| 1 | // termbridge sidebar. |
| 2 | // |
| 3 | // Owns the WebSocket directly. There is deliberately no relay through the |
| 4 | // service worker: `runtime.sendMessage` is reachable from content scripts, so |
| 5 | // routing terminal data through it would create exactly the bridge that lets a |
| 6 | // hostile page reach the shell. This document has no inbound message listeners. |
| 7 | |
| 8 | // One of the two always exists — this file only ever runs as sidebar.html — but |
| 9 | // neither is declared unconditionally, so say which. |
| 10 | const api = /** @type {TbExtensionApi} */ (globalThis.browser ?? globalThis.chrome); |
| 11 | const storage = api.storage.local; |
| 12 | |
| 13 | /** |
| 14 | * Every id passed here is one this file's own sidebar.html declares, so a miss |
| 15 | * is a bug in the pair rather than a runtime condition to handle. Asserting |
| 16 | * that is what keeps the call sites readable. |
| 17 | * |
| 18 | * @param {string} id |
| 19 | * @returns {HTMLElement} |
| 20 | */ |
| 21 | const $ = (id) => /** @type {HTMLElement} */ (document.getElementById(id)); |
| 22 | |
| 23 | /** @param {string} id @returns {HTMLInputElement} */ |
| 24 | const $input = (id) => /** @type {HTMLInputElement} */ ($(id)); |
| 25 | /** @param {string} id @returns {HTMLSelectElement} */ |
| 26 | const $select = (id) => /** @type {HTMLSelectElement} */ ($(id)); |
| 27 | |
| 28 | const logEl = $("log"); |
| 29 | /** @param {string} m */ |
| 30 | const log = (m) => { |
| 31 | logEl.textContent += `${m}\n`; |
| 32 | logEl.scrollTop = logEl.scrollHeight; |
| 33 | }; |
| 34 | |
| 35 | const ORIGIN = location.origin; |
| 36 | $("pair-cmd").textContent = `termbridge pair ${ORIGIN}`; |
| 37 | |
| 38 | // --- terminal --------------------------------------------------------------- |
| 39 | |
| 40 | // --- theme ------------------------------------------------------------------- |
| 41 | |
| 42 | const darkQuery = window.matchMedia("(prefers-color-scheme: dark)"); |
| 43 | let themePref = "auto"; |
| 44 | let termReady = false; |
| 45 | |
| 46 | function currentTheme() { |
| 47 | return Themes.resolveTheme(themePref, darkQuery.matches); |
| 48 | } |
| 49 | |
| 50 | function applyTheme() { |
| 51 | const t = currentTheme(); |
| 52 | const root = document.documentElement; |
| 53 | for (const [k, v] of Object.entries(t.ui)) root.style.setProperty(k, v); |
| 54 | // Drives native scrollbars, form controls and the caret. |
| 55 | root.style.colorScheme = t.colorScheme; |
| 56 | if (termReady) term.options.theme = t.xterm; |
| 57 | $select("theme-select").value = themePref; |
| 58 | } |
| 59 | |
| 60 | /** @type {Record<string, { cls: string, hint: string }>} */ |
| 61 | const DENSITIES = { |
| 62 | normal: { cls: "", hint: "Session tabs, status text and icons." }, |
| 63 | compact: { cls: "compact", hint: "Tighter tabs — about one extra terminal row." }, |
| 64 | hidden: { cls: "chromeless", hint: "Hover the top edge of the panel to bring it back." }, |
| 65 | }; |
| 66 | let density = "normal"; |
| 67 | |
| 68 | function applyDensity() { |
| 69 | const d = DENSITIES[density] ?? DENSITIES.normal; |
| 70 | document.body.classList.remove("compact", "chromeless"); |
| 71 | if (d.cls) document.body.classList.add(d.cls); |
| 72 | $select("density-select").value = density; |
| 73 | $("density-hint").textContent = d.hint; |
| 74 | // The terminal has a different number of rows now. |
| 75 | if (termReady) { |
| 76 | fit.fit(); |
| 77 | sendSize(); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | /** @param {string} value */ |
| 82 | function setDensity(value) { |
| 83 | density = DENSITIES[value] ? value : "normal"; |
| 84 | storage.set({ density }); |
| 85 | applyDensity(); |
| 86 | } |
| 87 | |
| 88 | // Below ~8px xterm.js's glyph atlas stops being legible; above ~32 a sidebar |
| 89 | // holds too few columns to be a terminal. |
| 90 | const FONT_DEFAULT = 12; |
| 91 | const FONT_MIN = 8; |
| 92 | const FONT_MAX = 32; |
| 93 | let fontSize = FONT_DEFAULT; |
| 94 | |
| 95 | function applyFontSize() { |
| 96 | $("font-size").textContent = String(fontSize); |
| 97 | if (!termReady) return; |
| 98 | term.options.fontSize = fontSize; |
| 99 | // Cell metrics changed, so the row/column count did too. |
| 100 | fit.fit(); |
| 101 | sendSize(); |
| 102 | } |
| 103 | |
| 104 | /** @param {number|string} value */ |
| 105 | function setFontSize(value) { |
| 106 | const n = Math.round(Number(value)); |
| 107 | fontSize = Number.isFinite(n) ? Math.min(FONT_MAX, Math.max(FONT_MIN, n)) : FONT_DEFAULT; |
| 108 | storage.set({ fontSize }); |
| 109 | applyFontSize(); |
| 110 | } |
| 111 | |
| 112 | /** `_` and `+` are what the shifted keys report. @type {Record<string, number>} */ |
| 113 | const FONT_STEP = { "=": 1, "+": 1, "-": -1, _: -1 }; |
| 114 | |
| 115 | /** |
| 116 | * Ctrl+Alt rather than plain Ctrl: Ctrl+= / Ctrl+- / Ctrl+0 are browser zoom |
| 117 | * accelerators, which pages cannot cancel, so binding them would zoom the whole |
| 118 | * panel instead. Ctrl+wheel *is* cancelable, so that gesture works as expected. |
| 119 | * |
| 120 | * Returns true if the event was a font-size command and has been handled. |
| 121 | * |
| 122 | * @param {KeyboardEvent} e |
| 123 | */ |
| 124 | function handleFontKey(e) { |
| 125 | if (!e.ctrlKey || !e.altKey || e.metaKey) return false; |
| 126 | const delta = FONT_STEP[e.key]; |
| 127 | if (delta) setFontSize(fontSize + delta); |
| 128 | else if (e.key === "0") setFontSize(FONT_DEFAULT); |
| 129 | else return false; |
| 130 | e.preventDefault(); |
| 131 | return true; |
| 132 | } |
| 133 | |
| 134 | /** @param {string} pref */ |
| 135 | function setTheme(pref) { |
| 136 | themePref = Themes.PREFERENCES.includes(pref) ? pref : "auto"; |
| 137 | storage.set({ theme: themePref }); |
| 138 | applyTheme(); |
| 139 | } |
| 140 | |
| 141 | // Only matters while the preference is "auto", but the listener is harmless |
| 142 | // otherwise and avoids add/remove churn. |
| 143 | darkQuery.addEventListener("change", () => { |
| 144 | if (themePref === "auto") applyTheme(); |
| 145 | }); |
| 146 | |
| 147 | const term = new Terminal({ |
| 148 | fontFamily: |
| 149 | 'ui-monospace, "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace', |
| 150 | fontSize: FONT_DEFAULT, |
| 151 | lineHeight: 1.2, |
| 152 | cursorBlink: true, |
| 153 | scrollback: 5000, |
| 154 | theme: Themes.resolveTheme("auto", darkQuery.matches).xterm, |
| 155 | // tmux owns the scrollback (copy-mode). Letting xterm.js also scroll fights |
| 156 | // with it and with mouse-mode applications. |
| 157 | allowProposedApi: true, |
| 158 | }); |
| 159 | |
| 160 | const fit = new FitAddon.FitAddon(); |
| 161 | term.loadAddon(fit); |
| 162 | term.open($("term")); |
| 163 | fit.fit(); |
| 164 | |
| 165 | // Returning false keeps the keystroke out of the pty. |
| 166 | term.attachCustomKeyEventHandler((e) => { |
| 167 | if (e.type !== "keydown") return true; |
| 168 | return !handleFontKey(e); |
| 169 | }); |
| 170 | |
| 171 | $("term").addEventListener( |
| 172 | "wheel", |
| 173 | (e) => { |
| 174 | if (!e.ctrlKey) return; |
| 175 | e.preventDefault(); |
| 176 | setFontSize(fontSize + (e.deltaY < 0 ? 1 : -1)); |
| 177 | }, |
| 178 | { passive: false }, |
| 179 | ); |
| 180 | |
| 181 | // Set only once term *and* fit are usable — applyTheme/applyDensity both touch |
