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Codeman/src/web/public/app.js
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Ark0N aaf22909bc Merge pull request #306 from Ark0N/feat/file-path-links
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/**
* @fileoverview Core UI controller for Codeman — tab-based terminal manager with xterm.js.
*
* Defines the CodemanApp class (constructor, init, SSE connection, session lifecycle, tabs,
* navigation). Domain-specific methods are mixed in from separate modules via Object.assign:
*
* terminal-ui.js — Terminal setup, rendering pipeline, controls
* respawn-ui.js — Respawn banner, countdown timers, presets, run summary
* ralph-panel.js — Ralph state panel, fix_plan, plan versioning
* settings-ui.js — App settings, visibility, web push, lifecycle log, tunnel/QR, help
* panels-ui.js — Subagent panel, agent teams, project insights, file browser, log viewer,
* image popups, monitor, token stats, toast, system stats
* session-ui.js — Quick start, session options modal, case settings, mobile case picker
* ralph-wizard.js — Ralph Loop wizard modal
* api-client.js — API helper methods (fetch wrappers)
* subagent-windows.js — Floating subagent terminal windows
*
* ═══ Sections in this file ═══
*
* SSE Handler Map — Event-to-method routing table (resolves at runtime via `this`)
* CodemanApp Class — Constructor and all state initialization (~80 properties)
* Pending Hooks — Hook state machine for tab alerts
* Init — App bootstrap, mobile setup, WebGL init
* Event Listeners — Keyboard shortcuts, resize, beforeunload
* SSE Connection — connectSSE with exponential backoff (1-30s)
* Core SSE Event Handlers — Session lifecycle, scheduled runs (~20 handlers)
* Connection Status — Online detection, input queuing, state sync
* WebSocket Terminal I/O — Low-latency WS bypass for terminal input
* Session Tabs — Tab rendering, selection, drag-and-drop reordering
* Tab Order & Drag-and-Drop — Persistent ordering with localStorage sync
* Session Lifecycle — Select, close, navigate, rename, cleanup
* Navigation — goHome
* Kill Sessions — Kill active/all sessions
* Timer / Tokens — Session timer, token/cost display
* Module Init — localStorage migration, app instantiation
*
* @class CodemanApp
* @globals {CodemanApp} app - Singleton instance (also on window.app)
*
* @dependency constants.js (SSE_EVENTS, timing constants, escapeHtml, DEC_SYNC_STRIP_RE)
* @dependency mobile-handlers.js (MobileDetection, KeyboardHandler, SwipeHandler)
* @dependency voice-input.js (VoiceInput, DeepgramProvider)
* @dependency notification-manager.js (NotificationManager class)
* @dependency keyboard-accessory.js (KeyboardAccessoryBar, FocusTrap)
* @dependency vendor/xterm.js, vendor/xterm-addon-fit.js, vendor/xterm-addon-webgl.js
* @dependency vendor/xterm-zerolag-input.iife.js (LocalEchoOverlay)
* @loadorder 6 of 15 — loaded after keyboard-accessory.js, before terminal-ui.js
*/
// Codeman App - Tab-based Terminal UI
// Constants, utilities, and escapeHtml() are in constants.js (loaded before this file)
// MobileDetection, KeyboardHandler, SwipeHandler are in mobile-handlers.js
// DeepgramProvider, VoiceInput are in voice-input.js
// ═══════════════════════════════════════════════════════════════
// Global Error & Performance Diagnostics
// ═══════════════════════════════════════════════════════════════
// Writes breadcrumbs to localStorage so they survive tab freezes.
// After a crash, check: localStorage.getItem('codeman-crash-diag')
const _crashDiag = {
_entries: [],
_maxEntries: 50,
// Per-page-load id: the server keys beacons by it, so a reload (fresh id)
// archives the previous page's trail instead of overwriting it, and
// concurrent clients (desktop + phone) don't clobber each other.
_pageId: Date.now().toString(36) + '-' + Math.random().toString(36).slice(2, 8),
log(msg) {
const entry = `${new Date().toISOString().slice(11,23)} ${msg}`;
this._entries.push(entry);
if (this._entries.length > this._maxEntries) this._entries.shift();
try { localStorage.setItem('codeman-crash-diag', this._entries.join('\n')); } catch {}
}
};
// Log previous crash breadcrumbs on startup, and re-beacon them under a
// distinct page id — an iOS PWA reload wipes the in-memory trail, and without
// this the fresh page's first beacon would be all the server ever sees.
try {
const prev = localStorage.getItem('codeman-crash-diag');
if (prev) {
console.log('[CRASH-DIAG] Previous session breadcrumbs:\n' + prev);
navigator.sendBeacon('/api/crash-diag', JSON.stringify({ data: prev, id: _crashDiag._pageId + '-prev' }));
}
} catch {}
_crashDiag.log('PAGE LOAD');
// Heartbeat: send breadcrumbs to server every 2s so they survive tab freezes.
function _crashDiagBeacon() {
try {
if (_crashDiag._entries.length > 0) {
navigator.sendBeacon('/api/crash-diag', JSON.stringify({ data: _crashDiag._entries.join('\n'), id: _crashDiag._pageId }));
}
} catch {}
}
setInterval(() => {
try { localStorage.setItem('codeman-crash-heartbeat', String(Date.now())); } catch {}
_crashDiagBeacon();
}, 2000);
// iOS suspends JS the instant the app is backgrounded — entries logged since
// the last 2s tick would sit unsent until (if ever) the page resumes. Flush
// immediately on hide so a repro right before an app switch is never lost.
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') _crashDiagBeacon();
});
window.addEventListener('error', (e) => {
_crashDiag.log(`ERROR: ${e.message} at ${e.filename}:${e.lineno}`);
console.error('[CRASH-DIAG] Uncaught error:', e.message, '\n File:', e.filename, ':', e.lineno, ':', e.colno, '\n Stack:', e.error?.stack);
});
window.addEventListener('unhandledrejection', (e) => {
_crashDiag.log(`UNHANDLED: ${e.reason?.message || e.reason}`);
console.error('[CRASH-DIAG] Unhandled promise rejection:', e.reason?.message || e.reason, '\n Stack:', e.reason?.stack);
});
// Detect long tasks (>50ms main thread blocks) — these cause "page unresponsive"
if (typeof PerformanceObserver !== 'undefined') {
try {
const longTaskObserver = new PerformanceObserver((list) => {
for (const entry of list.getEntries()) {
if (entry.duration > 200) {
_crashDiag.log(`LONG_TASK: ${entry.duration.toFixed(0)}ms`);
console.warn(`[CRASH-DIAG] Long task: ${entry.duration.toFixed(0)}ms (type: ${entry.entryType}, name: ${entry.name})`);
}
}
});
longTaskObserver.observe({ type: 'longtask', buffered: true });
} catch { /* longtask not supported */ }
}
// Track WebGL context loss/restore events on all canvases
const _origGetContext = HTMLCanvasElement.prototype.getContext;
HTMLCanvasElement.prototype.getContext = function(type, ...args) {
const ctx = _origGetContext.call(this, type, ...args);
if (type === 'webgl2' || type === 'webgl') {
this.addEventListener('webglcontextlost', (e) => {
_crashDiag.log(`WEBGL_LOST: ${this.width}x${this.height}`);
console.error('[CRASH-DIAG] WebGL context LOST on canvas', this.width, 'x', this.height, '— prevented:', e.defaultPrevented);
});
this.addEventListener('webglcontextrestored', () => {
_crashDiag.log('WEBGL_RESTORED');
console.warn('[CRASH-DIAG] WebGL context restored');
});
}
return ctx;
};
// ═══════════════════════════════════════════════════════════════
// SSE Handler Map — event-to-method routing table
// ═══════════════════════════════════════════════════════════════
// connectSSE() iterates this array to register all listeners in a single loop.
// Omitted no-op events (registered by server but unused in UI):
// respawn:stepSent, respawn:aiCheckStarted, respawn:aiCheckCompleted,
// respawn:aiCheckFailed, respawn:aiCheckCooldown
const _SSE_HANDLER_MAP = [
// Core
[SSE_EVENTS.INIT, '_onInit'],
// Session lifecycle
[SSE_EVENTS.SESSION_CREATED, '_onSessionCreated'],
[SSE_EVENTS.SESSION_UPDATED, '_onSessionUpdated'],
[SSE_EVENTS.SESSION_DELETED, '_onSessionDeleted'],
[SSE_EVENTS.SESSION_TERMINAL, '_onSSETerminal'],
[SSE_EVENTS.SESSION_NEEDS_REFRESH, '_onSSENeedsRefresh'],
[SSE_EVENTS.SESSION_CLEAR_TERMINAL, '_onSSEClearTerminal'],
[SSE_EVENTS.SESSION_COMPLETION, '_onSessionCompletion'],
[SSE_EVENTS.SESSION_ERROR, '_onSessionError'],
[SSE_EVENTS.SESSION_EXIT, '_onSessionExit'],
[SSE_EVENTS.SESSION_IDLE, '_onSessionIdle'],
[SSE_EVENTS.SESSION_WORKING, '_onSessionWorking'],
[SSE_EVENTS.SESSION_AUTO_CLEAR, '_onSessionAutoClear'],
[SSE_EVENTS.SESSION_LIMIT_PAUSE_SCHEDULED, '_onSessionLimitPauseScheduled'],
[SSE_EVENTS.SESSION_LIMIT_RESUME, '_onSessionLimitResume'],
[SSE_EVENTS.SESSION_LIMIT_RESUME_CANCELLED, '_onSessionLimitResumeCancelled'],
[SSE_EVENTS.SESSION_RESPAWN_BREAKER_TRIPPED, '_onSessionRespawnBreakerTripped'],
[SSE_EVENTS.SESSION_CLI_INFO, '_onSessionCliInfo'],
[SSE_EVENTS.SESSION_STATUS_TELEMETRY, '_onSessionStatusTelemetry'],
// Scheduled runs
[SSE_EVENTS.SCHEDULED_CREATED, '_onScheduledCreated'],
[SSE_EVENTS.SCHEDULED_UPDATED, '_onScheduledUpdated'],
[SSE_EVENTS.SCHEDULED_COMPLETED, '_onScheduledCompleted'],
[SSE_EVENTS.SCHEDULED_STOPPED, '_onScheduledStopped'],
// Scheduled jobs (cron-style scheduler)
[SSE_EVENTS.CRON_JOBS_CHANGED, '_onCronJobsChanged'],
[SSE_EVENTS.CRON_JOB_DELETED, '_onCronJobsChanged'],
[SSE_EVENTS.CRON_RUN_CREATED, '_onCronRunChanged'],
[SSE_EVENTS.CRON_RUN_UPDATED, '_onCronRunChanged'],
// Respawn
[SSE_EVENTS.RESPAWN_STARTED, '_onRespawnStarted'],
[SSE_EVENTS.RESPAWN_STOPPED, '_onRespawnStopped'],
[SSE_EVENTS.RESPAWN_STATE_CHANGED, '_onRespawnStateChanged'],
[SSE_EVENTS.RESPAWN_CYCLE_STARTED, '_onRespawnCycleStarted'],
[SSE_EVENTS.RESPAWN_BLOCKED, '_onRespawnBlocked'],
[SSE_EVENTS.RESPAWN_AUTO_ACCEPT_SENT, '_onRespawnAutoAcceptSent'],
[SSE_EVENTS.RESPAWN_DETECTION_UPDATE, '_onRespawnDetectionUpdate'],
[SSE_EVENTS.RESPAWN_TIMER_STARTED, '_onRespawnTimerStarted'],
[SSE_EVENTS.RESPAWN_TIMER_CANCELLED, '_onRespawnTimerCancelled'],
[SSE_EVENTS.RESPAWN_TIMER_COMPLETED, '_onRespawnTimerCompleted'],
[SSE_EVENTS.RESPAWN_ERROR, '_onRespawnError'],
[SSE_EVENTS.RESPAWN_ACTION_LOG, '_onRespawnActionLog'],
// Tasks
[SSE_EVENTS.TASK_CREATED, '_onTaskCreated'],
[SSE_EVENTS.TASK_COMPLETED, '_onTaskCompleted'],
[SSE_EVENTS.TASK_FAILED, '_onTaskFailed'],
[SSE_EVENTS.TASK_UPDATED, '_onTaskUpdated'],
// Mux (tmux)
[SSE_EVENTS.MUX_CREATED, '_onMuxCreated'],
[SSE_EVENTS.MUX_KILLED, '_onMuxKilled'],
[SSE_EVENTS.MUX_DIED, '_onMuxDied'],
[SSE_EVENTS.MUX_STATS_UPDATED, '_onMuxStatsUpdated'],
// Remote auto-reconnect (COD-108)
[SSE_EVENTS.REMOTE_SESSION_RECONNECTED, '_onRemoteSessionReconnected'],
[SSE_EVENTS.REMOTE_RECONNECT_EXHAUSTED, '_onRemoteReconnectExhausted'],
// Ralph
[SSE_EVENTS.SESSION_RALPH_LOOP_UPDATE, '_onRalphLoopUpdate'],
[SSE_EVENTS.SESSION_RALPH_TODO_UPDATE, '_onRalphTodoUpdate'],
[SSE_EVENTS.SESSION_RALPH_COMPLETION_DETECTED, '_onRalphCompletionDetected'],
[SSE_EVENTS.SESSION_RALPH_STATUS_UPDATE, '_onRalphStatusUpdate'],
[SSE_EVENTS.SESSION_CIRCUIT_BREAKER_UPDATE, '_onCircuitBreakerUpdate'],
[SSE_EVENTS.SESSION_EXIT_GATE_MET, '_onExitGateMet'],
// Bash tools
[SSE_EVENTS.SESSION_BASH_TOOL_START, '_onBashToolStart'],
[SSE_EVENTS.SESSION_BASH_TOOL_END, '_onBashToolEnd'],
[SSE_EVENTS.SESSION_BASH_TOOLS_UPDATE, '_onBashToolsUpdate'],
// Hooks (Claude Code hook events)
[SSE_EVENTS.HOOK_IDLE_PROMPT, '_onHookIdlePrompt'],
[SSE_EVENTS.HOOK_PERMISSION_PROMPT, '_onHookPermissionPrompt'],
[SSE_EVENTS.HOOK_ELICITATION_DIALOG, '_onHookElicitationDialog'],
[SSE_EVENTS.HOOK_ELICITATION_COMPLETE, '_onHookElicitationComplete'],
[SSE_EVENTS.HOOK_ELICITATION_RESPONSE, '_onHookElicitationResponse'],
[SSE_EVENTS.HOOK_STOP, '_onHookStop'],
[SSE_EVENTS.HOOK_TEAMMATE_IDLE, '_onHookTeammateIdle'],
[SSE_EVENTS.HOOK_TASK_COMPLETED, '_onHookTaskCompleted'],
// Approvals Inbox (handlers in approvals-ui.js)
[SSE_EVENTS.APPROVAL_PENDING, '_onApprovalPending'],
[SSE_EVENTS.APPROVAL_UPDATED, '_onApprovalUpdated'],
[SSE_EVENTS.APPROVAL_RESOLVED, '_onApprovalResolved'],
// Subagents (Claude Code background agents)
[SSE_EVENTS.SUBAGENT_DISCOVERED, '_onSubagentDiscovered'],
[SSE_EVENTS.SUBAGENT_UPDATED, '_onSubagentUpdated'],
[SSE_EVENTS.SUBAGENT_TOOL_CALL, '_onSubagentToolCall'],
[SSE_EVENTS.SUBAGENT_PROGRESS, '_onSubagentProgress'],
[SSE_EVENTS.SUBAGENT_MESSAGE, '_onSubagentMessage'],
[SSE_EVENTS.SUBAGENT_TOOL_RESULT, '_onSubagentToolResult'],
[SSE_EVENTS.SUBAGENT_COMPLETED, '_onSubagentCompleted'],
// Workflow runs (ultracode)
[SSE_EVENTS.WORKFLOW_RUN_DISCOVERED, '_onWorkflowRunDiscovered'],
[SSE_EVENTS.WORKFLOW_RUN_UPDATED, '_onWorkflowRunUpdated'],
[SSE_EVENTS.WORKFLOW_RUN_REMOVED, '_onWorkflowRunRemoved'],
// Images
[SSE_EVENTS.IMAGE_DETECTED, '_onImageDetected'],
[SSE_EVENTS.ATTACHMENT_DETECTED, '_onAttachmentDetected'],
// Tunnel
[SSE_EVENTS.TUNNEL_STARTED, '_onTunnelStarted'],
[SSE_EVENTS.TUNNEL_STOPPED, '_onTunnelStopped'],
[SSE_EVENTS.TUNNEL_PROGRESS, '_onTunnelProgress'],
[SSE_EVENTS.TUNNEL_ERROR, '_onTunnelError'],
[SSE_EVENTS.TUNNEL_QR_ROTATED, '_onTunnelQrRotated'],
[SSE_EVENTS.TUNNEL_QR_REGENERATED, '_onTunnelQrRegenerated'],
[SSE_EVENTS.TUNNEL_QR_AUTH_USED, '_onTunnelQrAuthUsed'],
// Plan orchestration
[SSE_EVENTS.PLAN_SUBAGENT, '_onPlanSubagent'],
[SSE_EVENTS.PLAN_PROGRESS, '_onPlanProgress'],
[SSE_EVENTS.PLAN_STARTED, '_onPlanStarted'],
[SSE_EVENTS.PLAN_CANCELLED, '_onPlanCancelled'],
[SSE_EVENTS.PLAN_COMPLETED, '_onPlanCompleted'],
// Orchestrator loop
[SSE_EVENTS.ORCHESTRATOR_STATE_CHANGED, '_onOrchestratorStateChanged'],
[SSE_EVENTS.ORCHESTRATOR_PLAN_PROGRESS, '_onOrchestratorPlanProgress'],
[SSE_EVENTS.ORCHESTRATOR_PLAN_READY, '_onOrchestratorPlanReady'],
[SSE_EVENTS.ORCHESTRATOR_PHASE_STARTED, '_onOrchestratorPhaseStarted'],
[SSE_EVENTS.ORCHESTRATOR_PHASE_COMPLETED, '_onOrchestratorPhaseCompleted'],
[SSE_EVENTS.ORCHESTRATOR_PHASE_FAILED, '_onOrchestratorPhaseFailed'],
[SSE_EVENTS.ORCHESTRATOR_VERIFICATION, '_onOrchestratorVerification'],
[SSE_EVENTS.ORCHESTRATOR_TASK_ASSIGNED, '_onOrchestratorTaskAssigned'],
[SSE_EVENTS.ORCHESTRATOR_TASK_COMPLETED, '_onOrchestratorTaskCompleted'],
[SSE_EVENTS.ORCHESTRATOR_TASK_FAILED, '_onOrchestratorTaskFailed'],
[SSE_EVENTS.ORCHESTRATOR_COMPLETED, '_onOrchestratorCompleted'],
[SSE_EVENTS.ORCHESTRATOR_ERROR, '_onOrchestratorError'],
// Clipboard
[SSE_EVENTS.CLIPBOARD_WRITE, '_onClipboardWrite'],
// Session order (global tab order sync, COD-131)
[SSE_EVENTS.SESSION_ORDER_CHANGED, '_onSessionOrderChanged'],
// Web tabs (dashboard URLs)
[SSE_EVENTS.WEBVIEW_CHANGED, '_onWebviewChanged'],
];
// ═══════════════════════════════════════════════════════════════
// Session Name Prefix Parser
// ═══════════════════════════════════════════════════════════════
// Parses w<N>-<caseName> or s<N>-<caseName> prefix from session names.
