| 3484 | <span class="conn-pill new">connecting</span> |
| 3485 | <span class="tile-label"></span>`; |
| 3486 | area.appendChild(tile); |
| 3487 | refreshLabel(peer); |
| 3488 | refreshConnState(peer); |
| 3489 | tile.querySelector('.leave-peer').addEventListener('click', e => { |
| 3490 | e.stopPropagation(); |
| 3491 | removePeer(peer, { sendBye: true }); |
| 3492 | }); |
| 3493 | /* Click anywhere on a tile that's showing a screen share → fullscreen the |
| 3494 | main video, matching the previous remote-tile fullscreen behaviour. */ |
| 3495 | tile.addEventListener('click', e => { |
| 3496 | if (!tile.classList.contains('screen')) return; |
| 3497 | if (e.target.closest('.pip')) return; |
| 3498 | if (e.target.closest('.leave-peer')) return; |
| 3499 | const video = tile.querySelector(':scope > .vid-main'); |
| 3500 | if (!video) return; |
| 3501 | if (document.fullscreenElement) { |
| 3502 | (document.exitFullscreen?.() || document.webkitExitFullscreen?.() || Promise.resolve()) |
| 3503 | .catch?.(err => App.log.warn('ui', 'exit fullscreen failed', err.message)); |
| 3504 | } else { |
| 3505 | (video.requestFullscreen?.() || video.webkitRequestFullscreen?.() || Promise.resolve()) |
| 3506 | .catch?.(err => App.log.warn('ui', 'fullscreen failed', err.message)); |
| 3507 | } |
| 3508 | }); |
| 3509 | App.media.refreshRemoteDisplayFor(peer); |
| 3510 | ensureObserver(); |
| 3511 | relayout(); |
| 3512 | } |
| 3513 | function remove(peer) { |
| 3514 | const tile = document.getElementById('tile-' + peer.id); |
| 3515 | if (tile) tile.remove(); |
| 3516 | relayout(); |
| 3517 | } |
| 3518 | function refreshLabel(peer) { |
| 3519 | const tile = document.getElementById('tile-' + peer.id); |
| 3520 | if (!tile) return; |
| 3521 | const label = tile.querySelector('.tile-label'); |
| 3522 | if (label) label.textContent = displayNameOf(peer); |
| 3523 | /* Re-run displayNameOf for every peer in case the disambiguation suffix |
| 3524 | changed because of this peer's username update. */ |
| 3525 | for (const other of App.state.peers.values()) { |
| 3526 | if (other === peer) continue; |
| 3527 | const t = document.getElementById('tile-' + other.id); |
| 3528 | const l = t && t.querySelector('.tile-label'); |
| 3529 | if (l) l.textContent = displayNameOf(other); |
| 3530 | } |
| 3531 | } |
| 3532 | function refreshConnState(peer) { |
| 3533 | const tile = document.getElementById('tile-' + peer.id); |
| 3534 | if (!tile) return; |
| 3535 | const pill = tile.querySelector('.conn-pill'); |
| 3536 | if (!pill) return; |
| 3537 | const st = (peer.pc && peer.pc.connectionState) || 'closed'; |
| 3538 | pill.textContent = st; |
| 3539 | pill.className = 'conn-pill ' + st; |
| 3540 | } |
| 3541 | function refreshAll() { |
| 3542 | for (const peer of App.state.peers.values()) { |
| 3543 | if (!document.getElementById('tile-' + peer.id)) add(peer); |
| 3544 | refreshLabel(peer); |
| 3545 | refreshConnState(peer); |
| 3546 | App.media.refreshRemoteDisplayFor(peer); |
| 3547 | } |
| 3548 | ensureObserver(); |
| 3549 | relayout(); |
| 3550 | } |
| 3551 | return { add, remove, refreshLabel, refreshConnState, refreshAll, relayout, teardownObserver }; |
| 3552 | })(); |
| 3553 | |
| 3554 | /* ------------------------------------------------------------------------- |
| 3555 | Empty-call banner — shown when no peers are connected, dismissed forever |
| 3556 | (per session) on first successful join. |
| 3557 | ------------------------------------------------------------------------- */ |
| 3558 | App.banner = (() => { |
| 3559 | function refresh() { |
| 3560 | const el = document.getElementById('call-banner'); |
| 3561 | if (!el) return; |
| 3562 | const noPeers = App.state.peers.size === 0; |
| 3563 | const show = noPeers && !App.state.bannerDismissed; |
| 3564 | el.classList.toggle('hidden', !show); |
| 3565 | } |
| 3566 | return { refresh }; |
| 3567 | })(); |
| 3568 | |
| 3569 | /* Tear down ONE peer's connection without leaving the call view. */ |
| 3570 | function removePeer(peer, opts) { |
| 3571 | if (!peer) return; |
| 3572 | const sendBye = !opts || opts.sendBye !== false; |
| 3573 | if (sendBye) App.chat.sendByeTo(peer); |
| 3574 | if (peer.signalAbort) { try { peer.signalAbort.abort(); } catch (_) {} peer.signalAbort = null; } |
| 3575 | try { if (peer.dcChat) peer.dcChat.close(); } catch (_) {} |
| 3576 | try { if (peer.dcFiles) peer.dcFiles.close(); } catch (_) {} |
| 3577 | try { if (peer.pc) peer.pc.close(); } catch (_) {} |
| 3578 | /* Tear down this peer's loopback pcB, if any. */ |
| 3579 | if (peer.loopbackB) { |
| 3580 | try { peer.loopbackB.close(); } catch (_) {} |
| 3581 | peer.loopbackB = null; |
| 3582 | } |
| 3583 | App.files.cleanupForPeer(peer); |
| 3584 | App.chat.notePeerClosed?.(peer); |
| 3585 | App.tiles.remove(peer); |
| 3586 | App.state.peers.delete(peer.id); |
| 3587 | if (App.state.pendingPeer === peer) App.state.pendingPeer = null; |
| 3588 | App.chat.appendSystem?.(displayNameOf(peer) + ' left'); |
| 3589 | updateConnPill(); |
| 3590 | App.banner.refresh(); |
| 3591 | setInCallControlsEnabled(); |
| 3592 | App.ui.refreshPeerWidgets?.(); |
| 3593 | } |
| 3594 | |
| 3595 | /* The remote side sent a 'bye', or its pc transitioned to a terminal state. |
| 3596 | Same path as user-initiated removePeer, but suppresses bye fan-back to |
| 3597 | avoid a round-trip on already-dead channels. */ |
| 3598 | function onPeerLeft(peer, reason) { |
| 3599 | if (!App.state.peers.has(peer.id)) return; /* already gone */ |
| 3600 | if (peer.leaveReceived) return; |
| 3601 | peer.leaveReceived = true; |
| 3602 | App.log.info('app', peer.label, 'peer left', reason || ''); |
| 3603 | removePeer(peer, { sendBye: false }); |
| 3604 | } |
| 3605 | |
| 3606 | /* ------------------------------------------------------------------------- |
| 3607 | PeerConnection creation + event wiring |
| 3608 | ------------------------------------------------------------------------- */ |
| 3609 | /* Both Chromium and Firefox obfuscate the local IP of host ICE candidates by |
| 3610 | default (mDNS host-name obfuscation), which makes per-interface diagnosis |
| 3611 | of icecandidateerror impossible — the address either ends in ".local" or |
| 3612 | is empty/0.0.0.0. Detect this on the first host candidate we see and log a |
| 3613 | one-shot hint pointing at the relevant browser preference. */ |
| 3614 | let _obfuscationHintLogged = false; |
| 3615 | function maybeWarnObfuscation(c) { |
| 3616 | if (_obfuscationHintLogged) return; |
| 3617 | if (c.type !== 'host') return; |
| 3618 | const addr = c.address || ''; |
| 3619 | const obfuscated = !addr || addr.endsWith('.local') || addr === '0.0.0.0' || addr === '::'; |
| 3620 | if (!obfuscated) return; |
| 3621 | _obfuscationHintLogged = true; |
| 3622 | App.log.info('pc', |
| 3623 | 'host-candidate addresses are obfuscated (got "' + (addr || 'empty') + '"); ' + |
| 3624 | 'icecandidateerror "from=" will not identify a real interface. To see real local IPs:\n' + |
| 3625 | ' • Firefox: about:config → media.peerconnection.ice.obfuscate_host_addresses = false\n' + |
| 3626 | ' • Chromium: chrome://flags/#enable-webrtc-hide-local-ips-with-mdns → Disabled'); |
| 3627 | } |
| 3628 | |
| 3629 | /* Create the RTCPeerConnection for one PeerCtx, wiring all the lifecycle |
| 3630 | handlers with that peer's identity baked in. */ |
| 3631 | function newPeerPc(peer) { |
| 3632 | const cfg = { iceServers: App.state.settings.iceServers || [], iceCandidatePoolSize: 0 }; |
| 3633 | const pc = new RTCPeerConnection(cfg); |
| 3634 | peer.pc = pc; |
| 3635 | pc.addEventListener('icegatheringstatechange', () => |
| 3636 | App.log.debug('pc', peer.label, 'iceGatheringState', pc.iceGatheringState)); |
| 3637 | pc.addEventListener('iceconnectionstatechange', () => |
| 3638 | App.log.info('pc', peer.label, 'iceConnectionState', pc.iceConnectionState)); |
| 3639 | pc.addEventListener('connectionstatechange', () => { |
| 3640 | App.log.info('pc', peer.label, 'connectionState', pc.connectionState); |
| 3641 | updateConnPill(); |
| 3642 | /* Tile state may need to swap an empty placeholder for a stalled badge. */ |
| 3643 | App.tiles?.refreshConnState(peer); |
| 3644 | if (pc.connectionState === 'failed' || pc.connectionState === 'closed') { |
| 3645 | /* Surface as a leave so the tile is cleaned up. The peer-initiated |
| 3646 | 'bye' message gets there faster, but this is the backstop. */ |
| 3647 | onPeerLeft(peer, pc.connectionState); |
| 3648 | } |
| 3649 | }); |
| 3650 | pc.addEventListener('signalingstatechange', () => |
| 3651 | App.log.debug('pc', peer.label, 'signalingState', pc.signalingState)); |
| 3652 | pc.addEventListener('icecandidate', e => { |
| 3653 | if (e.candidate) maybeWarnObfuscation(e.candidate); |
| 3654 | }); |
| 3655 | pc.addEventListener('icecandidateerror', e => { |
| 3656 | const local = e.address ? (e.address + ':' + (e.port || '?')) : (e.hostCandidate || '?'); |
| 3657 | App.log.warn('pc', peer.label, 'iceCandidateError', |
| 3658 | e.errorCode, e.errorText || '(no text)', |
| 3659 | 'server=' + (e.url || '(none)'), |
| 3660 | 'from=' + local); |
| 3661 | }); |
| 3662 | pc.addEventListener('negotiationneeded', () => { |
| 3663 | /* All three m-sections (mic/cam/screen) are pre-allocated in preallocate() |
| 3664 | with direction=sendrecv before the very first createOffer, so toggling |
| 3665 | a track via replaceTrack() never changes the SDP shape. Any |
| 3666 | negotiationneeded the browser fires is spurious for this app and |
| 3667 | safely ignored. */ |
| 3668 | App.log.debug('pc', peer.label, 'negotiationneeded fired (ignored — this app does not renegotiate)'); |
| 3669 | }); |
| 3670 | pc.addEventListener('track', e => { |
| 3671 | App.log.info('pc', peer.label, 'track received', e.track.kind, 'mid=' + (e.transceiver && e.transceiver.mid)); |
| 3672 | handleRemoteTrack(peer, e); |
| 3673 | }); |
| 3674 | return pc; |
| 3675 | } |
| 3676 | |
| 3677 | /* Local media state derived from the live local tracks / screen stream. */ |
| 3678 | function localMediaState() { |
| 3679 | return { |
| 3680 | mic: !!App.state.micTrack, |
| 3681 | cam: !!App.state.camTrack, |
| 3682 | screen: !!App.state.screenStream, |
| 3683 | }; |
| 3684 | } |
| 3685 | /* Tell every connected peer about our current mic/cam/screen state. Sent |
| 3686 | over each chat data channel as a typed JSON message — replaceTrack(null) |
| 3687 | doesn't itself propagate any signal across the wire, so the receiver |
| 3688 | would otherwise just see frozen video on the last frame. */ |
| 3689 | function broadcastMediaState() { |
| 3690 | for (const peer of App.state.peers.values()) sendMediaStateTo(peer); |
| 3691 | } |
| 3692 | |
| 3693 | /* Map a receiver-side transceiver to its role using the stored references |
| 3694 | on the PeerCtx from preallocate() / adoptTransceiversFromRemote(). Identity |
| 3695 | comparison is the only reliable cue — relying on indexOf-by-kind misroutes |
| 3696 | cam and screen when only one of them has live frames (track events fire |
| 3697 | out of order across browsers / offerer-vs-joiner roles). */ |
| 3698 | function roleForTransceiver(peer, t) { |
| 3699 | if (!t) return null; |
| 3700 | if (t === peer.micTransceiver) return 'mic'; |
| 3701 | if (t === peer.camTransceiver) return 'cam'; |
| 3702 | if (t === peer.screenTransceiver) return 'screen'; |
| 3703 | return null; |
| 3704 | } |
| 3705 | |
| 3706 | /* Track listeners we attached, so we can remove the exact references later |
| 3707 | instead of leaking anonymous arrow closures over the lifetime of the page. */ |
| 3708 | const remoteTrackListeners = new WeakMap(); /* track -> { unmute, ended } */ |
| 3709 | |
| 3710 | function attachRemoteTrackListeners(peer, track, onEnded) { |
| 3711 | detachRemoteTrackListeners(track); |
| 3712 | const refresh = () => App.media.refreshRemoteDisplayFor(peer); |
| 3713 | const handlers = { unmute: refresh, ended: onEnded }; |
| 3714 | track.addEventListener('unmute', refresh); |
| 3715 | track.addEventListener('ended', onEnded); |
| 3716 | remoteTrackListeners.set(track, handlers); |
| 3717 | } |
| 3718 | function detachRemoteTrackListeners(track) { |
| 3719 | const h = remoteTrackListeners.get(track); |
| 3720 | if (!h) return; |
| 3721 | track.removeEventListener('unmute', h.unmute); |
| 3722 | track.removeEventListener('ended', h.ended); |
| 3723 | remoteTrackListeners.delete(track); |
| 3724 | } |
| 3725 | |
| 3726 | function rebuildRemoteStreamsFor(peer) { |
| 3727 | if (!peer || !peer.pc) return; |
| 3728 | let audio = null, cam = null, screen = null; |
| 3729 | for (const t of peer.pc.getTransceivers()) { |
| 3730 | const tr = t.receiver && t.receiver.track; |
| 3731 | if (!tr) continue; |
| 3732 | const role = roleForTransceiver(peer, t); |
| 3733 | if (role === 'mic' && !audio) audio = tr; |
| 3734 | if (role === 'cam' && !cam) cam = tr; |
| 3735 | if (role === 'screen' && !screen) screen = tr; |
| 3736 | } |
| 3737 | const remote = new MediaStream(); |
| 3738 | if (audio) remote.addTrack(audio); |
| 3739 | if (cam) remote.addTrack(cam); |
| 3740 | peer.remoteStream = remote; |
| 3741 | const remoteScreen = new MediaStream(); |
| 3742 | if (screen) remoteScreen.addTrack(screen); |
| 3743 | peer.remoteScreenStream = remoteScreen; |
| 3744 | if (audio) attachRemoteTrackListeners(peer, audio, () => { remote.removeTrack(audio); App.media.refreshRemoteDisplayFor(peer); }); |
| 3745 | if (cam) attachRemoteTrackListeners(peer, cam, () => { remote.removeTrack(cam); App.media.refreshRemoteDisplayFor(peer); }); |
| 3746 | if (screen) attachRemoteTrackListeners(peer, screen, () => { remoteScreen.removeTrack(screen); App.media.refreshRemoteDisplayFor(peer); }); |
| 3747 | App.log.info('pc', peer.label, 'remote streams rebuilt', 'audio', !!audio, 'cam', !!cam, 'screen', !!screen); |
| 3748 | App.media.refreshRemoteDisplayFor(peer); |
| 3749 | } |
| 3750 | |
| 3751 | function handleRemoteTrack(peer, e) { |
| 3752 | const role = roleForTransceiver(peer, e.transceiver); |
| 3753 | App.log.info('pc', peer.label, 'remote track', e.track.kind, 'role', role, 'muted', e.track.muted, 'mid', e.transceiver && e.transceiver.mid); |
| 3754 | if (role === 'mic' || role === 'cam') { |
| 3755 | if (!peer.remoteStream) peer.remoteStream = new MediaStream(); |
| 3756 | peer.remoteStream.addTrack(e.track); |
| 3757 | attachRemoteTrackListeners(peer, e.track, () => { |
| 3758 | if (peer.remoteStream) peer.remoteStream.removeTrack(e.track); |
| 3759 | App.media.refreshRemoteDisplayFor(peer); |
| 3760 | }); |
| 3761 | App.media.refreshRemoteDisplayFor(peer); |
| 3762 | } else if (role === 'screen') { |
| 3763 | if (!peer.remoteScreenStream) peer.remoteScreenStream = new MediaStream(); |
| 3764 | peer.remoteScreenStream.addTrack(e.track); |
| 3765 | attachRemoteTrackListeners(peer, e.track, () => { |
| 3766 | if (peer.remoteScreenStream) peer.remoteScreenStream.removeTrack(e.track); |
| 3767 | App.media.refreshRemoteDisplayFor(peer); |
| 3768 | }); |
| 3769 | App.media.refreshRemoteDisplayFor(peer); |
| 3770 | } |
| 3771 | } |
| 3772 | |
| 3773 | /* Connection pill summarizes the worst-of state across all peers. */ |
| 3774 | function updateConnPill() { |
| 3775 | const pill = document.getElementById('conn-pill'); |
| 3776 | if (!pill) return; |
| 3777 | const peers = peerList(); |
| 3778 | if (!peers.length) { pill.textContent = 'no peers'; pill.className = 'pill'; return; } |
| 3779 | const states = peers.map(p => p.pc ? p.pc.connectionState : 'closed'); |
| 3780 | const worst = states.includes('failed') ? 'failed' |
| 3781 | : states.includes('disconnected') ? 'disconnected' |
| 3782 | : states.includes('closed') ? 'closed' |
| 3783 | : states.includes('connecting') || states.includes('new') ? 'connecting' |
| 3784 | : 'connected'; |
| 3785 | const label = peers.length === 1 ? worst : worst + ' (' + peers.length + ')'; |
| 3786 | pill.textContent = label; |
| 3787 | pill.className = 'pill ' + ( |
| 3788 | worst === 'connected' ? 'ok' : |
| 3789 | worst === 'connecting' || worst === 'new' ? 'warn' : |
| 3790 | 'err' |
| 3791 | ); |
| 3792 | } |
| 3793 | |
| 3794 | /* ------------------------------------------------------------------------- |
| 3795 | Signaling flows: initiator, joiner, loopback |
| 3796 | |
| 3797 | Each invocation builds a fresh PeerCtx, registers it in App.state.peers, |
| 3798 | and runs the chosen handshake against that peer alone. Local media, |
| 3799 | chat/files UI, etc. are shared across all peers — only the per-peer |
| 3800 | pc/dc/transceivers/streams live on the ctx. |
| 3801 | ------------------------------------------------------------------------- */ |
| 3802 | /* Invoked when the user clicks Cancel in the step modal. Tears down the |
| 3803 | in-flight setup (closes pc, aborts any long-poll fetch). Leaves any |
| 3804 | already-connected peers alone — only the pending peer is dropped. */ |
| 3805 | function cancelSetup() { |
| 3806 | App.log.info('app', 'setup cancelled by user'); |
| 3807 | App.state.userCancelled = true; |
| 3808 | App.progress.hide(); |
| 3809 | const pending = App.state.pendingPeer; |
| 3810 | App.state.pendingPeer = null; |
| 3811 | if (pending) removePeer(pending, { sendBye: false }); |
| 3812 | } |
| 3813 | |
| 3814 | /* Create + register a PeerCtx, wire its pc, return it. */ |
| 3815 | function beginPeer(opts) { |
| 3816 | const peer = newPeerCtx({ |