| 182 | // them, and a flag that runs ahead of the objects it guards is worse than none. |
| 183 | termReady = true; |
| 184 | |
| 185 | const enc = new TextEncoder(); |
| 186 | |
| 187 | // --- connection ------------------------------------------------------------- |
| 188 | |
| 189 | let ws = /** @type {WebSocket | null} */ (null); |
| 190 | let connected = false; |
| 191 | // Session tmux says we are on. The name we asked to attach to is only the |
| 192 | // starting point — switch-client moves us and the header should follow. |
| 193 | let sessionName = /** @type {string | null} */ (null); |
| 194 | |
| 195 | // Whether the daemon's program is tmux. Without it there are no windows to put |
| 196 | // in tabs, and "+" would have nothing to create. |
| 197 | let tmuxMode = false; |
| 198 | |
| 199 | /** |
| 200 | * @param {"on"|"off"|"pending"} state drives the dot's colour class |
| 201 | * @param {string} text |
| 202 | */ |
| 203 | function setStatus(state, text) { |
| 204 | $("status").className = `dot ${state}`; |
| 205 | $("status").title = text; |
| 206 | $("status-text").textContent = text; |
| 207 | $("reconnect").hidden = state === "on"; |
| 208 | } |
| 209 | |
| 210 | // One place decides what the header says, so anything that repaints it (a |
| 211 | // finished pick, a fresh session name) can't quietly drop the other half. |
| 212 | function refreshStatus() { |
| 213 | if (!connected) { |
| 214 | setStatus("off", "disconnected"); |
| 215 | return; |
| 216 | } |
| 217 | setStatus("on", sessionName ? `connected · ${sessionName}` : "connected"); |
| 218 | } |
| 219 | |
| 220 | function sendSize() { |
| 221 | if (!connected || !ws) return; |
| 222 | const { cols, rows } = term; |
| 223 | ws.send(JSON.stringify({ type: "resize", cols, rows })); |
| 224 | } |
| 225 | |
| 226 | // The daemon can only answer "invalid token" on the wire; it cannot reach into |
| 227 | // the sidebar. Translate that into the one instruction that actually fixes it. |
| 228 | const TOKEN_HELP = |
| 229 | "Run termbridge token in the terminal running the daemon, then paste " + |
| 230 | "the 64 hex characters it prints into the Token field above."; |
| 231 | |
| 232 | /** @param {string} text */ |
| 233 | function tokenProblem(text) { |
| 234 | $("token-hint").textContent = `${text} ${TOKEN_HELP}`; |
| 235 | $("token-hint").hidden = false; |
| 236 | $("settings").hidden = false; |
| 237 | term.write( |
| 238 | `\r\n\x1b[33m ${text}\x1b[0m\r\n` + |
| 239 | " Open \x1b[1msettings\x1b[0m (top right) and set the Token.\r\n" + |
| 240 | " \x1b[90mtermbridge token\x1b[0m prints the value to paste.\r\n", |
| 241 | ); |
| 242 | $("token").focus(); |
| 243 | } |
| 244 | |
| 245 | function connect() { |
| 246 | const url = $input("url").value.trim(); |
| 247 | const token = $input("token").value.trim(); |
| 248 | |
| 249 | if (!token) { |
| 250 | // Connecting with an empty token just produces an "invalid token" reject in |
| 251 | // the daemon's log, which reads like a wrong token rather than a missing one. |
| 252 | setStatus("off", "no token"); |
| 253 | log("no token set — not connecting"); |
| 254 | tokenProblem("No token is set."); |
| 255 | return; |
| 256 | } |
| 257 | $("token-hint").hidden = true; |
| 258 | |
| 259 | if (ws) { |
| 260 | ws.onclose = null; |
| 261 | ws.close(); |
| 262 | } |
| 263 | connected = false; |
| 264 | setStatus("pending", "connecting…"); |
| 265 | log(`connecting to ${url}`); |
| 266 | |
| 267 | try { |
| 268 | ws = new WebSocket(url); |
| 269 | } catch (e) { |
| 270 | setStatus("off", "failed"); |
| 271 | log(`constructor threw: ${e}`); |
| 272 | return; |
| 273 | } |
| 274 | // The handlers close over *this* socket rather than whatever `ws` points at |
| 275 | // when they fire: a reconnect replaces the module-level reference, and a |
| 276 | // late frame from the old socket must not be answered on the new one. |
| 277 | const sock = ws; |
| 278 | sock.binaryType = "arraybuffer"; |
| 279 | |
| 280 | sock.onopen = () => { |
| 281 | // Token goes in a frame, never the URL — query strings end up in logs, |
| 282 | // crash dumps and devtools history. |
| 283 | sock.send(JSON.stringify({ type: "auth", token })); |
| 284 | }; |
| 285 | |
| 286 | sock.onmessage = (ev) => { |
| 287 | if (typeof ev.data === "string") { |
| 288 | // A claim about the frame, not a guarantee — see types/globals.d.ts. It |
| 289 | // buys the narrowing below, not trust. |
| 290 | const msg = /** @type {TbFrame} */ (JSON.parse(ev.data)); |
| 291 | if (msg.type === "ok") { |
| 292 | connected = true; |
| 293 | tmuxMode = msg.tmux === true; |
| 294 | $("trust-hint").hidden = true; |
| 295 | $("token-hint").hidden = true; |
| 296 | renderSessions(msg); |
| 297 | const want = $input("session").value.trim() || undefined; |
| 298 | // Optimistic; the daemon's first status frame replaces this with what |
| 299 | // tmux actually attached us to, usually within a second. |
| 300 | sessionName = want ?? msg.defaultSession ?? msg.profile; |
| 301 | refreshStatus(); |
| 302 | // Session names only at this point — the window list needs the control |
| 303 | // channel, which the first status frame brings a moment later. |
| 304 | renderSessionSwitch( |
| 305 | (msg.sessions ?? []).map((name) => ({ name, windows: 0, attached: false })), |
| 306 | sessionName, |
| 307 | ); |
| 308 | log(`authenticated, running ${msg.profile}`); |
| 309 | fit.fit(); |
| 310 | // The daemon validates this name and falls back to its default if it |
| 311 | // doesn't like it; we never get to choose the program. |
| 312 | sock.send( |
| 313 | JSON.stringify({ |
| 314 | type: "open", |
| 315 | cols: term.cols, |
| 316 | rows: term.rows, |
| 317 | ...(want ? { session: want } : {}), |
| 318 | }), |
| 319 | ); |
| 320 | $("settings").hidden = true; |
| 321 | term.focus(); |
| 322 | } else if (msg.type === "status") { |
| 323 | if (msg.session && msg.session !== sessionName) { |
| 324 | sessionName = msg.session; |
| 325 | refreshStatus(); |
| 326 | } |
| 327 | renderSessionSwitch(msg.sessions ?? [], msg.session); |
| 328 | renderTabs(msg.windows ?? [], msg.agents ?? []); |
| 329 | } else if (msg.type === "tmux-error") { |
| 330 | // tmux refused the command (session gone, pane closed). The next status |
| 331 | // frame already shows the truth, so this only needs to explain itself. |
| 332 | log(`tmux: ${msg.reason}`); |
| 333 | } else if (msg.type === "exit") { |
| 334 | log(`session exited (${msg.code})`); |
| 335 | term.write(`\r\n\x1b[90m[session exited: ${msg.code}]\x1b[0m\r\n`); |
| 336 | } else if (msg.type === "error") { |
| 337 | setStatus("off", msg.reason); |
| 338 | log(`rejected: ${msg.reason}`); |
| 339 | if (/token|auth/i.test(msg.reason)) { |
| 340 | tokenProblem("The daemon rejected this token."); |
| 341 | } else if (/origin/i.test(msg.reason)) { |
| 342 | $("settings").hidden = false; |
| 343 | term.write( |
| 344 | `\r\n\x1b[33m ${msg.reason}\x1b[0m\r\n` + |
| 345 | " Open \x1b[1msettings\x1b[0m and run the pairing command shown there.\r\n", |
| 346 | ); |
| 347 | } |
| 348 | } |
| 349 | return; |
| 350 | } |
| 351 | // Raw terminal bytes. xterm.js takes Uint8Array directly, so nothing is |
| 352 | // decoded, re-encoded, or mangled on the way in. |
| 353 | term.write(new Uint8Array(ev.data)); |
| 354 | }; |
| 355 | |
| 356 | sock.onerror = () => { |
| 357 | // The browser hides the reason from JS by design. The daemon's stdout has |