// Returns { prefix, suffix } or null if name does not match the pattern.
function parseSessionPrefix(name) {
if (!name) return null;
const m = name.match(/^(w\d+-[a-zA-Z0-9_-]+|s\d+-[a-zA-Z0-9_-]+)/);
if (!m) return null;
const prefix = m[1];
const rest = name.slice(prefix.length);
if (rest === "") return { prefix, suffix: "" };
if (rest.startsWith(": ")) return { prefix, suffix: rest.slice(2) };
return null;
}
const DEFAULT_SHORTCUTS = [
{
id: 'show-shortcuts',
group: 'Panels',
label: 'Show Shortcuts',
bindings: [
{ modifiers: ['ctrl'], key: '?', code: 'Slash' },
{ modifiers: ['ctrl', 'shift'], key: '?' },
{ modifiers: ['alt'], key: '?', code: 'Slash' },
],
action: 'showShortcutOverlay',
},
{
id: 'close-session',
group: 'Session',
label: 'Close Session',
bindings: [{ modifiers: ['ctrl'], key: 'w' }],
action: 'killActiveSession',
},
{
id: 'next-session',
group: 'Session',
label: 'Next Session',
bindings: [{ modifiers: ['ctrl'], key: 'Tab' }],
action: 'nextSession',
},
{
id: 'clear-terminal',
group: 'Terminal',
label: 'Clear Terminal',
bindings: [{ modifiers: ['ctrl'], key: 'l' }],
action: 'clearTerminal',
},
{
id: 'copy-selection',
group: 'Terminal',
label: 'Copy Selection',
// Bindings match on `key`, not `code`: xterm decides which byte to emit from the
// PRODUCED character, so intercepting a physical KeyC that doesn't produce "c"
// would diverge from the chord that actually sends ^C.
bindings: [
{ modifiers: ['ctrl'], key: 'c' },
{ modifiers: ['ctrl', 'shift'], key: 'C' },
],
// Dispatched by shouldCopyTerminalSelectionFromShortcut() in terminal-ui.js and
// deliberately absent from SHORTCUT_ACTIONS: the generic capture loop always
// preventDefaults on a match, which would cost the user the interrupt key.
action: 'copyTerminalSelection',
},
{
id: 'increase-font',
group: 'Terminal',
label: 'Increase Font',
bindings: [
{ modifiers: ['ctrl'], key: '=', code: 'Equal' },
{ modifiers: ['ctrl'], key: '+', code: 'Equal' },
],
action: 'increaseFontSize',
},
{
id: 'decrease-font',
group: 'Terminal',
label: 'Decrease Font',
bindings: [{ modifiers: ['ctrl'], key: '-', code: 'Minus' }],
action: 'decreaseFontSize',
},
{
id: 'voice-input',
group: 'Terminal',
label: 'Voice Input',
bindings: [{ modifiers: ['ctrl', 'shift'], key: 'V' }],
action: 'toggleVoiceInput',
},
{
id: 'restore-terminal-size',
group: 'Terminal',
label: 'Restore Terminal Size',
bindings: [{ modifiers: ['ctrl', 'shift'], key: 'R' }],
action: 'restoreTerminalSize',
},
{
id: 'move-tab-left',
group: 'Tabs',
label: 'Move Active Tab Left',
bindings: [{ modifiers: ['ctrl', 'shift'], key: '{', code: 'BracketLeft' }],
action: 'moveActiveTabLeft',
},
{
id: 'move-tab-right',
group: 'Tabs',
label: 'Move Active Tab Right',
bindings: [{ modifiers: ['ctrl', 'shift'], key: '}', code: 'BracketRight' }],
action: 'moveActiveTabRight',
},
{
id: 'command-palette',
group: 'Session',
label: 'Find Open Session',
bindings: [
{ modifiers: ['ctrl'], key: 'k', code: 'KeyK' },
{ modifiers: ['meta'], key: 'k', code: 'KeyK' },
{ modifiers: ['alt'], key: 'k', code: 'KeyK' },
],
action: 'openCommandPalette',
},
{
id: 'toggle-session-sidebar',
group: 'Session',
label: 'Toggle Session Sidebar',
// Alt+B, not Ctrl+B: Ctrl+B must reach the terminal (tmux prefix,
// readline backward-char). The Alt block below claims only Digit1-9 and
// the brackets, and the registry claims Alt for KeyK and Slash only.
bindings: [{ modifiers: ['alt'], key: 'b', code: 'KeyB' }],
action: 'toggleSessionSidebar',
},
{
id: 'previous-next-session',
group: 'Session',
label: 'Previous / Next Session',
displayBindings: ['Alt/Option+[', 'Alt/Option+]'],
},
{
id: 'switch-tab-n',
group: 'Session',
label: 'Switch to Tab N',
displayBindings: ['Alt/Option+1-9'],
},
{
id: 'focus-tabs',
group: 'Tabs',
label: 'Focus Tabs',
displayBindings: ['ArrowLeft', 'ArrowRight', 'Home', 'End'],
},
{
id: 'activate-focused-tab',
group: 'Tabs',
label: 'Activate Focused Tab',
displayBindings: ['Enter', 'Space'],
},
{
id: 'insert-newline',
group: 'Terminal',
label: 'Insert Newline',
displayBindings: ['Shift+Enter', 'Ctrl+Enter'],
},
{
id: 'close-panels',
group: 'Panels',
label: 'Close Panels',
displayBindings: ['Escape'],
},
];
// ═══════════════════════════════════════════════════════════════
// CodemanApp Class — constructor and global state
// ═══════════════════════════════════════════════════════════════
class CodemanApp {
constructor() {
this.sessions = new Map();
this._shortIdCache = new Map(); // Cache session ID .slice(0, 8) results
this.sessionOrder = []; // Track tab order for drag-and-drop reordering
this.draggedTabId = null; // Currently dragged tab session ID
this.cases = [];
this.currentRun = null;
this.totalTokens = 0;
this.globalStats = null; // Global token/cost stats across all sessions
this.eventSource = null;
// Stable per-page client ID — lets the server target this connection
// for live filter updates (POST /api/events/subscribe) without forcing
// an SSE reconnect on session switches.
this._clientId = (typeof crypto !== 'undefined' && crypto.randomUUID)
? crypto.randomUUID()
: 'c-' + Math.random().toString(36).slice(2) + Date.now().toString(36);
// Per-TAB nonce for the WS registry key (COD-137). _loadReliableState()
// later replaces _clientId with the browser-wide localStorage identity
// (shared by every tab/window of this profile), so the WS upgrade sends
// `clientId:nonce` instead — a same-tab reconnect still supersedes its own
// socket, but two tabs on one session coexist instead of evicting each
// other in a 4010 ping-pong. Input frames keep the bare clientId for seq
// dedup.
this._wsTabNonce = this._clientId;
this.terminal = null;
this.fitAddon = null;
this.activeSessionId = null;
// ── Session detach / undock (beta) ───────────────────────────────────
// A "solo window" is a popped-out browser window showing exactly one
// session. Detected from the /session/:id URL path (robust even if a cached
// service-worker shell loads), with the server-injected global as a fallback.
this.soloSessionId = this._detectSoloSessionId();
this.isSoloWindow = !!this.soloSessionId;
this.detachedSessions = new Set(); // dashboard-side: ids currently popped out
this.detachedWindows = new Map(); // dashboard-side: id -> WindowProxy
this._detachWatchTimers = new Map(); // dashboard-side: id -> setInterval handle
this.windowChannel = null; // BroadcastChannel for cross-window sync
this._redockGrace = new Map(); // id -> timer: deferred redock (debounces popup reloads)
this._detachPingPending = null; // Set of ids awaiting a liveness answer
this._detachLivenessTimer = null; // periodic reconcile of channel-only detached windows
this._detachOrphanStrikes = new Map(); // id -> consecutive unanswered roll-calls (redock at 2)
this._initGeneration = 0; // dedup concurrent handleInit calls
this._initFallbackTimer = null; // fallback timer if SSE init doesn't arrive
this._selectGeneration = 0; // cancel stale selectSession loads
// Sessions whose full tmux scrollback has already been replayed this page load
// (COD-47). Tracked PER SESSION rather than as a single "first load" flag: the
// flag was consumed by whichever session auto-selected at page load, so every
// OTHER tab started life with one visible frame of history (issue #205).
this._fullHistoryLoaded = new Set();
// Cooldown per session for the scroll-to-top "load more history" re-pull.
this._fullHistoryRepullAt = new Map(); // Map<sessionId, timestamp>
this._fullHistoryRepullInFlight = false;
// Sessions whose last re-pull came back THINNER than the live buffer (a
// repaint-mode CLI pane, where tmux keeps no history of its own). The pull is
// refused for those and retried far more slowly — see _maybeRefetchFullHistory.
this._fullHistoryRepullUseless = new Set();
this.terminalLoadStates = new Map(); // Map<sessionId, { generation, phase }>
this.respawnStatus = {};
this.respawnTimers = {}; // Track timed respawn timers
this.respawnCountdownTimers = {}; // { sessionId: { timerName: { endsAt, totalMs, reason } } }
this.respawnActionLogs = {}; // { sessionId: [action, action, ...] } (max 20)
this.timerCountdownInterval = null; // Interval for updating countdown display
this.terminalBuffers = new Map(); // Store terminal content per session
this.editingSessionId = null; // Session being edited in options modal
this.pendingCloseSessionId = null; // Session pending close confirmation
this.muxSessions = []; // Screen sessions for process monitor
// Ralph loop/todo state per session
this.ralphStates = new Map(); // Map<sessionId, { loop, todos }>
// Subagent (Claude Code background agent) tracking
this.subagents = new Map(); // Map<agentId, SubagentInfo>
this.subagentActivity = new Map(); // Map<agentId, activity[]> - recent tool calls/progress
this.subagentToolResults = new Map(); // Map<agentId, Map<toolUseId, result>> - tool results by toolUseId
this.activeSubagentId = null; // Currently selected subagent for detail view
this.subagentPanelVisible = false;
// Ultracode / Workflow run visualization (master-detail tab)
this.workflowRuns = new Map(); // runId -> run summary (LEFT list)
this.workflowRunDetails = new Map(); // runId -> full run with agents[] (RIGHT pane)
this.activeWorkflowRunId = null;
this.activeWorkflowPhaseIndex = null;
// Ultracode floating run windows (additional to the dock panel — ultracode-windows.js)
this.ultracodeWindows = new Map(); // runId -> { element, parentSessionId, dragListeners, collapsed }
this.ultracodeWindowsClosed = new Set(); // runIds the user explicitly dismissed (don't re-pop)
this.ultracodeWindowCloseTimers = new Map(); // runId -> auto-close timeout
this.ultracodeWindowZIndex = 1000;
this.subagentWindows = new Map(); // Map<agentId, { element, position }>
this.subagentWindowZIndex = ZINDEX_SUBAGENT_BASE;
this.minimizedSubagents = new Map(); // Map<sessionId, Set<agentId>> - minimized to tab
this._subagentHideTimeout = null; // Timeout for hover-based dropdown hide
// PERSISTENT parent associations - agentId -> sessionId
// This is the SINGLE SOURCE OF TRUTH for which tab an agent window connects to.
// Once set, never recalculated. Persisted to localStorage and server.
this.subagentParentMap = new Map();
// Agent Teams tracking
this.teams = new Map(); // Map<teamName, TeamConfig>
this.teamTasks = new Map(); // Map<teamName, TeamTask[]>
this.teammateMap = new Map(); // Map<agentId-prefix, {name, color, teamName}> for quick lookup
// Teammate tmux pane terminals (Agent Teams feature)
this.teammatePanesByName = new Map(); // Map<name, { paneTarget, sessionId, color }>
this.teammateTerminals = new Map(); // Map<agentId, { terminal, fitAddon, paneTarget, sessionId, resizeObserver }>
this.terminalBufferCache = new Map(); // Map<sessionId, string> — client-side cache for instant tab re-visits (max 20)
this.ralphStatePanelCollapsed = true; // Default to collapsed
this.ralphClosedSessions = new Set(); // Sessions where user explicitly closed Ralph panel
// Plan subagent windows (visible agents during plan generation)
this.planSubagents = new Map(); // Map<agentId, { type, model, status, startTime, element, relativePos }>
this.planSubagentWindowZIndex = ZINDEX_PLAN_SUBAGENT_BASE;
this.planGenerationStopped = false; // Flag to ignore SSE events after Stop
this.planAgentsMinimized = false; // Whether agent windows are minimized to tab
// Wizard dragging state
this.wizardDragState = null; // { startX, startY, startLeft, startTop, isDragging }
this.wizardDragListeners = null; // { move, up } for cleanup
this.wizardPosition = null; // { left, top } - null means centered
// Project Insights tracking (active Bash tools with clickable file paths)
this.projectInsights = new Map(); // Map<sessionId, ActiveBashTool[]>
this.logViewerWindows = new Map(); // Map<windowId, { element, eventSource, filePath }>
this.logViewerWindowZIndex = ZINDEX_LOG_VIEWER_BASE;
this.projectInsightsPanelVisible = false;
// Orchestrator loop state
this.orchestratorState = null; // { state, plan, currentPhaseIndex, stats }
this.orchestratorPanelVisible = false;
this.currentSessionWorkingDir = null; // Track current session's working dir for path normalization
// Image popup windows (auto-open for detected screenshots/images)
this.imagePopups = new Map(); // Map<imageId, { element, sessionId, filePath }>
this.imagePopupZIndex = ZINDEX_IMAGE_POPUP_BASE;
this.attachmentCards = new Map(); // Map<attachmentId, { element, sessionId, filePath }>
this.attachmentCardStack = null;
this.attachmentHistoryCounts = new Map(); // Map<sessionId, count>
this.attachmentHistoryItems = [];
this.attachmentHistoryDrawerOpen = false;
// File browser state (methods in panels-ui.js)
this.fileBrowserData = null;
this.fileBrowserExpandedDirs = new Set();
this.fileBrowserFilter = '';
this.fileBrowserAllExpanded = false;
this.fileBrowserDragListeners = null;
// Show hidden (dot-prefixed) files and folders in the File Viewer tree.
// Per-device, persisted to its own localStorage key by panels-ui.js. Safe to
// call a mixin method here: instantiation is deferred to DOMContentLoaded,
// so every module's Object.assign has already run.
this.fileBrowserShowHidden = this._loadFileBrowserShowHidden?.() ?? false;
this.filePreviewContent = '';
// Toast container cache (methods in panels-ui.js)
this._toastContainer = null;
// Tunnel indicator state
this._tunnelUrl = null;
// Tab alert states: Map<sessionId, 'action' | 'idle'>
this.tabAlerts = new Map();
// Pending hooks per session: Map<sessionId, Set<hookType>>
// Tracks pending hook events that need resolution (permission_prompt, elicitation_dialog, idle_prompt)
this.pendingHooks = new Map();
// Approvals Inbox: Map<approvalId, ApprovalItem> (methods in approvals-ui.js)
this.approvals = new Map();
// WebSocket terminal I/O (low-latency bypass of HTTP POST + SSE)
this._ws = null; // WebSocket instance for active session
this._wsSessionId = null; // Session ID the WS is connected to
this._wsReady = false; // True when WS is open and ready for I/O
this._wsState = 'disconnected'; // connecting | connected | reconnecting | fallback | disconnected
this._wsLastRecvAt = 0; // ms timestamp of the last frame received on the active WS
// Terminal write batching with DEC 2026 sync support
this.pendingWrites = [];
this.writeFrameScheduled = false;
this._wasAtBottomBeforeWrite = true; // Default to true for sticky scroll
this.syncWaitTimeout = null; // Timeout for incomplete sync blocks
this._isLoadingBuffer = false; // true during chunkedTerminalWrite — blocks live SSE writes
this._loadBufferQueue = null; // queued SSE events during buffer load
this._bufferLoadSeq = 0;
this._bufferLoadOwner = null;
// Flicker filter state (buffers output after screen clears)
this.flickerFilterBuffer = '';
this.flickerFilterActive = false;
this.flickerFilterTimeout = null;
// Render debounce timers (managed by _debouncedCall)
this._debounceTimers = Object.create(null);
// System stats polling
this.systemStatsInterval = null;
// SSE reconnect timeout (to prevent orphaned timeouts)
this.sseReconnectTimeout = null;
// SSE event listener cleanup function (to prevent listener accumulation on reconnect)
this._sseListenerCleanup = null;
// SSE connection status tracking
this.reconnectAttempts = 0;
this.maxReconnectAttempts = 10;
this.isOnline = navigator.onLine;
// SSE staleness watchdog. An EventSource that stops delivering does not
// always error (a proxy that idle-closed it, a resumed laptop), so
// `onerror` never fires and every SSE-driven surface freezes silently.
// The server heartbeats every 15s; going quiet for three of them means the
// stream is a zombie and has to be rebuilt. The decision is pure
// (computeSseStale in constants.js); these are its inputs. The threshold
// is an instance field so a browser test can shrink it.
this._sseLastMessageAt = 0;
this._sseStaleTimeoutMs = window.CodemanSseStale?.TIMEOUT_MS ?? 45000;
this._sseStaleWatchdog = null;
// Connection-loss UI (banner + full-screen overlay). The decision itself is
// pure and lives in constants.js (computeConnectionLossUi); these are just
// its inputs. `_connDownSince` is the timestamp the transport LEFT the
// connected state, which is what the grace window is measured from.
this._connDownSince = null;
this._nextSseRetryAt = null; // when the scheduled SSE retry fires (countdown)
this._offlineOverlayDismissed = false;
this._offlineRetryPending = false; // a user-triggered retry is in flight
this._offlineUiTicker = null;
this._lastOfflineUiKey = '';
// Reliable, durable input delivery (replaces the old best-effort queue).