| 3817 | id: opts.id || generatePeerId(), |
| 3818 | role: opts.role, |
| 3819 | label: opts.label, |
| 3820 | username: opts.username || 'unknown', |
| 3821 | }); |
| 3822 | /* Seed per-peer defaults from current settings — these are setParameters- |
| 3823 | tunable later via the per-peer settings panel. */ |
| 3824 | const s = App.state.settings; |
| 3825 | peer.videoMaxBitrateKbps = s.video.maxBitrateKbps; |
| 3826 | peer.videoDegradationPreference = s.video.degradationPreference; |
| 3827 | peer.screenMaxBitrateKbps = s.screen.maxBitrateKbps; |
| 3828 | peer.screenDegradationPreference = s.screen.degradationPreference; |
| 3829 | peer.sendVideoCodec = s.sendVideoCodec || 'auto'; |
| 3830 | newPeerPc(peer); |
| 3831 | App.state.peers.set(peer.id, peer); |
| 3832 | App.state.pendingPeer = peer; |
| 3833 | return peer; |
| 3834 | } |
| 3835 | |
| 3836 | /* Promote pending → committed: invoked once the handshake reaches a point |
| 3837 | where giving up would require cooperating with the remote side. */ |
| 3838 | function commitPeer(peer) { |
| 3839 | if (App.state.pendingPeer === peer) App.state.pendingPeer = null; |
| 3840 | App.tiles?.add(peer); |
| 3841 | App.state.bannerDismissed = true; |
| 3842 | App.banner?.refresh(); |
| 3843 | updateConnPill(); |
| 3844 | App.ui.refreshPeerWidgets?.(); |
| 3845 | } |
| 3846 | |
| 3847 | async function startInitiator() { |
| 3848 | const peer = beginPeer({ role: 'initiator', label: 'init' }); |
| 3849 | App.media.preallocate(peer); |
| 3850 | App.media.applyVideoCodecPreference(peer); |
| 3851 | const ac = new AbortController(); |
| 3852 | peer.signalAbort = ac; |
| 3853 | |
| 3854 | /* Data channels MUST be created on the initiator before createOffer |
| 3855 | so they're included in the SDP m-section list. */ |
| 3856 | peer.dcChat = peer.pc.createDataChannel('chat', { ordered: true }); |
| 3857 | peer.dcFiles = peer.pc.createDataChannel('files', { ordered: true }); |
| 3858 | App.chat.attach(peer, peer.dcChat); |
| 3859 | App.files.attach(peer, peer.dcFiles); |
| 3860 | |
| 3861 | App.progress.show('Creating offer…', 'Negotiating local SDP.'); |
| 3862 | let offer = await peer.pc.createOffer(); |
| 3863 | offer.sdp = App.codec.mungeOpus(offer.sdp, App.state.settings.opus); |
| 3864 | await peer.pc.setLocalDescription(offer); |
| 3865 | App.log.info('signal', peer.label, 'offer created, waiting for ICE gathering…'); |
| 3866 | App.progress.showModal('Gathering ICE candidates…', |
| 3867 | iceGatheringSubtitle(), |
| 3868 | { onCancel: cancelSetup }); |
| 3869 | await App.signal.waitForIceComplete(peer.pc, ac.signal); |
| 3870 | if (ac.signal.aborted) throw new Error('cancelled'); |
| 3871 | App.log.info('signal', peer.label, 'ICE gathering complete; offer ready to export'); |
| 3872 | |
| 3873 | App.progress.hide(); |
| 3874 | renderInitiatorExchange(peer); |
| 3875 | } |
| 3876 | |
| 3877 | async function startJoiner() { |
| 3878 | const peer = beginPeer({ role: 'joiner', label: 'join' }); |
| 3879 | |
| 3880 | peer.pc.ondatachannel = e => { |
| 3881 | if (!App.state.peers.has(peer.id)) { App.log.warn('signal', peer.label, 'datachannel from stale pc, ignoring'); return; } |
| 3882 | App.log.info('signal', peer.label, 'incoming data channel', e.channel.label); |
| 3883 | if (e.channel.label === 'chat') { peer.dcChat = e.channel; App.chat.attach(peer, e.channel); } |
| 3884 | if (e.channel.label === 'files') { peer.dcFiles = e.channel; App.files.attach(peer, e.channel); } |
| 3885 | }; |
| 3886 | |
| 3887 | renderJoinerExchange(peer); |
| 3888 | } |
| 3889 | |
| 3890 | async function finishJoiner(peer, offerObj) { |
| 3891 | const ac = peer.signalAbort || new AbortController(); |
| 3892 | peer.signalAbort = ac; |
| 3893 | App.progress.show('Applying remote offer…', 'Parsing your peer\'s SDP.'); |
| 3894 | await peer.pc.setRemoteDescription(offerObj); |
| 3895 | App.media.adoptTransceiversFromRemote(peer); |
| 3896 | App.media.applyVideoCodecPreference(peer); |
| 3897 | rebuildRemoteStreamsFor(peer); |
| 3898 | await App.media.publishLocalTracksTo(peer); |
| 3899 | App.progress.show('Creating answer…', 'Negotiating local SDP.'); |
| 3900 | let answer = await peer.pc.createAnswer(); |
| 3901 | answer.sdp = App.codec.mungeOpus(answer.sdp, App.state.settings.opus); |
| 3902 | await peer.pc.setLocalDescription(answer); |
| 3903 | App.progress.showModal('Gathering ICE candidates…', |
| 3904 | iceGatheringSubtitle(), |
| 3905 | { onCancel: cancelSetup }); |
| 3906 | await App.signal.waitForIceComplete(peer.pc, ac.signal); |
| 3907 | if (ac.signal.aborted) throw new Error('cancelled'); |
| 3908 | App.progress.hide(); |
| 3909 | showAnswerForJoiner(peer); |
| 3910 | } |
| 3911 | |
| 3912 | async function applyAnswerOnInitiator(peer, answerObj) { |
| 3913 | await peer.pc.setRemoteDescription(answerObj); |
| 3914 | rebuildRemoteStreamsFor(peer); |
| 3915 | await App.media.publishLocalTracksTo(peer); |
| 3916 | App.log.info('signal', peer.label, 'remote answer applied; waiting to connect…'); |
| 3917 | } |
| 3918 | |
| 3919 | /* ------------------------------------------------------------------------- |
| 3920 | Auto signaling: HTTP relay (POST/long-poll GET) against a tiny server. |
| 3921 | See server/signal.c for the protocol. The relay never touches media or |
| 3922 | the data channels — those still flow peer-to-peer. |
| 3923 | ------------------------------------------------------------------------- */ |
| 3924 | async function signalPost(base, code, slot, body, signal) { |
| 3925 | const url = base.replace(/\/+$/, '') + '/room/' + encodeURIComponent(code) + '/' + slot; |
| 3926 | const r = await fetch(url, { |
| 3927 | method: 'POST', |
| 3928 | headers: { 'Content-Type': 'application/sdp' }, |
| 3929 | body, |
| 3930 | signal, |
| 3931 | }); |
| 3932 | if (!r.ok) throw new Error('POST ' + slot + ' failed: ' + r.status); |
| 3933 | } |
| 3934 | |
| 3935 | /* Long-poll a slot. The server holds the request open for ~10 s; on a 204 |
| 3936 | No Content we retry. The total deadline is generous so a peer can take |
| 3937 | their time sharing the code. Aborts cleanly when hangup() is called by |
| 3938 | tracking a shared AbortController. (Status used to be 408, but Firefox |
| 3939 | silently auto-retries 408 internally per RFC 7231 §6.5.7 — JS only sees |
| 3940 | one fetch and CORS-fails after ~10 retries.) */ |
| 3941 | async function signalPoll(base, code, slot, totalDeadlineMs, signal) { |
| 3942 | const url = base.replace(/\/+$/, '') + '/room/' + encodeURIComponent(code) + '/' + slot; |
| 3943 | const start = Date.now(); |
| 3944 | while (!signal.aborted) { |
| 3945 | let r; |
| 3946 | try { r = await fetch(url, { signal }); } |
| 3947 | catch (e) { |
| 3948 | if (signal.aborted) throw e; |
| 3949 | throw new Error('GET ' + slot + ' failed: ' + e.message); |
| 3950 | } |
| 3951 | if (r.status === 200) return await r.text(); |
| 3952 | if (r.status !== 204) throw new Error('GET ' + slot + ' status ' + r.status); |
| 3953 | if (Date.now() - start > totalDeadlineMs) throw new Error('peer did not respond within ' + Math.round(totalDeadlineMs/1000) + 's'); |
| 3954 | /* 204 → server-side long-poll timed out; loop and reconnect. */ |
| 3955 | } |
| 3956 | throw new Error('aborted'); |
| 3957 | } |
| 3958 | |
| 3959 | /* Initiator side: produce the offer the normal way, push it to the relay, |
| 3960 | then long-poll the answer slot. Skips the blob copy/paste exchange view. */ |
| 3961 | async function startInitiatorAuto(code) { |
| 3962 | const base = App.state.settings.signaling.serverUrl; |
| 3963 | const peer = beginPeer({ role: 'initiator', label: 'init/' + code }); |
| 3964 | const ac = new AbortController(); |
| 3965 | peer.signalAbort = ac; |
| 3966 | |
| 3967 | App.media.preallocate(peer); |
| 3968 | App.media.applyVideoCodecPreference(peer); |
| 3969 | peer.dcChat = peer.pc.createDataChannel('chat', { ordered: true }); |
| 3970 | peer.dcFiles = peer.pc.createDataChannel('files', { ordered: true }); |
| 3971 | App.chat.attach(peer, peer.dcChat); |
| 3972 | App.files.attach(peer, peer.dcFiles); |
| 3973 | |
| 3974 | App.progress.show('Creating offer…', 'Negotiating local SDP.'); |
| 3975 | let offer = await peer.pc.createOffer(); |
| 3976 | offer.sdp = App.codec.mungeOpus(offer.sdp, App.state.settings.opus); |
| 3977 | await peer.pc.setLocalDescription(offer); |
| 3978 | App.progress.showModal('Gathering ICE candidates…', |
| 3979 | iceGatheringSubtitle(), |
| 3980 | { onCancel: cancelSetup }); |
| 3981 | await App.signal.waitForIceComplete(peer.pc, ac.signal); |
| 3982 | if (ac.signal.aborted) throw new Error('cancelled'); |
| 3983 | |
| 3984 | const offerBlob = App.signal.encode(peer.pc.localDescription); |
| 3985 | App.progress.show('Publishing offer…', 'Room ' + code + ' on ' + base); |
| 3986 | await signalPost(base, code, 'offer', offerBlob, ac.signal); |
| 3987 | |
| 3988 | App.progress.showModal('Waiting for peer…', |
| 3989 | 'Share the room code with them. They have 5 minutes to join.', |
| 3990 | { roomCode: code, onCancel: cancelSetup }); |
| 3991 | const answerText = await signalPoll(base, code, 'answer', 5 * 60 * 1000, ac.signal); |
| 3992 | if (ac.signal.aborted) throw new Error('cancelled'); |
| 3993 | App.progress.show('Applying answer…', 'Finalizing the handshake.'); |
| 3994 | const obj = App.signal.decode(answerText); |
| 3995 | if (obj.type !== 'answer') throw new Error('expected an answer, got ' + obj.type); |
| 3996 | await applyAnswerOnInitiator(peer, obj); |
| 3997 | App.progress.hide(); |
| 3998 | commitPeer(peer); |
| 3999 | goToCall(); |
| 4000 | } |
| 4001 | |
| 4002 | /* Joiner side: long-poll the offer slot, apply it, push the answer back. */ |
| 4003 | async function startJoinerAuto(code) { |
| 4004 | const base = App.state.settings.signaling.serverUrl; |
| 4005 | const peer = beginPeer({ role: 'joiner', label: 'join/' + code }); |
| 4006 | const ac = new AbortController(); |
| 4007 | peer.signalAbort = ac; |
| 4008 | |
| 4009 | peer.pc.ondatachannel = e => { |
| 4010 | if (!App.state.peers.has(peer.id)) { App.log.warn('signal', peer.label, 'datachannel from stale pc, ignoring'); return; } |
| 4011 | App.log.info('signal', peer.label, 'incoming data channel', e.channel.label); |
| 4012 | if (e.channel.label === 'chat') { peer.dcChat = e.channel; App.chat.attach(peer, e.channel); } |
| 4013 | if (e.channel.label === 'files') { peer.dcFiles = e.channel; App.files.attach(peer, e.channel); } |
| 4014 | }; |
| 4015 | |
| 4016 | App.progress.showModal('Waiting for offer…', |
| 4017 | 'Polling the signaling server until your peer publishes their offer.', |
| 4018 | { roomCode: code, onCancel: cancelSetup }); |
| 4019 | const offerText = await signalPoll(base, code, 'offer', 5 * 60 * 1000, ac.signal); |
| 4020 | if (ac.signal.aborted) throw new Error('cancelled'); |
| 4021 | const obj = App.signal.decode(offerText); |
| 4022 | if (obj.type !== 'offer') throw new Error('expected an offer, got ' + obj.type); |
| 4023 | |
| 4024 | App.progress.show('Applying offer…', 'Building answer.'); |
| 4025 | await peer.pc.setRemoteDescription(obj); |
| 4026 | App.media.adoptTransceiversFromRemote(peer); |
| 4027 | App.media.applyVideoCodecPreference(peer); |
| 4028 | rebuildRemoteStreamsFor(peer); |
| 4029 | await App.media.publishLocalTracksTo(peer); |
| 4030 | |
| 4031 | let answer = await peer.pc.createAnswer(); |
| 4032 | answer.sdp = App.codec.mungeOpus(answer.sdp, App.state.settings.opus); |
| 4033 | await peer.pc.setLocalDescription(answer); |
| 4034 | App.progress.showModal('Gathering ICE candidates…', |
| 4035 | iceGatheringSubtitle(), |
| 4036 | { onCancel: cancelSetup }); |
| 4037 | await App.signal.waitForIceComplete(peer.pc, ac.signal); |
| 4038 | if (ac.signal.aborted) throw new Error('cancelled'); |
| 4039 | |
| 4040 | App.progress.show('Publishing answer…', 'Room ' + code + ' on ' + base); |
| 4041 | await signalPost(base, code, 'answer', App.signal.encode(peer.pc.localDescription), ac.signal); |
| 4042 | App.progress.hide(); |
| 4043 | commitPeer(peer); |
| 4044 | goToCall(); |
| 4045 | } |
| 4046 | |
| 4047 | async function startLoopback() { |
| 4048 | /* Each loopback adds one PeerCtx (the visible side, pcA) plus its own |
| 4049 | synthetic pcB, stored on the peer. Multiple loopbacks can coexist — |
| 4050 | useful for stress-testing the conference grid. */ |
| 4051 | const idx = peerList().filter(p => p.role === 'loopback').length + 1; |
| 4052 | const username = idx === 1 ? 'Loopback' : 'Loopback ' + idx; |
| 4053 | const peer = beginPeer({ role: 'loopback', label: 'loop-A/' + idx, username }); |
| 4054 | const pcA = peer.pc; |
| 4055 | const pcB = new RTCPeerConnection({ iceServers: App.state.settings.iceServers || [], iceCandidatePoolSize: 0 }); |
| 4056 | peer.loopbackB = pcB; |
| 4057 | |
| 4058 | /* Trickle candidates between the two local PCs. Buffer candidates that |
| 4059 | arrive before the target has its remote description set — otherwise |
| 4060 | addIceCandidate rejects with InvalidStateError. */ |
| 4061 | const pendingForA = []; |
| 4062 | const pendingForB = []; |
| 4063 | let remoteSetA = false, remoteSetB = false; |
| 4064 | const flush = (pc, queue) => { while (queue.length) pc.addIceCandidate(queue.shift()).catch(err => App.log.warn('loopback', 'flush', err.message)); }; |
| 4065 | pcA.onicecandidate = e => { |
| 4066 | if (!e.candidate) return; |
| 4067 | if (remoteSetB) pcB.addIceCandidate(e.candidate).catch(err => App.log.warn('loopback', 'B add', err.message)); |
| 4068 | else pendingForB.push(e.candidate); |
| 4069 | }; |
| 4070 | pcB.onicecandidate = e => { |
| 4071 | if (!e.candidate) return; |
| 4072 | if (remoteSetA) pcA.addIceCandidate(e.candidate).catch(err => App.log.warn('loopback', 'A add', err.message)); |
| 4073 | else pendingForA.push(e.candidate); |
| 4074 | }; |
| 4075 | |
| 4076 | pcB.ondatachannel = e => { |
| 4077 | /* In loopback the *visible* call uses pcA's POV. pcB is the synthetic |
| 4078 | peer; echoing both data channels back to A is how A learns about |
| 4079 | its "peer's" media state (which in loopback is itself), how chat |
| 4080 | messages round-trip, and how files appear as incoming rows for |
| 4081 | verification. The file echo doubles memory while a transfer is |
| 4082 | in flight, but loopback exists for testing so that trade-off is |
| 4083 | acceptable. */ |
| 4084 | e.channel.onmessage = ev => { |
| 4085 | App.log.debug('loopback', 'B got', e.channel.label, typeof ev.data === 'string' ? ev.data.slice(0, 80) : '(binary)'); |
| 4086 | try { e.channel.send(ev.data); } catch (_) {} |
| 4087 | }; |
| 4088 | }; |
| 4089 | pcB.ontrack = e => App.log.debug('loopback', 'B got track', e.track.kind); |
| 4090 | |
| 4091 | App.media.preallocate(peer); |
| 4092 | App.media.applyVideoCodecPreference(peer); |
| 4093 | peer.dcChat = pcA.createDataChannel('chat', { ordered: true }); |
| 4094 | peer.dcFiles = pcA.createDataChannel('files', { ordered: true }); |
| 4095 | App.chat.attach(peer, peer.dcChat); |
| 4096 | App.files.attach(peer, peer.dcFiles); |
| 4097 | |
| 4098 | App.progress.show('Negotiating local loopback…', 'Exchanging SDP between the two in-tab peers.'); |
| 4099 | const offer = await pcA.createOffer(); |
| 4100 | offer.sdp = App.codec.mungeOpus(offer.sdp, App.state.settings.opus); |
| 4101 | await pcA.setLocalDescription(offer); |
| 4102 | await pcB.setRemoteDescription(offer); |
| 4103 | remoteSetB = true; flush(pcB, pendingForB); |
| 4104 | /* Transceivers auto-created by setRemoteDescription default to recvonly |
| 4105 | because pcB has no local tracks yet. Force them to sendrecv so pcB can |
| 4106 | mirror tracks back to pcA when the user later toggles mic/cam/screen. */ |
| 4107 | for (const t of pcB.getTransceivers()) { |
| 4108 | try { t.direction = 'sendrecv'; } |
| 4109 | catch (e) { App.log.warn('loopback', 'could not upgrade transceiver to sendrecv', e.message); } |
| 4110 | } |
| 4111 | |
| 4112 | const answer = await pcB.createAnswer(); |
| 4113 | answer.sdp = App.codec.mungeOpus(answer.sdp, App.state.settings.opus); |
| 4114 | await pcB.setLocalDescription(answer); |
| 4115 | await pcA.setRemoteDescription(answer); |
| 4116 | remoteSetA = true; flush(pcA, pendingForA); |
| 4117 | rebuildRemoteStreamsFor(peer); |
| 4118 | await App.media.publishLocalTracksTo(peer); |
| 4119 | /* If mic/cam/screen were already on before the user started loopback, the |
| 4120 | mirror is empty — pcB has nothing to send back. Push the current tracks |
| 4121 | onto pcB's senders now so the synthetic peer immediately echoes them. */ |
| 4122 | App.media.mirrorToLoopback(); |
| 4123 | App.log.info('loopback', 'offer/answer exchanged locally'); |
| 4124 | App.progress.hide(); |
| 4125 | commitPeer(peer); |
| 4126 | goToCall(); |
| 4127 | } |
| 4128 | |
| 4129 | /* ------------------------------------------------------------------------- |
| 4130 | UI: views + event wiring |
| 4131 | ------------------------------------------------------------------------- */ |
| 4132 | const viewToHash = { |
| 4133 | 'view-welcome': 'welcome', |
| 4134 | 'view-sdp-inspect': 'sdp-inspect', |
| 4135 | 'view-call': 'call', |
| 4136 | }; |
| 4137 | |
| 4138 | /* The configure and exchange steps are modal <dialog>s, not routed views. |
| 4139 | These helpers keep each dialog plus its progress row state in sync with |
| 4140 | the caller. */ |
| 4141 | function openConfigureDialog() { |