| 358 | // the real one (unpaired origin / bad token / rate limited). |
| 359 | log("socket error — check the daemon's output for the reason"); |
| 360 | // Firefox's HTTPS-Only Mode silently rewrites ws:// to wss://, so the most |
| 361 | // likely cause here is that our self-signed certificate isn't trusted yet. |
| 362 | $("trust-hint").hidden = false; |
| 363 | }; |
| 364 | |
| 365 | sock.onclose = (ev) => { |
| 366 | connected = false; |
| 367 | sessionName = null; |
| 368 | tmuxMode = false; |
| 369 | renderTabs([], []); |
| 370 | renderSessionSwitch([], null); |
| 371 | refreshStatus(); |
| 372 | log(`closed code=${ev.code} ${ev.reason || ""}`); |
| 373 | }; |
| 374 | } |
| 375 | |
| 376 | // Ask the daemon to move tmux. The daemon accepts three commands and validates |
| 377 | // every argument; the sidebar cannot name a tmux command of its own. |
| 378 | /** |
| 379 | * @param {{ cmd: "switch"|"create"|"focus"|"select-window"|"new-window"|"kill-window" } |
| 380 | * & Record<string, string>} body |
| 381 | */ |
| 382 | function tmuxCommand(body) { |
| 383 | if (!connected || !ws) return; |
| 384 | ws.send(JSON.stringify({ type: "tmux", ...body })); |
| 385 | } |
| 386 | |
| 387 | // --- window tabs ------------------------------------------------------------ |
| 388 | // |
| 389 | // A tab is a window of the attached session — the thing `prefix 2` selects, not |
| 390 | // a session and not a pane. Window names come from tmux (a shell sets them from |
| 391 | // whatever it is running, so they are as page-influenced as any other terminal |
| 392 | // output) and only ever reach the DOM through textContent. |
| 393 | |
| 394 | // --- pinning ---------------------------------------------------------------- |
| 395 | // |
| 396 | // A pin is a property of this panel, not of the session. tmux is never asked to |
| 397 | // renumber anything: the window keeps its real index, so `prefix 4` still goes |
| 398 | // where it always went, and nothing about your terminal's status line changes. |
| 399 | // All a pin does is move the tab to the front of *this* strip and shrink it to |
| 400 | // its dot and index, which is what buys the room in a narrow sidebar. |
| 401 | // |
| 402 | // Keyed by session name, because window ids are only meaningful inside the tmux |
| 403 | // server that issued them and only prunable against the session we can see. |
| 404 | /** @type {Record<string, string[]>} */ |
| 405 | let pins = {}; |
| 406 | |
| 407 | // The last frame's worth of windows, so a pin — which changes nothing on the |
| 408 | // wire and so produces no status frame — can repaint the strip on its own. |
| 409 | /** @type {TbWindowInfo[]} */ |
| 410 | let lastWindows = []; |
| 411 | /** @type {TbAgent[]} */ |
| 412 | let lastAgents = []; |
| 413 | |
| 414 | /** @returns {Set<string>} pinned window ids in the attached session */ |
| 415 | function pinnedIds() { |
| 416 | return new Set((sessionName && pins[sessionName]) || []); |
| 417 | } |
| 418 | |
| 419 | /** @param {Set<string>} ids */ |
| 420 | function savePins(ids) { |
| 421 | if (!sessionName) return; |
| 422 | if (ids.size) pins[sessionName] = [...ids]; |
| 423 | else delete pins[sessionName]; |
| 424 | storage.set({ pins }); |
| 425 | } |
| 426 | |
| 427 | /** |
| 428 | * @param {TbWindowInfo[]} windows in index order |
| 429 | * @param {TbAgent[]} agents so a tab can say what Claude is doing in it |
| 430 | */ |
| 431 | function renderTabs(windows, agents) { |
| 432 | lastWindows = windows; |
| 433 | lastAgents = agents; |
| 434 | const strip = $("tabs"); |
| 435 | const show = connected && tmuxMode && windows.length > 0; |
| 436 | $("tab-new").hidden = !(connected && tmuxMode && sessionName); |
| 437 | strip.hidden = !show; |
| 438 | if (!show) { |
| 439 | strip.textContent = ""; |
| 440 | strip.dataset.sig = ""; |
| 441 | syncSpinner(); |
| 442 | return; |
| 443 | } |
| 444 | |
| 445 | // A window that closed takes its pin with it. Pruning is safe here and only |
| 446 | // here: this is the one moment we hold the full window list for a session. |
| 447 | const pinned = pinnedIds(); |
| 448 | const live = new Set(windows.map((w) => w.id)); |
| 449 | for (const id of pinned) { |
| 450 | if (!live.has(id)) pinned.delete(id); |
| 451 | } |
| 452 | if (pinned.size !== ((sessionName && pins[sessionName]) || []).length) savePins(pinned); |
| 453 | |
| 454 | // Pinned first, each group still in tmux's own index order — nothing is |
| 455 | // reordered on the server, so the indexes stay the ground truth they are. |
| 456 | const ordered = [ |
| 457 | ...windows.filter((w) => pinned.has(w.id)), |
| 458 | ...windows.filter((w) => !pinned.has(w.id)), |
| 459 | ]; |
| 460 | |
| 461 | // Repainting drops hover and any focus ring; status frames arrive on every |
| 462 | // tmux notification and once a second besides. |
| 463 | const claude = agentByWindow(agents); |
| 464 | const sig = JSON.stringify( |
| 465 | ordered.map((w) => { |
| 466 | const a = claude[w.id]; |
| 467 | return [w.id, w.index, w.name, w.active, w.activity, a?.state, agentLabel(a), pinned.has(w.id)]; |
| 468 | }), |
| 469 | ); |
| 470 | if (strip.dataset.sig !== sig) { |
| 471 | strip.dataset.sig = sig; |
| 472 | strip.textContent = ""; |
| 473 | // Killing a session's last window kills the session, and with it the client |
| 474 | // this panel is looking through. That is not a tab close, so it isn't |
| 475 | // offered as one. |
| 476 | const closable = windows.length > 1; |
| 477 | for (const w of ordered) { |
| 478 | strip.appendChild(windowTab(w, claude[w.id], closable, pinned.has(w.id))); |
| 479 | } |
| 480 | } |
| 481 | |
| 482 | syncSpinner(); |
| 483 | |
| 484 | const active = strip.querySelector('[aria-selected="true"]'); |
| 485 | // Sidebars are narrow enough that the window you are on can be scrolled out |
| 486 | // of the strip entirely. |
| 487 | if (active) active.scrollIntoView({ block: "nearest", inline: "nearest" }); |
| 488 | } |
| 489 | |
| 490 | // Loudest first: a window with something waiting on you outranks one that is |
| 491 | // merely busy. A window with no Claude in it gets no entry at all. |
| 492 | const AGENT_RANK = ["waiting", "working", "idle", "unknown"]; |
| 493 | |
| 494 | /** |
| 495 | * @param {TbAgent[]} agents |
| 496 | * @returns {Record<string, TbAgent>} window id → the one worth reporting |
| 497 | */ |
| 498 | function agentByWindow(agents) { |
| 499 | /** @type {Record<string, TbAgent>} */ |
| 500 | const out = {}; |
| 501 | for (const a of agents) { |
| 502 | const seen = out[a.window_id]; |
| 503 | if (!seen || AGENT_RANK.indexOf(a.state) < AGENT_RANK.indexOf(seen.state)) { |
| 504 | out[a.window_id] = a; |
| 505 | } |
| 506 | } |
| 507 | return out; |
| 508 | } |
| 509 | |
| 510 | /** |
| 511 | * A slot rather than a bare button, because the close ✕ has to be a sibling: |
| 512 | * a button inside a button is invalid markup and unreachable to a screen |
| 513 | * reader, and closing a window is not selecting it. |
| 514 | * |
| 515 | * @param {TbWindowInfo} w |
| 516 | * @param {TbAgent} [claude] the agent worth reporting in this window, if any |
| 517 | * @param {boolean} [closable] |
| 518 | * @param {boolean} [isPinned] |
| 519 | */ |
| 520 | function windowTab(w, claude, closable, isPinned) { |
| 521 | // A pinned tab drops its name and its ✕, the same two things Chrome takes |
| 522 | // away: it is down to a dot and a number, and it cannot be closed by a |