// Every input byte is recorded with a stable clientId + a monotonic
// per-session seq, persisted to localStorage, and only dropped once the
// server ACKs that exact seq — so a half-open socket silently dropping a
// frame, a reconnect, or a page reload can never lose a typed prompt.
// Exactly-once: the server applies each (clientId, seq) at most once.
this._connectionStatus = 'connected';
this._clientId = '';
this._seqCounters = new Map(); // sessionId -> last issued seq
this._pendingDeliveries = new Map(); // sessionId -> [{seq,data,useMux,ts,tries,sentAt}]
// Last rendered connection-indicator tuple; the hot input path skips DOM
// writes when the freshly computed descriptor is identical (COD-136).
this._lastIndicatorDescriptor = null;
this._postDraining = new Set(); // sessionIds with an in-flight POST drainer
this._persistReliableTimer = null;
this._reliableAckTimeoutMs = 4000; // unacked WS frame older than this ⇒ socket likely dead
this._reliableMaxBytes = 256 * 1024; // cap on the persisted backlog
this._loadReliableState();
this._reliableSweepTimer = setInterval(() => this._redeliverSweep(), 2000);
// Flush the durable queue synchronously when the page is hidden/closed —
// debounced persistence may have a pending write we mustn't lose on reload.
window.addEventListener('pagehide', () => this._persistReliableNow());
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') this._persistReliableNow();
// A background tab's timers are throttled, so the 5s watchdog may not
// have run for minutes, and a wake/unlock is exactly when a stream
// comes back zombie. Checking here is what makes recovery feel instant
// instead of up to a full timeout late.
else this._checkSseStale();
});
// Local echo overlay — DOM overlay positioned at the visible ❯ prompt
// (not at buffer.cursorY, which reflects Ink's internal cursor position)
this._localEchoOverlay = null; // created after terminal.open()
this._localEchoEnabled = false; // true when setting on + session active
// Predictive write-through echo (codex) — created after terminal.open()
// from the separate vendor/xterm-predictive-echo.js bundle (may stay null)
this._predictiveEcho = null;
this._localEchoPolicy = 'off'; // 'buffer' | 'predict' | 'off' (per active session)
this._restoringFlushedState = false; // true during selectSession buffer load — protects flushed Maps
// Accessibility: Focus trap for modals
this.activeFocusTrap = null;
// Notification system
this.notificationManager = new NotificationManager(this);
this.idleTimers = new Map(); // Map<sessionId, timeout> for stuck detection
// DOM element cache for performance (avoid repeated getElementById calls)
this._elemCache = {};
this.init();
}
// Cached element getter - avoids repeated DOM queries
$(id) {
if (!this._elemCache[id]) {
this._elemCache[id] = document.getElementById(id);
}
return this._elemCache[id];
}
// Clear a named timeout property: if (this[name]) { clearTimeout(this[name]); this[name] = null; }
_clearTimer(timerName) {
if (this[timerName]) {
clearTimeout(this[timerName]);
this[timerName] = null;
}
}
// Check if a selectSession generation is stale (a newer tab switch has started).
// If stale, cleans up buffer-loading state and returns true.
_isStaleSelect(selectGen) {
if (selectGen !== this._selectGeneration) {
if (this._isLoadingBuffer) this._finishBufferLoad(selectGen);
this._restoringFlushedState = false;
return true;
}
return false;
}
// Format token count: 1000k -> 1m, 1450k -> 1.45m, 500 -> 500
formatTokens(count) {
if (count >= 1000000) {
const m = count / 1000000;
return m >= 10 ? `${m.toFixed(1)}m` : `${m.toFixed(2)}m`;
} else if (count >= 1000) {
const k = count / 1000;
return k >= 100 ? `${k.toFixed(0)}k` : `${k.toFixed(1)}k`;
}
return String(count);
}
// Estimate cost from tokens using Claude Opus pricing
// Input: $15/M tokens, Output: $75/M tokens
estimateCost(inputTokens, outputTokens) {
const inputCost = (inputTokens / 1000000) * 15;
const outputCost = (outputTokens / 1000000) * 75;
return inputCost + outputCost;
}
// ═══════════════════════════════════════════════════════════════
// Pending Hooks State Machine
// ═══════════════════════════════════════════════════════════════
// Track pending hook events per session to determine tab alerts.
// Action hooks (permission_prompt, elicitation_dialog) take priority over idle_prompt.
setPendingHook(sessionId, hookType) {
if (!this.pendingHooks.has(sessionId)) {
this.pendingHooks.set(sessionId, new Set());
}
this.pendingHooks.get(sessionId).add(hookType);
this.updateTabAlertFromHooks(sessionId);
}
clearPendingHooks(sessionId, hookType = null) {
const hooks = this.pendingHooks.get(sessionId);
if (!hooks) return;
if (hookType) {
hooks.delete(hookType);
} else {
hooks.clear();
}
if (hooks.size === 0) {
this.pendingHooks.delete(sessionId);
}
this.updateTabAlertFromHooks(sessionId);
}
updateTabAlertFromHooks(sessionId) {
const hooks = this.pendingHooks.get(sessionId);
if (!hooks || hooks.size === 0) {
this.tabAlerts.delete(sessionId);
} else if (hooks.has('permission_prompt') || hooks.has('elicitation_dialog')) {
this.tabAlerts.set(sessionId, 'action');
} else if (hooks.has('idle_prompt')) {
this.tabAlerts.set(sessionId, 'idle');
}
this.renderSessionTabs();
}
// ═══════════════════════════════════════════════════════════════
// Init — app bootstrap and mobile setup
// ═══════════════════════════════════════════════════════════════
init() {
// Initialize mobile detection first (adds device classes to body)
MobileDetection.init();
// Detach/undock: open the cross-window sync channel; if this is a solo
// (popped-out) window, apply its minimal chrome immediately so the tab
// strip never flashes before handleInit selects the target session.
this._initWindowChannel();
if (this.isSoloWindow) document.body.classList.add('solo-mode');
// Initialize mobile handlers
KeyboardHandler.init();
SwipeHandler.init();
VoiceInput.init();
KeyboardAccessoryBar.init();
// Apply keyboard bar mode from settings. Always set it (not only when the
// extended bar is on) so the bar's remembered agent-session layout matches
// the setting before the first shell session swaps in the terminal bar.
const _kbSettings = this.loadAppSettingsFromStorage();
KeyboardAccessoryBar.setMode(_kbSettings.extendedKeyboardBar ? 'extended' : 'simple');
this.applyHeaderVisibilitySettings();
this.restorePlanUsageChip();
this.applySkin();
this.applyLocalization();
// Calls applyTabWrapSettings() itself (it owns tabs-two-rows / tabs-show-folder)
// and then applies the sidebar variant on top — do not call both.
this.applySessionListLayout();
this.applyMonitorVisibility();
this.applyLineageLineSettings?.();
this._installLineageStripScrollListener?.();
this._setupTabMiddleClickClose();
// Must run before the first session:created can arrive: markSessionTabEntering()
// ignores ids until this sets up its state, which is what keeps the tabs
// restored on page load from animating.
this.initEntranceAnimations?.();
// Remove mobile-init class now that JS has applied visibility settings.
// The inline <script> in <head> added this to prevent flash-of-content on mobile.
document.documentElement.classList.remove('mobile-init');
// Defer heavy terminal canvas creation to next frame — lets browser paint header/skeleton first.
// IMPORTANT: connectSSE must run AFTER initTerminal to prevent a race where SSE data
// arrives before the terminal exists, orphaning data in pendingWrites and corrupting
// escape sequence boundaries when later concatenated with fresh data.
requestAnimationFrame(() => {
this.initTerminal();
this.loadFontSize();
this.connectSSE();
// Only fetch state if SSE init event hasn't arrived within 3s (avoids duplicate handleInit)
this._initFallbackTimer = setTimeout(() => {
if (this._initGeneration === 0) this.loadState();
}, 3000);
});
// Register service worker for push notifications
this.registerServiceWorker();
// Fetch tunnel status for header indicator (desktop only)
this.loadTunnelStatus();
// Share a single settings fetch between both consumers
const settingsPromise = fetch('/api/settings').then(r => r.ok ? r.json() : null).then(env => env?.data ?? null).catch(() => null);
this.loadQuickStartCases(null, settingsPromise);
this._initRunMode();
this.initWebviews?.();
this.setupEventListeners();
// Mobile: ensure button taps register even when keyboard is visible.
// On mobile, tapping a button while the soft keyboard is up causes the
// browser to dismiss the keyboard first (blur event), swallowing the tap.
// The button only receives the click on a second tap. Fix: intercept
// touchstart on buttons while keyboard is visible, preventDefault to stop
// the dismiss-swallows-tap behavior, and trigger the click programmatically.
if (MobileDetection.isTouchDevice()) {
const addKeyboardTapFix = (container) => {
if (!container) return;
container.addEventListener('touchstart', (e) => {
if (!KeyboardHandler.keyboardVisible) return;
const btn = e.target.closest('button');
if (!btn) return;
e.preventDefault();
btn.click();
// Refocus terminal so keyboard stays open (e.g. voice input button)
if (typeof app !== 'undefined' && app.terminal) {
app.terminal.focus();
}
}, { passive: false });
};
addKeyboardTapFix(document.querySelector('.toolbar'));
addKeyboardTapFix(document.querySelector('.welcome-overlay'));
}
// System stats polling deferred until sessions exist (started in handleInit/session:created)
// Setup online/offline detection
this.setupOnlineDetection();
// Load server-stored settings (async, re-applies visibility after load)
this.loadAppSettingsFromServer(settingsPromise).then(() => {
this.applyHeaderVisibilitySettings();
this.applySkin();
this.applyLocalization();
this.applySessionListLayout();
this.applyMonitorVisibility();
this.applyLineageLineSettings?.();
// ultracodeFloatingWindows syncs from the server (non-display key), but on a
// FRESH device the getLightState run snapshot can seed workflowRuns BEFORE this
// async settings load resolves — so the floating-window gate read false then and
// skipped any already-active run. Re-sync now that the real setting is loaded so
// an in-flight run pops its window immediately instead of waiting for the next
// ~10s SSE tick. Idempotent: open windows are left as-is; if the setting is off
// it tears any premature windows down.
if (typeof this.syncAllUltracodeFloatingWindows === 'function') {
this.syncAllUltracodeFloatingWindows();
}
});
// Hide loading skeleton now that the app shell is ready
document.body.classList.add('app-loaded');
}
_initWebGL() {
if (typeof WebglAddon === 'undefined') return;
try {
this._webglAddon = new WebglAddon.WebglAddon();
this._webglAddon.onContextLoss(() => {
console.error('[CRASH-DIAG] WebGL context LOST — falling back to canvas renderer');
_crashDiag.log('WEBGL_LOST');
this._disableWebGLSticky('context-lost');
this._disposeWebGLObserver();
this._webglAddon?.dispose();
this._webglAddon = null;
this._scheduleTerminalRepaint();
});
this.terminal.loadAddon(this._webglAddon);
console.log('[CRASH-DIAG] WebGL renderer enabled');
this._installWebGLLongTaskGuard();
} catch (_e) { /* WebGL2 unavailable — canvas renderer used */ }
}
/**
* Watch for sustained main-thread stalls that indicate WebGL/GPU trouble.
* After WEBGL_FALLBACK.LONGTASK_COUNT long tasks (>=LONGTASK_MS each) within
* WINDOW_MS, dispose the WebGL addon and persist a sticky disable so
* subsequent reloads also use the DOM renderer. GRACE_MS skips initial-load
* stalls. Force-re-enable: ?webgl=force.
*/
_installWebGLLongTaskGuard() {
if (typeof PerformanceObserver === 'undefined' || this._webglLongTaskObserver) return;
const installedAt = performance.now();
const recent = [];
try {
this._webglLongTaskObserver = new PerformanceObserver((list) => {
if (!this._webglAddon) return;
const now = performance.now();
if (now - installedAt < WEBGL_FALLBACK.GRACE_MS) return;
if (evaluateWebGLLongTaskTrip(recent, list.getEntries(), now)) {
console.warn(`[CRASH-DIAG] WebGL long-task threshold (${recent.length} stalls/${WEBGL_FALLBACK.WINDOW_MS}ms) — falling back to canvas renderer`);
_crashDiag.log(`WEBGL_FALLBACK: ${recent.length}`);
this._disableWebGLSticky('long-tasks');
this._disposeWebGLObserver();
this._webglAddon?.dispose();
this._webglAddon = null;
this._scheduleTerminalRepaint();
}
});
this._webglLongTaskObserver.observe({ type: 'longtask', buffered: false });
} catch { /* longtask not supported */ }
}
/**
* Disconnect the WebGL longtask observer. Idempotent. Called from the trip
* path, the onContextLoss handler, and any future terminal-teardown path —
* the observer outlives its addon otherwise, holding a closure reference
* over `this` for every long task the page emits.
*/
_disposeWebGLObserver() {
if (!this._webglLongTaskObserver) return;
try { this._webglLongTaskObserver.disconnect(); } catch {}
this._webglLongTaskObserver = null;
}
/**
* Repaint the full terminal viewport after a renderer swap (WebGL → canvas/DOM).
* Scheduled on the next frame so it lands after the addon teardown settles, and
* debounced so the context-loss and long-task fallback paths can't double-fire.
* No-ops safely if the terminal isn't ready.
*/
_scheduleTerminalRepaint() {
if (this._terminalRepaintScheduled) return;
this._terminalRepaintScheduled = true;
const raf = typeof requestAnimationFrame === 'function' ? requestAnimationFrame : (cb) => setTimeout(cb, 0);
raf(() => {
this._terminalRepaintScheduled = false;
try { this.terminal?.refresh(0, this.terminal.rows - 1); } catch {}
});
}
_disableWebGLSticky(reason) {
try {
localStorage.setItem('codeman-webgl-disabled', JSON.stringify({ reason, at: Date.now() }));
} catch {}
}
// ═══════════════════════════════════════════════════════════════
// Event Listeners (Keyboard Shortcuts, Resize, Beforeunload)
// ═══════════════════════════════════════════════════════════════
setupEventListeners() {
// Action name → handler map for the shortcut registry (DEFAULT_SHORTCUTS +
// user overrides from settings.shortcutOverrides, merged by
// getShortcutRegistry()). The command palette chord is deliberately NOT in
// this map — shouldOpenCommandPaletteFromShortcut() dispatches it above with
// focus-target awareness (it must fire from the terminal but not from inputs).
const SHORTCUT_ACTIONS = {
showShortcutOverlay: () => this.showShortcutOverlay(),
killActiveSession: () => this.killActiveSession(),
nextSession: () => this.nextSession(),
clearTerminal: () => this.clearTerminal(),
restoreTerminalSize: () => this.restoreTerminalSize(),
increaseFontSize: () => this.increaseFontSize(),
decreaseFontSize: () => this.decreaseFontSize(),
toggleVoiceInput: () => VoiceInput.toggle(),
moveActiveTabLeft: () => this.moveActiveTabLeft(),
moveActiveTabRight: () => this.moveActiveTabRight(),
toggleSessionSidebar: () => this.toggleSessionSidebar(),
};
// Use capture to handle before terminal
document.addEventListener('keydown', (e) => {
// Don't intercept keys during CJK IME composition
if (e.isComposing || e.keyCode === 229) return;
if (this.shouldOpenCommandPaletteFromShortcut?.(e)) {
e.preventDefault();
this.openCommandPalette();
return;
}
// Escape - close panels and modals (different logic: no preventDefault, no return)
if (e.key === 'Escape') {
this.closeAllPanels();
this.closeHelp();
if (this.attachmentHistoryDrawerOpen) this.closeAttachmentHistory();
this.closeSessionManager();
this.closeCommandPalette?.();
this.closeShortcutOverlay?.();
// Overlay layouts only: below 1024px the sidebar is a modal off-canvas
// drawer over the terminal, so Escape must close it. The docked desktop
// sidebar is chrome, not a dialog — collapsing it would be a surprise.
if (this._isSessionSidebarOverlay() &&
this.isSessionSidebarActive() && !this.isSessionSidebarCollapsed()) {
this.toggleSessionSidebar();
document.getElementById('sidebarToggleBtn')?.focus();
}
}
// Option/Alt session navigation uses physical key CODES, not e.key, so macOS
// keyboard layouts that emit special characters under Option (Option+1 -> ¡,
// Option+[ -> "“") still switch sessions. e.code is the physical key regardless
// of layout. Option+1-9 = switch by index; Option+[ / Option+] = prev / next.
if (e.altKey && !e.ctrlKey && !e.shiftKey) {
const code = e.code || '';
const digitMatch = code.match(/^Digit([1-9])$/);
if (digitMatch) {
const idx = parseInt(digitMatch[1], 10) - 1;
// Sessions occupy 1..N and web tabs continue from N+1, matching the
// numbers actually painted on the tabs.
if (idx < this.sessionOrder.length) {
e.preventDefault();
this.selectSession(this.sessionOrder[idx]);
} else {
const webIdx = idx - this.sessionOrder.length;
const webId = (this.webviewOrder || [])[webIdx];
if (webId) {
e.preventDefault();
this.openWebview(webId);
}
}
return;
}
if (e.code === 'BracketLeft') {
e.preventDefault();
this.prevSession();
return;
}
if (e.code === 'BracketRight') {
e.preventDefault();
this.nextSession();
return;
}
}
// Match against the shortcut registry so user rebinds and per-shortcut
// disables (App Settings → Shortcuts) take effect. Every dispatchable
// binding requires Ctrl/Cmd/Alt (capture enforces the same), so plain
// typing exits early without touching the registry.
if (!e.ctrlKey && !e.metaKey && !e.altKey) return;
for (const shortcut of this.getShortcutRegistry()) {
if (shortcut.disabled || !shortcut.action) continue;
const action = SHORTCUT_ACTIONS[shortcut.action];
if (!action) continue;
if (this.matchesShortcutEvent(e, shortcut)) {
e.preventDefault();
action();
return;
}
}
}, true); // Use capture phase to handle before terminal
// Token stats click handler (with guard to prevent duplicate handlers on reconnect)
const tokenEl = this.$('headerTokens');
if (tokenEl && !tokenEl._statsHandlerAttached) {
tokenEl.classList.add('clickable');
tokenEl._statsHandlerAttached = true;
tokenEl.addEventListener('click', () => this.openTokenStats());
}
// Color picker for session customization
this.setupColorPicker();
}
// ═══════════════════════════════════════════════════════════════
// SSE Connection
// ═══════════════════════════════════════════════════════════════
/**
* POST a live subscription update so the server filters terminal events
* to the given session(s) for this client. Fire-and-forget — failures
* are non-fatal because we'll still get every event we don't want
* (just at higher cost), and the next reconnect carries the filter via
* the SSE query string.