| 4142 | const dlg = document.getElementById('view-configure'); |
| 4143 | if (!dlg || typeof dlg.showModal !== 'function') return; |
| 4144 | if (dlg.open) return; |
| 4145 | document.getElementById('cfg-progress')?.classList.add('hidden'); |
| 4146 | try { dlg.showModal(); } catch (_) {} |
| 4147 | } |
| 4148 | function closeConfigureDialog() { |
| 4149 | const dlg = document.getElementById('view-configure'); |
| 4150 | if (dlg && dlg.open) { try { dlg.close(); } catch (_) {} } |
| 4151 | document.getElementById('cfg-progress')?.classList.add('hidden'); |
| 4152 | } |
| 4153 | function openExchangeDialog() { |
| 4154 | const dlg = document.getElementById('view-exchange'); |
| 4155 | if (!dlg || typeof dlg.showModal !== 'function') return; |
| 4156 | if (dlg.open) return; |
| 4157 | document.getElementById('exch-progress')?.classList.add('hidden'); |
| 4158 | try { dlg.showModal(); } catch (_) {} |
| 4159 | } |
| 4160 | function closeExchangeDialog() { |
| 4161 | const dlg = document.getElementById('view-exchange'); |
| 4162 | if (dlg && dlg.open) { try { dlg.close(); } catch (_) {} } |
| 4163 | document.getElementById('exch-progress')?.classList.add('hidden'); |
| 4164 | /* Reset both step bodies so a future open starts clean. */ |
| 4165 | document.getElementById('step-1-body')?.replaceChildren(); |
| 4166 | document.getElementById('step-2-body')?.replaceChildren(); |
| 4167 | } |
| 4168 | const hashToView = Object.fromEntries( |
| 4169 | Object.entries(viewToHash).map(([v, h]) => [h, v]) |
| 4170 | ); |
| 4171 | |
| 4172 | function clearViewInputs(viewEl) { |
| 4173 | viewEl.querySelectorAll('input, textarea').forEach(el => { |
| 4174 | const t = (el.type || '').toLowerCase(); |
| 4175 | if (t === 'button' || t === 'submit' || t === 'reset' || t === 'file' || |
| 4176 | t === 'checkbox' || t === 'radio') return; |
| 4177 | el.value = ''; |
| 4178 | }); |
| 4179 | } |
| 4180 | |
| 4181 | /* Reset transient UI state held outside <input>/<textarea> elements. Called |
| 4182 | only for views the user is actually leaving — not on initial page load |
| 4183 | for views that were never visible — so App-global state like the log |
| 4184 | buffer isn't wiped on every fresh start. */ |
| 4185 | function resetViewState(id) { |
| 4186 | if (id === 'view-sdp-inspect') { |
| 4187 | document.getElementById('sdp-inspect-out')?.replaceChildren(); |
| 4188 | const status = document.getElementById('sdp-inspect-status'); |
| 4189 | if (status) { status.textContent = ''; status.className = 'pill'; } |
| 4190 | } else if (id === 'view-call') { |
| 4191 | /* App.chat.clearAll empties both the chat-log DOM and the outMsgs map |
| 4192 | so detached message nodes can be GC'd. */ |
| 4193 | App.chat?.clearAll?.(); |
| 4194 | if (App.files && App.files.clearAll) { |
| 4195 | App.files.clearAll('out'); |
| 4196 | App.files.clearAll('in'); |
| 4197 | } |
| 4198 | if (App.log && App.log.clear) App.log.clear(); |
| 4199 | document.getElementById('console-drawer')?.classList.add('hidden'); |
| 4200 | } |
| 4201 | } |
| 4202 | |
| 4203 | function showView(id, opts) { |
| 4204 | const wasVisible = new Set(); |
| 4205 | document.querySelectorAll('.view').forEach(v => { |
| 4206 | if (!v.classList.contains('hidden')) wasVisible.add(v.id); |
| 4207 | v.classList.add('hidden'); |
| 4208 | if (v.id !== id) clearViewInputs(v); |
| 4209 | }); |
| 4210 | document.getElementById(id).classList.remove('hidden'); |
| 4211 | wasVisible.forEach(vid => { if (vid !== id) resetViewState(vid); }); |
| 4212 | if (opts && opts.push === false) return; |
| 4213 | const url = '#' + viewToHash[id]; |
| 4214 | const state = { view: id }; |
| 4215 | /* The call view holds a live RTCPeerConnection — we don't want a normal |
| 4216 | back/forward stop on it. Replace, so back lands where we came from. */ |
| 4217 | if (id === 'view-call' || (history.state && history.state.view === id)) { |
| 4218 | history.replaceState(state, '', url); |
| 4219 | } else { |
| 4220 | history.pushState(state, '', url); |
| 4221 | } |
| 4222 | } |
| 4223 | |
| 4224 | function currentView() { |
| 4225 | for (const id of Object.keys(viewToHash)) { |
| 4226 | const el = document.getElementById(id); |
| 4227 | if (el && !el.classList.contains('hidden')) return id; |
| 4228 | } |
| 4229 | return null; |
| 4230 | } |
| 4231 | |
| 4232 | function onPopstate(event) { |
| 4233 | const wasOnCall = currentView() === 'view-call'; |
| 4234 | const hashView = hashToView[(location.hash || '').replace(/^#/, '')]; |
| 4235 | const target = (event.state && event.state.view) || hashView || 'view-welcome'; |
| 4236 | |
| 4237 | if (wasOnCall) { |
| 4238 | if (!confirm('Hang up and leave the call?')) { |
| 4239 | history.pushState({ view: 'view-call' }, '', '#call'); |
| 4240 | return; |
| 4241 | } |
| 4242 | teardownAll(); |
| 4243 | history.replaceState({ view: 'view-welcome' }, '', '#welcome'); |
| 4244 | showView('view-welcome', { push: false }); |
| 4245 | return; |
| 4246 | } |
| 4247 | |
| 4248 | /* Call needs in-flight state (live pc) that doesn't exist when reached |
| 4249 | via back/forward — redirect to welcome. */ |
| 4250 | if (target === 'view-call') { |
| 4251 | if (App.state.peers.size || App.state.pendingPeer) teardownAll(); |
| 4252 | history.replaceState({ view: 'view-welcome' }, '', '#welcome'); |
| 4253 | showView('view-welcome', { push: false }); |
| 4254 | return; |
| 4255 | } |
| 4256 | |
| 4257 | if (App.state.peers.size || App.state.pendingPeer) teardownAll(); |
| 4258 | showView(target, { push: false }); |
| 4259 | } |
| 4260 | |
| 4261 | function resolveInitialView() { |
| 4262 | const hash = (location.hash || '').replace(/^#/, ''); |
| 4263 | const requested = hashToView[hash]; |
| 4264 | const reloadSafe = requested === 'view-welcome' || requested === 'view-sdp-inspect'; |
| 4265 | const target = reloadSafe ? requested : 'view-welcome'; |
| 4266 | history.replaceState({ view: target }, '', '#' + viewToHash[target]); |
| 4267 | showView(target, { push: false }); |
| 4268 | } |
| 4269 | |
| 4270 | /* Role badge in the topbar reflects the role of the in-flight (pending) |
| 4271 | peer setup, if any. Otherwise hidden. */ |
| 4272 | function updateRoleBadge() { |
| 4273 | const badge = document.getElementById('role-badge'); |
| 4274 | const cfg = document.getElementById('role-title-cfg'); |
| 4275 | const exch = document.getElementById('role-title-exch'); |
| 4276 | const r = App.state.pendingPeer ? App.state.pendingPeer.role : null; |
| 4277 | if (!r) { |
| 4278 | if (badge) badge.classList.add('hidden'); |
| 4279 | if (cfg) cfg.textContent = ''; |
| 4280 | if (exch) exch.textContent = ''; |
| 4281 | return; |
| 4282 | } |
| 4283 | if (badge) { badge.classList.remove('hidden'); badge.textContent = r; badge.className = 'role-badge ' + r; } |
| 4284 | if (cfg) { cfg.textContent = r; cfg.className = 'role-badge ' + r; } |
| 4285 | if (exch) { exch.textContent = r; exch.className = 'role-badge ' + r; } |
| 4286 | } |
| 4287 | |
| 4288 | /* Open the Add Participant flow for the given role. The configure/exchange |
| 4289 | views are reused (the existing layout), so the user can edit the per-add |
| 4290 | signaling mode without leaving the call. On Cancel or after the new peer |
| 4291 | joins, we return to the call view. */ |
| 4292 | function pickRoleForAdd(role) { |
| 4293 | /* No global pc to tear down — adding a participant just spins up a new |
| 4294 | PeerCtx. If a previous Add flow was abandoned, cancelSetup clears it. */ |
| 4295 | if (App.state.pendingPeer) cancelSetup(); |
| 4296 | /* Store the chosen role on a transient slot so cfg-continue knows what to |
| 4297 | do. The actual PeerCtx is created in start*() once the user clicks |
| 4298 | Continue. */ |
| 4299 | App.state.nextAddRole = role; |
| 4300 | updateRoleBadge(); |
| 4301 | populateConfigInputs(); |
| 4302 | document.getElementById('cfg-lede').textContent = |
| 4303 | role === 'loopback' ? 'Loopback mode: both peers run in this tab and skip the paste step.' |
| 4304 | : role === 'initiator' ? 'You will generate an offer; your peer pastes it and sends back an answer.' |
| 4305 | : 'Your peer sends you an offer; you paste it and send back the generated answer.'; |
| 4306 | openConfigureDialog(); |
| 4307 | refreshInsecureWarning(); |
| 4308 | } |
| 4309 | |
| 4310 | function refreshInsecureWarning() { |
| 4311 | /* Browsers gate gUM/gDM behind a secure context. Surface this up-front so |
| 4312 | the user knows microphone/camera/screen-share won't be available — but |
| 4313 | the call itself still works as receive-only. */ |
| 4314 | const banner = document.getElementById('insecure-warn'); |
| 4315 | if (!banner) return; |
| 4316 | const noMedia = !navigator.mediaDevices || !navigator.mediaDevices.getUserMedia; |
| 4317 | if (noMedia) banner.classList.remove('hidden'); |
| 4318 | else banner.classList.add('hidden'); |
| 4319 | } |
| 4320 | |
| 4321 | /* ICE rows */ |
| 4322 | function renderIceRows() { |
| 4323 | const wrap = document.getElementById('ice-rows'); |
| 4324 | wrap.innerHTML = ''; |
| 4325 | App.state.settings.iceServers.forEach((s, i) => { |
| 4326 | const urls = Array.isArray(s.urls) ? s.urls.join(',') : (s.urls || ''); |
| 4327 | const row = document.createElement('div'); |
| 4328 | row.className = 'ice-row'; |
| 4329 | row.innerHTML = ` |
| 4330 | <input type="text" placeholder="stun:host:port or turn:host:port" value="${escapeAttr(urls)}"> |
| 4331 | <input type="text" placeholder="username (optional)" value="${escapeAttr(s.username || '')}"> |
| 4332 | <input type="text" placeholder="credential (optional)" value="${escapeAttr(s.credential || '')}"> |
| 4333 | <button class="ghost" title="Remove"><svg class="ic" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><line x1="6" y1="6" x2="18" y2="18"/><line x1="6" y1="18" x2="18" y2="6"/></svg></button>`; |
| 4334 | const [u, un, cr, rm] = row.children; |
| 4335 | u.addEventListener('input', () => { s.urls = u.value.includes(',') ? u.value.split(',').map(x=>x.trim()) : u.value; }); |
| 4336 | un.addEventListener('input', () => { s.username = un.value || undefined; }); |
| 4337 | cr.addEventListener('input', () => { s.credential = cr.value || undefined; }); |
| 4338 | rm.addEventListener('click', () => { App.state.settings.iceServers.splice(i, 1); renderIceRows(); }); |
| 4339 | wrap.appendChild(row); |
| 4340 | }); |
| 4341 | } |
| 4342 | function escapeAttr(s) { return String(s).replace(/&/g, '&').replace(/"/g, '"').replace(/</g, '<'); } |
| 4343 | |
| 4344 | function populateCodecDropdown(selId) { |
| 4345 | const sel = document.getElementById(selId); |
| 4346 | if (!sel) return; |
| 4347 | /* Remove previously added options in reverse so each removal doesn't shift |
| 4348 | the indices of options we still need to inspect. */ |
| 4349 | for (let i = sel.options.length - 1; i >= 0; i--) { |
| 4350 | if (sel.options[i].value !== 'auto') sel.remove(i); |
| 4351 | } |
| 4352 | if (typeof RTCRtpSender === 'undefined' || !RTCRtpSender.getCapabilities) return; |
| 4353 | const caps = RTCRtpSender.getCapabilities('video'); |
| 4354 | if (!caps || !caps.codecs) return; |
| 4355 | /* Some codecs (H264, AV1) appear multiple times with different profile |
| 4356 | params — dedupe by subtype. RED/ULPFEC/rtx aren't real media codecs to |
| 4357 | pick, so filter them out. */ |
| 4358 | const seen = new Set(); |
| 4359 | const skip = new Set(['rtx', 'red', 'ulpfec', 'flexfec-03']); |
| 4360 | for (const c of caps.codecs) { |
| 4361 | const sub = (c.mimeType || '').split('/')[1] || ''; |
| 4362 | const key = sub.toLowerCase(); |
| 4363 | if (!sub || skip.has(key) || seen.has(key)) continue; |
| 4364 | seen.add(key); |
| 4365 | const opt = document.createElement('option'); |
| 4366 | opt.value = sub; |
| 4367 | opt.textContent = sub; |
| 4368 | sel.appendChild(opt); |
| 4369 | } |
| 4370 | } |
| 4371 | |
| 4372 | function populateConfigInputs() { |
| 4373 | renderIceRows(); |
| 4374 | populateCodecDropdown('preferred-codec'); |
| 4375 | populateCodecDropdown('send-codec'); |
| 4376 | const s = App.state.settings; |
| 4377 | const $ = id => document.getElementById(id); |
| 4378 | $('o-stereo').checked = s.opus.stereo; |
| 4379 | $('o-fec').checked = s.opus.fec; |
| 4380 | $('o-dtx').checked = s.opus.dtx; |
| 4381 | $('o-cbr').checked = s.opus.cbr; |
| 4382 | $('o-maxbr').value = s.opus.maxAverageBitrate || ''; |
| 4383 | /* Reflect the saved preference if it still exists in the populated list, |
| 4384 | otherwise fall back to auto. Compare case-insensitively so a saved |
| 4385 | "VP8" still matches a hypothetical browser that returns "vp8" — and |
| 4386 | preserve whatever casing the current browser actually gave us. */ |
| 4387 | const setSel = (id, val) => { |
| 4388 | const el = $(id); |
| 4389 | if (!el) return; |
| 4390 | const want = (val || 'auto').toLowerCase(); |
| 4391 | const match = Array.from(el.options).find(o => o.value.toLowerCase() === want); |
| 4392 | el.value = match ? match.value : 'auto'; |
| 4393 | }; |
| 4394 | setSel('preferred-codec', s.preferredVideoCodec); |
| 4395 | setSel('send-codec', s.sendVideoCodec); |
| 4396 | |
| 4397 | /* Signaling mode UI */ |
| 4398 | $('sig-server-url').value = s.signaling.serverUrl || ''; |
| 4399 | $('sig-ice-timeout').value = Math.round((s.signaling.iceGatherTimeoutMs || 0) / 1000); |
| 4400 | applySignalingMode(s.signaling.mode); |
| 4401 | /* Loopback doesn't use signaling at all — hide the card so the user isn't |
| 4402 | given irrelevant choices. */ |
| 4403 | $('signaling-card').classList.toggle('hidden', App.state.nextAddRole === 'loopback'); |
| 4404 | } |
| 4405 | |
| 4406 | function applySignalingMode(mode) { |
| 4407 | const isAuto = mode === 'auto'; |
| 4408 | App.state.settings.signaling.mode = isAuto ? 'auto' : 'manual'; |
| 4409 | document.getElementById('sig-mode-manual').classList.toggle('active', !isAuto); |
| 4410 | document.getElementById('sig-mode-auto').classList.toggle('active', isAuto); |
| 4411 | document.getElementById('sig-help-manual').classList.toggle('hidden', isAuto); |
| 4412 | document.getElementById('sig-help-auto').classList.toggle('hidden', !isAuto); |
| 4413 | document.getElementById('sig-auto-fields').classList.toggle('hidden', !isAuto); |
| 4414 | /* The Continue button's wording reflects what happens next. */ |
| 4415 | const cont = document.getElementById('cfg-continue'); |
| 4416 | if (cont) cont.textContent = isAuto ? 'Connect →' : 'Continue to signaling →'; |
| 4417 | } |
| 4418 | |
| 4419 | function randomRoomCode() { |
| 4420 | /* Short and pronounceable-ish: 8 lowercase alphanumeric chars from a |
| 4421 | reduced alphabet that drops easily-confused glyphs. */ |
| 4422 | const alphabet = 'abcdefghjkmnpqrstuvwxyz23456789'; |
| 4423 | const a = new Uint8Array(8); |
| 4424 | crypto.getRandomValues(a); |
| 4425 | let out = ''; |
| 4426 | for (const b of a) out += alphabet[b % alphabet.length]; |
| 4427 | return out; |
| 4428 | } |
| 4429 | |
| 4430 | function readConfigInputs() { |
| 4431 | const s = App.state.settings; |
| 4432 | const $ = id => document.getElementById(id); |
| 4433 | s.opus.stereo = $('o-stereo').checked; |
| 4434 | s.opus.fec = $('o-fec').checked; |
| 4435 | s.opus.dtx = $('o-dtx').checked; |
| 4436 | s.opus.cbr = $('o-cbr').checked; |
| 4437 | s.opus.maxAverageBitrate = parseInt($('o-maxbr').value, 10) || 0; |
| 4438 | s.preferredVideoCodec = $('preferred-codec').value || 'auto'; |
| 4439 | s.sendVideoCodec = $('send-codec').value || 'auto'; |
| 4440 | s.signaling.serverUrl = ($('sig-server-url').value || '').trim().replace(/\/+$/, ''); |
| 4441 | /* Seconds in the UI, milliseconds in state. 0 = no timeout; clamp negatives to 0. */ |
| 4442 | const tSec = parseInt($('sig-ice-timeout').value, 10); |
| 4443 | s.signaling.iceGatherTimeoutMs = Number.isFinite(tSec) && tSec > 0 ? tSec * 1000 : 0; |
| 4444 | saveIce(); |
| 4445 | saveSignaling(); |
| 4446 | } |
| 4447 | |
| 4448 | /* Wire the Upload button on a paste box: reads the chosen file as text into |
| 4449 | the `blob-in` textarea so the user can then click Apply. Does not auto-apply |
| 4450 | — the user still reviews and submits manually. */ |
| 4451 | function wireUploadButton(name) { |
| 4452 | const btn = document.getElementById('blob-upload'); |
| 4453 | const file = document.getElementById('blob-upload-file'); |
| 4454 | const ta = document.getElementById('blob-in'); |
| 4455 | const statusEl = document.getElementById('blob-in-status'); |
| 4456 | btn.addEventListener('click', () => file.click()); |
| 4457 | file.addEventListener('change', async () => { |
| 4458 | const f = file.files && file.files[0]; |
| 4459 | if (!f) return; |
| 4460 | try { |
| 4461 | ta.value = await f.text(); |
| 4462 | statusEl.textContent = 'loaded ' + f.name; statusEl.className = 'pill ok'; |
| 4463 | App.log.info('signal', name + ' loaded from ' + f.name); |
| 4464 | } catch (e) { |
| 4465 | statusEl.textContent = 'read failed: ' + e.message; statusEl.className = 'pill err'; |
| 4466 | App.log.error('signal', 'file read failed', e.message); |
| 4467 | } finally { |
| 4468 | /* Reset so re-selecting the same file fires `change` again. */ |
| 4469 | file.value = ''; |
| 4470 | } |
| 4471 | }); |
| 4472 | } |
| 4473 | |
| 4474 | /* Render the outgoing-blob block (textarea + controls) into `body`. Owns its |
| 4475 | own copy/download/base64-toggle wiring; re-encodes from peer.pc.localDescription |