| 523 | // mis-aimed click. The name is still in the tooltip. |
| 524 | const canClose = closable && !isPinned; |
| 525 | const slot = document.createElement("div"); |
| 526 | slot.className = |
| 527 | `tab-slot${w.active ? " active" : ""}${canClose ? " closable" : ""}` + |
| 528 | `${isPinned ? " pinned" : ""}`; |
| 529 | |
| 530 | const tab = document.createElement("button"); |
| 531 | tab.type = "button"; |
| 532 | tab.className = "tab"; |
| 533 | // Activity is tmux's own "something happened here while you were away", and |
| 534 | // it is the whole reason a background tab is worth looking at. |
| 535 | if (!w.active && w.activity) tab.classList.add("activity"); |
| 536 | tab.setAttribute("role", "tab"); |
| 537 | tab.setAttribute("aria-selected", String(w.active)); |
| 538 | tab.dataset.window = w.id; |
| 539 | |
| 540 | const glyph = document.createElement("span"); |
| 541 | // The favicon slot. Empty unless Claude is in there, so a plain window of |
| 542 | // shell doesn't wear a status light it has no state to report. |
| 543 | const state = claude?.state ?? "none"; |
| 544 | glyph.className = `glyph ${state}`; |
| 545 | glyph.textContent = state === "working" ? spinnerGlyph() : STATIC_GLYPH[state] ?? ""; |
| 546 | glyph.setAttribute("aria-hidden", "true"); |
| 547 | tab.appendChild(glyph); |
| 548 | |
| 549 | const index = document.createElement("span"); |
| 550 | index.className = "index"; |
| 551 | index.textContent = String(w.index); |
| 552 | tab.appendChild(index); |
| 553 | |
| 554 | if (!isPinned) { |
| 555 | const name = document.createElement("span"); |
| 556 | name.className = "name"; |
| 557 | name.textContent = w.name; |
| 558 | tab.appendChild(name); |
| 559 | } |
| 560 | |
| 561 | // With no chip row left, the tooltip is where the detail lives: which tool is |
| 562 | // in flight, what Claude is blocked on, and — for a pinned tab — the name it |
| 563 | // gave up to fit. |
| 564 | tab.title = [ |
| 565 | `window ${w.index}: ${w.name}`, |
| 566 | w.panes > 1 ? `${w.panes} panes` : "", |
| 567 | claude ? `claude ${claude.state} — ${agentLabel(claude)}` : "", |
| 568 | claude?.title ?? "", |
| 569 | !w.active && w.activity ? "activity" : "", |
| 570 | isPinned ? "pinned — right-click to unpin" : "", |
| 571 | ] |
| 572 | .filter(Boolean) |
| 573 | .join("\n"); |
| 574 | |
| 575 | tab.addEventListener("click", () => { |
| 576 | // Selecting a window is a property of the session, so this moves anyone |
| 577 | // else watching it too — exactly as pressing prefix-2 in the terminal does. |
| 578 | if (!w.active) tmuxCommand({ cmd: "select-window", window: w.id }); |
| 579 | term.focus(); |
| 580 | }); |
| 581 | slot.appendChild(tab); |
| 582 | |
| 583 | if (canClose) slot.appendChild(closeButton(w)); |
| 584 | |
| 585 | slot.addEventListener("contextmenu", (e) => { |
| 586 | e.preventDefault(); |
| 587 | openTabMenu(e, w, !!isPinned, !!closable); |
| 588 | }); |
| 589 | return slot; |
| 590 | } |
| 591 | |
| 592 | // --- tab context menu ------------------------------------------------------- |
| 593 | // |
| 594 | // Built rather than native: an extension page gets the browser's own menu here, |
| 595 | // which has nothing to say about tmux windows. Deliberately not a <dialog> or |
| 596 | // anything modal — a modal in this panel would block the socket's message |
| 597 | // handler while it is up. |
| 598 | |
| 599 | let openMenu = /** @type {HTMLElement | null} */ (null); |
| 600 | |
| 601 | function closeTabMenu() { |
| 602 | openMenu?.remove(); |
| 603 | openMenu = null; |
| 604 | } |
| 605 | |
| 606 | /** |
| 607 | * @param {MouseEvent} e |
| 608 | * @param {TbWindowInfo} w |
| 609 | * @param {boolean} isPinned |
| 610 | * @param {boolean} closable |
| 611 | */ |
| 612 | function openTabMenu(e, w, isPinned, closable) { |
| 613 | closeTabMenu(); |
| 614 | const menu = document.createElement("div"); |
| 615 | menu.className = "tab-menu"; |
| 616 | menu.setAttribute("role", "menu"); |
| 617 | |
| 618 | /** |
| 619 | * @param {string} label |
| 620 | * @param {() => void} run |
| 621 | */ |
| 622 | const item = (label, run) => { |
| 623 | const b = document.createElement("button"); |
| 624 | b.type = "button"; |
| 625 | b.setAttribute("role", "menuitem"); |
| 626 | b.textContent = label; |
| 627 | b.addEventListener("click", () => { |
| 628 | closeTabMenu(); |
| 629 | run(); |
| 630 | }); |
| 631 | menu.appendChild(b); |
| 632 | return b; |
| 633 | }; |
| 634 | |
| 635 | item(isPinned ? "Unpin" : "Pin", () => { |
| 636 | const ids = pinnedIds(); |
| 637 | if (isPinned) ids.delete(w.id); |
| 638 | else ids.add(w.id); |
| 639 | savePins(ids); |
| 640 | // Nothing on the wire changed, so nothing will arrive to trigger a repaint. |
| 641 | $("tabs").dataset.sig = ""; |
| 642 | renderTabs(lastWindows, lastAgents); |
| 643 | }); |
| 644 | |
| 645 | if (!w.active) { |
| 646 | item("Select", () => { |
| 647 | tmuxCommand({ cmd: "select-window", window: w.id }); |
| 648 | term.focus(); |
| 649 | }); |
| 650 | } |
| 651 | |
| 652 | if (closable) { |
| 653 | const kill = item("Close window", () => { |
| 654 | tmuxCommand({ cmd: "kill-window", window: w.id }); |
| 655 | log(`killed window ${w.index} (${w.name})`); |
| 656 | term.focus(); |
| 657 | }); |
| 658 | kill.className = "danger"; |
| 659 | } |
| 660 | |
| 661 | document.body.appendChild(menu); |
| 662 | // Placed after measuring, so a menu opened near an edge folds back inside |
| 663 | // rather than off the panel. |
| 664 | const r = menu.getBoundingClientRect(); |
| 665 | const x = Math.min(e.clientX, Math.max(0, window.innerWidth - r.width - 4)); |
| 666 | const y = Math.min(e.clientY, Math.max(0, window.innerHeight - r.height - 4)); |
| 667 | menu.style.left = `${x}px`; |
| 668 | menu.style.top = `${y}px`; |
| 669 | openMenu = menu; |
| 670 | |
| 671 | // Any click that isn't on the menu, anywhere, dismisses it. |
| 672 | setTimeout(() => { |
| 673 | window.addEventListener("pointerdown", onDismiss, { once: true, capture: true }); |
| 674 | }, 0); |
| 675 | } |
| 676 | |
| 677 | /** @param {Event} e */ |
| 678 | function onDismiss(e) { |
| 679 | if (openMenu && e.target instanceof Node && openMenu.contains(e.target)) return; |
| 680 | closeTabMenu(); |
| 681 | } |
| 682 | |
| 683 | /** @param {TbWindowInfo} w */ |
| 684 | function closeButton(w) { |
| 685 | const btn = document.createElement("button"); |
| 686 | btn.type = "button"; |
| 687 | btn.className = "tab-close"; |
| 688 | const label = `Close window ${w.index}: ${w.name}`; |
| 689 | btn.title = label; |
| 690 | btn.setAttribute("aria-label", label); |
| 691 | btn.appendChild(strokeIcon("M4 4l8 8M12 4l-8 8")); |
| 692 | |
| 693 | btn.addEventListener("click", (e) => { |
| 694 | // The tab underneath would otherwise read this as "select me". |
| 695 | e.stopPropagation(); |
| 696 | tmuxCommand({ cmd: "kill-window", window: w.id }); |
| 697 | // The one destructive thing in the panel, and tmux has no undo for it, so |
| 698 | // it at least leaves a record of what went. |
| 699 | log(`killed window ${w.index} (${w.name})`); |
| 700 | term.focus(); |
| 701 | }); |
| 702 | return btn; |
| 703 | } |
| 704 | |
| 705 | const SVG_NS = "http://www.w3.org/2000/svg"; |
| 706 | |
| 707 | /** |
| 708 | * The header's icons are inline SVG rather than unicode glyphs, which render at |
| 709 | * wildly different weights depending on the platform's fallback font. The ones |