*/
_updateSseSubscription(sessionId) {
try {
const body = JSON.stringify({
clientId: this._clientId,
sessions: sessionId ? [sessionId] : null,
});
fetch('/api/events/subscribe', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body,
keepalive: true,
}).catch(() => { /* non-fatal */ });
} catch { /* non-fatal */ }
}
// ══════════════════════════════════════════════════════════════════════
// Session detach / undock (beta/session-detach)
//
// Each detached window is just another normal client of the same session:
// the server already fans one PTY's output out to N SSE/WS clients and merges
// input from all of them, so a popped-out window is live with no extra server
// plumbing. The dashboard tracks which sessions are out, marks their tabs, and
// re-docks when the window closes. A BroadcastChannel keeps state in sync
// across windows (and survives a dashboard reload via roll-call).
// ══════════════════════════════════════════════════════════════════════
/** Resolve the solo session id from the URL path (preferred) or the
* server-injected global (fallback). Returns null for the normal dashboard. */
_detectSoloSessionId() {
try {
if (typeof window !== 'undefined' && typeof window.__CODEMAN_SOLO__ === 'string' && window.__CODEMAN_SOLO__) {
return window.__CODEMAN_SOLO__;
}
const m = location.pathname.match(/^\/session\/([^/]+)\/?$/);
return m ? decodeURIComponent(m[1]) : null;
} catch { return null; }
}
/**
* Pop a session out into its own browser window. SINGLE, idempotent entry
* point: the tab's pop-out icon calls this, and a future gesture layer
* ("pinch to drop") calls the exact same method — so keep it cheap and
* side-effect-light. Calling it again for an already-open window just raises
* that window.
* @param {string} id session id
*/
detachSession(id) {
if (this.isSoloWindow) return; // a solo window can't spawn more
if (!this.sessions.has(id)) return;
// Already detached → raise the existing popup instead of opening (or
// reloading) another. Mirrors the tab-click path: after a dashboard reload
// we hold no WindowProxy ref, so this raises via the channel rather than
// re-running window.open (which would reload the popup's terminal). Returns
// false only when we owned a now-closed window (re-dock + fall through to
// genuinely re-open below).
if (this.detachedSessions.has(id) && this._raiseDetached(id)) return;
const features = 'width=960,height=680,menubar=no,toolbar=no,location=no,status=no';
let win = null;
try { win = window.open('/session/' + encodeURIComponent(id), 'codeman-session-' + id, features); } catch {}
if (!win) {
this.showToast?.('Pop-out blocked — allow popups for this site to detach a session', 'error');
return;
}
this.detachedWindows.set(id, win);
this._markDetached(id, true);
this._watchDetachedWindow(id, win);
this._postWindowMessage({ type: 'detached', id });
try { win.focus(); } catch {}
}
/** Raise the popup for an already-detached session. Returns true if the raise
* was handled (caller should stop); false if we owned a now-closed window and
* re-docked it (caller should fall through to inline / re-open). Unifies the
* pop-out icon and tab-click paths so neither reloads a live popup. */
_raiseDetached(id) {
const win = this.detachedWindows.get(id);
if (win && !win.closed) { try { win.focus(); } catch {} return true; }
if (win && win.closed) { this._redock(id); return false; } // owned ref dead → redock + fall through
// No local ref (dashboard reloaded): assume alive and raise via the channel.
// A liveness ping (or the popup's own unload) heals the badge if it's gone.
this._postWindowMessage({ type: 'focus-request', id });
return true;
}
/** Re-dock a session: close its window (which re-docks via its unload
* announcement) and clear dashboard state now. */
redockSession(id) {
const win = this.detachedWindows.get(id);
if (win && !win.closed) { try { win.close(); } catch {} }
this._postWindowMessage({ type: 'close-request', id });
this._redock(id);
}
/** Clear all dashboard-side detached state/timers for a session. */
_redock(id) {
const t = this._detachWatchTimers.get(id);
if (t) { clearInterval(t); this._detachWatchTimers.delete(id); }
this._cancelPendingRedock(id);
this._detachOrphanStrikes.delete(id);
this.detachedWindows.delete(id);
this._markDetached(id, false);
}
/** Defer a channel-driven redock briefly. A popup *reload* emits 'redocked'
* then re-announces 'detached'; the grace window lets that re-announce cancel
* the redock, so a reload doesn't blip the dashboard badge. A real close
* leaves the redock unanswered and it fires. */
_scheduleRedock(id) {
if (this._redockGrace.has(id)) return;
const timer = setTimeout(() => { this._redockGrace.delete(id); this._redock(id); }, 1500);
this._redockGrace.set(id, timer);
}
_cancelPendingRedock(id) {
const t = this._redockGrace.get(id);
if (t) { clearTimeout(t); this._redockGrace.delete(id); }
}
/** Toggle the "detached" marker on a tab (immediate DOM update + state set).
* Full re-renders re-apply the class from this.detachedSessions. */
_markDetached(id, on) {
if (on) this.detachedSessions.add(id); else this.detachedSessions.delete(id);
const container = this.$('sessionTabs');
const tab = container && container.querySelector(`.session-tab[data-id="${id}"]`);
if (tab) tab.classList.toggle('detached', on);
}
/** Poll a window we opened; when it closes, re-dock its tab. This is the
* primary (reliable) close-detection path for windows this tab opened. */
_watchDetachedWindow(id, win) {
const prev = this._detachWatchTimers.get(id);
if (prev) clearInterval(prev);
const timer = setInterval(() => {
if (!win || win.closed) {
clearInterval(timer);
this._detachWatchTimers.delete(id);
this._redock(id);
}
}, 800);
this._detachWatchTimers.set(id, timer);
}
/** Open the cross-window BroadcastChannel and wire role-specific handlers. */
_initWindowChannel() {
if (typeof BroadcastChannel === 'undefined') return;
try { this.windowChannel = new BroadcastChannel('codeman-windows'); }
catch { this.windowChannel = null; return; }
this.windowChannel.onmessage = (e) => this._onWindowMessage(e.data);
if (this.isSoloWindow) {
// Announce presence so the dashboard marks this session's tab detached —
// even if this window was opened directly by URL rather than window.open.
this._postWindowMessage({ type: 'detached', id: this.soloSessionId });
// On close, tell the dashboard to re-dock. pagehide is the reliable signal
// on modern browsers; beforeunload is a belt-and-suspenders fallback.
const announceClose = () => this._postWindowMessage({ type: 'redocked', id: this.soloSessionId });
window.addEventListener('pagehide', announceClose);
window.addEventListener('beforeunload', announceClose);
} else {
// Dashboard: ask any already-open solo windows to re-announce themselves
// (covers a dashboard reload while popups remain open), then keep
// reconciling so a popup that died WITHOUT a 'redocked' (hard kill / crash)
// eventually un-marks its tab.
this._postWindowMessage({ type: 'roll-call' });
this._startDetachLiveness();
}
}
_postWindowMessage(msg) {
try { if (this.windowChannel) this.windowChannel.postMessage(msg); } catch {}
}
_onWindowMessage(msg) {
if (!msg || typeof msg !== 'object') return;
if (this.isSoloWindow) {
// Roll-call has no id (broadcast to all) — answer before the id filter.
if (msg.type === 'roll-call') { this._postWindowMessage({ type: 'detached', id: this.soloSessionId }); return; }
if (msg.id !== this.soloSessionId) return;
if (msg.type === 'close-request') { try { window.close(); } catch {} }
else if (msg.type === 'focus-request') { try { window.focus(); } catch {} }
return;
}
// Dashboard side.
if (msg.type === 'detached' && msg.id) {
this._cancelPendingRedock(msg.id); // a re-announce (e.g. popup reload) cancels a deferred redock
this._detachPingPending?.delete(msg.id); // and proves liveness for this tick
this._detachOrphanStrikes.delete(msg.id); // any answer clears accumulated misses
this._markDetached(msg.id, true);
} else if (msg.type === 'redocked' && msg.id) {
this._scheduleRedock(msg.id); // defer: a popup reload fires redocked→detached; grace avoids a badge blip
} else if (msg.type === 'detach-request' && msg.id) {
// Future gesture hook: another window asks the dashboard to detach a tab.
this.detachSession(msg.id);
}
}
/** Dashboard: periodically reconcile detached tabs we hold no window ref for
* (e.g. after a dashboard reload). Owned windows are covered by the
* win.closed poll; channel-only ones can only be checked by asking them to
* re-announce and re-docking any that stay silent. */
_startDetachLiveness() {
if (this._detachLivenessTimer) return;
this._detachLivenessTimer = setInterval(() => this._pingDetached(), 5000);
}
_pingDetached() {
const orphans = [];
for (const id of this.detachedSessions) {
const win = this.detachedWindows.get(id);
if (!win) orphans.push(id); // channel-only — must verify via re-announce
else if (win.closed) this._redock(id); // owned & closed — heal now
}
if (!orphans.length) return;
this._detachPingPending = new Set(orphans);
this._postWindowMessage({ type: 'roll-call' });
// Live popups answer 'detached' (clearing themselves above); survivors stay in
// the pending set. Redock only after TWO consecutive unanswered roll-calls — a
// backgrounded popup is timer-throttled and may miss a single 1.2s window, and
// we don't want to wrongly un-mark a still-open tab. A later answer resets the
// strike count (see _onWindowMessage).
setTimeout(() => {
if (!this._detachPingPending) return;
for (const id of this._detachPingPending) {
const strikes = (this._detachOrphanStrikes.get(id) || 0) + 1;
if (strikes >= 2) { this._detachOrphanStrikes.delete(id); this._redock(id); }
else this._detachOrphanStrikes.set(id, strikes);
}
this._detachPingPending = null;
}, 1200);
}
/** Solo window: select the target session and apply minimal single-session
* chrome. Called from handleInit once the session list has loaded. */
_applySoloMode() {
document.body.classList.add('solo-mode');
const session = this.sessions.get(this.soloSessionId);
if (!session) { this._showSoloSessionGone(); return; }
// Force re-select (handleInit cleared terminal state above).
this.activeSessionId = null;
this.selectSession(this.soloSessionId);
const name = this.getSessionName(session) || 'Session';
const titleEl = document.getElementById('soloSessionTitle');
if (titleEl) { titleEl.textContent = name; titleEl.style.display = ''; }
const redock = document.getElementById('soloRedockBtn');
if (redock) redock.style.display = '';
document.title = name + ' — ' + (window.CodemanI18n?.displayName || 'Codeman');
if (this.notificationManager) this.notificationManager.originalTitle = document.title;
// Neutralize the dashboard-only brand click in a solo window.
const logo = document.querySelector('.header-brand .logo');
if (logo) logo.onclick = (e) => { e.preventDefault(); };
}
/** Solo window: the target session is gone (never existed, or ended while
* this window was open). Show a friendly terminal state. */
_showSoloSessionGone() {
document.body.classList.add('solo-mode');
if (document.querySelector('.solo-gone-overlay')) return;
const el = document.createElement('div');
el.className = 'solo-gone-overlay';
el.innerHTML = '<h2>Session unavailable</h2>'
+ '<p>This session has ended or is no longer available.</p>'
+ '<button class="btn-primary" onclick="window.close()">Close window</button>';
document.body.appendChild(el);
document.title = (window.codemanT?.('Session ended') || 'Session ended')
+ ' — ' + (window.CodemanI18n?.displayName || 'Codeman');
}
connectSSE() {
// Check if browser is offline
if (!navigator.onLine) {
this.setConnectionStatus('offline');
return;
}
// Clear any pending reconnect timeout to prevent duplicate connections
this._clearTimer('sseReconnectTimeout');
// Same discipline for the staleness watchdog: connectSSE() runs on every
// reconnect and is the only teardown path this page-lifetime interval has,
// so clearing it anywhere else (or not at all) stacks intervals.
if (this._sseStaleWatchdog) {
clearInterval(this._sseStaleWatchdog);
this._sseStaleWatchdog = null;
}
// Clean up existing SSE listeners before creating new connection (prevents listener accumulation)
if (this._sseListenerCleanup) {
this._sseListenerCleanup();
this._sseListenerCleanup = null;
}
// Close existing EventSource before creating new one to prevent duplicate connections
if (this.eventSource) {
this.eventSource.close();
this.eventSource = null;
}
// Show connecting state
if (this.reconnectAttempts === 0) {
this.setConnectionStatus('connecting');
} else {
this.setConnectionStatus('reconnecting');
}
// Build URL with stable client ID and (if known) the active-session
// filter so the server only streams session:terminal events for the
// session we're rendering. Lifecycle/metadata events are sent globally
// regardless of filter (server side).
const _sseParams = new URLSearchParams({ clientId: this._clientId });
if (this.activeSessionId) _sseParams.set('sessions', this.activeSessionId);
this.eventSource = new EventSource(`/api/events?${_sseParams.toString()}`);
// Store all event listeners for cleanup on reconnect.
//
// Every handler is wrapped so ANY frame that arrives stamps the liveness
// clock the staleness watchdog reads. Doing it here (rather than at the
// three separate registration sites below) is what keeps a future
// addListener() call from silently opting out of it.
const listeners = [];
const addListener = (event, handler) => {
const stamped = (e) => {
this._sseLastMessageAt = Date.now();
handler(e);
};
this.eventSource.addEventListener(event, stamped);
listeners.push({ event, handler: stamped });
};
// Create cleanup function to remove all listeners
this._sseListenerCleanup = () => {
for (const { event, handler } of listeners) {
if (this.eventSource) {
this.eventSource.removeEventListener(event, handler);
}
}
listeners.length = 0;
};
this.eventSource.onopen = () => {
this.reconnectAttempts = 0;
// Start the liveness clock here, not at the first frame: the watchdog
// only ever fires while the status is 'connected', and this is the
// moment that becomes true.
this._sseLastMessageAt = Date.now();
this.setConnectionStatus('connected');
};
this.eventSource.onerror = () => {
this.reconnectAttempts++;
if (this.reconnectAttempts >= this.maxReconnectAttempts) {
this.setConnectionStatus('disconnected');
} else {
this.setConnectionStatus('reconnecting');
}
// Close the failed connection before scheduling reconnect
if (this.eventSource) {
this.eventSource.close();
this.eventSource = null;
}
// Clear any existing reconnect timeout before setting new one (prevents orphaned timeouts)
this._clearTimer('sseReconnectTimeout');
// Exponential backoff: 200ms, 500ms, 1s, 2s, 4s, ... up to 30s
// Fast first retry (200ms) for server-restart case (COM deploy),
// then ramp up for real network issues.
const delay = this.reconnectAttempts <= 1 ? 200
: Math.min(500 * Math.pow(2, this.reconnectAttempts - 2), 30000);
// Feeds the "Retrying in Ns" countdown. With a 30s cap on the backoff, a
// silent wait that long is indistinguishable from a hung app.
this._nextSseRetryAt = Date.now() + delay;
this._updateConnectionLossUi();
this.sseReconnectTimeout = setTimeout(() => this.connectSSE(), delay);
};
// Create stable handler wrappers once (reused across reconnects so
// removeEventListener always matches the original reference)
if (!this._sseHandlerWrappers) {
this._sseHandlerWrappers = new Map();
for (const [event, method] of _SSE_HANDLER_MAP) {
const fn = this[method];
this._sseHandlerWrappers.set(event, (e) => {
try {
fn.call(this, e.data ? JSON.parse(e.data) : {});
} catch (err) {
console.error(`[SSE] Error handling ${event}:`, err);
}
});
}
}
// Register all SSE event handlers via centralized map
for (const [event] of _SSE_HANDLER_MAP) {
addListener(event, this._sseHandlerWrappers.get(event));
}
// COD-121: live-refresh the unified session list (Session Manager modal +
// visible welcome list) on session structural changes. Extra listeners on the
// same EventSource — EventSource supports multiple listeners per event — so the
// existing handlers above are untouched. Registered through addListener so they
// are torn down with the rest on reconnect. Only structural events (created /
// deleted) trigger a refetch: session:updated is batch-broadcast every ~500ms
// per active session, which would otherwise turn an open modal / visible welcome
// list into a sustained ~1 Hz full ~/.claude/projects rescan loop.
for (const event of [SSE_EVENTS.SESSION_CREATED, SSE_EVENTS.SESSION_DELETED]) {
addListener(event, () => this._onSessionListMaybeChanged());
}
// Docker export/import: toast + refresh the Manage-tab exports list on completion.
addListener(SSE_EVENTS.DOCKER_EXPORT_COMPLETE, (e) => {
try {
const d = e.data ? JSON.parse(e.data) : {};
this.showToast(`Docker export ready: ${d.bundle} (${Math.round((d.sizeBytes || 0) / 1e6)} MB)`, 'success');
this.refreshDockerExports?.();
} catch (err) {
console.error('[SSE] docker export complete:', err);
}
});
addListener(SSE_EVENTS.DOCKER_EXPORT_FAILED, (e) => {
try {
const d = e.data ? JSON.parse(e.data) : {};
this.showToast(`Docker export failed: ${d.error || 'unknown error'}`, 'error');
} catch (err) {
console.error('[SSE] docker export failed:', err);
}
});
// Import + drift-recreate completions: refresh case lists in EVERY open tab
// (the initiating tab already refreshes via its own fetch response).
addListener(SSE_EVENTS.DOCKER_IMPORT_COMPLETE, (e) => {
try {
const d = e.data ? JSON.parse(e.data) : {};
this.showToast(`Docker bundle imported as case "${d.name}"`, 'success');
this.loadQuickStartCases?.();
this.refreshDockerExports?.();
} catch (err) {
console.error('[SSE] docker import complete:', err);
}
});
addListener(SSE_EVENTS.DOCKER_CONTAINER_RECREATED, (e) => {
try {
const d = e.data ? JSON.parse(e.data) : {};
this.showToast(`Container for "${d.name}" removed — next launch recreates it with the new config`, 'info');
} catch (err) {
console.error('[SSE] docker container recreated:', err);
}
});
// Multi-user admin: live-refresh whichever admin views (panel/Users tab) are open.
addListener(SSE_EVENTS.ADMIN_USERS_CHANGED, () => {
window.codemanAdmin?.onUsersChanged?.();
});
// Base image auto-build on first Docker case (build-on-first-use). A single
// multi-minute event; surface start/finish so the Run spinner is explained.
addListener(SSE_EVENTS.DOCKER_IMAGE_BUILD_STARTED, () => {
this.showToast('Building the Codeman agent image (first Docker case, a few minutes)...', 'info', {
duration: 8000,
});
});
addListener(SSE_EVENTS.DOCKER_IMAGE_BUILD_COMPLETE, (e) => {
try {
const d = e.data ? JSON.parse(e.data) : {};
if (d.error) this.showToast(`Agent image build failed: ${d.error}`, 'error');
else this.showToast('Agent image ready. Starting the container...', 'success');
} catch (err) {
console.error('[SSE] docker image build complete:', err);
}
});
addListener(SSE_EVENTS.DOCKER_IMAGE_BUILD_FAILED, (e) => {
try {
const d = e.data ? JSON.parse(e.data) : {};
this.showToast(`Agent image build failed: ${d.error || 'unknown error'}`, 'error');
} catch (err) {
console.error('[SSE] docker image build failed:', err);
}
});
// COD-139: a session:pinned event updates the local live-session pin flag (so
// a subsequent render is consistent) and re-sorts the open session manager /
// welcome list so pinned sessions float to the top.
addListener(SSE_EVENTS.SESSION_PINNED, (e) => {
let data = null;
try {
data = JSON.parse(e.data);
} catch {
/* ignore malformed payload */
}
if (data && data.id) {
const live = this.sessions.get(data.id);
if (live) {
live.pinned = data.pinned === true;
live.pinnedAt = data.pinned ? data.pinnedAt : undefined;
}
}
this._onSessionListMaybeChanged();
});
// Liveness heartbeat. The handler is deliberately empty: the whole point
// is the stamp inherited from addListener's wrapper. It still has to be
// REGISTERED: EventSource only dispatches named events that have a
// listener, so without this the frame arrives on the wire and is dropped
// before it can prove the stream is alive.
addListener(SSE_EVENTS.HEARTBEAT, () => {});
// Watchdog: a stream that goes quiet without erroring is invisible to
// onerror, so poll the pure staleness policy and rebuild the connection
// ourselves. 5s granularity against a 45s threshold: cheap, and it keeps
// the worst-case detection lag well under a heartbeat interval.
this._sseStaleWatchdog = setInterval(() => this._checkSseStale(), 5000);
}
/**
* Force a reconnect if the SSE stream has gone quiet while still claiming to
* be connected. Called by the 5s watchdog and on tab-visible.