| 4476 | when the toggle flips so the visible blob always matches the setting. |
| 4477 | `extraButtons` is an array of {id,label,cls,onClick} appended after Download. */ |
| 4478 | function mountOutgoingBlob(body, name, peer, extraButtons) { |
| 4479 | const extras = (extraButtons || []).map(b => |
| 4480 | `<button id="${b.id}" class="${b.cls || 'ghost'}">${b.label}</button>`).join(''); |
| 4481 | body.innerHTML = ` |
| 4482 | <textarea id="blob-out" readonly spellcheck="false"></textarea> |
| 4483 | <div class="blob-controls"> |
| 4484 | <button id="blob-copy" class="primary">Copy</button> |
| 4485 | <button id="blob-download" class="ghost">Download</button> |
| 4486 | ${extras} |
| 4487 | <label class="row"><input type="checkbox" id="b64-toggle"> Base64-wrap <span class="small">(safer for paste channels that mangle whitespace)</span></label> |
| 4488 | <span class="pill" id="blob-out-stats"></span> |
| 4489 | </div>`; |
| 4490 | |
| 4491 | const ta = body.querySelector('#blob-out'); |
| 4492 | const stats = body.querySelector('#blob-out-stats'); |
| 4493 | const b64 = body.querySelector('#b64-toggle'); |
| 4494 | b64.checked = !!App.state.settings.base64; |
| 4495 | |
| 4496 | let current = ''; |
| 4497 | function refresh() { |
| 4498 | const desc = peer && peer.pc && peer.pc.localDescription; |
| 4499 | if (!desc) return; |
| 4500 | current = App.signal.encode(desc); |
| 4501 | ta.value = current; |
| 4502 | stats.textContent = current.length + ' bytes'; |
| 4503 | } |
| 4504 | refresh(); |
| 4505 | |
| 4506 | const copyBtn = body.querySelector('#blob-copy'); |
| 4507 | if (!navigator.clipboard || !navigator.clipboard.writeText) { |
| 4508 | copyBtn.disabled = true; |
| 4509 | copyBtn.title = 'Clipboard API not available in this context (requires HTTPS or localhost). Select the text above and copy manually.'; |
| 4510 | } else { |
| 4511 | copyBtn.addEventListener('click', async () => { |
| 4512 | try { await navigator.clipboard.writeText(current); App.log.info('signal', name + ' copied'); } |
| 4513 | catch (e) { App.log.warn('signal', 'clipboard write failed', e.message); } |
| 4514 | }); |
| 4515 | } |
| 4516 | |
| 4517 | body.querySelector('#blob-download').addEventListener('click', () => { |
| 4518 | const wrapped = App.state.settings.base64; |
| 4519 | const ext = wrapped ? 'txt' : 'json'; |
| 4520 | const mime = wrapped ? 'text/plain' : 'application/json'; |
| 4521 | const blob = new Blob([current], { type: mime }); |
| 4522 | const url = URL.createObjectURL(blob); |
| 4523 | const a = document.createElement('a'); |
| 4524 | a.href = url; a.download = `webrtc-${name}.${ext}`; |
| 4525 | document.body.appendChild(a); a.click(); a.remove(); |
| 4526 | URL.revokeObjectURL(url); |
| 4527 | App.log.info('signal', name + ' downloaded as ' + a.download); |
| 4528 | }); |
| 4529 | |
| 4530 | (extraButtons || []).forEach(b => { |
| 4531 | body.querySelector('#' + b.id).addEventListener('click', b.onClick); |
| 4532 | }); |
| 4533 | |
| 4534 | b64.addEventListener('change', e => { |
| 4535 | App.state.settings.base64 = e.target.checked; |
| 4536 | refresh(); |
| 4537 | }); |
| 4538 | } |
| 4539 | |
| 4540 | /* Exchange views */ |
| 4541 | function renderInitiatorExchange(peer) { |
| 4542 | document.getElementById('step-1-h').textContent = 'Step 1: send this offer to your peer'; |
| 4543 | mountOutgoingBlob(document.getElementById('step-1-body'), 'offer', peer); |
| 4544 | |
| 4545 | /* The initiator needs BOTH steps visible: send the offer, then paste the |
| 4546 | answer. Make sure step-2 is shown — a prior joiner flow may have hidden |
| 4547 | it. */ |
| 4548 | document.getElementById('step-2-card').classList.remove('hidden'); |
| 4549 | document.getElementById('step-2-h').textContent = 'Step 2: paste your peer\'s answer'; |
| 4550 | const s2 = document.getElementById('step-2-body'); |
| 4551 | s2.innerHTML = ` |
| 4552 | <textarea id="blob-in" spellcheck="false" placeholder="Paste answer JSON here"></textarea> |
| 4553 | <div class="blob-controls"> |
| 4554 | <button id="blob-apply" class="primary">Apply answer</button> |
| 4555 | <button id="blob-upload" class="ghost">Upload…</button> |
| 4556 | <input id="blob-upload-file" type="file" accept=".json,.txt,application/json,text/plain" hidden> |
| 4557 | <span class="pill" id="blob-in-status"></span> |
| 4558 | </div>`; |
| 4559 | wireUploadButton('answer'); |
| 4560 | document.getElementById('blob-apply').addEventListener('click', async () => { |
| 4561 | const text = document.getElementById('blob-in').value; |
| 4562 | const statusEl = document.getElementById('blob-in-status'); |
| 4563 | try { |
| 4564 | const obj = App.signal.decode(text); |
| 4565 | if (obj.type !== 'answer') throw new Error('expected an answer, got ' + obj.type); |
| 4566 | statusEl.textContent = 'applying…'; statusEl.className = 'pill warn'; |
| 4567 | await applyAnswerOnInitiator(peer, obj); |
| 4568 | statusEl.textContent = 'applied'; statusEl.className = 'pill ok'; |
| 4569 | commitPeer(peer); |
| 4570 | closeExchangeDialog(); |
| 4571 | goToCall(); |
| 4572 | } catch (e) { |
| 4573 | statusEl.textContent = e.message; statusEl.className = 'pill err'; |
| 4574 | App.log.error('signal', 'apply answer failed', e.message); |
| 4575 | } |
| 4576 | }); |
| 4577 | |
| 4578 | openExchangeDialog(); |
| 4579 | } |
| 4580 | |
| 4581 | function renderJoinerExchange(peer) { |
| 4582 | document.getElementById('step-1-h').textContent = 'Step 1: paste the offer from your peer'; |
| 4583 | const s1 = document.getElementById('step-1-body'); |
| 4584 | s1.innerHTML = ` |
| 4585 | <textarea id="blob-in" spellcheck="false" placeholder="Paste offer JSON here"></textarea> |
| 4586 | <div class="blob-controls"> |
| 4587 | <button id="blob-apply" class="primary">Apply offer & generate answer</button> |
| 4588 | <button id="blob-upload" class="ghost">Upload…</button> |
| 4589 | <input id="blob-upload-file" type="file" accept=".json,.txt,application/json,text/plain" hidden> |
| 4590 | <span class="pill" id="blob-in-status"></span> |
| 4591 | </div>`; |
| 4592 | document.getElementById('step-2-card').classList.add('hidden'); |
| 4593 | wireUploadButton('offer'); |
| 4594 | |
| 4595 | document.getElementById('blob-apply').addEventListener('click', async () => { |
| 4596 | const text = document.getElementById('blob-in').value; |
| 4597 | const statusEl = document.getElementById('blob-in-status'); |
| 4598 | try { |
| 4599 | const obj = App.signal.decode(text); |
| 4600 | if (obj.type !== 'offer') throw new Error('expected an offer, got ' + obj.type); |
| 4601 | statusEl.textContent = 'working…'; statusEl.className = 'pill warn'; |
| 4602 | await finishJoiner(peer, obj); |
| 4603 | statusEl.textContent = 'ready'; statusEl.className = 'pill ok'; |
| 4604 | } catch (e) { |
| 4605 | statusEl.textContent = e.message; statusEl.className = 'pill err'; |
| 4606 | App.log.error('signal', 'apply offer failed', e.message); |
| 4607 | App.progress.hide(); |
| 4608 | } |
| 4609 | }); |
| 4610 | |
| 4611 | openExchangeDialog(); |
| 4612 | } |
| 4613 | |
| 4614 | function showAnswerForJoiner(peer) { |
| 4615 | document.getElementById('step-2-card').classList.remove('hidden'); |
| 4616 | document.getElementById('step-2-h').textContent = 'Step 2: send this answer back to your peer'; |
| 4617 | mountOutgoingBlob(document.getElementById('step-2-body'), 'answer', peer, [ |
| 4618 | { id: 'blob-done', label: "I've sent it →", cls: 'ghost', onClick: () => { commitPeer(peer); closeExchangeDialog(); goToCall(); } }, |
| 4619 | ]); |
| 4620 | } |
| 4621 | |
| 4622 | function goToCall() { |
| 4623 | showView('view-call'); |
| 4624 | setInCallControlsEnabled(true); |
| 4625 | /* Pre-fill runtime settings panel from current global defaults — these |
| 4626 | apply to NEW peers; per-peer overrides will be added in a later task. */ |
| 4627 | const s = App.state.settings; |
| 4628 | const $ = id => document.getElementById(id); |
| 4629 | $('rt-v-w').value = s.video.width || 0; |
| 4630 | $('rt-v-h').value = s.video.height || 0; |
| 4631 | $('rt-v-fps').value = s.video.frameRate || 0; |
| 4632 | $('rt-v-maxbr').value = s.video.maxBitrateKbps || 0; |
| 4633 | $('rt-v-degrade').value = s.video.degradationPreference || 'balanced'; |
| 4634 | populateCodecDropdown('rt-codec'); |
| 4635 | const wantSend = (s.sendVideoCodec || 'auto').toLowerCase(); |
| 4636 | const rtCodec = $('rt-codec'); |
| 4637 | const rtMatch = Array.from(rtCodec.options).find(o => o.value.toLowerCase() === wantSend); |
| 4638 | rtCodec.value = rtMatch ? rtMatch.value : 'auto'; |
| 4639 | $('rt-s-w').value = s.screen.width || 0; |
| 4640 | $('rt-s-h').value = s.screen.height || 0; |
| 4641 | $('rt-s-fps').value = s.screen.frameRate || 0; |
| 4642 | $('rt-s-maxbr').value = s.screen.maxBitrateKbps || 0; |
| 4643 | $('rt-s-degrade').value = s.screen.degradationPreference || 'maintain-resolution'; |
| 4644 | $('rt-a-aec').checked = s.audio.echoCancellation; |
| 4645 | $('rt-a-ns').checked = s.audio.noiseSuppression; |
| 4646 | $('rt-a-agc').checked = s.audio.autoGainControl; |
| 4647 | $('rt-a-channels').value = String(s.audio.channelCount || 1); |
| 4648 | $('rt-a-rate').value = s.audio.sampleRate || 0; |
| 4649 | $('rt-username').value = App.state.username || 'Anonymous'; |
| 4650 | App.stats.start(); |
| 4651 | App.tiles.refreshAll(); |
| 4652 | App.banner.refresh(); |
| 4653 | App.ui.refreshPeerWidgets?.(); |
| 4654 | /* Refresh the displays after the view is actually visible — some browsers |
| 4655 | don't render hidden video elements properly, so re-bind srcObject. */ |
| 4656 | App.media.refreshLocalDisplay(); |
| 4657 | App.media.refreshRemoteDisplay(); |
| 4658 | applyMediaButtonAvailability(); |
| 4659 | /* Set local tile label from current username. */ |
| 4660 | const localLabel = document.getElementById('tile-local-label'); |
| 4661 | if (localLabel) localLabel.textContent = (App.state.username || 'Anonymous') + ' (you)'; |
| 4662 | } |
| 4663 | |
| 4664 | /* Reflect whether at least one peer with an open data channel exists. |
| 4665 | Toolbar media buttons stay enabled even with no peers (the user might |
| 4666 | enable mic/cam before adding anyone — fan-out is a no-op). Chat + files |
| 4667 | inputs are gated by their own update*() helpers, which are wired in |
| 4668 | wire() and registered on App.ui so this function can call them. */ |
| 4669 | function setInCallControlsEnabled() { |
| 4670 | App.ui.updateChatGate?.(); |
| 4671 | App.ui.updateFilesGate?.(); |
| 4672 | /* The set of "peers with open data channels" just changed, so the recipient |
| 4673 | bars need to add/remove their chips. */ |
| 4674 | if (typeof renderRecipientBar === 'function') { |
| 4675 | renderRecipientBar('chat'); |
| 4676 | renderRecipientBar('files'); |
| 4677 | } |
| 4678 | } |
| 4679 | App.ui = App.ui || {}; |
| 4680 | |
| 4681 | /* Shared recipient-selection state for chat + files. Each set holds the |
| 4682 | peerIds the user has EXCLUDED from the current selection — empty set == |
| 4683 | "all peers". This way, peers added later are included by default. */ |
| 4684 | App.ui.chatExcluded = new Set(); |
| 4685 | App.ui.filesExcluded = new Set(); |
| 4686 | |
| 4687 | /* Compute the active recipient list for a given channel based on the |
| 4688 | excluded set and the currently-open data channels. */ |
| 4689 | App.ui.selectedChatPeers = function () { |
| 4690 | return peersWithOpenChat().filter(p => !App.ui.chatExcluded.has(p.id)); |
| 4691 | }; |
| 4692 | App.ui.selectedFilesPeers = function () { |
| 4693 | return peersWithOpenFiles().filter(p => !App.ui.filesExcluded.has(p.id)); |
| 4694 | }; |
| 4695 | |
| 4696 | /* Render one chip bar. `kind` is 'chat' or 'files'. */ |
| 4697 | function renderRecipientBar(kind) { |
| 4698 | const el = document.getElementById(kind === 'chat' ? 'chat-recipients' : 'files-recipients'); |
| 4699 | if (!el) return; |
| 4700 | const excluded = kind === 'chat' ? App.ui.chatExcluded : App.ui.filesExcluded; |
| 4701 | const available = (kind === 'chat' ? peersWithOpenChat() : peersWithOpenFiles()); |
| 4702 | /* Drop excluded ids that no longer correspond to a connected peer. */ |
| 4703 | for (const id of Array.from(excluded)) { |
| 4704 | if (!available.find(p => p.id === id)) excluded.delete(id); |
| 4705 | } |
| 4706 | el.innerHTML = ''; |
| 4707 | if (!available.length) { |
| 4708 | const span = document.createElement('span'); |
| 4709 | span.className = 'empty'; |
| 4710 | span.textContent = 'No connected peers yet — add one from the toolbar.'; |
| 4711 | el.appendChild(span); |
| 4712 | return; |
| 4713 | } |
| 4714 | const label = document.createElement('span'); |
| 4715 | label.className = 'label'; |
| 4716 | label.textContent = 'To:'; |
| 4717 | el.appendChild(label); |
| 4718 | for (const peer of available) { |
| 4719 | const chip = document.createElement('span'); |
| 4720 | const on = !excluded.has(peer.id); |
| 4721 | chip.className = 'chip' + (on ? ' on' : ''); |
| 4722 | chip.textContent = displayNameOf(peer); |
| 4723 | chip.title = on ? 'Click to exclude' : 'Click to include'; |
| 4724 | chip.addEventListener('click', () => { |
| 4725 | if (excluded.has(peer.id)) excluded.delete(peer.id); |
| 4726 | else excluded.add(peer.id); |
| 4727 | renderRecipientBar(kind); |
| 4728 | if (kind === 'chat') App.ui.updateChatGate?.(); |
| 4729 | if (kind === 'files') App.ui.updateFilesGate?.(); |
| 4730 | }); |
| 4731 | el.appendChild(chip); |
| 4732 | } |
| 4733 | } |
| 4734 | |
| 4735 | /* Refresh every peer-aware widget. Called whenever peers join/leave or |
| 4736 | their display names change. */ |
| 4737 | App.ui.refreshPeerWidgets = function () { |
| 4738 | renderRecipientBar('chat'); |
| 4739 | renderRecipientBar('files'); |
| 4740 | refreshSettingsTargetDropdown(); |
| 4741 | refreshStatsPeerDropdown(); |
| 4742 | }; |
| 4743 | |
| 4744 | /* Settings target dropdown — keeps options for {defaults, all, ...peers}. */ |
| 4745 | function refreshSettingsTargetDropdown() { |
| 4746 | const sel = document.getElementById('settings-target'); |
| 4747 | if (!sel) return; |
| 4748 | const cur = sel.value || 'all'; |
| 4749 | const peers = peerList(); |
| 4750 | const ids = new Set(['all', ...peers.map(p => p.id)]); |
| 4751 | /* Remove peer options that no longer exist. */ |
| 4752 | Array.from(sel.options).forEach(o => { |
| 4753 | if (!ids.has(o.value)) sel.removeChild(o); |
| 4754 | }); |
| 4755 | /* Ensure each peer has an option (preserve existing order). */ |
| 4756 | for (const peer of peers) { |
| 4757 | if (!sel.querySelector('option[value="' + CSS.escape(peer.id) + '"]')) { |
| 4758 | const o = document.createElement('option'); |
| 4759 | o.value = peer.id; |
| 4760 | o.textContent = displayNameOf(peer); |
| 4761 | sel.appendChild(o); |
| 4762 | } else { |
| 4763 | const o = sel.querySelector('option[value="' + CSS.escape(peer.id) + '"]'); |
| 4764 | o.textContent = displayNameOf(peer); |
| 4765 | } |
| 4766 | } |
| 4767 | const fellBack = !(peers.find(p => p.id === cur) || cur === 'all'); |
| 4768 | sel.value = fellBack ? 'all' : cur; |
| 4769 | /* Only reload the form if the effective target changed — otherwise we'd |
| 4770 | overwrite values the user is in the middle of editing. */ |
| 4771 | if (fellBack && typeof App.ui.loadSettingsForTarget === 'function') { |
| 4772 | App.ui.loadSettingsForTarget(); |
| 4773 | } |
| 4774 | } |
| 4775 | |
| 4776 | function refreshStatsPeerDropdown() { |
| 4777 | const sel = document.getElementById('stats-peer'); |
| 4778 | if (!sel) return; |
| 4779 | const cur = sel.value; |
| 4780 | const peers = peerList(); |
| 4781 | sel.innerHTML = ''; |
| 4782 | if (!peers.length) { |
| 4783 | const o = document.createElement('option'); |
| 4784 | o.value = ''; o.textContent = '(no peers)'; |
| 4785 | sel.appendChild(o); |
| 4786 | App.stats?.refreshNow?.(); |
| 4787 | return; |
| 4788 | } |
| 4789 | for (const peer of peers) { |
| 4790 | const o = document.createElement('option'); |
| 4791 | o.value = peer.id; |
| 4792 | o.textContent = displayNameOf(peer); |
| 4793 | sel.appendChild(o); |
| 4794 | } |
| 4795 | if (peers.find(p => p.id === cur)) sel.value = cur; |
| 4796 | else sel.value = peers[0].id; |
| 4797 | App.stats?.refreshNow?.(); |
| 4798 | } |
| 4799 | |
| 4800 | /* Disable mic/cam/screen toolbar buttons when they can't possibly succeed — |
| 4801 | either because the page isn't a secure context (gUM/gDM unavailable) or |
| 4802 | because no matching hardware is connected. Re-runs on devicechange so |
| 4803 | plugging in a webcam mid-call re-enables the button. */ |
| 4804 | let _deviceChangeBound = false; |
| 4805 | async function applyMediaButtonAvailability() { |
| 4806 | const hasGum = !!(navigator.mediaDevices && navigator.mediaDevices.getUserMedia); |
| 4807 | const hasGdm = !!(navigator.mediaDevices && navigator.mediaDevices.getDisplayMedia); |
| 4808 | const insecureTip = 'Unavailable in this context — requires HTTPS or localhost.'; |
| 4809 | const micBtn = document.getElementById('tb-mic'); |
| 4810 | const camBtn = document.getElementById('tb-cam'); |
| 4811 | const screenBtn = document.getElementById('tb-screen'); |
| 4812 | const micPick = document.getElementById('tb-mic-pick'); |
| 4813 | const camPick = document.getElementById('tb-cam-pick'); |
| 4814 | |
| 4815 | if (!hasGdm) { screenBtn.disabled = true; screenBtn.title = insecureTip; } |