| 710 | * built here are the same, just built rather than written out. |
| 711 | * |
| 712 | * @param {string} d |
| 713 | */ |
| 714 | function strokeIcon(d) { |
| 715 | const svg = document.createElementNS(SVG_NS, "svg"); |
| 716 | svg.setAttribute("viewBox", "0 0 16 16"); |
| 717 | svg.setAttribute("aria-hidden", "true"); |
| 718 | const path = document.createElementNS(SVG_NS, "path"); |
| 719 | path.setAttribute("d", d); |
| 720 | path.setAttribute("stroke", "currentColor"); |
| 721 | path.setAttribute("stroke-width", "2"); |
| 722 | path.setAttribute("stroke-linecap", "round"); |
| 723 | svg.appendChild(path); |
| 724 | return svg; |
| 725 | } |
| 726 | |
| 727 | // A new window needs no name: tmux names it after whatever it runs, and the |
| 728 | // terminal renames it as you cd around. So this is one click, no prompt. |
| 729 | $("tab-new").addEventListener("click", () => { |
| 730 | if (sessionName) tmuxCommand({ cmd: "new-window", session: sessionName }); |
| 731 | term.focus(); |
| 732 | }); |
| 733 | |
| 734 | // The session the tabs belong to. One session is not a choice, but the control |
| 735 | // still earns its place: it is where the session name is shown now that the |
| 736 | // status text has given up the row. |
| 737 | /** |
| 738 | * @param {TbSessionInfo[]} sessions |
| 739 | * @param {string | null | undefined} current |
| 740 | */ |
| 741 | function renderSessionSwitch(sessions, current) { |
| 742 | const select = $select("session-switch"); |
| 743 | // Rebuilding while the menu is open would close it under the user's cursor; |
| 744 | // the next status frame repaints it anyway. |
| 745 | if (document.activeElement === select) return; |
| 746 | |
| 747 | const names = sessions.map((s) => s.name); |
| 748 | const same = select.dataset.names === names.join(" ") && select.value === current; |
| 749 | if (same) return; |
| 750 | |
| 751 | select.textContent = ""; |
| 752 | for (const s of sessions) { |
| 753 | const o = document.createElement("option"); |
| 754 | o.value = s.name; |
| 755 | o.textContent = s.name; |
| 756 | select.appendChild(o); |
| 757 | } |
| 758 | select.dataset.names = names.join(" "); |
| 759 | if (current) select.value = current; |
| 760 | select.hidden = sessions.length === 0; |
| 761 | // Two things cannot both hold the row: the select shows the session name, so |
| 762 | // the status text only speaks when there is no select to speak for it. |
| 763 | document.body.classList.toggle("has-session", !select.hidden); |
| 764 | } |
| 765 | |
| 766 | $select("session-switch").addEventListener("change", (e) => { |
| 767 | // Moves the existing client: no reconnect, no second pty, and whatever is |
| 768 | // running in the session we leave keeps running. |
| 769 | tmuxCommand({ cmd: "switch", session: /** @type {HTMLSelectElement} */ (e.target).value }); |
| 770 | term.focus(); |
| 771 | }); |
| 772 | |
| 773 | /* --- the working spinner --------------------------------------------------- |
| 774 | Claude Code's own asterisk cycle, so a tab that is thinking looks like the |
| 775 | transcript that is thinking. The frames grow and shrink rather than spin: |
| 776 | a dot swelling to a full asterisk and back, which reads as activity at |
| 777 | 10px where a rotating glyph would just shimmer. */ |
| 778 | const SPINNER_FRAMES = ["·", "✢", "✳", "∗", "✻", "✽", "✻", "∗", "✳", "✢"]; |
| 779 | /** What a tab shows when it is not mid-cycle. */ |
| 780 | /** @type {Record<string, string>} */ |
| 781 | const STATIC_GLYPH = { waiting: "✳", idle: "✻", unknown: "·", none: "" }; |
| 782 | const SPINNER_MS = 130; |
| 783 | |
| 784 | const reducedMotion = matchMedia("(prefers-reduced-motion: reduce)"); |
| 785 | let spinnerStep = 0; |
| 786 | /** @type {number | undefined} */ |
| 787 | let spinnerTimer; |
| 788 | |
| 789 | // Reduced motion keeps the glyph — the tab still says "working" — and parks it |
| 790 | // on the frame the animation spends the most time looking like. |
| 791 | function spinnerGlyph() { |
| 792 | return reducedMotion.matches ? "✻" : SPINNER_FRAMES[spinnerStep % SPINNER_FRAMES.length]; |
| 793 | } |
| 794 | |
| 795 | /** |
| 796 | * One timer for the whole strip, running only while something is working, so |
| 797 | * an idle panel is not repainting four times a second forever. Repaints touch |
| 798 | * textContent only: renderTabs owns the elements and skips its rebuild whenever |
| 799 | * the signature is unchanged, so the spinner never fights it. |
| 800 | */ |
| 801 | function syncSpinner() { |
| 802 | const working = document.querySelectorAll("#tabs .glyph.working"); |
| 803 | if (!working.length || reducedMotion.matches) { |
| 804 | clearInterval(spinnerTimer); |
| 805 | spinnerTimer = undefined; |
| 806 | return; |
| 807 | } |
| 808 | if (spinnerTimer !== undefined) return; |
| 809 | spinnerTimer = setInterval(() => { |
| 810 | spinnerStep++; |
| 811 | const frame = spinnerGlyph(); |
| 812 | const live = document.querySelectorAll("#tabs .glyph.working"); |
| 813 | if (!live.length) return syncSpinner(); |
| 814 | for (const el of live) el.textContent = frame; |
| 815 | }, SPINNER_MS); |
| 816 | } |
| 817 | |
| 818 | // Turning the preference on mid-run has to stop the timer and settle the |
| 819 | // glyphs where they are, not leave them frozen on whatever frame was up. |
| 820 | reducedMotion.addEventListener("change", () => { |
| 821 | const frame = spinnerGlyph(); |
| 822 | for (const el of document.querySelectorAll("#tabs .glyph.working")) el.textContent = frame; |
| 823 | syncSpinner(); |
| 824 | }); |
| 825 | |
| 826 | // A tooltip's worth of room, so show the most specific thing known: what it is |
| 827 | // blocked on, what tool it is running, else the mode. |
| 828 | // |
| 829 | // Every value here comes from Claude Code's hook payloads by way of the daemon |
| 830 | // — a user prompt, a tool name, a notification message — and is only ever |
| 831 | // assigned through textContent/title, never parsed as markup. |
| 832 | /** @param {TbAgent} [a] */ |
| 833 | function agentLabel(a) { |
| 834 | if (!a) return ""; |
| 835 | if (a.state === "waiting") return a.message || "waiting"; |
| 836 | if (a.state === "working") return a.tool || shortMode(a.mode) || "working"; |
| 837 | if (a.state === "unknown") return "no hook records — run: termbridge hooks"; |
| 838 | return shortMode(a.mode) || "idle"; |
| 839 | } |
| 840 | |
| 841 | // permission_mode arrives camelCased, straight from Claude's hook payload. |
| 842 | /** @type {Record<string, string>} */ |
| 843 | const MODE_SHORT = { |
| 844 | default: "idle", |
| 845 | acceptEdits: "accept edits", |
| 846 | plan: "plan", |
| 847 | bypassPermissions: "bypass", |
| 848 | }; |
| 849 | |
| 850 | /** @param {string | null | undefined} mode */ |
| 851 | function shortMode(mode) { |
| 852 | if (!mode) return ""; |
| 853 | return MODE_SHORT[mode] ?? mode; |
| 854 | } |
| 855 | |
| 856 | /** @param {TbOkFrame} msg */ |
| 857 | function renderSessions(msg) { |
| 858 | if (!msg.tmux) return; |
| 859 | const names = msg.sessions ?? []; |
| 860 | const list = $("session-list"); |
| 861 | list.innerHTML = ""; |
| 862 | for (const name of names) { |
| 863 | const o = document.createElement("option"); |
| 864 | o.value = name; |
| 865 | list.appendChild(o); |
| 866 | } |
| 867 | $input("session").placeholder = msg.defaultSession ?? "browser"; |