*
* Recovery needs no new sync path: the reconnect re-runs `handleInit`, which
* already calls `_resetAllAppState()` and rebuilds everything from the
* server. The connection-loss UI needs nothing either: `connectSSE()` sets
* status 'connecting' (reconnectAttempts was zeroed by onopen), and the 2.5s
* grace in computeConnectionLossUi means a stream that heals in 200ms shows
* nothing at all.
*/
_checkSseStale() {
const policy = window.CodemanSseStale;
if (!policy) return;
const now = Date.now();
const stale = policy.compute({
lastMessageAt: this._sseLastMessageAt,
now,
status: this._connectionStatus,
isOnline: this.isOnline,
timeoutMs: this._sseStaleTimeoutMs,
});
if (!stale) return;
// If a middlebox ever strips or delays heartbeats, the failure mode is
// "silently reconnects every 45s", and a field report of that would be
// undebuggable without this line.
console.log(
`[SSE] stream stale: no frame for ${now - this._sseLastMessageAt}ms ` +
`(threshold ${this._sseStaleTimeoutMs}ms), forcing reconnect`
);
this.connectSSE();
}
// ═══════════════════════════════════════════════════════════════
// SSE Event Handlers
// ═══════════════════════════════════════════════════════════════
// Each _on* method receives pre-parsed SSE data (JSON.parse done in connectSSE loop).
// Async handlers have their own internal try/catch for fetch errors.
_onInit(data) {
_crashDiag.log(`INIT: ${data.sessions?.length || 0} sessions`);
this.handleInit(data);
}
_onSessionCreated(data) {
this.sessions.set(data.id, data);
// Add new session to end of tab order
if (!this.sessionOrder.includes(data.id)) {
this.sessionOrder.push(data.id);
this.saveSessionOrder();
}
// Idempotent per id: the POST response and the session:created event both
// land here, and a batch launched together cascades in creation order.
this.markSessionTabEntering?.(data.id);
// The pane is one shared element, so it is only marked here and played when
// this session is actually selected (see selectSession).
this.markTerminalEntering?.(data.id);
// A spawned session's lineage arc draws in with the tab. Keyed the same way
// session-lineage.js tags its paths; a no-op unless a line-entrance theme is on.
if (data.parentSessionId) this.markConnectionLineEntering?.('lineage:' + data.id);
this.renderSessionTabs();
this.updateCost();
// Start stats polling when first session appears
if (this.sessions.size === 1) this.startSystemStatsPolling();
}
_onSessionUpdated(data) {
const session = data.session || data;
const oldSession = this.sessions.get(session.id);
const claudeSessionIdJustSet = session.claudeSessionId && (!oldSession || !oldSession.claudeSessionId);
this.sessions.set(session.id, session);
this.renderSessionTabs();
this.updateCost();
// Update tokens display if this is the active session
if (session.id === this.activeSessionId && session.tokens) {
this.updateRespawnTokens(session.tokens);
}
// Update parentSessionName for any subagents belonging to this session
// (fixes stale name display after session rename)
this.updateSubagentParentNames(session.id);
// If claudeSessionId was just set, re-check orphan subagents
// This connects subagents that were waiting for the session to identify itself
if (claudeSessionIdJustSet) {
this.recheckOrphanSubagents();
// Update connection lines after DOM settles (ensure tabs are rendered)
requestAnimationFrame(() => {
this.updateConnectionLines();
});
}
}
_onSessionDeleted(data) {
if (this._wsSessionId === data.id) this._disconnectWs();
// Solo window whose session just ended → show the "unavailable" state.
if (this.isSoloWindow && data.id === this.soloSessionId) {
this._showSoloSessionGone();
}
// Dashboard: a detached session ended → clear its detached state/timers.
if (this.detachedSessions.has(data.id)) this._redock(data.id);
this._cleanupSessionData(data.id);
if (this.activeSessionId === data.id) {
this.activeSessionId = null;
try { localStorage.removeItem('codeman-active-session'); } catch {}
this.terminal.clear();
this.showWelcome();
}
this.renderSessionTabs();
this.renderRalphStatePanel(); // Update ralph panel after session deleted
this.renderProjectInsightsPanel(); // Update project insights panel after session deleted
// Stop stats polling when no sessions remain
if (this.sessions.size === 0) this.stopSystemStatsPolling();
}
// SSE wrappers — skip terminal events when WebSocket is delivering for this session.
// WS handler calls the underlying _onSession* methods directly.
_onSSETerminal(data) {
if (this._wsReady && this._wsSessionId === data.id) return;
this._onSessionTerminal(data);
}
_onSSENeedsRefresh(data) {
if (this._wsReady && this._wsSessionId === data?.id) return;
this._onSessionNeedsRefresh(data);
}
_onSSEClearTerminal(data) {
if (this._wsReady && this._wsSessionId === data?.id) return;
this._onSessionClearTerminal(data);
}
_onSessionTerminal(data) {
if (data.id === this.activeSessionId) {
if (data.data.length > 32768) _crashDiag.log(`TERMINAL: ${(data.data.length/1024).toFixed(0)}KB`);
// Hard cap: track total bytes queued in render buffers (pendingWrites +
// flickerFilterBuffer). When rAF is throttled (tab
// backgrounded, GPU busy), data accumulates with no flush, reaching
// 889KB+ and freezing Chrome for minutes. Drop data beyond 128KB and
// schedule a buffer reload to recover the display once the burst subsides.
const queued = (this.pendingWrites?.reduce((s, w) => s + w.length, 0) || 0)
+ (this.flickerFilterBuffer?.length || 0);
if (queued > 131072) { // 128KB — drop to prevent accumulation
// Schedule a self-recovery: reload the full terminal buffer once the
// queue drains (debounced to avoid hammering the API during sustained bursts).
if (!this._clientDropRecoveryTimer) {
this._clientDropRecoveryTimer = setTimeout(() => {
this._clientDropRecoveryTimer = null;
this._onSessionNeedsRefresh();
}, 2000);
}
return;
}
this.batchTerminalWrite(data.data);
}
}
// ═══════════════════════════════════════════════════════════════
// Response Viewer — native-scroll panel for reading full Claude responses
// ═══════════════════════════════════════════════════════════════
/** Strip dangerous elements and attributes from HTML (XSS prevention) */
_sanitizeHtml(html) {
if (typeof window !== 'undefined' && typeof window.sanitizeMarkdownHtml === 'function') {
return window.sanitizeMarkdownHtml(html);
}
// Fail closed: DOMPurify unavailable — never return un-sanitized HTML.
return String(html == null ? '' : html)
.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
}
/**
* Strip ANSI escape sequences and Claude CLI chrome (status bar, hints,
* spinner, progress bar) from a terminal buffer so the response viewer can
* show just the conversational text when the JSONL transcript is missing.
*/
_cleanTerminalBuffer(buf) {
const stripped = buf
// CSI sequences — params (0x30-0x3F includes digits, ?, ;, <, =, >),
// intermediates (0x20-0x2F), final byte (0x40-0x7E). Catches \x1b[>c,
// \x1b[>q, \x1b[?25l etc. that the previous regex missed.
.replace(/\x1b\[[\x30-\x3F]*[\x20-\x2F]*[\x40-\x7E]/g, '')
// OSC sequences (window titles etc.) terminated by BEL or ST
.replace(/\x1b\][^\x07\x1b]*(?:\x07|\x1b\\)/g, '')
// DCS / APC / PM / SOS sequences
.replace(/\x1b[PX^_][^\x1b]*\x1b\\/g, '')
// SS2/SS3 + charset selects + single-char escapes
.replace(/\x1b[NO()][A-Z0-9]?/g, '')
.replace(/\x1b[>=<78cDEHM]/g, '')
// Stray control chars (except \t \n)
.replace(/[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]/g, '')
.replace(/\r\n/g, '\n').replace(/\r/g, '\n');
// Drop Claude CLI chrome lines that aren't part of the response.
const CHROME_PATTERNS = [
/^\s*❯\s*/, // shell prompt
/^\s*[⏵⏺⏸⏹]+\s*/, // status glyphs
/^\s*✻\s*(Crunching|Crunched|Thinking)/i, // spinner lines
/bypass permissions/i,
/\bshift\+tab to cycle\b/i,
/^\s*focus\s*$/,
/^\s*new task\?/i,
/\/clear to save/i,
/^\s*─{5,}\s*$/, // horizontal dividers
/\[(Opus|Sonnet|Haiku|GPT|Claude)[\s\S]*(tokens?|\$|¥|%|↑|↓)/i, // status bar
/^\s*\[\d+[km]?\/\d+[km]?\]/i, // token counter
/[█░▓▒]{3,}/, // progress bar
/^\s*\(.*\s*(tokens?|context).*\)\s*$/i,
];
const lines = stripped.split('\n');
const kept = lines.filter((line) => {
const trimmed = line.trim();
if (!trimmed) return true; // keep blanks so paragraphs survive
return !CHROME_PATTERNS.some((re) => re.test(line));
});
return kept
.join('\n')
.replace(/[ \t]+$/gm, '')
.replace(/\n{4,}/g, '\n\n\n')
.trim();
}
/**
* Wrap ASCII/box diagrams in fenced code blocks so marked.js preserves whitespace.
* Claude often emits box-drawing diagrams without triple-backticks; without this
* step, HTML collapses the whitespace and the diagram becomes unreadable prose.
*/
_preprocessAsciiArt(text) {
// Only trigger on characters that rarely appear in prose:
// U+2500-U+257F Box Drawing (─│┌┐└┘├┤┬┴┼╔╗╚╝═║)
// U+2580-U+259F Block Elements (▀▄█▌▐░▒▓, progress bars)
// Deliberately excluded:
// U+2190-U+21FF Arrows (→←↑↓⇒ — common rhetorical prose)
// U+25A0-U+25FF Geometric Shapes (●○■□◆◇ — common bullets)
// Triggering on those would wrap numbered lists / prose that merely uses
// arrows in code blocks and break their markdown rendering.
const BOX_PATTERN = /[─-╿▀-▟]/;
// Preserve existing fenced code blocks as-is (hide them behind placeholders)
const fenceRe = /```[\s\S]*?```/g;
const placeholders = [];
const masked = text.replace(fenceRe, (m) => {
placeholders.push(m);
return `__CODEMAN_FENCE_${placeholders.length - 1}__`;
});
// Split on blank-line paragraph boundaries; wrap any paragraph containing
// box-drawing/arrow chars in its own fenced block.
const processed = masked
.split(/(\n{2,})/)
.map((chunk) => {
if (/^\n{2,}$/.test(chunk)) return chunk; // keep separators
if (!chunk.trim()) return chunk;
if (chunk.includes('__CODEMAN_FENCE_')) return chunk;
if (BOX_PATTERN.test(chunk)) return '\n```\n' + chunk + '\n```\n';
return chunk;
})
.join('');
return processed.replace(/__CODEMAN_FENCE_(\d+)__/g, (_m, i) => placeholders[Number(i)]);
}
/** Render markdown to sanitized HTML, falling back to plain text if marked.js unavailable */
_renderMarkdown(text) {
const src = text || '';
if (typeof marked !== 'undefined' && marked.parse) {
try {
const prepared = this._preprocessAsciiArt(src);
let html = this._sanitizeHtml(marked.parse(prepared, { breaks: true, gfm: true }));
// Wrap tables in a horizontal-scroll container so they overflow gracefully
// on mobile without collapsing into block-level cells.
html = html.replace(/<table>/g, '<div class="rv-table-wrap"><table>')
.replace(/<\/table>/g, '</table></div>');
// Tag code blocks containing box-drawing glyphs as diagrams (same
// narrow trigger as _preprocessAsciiArt — arrows/geometric shapes
// don't count because they appear frequently in prose).
// Default is wrap (readable on mobile); a toggle button lets the user
// switch to horizontal-scroll mode when the original structure matters.
// The button must live OUTSIDE the <pre> scroll container so it stays
// pinned to the visual right edge when the user scrolls horizontally.
const DIAGRAM_CHAR = /[─-╿▀-▟]/;
const tmpl = document.createElement('template');
tmpl.innerHTML = html;
// Every fenced code block gets a positioned wrapper with an action
// toolbar pinned to its top-right corner. The toolbar lives OUTSIDE the
// <pre> scroll container so its buttons stay put during horizontal
// scroll. All blocks get a one-click copy button; ASCII diagrams keep
// the additional line-wrap toggle.
tmpl.content.querySelectorAll('pre > code').forEach((code) => {
const pre = code.parentElement;
const isDiagram = DIAGRAM_CHAR.test(code.textContent || '');
const wrap = document.createElement('div');
wrap.className = isDiagram ? 'rv-code-wrap rv-diagram-wrap' : 'rv-code-wrap';
const actions = document.createElement('div');
actions.className = 'rv-code-actions';
const copyBtn = document.createElement('button');
copyBtn.className = 'rv-copy-btn';
copyBtn.type = 'button';
copyBtn.setAttribute('aria-label', 'Copy code');
copyBtn.setAttribute('title', 'Copy code');
actions.appendChild(copyBtn);
if (isDiagram) {
pre.classList.add('rv-diagram');
const toggle = document.createElement('button');
toggle.className = 'rv-wrap-toggle';
toggle.type = 'button';
toggle.setAttribute('aria-label', 'Toggle line wrapping');
toggle.setAttribute('title', 'Toggle line wrapping');
actions.appendChild(toggle);
}
pre.parentNode.insertBefore(wrap, pre);
wrap.appendChild(actions);
wrap.appendChild(pre);
});
return tmpl.innerHTML;
} catch { /* fall through */ }
}
// Fallback: escape HTML and preserve whitespace
const escaped = src.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
return `<pre style="white-space:pre-wrap;word-break:break-word">${escaped}</pre>`;
}
/**
* Bind click handlers inside the response viewer body. Uses event delegation
* so a single listener serves every diagram-toggle button, including those
* added when the conversation is reloaded. Idempotent via a dataset flag.
*/
_bindResponseViewerInteractions(body) {
if (!body || body.dataset.rvBound === '1') return;
body.dataset.rvBound = '1';
body.addEventListener('click', async (ev) => {
// File path (_linkifyFilePaths): open it in the preview overlay, which
// resolves workspace and out-of-workspace paths alike.
const pathLink = ev.target.closest('a.rv-path');
if (pathLink) {
ev.preventDefault();
ev.stopPropagation();
const filePath = pathLink.dataset.path;
if (filePath) this.openFilePreview(filePath, this.activeSessionId);
return;
}
// One-click copy: lift the raw source from the sibling <pre><code>.
const copyBtn = ev.target.closest('.rv-copy-btn');
if (copyBtn) {
ev.preventDefault();
ev.stopPropagation();
const code = copyBtn.closest('.rv-code-wrap')?.querySelector('pre code');
const ok = code ? await this._copyText(code.textContent || '') : false;
copyBtn.classList.remove('rv-copied', 'rv-copy-failed');
copyBtn.classList.add(ok ? 'rv-copied' : 'rv-copy-failed');
clearTimeout(copyBtn._resetTimer);
copyBtn._resetTimer = setTimeout(() => {
copyBtn.classList.remove('rv-copied', 'rv-copy-failed');
}, 1500);
return;
}
const btn = ev.target.closest('.rv-wrap-toggle');
if (!btn) return;
ev.preventDefault();
ev.stopPropagation();
const wrap = btn.closest('.rv-diagram-wrap');
const pre = wrap?.querySelector('pre.rv-diagram');
if (!pre || !wrap) return;
const nowrap = pre.classList.toggle('rv-nowrap');
wrap.classList.toggle('rv-wrap-nowrap', nowrap);
});
}
/**
* Copy text to the clipboard. Prefers the async Clipboard API (secure
* contexts); falls back to a hidden-textarea + execCommand path so copy
* still works over plain HTTP. Returns true on success.