| 4816 | if (!hasGum) { |
| 4817 | micBtn.disabled = true; micBtn.title = insecureTip; |
| 4818 | camBtn.disabled = true; camBtn.title = insecureTip; |
| 4819 | if (micPick) micPick.disabled = true; |
| 4820 | if (camPick) camPick.disabled = true; |
| 4821 | return; |
| 4822 | } |
| 4823 | |
| 4824 | /* Bind the devicechange listener once. Counts of audioinput/videoinput |
| 4825 | entries reflect presence even before permission is granted (the entries |
| 4826 | have empty labels but still exist), so this works on first call too. */ |
| 4827 | if (!_deviceChangeBound && navigator.mediaDevices.addEventListener) { |
| 4828 | navigator.mediaDevices.addEventListener('devicechange', applyMediaButtonAvailability); |
| 4829 | _deviceChangeBound = true; |
| 4830 | } |
| 4831 | |
| 4832 | let devs = []; |
| 4833 | try { |
| 4834 | devs = await navigator.mediaDevices.enumerateDevices(); |
| 4835 | } catch (e) { |
| 4836 | App.log.warn('media', 'enumerateDevices failed', e.message); |
| 4837 | /* Fall through with permissive defaults — gUM may still work. */ |
| 4838 | } |
| 4839 | const audioInputs = devs.filter(d => d.kind === 'audioinput'); |
| 4840 | const videoInputs = devs.filter(d => d.kind === 'videoinput'); |
| 4841 | const hasMic = devs.length === 0 || audioInputs.length > 0; |
| 4842 | const hasCam = devs.length === 0 || videoInputs.length > 0; |
| 4843 | |
| 4844 | /* If the device disappears while in use, don't yank the button out from |
| 4845 | under the user — leave it clickable so they can turn the active track |
| 4846 | off. The track-end handler will reset the button when the OS releases |
| 4847 | the device. */ |
| 4848 | const micOn = micBtn.classList.contains('on'); |
| 4849 | const camOn = camBtn.classList.contains('on'); |
| 4850 | micBtn.disabled = !hasMic && !micOn; |
| 4851 | micBtn.title = hasMic ? 'Enable microphone' : 'No microphone detected'; |
| 4852 | camBtn.disabled = !hasCam && !camOn; |
| 4853 | camBtn.title = hasCam ? 'Enable camera' : 'No camera detected'; |
| 4854 | |
| 4855 | /* Device labels are only populated after the user has granted permission for |
| 4856 | that media kind. With blank labels the picker would just list anonymous |
| 4857 | "Microphone 1 / 2", which the user can't meaningfully choose between — |
| 4858 | gate the chevron until the input has been enabled at least once. */ |
| 4859 | const micLabelled = audioInputs.some(d => d.label); |
| 4860 | const camLabelled = videoInputs.some(d => d.label); |
| 4861 | if (micPick) { |
| 4862 | micPick.disabled = !hasMic || !micLabelled; |
| 4863 | micPick.title = micPick.disabled |
| 4864 | ? 'Enable microphone first to choose a device' |
| 4865 | : 'Choose microphone'; |
| 4866 | } |
| 4867 | if (camPick) { |
| 4868 | camPick.disabled = !hasCam || !camLabelled; |
| 4869 | camPick.title = camPick.disabled |
| 4870 | ? 'Enable camera first to choose a device' |
| 4871 | : 'Choose camera'; |
| 4872 | } |
| 4873 | |
| 4874 | renderDeviceMenus(devs); |
| 4875 | } |
| 4876 | |
| 4877 | /* Rebuild the mic and camera popover lists from an enumerateDevices() snapshot. |
| 4878 | Devices without labels (no permission yet) show as "Microphone 1", etc., so |
| 4879 | the user can still see *how many* devices exist before granting permission. |
| 4880 | The "currently live" indicator is derived from App.state.micTrack/camTrack |
| 4881 | (the local capture) rather than any per-peer sender. */ |
| 4882 | function renderDeviceMenus(devs) { |
| 4883 | renderOneDeviceMenu('tb-mic-menu', 'mic', devs.filter(d => d.kind === 'audioinput'), |
| 4884 | App.state.settings.audio.deviceId, |
| 4885 | App.state.micTrack); |
| 4886 | renderOneDeviceMenu('tb-cam-menu', 'cam', devs.filter(d => d.kind === 'videoinput'), |
| 4887 | App.state.settings.video.deviceId, |
| 4888 | App.state.camTrack); |
| 4889 | } |
| 4890 | |
| 4891 | function renderOneDeviceMenu(menuId, kind, devs, savedId, liveTrack) { |
| 4892 | const menu = document.getElementById(menuId); |
| 4893 | if (!menu) return; |
| 4894 | /* Some webcams (notably HP combo cameras) expose the RGB and IR sensors as |
| 4895 | two enumerateDevices entries with the *same* deviceId. gUM can't tell |
| 4896 | them apart with {exact: deviceId}, so listing both rows would let the |
| 4897 | user click a "different" device that's actually the same one. Dedup by |
| 4898 | deviceId, keeping the first label we saw. */ |
| 4899 | const seenIds = new Set(); |
| 4900 | devs = devs.filter(d => { |
| 4901 | if (!d.deviceId) return true; /* pre-permission entries — keep them */ |
| 4902 | if (seenIds.has(d.deviceId)) return false; |
| 4903 | seenIds.add(d.deviceId); |
| 4904 | return true; |
| 4905 | }); |
| 4906 | /* "active" = the device currently producing the live stream. If we passed |
| 4907 | {exact: savedId} to gUM and it succeeded, savedId IS what's live — trust |
| 4908 | that over getSettings().deviceId, which some webcams misreport. Only |
| 4909 | fall back to getSettings() when no preference is saved. */ |
| 4910 | let activeId = ''; |
| 4911 | if (liveTrack) { |
| 4912 | activeId = savedId |
| 4913 | || (liveTrack.getSettings ? liveTrack.getSettings().deviceId : '') |
| 4914 | || ''; |
| 4915 | } |
| 4916 | const kindLabel = kind === 'mic' ? 'Microphone' : 'Camera'; |
| 4917 | const rows = []; |
| 4918 | |
| 4919 | const activeDot = '<svg class="ic" width="8" height="8" viewBox="0 0 8 8" aria-hidden="true"><circle cx="4" cy="4" r="3" fill="currentColor"/></svg>'; |
| 4920 | const sysActive = !savedId && activeId ? ` <span class="device-active">${activeDot} active</span>` : ''; |
| 4921 | rows.push(`<label class="device-row" role="menuitemradio"> |
| 4922 | <input type="radio" name="dev-${kind}" value="" ${savedId ? '' : 'checked'}> |
| 4923 | <span class="device-label">System default</span>${sysActive} |
| 4924 | </label>`); |
| 4925 | |
| 4926 | if (devs.length === 0) { |
| 4927 | rows.push(`<div class="device-empty">No ${kindLabel.toLowerCase()}s detected.</div>`); |
| 4928 | } else { |
| 4929 | devs.forEach((d, i) => { |
| 4930 | const label = d.label || `${kindLabel} ${i + 1}`; |
| 4931 | const checked = d.deviceId === savedId ? 'checked' : ''; |
| 4932 | const isActive = d.deviceId === activeId |
| 4933 | ? ` <span class="device-active">${activeDot} active</span>` |
| 4934 | : ''; |
| 4935 | rows.push(`<label class="device-row" role="menuitemradio"> |
| 4936 | <input type="radio" name="dev-${kind}" value="${escapeAttr(d.deviceId)}" ${checked}> |
| 4937 | <span class="device-label">${escapeHtml(label)}</span>${isActive} |
| 4938 | </label>`); |
| 4939 | }); |
| 4940 | if (!devs[0].label) { |
| 4941 | rows.push(`<div class="device-empty">Enable ${kindLabel.toLowerCase()} to see device names.</div>`); |
| 4942 | } |
| 4943 | } |
| 4944 | |
| 4945 | menu.innerHTML = rows.join(''); |
| 4946 | } |
| 4947 | |
| 4948 | /* Re-renders the picker lists with the current saved/active state. Used by |
| 4949 | the picker change handler so the radio + "active" marker reflect the new |
| 4950 | selection immediately, without waiting for the next devicechange event. */ |
| 4951 | function refreshDeviceMenus() { |
| 4952 | navigator.mediaDevices.enumerateDevices().then(renderDeviceMenus).catch(() => {}); |
| 4953 | } |
| 4954 | |
| 4955 | function setupDevicePickers() { |
| 4956 | setupOnePicker('mic'); |
| 4957 | setupOnePicker('cam'); |
| 4958 | |
| 4959 | /* Close any open menu on outside click or Escape. */ |
| 4960 | document.addEventListener('click', (e) => { |
| 4961 | document.querySelectorAll('.device-picker').forEach(group => { |
| 4962 | if (!group.contains(e.target)) closeMenuInGroup(group); |
| 4963 | }); |
| 4964 | }); |
| 4965 | document.addEventListener('keydown', (e) => { |
| 4966 | if (e.key === 'Escape') { |
| 4967 | document.querySelectorAll('.device-menu:not(.hidden)').forEach(m => { |
| 4968 | const chev = m.parentElement.querySelector('.device-chevron'); |
| 4969 | m.classList.add('hidden'); |
| 4970 | if (chev) chev.setAttribute('aria-expanded', 'false'); |
| 4971 | }); |
| 4972 | } |
| 4973 | }); |
| 4974 | } |
| 4975 | |
| 4976 | function closeMenuInGroup(group) { |
| 4977 | const menu = group.querySelector('.device-menu'); |
| 4978 | const chev = group.querySelector('.device-chevron'); |
| 4979 | if (menu) menu.classList.add('hidden'); |
| 4980 | if (chev) chev.setAttribute('aria-expanded', 'false'); |
| 4981 | } |
| 4982 | |
| 4983 | function setupOnePicker(kind) { |
| 4984 | const chev = document.getElementById(`tb-${kind}-pick`); |
| 4985 | const menu = document.getElementById(`tb-${kind}-menu`); |
| 4986 | if (!chev || !menu) return; |
| 4987 | |
| 4988 | chev.addEventListener('click', (e) => { |
| 4989 | e.stopPropagation(); |
| 4990 | /* Close any other open menus first. */ |
| 4991 | document.querySelectorAll('.device-picker').forEach(g => { |
| 4992 | if (!g.contains(chev)) closeMenuInGroup(g); |
| 4993 | }); |
| 4994 | const opening = menu.classList.contains('hidden'); |
| 4995 | menu.classList.toggle('hidden'); |
| 4996 | chev.setAttribute('aria-expanded', opening ? 'true' : 'false'); |
| 4997 | if (opening) { |
| 4998 | /* Re-enumerate on open so labels are fresh after a permission grant. */ |
| 4999 | refreshDeviceMenus(); |
| 5000 | } |
| 5001 | }); |
| 5002 | |
| 5003 | menu.addEventListener('change', async (e) => { |
| 5004 | const input = e.target.closest('input[type="radio"]'); |
| 5005 | if (!input) return; |
| 5006 | const settings = kind === 'mic' ? App.state.settings.audio : App.state.settings.video; |
| 5007 | const newId = input.value || ''; |
| 5008 | menu.classList.add('hidden'); |
| 5009 | chev.setAttribute('aria-expanded', 'false'); |
| 5010 | |
| 5011 | const btn = document.getElementById(`tb-${kind}`); |
| 5012 | if (!btn.classList.contains('on')) { |
| 5013 | /* Input is off — just persist the choice for the next time the user |
| 5014 | turns it on. No gUM call. */ |
| 5015 | settings.deviceId = newId; |
| 5016 | refreshDeviceMenus(); |
| 5017 | return; |
| 5018 | } |
| 5019 | /* Input is live — swap the track in place. On failure, leave the saved |
| 5020 | preference unchanged so the menu reverts to the previously-working |
| 5021 | selection on next render. */ |
| 5022 | const got = await App.media.switchInputDevice(kind, newId); |
| 5023 | if (got !== null) settings.deviceId = newId; |
| 5024 | refreshDeviceMenus(); |
| 5025 | }); |
| 5026 | } |
| 5027 | |
| 5028 | |
| 5029 | /* ------------------------------------------------------------------------- |
| 5030 | Console drawer rendering |
| 5031 | ------------------------------------------------------------------------- */ |
| 5032 | function setupConsole() { |
| 5033 | const body = document.getElementById('console-body'); |
| 5034 | const countEl = document.getElementById('console-count'); |
| 5035 | const levelSel = document.getElementById('console-level'); |
| 5036 | const filterEl = document.getElementById('console-filter'); |
| 5037 | const drawer = document.getElementById('console-drawer'); |
| 5038 | const toggle = document.getElementById('console-toggle'); |
| 5039 | |
| 5040 | const ORDER = { debug: 0, info: 1, warn: 2, error: 3 }; |
| 5041 | function shouldShow(e) { |
| 5042 | if (!e) return false; |
| 5043 | if (ORDER[e.level] < ORDER[levelSel.value]) return false; |
| 5044 | const q = filterEl.value.toLowerCase(); |
| 5045 | if (q && !(e.label.toLowerCase().includes(q) || e.args.some(a => String(a).toLowerCase().includes(q)))) return false; |
| 5046 | return true; |
| 5047 | } |
| 5048 | function fmt(args) { |
| 5049 | return args.map(a => { |
| 5050 | if (a == null) return String(a); |
| 5051 | if (typeof a === 'string') return a; |
| 5052 | try { return JSON.stringify(a); } catch (_) { return String(a); } |
| 5053 | }).join(' '); |
| 5054 | } |
| 5055 | function append(entry) { |
| 5056 | if (!entry) { body.innerHTML = ''; countEl.textContent = '0 entries'; return; } |
| 5057 | if (!shouldShow(entry)) { countEl.textContent = App.log.snapshot().length + ' entries'; return; } |
| 5058 | const div = document.createElement('div'); |
| 5059 | div.className = 'log-line ' + entry.level; |
| 5060 | const t = new Date(entry.ts); |
| 5061 | const ts = t.toTimeString().slice(0, 8) + '.' + String(t.getMilliseconds()).padStart(3, '0'); |
| 5062 | div.innerHTML = `<span class="ts">${ts}</span><span class="lvl">${entry.level}</span><span class="label">${escapeHtml(entry.label)}</span><span class="text"></span>`; |
| 5063 | div.querySelector('.text').textContent = fmt(entry.args); |
| 5064 | const wasAtBottom = body.scrollTop + body.clientHeight >= body.scrollHeight - 20; |
| 5065 | body.appendChild(div); |
| 5066 | if (wasAtBottom) body.scrollTop = body.scrollHeight; |
| 5067 | countEl.textContent = App.log.snapshot().length + ' entries'; |
| 5068 | } |
| 5069 | function rerender() { |
| 5070 | body.innerHTML = ''; |
| 5071 | App.log.snapshot().forEach(append); |
| 5072 | } |
| 5073 | |
| 5074 | App.log.subscribe(append); |
| 5075 | levelSel.addEventListener('change', rerender); |
| 5076 | filterEl.addEventListener('input', rerender); |
| 5077 | toggle.addEventListener('click', () => drawer.classList.toggle('hidden')); |
| 5078 | document.getElementById('console-close').addEventListener('click', () => drawer.classList.add('hidden')); |
| 5079 | document.getElementById('console-clear').addEventListener('click', () => App.log.clear()); |
| 5080 | document.getElementById('console-export').addEventListener('click', () => { |
| 5081 | const blob = new Blob([JSON.stringify(App.log.snapshot(), null, 2)], { type: 'application/json' }); |
| 5082 | const url = URL.createObjectURL(blob); |
| 5083 | const a = document.createElement('a'); |
| 5084 | a.href = url; |
| 5085 | a.download = 'webrtc-log-' + Date.now() + '.json'; |
| 5086 | document.body.appendChild(a); a.click(); a.remove(); |
| 5087 | URL.revokeObjectURL(url); |
| 5088 | }); |
| 5089 | document.getElementById('console-stats-toggle').addEventListener('click', () => App.stats.toggleConsoleStats()); |
| 5090 | |
| 5091 | /* Keyboard shortcut */ |
| 5092 | document.addEventListener('keydown', e => { |
| 5093 | if ((e.ctrlKey || e.metaKey) && e.key === '`') { |
| 5094 | e.preventDefault(); drawer.classList.toggle('hidden'); |
| 5095 | } |
| 5096 | }); |
| 5097 | } |
| 5098 | |
| 5099 | /* ------------------------------------------------------------------------- |
| 5100 | SDP inspector: parse an offer/answer and render it as labelled sections |
| 5101 | with one-line explanations for the common attributes. |
| 5102 | |
| 5103 | Input accepted: raw SDP (starts with "v="), the {type,sdp} JSON this tool |
| 5104 | emits, or its "b64:"-prefixed wrapped form. The renderer never uses |
| 5105 | innerHTML with user content — everything goes through textContent — so |
| 5106 | pasted SDP can't smuggle markup into the page. |
| 5107 | ------------------------------------------------------------------------- */ |
| 5108 | App.sdpInspect = (() => { |
| 5109 | /* Short explanations for the SDP attributes we render. Missing entries |
| 5110 | just render without help text. */ |
| 5111 | const ATTR_HELP = { |
| 5112 | 'group': 'Groups m= sections into one transport. "BUNDLE 0 1 2" multiplexes those mids onto a single ICE/DTLS connection.', |
| 5113 | 'msid-semantic': 'Declares the meaning of msid values (WMS = WebRTC Media Stream).', |
| 5114 | 'ice-ufrag': 'ICE username fragment — half of the STUN binding-request credentials.', |
| 5115 | 'ice-pwd': 'ICE password — the other half of the ICE credentials. Treat as a short-lived secret.', |
| 5116 | 'ice-options': 'ICE feature flags (e.g. "trickle" = candidates may arrive after the SDP).', |
| 5117 | 'fingerprint': 'DTLS certificate fingerprint. The peer authenticates the cert against this value.', |
| 5118 | 'setup': 'DTLS role: active (client), passive (server), or actpass (will negotiate during the handshake).', |
| 5119 | 'mid': 'Media identifier for this m= section; referenced by BUNDLE and by the "mid" RTP header extension.', |
| 5120 | 'extmap': 'RTP header extension: numeric id → URI describing what the extension carries.', |
| 5121 | 'rtcp-mux': 'RTP and RTCP share one UDP port. Always present in WebRTC.', |
| 5122 | 'rtcp-rsize': 'Allows reduced-size RTCP packets.', |
| 5123 | 'rtcp': 'Explicit RTCP port (legacy; ignored when rtcp-mux is set).', |
| 5124 | 'sendrecv': 'This side will both send and receive media on this m=.', |
| 5125 | 'sendonly': 'This side will only send media on this m=.', |
| 5126 | 'recvonly': 'This side will only receive media on this m=.', |
| 5127 | 'inactive': 'Negotiated but neither side will send/receive media on this m=.', |
| 5128 | 'rtpmap': 'Maps an RTP payload type to a codec/clock-rate/channels triple.', |
| 5129 | 'fmtp': 'Per-payload-type format parameters — encoder hints (e.g. opus useinbandfec=1).', |
| 5130 | 'rtcp-fb': 'RTCP feedback messages this payload type supports (nack, pli, transport-cc, …).', |
| 5131 | 'candidate': 'An ICE candidate — one possible source/destination address pair for media.', |
| 5132 | 'end-of-candidates':'No more candidates will be trickled.', |
| 5133 | 'msid': 'Binds this m= to a MediaStream id and Track id used by the JS API.', |
| 5134 | 'ssrc': 'Synchronization source ID for an RTP stream, plus metadata (cname, msid, …).', |
| 5135 | 'ssrc-group': 'Groups SSRCs (FID = RTX retransmission pair; SIM = simulcast layers).', |