| 868 | if (names.length) log(`tmux sessions: ${names.join(", ")}`); |
| 869 | } |
| 870 | |
| 871 | $("session-apply").addEventListener("click", () => { |
| 872 | const name = $input("session").value.trim(); |
| 873 | storage.set({ session: name }); |
| 874 | // Connected, this creates-or-attaches and moves the live client — the field |
| 875 | // is how you reach a session that doesn't exist yet, which the header's |
| 876 | // switcher (existing sessions only) can't do. Disconnected, it's the session |
| 877 | // the next connection opens with. |
| 878 | if (connected && name) { |
| 879 | tmuxCommand({ cmd: "create", session: name }); |
| 880 | $("settings").hidden = true; |
| 881 | term.focus(); |
| 882 | return; |
| 883 | } |
| 884 | connect(); |
| 885 | }); |
| 886 | |
| 887 | // --- element picker --------------------------------------------------------- |
| 888 | // |
| 889 | // Everything the picker returns is page-controlled data. It is displayed, and |
| 890 | // it only reaches the terminal when the user explicitly clicks "insert" — and |
| 891 | // then only after Sanitize.forTerminal has stripped control characters and |
| 892 | // shell-quoted it. |
| 893 | |
| 894 | let picked = /** @type {TbPicked | null} */ (null); |
| 895 | |
| 896 | /** Why the panel is open, kept so switching format doesn't erase it. */ |
| 897 | let pickedProblem = ""; |
| 898 | |
| 899 | // XPath by default: it always exists, it addresses exactly one node, and it |
| 900 | // survives the class-name churn that a CSS selector built from a framework's |
| 901 | // generated class names does not. |
| 902 | let pickedFormat = /** @type {TbPickedFormat} */ ("xpath"); |
| 903 | |
| 904 | // Ordered by how often they're the one you want. |
| 905 | /** @type {[TbPickedFormat, string][]} */ |
| 906 | const FORMATS = [ |
| 907 | ["xpath", "XPath"], |
| 908 | ["css", "CSS"], |
| 909 | ["id", "id"], |
| 910 | ["testid", "test id"], |
| 911 | ["text", "text"], |
| 912 | ["href", "href"], |
| 913 | ]; |
| 914 | |
| 915 | async function activePickTab() { |
| 916 | const [tab] = await api.tabs.query({ active: true, currentWindow: true }); |
| 917 | return tab; |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * `https://example.com/*` — the narrowest pattern that covers this page. |
| 922 | * @param {string | undefined} url |
| 923 | */ |
| 924 | function originPattern(url) { |
| 925 | if (!url) return null; |
| 926 | try { |
| 927 | return `${new URL(url).origin}/*`; |
| 928 | } catch { |
| 929 | return null; |
| 930 | } |
| 931 | } |
| 932 | |
| 933 | /** |
| 934 | * @param {string} text |
| 935 | * @param {string} [bad] a warning to show alongside it |
| 936 | */ |
| 937 | function pickNote(text, bad) { |
| 938 | // Loud enough to notice without opening the log: the picker failing silently |
| 939 | // is the whole reason this feature felt broken. |
| 940 | $("picked").hidden = false; |
| 941 | $("picked-value").textContent = text; |
| 942 | $("picked-warn").hidden = !bad; |
| 943 | $("picked-warn").textContent = bad ?? ""; |
| 944 | $("picked-grant").hidden = true; |
| 945 | log(text); |
| 946 | } |
| 947 | |
| 948 | /** |
| 949 | * Offer a per-site grant rather than shipping a blanket <all_urls> permission. |
| 950 | * |
| 951 | * localhost is granted up front because it's your own machine; everything else |
| 952 | * is opt-in, one origin at a time, via a prompt the browser shows. |
| 953 | * |
| 954 | * @param {string} pattern |
| 955 | * @param {number | undefined} tabId |
| 956 | */ |
| 957 | function offerGrant(pattern, tabId) { |
| 958 | $("picked").hidden = false; |
| 959 | $("picked-value").textContent = `No access to ${pattern}`; |
| 960 | $("picked-warn").hidden = false; |
| 961 | $("picked-warn").textContent = |
| 962 | "Grant access to this site, or use Alt+Shift+P which needs no permission."; |
| 963 | const btn = $("picked-grant"); |
| 964 | btn.hidden = false; |
| 965 | btn.textContent = `Allow ${pattern}`; |
| 966 | btn.onclick = async () => { |
| 967 | // Must be called from a user gesture, which this click is. |
| 968 | const granted = await api.permissions.request({ origins: [pattern] }); |
| 969 | if (granted) { |
| 970 | btn.hidden = true; |
| 971 | log(`granted ${pattern}`); |
| 972 | runPick(tabId); |
| 973 | } else { |
| 974 | log(`declined ${pattern}`); |
| 975 | } |
| 976 | }; |
| 977 | } |
| 978 | |
| 979 | /** |
| 980 | * The capture the picker wants is the one permission a per-origin grant cannot |
| 981 | * buy. `tabs.captureVisibleTab` accepts exactly two things: the `activeTab` |
| 982 | * grant a keyboard command mints, or a host permission set that contains the |
| 983 | * literal `<all_urls>` pattern. A per-origin grant fails the check, and so does |
| 984 | * the all-scheme-wildcard pattern in optional_host_permissions, which misses |
| 985 | * `file:` and so isn't "all". That is why picking from the panel button used to |
| 986 | * hand back a selector and no image on every site you'd approved. |
| 987 | * |
| 988 | * @param {string} reason the failure copyPickedShot reported |
| 989 | */ |
| 990 | function isCapturePermissionError(reason) { |
| 991 | return /all_urls|activeTab/i.test(reason); |
| 992 | } |
| 993 | |
| 994 | /** |
| 995 | * Offer the one grant that makes the panel button capture, alongside a pick |
| 996 | * that already succeeded. Screenshots stay opt-in: nothing here is requested |
| 997 | * until the button is pressed, and Alt+Shift+P keeps working without it. |
| 998 | * |
| 999 | * @param {string} reason |
| 1000 | */ |
| 1001 | function offerCaptureGrant(reason) { |
| 1002 | const btn = /** @type {HTMLButtonElement} */ ($("picked-grant")); |
| 1003 | btn.hidden = false; |
| 1004 | btn.textContent = "Allow screenshots on all sites"; |
| 1005 | btn.onclick = async () => { |
| 1006 | // Must be called from a user gesture, which this click is. |
| 1007 | const granted = await api.permissions.request({ origins: ["<all_urls>"] }); |
| 1008 | if (!granted) { |
| 1009 | log("declined <all_urls>"); |
| 1010 | return; |
| 1011 | } |
| 1012 | btn.hidden = true; |
| 1013 | log("granted <all_urls>"); |
| 1014 | // The shot that prompted this is long gone from the viewport's timeline; |
| 1015 | // re-picking is the honest way to get one, so say so rather than silently |
| 1016 | // leaving the old warning up. |
| 1017 | pickedProblem = "Screenshots are on. Pick again to get one."; |
| 1018 | refreshPicked(); |
| 1019 | }; |
| 1020 | log(`screenshot needs <all_urls>: ${reason}`); |
| 1021 | } |
| 1022 | |
| 1023 | const SKIP_URL = /^(chrome|about|edge|moz-extension|chrome-extension|view-source|devtools):/; |
| 1024 | |
| 1025 | // The tab a pick is currently running in, or null. Also the "is picking" flag. |
| 1026 | let pickTabId = /** @type {number | null | undefined} */ (null); |
| 1027 | |
| 1028 | /** |
| 1029 | * Cancel an in-flight pick. |
| 1030 | * |
| 1031 | * picker.js parks its cleanup function on `window.__tbPickerActive`, so we |
| 1032 | * re-enter the page and call it. That resolves the original promise with null, |
| 1033 | * which unwinds runPick exactly as a user Escape would. |
| 1034 | */ |
| 1035 | async function cancelPick() { |
| 1036 | const tabId = pickTabId; |
| 1037 | if (tabId == null) return; |
| 1038 | try { |
| 1039 | await api.scripting.executeScript({ |
| 1040 | target: { tabId }, |
| 1041 | func: () => { |
| 1042 | if (window.__tbPickerActive) window.__tbPickerActive(); |