*/
async _copyText(text) {
if (!text) return false;
try {
if (navigator.clipboard?.writeText) {
await navigator.clipboard.writeText(text);
return true;
}
} catch { /* secure-context write failed — try the legacy path */ }
try {
const ta = document.createElement('textarea');
ta.value = text;
ta.setAttribute('readonly', '');
ta.style.cssText = 'position:fixed;top:0;left:0;opacity:0;pointer-events:none';
document.body.appendChild(ta);
ta.select();
const ok = document.execCommand('copy');
document.body.removeChild(ta);
return ok;
} catch {
return false;
}
}
/** Build one response-viewer message so the brief and full views share markup and CSS. */
_buildResponseViewerMessage(text, role, agentLabel) {
const div = document.createElement('div');
const isUser = role === 'user';
div.className = 'rv-message ' + (isUser ? 'rv-msg-user' : 'rv-msg-assistant');
const roleBadge = document.createElement('div');
roleBadge.className = 'rv-role ' + (isUser ? 'rv-role-user' : 'rv-role-assistant');
roleBadge.textContent = isUser ? 'You' : agentLabel;
div.appendChild(roleBadge);
const renderedText = document.createElement('div');
renderedText.className = 'rv-text';
renderedText.innerHTML = this._renderMarkdown(text);
this._linkifyFilePaths(renderedText);
div.appendChild(renderedText);
return div;
}
/**
* Make absolute file paths in a rendered message clickable.
*
* The terminal's link provider never sees these: the response viewer is
* markdown, and a path the agent wrote as prose or inline code renders as
* inert text — so the file it just produced (a screenshot, a report) was one
* copy-paste away from being viewable instead of one click. Same pattern the
* terminal uses (constants.js), same destination (the file-preview overlay).
*
* Walks TEXT NODES and builds anchors with DOM APIs — never innerHTML, and
* never a string rebuild of already-sanitized markup: the source is model
* output. Subtrees already inside an `<a>` are skipped so an autolinked URL
* is never re-cut, and the anchor's textContent is the path verbatim, so
* "copy code" still yields exactly what the agent printed.
*/
_linkifyFilePaths(root) {
if (!root || typeof document === 'undefined') return;
// Guarded: a stale cached constants.js must degrade to plain text, not throw
// out of the middle of rendering a message.
if (typeof absoluteFilePathPattern !== 'function') return;
const pattern = absoluteFilePathPattern();
// Collect first: replacing a node while the walker is positioned on it
// invalidates the traversal.
const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT);
const targets = [];
for (let node = walker.nextNode(); node; node = walker.nextNode()) {
if (node.parentElement?.closest('a')) continue;
pattern.lastIndex = 0;
if (pattern.test(node.nodeValue || '')) targets.push(node);
}
for (const node of targets) {
const value = node.nodeValue;
const frag = document.createDocumentFragment();
let cursor = 0;
let match;
pattern.lastIndex = 0;
while ((match = pattern.exec(value)) !== null) {
const path = match[1];
if (match.index > cursor) frag.appendChild(document.createTextNode(value.slice(cursor, match.index)));
const link = document.createElement('a');
link.className = 'rv-path';
link.href = '#';
link.dataset.path = path;
link.title = path;
link.textContent = path;
frag.appendChild(link);
cursor = match.index + path.length;
}
if (cursor < value.length) frag.appendChild(document.createTextNode(value.slice(cursor)));
node.parentNode?.replaceChild(frag, node);
}
}
_getResponseViewerAgentLabel() {
const mode = this.sessions.get(this.activeSessionId)?.mode;
return mode === 'codex'
? 'Codex'
: mode === 'gemini'
? 'Gemini'
: mode === 'antigravity'
? 'Antigravity'
: mode === 'pi'
? 'Pi'
: mode === 'opencode'
? 'OpenCode'
: 'Claude';
}
async toggleResponseViewer() {
const viewer = document.getElementById('responseViewer');
const backdrop = document.getElementById('responseViewerBackdrop');
if (!viewer) return;
const isOpen = viewer.classList.contains('visible');
if (isOpen) {
viewer.classList.remove('visible');
backdrop.classList.remove('visible');
return;
}
if (!this.activeSessionId) return;
try {
// Source 1: Transcript JSONL (best quality — clean structured text from Claude)
const res = await fetch(`/api/sessions/${this.activeSessionId}/last-response`);
const data = (await res.json())?.data ?? {};
let lastResponse = data.text || '';
// Source 2: Terminal buffer fallback — strip ANSI, drop Claude CLI chrome.
// Claude + shell only: _cleanTerminalBuffer knows Claude CLI's output, and
// shell sessions have no transcript source at all; for TUI modes
// (codex/opencode/gemini/antigravity) it yields repaint garbage, so a clear
// placeholder beats a messy screen dump there.
const sessionMode = this.sessions.get(this.activeSessionId)?.mode || 'claude';
if (!lastResponse && (sessionMode === 'claude' || sessionMode === 'shell')) {
const termRes = await fetch(`/api/sessions/${this.activeSessionId}/terminal`);
const termData = (await termRes.json())?.data ?? {};
if (termData.terminalBuffer) {
lastResponse = this._cleanTerminalBuffer(termData.terminalBuffer);
}
}
const body = document.getElementById('responseViewerBody');
if (lastResponse) {
// Keep the brief view inside the same message wrapper as the full
// conversation view. The wrapper supplies the card, role badge and
// descendant markdown styles that direct body children do not get.
body.innerHTML = '';
body.appendChild(this._buildResponseViewerMessage(lastResponse, 'assistant', this._getResponseViewerAgentLabel()));
this._bindResponseViewerInteractions(body);
} else {
body.textContent =
window.codemanT?.('No response yet — send a message in this session first.') ||
'No response yet — send a message in this session first.';
}
// Reset state for fresh open
const title = document.getElementById('responseViewerTitle');
const moreBtn = document.getElementById('responseViewerMore');
if (title) title.textContent = 'Last Response';
if (moreBtn) { moreBtn.style.display = ''; moreBtn.textContent = 'More'; }
viewer.classList.add('visible');
backdrop.classList.add('visible');
body.scrollTop = 0;
} catch (err) {
console.error('Failed to load response:', err);
}
}
async loadFullContext() {
if (!this.activeSessionId) return;
const moreBtn = document.getElementById('responseViewerMore');
if (moreBtn) moreBtn.textContent = '...';
try {
const res = await fetch(`/api/sessions/${this.activeSessionId}/last-response?context=full`);
const data = (await res.json())?.data ?? {};
const messages = data.messages || [];
const body = document.getElementById('responseViewerBody');
const title = document.getElementById('responseViewerTitle');
if (!body) return;
if (messages.length === 0) {
body.textContent = 'No conversation history available';
return;
}
// Render conversation thread
const agentLabel = this._getResponseViewerAgentLabel();
body.innerHTML = '';
for (const msg of messages) {
body.appendChild(this._buildResponseViewerMessage(msg.text, msg.role, agentLabel));
}
this._bindResponseViewerInteractions(body);
if (title) title.textContent = `Conversation (${messages.length} messages)`;
if (moreBtn) moreBtn.style.display = 'none';
// Scroll to bottom (latest message)
body.scrollTop = body.scrollHeight;
} catch (err) {
console.error('Failed to load context:', err);
} finally {
if (moreBtn) moreBtn.textContent = 'More';
}
}
async _onSessionNeedsRefresh() {
// Server sends this after SSE backpressure clears — terminal data was dropped,
// so reload the buffer to recover from any display corruption.
if (!this.activeSessionId || !this.terminal) return;
// Skip if buffer load already in progress — avoids competing clear+rewrite cycles
if (this._isLoadingBuffer) return;
const sessionId = this.activeSessionId;
try {
// Recovery should restore the WHOLE picture, so ask for full history
// rather than a tail. Measured on a 900-line shell pane: the tail rewrite
// replaced an 869-row buffer with 158 rows, so every backpressure refresh
// silently destroyed most of the scrollback it was meant to repair.
//
// A repaint-mode pane is the opposite case (tmux keeps ~one frame for it),
// so the full capture can be SMALLER than what xterm already holds. Reuse
// the same downgrade guard as the scroll-to-top re-pull and fall back to
// the historical tail there, leaving that case exactly as it was.
let res = await fetch(`/api/sessions/${sessionId}/terminal?full=1`);
let data = (await res.json())?.data ?? {};
if (data.terminalBuffer && this._replayWouldShrinkBuffer(data.terminalBuffer)) {
res = await fetch(`/api/sessions/${sessionId}/terminal?tail=${TERMINAL_TAIL_SIZE}`);
data = (await res.json())?.data ?? {};
}
// Bail on a tab switch mid-fetch: writing here would paint this session's
// history into the terminal the user is now looking at. The window is two
// fetches wide in the fallback case, so this guard is not optional.
if (this.activeSessionId !== sessionId) return;
if (data.terminalBuffer) {
// This refresh is SERVER-triggered, so a user quietly reading scrollback
// did not ask for it and must not be dragged to the bottom by it (#259).
// The rewrite replaces the buffer, so an absolute viewportY is
// meaningless across it — distance from the bottom is what survives.
const before = this.terminal.buffer?.active;
const linesFromBottom = before ? Math.max(0, (before.baseY || 0) - (before.viewportY || 0)) : 0;
this.terminal.clear();
this.terminal.reset();
await this.chunkedTerminalWrite(data.terminalBuffer);
// A tail fetch can be partial, and the banner would otherwise keep
// describing the pre-refresh buffer (#258).
this._setHistoryTruncation(sessionId, data);
const target = computeRewriteScrollLine({
linesFromBottom,
baseY: this.terminal.buffer?.active?.baseY ?? 0,
});
if (target === null || typeof this.terminal.scrollToLine !== 'function') this.terminal.scrollToBottom();
else this.terminal.scrollToLine(target);
// Re-position local echo overlay at new prompt location
this._localEchoOverlay?.rerender();
// Resize PTY to match actual browser dimensions (critical for OpenCode
// TUI sessions that render at fixed 120x40 until told the real size)
if (this.activeSessionId) {
this.sendResize(this.activeSessionId);
}
}
} catch (err) {
console.error('needsRefresh reload failed:', err);
}
}
async _onSessionClearTerminal(data) {
if (data.id === this.activeSessionId) {
// Skip if selectSession is already loading the buffer — clearTerminal arriving
// during buffer load would clear the terminal mid-write, causing visible flicker
// and a race between two concurrent chunkedTerminalWrite calls (especially on mobile
// where rAF is slower). selectSession will handle the final buffer state.
if (this._isLoadingBuffer) return;
// Fetch buffer, clear terminal, write buffer, resize (no Ctrl+L needed)
try {
const res = await fetch(`/api/sessions/${data.id}/terminal`);
const termData = (await res.json())?.data ?? {};
this.terminal.clear();
this.terminal.reset();
if (termData.terminalBuffer) {
// Strip any DEC 2026 markers and write raw content
// (markers don't help here - this is a static buffer reload, not live Ink redraws)
const cleanBuffer = termData.terminalBuffer.replace(DEC_SYNC_STRIP_RE, '');
// Use chunked write to avoid UI freeze with large buffers (can be 1-2MB)
await this.chunkedTerminalWrite(cleanBuffer);
}
// Fire-and-forget resize — don't block on it
this.sendResize(data.id);
// Re-position local echo overlay at new prompt location
this._localEchoOverlay?.rerender();
} catch (err) {
console.error('clearTerminal refresh failed:', err);
}
}
}
_onSessionCompletion(data) {
this.totalCost += data.cost || 0;
this.updateCost();
if (data.id === this.activeSessionId) {
this.terminal.writeln('');
this.terminal.writeln(`\x1b[1;32m Done (Cost: $${(data.cost || 0).toFixed(4)})\x1b[0m`);
}
}
_onSessionError(data) {
if (data.id === this.activeSessionId) {
this.terminal.writeln(`\x1b[1;31m Error: ${data.error}\x1b[0m`);
}
this._notifySession(data.id, 'critical', 'session-error', 'Session Error', data.error || 'Unknown error');
}
_onSessionExit(data) {
if (this._wsSessionId === data.id) this._disconnectWs();
const session = this.sessions.get(data.id);
if (session) {
session.status = 'stopped';
this.renderSessionTabs();
if (data.id === this.activeSessionId) this._updateLocalEchoState();
}
// Notify on unexpected exit (non-zero code)
if (data.code && data.code !== 0) {
this._notifySession(data.id, 'critical', 'session-crash', 'Session Crashed', `Exited with code ${data.code}`);
}
}
_onSessionIdle(data) {
const session = this.sessions.get(data.id);
if (session) {
session.status = 'idle';
this.renderSessionTabs();
this.sendPendingCtrlL(data.id);
if (data.id === this.activeSessionId) this._updateLocalEchoState();
}
// Start stuck detection timer (only if no respawn running)
if (!this.respawnStatus[data.id]?.enabled) {
const threshold = this.notificationManager?.preferences?.stuckThresholdMs || 600000;
clearTimeout(this.idleTimers.get(data.id));
this.idleTimers.set(data.id, setTimeout(() => {
this._notifySession(data.id, 'warning', 'session-stuck', 'Session Idle', `Idle for ${Math.round(threshold / 60000)}+ minutes`);
this.idleTimers.delete(data.id);
}, threshold));
}
}
_onSessionWorking(data) {
const session = this.sessions.get(data.id);
if (session) {
session.status = 'busy';
// Only clear tab alert if no pending hooks (permission_prompt, elicitation_dialog, etc.)
if (!this.pendingHooks.has(data.id)) {
this.tabAlerts.delete(data.id);
}
this.renderSessionTabs();
this.sendPendingCtrlL(data.id);
if (data.id === this.activeSessionId) this._updateLocalEchoState();
}
// Clear stuck detection timer
const timer = this.idleTimers.get(data.id);
if (timer) {
clearTimeout(timer);
this.idleTimers.delete(data.id);
}
}
_onSessionAutoClear(data) {
if (data.sessionId === this.activeSessionId) {
this.showToast(`Auto-cleared at ${data.tokens.toLocaleString()} tokens`, 'info');
this.updateRespawnTokens(0);
}
this._notifySession(data.sessionId, 'info', 'auto-clear', 'Auto-Cleared', `Context reset at ${(data.tokens || 0).toLocaleString()} tokens`);
}
_onSessionLimitPauseScheduled(data) {
const session = this.sessions.get(data.sessionId);
if (session) session.autoResumeAt = data.resumeAt;
const at = new Date(data.resumeAt).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
if (data.sessionId === this.activeSessionId) {
this.showToast(`Usage limit reached — auto-resume at ${at}`, 'warning');
}
this._notifySession(data.sessionId, 'warning', 'limit-pause', 'Usage Limit Reached', `Auto-resume scheduled for ${at}`);
this.updateAutoResumeStatus(data.sessionId);
}
_onSessionLimitResume(data) {
const session = this.sessions.get(data.sessionId);
if (session) session.autoResumeAt = undefined;
if (data.sessionId === this.activeSessionId) {
this.showToast('Usage limit reset — work resumed automatically', 'success');
}
this._notifySession(data.sessionId, 'info', 'limit-resume', 'Auto-Resumed', 'Usage limit reset — continuing work');
this.updateAutoResumeStatus(data.sessionId);
}
_onSessionLimitResumeCancelled(data) {
const session = this.sessions.get(data.sessionId);
if (session) session.autoResumeAt = undefined;
this.updateAutoResumeStatus(data.sessionId);
}
// COD-118: the interactive PTY exit circuit breaker tripped (repeated non-zero exits).
// The errored status itself arrives via session:updated; this just surfaces a toast for
// diagnostic clarity so a silently-looping session is obvious. Restart clears the breaker.
_onSessionRespawnBreakerTripped(data) {
const session = this.sessions.get(data.sessionId);
const label = session?.name || 'Session';
this.showToast?.(`${label} stopped: repeated crashes detected. Restart to retry.`, 'error');
}
_onSessionCliInfo(data) {
const session = this.sessions.get(data.sessionId);
if (session) {
if (data.version) session.cliVersion = data.version;
if (data.model) session.cliModel = data.model;
if (data.accountType) session.cliAccountType = data.accountType;
if (data.latestVersion) session.cliLatestVersion = data.latestVersion;
}
if (data.sessionId === this.activeSessionId) {
this.updateCliInfoDisplay();
}
}
// Claude plan usage limits (5-hour + weekly) — account-global, so the latest
// sample from any session drives the shared header chip.
_onSessionStatusTelemetry(data) {
this.updatePlanUsageChip(data);
// Persist last-known so the chip shows immediately on the next page load /
// SSE reconnect, instead of staying blank until a session next renders.
try {
localStorage.setItem('codeman:planUsage', JSON.stringify({ t: Date.now(), data }));
} catch {}
}
// Repopulate the chip from the last-known value on page load (account-global,
// slow-moving; ignored if older than 12h). Live events refresh it.
restorePlanUsageChip() {
try {
const raw = localStorage.getItem('codeman:planUsage');
if (!raw) return;
const saved = JSON.parse(raw);
if (saved?.data && Date.now() - (saved.t || 0) < 12 * 3600 * 1000) {
this.updatePlanUsageChip(saved.data);
}
} catch {}
}
updatePlanUsageChip(data) {
const chip = document.getElementById('planUsageChip');
if (!chip || !data) return;
const pct = (w) => (w && typeof w.usedPercentage === 'number' ? Math.round(w.usedPercentage) : null);
const five = pct(data.fiveHour);
const seven = pct(data.sevenDay);
if (five === null && seven === null) return;
// Per-window color by how much is used up: green < 60%, yellow 60–84%, red ≥ 85%.
const colorClass = (p) => (p >= 85 ? 'pu-red' : p >= 60 ? 'pu-yellow' : 'pu-green');
// innerHTML here is XSS-safe ONLY because every interpolated value is a
// coerced finite number and the labels/classes are fixed literals. If a
// string field (e.g. modelDisplayName, which the route also broadcasts) is
// ever shown in this chip, render it via textContent — never interpolate an
// untrusted string into this template.
const seg = (label, p) => {
if (p === null) return '';
const n = Math.round(Number(p));
if (!Number.isFinite(n)) return '';
return `<span class="pu-win"><span class="pu-label">${label}</span><span class="pu-val ${colorClass(n)}">${n}%</span></span>`;
};
chip.innerHTML = [seg('5h', five), seg('7d', seven)].filter(Boolean).join('<span class="pu-sep">·</span>');
const resetStr = (w) => (w && w.resetAt ? new Date(w.resetAt).toLocaleString() : '—');
chip.title =
`Claude plan usage\n` +
`5-hour limit: ${five ?? '—'}% used (resets ${resetStr(data.fiveHour)})\n` +
`Weekly limit: ${seven ?? '—'}% used (resets ${resetStr(data.sevenDay)})`;
}
// Scheduled runs
_onScheduledCreated(data) {
this.currentRun = data;
this.showTimer();
}
_onScheduledUpdated(data) {
this.currentRun = data;
this.updateTimer();
}
_onScheduledCompleted(data) {
this.currentRun = data;
this.hideTimer();
this.showToast('Scheduled run completed!', 'success');
}
_onScheduledStopped() {
this.currentRun = null;
this.hideTimer();
}
// ═══════════════════════════════════════════════════════════════
// Connection Status, Input Queuing & State Initialization
// ═══════════════════════════════════════════════════════════════
setConnectionStatus(status) {
this._connectionStatus = status;
// Track when the transport left 'connected'. The connection-loss UI waits
// out a deploy-length blip before showing anything (see constants.js).
if (status === 'connected') {
this._connDownSince = null;
this._nextSseRetryAt = null;
this._offlineOverlayDismissed = false;
} else if (this._connDownSince === null) {
this._connDownSince = Date.now();
}
this._updateConnectionIndicator();
this._updateConnectionLossUi();
if (status === 'connected') {
// Reconnected (SSE) — push any durably-queued input out immediately
// instead of waiting for the next 2s sweep.
this._redeliverSweep();
}
}
// ═══════════════════════════════════════════════════════════════
// WebSocket Terminal I/O
// ═══════════════════════════════════════════════════════════════
/**
* Open a WebSocket for terminal I/O on the given session.