| 5136 | 'rid': 'Restriction identifier for one simulcast layer.', |
| 5137 | 'simulcast': 'Declares simulcast layer ids and directions.', |
| 5138 | 'maxptime': 'Maximum packetization time (ms) the receiver will accept.', |
| 5139 | 'ptime': 'Preferred packetization time (ms).', |
| 5140 | 'extmap-allow-mixed':'Receiver accepts RTP packets that mix one-byte and two-byte header extensions in the same packet (RFC 8285).', |
| 5141 | 'rtcp': 'Explicit RTCP address/port. Legacy — ignored when rtcp-mux is in effect (RFC 3605).', |
| 5142 | 'bundle-only': 'This m= section is only usable when bundled via the BUNDLE group; port is 0 if not selected (RFC 8843).', |
| 5143 | 'sctp-port': 'SCTP port for the data channel association. WebRTC always uses 5000 (RFC 8841).', |
| 5144 | 'max-message-size': 'Maximum SCTP user message size (bytes) the receiver will accept (RFC 8841).', |
| 5145 | }; |
| 5146 | |
| 5147 | const CANDIDATE_TYPE_HELP = { |
| 5148 | host: 'Local interface address on this machine (LAN or loopback).', |
| 5149 | srflx: 'Server-reflexive: public address as seen by a STUN server (post-NAT).', |
| 5150 | prflx: 'Peer-reflexive: address discovered during connectivity checks.', |
| 5151 | relay: 'TURN relay; media flows through the TURN server.', |
| 5152 | }; |
| 5153 | |
| 5154 | /* Accept raw SDP, JSON wrappers, or b64-prefixed JSON. Throws on garbage. */ |
| 5155 | function extractSdp(text) { |
| 5156 | text = (text || '').trim(); |
| 5157 | if (!text) throw new Error('empty input'); |
| 5158 | if (text.startsWith('b64:')) { |
| 5159 | try { |
| 5160 | const bin = atob(text.slice(4)); |
| 5161 | const bytes = new Uint8Array(bin.length); |
| 5162 | for (let i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i); |
| 5163 | text = new TextDecoder().decode(bytes); |
| 5164 | } catch (e) { throw new Error('bad base64: ' + e.message); } |
| 5165 | } |
| 5166 | if (text.startsWith('{')) { |
| 5167 | let obj; |
| 5168 | try { obj = JSON.parse(text); } catch (e) { throw new Error('not valid JSON: ' + e.message); } |
| 5169 | if (!obj || typeof obj.sdp !== 'string') throw new Error('JSON has no "sdp" string field'); |
| 5170 | if (!obj.sdp.includes('v=')) throw new Error('"sdp" field is not SDP (missing v=)'); |
| 5171 | return { type: obj.type || '(unknown)', sdp: obj.sdp }; |
| 5172 | } |
| 5173 | if (/^v=/m.test(text)) return { type: '(raw)', sdp: text }; |
| 5174 | throw new Error('unrecognized input — expected SDP, JSON, or b64:…'); |
| 5175 | } |
| 5176 | |
| 5177 | /* Tokenize SDP into a session + one block per m= section. */ |
| 5178 | function parseSdp(sdp) { |
| 5179 | const session = { kind: 'session', lines: [], attrs: [], media: [] }; |
| 5180 | let cur = session; |
| 5181 | for (const raw of sdp.split(/\r?\n/)) { |
| 5182 | const line = raw.replace(/\r$/, ''); |
| 5183 | if (!line) continue; |
| 5184 | const m = line.match(/^([a-z])=(.*)$/); |
| 5185 | if (!m) continue; |
| 5186 | const key = m[1], val = m[2]; |
| 5187 | if (key === 'm') { |
| 5188 | const parts = val.split(/\s+/); |
| 5189 | const media = { |
| 5190 | kind: 'media', type: parts[0] || '?', port: parts[1] || '?', proto: parts[2] || '?', |
| 5191 | payloadTypes: parts.slice(3), lines: [], attrs: [], |
| 5192 | }; |
| 5193 | session.media.push(media); |
| 5194 | cur = media; |
| 5195 | cur.lines.push({ key, val }); |
| 5196 | continue; |
| 5197 | } |
| 5198 | cur.lines.push({ key, val }); |
| 5199 | if (key === 'a') { |
| 5200 | const colon = val.indexOf(':'); |
| 5201 | cur.attrs.push({ |
| 5202 | name: colon === -1 ? val : val.slice(0, colon), |
| 5203 | value: colon === -1 ? '' : val.slice(colon + 1), |
| 5204 | }); |
| 5205 | } |
| 5206 | } |
| 5207 | return session; |
| 5208 | } |
| 5209 | |
| 5210 | /* DOM helpers — everything textContent, no innerHTML on user input. */ |
| 5211 | function el(tag, cls, text) { |
| 5212 | const e = document.createElement(tag); |
| 5213 | if (cls) e.className = cls; |
| 5214 | if (text != null) e.textContent = text; |
| 5215 | return e; |
| 5216 | } |
| 5217 | function kv(grid, k, v, help) { |
| 5218 | grid.appendChild(el('span', 'k', k)); |
| 5219 | const vEl = el('span', 'v', v == null ? '' : String(v)); |
| 5220 | if (help) vEl.title = help; |
| 5221 | grid.appendChild(vEl); |
| 5222 | } |
| 5223 | function section(title, sub) { |
| 5224 | const wrap = el('div', 'sdp-section'); |
| 5225 | const head = el('div', 'sdp-head'); |
| 5226 | head.appendChild(el('h3', null, title)); |
| 5227 | if (sub) head.appendChild(el('span', 'sdp-sub', sub)); |
| 5228 | wrap.appendChild(head); |
| 5229 | return wrap; |
| 5230 | } |
| 5231 | function helpLine(text) { return el('p', 'sdp-help', text); } |
| 5232 | function rawBlock(label, lines) { |
| 5233 | const d = el('details', 'sdp-rawblock'); |
| 5234 | d.appendChild(el('summary', null, label)); |
| 5235 | d.appendChild(el('pre', null, lines.map(l => l.key + '=' + l.val).join('\n'))); |
| 5236 | return d; |
| 5237 | } |
| 5238 | |
| 5239 | /* Render an a=candidate:... value into a structured single-line list item. |
| 5240 | RFC 5245 layout: <foundation> <component> <transport> <priority> |
| 5241 | <addr> <port> typ <type> [raddr <addr> rport <port>] |
| 5242 | [generation N] [tcptype …] [ufrag …] */ |
| 5243 | function renderCandidate(value) { |
| 5244 | const t = value.split(/\s+/); |
| 5245 | const li = el('li'); |
| 5246 | const out = []; |
| 5247 | out.push({ text: t[2] || '?', cls: 'tag', help: 'transport (udp/tcp)' }); |
| 5248 | out.push({ text: (t[4] || '?') + ':' + (t[5] || '?'), help: 'local address & port (often obfuscated by the browser)' }); |
| 5249 | const typeIdx = t.indexOf('typ'); |
| 5250 | const type = typeIdx >= 0 ? t[typeIdx + 1] : '?'; |
| 5251 | out.push({ text: type, cls: 'badge', help: CANDIDATE_TYPE_HELP[type] || 'ICE candidate type' }); |
| 5252 | const raddrIdx = t.indexOf('raddr'); |
| 5253 | if (raddrIdx >= 0) { |
| 5254 | const rportIdx = t.indexOf('rport'); |
| 5255 | out.push({ text: 'related ' + t[raddrIdx + 1] + ':' + (rportIdx >= 0 ? t[rportIdx + 1] : '?'), |
| 5256 | cls: 'dim', help: 'related (base) address — for srflx/relay, the host address behind it' }); |
| 5257 | } |
| 5258 | out.push({ text: 'prio ' + (t[3] || '?'), cls: 'dim', help: 'priority — higher wins during pair selection' }); |
| 5259 | out.push({ text: 'foundation ' + (t[0] || '?'), cls: 'dim', |
| 5260 | help: 'foundation — candidates with the same foundation share a local interface/server pair' }); |
| 5261 | |
| 5262 | out.forEach((p, i) => { |
| 5263 | const span = el('span', p.cls || null, p.text); |
| 5264 | if (p.help) span.title = p.help; |
| 5265 | li.appendChild(span); |
| 5266 | if (i < out.length - 1) li.appendChild(document.createTextNode(' ')); |
| 5267 | }); |
| 5268 | return li; |
| 5269 | } |
| 5270 | |
| 5271 | function attrsBy(attrs, name) { return attrs.filter(a => a.name === name); } |
| 5272 | function attrFirst(attrs, name) { const a = attrs.find(x => x.name === name); return a ? a.value : null; } |
| 5273 | function directionOf(attrs) { |
| 5274 | for (const d of ['sendrecv','sendonly','recvonly','inactive']) |
| 5275 | if (attrs.some(a => a.name === d)) return d; |
| 5276 | return null; |
| 5277 | } |
| 5278 | |
| 5279 | function renderSession(parsed) { |
| 5280 | const out = document.createDocumentFragment(); |
| 5281 | |
| 5282 | /* Session-level summary */ |
| 5283 | const sec = section('Session'); |
| 5284 | const grid = el('div', 'sdp-kv'); |
| 5285 | const o = parsed.lines.find(l => l.key === 'o'); |
| 5286 | if (o) { |
| 5287 | const op = o.val.split(/\s+/); |
| 5288 | kv(grid, 'origin', op.join(' '), |
| 5289 | 'o=<username> <sess-id> <sess-version> <nettype> <addrtype> <unicast-addr>'); |
| 5290 | } |
| 5291 | const sName = parsed.lines.find(l => l.key === 's'); |
| 5292 | if (sName) kv(grid, 'name (s=)', sName.val, 'Session name. WebRTC uses "-".'); |
| 5293 | const t = parsed.lines.find(l => l.key === 't'); |
| 5294 | if (t) kv(grid, 'time (t=)', t.val, 't=<start> <stop>; "0 0" means unbounded — usual for real-time sessions.'); |
| 5295 | const c = parsed.lines.find(l => l.key === 'c'); |
| 5296 | if (c) kv(grid, 'connection (c=)', c.val, 'c=<nettype> <addrtype> <connection-address>.'); |
| 5297 | |
| 5298 | const sessionAttrs = parsed.attrs; |
| 5299 | const group = attrFirst(sessionAttrs, 'group'); |
| 5300 | if (group) kv(grid, 'group', group, ATTR_HELP['group']); |
| 5301 | const msidSem = attrFirst(sessionAttrs, 'msid-semantic'); |
| 5302 | if (msidSem) kv(grid, 'msid-semantic', msidSem, ATTR_HELP['msid-semantic']); |
| 5303 | const fp = attrFirst(sessionAttrs, 'fingerprint'); |
| 5304 | if (fp) kv(grid, 'fingerprint (session)', fp, ATTR_HELP['fingerprint']); |
| 5305 | const setup = attrFirst(sessionAttrs, 'setup'); |
| 5306 | if (setup) kv(grid, 'setup (session)', setup, ATTR_HELP['setup']); |
| 5307 | const ufrag = attrFirst(sessionAttrs, 'ice-ufrag'); |
| 5308 | if (ufrag) kv(grid, 'ice-ufrag (session)', ufrag, ATTR_HELP['ice-ufrag']); |
| 5309 | const pwd = attrFirst(sessionAttrs, 'ice-pwd'); |
| 5310 | if (pwd) kv(grid, 'ice-pwd (session)', pwd, ATTR_HELP['ice-pwd']); |
| 5311 | const iceOpts = attrFirst(sessionAttrs, 'ice-options'); |
| 5312 | if (iceOpts) kv(grid, 'ice-options', iceOpts, ATTR_HELP['ice-options']); |
| 5313 | if (sessionAttrs.some(a => a.name === 'extmap-allow-mixed')) |
| 5314 | kv(grid, 'extmap-allow-mixed', 'yes', ATTR_HELP['extmap-allow-mixed']); |
| 5315 | |
| 5316 | sec.appendChild(grid); |
| 5317 | out.appendChild(sec); |
| 5318 | |
| 5319 | /* One section per m= */ |
| 5320 | parsed.media.forEach((media, idx) => renderMedia(media, idx, sessionAttrs, out)); |
| 5321 | return out; |
| 5322 | } |
| 5323 | |
| 5324 | function renderMedia(media, idx, sessionAttrs, out) { |
| 5325 | const sub = media.proto + ' port ' + media.port + ' PTs: ' + media.payloadTypes.join(' '); |
| 5326 | const sec = section('m=' + media.type + ' [' + idx + ']', sub); |
| 5327 | |
| 5328 | const grid = el('div', 'sdp-kv'); |
| 5329 | const mid = attrFirst(media.attrs, 'mid'); |
| 5330 | if (mid) kv(grid, 'mid', mid, ATTR_HELP['mid']); |
| 5331 | const dir = directionOf(media.attrs); |
| 5332 | if (dir) kv(grid, 'direction', dir, ATTR_HELP[dir]); |
| 5333 | const msid = attrFirst(media.attrs, 'msid'); |
| 5334 | if (msid) kv(grid, 'msid', msid, ATTR_HELP['msid']); |
| 5335 | if (media.attrs.some(a => a.name === 'rtcp-mux')) kv(grid, 'rtcp-mux', 'yes', ATTR_HELP['rtcp-mux']); |
| 5336 | if (media.attrs.some(a => a.name === 'rtcp-rsize')) kv(grid, 'rtcp-rsize', 'yes', ATTR_HELP['rtcp-rsize']); |
| 5337 | if (media.attrs.some(a => a.name === 'extmap-allow-mixed')) |
| 5338 | kv(grid, 'extmap-allow-mixed', 'yes', ATTR_HELP['extmap-allow-mixed']); |
| 5339 | if (media.attrs.some(a => a.name === 'bundle-only')) |
| 5340 | kv(grid, 'bundle-only', 'yes', ATTR_HELP['bundle-only']); |
| 5341 | const rtcpAddr = attrFirst(media.attrs, 'rtcp'); |
| 5342 | if (rtcpAddr) kv(grid, 'rtcp (legacy)', rtcpAddr, ATTR_HELP['rtcp']); |
| 5343 | const sctpPort = attrFirst(media.attrs, 'sctp-port'); |
| 5344 | if (sctpPort) kv(grid, 'sctp-port', sctpPort, ATTR_HELP['sctp-port']); |
| 5345 | const maxMsg = attrFirst(media.attrs, 'max-message-size'); |
| 5346 | if (maxMsg) kv(grid, 'max-message-size', maxMsg + ' bytes', ATTR_HELP['max-message-size']); |
| 5347 | const mFp = attrFirst(media.attrs, 'fingerprint'); |
| 5348 | if (mFp) kv(grid, 'fingerprint', mFp, ATTR_HELP['fingerprint']); |
| 5349 | const mSetup = attrFirst(media.attrs, 'setup'); |
| 5350 | if (mSetup) kv(grid, 'setup', mSetup, ATTR_HELP['setup']); |
| 5351 | const mUfrag = attrFirst(media.attrs, 'ice-ufrag'); |
| 5352 | if (mUfrag) kv(grid, 'ice-ufrag', mUfrag, ATTR_HELP['ice-ufrag']); |
| 5353 | const mPwd = attrFirst(media.attrs, 'ice-pwd'); |
| 5354 | if (mPwd) kv(grid, 'ice-pwd', mPwd, ATTR_HELP['ice-pwd']); |
| 5355 | sec.appendChild(grid); |
| 5356 | |
| 5357 | /* Codecs */ |
| 5358 | const rtpmaps = attrsBy(media.attrs, 'rtpmap'); |
| 5359 | const fmtps = attrsBy(media.attrs, 'fmtp'); |
| 5360 | const fbs = attrsBy(media.attrs, 'rtcp-fb'); |
| 5361 | if (rtpmaps.length) { |
| 5362 | sec.appendChild(el('h3', null, 'Codecs')); |
| 5363 | sec.appendChild(helpLine('Each payload type (PT) maps to a codec definition. fmtp/rtcp-fb lines attach to a PT by id.')); |
| 5364 | const list = el('ul', 'sdp-list'); |
| 5365 | rtpmaps.forEach(r => { |
| 5366 | const m = r.value.match(/^(\d+)\s+(.+)$/); |
| 5367 | if (!m) return; |
| 5368 | const pt = m[1], spec = m[2]; |
| 5369 | const li = el('li'); |
| 5370 | const tag = el('span', 'tag', pt); |
| 5371 | tag.title = 'RTP payload type number'; |
| 5372 | li.appendChild(tag); |
| 5373 | li.appendChild(document.createTextNode(spec)); |
| 5374 | const fmtp = fmtps.find(f => f.value.startsWith(pt + ' ')); |
| 5375 | if (fmtp) { |
| 5376 | const b = el('span', 'badge', 'fmtp: ' + fmtp.value.slice(pt.length + 1)); |
| 5377 | b.title = ATTR_HELP['fmtp']; |
| 5378 | li.appendChild(document.createTextNode(' ')); |
| 5379 | li.appendChild(b); |
| 5380 | } |
| 5381 | const ptFbs = fbs.filter(f => f.value.startsWith(pt + ' ') || f.value.startsWith('* ')); |
| 5382 | if (ptFbs.length) { |
| 5383 | const fbText = ptFbs.map(f => f.value.split(/\s+/).slice(1).join(' ')).join(' / '); |
| 5384 | const b = el('span', 'dim', 'fb: ' + fbText); |
| 5385 | b.title = ATTR_HELP['rtcp-fb']; |
| 5386 | li.appendChild(document.createTextNode(' ')); |
| 5387 | li.appendChild(b); |
| 5388 | } |
| 5389 | list.appendChild(li); |
| 5390 | }); |
| 5391 | sec.appendChild(list); |
| 5392 | } |
| 5393 | |
| 5394 | /* RTP header extensions */ |
| 5395 | const extmaps = attrsBy(media.attrs, 'extmap'); |
| 5396 | if (extmaps.length) { |
| 5397 | sec.appendChild(el('h3', null, 'RTP header extensions')); |
| 5398 | sec.appendChild(helpLine(ATTR_HELP['extmap'])); |
| 5399 | const list = el('ul', 'sdp-list'); |
| 5400 | extmaps.forEach(e => { |
| 5401 | const m = e.value.match(/^(\d+)(?:\/(\S+))?\s+(.+)$/); |
| 5402 | const li = el('li'); |
| 5403 | if (m) { |
| 5404 | li.appendChild(el('span', 'tag', m[1])); |
| 5405 | if (m[2]) { const dir = el('span', 'badge', m[2]); dir.title = 'extension direction'; li.appendChild(dir); } |
| 5406 | li.appendChild(document.createTextNode(' ' + m[3])); |
| 5407 | } else li.textContent = e.value; |
| 5408 | list.appendChild(li); |
| 5409 | }); |
| 5410 | sec.appendChild(list); |
| 5411 | } |
| 5412 | |
| 5413 | /* ICE candidates */ |
| 5414 | const cands = attrsBy(media.attrs, 'candidate'); |
| 5415 | if (cands.length) { |
| 5416 | sec.appendChild(el('h3', null, 'ICE candidates (' + cands.length + ')')); |
| 5417 | sec.appendChild(helpLine(ATTR_HELP['candidate'])); |
| 5418 | const list = el('ul', 'sdp-list'); |
| 5419 | cands.forEach(c => list.appendChild(renderCandidate(c.value))); |
| 5420 | sec.appendChild(list); |
| 5421 | } |
| 5422 | if (media.attrs.some(a => a.name === 'end-of-candidates')) |
| 5423 | sec.appendChild(helpLine('end-of-candidates present: ' + ATTR_HELP['end-of-candidates'])); |
| 5424 | |
| 5425 | /* SSRCs */ |
| 5426 | const ssrcs = attrsBy(media.attrs, 'ssrc'); |
| 5427 | const ssrcGroups = attrsBy(media.attrs, 'ssrc-group'); |
| 5428 | if (ssrcs.length || ssrcGroups.length) { |
| 5429 | sec.appendChild(el('h3', null, 'SSRCs')); |
| 5430 | if (ssrcGroups.length) { |
| 5431 | const gl = el('ul', 'sdp-list'); |
| 5432 | ssrcGroups.forEach(g => { |
| 5433 | const li = el('li'); |
| 5434 | li.appendChild(el('span', 'badge', 'group')); |
| 5435 | li.appendChild(document.createTextNode(' ' + g.value)); |
| 5436 | li.title = ATTR_HELP['ssrc-group']; |
| 5437 | gl.appendChild(li); |
| 5438 | }); |
| 5439 | sec.appendChild(gl); |
| 5440 | } |
| 5441 | const byId = new Map(); |
| 5442 | ssrcs.forEach(s => { |
| 5443 | const m = s.value.match(/^(\d+)\s+(\S+?)(?::(.*))?$/); |
| 5444 | if (!m) return; |
| 5445 | const id = m[1], attr = m[2], val = m[3] || ''; |
| 5446 | if (!byId.has(id)) byId.set(id, []); |
| 5447 | byId.get(id).push(attr + (val ? '=' + val : '')); |
| 5448 | }); |
| 5449 | const list = el('ul', 'sdp-list'); |
| 5450 | byId.forEach((props, id) => { |
| 5451 | const li = el('li'); |
| 5452 | li.appendChild(el('span', 'tag', id)); |
| 5453 | li.appendChild(document.createTextNode(props.join(' '))); |
| 5454 | li.title = ATTR_HELP['ssrc']; |
| 5455 | list.appendChild(li); |
| 5456 | }); |
| 5457 | sec.appendChild(list); |
| 5458 | } |
| 5459 | |
| 5460 | /* Simulcast / rid */ |
| 5461 | const rids = attrsBy(media.attrs, 'rid'); |
| 5462 | const sim = attrFirst(media.attrs, 'simulcast'); |
| 5463 | if (rids.length || sim) { |
| 5464 | sec.appendChild(el('h3', null, 'Simulcast')); |
| 5465 | sec.appendChild(helpLine(ATTR_HELP['simulcast'])); |
| 5466 | if (sim) sec.appendChild(el('p', 'sdp-help', 'simulcast: ' + sim)); |
| 5467 | if (rids.length) { |
| 5468 | const list = el('ul', 'sdp-list'); |
| 5469 | rids.forEach(r => { const li = el('li'); li.textContent = r.value; li.title = ATTR_HELP['rid']; list.appendChild(li); }); |
| 5470 | sec.appendChild(list); |
| 5471 | } |
| 5472 | } |
| 5473 | |
| 5474 | /* Anything we didn't classify — show raw for completeness. */ |
| 5475 | const handled = new Set([ |
| 5476 | 'mid','msid','rtcp-mux','rtcp-rsize','fingerprint','setup','ice-ufrag','ice-pwd', |
| 5477 | 'sendrecv','sendonly','recvonly','inactive','rtpmap','fmtp','rtcp-fb','candidate', |