| 1043 | }, |
| 1044 | }); |
| 1045 | } catch { |
| 1046 | // Tab closed or navigated; the picker went with it. |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | /** |
| 1051 | * Run a pick in `tabId`. Returns true on success, or a message explaining why |
| 1052 | * the injection failed. |
| 1053 | * |
| 1054 | * @param {number | undefined} tabId |
| 1055 | * @returns {Promise<true | string>} |
| 1056 | */ |
| 1057 | async function runPick(tabId) { |
| 1058 | const btn = $("pick"); |
| 1059 | pickTabId = tabId; |
| 1060 | btn.classList.add("active"); |
| 1061 | setStatus("pending", "pick mode — click an element, Esc cancels"); |
| 1062 | try { |
| 1063 | const results = await api.scripting.executeScript({ |
| 1064 | target: { tabId }, |
| 1065 | func: tbPickElement, |
| 1066 | }); |
| 1067 | const value = results?.[0]?.result ?? null; |
| 1068 | if (value) { |
| 1069 | const shot = await Shot.copyPickedShot(api, tabId, value); |
| 1070 | await deliverPick(value, shot); |
| 1071 | } else log("pick cancelled"); |
| 1072 | return true; |
| 1073 | } catch (e) { |
| 1074 | return e instanceof Error ? e.message : String(e); |
| 1075 | } finally { |
| 1076 | pickTabId = null; |
| 1077 | btn.classList.remove("active"); |
| 1078 | refreshStatus(); |
| 1079 | } |
| 1080 | } |
| 1081 | |
| 1082 | $("pick").addEventListener("click", async () => { |
| 1083 | // Second press toggles it back off rather than doing nothing. |
| 1084 | if (pickTabId != null) { |
| 1085 | await cancelPick(); |
| 1086 | return; |
| 1087 | } |
| 1088 | |
| 1089 | const [tab] = await api.tabs.query({ active: true, currentWindow: true }); |
| 1090 | if (!tab || SKIP_URL.test(tab.url ?? "")) { |
| 1091 | pickNote( |
| 1092 | "Can't pick here.", |
| 1093 | "Browser-internal and extension pages are off limits to all extensions. Switch to a normal web page.", |
| 1094 | ); |
| 1095 | return; |
| 1096 | } |
| 1097 | |
| 1098 | setStatus("pending", "pick mode — click an element, Esc cancels"); |
| 1099 | const outcome = await runPick(tab.id); |
| 1100 | if (outcome === true) return; |
| 1101 | |
| 1102 | // The failure is nearly always a missing host permission for this origin. |
| 1103 | const pattern = originPattern(tab.url); |
| 1104 | if (pattern && /permission|access/i.test(outcome)) { |
| 1105 | offerGrant(pattern, tab.id); |
| 1106 | } else { |
| 1107 | pickNote("Couldn't reach the page.", `Try Alt+Shift+P instead. [${outcome}]`); |
| 1108 | } |
| 1109 | }); |
| 1110 | |
| 1111 | // Escape from the sidebar too. The picker handles Escape itself, but only when |
| 1112 | // the page has keyboard focus — if you started the pick from here, focus is |
| 1113 | // still in the panel and the key never reaches the page. |
| 1114 | window.addEventListener("keydown", (e) => { |
| 1115 | // Font shortcuts work anywhere in the panel, not just with the terminal |
| 1116 | // focused. xterm.js consumes its own keydowns before they reach here, so it |
| 1117 | // has its own handler for these. |
| 1118 | if (handleFontKey(e)) return; |
| 1119 | if (e.key !== "Escape") return; |
| 1120 | if (openMenu) { |
| 1121 | e.preventDefault(); |
| 1122 | closeTabMenu(); |
| 1123 | return; |
| 1124 | } |
| 1125 | if (pickTabId != null) { |
| 1126 | e.preventDefault(); |
| 1127 | cancelPick(); |
| 1128 | } |
| 1129 | }); |
| 1130 | |
| 1131 | // Results arriving from the background worker (the keyboard-shortcut path). |
| 1132 | // |
| 1133 | // Guarded: content scripts always have `sender.tab` set, so rejecting those |
| 1134 | // leaves only our own extension pages and worker. This is the one inbound |
| 1135 | // message path in the sidebar, and it exists solely because the shortcut has to |
| 1136 | // be handled in the background. |
| 1137 | api.runtime.onMessage.addListener((msg, sender) => { |
| 1138 | if (sender?.id !== api.runtime.id) return; |
| 1139 | if (sender?.tab) return; |
| 1140 | if (msg?.type === "picked" && msg.value) { |
| 1141 | // The worker owns the screenshot on this path: it holds the activeTab |
| 1142 | // grant the shortcut just minted, and the clipboard write has to happen |
| 1143 | // while the page it captured is still the focused one. |
| 1144 | deliverPick(msg.value, msg.shot === true ? true : msg.shot || "not captured"); |
| 1145 | } |
| 1146 | }); |
| 1147 | |
| 1148 | // A pick made while the sidebar was closed is parked in storage. Nothing is |
| 1149 | // typed for these: the terminal has moved on, and whatever screenshot went with |
| 1150 | // it left the clipboard long ago. Show it and let the user decide. |
| 1151 | storage.get("pendingPick").then((v) => { |
| 1152 | if (v.pendingPick) { |
| 1153 | showPicked(v.pendingPick); |
| 1154 | storage.remove("pendingPick"); |
| 1155 | } |
| 1156 | }); |
| 1157 | |
| 1158 | function currentPickedRaw() { |
| 1159 | if (!picked) return ""; |
| 1160 | return picked[pickedFormat] ?? ""; |
| 1161 | } |
| 1162 | |
| 1163 | /** |
| 1164 | * Open the panel on a pick. Only called when the pick needs the user's |
| 1165 | * attention — see deliverPick. |
| 1166 | * |
| 1167 | * @param {TbPicked} value everything in here is page-controlled |
| 1168 | * @param {string} [problem] why the panel is opening |
| 1169 | */ |
| 1170 | function showPicked(value, problem) { |
| 1171 | picked = value; |
| 1172 | $("picked-warn").hidden = true; |
| 1173 | $("picked-grant").hidden = true; |
| 1174 | |
| 1175 | $("picked-tag").textContent = value.tag ? `<${value.tag}>` : "?"; |
| 1176 | $("picked-meta").textContent = value.text || value.href || value.pageUrl || ""; |
| 1177 | $("picked-meta").title = value.pageUrl || ""; |
| 1178 | |
| 1179 | // Only offer formats this element actually has — an empty tab is a dead end. |
| 1180 | const available = FORMATS.filter(([key]) => value[key]); |
| 1181 | if (!available.some(([key]) => key === pickedFormat)) { |
| 1182 | pickedFormat = available[0]?.[0] ?? "css"; |
| 1183 | } |
| 1184 | |
| 1185 | const bar = $("picked-formats"); |
| 1186 | bar.innerHTML = ""; |
| 1187 | for (const [key, label] of available) { |
| 1188 | const b = document.createElement("button"); |
| 1189 | b.type = "button"; |
| 1190 | b.textContent = label; |
| 1191 | b.setAttribute("role", "tab"); |
| 1192 | b.setAttribute("aria-selected", String(key === pickedFormat)); |
| 1193 | b.addEventListener("click", () => { |
| 1194 | pickedFormat = key; |
| 1195 | for (const other of bar.children) { |
| 1196 | other.setAttribute("aria-selected", String(other === b)); |
| 1197 | } |
| 1198 | refreshPicked(); |
| 1199 | }); |
| 1200 | bar.appendChild(b); |
| 1201 | } |
| 1202 | |
| 1203 | pickedProblem = problem ?? ""; |
| 1204 | $("picked").hidden = false; |
| 1205 | refreshPicked(); |
| 1206 | } |
| 1207 | |
| 1208 | function refreshPicked() { |
| 1209 | const raw = currentPickedRaw(); |
| 1210 | const el = $("picked-value"); |
| 1211 | el.textContent = raw || "not present on this element"; |
| 1212 | el.classList.toggle("empty", !raw); |
| 1213 | |
| 1214 | const { removedControl, truncated } = Sanitize.forTerminal(raw); |
| 1215 | const notes = []; |
| 1216 | if (removedControl) notes.push("control characters removed"); |
| 1217 | if (truncated) notes.push("truncated"); |
| 1218 | const warn = $("picked-warn"); |
| 1219 | const modified = notes.length ? `Modified before use: ${notes.join(", ")}.` : ""; |
| 1220 | warn.textContent = [pickedProblem, modified].filter(Boolean).join(" "); |