* Replaces HTTP POST input and SSE terminal output with a single
* bidirectional connection. Falls back to SSE+POST if WS fails.
*/
_connectWs(sessionId) {
this._disconnectWs();
this._wsState = 'connecting';
this._updateConnectionIndicator();
const proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
// Pass a per-TAB identity on the upgrade URL so the server's connection
// registry scopes the per-session limit by connection (COD-137): a same-tab
// reconnect supersedes its own socket instead of consuming a new slot and
// tripping a spurious 4008, while two tabs of the same browser (which share
// the localStorage clientId) each keep their own socket. The bare clientId
// still rides the input frames for seq dedup. Omitted if clientId is
// unavailable (server then treats the upgrade as anonymous — still admitted
// up to the limit).
const cid = this._clientId ? `${this._clientId}:${this._wsTabNonce}` : '';
const cidQuery = cid ? `?cid=${encodeURIComponent(cid)}` : '';
const url = `${proto}//${location.host}/ws/sessions/${sessionId}/terminal${cidQuery}`;
const ws = new WebSocket(url);
this._ws = ws;
this._wsSessionId = sessionId;
ws.onopen = () => {
// Only mark ready if this is still the intended session
if (this._ws === ws) {
this._wsReady = true;
this._wsState = 'connected';
this._wsReconnectAttempts = 0;
this._updateConnectionIndicator();
// Send a typed resize over the fresh socket: syncs PTY dims after
// (re)connects AND registers the desktop sizing claim server-side —
// selectSession's earlier resizes ran before this WS existed, so they
// went over HTTP, which never claims (see ws-routes sizingToken).
this.sendResize(sessionId)?.catch?.(() => {});
this._startMobileResizeRetry(sessionId);
// Flush any durably-queued input over the fresh socket (covers frames a
// prior half-open socket silently dropped, and input typed while offline).
this._onWsReady(sessionId);
}
};
ws.onmessage = (event) => {
if (this._ws !== ws) return;
// Mark the socket as alive on every received frame (output, ACK, etc.) so
// the redeliver sweep only force-closes a genuinely silent connection.
this._wsLastRecvAt = Date.now();
try {
const msg = JSON.parse(event.data);
if (msg.t === 'o') {
// Terminal output — route through the same batching pipeline as SSE
this._onSessionTerminal({ id: sessionId, data: msg.d });
} else if (msg.t === 'c') {
this._onSessionClearTerminal({ id: sessionId });
} else if (msg.t === 'r') {
this._onSessionNeedsRefresh({ id: sessionId });
} else if (msg.t === 'ia') {
// Input ACK — the server applied (or deduped) this seq; drop it from
// the durable queue so it can never be re-delivered/lost.
this._onWsInputAck(msg.seq);
}
} catch {
// Ignore malformed messages
}
};
ws.onclose = (event) => {
if (this._ws !== ws) return;
this._ws = null;
this._wsSessionId = null;
this._wsReady = false;
this._stopMobileResizeRetry();
// Decide what to do next from the close code + how many consecutive
// reconnects we've already made (pure policy in constants.js):
// reconnect → transient (server restart, network blip, ping timeout);
// schedule a backoff retry while this session stays active.
// retry-fallback → too-many-connections / unknown rejection; show the HTTP
// fallback but keep retrying so we return to WS when it clears.
// give-up → 4004 (not found) / 4009 (terminated); the session is gone.
// _disconnectWs() nulls onclose for intentional disconnects, so we never land here for those.
const plan = window.CodemanWsReconnect.plan(event.code, this._wsReconnectAttempts || 0);
_crashDiag.log(
`WS CLOSE code=${event.code} reason=${event.reason || ''} action=${plan.action} attempts=${this._wsReconnectAttempts || 0}`
);
const stillActive = this.activeSessionId === sessionId;
if (plan.action === 'give-up') {
this._wsState = stillActive ? 'fallback' : 'disconnected';
this._updateConnectionIndicator();
} else if (plan.action === 'reconnect') {
if (stillActive) {
this._wsState = 'reconnecting';
this._updateConnectionIndicator();
const delay = plan.delayMs + Math.floor(Math.random() * 250); // jitter to de-sync herds
this._wsReconnectAttempts = (this._wsReconnectAttempts || 0) + 1;
this._wsReconnectTimer = setTimeout(() => {
this._wsReconnectTimer = null;
if (this.activeSessionId === sessionId) {
this._connectWs(sessionId);
}
}, delay);
} else {
this._wsState = 'disconnected';
this._updateConnectionIndicator();
}
} else {
// retry-fallback: surface the HTTP fallback, but keep trying on a bounded
// timer so the transport returns to WS once the transient condition clears.
this._wsState = stillActive ? 'fallback' : 'disconnected';
this._updateConnectionIndicator();
if (stillActive) {
this._wsReconnectAttempts = (this._wsReconnectAttempts || 0) + 1;
this._wsReconnectTimer = setTimeout(() => {
this._wsReconnectTimer = null;
if (this.activeSessionId === sessionId) {
this._connectWs(sessionId);
}
}, plan.delayMs);
}
}
};
ws.onerror = () => {
// onclose will fire after onerror — cleanup happens there
};
}
/** Close the active WebSocket connection (if any). */
_disconnectWs() {
this._clearTimer('_wsReconnectTimer');
// Deliberately do NOT reset _wsReconnectAttempts here: _connectWs() calls
// this first, so a reset would restart the exponential backoff ladder at
// attempt 0 on every retry (≈0ms tight reconnect loop during an outage).
// ws.onopen zeroes the counter once a connection actually succeeds.
this._wsState = 'disconnected';
this._stopMobileResizeRetry();
if (this._ws) {
this._ws.onclose = null; // Prevent re-entrant cleanup
this._ws.close();
this._ws = null;
this._wsSessionId = null;
this._wsReady = false;
}
}
/**
* Small-viewport claim-idle retry. While a desktop sizing claim is "hot",
* the server ignores this device's resize (Session.DESKTOP_CLAIM_IDLE_MS),
* and the single resize sent on attach is deduped client-side — without a
* retry, a phone that attached under an active desktop would render a
* desktop-width stream forever. Re-send the current dims periodically (a
* server-side no-op once the pane already matches) so the pane reflows to
* this device shortly after the desktop goes idle. Visible-tab only: a
* phone in a pocket must not steal the pane from an active desktop.
*/
_startMobileResizeRetry(sessionId) {
this._stopMobileResizeRetry();
const type =
typeof MobileDetection !== 'undefined' && MobileDetection.getDeviceType
? MobileDetection.getDeviceType()
: 'desktop';
if (type === 'desktop') return;
this._mobileResizeRetryTimer = setInterval(() => {
if (document.visibilityState !== 'visible') return;
if (!this._wsReady || this._wsSessionId !== sessionId) return;
// Same guard as throttledResize: while the virtual keyboard is up, a
// fit()+SIGWINCH at the shrunken row count makes Ink re-render garbage
// and shifts the accessory toolbar mid-typing. Retry after it closes.
if (typeof KeyboardHandler !== 'undefined' && KeyboardHandler.keyboardVisible) return;
this.sendResize(sessionId)?.catch?.(() => {});
}, MOBILE_RESIZE_RETRY_MS);
}
_stopMobileResizeRetry() {
if (this._mobileResizeRetryTimer) {
clearInterval(this._mobileResizeRetryTimer);
this._mobileResizeRetryTimer = null;
}
}
/**
* Public input entry point — name/signature kept for all call sites.
* Records the input durably, then delivers it reliably (exactly-once). Never
* blocks the keystroke flush; never silently drops on a half-open socket.
* @param {string} sessionId
* @param {string} input
* @param {{useMux?: boolean}} [opts] - useMux only affects the POST fallback.
*/
_sendInputAsync(sessionId, input, opts) {
if (!sessionId || !input) return;
this._reliableSend(sessionId, input, opts?.useMux === true);
}
/**
* Fire-and-forget input for EPHEMERAL, loss-tolerant streams (e.g. wheel-scroll
* reports). Unlike _sendInputAsync, this never enters the durable seq/ACK queue,
* so it isn't persisted, retried, or counted in the pending-bytes connection
* indicator (which was flickering "11b/22b queued" on every scroll tick). A
* dropped scroll tick is harmless; keystrokes still go through _sendInputAsync.
* The server applies a seq-less {t:'i'} frame / seq-less POST unconditionally
* and sends no ACK (ws-routes.ts, session-routes input handler).
*/
_sendInputEphemeral(sessionId, input) {
if (!sessionId || !input) return;
if (this._ws && this._ws.readyState === WebSocket.OPEN && this._wsSessionId === sessionId) {
try {
this._ws.send(JSON.stringify({ t: 'i', d: input }));
return;
} catch {
// socket died mid-send — fall through to a best-effort POST
}
}
// No usable WS for this session: best-effort POST, not queued. Dropped on
// failure — a scroll tick lost while offline needs no recovery.
try {
fetch(`/api/sessions/${sessionId}/input`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ input }),
keepalive: true,
}).catch(() => {});
} catch {
// ignore — loss-tolerant
}
}
/** Record one input frame and kick delivery. The record lives until ACKed. */
_reliableSend(sessionId, data, useMux) {
const seq = this._nextSeq(sessionId);
const rec = { seq, data, useMux: !!useMux, ts: Date.now(), tries: 0, sentAt: 0 };
let list = this._pendingDeliveries.get(sessionId);
if (!list) {
list = [];
this._pendingDeliveries.set(sessionId, list);
}
list.push(rec);
this._persistReliableState();
this._updateConnectionIndicator();
this._drainSession(sessionId);
}
_nextSeq(sessionId) {
const next = (this._seqCounters.get(sessionId) || 0) + 1;
this._seqCounters.set(sessionId, next);
return next;
}
/** Deliver all unacked records for a session, in seq order. */
_drainSession(sessionId) {
const list = this._pendingDeliveries.get(sessionId);
if (!list || list.length === 0) return;
// Fast path: WebSocket open for this session — fire each not-yet-sent record
// over the single ordered stream. They stay pending until the server ACKs
// them ({t:'ia'}); a frame swallowed by a half-open socket is re-sent after
// the sweep force-reconnects (which resets sentAt=0 in _onWsReady).
if (this._ws && this._ws.readyState === WebSocket.OPEN && this._wsSessionId === sessionId) {
for (const rec of list) {
if (rec.sentAt !== 0) continue;
try {
this._ws.send(JSON.stringify({ t: 'i', d: rec.data, seq: rec.seq, cid: this._clientId }));
rec.sentAt = Date.now();
rec.tries++;
} catch {
break; // socket died mid-send — reconnect/POST drainer retries
}
}
return;
}
// Slow path: no WS — POST records in order, awaiting each (the HTTP 2xx is
// the ACK). Serialized per session so seq order survives async fetches.
if (this._postDraining.has(sessionId)) return;
this._postDraining.add(sessionId);
(async () => {
try {
for (;;) {
const cur = this._pendingDeliveries.get(sessionId);
if (!cur || cur.length === 0) break;
// If the WebSocket came back mid-drain, yield to it (the acked stream)
// so we don't redundantly re-POST what onopen is already re-sending.
if (this._ws && this._ws.readyState === WebSocket.OPEN && this._wsSessionId === sessionId) {
break;
}
const rec = cur[0];
rec.tries++;
rec.sentAt = Date.now();
let resp = null;
try {
const body = { input: rec.data, seq: rec.seq, clientId: this._clientId };
if (rec.useMux) body.useMux = true;
resp = await fetch(`/api/sessions/${sessionId}/input`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(body),
keepalive: rec.data.length < 65536,
});
} catch {
resp = null;
}
if (resp && resp.ok) {
this._ackDelivery(sessionId, rec.seq);
} else if (resp && (resp.status === 404 || resp.status === 410)) {
// Session no longer exists — the input can never land. Drop it
// rather than retry forever (not a "lost" prompt: the target is gone).
this._ackDelivery(sessionId, rec.seq);
} else {
break; // offline / 5xx — leave queued; sweep + reconnect retry later
}
}
} finally {
this._postDraining.delete(sessionId);
}
})();
}
/** Drop an ACKed record (by exact seq) and persist. */
_ackDelivery(sessionId, seq) {
const list = this._pendingDeliveries.get(sessionId);
if (list) {
const idx = list.findIndex((r) => r.seq === seq);
if (idx !== -1) {
list.splice(idx, 1);
if (list.length === 0) this._pendingDeliveries.delete(sessionId);
// When nothing is left pending anywhere, flush durable state immediately
// (not debounced) so a reload in the next 250ms can't redeliver an
// already-delivered frame — otherwise localStorage briefly still shows it.
if (this._pendingDeliveries.size === 0) this._persistReliableNow();
else this._persistReliableState();
this._updateConnectionIndicator();
}
}
this.clearPendingHooks?.(sessionId);
}
/** Server input-ACK frame ({t:'ia',seq}) over the WebSocket. */
_onWsInputAck(seq) {
if (this._wsSessionId && Number.isInteger(seq)) this._ackDelivery(this._wsSessionId, seq);
}
/** Called from ws.onopen — flush everything pending over the fresh socket. */
_onWsReady(sessionId) {
const list = this._pendingDeliveries.get(sessionId);
if (list) for (const r of list) r.sentAt = 0; // fresh socket ⇒ re-send all
this._drainSession(sessionId);
}
/**
* Periodic retry. For the active WS session, an oldest frame unacked past the
* timeout means the socket is (half-)dead — close it to force a fast reconnect
* (onclose → reconnect → onopen → _onWsReady re-sends). Other sessions just
* (re)drain over POST.
*/
_redeliverSweep() {
if (this._pendingDeliveries.size === 0) return;
for (const sessionId of [...this._pendingDeliveries.keys()]) {
const list = this._pendingDeliveries.get(sessionId);
if (!list || list.length === 0) continue;
const isActiveWs =
this._ws && this._ws.readyState === WebSocket.OPEN && this._wsSessionId === sessionId;
if (isActiveWs) {
const oldest = list[0];
// Only tear the socket down when the oldest unacked frame is stale AND the
// socket has been silent for the timeout: a connection still delivering
// output/ACKs is alive (the ACK is just behind), so force-closing it would
// cause needless WS↔HTTP flapping. A truly half-open socket goes quiet.
const stale = oldest && oldest.sentAt && Date.now() - oldest.sentAt > this._reliableAckTimeoutMs;
const silent = Date.now() - this._wsLastRecvAt > this._reliableAckTimeoutMs;
if (stale && silent) {
try {
this._ws.close(); // half-open: never recovers on its own — force reconnect
} catch {
/* ignore */
}
continue;
}
if (stale) {
// Stale but the socket is still delivering output: the ACK was lost,
// not the connection. Force-closing isn't warranted (the link is fine),
// but the fast path skips anything with sentAt!==0, so the stranded
// frame would never re-send. Reset sentAt=0 on every stale unacked
// frame so the _drainSession below re-drives them over the live socket
// (server dedups by seq, so a re-sent lost-ACK frame is harmless).
// Frames sent recently (not yet stale) are left untouched.
for (const rec of list) {
if (rec.sentAt && Date.now() - rec.sentAt > this._reliableAckTimeoutMs) rec.sentAt = 0;
}
}
}
this._drainSession(sessionId);
}
}
/** Total bytes/count still awaiting ACK across all sessions (for the indicator). */
_pendingBytes() {
let bytes = 0;
let count = 0;
for (const list of this._pendingDeliveries.values()) {
for (const r of list) {
bytes += r.data.length;
count++;
}
}
return { bytes, count };
}
// ---- durable persistence (localStorage; quota- and disabled-storage-safe) --
_loadReliableState() {
// Stable client identity for server-side dedup across reconnects/reloads.
try {
this._clientId = localStorage.getItem('codeman:clientId') || '';
} catch {
this._clientId = '';
}
if (!this._clientId) {
this._clientId = 'c-' + Math.random().toString(36).slice(2) + '-' + Date.now().toString(36);
try {
localStorage.setItem('codeman:clientId', this._clientId);
} catch {
/* storage disabled — dedup degrades to per-load, still no loss */
}
}
try {
const raw = localStorage.getItem('codeman:pendingInput');
if (!raw) return;
const saved = JSON.parse(raw);
if (saved && saved.seqs) {
for (const [s, n] of Object.entries(saved.seqs)) {
if (Number.isFinite(n)) this._seqCounters.set(s, n);
}
}
if (saved && saved.pending) {
for (const [s, recs] of Object.entries(saved.pending)) {
if (Array.isArray(recs) && recs.length) {
// Reset sentAt so they re-deliver promptly on this fresh load.
this._pendingDeliveries.set(
s,
recs
.filter((r) => r && typeof r.data === 'string' && Number.isInteger(r.seq))
.map((r) => ({
seq: r.seq,
data: r.data,
useMux: !!r.useMux,
ts: r.ts || Date.now(),
tries: 0,
sentAt: 0,
}))
);
}
}
}
} catch {
/* corrupt/parse error — start clean rather than throw */
}
}
_persistReliableState() {
// Debounced — typing without local echo calls this per keystroke.
if (this._persistReliableTimer) return;
this._persistReliableTimer = setTimeout(() => {
this._persistReliableTimer = null;
this._persistReliableNow();
}, 250);
}
_persistReliableNow() {
if (this._persistReliableTimer) {
clearTimeout(this._persistReliableTimer);
this._persistReliableTimer = null;
}
try {
const seqs = {};
for (const [s, n] of this._seqCounters) seqs[s] = n;
const pending = {};
let bytes = 0;
for (const [s, list] of this._pendingDeliveries) {
if (!list.length) continue;
pending[s] = list.map((r) => ({
seq: r.seq,
data: r.data,
useMux: r.useMux,
ts: r.ts,
tries: r.tries,
}));
for (const r of list) bytes += r.data.length;
}
// Bound the persisted backlog. On extreme overflow keep the seq counters
// (so future input stays monotonic and dedup-safe) but skip the payloads —
// the in-memory queue still delivers; only cross-reload durability is lost.
const payload =
bytes > this._reliableMaxBytes ? { seqs } : { seqs, pending };
localStorage.setItem('codeman:pendingInput', JSON.stringify(payload));
} catch {
/* QuotaExceeded or disabled storage — in-memory delivery is unaffected */
}
}
// Pure render of the header connection indicator: reads only `this.*` state,
// touches NO DOM. Returns the exact { display, dotClass, text, title } tuple the
// writer applies. When hidden (display:'none') the other three are normalized to
// '' so the cache compare in _updateConnectionIndicator() is well-defined.