| 5478 | 'end-of-candidates','ssrc','ssrc-group','rid','simulcast','extmap', |
| 5479 | 'extmap-allow-mixed','bundle-only','rtcp','sctp-port','max-message-size', |
| 5480 | ]); |
| 5481 | const other = media.attrs.filter(a => !handled.has(a.name)); |
| 5482 | if (other.length) { |
| 5483 | sec.appendChild(rawBlock('Other attributes (' + other.length + ')', |
| 5484 | other.map(a => ({ key: 'a', val: a.name + (a.value ? ':' + a.value : '') })))); |
| 5485 | } |
| 5486 | sec.appendChild(rawBlock('Raw lines for this m= (' + media.lines.length + ')', media.lines)); |
| 5487 | out.appendChild(sec); |
| 5488 | } |
| 5489 | |
| 5490 | function run(input, container, statusEl) { |
| 5491 | container.replaceChildren(); |
| 5492 | try { |
| 5493 | const { type, sdp } = extractSdp(input); |
| 5494 | const parsed = parseSdp(sdp); |
| 5495 | const header = el('div', 'sdp-section'); |
| 5496 | const head = el('div', 'sdp-head'); |
| 5497 | head.appendChild(el('h3', null, 'Detected: ' + type)); |
| 5498 | head.appendChild(el('span', 'sdp-sub', |
| 5499 | parsed.media.length + ' m= section(s) · ' + sdp.split(/\r?\n/).length + ' lines')); |
| 5500 | header.appendChild(head); |
| 5501 | container.appendChild(header); |
| 5502 | container.appendChild(renderSession(parsed)); |
| 5503 | statusEl.textContent = 'parsed ' + parsed.media.length + ' section(s)'; |
| 5504 | statusEl.className = 'pill ok'; |
| 5505 | } catch (e) { |
| 5506 | statusEl.textContent = e.message; |
| 5507 | statusEl.className = 'pill err'; |
| 5508 | } |
| 5509 | } |
| 5510 | |
| 5511 | return { run }; |
| 5512 | })(); |
| 5513 | |
| 5514 | /* ------------------------------------------------------------------------- |
| 5515 | Wire up everything on DOMContentLoaded |
| 5516 | ------------------------------------------------------------------------- */ |
| 5517 | function wire() { |
| 5518 | window.addEventListener('popstate', onPopstate); |
| 5519 | resolveInitialView(); |
| 5520 | |
| 5521 | /* Welcome */ |
| 5522 | const usernameInput = document.getElementById('welcome-username'); |
| 5523 | if (usernameInput) { |
| 5524 | usernameInput.value = App.state.username === 'Anonymous' ? '' : App.state.username; |
| 5525 | usernameInput.placeholder = 'Anonymous'; |
| 5526 | } |
| 5527 | document.getElementById('welcome-start').addEventListener('click', () => { |
| 5528 | const raw = (usernameInput?.value || '').trim().slice(0, 64); |
| 5529 | App.state.username = raw || 'Anonymous'; |
| 5530 | if (raw) saveUsername(raw); |
| 5531 | /* No peers yet — straight to the call view with the empty-state banner. */ |
| 5532 | App.state.bannerDismissed = false; |
| 5533 | goToCall(); |
| 5534 | App.banner.refresh(); |
| 5535 | }); |
| 5536 | document.getElementById('welcome-sdp-inspect').addEventListener('click', () => { |
| 5537 | showView('view-sdp-inspect'); |
| 5538 | }); |
| 5539 | |
| 5540 | /* Add Participant dialog: each button picks a role and routes through the |
| 5541 | existing configure → exchange flow, which knows how to attach the result |
| 5542 | to a fresh PeerCtx. */ |
| 5543 | const addDlg = document.getElementById('add-peer-dialog'); |
| 5544 | function openAddDialog() { |
| 5545 | if (!addDlg || typeof addDlg.showModal !== 'function' || addDlg.open) return; |
| 5546 | try { addDlg.showModal(); } catch (_) {} |
| 5547 | } |
| 5548 | document.getElementById('tb-add-peer').addEventListener('click', openAddDialog); |
| 5549 | document.getElementById('call-banner-add').addEventListener('click', openAddDialog); |
| 5550 | document.getElementById('add-peer-cancel').addEventListener('click', () => { |
| 5551 | if (addDlg && addDlg.open) addDlg.close(); |
| 5552 | }); |
| 5553 | addDlg.querySelectorAll('.role-picker button[data-role]').forEach(b => { |
| 5554 | b.addEventListener('click', () => { |
| 5555 | addDlg.close(); |
| 5556 | pickRoleForAdd(b.dataset.role); |
| 5557 | }); |
| 5558 | }); |
| 5559 | |
| 5560 | /* SDP inspector */ |
| 5561 | const sdpIn = document.getElementById('sdp-in'); |
| 5562 | const sdpOut = document.getElementById('sdp-inspect-out'); |
| 5563 | const sdpStatus = document.getElementById('sdp-inspect-status'); |
| 5564 | document.getElementById('sdp-inspect-go').addEventListener('click', |
| 5565 | () => App.sdpInspect.run(sdpIn.value, sdpOut, sdpStatus)); |
| 5566 | document.getElementById('sdp-inspect-clear').addEventListener('click', () => { |
| 5567 | sdpIn.value = ''; sdpOut.replaceChildren(); sdpStatus.textContent = ''; sdpStatus.className = 'pill'; |
| 5568 | }); |
| 5569 | document.getElementById('sdp-inspect-back').addEventListener('click', () => showView('view-welcome')); |
| 5570 | const sdpFile = document.getElementById('sdp-inspect-file'); |
| 5571 | document.getElementById('sdp-inspect-upload').addEventListener('click', () => sdpFile.click()); |
| 5572 | sdpFile.addEventListener('change', async () => { |
| 5573 | const f = sdpFile.files && sdpFile.files[0]; |
| 5574 | if (!f) return; |
| 5575 | try { sdpIn.value = await f.text(); App.sdpInspect.run(sdpIn.value, sdpOut, sdpStatus); } |
| 5576 | catch (e) { sdpStatus.textContent = 'read failed: ' + e.message; sdpStatus.className = 'pill err'; } |
| 5577 | finally { sdpFile.value = ''; } |
| 5578 | }); |
| 5579 | |
| 5580 | /* Theme */ |
| 5581 | document.getElementById('theme-toggle').addEventListener('click', () => App.theme.toggle()); |
| 5582 | |
| 5583 | /* Step dialog: Cancel and Esc both invoke the registered cancel handler. |
| 5584 | Listen on 'cancel' (fired by Esc) and 'close' as a belt-and-suspenders. */ |
| 5585 | document.getElementById('step-dialog-cancel').addEventListener('click', () => { |
| 5586 | App.progress.triggerCancel(); |
| 5587 | }); |
| 5588 | document.getElementById('step-dialog').addEventListener('cancel', e => { |
| 5589 | /* Don't let the dialog close before we run the cancel handler — the |
| 5590 | handler itself calls dlg.close() through App.progress.hideModal(). */ |
| 5591 | e.preventDefault(); |
| 5592 | App.progress.triggerCancel(); |
| 5593 | }); |
| 5594 | |
| 5595 | /* Best-effort hangup notification when the tab is closing or backgrounded |
| 5596 | to bfcache. Use pagehide (more reliable than beforeunload, especially |
| 5597 | on mobile) and broadcast to every connected peer. */ |
| 5598 | window.addEventListener('pagehide', () => { |
| 5599 | if (App.chat && App.chat.sendByeAll) App.chat.sendByeAll(); |
| 5600 | }); |
| 5601 | |
| 5602 | /* Configure */ |
| 5603 | document.getElementById('ice-add').addEventListener('click', () => { |
| 5604 | App.state.settings.iceServers.push({ urls: '' }); |
| 5605 | renderIceRows(); |
| 5606 | }); |
| 5607 | document.getElementById('ice-clear').addEventListener('click', () => { |
| 5608 | App.state.settings.iceServers = []; |
| 5609 | renderIceRows(); |
| 5610 | }); |
| 5611 | document.getElementById('ice-reset').addEventListener('click', () => { |
| 5612 | App.state.settings.iceServers = [{ urls: 'stun:stun.l.google.com:19302' }]; |
| 5613 | renderIceRows(); |
| 5614 | }); |
| 5615 | document.getElementById('ice-toggle-json').addEventListener('click', () => { |
| 5616 | const w = document.getElementById('ice-json-wrap'); |
| 5617 | document.getElementById('ice-json').value = JSON.stringify(App.state.settings.iceServers, null, 2); |
| 5618 | w.classList.toggle('hidden'); |
| 5619 | }); |
| 5620 | document.getElementById('ice-warmup').addEventListener('click', async () => { |
| 5621 | const status = document.getElementById('ice-warmup-status'); |
| 5622 | const btn = document.getElementById('ice-warmup'); |
| 5623 | if (App.state.iceWarmupStream) { |
| 5624 | App.state.iceWarmupStream.getTracks().forEach(t => t.stop()); |
| 5625 | App.state.iceWarmupStream = null; |
| 5626 | status.textContent = 'off'; status.className = 'pill'; |
| 5627 | btn.textContent = 'Enable LAN connectivity'; |
| 5628 | App.log.info('ice', 'LAN warmup stream stopped'); |
| 5629 | return; |
| 5630 | } |
| 5631 | if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) { |
| 5632 | status.textContent = 'unavailable (needs HTTPS)'; status.className = 'pill err'; |
| 5633 | return; |
| 5634 | } |
| 5635 | btn.disabled = true; |
| 5636 | status.textContent = 'requesting…'; status.className = 'pill warn'; |
| 5637 | try { |
| 5638 | const stream = await navigator.mediaDevices.getUserMedia({ audio: true }); |
| 5639 | /* Mute the track but keep the stream alive — Firefox exposes LAN ICE |
| 5640 | candidates only while a gUM stream is in use. Stopping the track would |
| 5641 | revert to restricted candidates. */ |
| 5642 | stream.getAudioTracks().forEach(t => t.enabled = false); |
| 5643 | App.state.iceWarmupStream = stream; |
| 5644 | status.textContent = 'on (mic in use, muted)'; status.className = 'pill ok'; |
| 5645 | btn.textContent = 'Disable LAN connectivity'; |
| 5646 | App.log.info('ice', 'LAN warmup stream active; LAN candidates unlocked'); |
| 5647 | } catch (e) { |
| 5648 | status.textContent = 'denied: ' + e.message; status.className = 'pill err'; |
| 5649 | App.log.warn('ice', 'LAN warmup denied', e.message); |
| 5650 | } finally { |
| 5651 | btn.disabled = false; |
| 5652 | } |
| 5653 | }); |
| 5654 | document.getElementById('ice-json-apply').addEventListener('click', () => { |
| 5655 | try { |
| 5656 | const v = JSON.parse(document.getElementById('ice-json').value); |
| 5657 | if (!Array.isArray(v)) throw new Error('expected an array'); |
| 5658 | App.state.settings.iceServers = v; |
| 5659 | renderIceRows(); |
| 5660 | App.log.info('ice', 'applied JSON config', v.length, 'servers'); |
| 5661 | } catch (e) { App.log.error('ice', 'bad JSON', e.message); alert('Bad JSON: ' + e.message); } |
| 5662 | }); |
| 5663 | /* Signaling mode toggle */ |
| 5664 | document.getElementById('sig-mode-manual').addEventListener('click', () => { |
| 5665 | applySignalingMode('manual'); saveSignaling(); |
| 5666 | }); |
| 5667 | document.getElementById('sig-mode-auto').addEventListener('click', () => { |
| 5668 | applySignalingMode('auto'); saveSignaling(); |
| 5669 | }); |
| 5670 | document.getElementById('sig-room-gen').addEventListener('click', () => { |
| 5671 | document.getElementById('sig-room-code').value = randomRoomCode(); |
| 5672 | }); |
| 5673 | document.getElementById('sig-check').addEventListener('click', async () => { |
| 5674 | const btn = document.getElementById('sig-check'); |
| 5675 | const status = document.getElementById('sig-check-status'); |
| 5676 | const url = (document.getElementById('sig-server-url').value || '').trim().replace(/\/+$/, ''); |
| 5677 | status.classList.remove('hidden'); |
| 5678 | if (!url) { status.textContent = 'enter a URL first'; status.className = 'pill err'; return; } |
| 5679 | btn.disabled = true; |
| 5680 | status.textContent = 'checking…'; status.className = 'pill warn'; |
| 5681 | /* Independent abort from the room-handshake one so cancelling Check doesn't |
| 5682 | affect anything else. 5 s is plenty for a healthy server. */ |
| 5683 | const ac = new AbortController(); |
| 5684 | const timer = setTimeout(() => ac.abort(), 5000); |
| 5685 | const t0 = performance.now(); |
| 5686 | try { |
| 5687 | const r = await fetch(url + '/health', { signal: ac.signal, cache: 'no-store' }); |
| 5688 | const ms = Math.round(performance.now() - t0); |
| 5689 | if (r.ok) { status.textContent = 'reachable (' + r.status + ', ' + ms + ' ms)'; status.className = 'pill ok'; } |
| 5690 | else { status.textContent = 'HTTP ' + r.status; status.className = 'pill err'; } |
| 5691 | } catch (e) { |
| 5692 | status.textContent = ac.signal.aborted ? 'timed out (5 s)' : 'unreachable: ' + e.message; |
| 5693 | status.className = 'pill err'; |
| 5694 | } finally { |
| 5695 | clearTimeout(timer); |
| 5696 | btn.disabled = false; |
| 5697 | } |
| 5698 | }); |
| 5699 | document.getElementById('sig-room-code').addEventListener('input', e => { |
| 5700 | /* Server validates the same character class — keep the input clean so the |
| 5701 | user notices invalid keystrokes immediately rather than at request time. */ |
| 5702 | e.target.value = e.target.value.toLowerCase().replace(/[^a-z0-9_-]/g, '').slice(0, 15); |
| 5703 | }); |
| 5704 | |
| 5705 | document.getElementById('cfg-back').addEventListener('click', () => { |
| 5706 | /* Cfg-back during Add: drop the pending peer (no live commit yet) and |
| 5707 | return to the call view (or welcome, if no call started yet). */ |
| 5708 | cancelSetup(); |
| 5709 | App.state.nextAddRole = null; |
| 5710 | updateRoleBadge(); |
| 5711 | closeConfigureDialog(); |
| 5712 | if (App.state.peers.size || currentView() === 'view-call') goToCall(); |
| 5713 | else showView('view-welcome'); |
| 5714 | }); |
| 5715 | /* Also handle native dialog close (Esc / backdrop). */ |
| 5716 | document.getElementById('view-configure').addEventListener('close', () => { |
| 5717 | /* Only treat this as a cancellation when nothing is mid-handshake. */ |
| 5718 | if (!App.state.pendingPeer) { |
| 5719 | App.state.nextAddRole = null; |
| 5720 | updateRoleBadge(); |
| 5721 | } |
| 5722 | }); |
| 5723 | /* Esc on the exchange dialog cancels the pending peer (a half-finished |
| 5724 | handshake is unusable). */ |
| 5725 | document.getElementById('view-exchange').addEventListener('close', () => { |
| 5726 | if (App.state.pendingPeer) { |
| 5727 | cancelSetup(); |
| 5728 | App.state.nextAddRole = null; |
| 5729 | updateRoleBadge(); |
| 5730 | } |
| 5731 | }); |
| 5732 | document.getElementById('cfg-continue').addEventListener('click', async () => { |
| 5733 | readConfigInputs(); |
| 5734 | saveIce(); |
| 5735 | const role = App.state.nextAddRole; |
| 5736 | if (!role) { alert('No role chosen — open Add participant.'); return; } |
| 5737 | const auto = App.state.settings.signaling.mode === 'auto' && role !== 'loopback'; |
| 5738 | try { |
| 5739 | /* Close the dialog before the start* calls so the exchange view (or |
| 5740 | progress modal) isn't rendered underneath the configure backdrop. |
| 5741 | The dialog's `close` handler clears nextAddRole when no pendingPeer |
| 5742 | exists, so when we re-open after a validation error we must restore |
| 5743 | the role before showing the dialog again. */ |
| 5744 | closeConfigureDialog(); |
| 5745 | function reopenWithRole() { |
| 5746 | App.state.nextAddRole = role; |
| 5747 | updateRoleBadge(); |
| 5748 | openConfigureDialog(); |
| 5749 | } |
| 5750 | if (auto) { |
| 5751 | const code = (document.getElementById('sig-room-code').value || '').trim(); |
| 5752 | if (!code) { alert('Room code is required for auto mode.'); reopenWithRole(); return; } |
| 5753 | if (!App.state.settings.signaling.serverUrl) { alert('Server URL is required for auto mode.'); reopenWithRole(); return; } |
| 5754 | if (role === 'initiator') await startInitiatorAuto(code); |
| 5755 | else if (role === 'joiner') await startJoinerAuto(code); |
| 5756 | } else { |
| 5757 | if (role === 'initiator') await startInitiator(); |
| 5758 | else if (role === 'joiner') await startJoiner(); |
| 5759 | else if (role === 'loopback') await startLoopback(); |
| 5760 | } |
| 5761 | App.state.nextAddRole = null; |
| 5762 | updateRoleBadge(); |
| 5763 | } catch (e) { |
| 5764 | App.progress.hide(); |
| 5765 | if (App.state.userCancelled) { App.state.userCancelled = false; return; } |
| 5766 | App.log.error('setup', 'failed', e.message); |
| 5767 | alert('Setup failed: ' + e.message); |
| 5768 | } |
| 5769 | }); |
| 5770 | |
| 5771 | document.getElementById('exch-cancel').addEventListener('click', () => { |
| 5772 | cancelSetup(); |
| 5773 | App.state.nextAddRole = null; |
| 5774 | updateRoleBadge(); |
| 5775 | closeExchangeDialog(); |
| 5776 | if (App.state.peers.size || currentView() === 'view-call') goToCall(); |
| 5777 | else showView('view-welcome'); |
| 5778 | }); |
| 5779 | |
| 5780 | /* Disable a button until its async handler resolves, so double-clicks |
| 5781 | during gUM/gDM don't interleave. Used for both the Apply buttons in the |
| 5782 | settings panel and the main toolbar Mic/Cam/Screen toggles. */ |
| 5783 | function withReentryGuard(btnId, fn) { |
| 5784 | const btn = document.getElementById(btnId); |
| 5785 | btn.addEventListener('click', async () => { |
| 5786 | if (btn.disabled) return; |
| 5787 | btn.disabled = true; |
| 5788 | try { await fn(); } |
| 5789 | catch (e) { App.log.error('media', 'action failed', e.message); } |
| 5790 | finally { btn.disabled = false; } |
| 5791 | }); |
| 5792 | } |
| 5793 | |
| 5794 | /* Call: toolbar — mic/cam lazily call getUserMedia on first enable. */ |
| 5795 | withReentryGuard('tb-mic', async () => { |
| 5796 | const btn = document.getElementById('tb-mic'); |
| 5797 | await App.media.setMic(!btn.classList.contains('on')); |
| 5798 | }); |
| 5799 | withReentryGuard('tb-cam', async () => { |
| 5800 | const btn = document.getElementById('tb-cam'); |
| 5801 | await App.media.setCam(!btn.classList.contains('on')); |
| 5802 | }); |
| 5803 | withReentryGuard('tb-screen', async () => { |
| 5804 | if (App.state.screenStream) await App.media.stopScreenshare(); |
| 5805 | else { |
| 5806 | try { await App.media.startScreenshare(); } |
| 5807 | catch (e) { App.log.error('media', 'screenshare', e.message); App.chat.appendSystem?.('Screen share failed: ' + e.message); } |
| 5808 | } |
| 5809 | }); |
| 5810 | document.getElementById('tb-hangup').addEventListener('click', hangup); |
| 5811 | |
| 5812 | /* Local tile screen-share fullscreen toggle. Remote tiles wire their own |