| 1221 | warn.hidden = !warn.textContent; |
| 1222 | |
| 1223 | /** @type {HTMLButtonElement} */ ($("picked-insert")).disabled = !raw; |
| 1224 | } |
| 1225 | |
| 1226 | $("picked-close").addEventListener("click", () => { |
| 1227 | $("picked").hidden = true; |
| 1228 | picked = null; |
| 1229 | }); |
| 1230 | |
| 1231 | $("picked-copy").addEventListener("click", async () => { |
| 1232 | await navigator.clipboard.writeText(Sanitize.forClipboard(currentPickedRaw())); |
| 1233 | log("copied to clipboard"); |
| 1234 | }); |
| 1235 | |
| 1236 | /** |
| 1237 | * Send the pick to the terminal: the screenshot first, then the selector. |
| 1238 | * |
| 1239 | * The screenshot is already on the system clipboard by the time this runs, so |
| 1240 | * "sending" it is a literal ^V. That byte is not a paste as far as this panel |
| 1241 | * is concerned — xterm.js never sees it — it goes down the wire, and an agent |
| 1242 | * on the other end that handles image paste (Claude Code does) reads the |
| 1243 | * clipboard itself and attaches the PNG. In a bare shell ^V is literal-next |
| 1244 | * instead, which is why it is only sent when there is an image to fetch. |
| 1245 | * |
| 1246 | * @param {boolean} withShot |
| 1247 | */ |
| 1248 | async function insertPicked(withShot) { |
| 1249 | if (!connected || !ws) { |
| 1250 | log("not connected"); |
| 1251 | return; |
| 1252 | } |
| 1253 | const { text } = Sanitize.forTerminal(currentPickedRaw()); |
| 1254 | if (withShot) { |
| 1255 | ws.send(enc.encode("\x16")); |
| 1256 | // Reading the clipboard is a round trip out to a helper process on the |
| 1257 | // agent's side. Text sent in the same breath can arrive first and end up |
| 1258 | // ahead of the attachment on the line. |
| 1259 | await new Promise((r) => setTimeout(r, 250)); |
| 1260 | ws.send(enc.encode(" ")); |
| 1261 | } |
| 1262 | // No trailing newline, ever. The user presses Enter themselves. |
| 1263 | ws.send(enc.encode(text)); |
| 1264 | term.focus(); |
| 1265 | log(withShot ? `inserted screenshot + ${text.length} chars` : `inserted ${text.length} chars`); |
| 1266 | } |
| 1267 | |
| 1268 | /** |
| 1269 | * What a fresh pick does: type it into the terminal, and stay out of the way. |
| 1270 | * |
| 1271 | * The panel is deliberately *not* opened on the happy path. It shifts the |
| 1272 | * terminal down the moment you pick something, which is a poor trade when the |
| 1273 | * result has already been typed where you were looking. It opens only when |
| 1274 | * there is something to decide — no connection, or no screenshot — and then it |
| 1275 | * carries the reason. |
| 1276 | * |
| 1277 | * @param {TbPicked} value page-controlled, all of it |
| 1278 | * @param {true | string} shot true, or why there is no screenshot |
| 1279 | */ |
| 1280 | async function deliverPick(value, shot) { |
| 1281 | picked = value; |
| 1282 | log(`picked ${value.tag} on ${value.pageUrl}`); |
| 1283 | log(shot === true ? "screenshot on clipboard, sending ^V" : `no screenshot: ${shot}`); |
| 1284 | |
| 1285 | const needsGrant = shot !== true && isCapturePermissionError(shot); |
| 1286 | |
| 1287 | if (!connected || !ws) { |
| 1288 | showPicked(value, "Not connected — nothing was typed."); |
| 1289 | if (needsGrant) offerCaptureGrant(shot); |
| 1290 | return; |
| 1291 | } |
| 1292 | await insertPicked(shot === true); |
| 1293 | if (shot !== true) { |
| 1294 | showPicked( |
| 1295 | value, |
| 1296 | needsGrant |
| 1297 | ? "Selector only. Screenshots from this button need access to all sites; Alt+Shift+P needs none." |
| 1298 | : `Selector only, no screenshot: ${shot}`, |
| 1299 | ); |
| 1300 | if (needsGrant) offerCaptureGrant(shot); |
| 1301 | } |
| 1302 | } |
| 1303 | |
| 1304 | $("picked-insert").addEventListener("click", () => insertPicked(false)); |
| 1305 | |
| 1306 | // Keystrokes out as binary, so nothing is lost to UTF-8 round-tripping. |
| 1307 | term.onData((data) => { |
| 1308 | if (connected && ws) ws.send(enc.encode(data)); |
| 1309 | }); |
| 1310 | term.onBinary((data) => { |
| 1311 | if (!connected || !ws) return; |
| 1312 | const buf = new Uint8Array(data.length); |
| 1313 | for (let i = 0; i < data.length; i++) buf[i] = data.charCodeAt(i) & 255; |
| 1314 | ws.send(buf); |
| 1315 | }); |
| 1316 | |
| 1317 | new ResizeObserver(() => { |
| 1318 | fit.fit(); |
| 1319 | sendSize(); |
| 1320 | }).observe($("term")); |
| 1321 | |
| 1322 | // --- settings / persistence ------------------------------------------------- |
| 1323 | |
| 1324 | const themeSelect = $select("theme-select"); |
| 1325 | themeSelect.addEventListener("change", () => setTheme(themeSelect.value)); |
| 1326 | const densitySelect = $select("density-select"); |
| 1327 | densitySelect.addEventListener("change", () => setDensity(densitySelect.value)); |
| 1328 | |
| 1329 | $("font-smaller").addEventListener("click", () => setFontSize(fontSize - 1)); |
| 1330 | $("font-bigger").addEventListener("click", () => setFontSize(fontSize + 1)); |
| 1331 | $("font-reset").addEventListener("click", () => setFontSize(FONT_DEFAULT)); |
| 1332 | |
| 1333 | $("settings-toggle").addEventListener("click", () => { |
| 1334 | $("settings").hidden = !$("settings").hidden; |
| 1335 | }); |
| 1336 | $("reconnect").addEventListener("click", connect); |
| 1337 | $("connect").addEventListener("click", connect); |
| 1338 | $("trust-cert").addEventListener("click", () => { |
| 1339 | const u = new URL($input("url").value.trim()); |
| 1340 | api.tabs.create({ url: `https://${u.host}/` }); |
| 1341 | }); |
| 1342 | $("copy-origin").addEventListener("click", () => |
| 1343 | navigator.clipboard.writeText(`termbridge pair ${ORIGIN}`), |
| 1344 | ); |
| 1345 | const tokenInput = $input("token"); |
| 1346 | const urlInput = $input("url"); |
| 1347 | const revealBox = $input("reveal"); |
| 1348 | revealBox.addEventListener("change", () => { |
| 1349 | tokenInput.type = revealBox.checked ? "text" : "password"; |
| 1350 | }); |
| 1351 | tokenInput.addEventListener("change", () => |
| 1352 | storage.set({ token: tokenInput.value.trim() }), |
| 1353 | ); |
| 1354 | urlInput.addEventListener("change", () => storage.set({ url: urlInput.value.trim() })); |
| 1355 | |
| 1356 | storage.get(["token", "url", "session", "theme", "density", "fontSize", "pins"]).then((v) => { |
| 1357 | if (v.pins && typeof v.pins === "object") pins = v.pins; |
| 1358 | themePref = Themes.PREFERENCES.includes(v.theme) ? v.theme : "auto"; |
| 1359 | density = DENSITIES[v.density] ? v.density : "normal"; |
| 1360 | const stored = Number(v.fontSize); |
| 1361 | fontSize = |
| 1362 | Number.isFinite(stored) && stored >= FONT_MIN && stored <= FONT_MAX |
| 1363 | ? Math.round(stored) |
| 1364 | : FONT_DEFAULT; |
| 1365 | applyTheme(); |
| 1366 | applyDensity(); |
| 1367 | applyFontSize(); |
| 1368 | if (v.token) $input("token").value = v.token; |
| 1369 | if (v.url) $input("url").value = v.url; |
| 1370 | if (v.session) $input("session").value = v.session; |
| 1371 | log(`origin: ${ORIGIN}`); |
| 1372 | if (v.token) { |
| 1373 | connect(); |
| 1374 | } else { |
| 1375 | setStatus("off", "needs setup"); |
| 1376 | $("settings").hidden = false; |
| 1377 | term.write( |
| 1378 | "\x1b[90m terminal\x1b[0m\r\n\r\n" + |
| 1379 | " Not configured yet. Open \x1b[1msettings\x1b[0m (top right)\r\n" + |
| 1380 | " to pair and paste your token.\r\n", |
| 1381 | ); |
| 1382 | } |
| 1383 | }); |