| 5813 | click handler inside App.tiles.add(). */ |
| 5814 | document.getElementById('tile-local').addEventListener('click', e => { |
| 5815 | const tile = e.currentTarget; |
| 5816 | if (!tile.classList.contains('screen')) return; |
| 5817 | if (e.target.closest('.pip')) return; |
| 5818 | const video = tile.querySelector(':scope > .vid-main'); |
| 5819 | if (!video) return; |
| 5820 | if (document.fullscreenElement) { |
| 5821 | (document.exitFullscreen?.() || document.webkitExitFullscreen?.() || Promise.resolve()) |
| 5822 | .catch?.(err => App.log.warn('ui', 'exit fullscreen failed', err.message)); |
| 5823 | } else { |
| 5824 | (video.requestFullscreen?.() || video.webkitRequestFullscreen?.() || Promise.resolve()) |
| 5825 | .catch?.(err => App.log.warn('ui', 'fullscreen failed', err.message)); |
| 5826 | } |
| 5827 | }); |
| 5828 | |
| 5829 | /* Files: clear-all */ |
| 5830 | document.getElementById('files-out-clear').addEventListener('click', () => App.files.clearAll('out')); |
| 5831 | document.getElementById('files-in-clear').addEventListener('click', () => App.files.clearAll('in')); |
| 5832 | |
| 5833 | /* Call: sidebar tabs */ |
| 5834 | document.querySelectorAll('.tabs button').forEach(b => { |
| 5835 | b.addEventListener('click', () => { |
| 5836 | document.querySelectorAll('.tabs button').forEach(x => x.classList.remove('active')); |
| 5837 | document.querySelectorAll('.tab-pane').forEach(x => x.classList.remove('active')); |
| 5838 | b.classList.add('active'); |
| 5839 | document.querySelector(`.tab-pane[data-pane="${b.dataset.tab}"]`).classList.add('active'); |
| 5840 | }); |
| 5841 | }); |
| 5842 | |
| 5843 | /* Chat */ |
| 5844 | const chatInput = document.getElementById('chat-text'); |
| 5845 | const chatSend = document.getElementById('chat-send'); |
| 5846 | const chatCounter = document.getElementById('chat-counter'); |
| 5847 | const CHAT_MAX = App.chat.MAX_TEXT; |
| 5848 | function updateChatCounter() { |
| 5849 | const bytes = App.chat.utf8Length(chatInput.value); |
| 5850 | const totalOpen = peersWithOpenChat().length; |
| 5851 | const selected = App.ui.selectedChatPeers ? App.ui.selectedChatPeers().length : totalOpen; |
| 5852 | let suffix = ''; |
| 5853 | if (!totalOpen) suffix = ' · no connected peers'; |
| 5854 | else if (!selected) suffix = ' · no recipients selected'; |
| 5855 | else if (selected < totalOpen) suffix = ' · → ' + selected + '/' + totalOpen + ' peers'; |
| 5856 | chatCounter.textContent = bytes + ' / ' + CHAT_MAX + ' B' + suffix; |
| 5857 | const over = bytes > CHAT_MAX; |
| 5858 | chatCounter.classList.toggle('over', over); |
| 5859 | chatInput.disabled = !totalOpen; |
| 5860 | chatSend.disabled = over || bytes === 0 || !selected; |
| 5861 | } |
| 5862 | App.ui.updateChatGate = updateChatCounter; |
| 5863 | chatSend.addEventListener('click', sendChat); |
| 5864 | chatInput.addEventListener('input', updateChatCounter); |
| 5865 | chatInput.addEventListener('keydown', e => { |
| 5866 | if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); sendChat(); } |
| 5867 | }); |
| 5868 | updateChatCounter(); |
| 5869 | function sendChat() { |
| 5870 | const t = chatInput.value.trim(); |
| 5871 | if (!t) return; |
| 5872 | if (App.chat.utf8Length(t) > CHAT_MAX) return; |
| 5873 | const peers = App.ui.selectedChatPeers(); |
| 5874 | if (!peers.length) return; |
| 5875 | App.chat.send(t, { peers }); |
| 5876 | chatInput.value = ''; |
| 5877 | updateChatCounter(); |
| 5878 | } |
| 5879 | |
| 5880 | /* Files */ |
| 5881 | (() => { |
| 5882 | const n = App.files.MAX_FILE; |
| 5883 | let txt; |
| 5884 | if (n >= 1024 ** 3) txt = (n / 1024 ** 3) + ' GB'; |
| 5885 | else if (n >= 1024 ** 2) txt = (n / 1024 ** 2) + ' MB'; |
| 5886 | else txt = (n / 1024) + ' KB'; |
| 5887 | document.getElementById('files-max').textContent = txt; |
| 5888 | })(); |
| 5889 | const drop = document.getElementById('files-drop'); |
| 5890 | drop.addEventListener('dragover', e => { e.preventDefault(); drop.classList.add('over'); }); |
| 5891 | drop.addEventListener('dragleave', () => drop.classList.remove('over')); |
| 5892 | drop.addEventListener('drop', e => { |
| 5893 | e.preventDefault(); drop.classList.remove('over'); |
| 5894 | const f = e.dataTransfer.files[0]; |
| 5895 | if (!f) return; |
| 5896 | const peers = App.ui.selectedFilesPeers(); |
| 5897 | if (!peers.length) return; |
| 5898 | App.files.sendFile(f, { peers }); |
| 5899 | }); |
| 5900 | document.getElementById('files-pick').addEventListener('click', e => { |
| 5901 | e.preventDefault(); |
| 5902 | document.getElementById('files-input').click(); |
| 5903 | }); |
| 5904 | document.getElementById('files-input').addEventListener('change', e => { |
| 5905 | const f = e.target.files[0]; |
| 5906 | if (f) { |
| 5907 | const peers = App.ui.selectedFilesPeers(); |
| 5908 | if (peers.length) App.files.sendFile(f, { peers }); |
| 5909 | } |
| 5910 | e.target.value = ''; |
| 5911 | }); |
| 5912 | function updateFilesGate() { |
| 5913 | const totalOpen = peersWithOpenFiles().length; |
| 5914 | const selected = App.ui.selectedFilesPeers ? App.ui.selectedFilesPeers().length : totalOpen; |
| 5915 | drop.classList.toggle('disabled', !selected); |
| 5916 | } |
| 5917 | App.ui.updateFilesGate = updateFilesGate; |
| 5918 | updateFilesGate(); |
| 5919 | |
| 5920 | /* Target-aware writes for the per-peer encoder fields. `all` updates the |
| 5921 | global settings and every connected peer (so new peers inherit too). |
| 5922 | A specific peer id updates only that peer; the global "defaults" stay |
| 5923 | unchanged in that case. */ |
| 5924 | function currentTarget() { |
| 5925 | return document.getElementById('settings-target').value || 'all'; |
| 5926 | } |
| 5927 | function targetPeers() { |
| 5928 | const t = currentTarget(); |
| 5929 | if (t === 'all') return Array.from(App.state.peers.values()); |
| 5930 | const peer = App.state.peers.get(t); |
| 5931 | return peer ? [peer] : []; |
| 5932 | } |
| 5933 | function writeVideoEncoder(maxKbps, degrade) { |
| 5934 | const t = currentTarget(); |
| 5935 | if (t === 'all') { |
| 5936 | App.state.settings.video.maxBitrateKbps = maxKbps; |
| 5937 | App.state.settings.video.degradationPreference = degrade; |
| 5938 | } |
| 5939 | for (const p of targetPeers()) { |
| 5940 | p.videoMaxBitrateKbps = maxKbps; |
| 5941 | p.videoDegradationPreference = degrade; |
| 5942 | } |
| 5943 | if (t === 'all') App.media.applyCamSendParamsAll(); |
| 5944 | else { |
| 5945 | const peer = App.state.peers.get(t); |
| 5946 | if (peer) App.media.applyCamSendParamsFor(peer); |
| 5947 | } |
| 5948 | } |
| 5949 | function writeScreenEncoder(maxKbps, degrade) { |
| 5950 | const t = currentTarget(); |
| 5951 | if (t === 'all') { |
| 5952 | App.state.settings.screen.maxBitrateKbps = maxKbps; |
| 5953 | App.state.settings.screen.degradationPreference = degrade; |
| 5954 | } |
| 5955 | for (const p of targetPeers()) { |
| 5956 | p.screenMaxBitrateKbps = maxKbps; |
| 5957 | p.screenDegradationPreference = degrade; |
| 5958 | } |
| 5959 | if (t === 'all') App.media.applyScreenSendParamsAll(); |
| 5960 | else { |
| 5961 | const peer = App.state.peers.get(t); |
| 5962 | if (peer) App.media.applyScreenSendParamsFor(peer); |
| 5963 | } |
| 5964 | } |
| 5965 | function writeSendCodec(codec) { |
| 5966 | const t = currentTarget(); |
| 5967 | if (t === 'all') App.state.settings.sendVideoCodec = codec; |
| 5968 | for (const p of targetPeers()) p.sendVideoCodec = codec; |
| 5969 | if (t === 'all') { |
| 5970 | App.media.applyCamSendParamsAll(); |
| 5971 | App.media.applyScreenSendParamsAll(); |
| 5972 | } else { |
| 5973 | const peer = App.state.peers.get(t); |
| 5974 | if (peer) { |
| 5975 | App.media.applyCamSendParamsFor(peer); |
| 5976 | App.media.applyScreenSendParamsFor(peer); |
| 5977 | } |
| 5978 | } |
| 5979 | } |
| 5980 | |
| 5981 | /* Populate the per-peer encoder inputs from the current target. The |
| 5982 | resolution/fps and audio inputs are unaffected — they're always global. */ |
| 5983 | App.ui.loadSettingsForTarget = function () { |
| 5984 | const t = currentTarget(); |
| 5985 | const $ = id => document.getElementById(id); |
| 5986 | let v, s, codec; |
| 5987 | if (t === 'all') { |
| 5988 | v = { maxBitrateKbps: App.state.settings.video.maxBitrateKbps, |
| 5989 | degradationPreference: App.state.settings.video.degradationPreference }; |
| 5990 | s = { maxBitrateKbps: App.state.settings.screen.maxBitrateKbps, |
| 5991 | degradationPreference: App.state.settings.screen.degradationPreference }; |
| 5992 | codec = App.state.settings.sendVideoCodec || 'auto'; |
| 5993 | } else { |
| 5994 | const peer = App.state.peers.get(t); |
| 5995 | if (!peer) return; |
| 5996 | v = { maxBitrateKbps: peer.videoMaxBitrateKbps, |
| 5997 | degradationPreference: peer.videoDegradationPreference }; |
| 5998 | s = { maxBitrateKbps: peer.screenMaxBitrateKbps, |
| 5999 | degradationPreference: peer.screenDegradationPreference }; |
| 6000 | codec = peer.sendVideoCodec || 'auto'; |
| 6001 | } |
| 6002 | $('rt-v-maxbr').value = v.maxBitrateKbps || 0; |
| 6003 | $('rt-v-degrade').value = v.degradationPreference || 'balanced'; |
| 6004 | $('rt-s-maxbr').value = s.maxBitrateKbps || 0; |
| 6005 | $('rt-s-degrade').value = s.degradationPreference || 'maintain-resolution'; |
| 6006 | const rtCodec = $('rt-codec'); |
| 6007 | if (rtCodec) { |
| 6008 | const want = codec.toLowerCase(); |
| 6009 | const match = Array.from(rtCodec.options).find(o => o.value.toLowerCase() === want); |
| 6010 | rtCodec.value = match ? match.value : 'auto'; |
| 6011 | } |
| 6012 | }; |
| 6013 | document.getElementById('settings-target').addEventListener('change', () => { |
| 6014 | App.ui.loadSettingsForTarget(); |
| 6015 | }); |
| 6016 | |
| 6017 | /* Username (always global). */ |
| 6018 | document.getElementById('rt-username-apply').addEventListener('click', () => { |
| 6019 | const inp = document.getElementById('rt-username'); |
| 6020 | const name = (inp.value || '').trim().slice(0, 64) || 'Anonymous'; |
| 6021 | inp.value = name; |
| 6022 | if (name === App.state.username) return; |
| 6023 | App.state.username = name; |
| 6024 | saveUsername(name); |
| 6025 | /* Update local tile label + broadcast to all peers. */ |
| 6026 | const localLabel = document.getElementById('tile-local-label'); |
| 6027 | if (localLabel) localLabel.textContent = name + ' (you)'; |
| 6028 | App.chat.broadcastUsername?.(); |
| 6029 | }); |
| 6030 | |
| 6031 | /* Capture-side applies (always global). */ |
| 6032 | withReentryGuard('rt-v-cap-apply', async () => { |
| 6033 | const v = App.state.settings.video; |
| 6034 | const prevW = v.width, prevH = v.height, prevFps = v.frameRate; |
| 6035 | v.width = parseInt(document.getElementById('rt-v-w').value, 10) || 0; |
| 6036 | v.height = parseInt(document.getElementById('rt-v-h').value, 10) || 0; |
| 6037 | v.frameRate = parseInt(document.getElementById('rt-v-fps').value, 10) || 0; |
| 6038 | const camChanged = v.width !== prevW || v.height !== prevH || v.frameRate !== prevFps; |
| 6039 | const camOn = document.getElementById('tb-cam').classList.contains('on'); |
| 6040 | if (camChanged && camOn) { |
| 6041 | App.log.info('media', 'restarting camera to apply new resolution/framerate'); |
| 6042 | await App.media.setCam(false); |
| 6043 | await App.media.setCam(true); |
| 6044 | } |
| 6045 | }); |
| 6046 | withReentryGuard('rt-s-cap-apply', async () => { |
| 6047 | const s = App.state.settings.screen; |
| 6048 | const prevW = s.width, prevH = s.height, prevFps = s.frameRate; |
| 6049 | s.width = parseInt(document.getElementById('rt-s-w').value, 10) || 0; |
| 6050 | s.height = parseInt(document.getElementById('rt-s-h').value, 10) || 0; |
| 6051 | s.frameRate = parseInt(document.getElementById('rt-s-fps').value, 10) || 0; |
| 6052 | const dimsChanged = s.width !== prevW || s.height !== prevH || s.frameRate !== prevFps; |
| 6053 | const screenOn = document.getElementById('tb-screen').classList.contains('on'); |
| 6054 | if (dimsChanged && screenOn) { |
| 6055 | App.log.info('media', 'restarting screen share to apply new resolution/framerate'); |
| 6056 | await App.media.stopScreenshare(); |
| 6057 | try { await App.media.startScreenshare(); } |
| 6058 | catch (e) { App.log.warn('media', 'restart screen failed', e.message); } |
| 6059 | } |
| 6060 | }); |
| 6061 | /* Encoder-side applies (per target). */ |
| 6062 | withReentryGuard('rt-v-enc-apply', async () => { |
| 6063 | const maxBr = parseInt(document.getElementById('rt-v-maxbr').value, 10) || 0; |
| 6064 | const degrade = document.getElementById('rt-v-degrade').value; |
| 6065 | writeVideoEncoder(maxBr, degrade); |
| 6066 | }); |
| 6067 | withReentryGuard('rt-s-enc-apply', async () => { |
| 6068 | const maxBr = parseInt(document.getElementById('rt-s-maxbr').value, 10) || 0; |
| 6069 | const degrade = document.getElementById('rt-s-degrade').value; |
| 6070 | writeScreenEncoder(maxBr, degrade); |
| 6071 | }); |
| 6072 | withReentryGuard('rt-codec-apply', async () => { |
| 6073 | const codec = document.getElementById('rt-codec').value || 'auto'; |
| 6074 | writeSendCodec(codec); |
| 6075 | }); |
| 6076 | withReentryGuard('rt-a-apply', async () => { |
| 6077 | const a = App.state.settings.audio; |
| 6078 | const prevCh = a.channelCount, prevRate = a.sampleRate; |
| 6079 | a.echoCancellation = document.getElementById('rt-a-aec').checked; |
| 6080 | a.noiseSuppression = document.getElementById('rt-a-ns').checked; |
| 6081 | a.autoGainControl = document.getElementById('rt-a-agc').checked; |
| 6082 | a.channelCount = parseInt(document.getElementById('rt-a-channels').value, 10) || 1; |
| 6083 | a.sampleRate = parseInt(document.getElementById('rt-a-rate').value, 10) || 0; |
| 6084 | App.media.applyAudioConstraints(); |
| 6085 | const capChanged = a.channelCount !== prevCh || a.sampleRate !== prevRate; |
| 6086 | const micOn = document.getElementById('tb-mic').classList.contains('on'); |
| 6087 | if (capChanged && micOn) { |
| 6088 | App.log.info('media', 'restarting microphone to apply new channels/sample rate'); |
| 6089 | await App.media.setMic(false); |
| 6090 | await App.media.setMic(true); |
| 6091 | } |
| 6092 | }); |
| 6093 | |
| 6094 | /* Stats: peer dropdown + export */ |
| 6095 | document.getElementById('stats-peer').addEventListener('change', () => App.stats.refreshNow()); |
| 6096 | document.getElementById('stats-export').addEventListener('click', () => App.stats.exportAll()); |
| 6097 | |
| 6098 | setupConsole(); |
| 6099 | setupDevicePickers(); |
| 6100 | App.log.info('app', 'ready'); |
| 6101 | } |
| 6102 | |
| 6103 | /* Tear down ALL peers, stop local media, and reset call-tied UI state. |
| 6104 | Called when the user leaves the call entirely. */ |
| 6105 | function teardownAll(opts) { |
| 6106 | const sendBye = !opts || opts.sendBye !== false; |
| 6107 | if (sendBye) App.chat.sendByeAll(); |
| 6108 | App.stats.stop(); |
| 6109 | App.tiles.teardownObserver?.(); |
| 6110 | /* Snapshot peers first — removePeer mutates App.state.peers. removePeer |
| 6111 | also closes each peer's loopback pcB if present. */ |
| 6112 | for (const peer of Array.from(App.state.peers.values())) { |
| 6113 | removePeer(peer, { sendBye: false }); |
| 6114 | } |
| 6115 | if (App.state.localStream) App.state.localStream.getTracks().forEach(t => t.stop()); |
| 6116 | if (App.state.screenStream) App.state.screenStream.getTracks().forEach(t => t.stop()); |
| 6117 | if (App.state.iceWarmupStream) { |
| 6118 | App.state.iceWarmupStream.getTracks().forEach(t => t.stop()); |
| 6119 | App.state.iceWarmupStream = null; |
| 6120 | const wb = document.getElementById('ice-warmup'); |
| 6121 | const ws = document.getElementById('ice-warmup-status'); |
| 6122 | if (wb) wb.textContent = 'Enable LAN connectivity'; |
| 6123 | if (ws) { ws.textContent = 'off'; ws.className = 'pill'; } |
| 6124 | } |
| 6125 | App.state.localStream = null; |
| 6126 | App.state.screenStream = null; |
| 6127 | App.state.micTrack = null; |
| 6128 | App.state.camTrack = null; |
| 6129 | App.state.bannerDismissed = false; |
| 6130 | const main = document.getElementById('vid-local-main'); |
| 6131 | const pip = document.getElementById('vid-local-pip'); |
| 6132 | if (main) main.srcObject = null; |
| 6133 | if (pip) pip.srcObject = null; |
| 6134 | const ltile = document.getElementById('tile-local'); |
| 6135 | if (ltile) { ltile.classList.add('empty'); ltile.classList.remove('screen'); } |
| 6136 | document.querySelectorAll('#video-area .video-tile .pip').forEach(el => el.classList.add('hidden')); |
| 6137 | /* Reset toolbar buttons back to the initial off state. */ |
| 6138 | for (const [id, label] of [['tb-mic', 'Mic off'], ['tb-cam', 'Cam off'], ['tb-screen', 'Screen off']]) { |
| 6139 | const btn = document.getElementById(id); |
| 6140 | if (!btn) continue; |
| 6141 | btn.classList.remove('on'); |
| 6142 | btn.classList.add('off'); |
| 6143 | btn.querySelector('.nowrap').textContent = label; |
| 6144 | } |
| 6145 | updateConnPill(); |
| 6146 | App.banner.refresh(); |
| 6147 | } |
| 6148 | |
| 6149 | function hangup(opts) { |
| 6150 | App.log.info('app', 'hangup (leave call)'); |
| 6151 | teardownAll(opts); |
| 6152 | showView('view-welcome'); |
| 6153 | } |
| 6154 | |
| 6155 | if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', wire); |
| 6156 | else wire(); |
| 6157 | </script> |
| 6158 | </body> |
| 6159 | </html> |
| 6160 |