// Every branch/string here must stay byte-identical to what's rendered today.
_computeConnectionDescriptor() {
const { bytes: totalBytes, count } = this._pendingBytes();
const hasQueue = count > 0;
// Only surface a backlog once it's more than a few bytes. A single keystroke
// (1B) ACKs in milliseconds, so without this the label flickered "sending 1B"
// on every key press. Above this threshold means input is genuinely backing up.
const BACKLOG_HINT_BYTES = 4;
const showBacklog = totalBytes > BACKLOG_HINT_BYTES;
const formatBytes = (b) => (b < 1024 ? `${b}B` : `${(b / 1024).toFixed(1)}KB`);
const queuedSuffix = showBacklog ? ` · ${formatBytes(totalBytes)} queued` : '';
// Hard offline (browser reports no network) dominates everything.
if (!this.isOnline || this._connectionStatus === 'offline') {
return {
display: 'flex',
dotClass: 'connection-dot offline',
text: showBacklog ? `Offline (${formatBytes(totalBytes)} queued)` : 'Offline',
title: 'No network connection',
};
}
// With an active terminal, show its transport (WebSocket vs HTTP fallback).
if (this.activeSessionId) {
let cls, label, detail;
switch (this._wsState) {
case 'connected':
cls = 'connected'; label = 'WS'; detail = 'Terminal connected over WebSocket';
break;
case 'fallback':
cls = 'fallback'; label = 'HTTP'; detail = 'WebSocket unavailable — input sent over HTTP';
break;
case 'reconnecting':
cls = 'reconnecting'; label = 'WS…'; detail = 'Reconnecting WebSocket';
break;
case 'connecting':
default:
cls = 'reconnecting'; label = 'WS…'; detail = 'Connecting WebSocket';
break;
}
return {
display: 'flex',
dotClass: `connection-dot ${cls}`,
text: `${label}${queuedSuffix}`,
title: detail,
};
}
// No active terminal — reflect the SSE event stream only when it needs attention.
if (this._connectionStatus === 'reconnecting' || this._connectionStatus === 'disconnected') {
return {
display: 'flex',
dotClass: 'connection-dot reconnecting',
text: showBacklog ? `Reconnecting (${formatBytes(totalBytes)} queued)` : 'Reconnecting...',
title: 'Reconnecting to server',
};
}
// Idle dashboard, healthy stream — hide unless input is genuinely queued.
if (!hasQueue) {
return { display: 'none', dotClass: '', text: '', title: '' };
}
return {
display: 'flex',
dotClass: 'connection-dot draining',
text: showBacklog ? `Sending ${formatBytes(totalBytes)}...` : 'Sending...',
title: 'Delivering queued input',
};
}
_updateConnectionIndicator() {
const indicator = this.$('connectionIndicator');
const dot = this.$('connectionDot');
const text = this.$('connectionText');
if (!indicator || !dot || !text) return;
// Called on EVERY keystroke (_reliableSend) and EVERY ACK (_ackDelivery).
// During fast typing the rendered tuple is usually identical, so skip the DOM
// writes when nothing changed (COD-136) — the compute above is DOM-free.
const next = this._computeConnectionDescriptor();
const prev = this._lastIndicatorDescriptor;
if (
prev &&
prev.display === next.display &&
prev.dotClass === next.dotClass &&
prev.text === next.text &&
prev.title === next.title
) {
return;
}
this._lastIndicatorDescriptor = next;
indicator.style.display = next.display;
if (next.display !== 'none') {
dot.className = next.dotClass;
text.textContent = next.text;
indicator.title = next.title;
}
}
setupOnlineDetection() {
window.addEventListener('online', () => {
this.isOnline = true;
this.reconnectAttempts = 0;
// Restart the grace window: the radio just came back, so the next couple
// of seconds of "not connected" are expected, not a server problem.
this._connDownSince = Date.now();
this.connectSSE();
// Network came back — drain durably-queued input right away.
this._redeliverSweep();
});
window.addEventListener('offline', () => {
this.isOnline = false;
this.setConnectionStatus('offline');
});
}
// ── Connection-loss UI ─────────────────────────────────────────────────────
// Why this exists: the service worker serves the cached app shell, so opening
// Codeman with the server unreachable (phone off the tailnet, VPN down,
// server stopped) rendered a normal-looking but empty dashboard whose only
// hint was an 8px red dot in the header corner. The decision of what to show
// is pure (computeConnectionLossUi in constants.js); this is the writer.
/** Apply the offline banner / overlay for the current connection state. */
_updateConnectionLossUi() {
const policy = window.CodemanConnectionLoss;
const banner = this.$('offlineBanner');
const overlay = this.$('offlineOverlay');
if (!policy || !banner || !overlay) return;
const state = policy.compute({
isOnline: this.isOnline,
status: this._connectionStatus,
// Server state has landed at least once this page load (SSE `init`), so
// there is a UI worth keeping visible behind a non-blocking banner.
everLoaded: this._initGeneration > 0,
downSince: this._connDownSince,
now: Date.now(),
nextRetryAt: this._nextSseRetryAt,
overlayDismissed: this._offlineOverlayDismissed,
retryPending: this._offlineRetryPending,
});
// The ticker drives both the countdown and the grace deadline; neither is
// event-driven, so it must run whenever the transport is down, including
// while the decision is still 'hidden' inside the grace window.
if (this._connDownSince === null) this._stopOfflineTicker();
else this._startOfflineTicker();
const retryLabel = this._offlineRetryPending
? 'Reconnecting…'
: state.retryInSec != null && state.retryInSec > 0
? `Retrying in ${state.retryInSec}s`
: 'Retrying…';
// Called every second by the ticker, so skip the DOM writes when the rendered
// result is unchanged (same reasoning as _updateConnectionIndicator).
const key = `${state.mode}|${state.kind}|${retryLabel}`;
if (key === this._lastOfflineUiKey) return;
this._lastOfflineUiKey = key;
banner.hidden = state.mode !== 'banner';
overlay.hidden = state.mode !== 'overlay';
document.body.classList.toggle('connection-lost', state.mode !== 'hidden');
if (state.mode === 'banner') {
const text = this.$('offlineBannerText');
const detail = this.$('offlineBannerDetail');
if (text) text.textContent = state.title;
if (detail) detail.textContent = retryLabel;
} else if (state.mode === 'overlay') {
const title = this.$('offlineOverlayTitle');
const body = this.$('offlineOverlayBody');
const host = this.$('offlineOverlayHost');
const status = this.$('offlineOverlayStatus');
if (title) title.textContent = state.title;
if (body) body.textContent = state.detail;
if (host) host.textContent = location.host;
if (status) status.textContent = retryLabel;
}
}
_startOfflineTicker() {
if (this._offlineUiTicker) return;
this._offlineUiTicker = setInterval(() => this._updateConnectionLossUi(), 1000);
}
_stopOfflineTicker() {
if (!this._offlineUiTicker) return;
clearInterval(this._offlineUiTicker);
this._offlineUiTicker = null;
}
/** Retry button on the banner/overlay: reconnect now instead of waiting out
* the backoff (capped at 30s, and the WS plan can give up entirely). */
retryConnection() {
this._offlineRetryPending = true;
this._nextSseRetryAt = null;
this.reconnectAttempts = 0;
this._clearTimer('sseReconnectTimeout');
this.isOnline = navigator.onLine;
this._lastOfflineUiKey = '';
this._updateConnectionLossUi();
this.connectSSE();
// The terminal socket does not always come back on its own (planWsReconnect
// 'give-up'), so the same button re-arms it.
if (this.activeSessionId && this._wsState !== 'connected') {
this._wsReconnectAttempts = 0;
this._connectWs(this.activeSessionId);
}
this._clearTimer('_offlineRetryTimer');
this._offlineRetryTimer = setTimeout(() => {
this._offlineRetryPending = false;
this._lastOfflineUiKey = '';
this._updateConnectionLossUi();
}, 1500);
}
/** "Show cached view": demote the blocking overlay to the banner for the rest
* of this outage, so the cached UI can be inspected offline. */
dismissOfflineOverlay() {
this._offlineOverlayDismissed = true;
this._lastOfflineUiKey = '';
this._updateConnectionLossUi();
}
/** Show/hide the CJK input textarea based on user setting or server override */
_updateCjkInputState() {
const cjkEl = document.getElementById('cjkInput');
if (!cjkEl) return;
const settings = this.loadAppSettingsFromStorage();
const defaults = this.getDefaultSettings?.() || {};
// Mobile defaults ship cjkInputEnabled: false (native terminal input by
// default on touch), but an explicit user enable is honored everywhere —
// the App Settings toggle must not be a silent no-op on phones.
// The welcome/home screen (no active session) has nothing to type into.
// Force-hide the CJK textarea there — otherwise the `position: fixed`
// `.cjk-input-visible` rule floats it over the welcome overlay and blocks
// content. Re-synced on session enter/leave via hideWelcome()/showWelcome().
const cjkUserEnabled =
this._serverCjkOverride || (settings.cjkInputEnabled ?? defaults.cjkInputEnabled ?? false);
const showCjk = cjkUserEnabled && !!this.activeSessionId;
cjkEl.classList.toggle('cjk-input-visible', !!showCjk);
document.body.classList.toggle('cjk-input-visible', !!showCjk);
cjkEl.style.display = showCjk ? 'block' : 'none';
cjkEl.setAttribute('aria-hidden', showCjk ? 'false' : 'true');
if (!showCjk) window.cjkActive = false;
if (typeof KeyboardHandler !== 'undefined') KeyboardHandler.updateLayoutForKeyboard();
}
/**
* Reset all app state maps, timers, and handlers to a clean baseline.
* Called by handleInit() on SSE reconnect / page reload to prevent
* memory leaks and stale data.
*/
_resetAllAppState() {
this.sessions.clear();
this.ralphStates.clear();
this.terminalBuffers.clear();
this.terminalBufferCache.clear();
this._xtermSnapshots?.clear();
this.projectInsights.clear();
this.teams.clear();
this.teamTasks.clear();
// Clear all idle timers to prevent stale timers from firing
for (const timer of this.idleTimers.values()) {
clearTimeout(timer);
}
this.idleTimers.clear();
// Clear flicker filter state
this._clearTimer('flickerFilterTimeout');
this.flickerFilterBuffer = '';
this.flickerFilterActive = false;
// Clear pending terminal writes
this._clearTimer('syncWaitTimeout');
this.pendingWrites = [];
this.writeFrameScheduled = false;
this._isLoadingBuffer = false;
this._loadBufferQueue = null;
this._bufferLoadOwner = null;
// Abort any in-flight chunkedTerminalWrite (SSE reconnect reloads buffers)
this._chunkedWriteGen = (this._chunkedWriteGen || 0) + 1;
// Preserve local echo overlay text across SSE reconnect — just hide until
// terminal buffer reloads and prompt is visible again. _render() re-scans
// for the ❯ prompt on every call, so rerender() after buffer load repositions it.
this._localEchoOverlay?.rerender();
// Deliberate asymmetry: buffer-mode pending text SURVIVES reconnect (not
// yet sent); predictions do not (their keystrokes were already delivered).
this._predictiveEcho?.clearPredictions();
// Clear pending hooks
this.pendingHooks.clear();
// Clear approvals (re-seeded from GET /api/approvals right after init)
this.approvals?.clear();
// Clear parent name cache (prevents stale session name entries accumulating)
if (this._parentNameCache) this._parentNameCache.clear();
// Clear subagent activity/results maps (prevents leaks if data.subagents is missing)
this.subagentActivity.clear();
this.subagentToolResults.clear();
// Clear ultracode workflow run state (re-seeded from data.workflowRuns below)
if (this.workflowRuns) this.workflowRuns.clear();
if (this.workflowRunDetails) this.workflowRunDetails.clear();
this.activeWorkflowRunId = null;
this.activeWorkflowPhaseIndex = null;
// Clean up mobile/keyboard handlers and re-init (prevents listener accumulation on reconnect)
MobileDetection.cleanup();
KeyboardHandler.cleanup();
MobileDetection.init();
KeyboardHandler.init();
// Clear tab alerts
this.tabAlerts.clear();
this.attachmentHistoryCounts.clear();
// Clear shown completions (used for duplicate notification prevention)
if (this._shownCompletions) {
this._shownCompletions.clear();
}
// Clear notification manager title flash interval to prevent memory leak
if (this.notificationManager?.titleFlashInterval) {
clearInterval(this.notificationManager.titleFlashInterval);
this.notificationManager.titleFlashInterval = null;
}
// Clear notification manager grouping timeouts (prevents orphaned timers)
if (this.notificationManager?.groupingMap) {
for (const { timeout } of this.notificationManager.groupingMap.values()) {
clearTimeout(timeout);
}
this.notificationManager.groupingMap.clear();
}
// Disconnect terminal resize observer (prevents memory leak on reconnect)
if (this.terminalResizeObserver) {
this.terminalResizeObserver.disconnect();
this.terminalResizeObserver = null;
}
// Clear any other orphaned timers
if (this.planLoadingTimer) {
clearInterval(this.planLoadingTimer);
this.planLoadingTimer = null;
}
if (this.timerCountdownInterval) {
clearInterval(this.timerCountdownInterval);
this.timerCountdownInterval = null;
}
if (this.runSummaryAutoRefreshTimer) {
clearInterval(this.runSummaryAutoRefreshTimer);
this.runSummaryAutoRefreshTimer = null;
}
}
handleInit(data) {
// Clear the init fallback timer since we got data
this._clearTimer('_initFallbackTimer');
const gen = ++this._initGeneration;
// CJK input form: controlled by user setting (with server env as override)
this._serverCjkOverride = data.inputCjkForm || false;
this._updateCjkInputState();
// Plan-usage chip: server's last-known telemetry, so it shows immediately on
// a fresh load / reconnect (authoritative; wins over the localStorage restore).
if (data.planUsage) this.updatePlanUsageChip(data.planUsage);
// Update version displays (header and toolbar)
if (data.version) {
const versionEl = this.$('versionDisplay');
const headerVersionEl = this.$('headerVersion');
if (versionEl) {
versionEl.textContent = `v${data.version}`;
versionEl.title = `Codeman v${data.version}`;
}
if (headerVersionEl) {
headerVersionEl.textContent = `v${data.version}`;
headerVersionEl.title = `Codeman v${data.version}`;
}
}
// Stop any active voice recording on reconnect
VoiceInput.cleanup();
this._resetAllAppState();
data.sessions.forEach(s => {
this.sessions.set(s.id, s);
// Load ralph state from session data (only if not explicitly closed by user)
if ((s.ralphLoop || s.ralphTodos) && !this.ralphClosedSessions.has(s.id)) {
this.ralphStates.set(s.id, {
loop: s.ralphLoop || null,
todos: s.ralphTodos || []
});
}
});
// Server is source of truth for open sessions — don't resurrect stale tabs
// from localStorage (would show phantom "ended" tabs when a session was closed
// on another device).
try { localStorage.removeItem('codeman-tab-meta'); } catch {}
// COD-131: server is authoritative for global tab order. Seed localStorage
// from the server snapshot (if present) so syncSessionOrder() reconciles
// against the cross-device order rather than this device's stale local copy.
if (Array.isArray(data.sessionOrder) && data.sessionOrder.length) {
try { localStorage.setItem('codeman-session-order', JSON.stringify(data.sessionOrder)); } catch {}
}
// Sync sessionOrder with current sessions (preserve order, add new, remove stale)
this.syncSessionOrder();
if (data.respawnStatus) {
this.respawnStatus = data.respawnStatus;
} else {
// Clear respawn status on init if not provided (prevents stale data)
this.respawnStatus = {};
}
// Clean up respawn state for sessions that no longer exist
this.respawnTimers = {};
this.respawnCountdownTimers = {};
this.respawnActionLogs = {};
// Store global stats for aggregate tracking
if (data.globalStats) {
this.globalStats = data.globalStats;
}
this.totalCost = data.sessions.reduce((sum, s) => sum + (s.totalCost || 0), 0);
this.totalCost += data.scheduledRuns.reduce((sum, r) => sum + (r.totalCost || 0), 0);
const activeRun = data.scheduledRuns.find(r => r.status === 'running');
if (activeRun) {
this.currentRun = activeRun;
this.showTimer();
}
this.updateCost();
this.renderSessionTabs();
// Approvals Inbox: re-seed pending prompts from the server so alerts
// survive reloads and SSE reconnects (methods in approvals-ui.js).
this.seedApprovals?.();
// Start/stop system stats polling based on session count
if (this.sessions.size > 0) {
this.startSystemStatsPolling();
} else {
this.stopSystemStatsPolling();
}
// CRITICAL: Clean up all floating windows before loading new subagents
// This prevents memory leaks from ResizeObservers, EventSources, and DOM elements
this.cleanupAllFloatingWindows();
// Load subagents - clear all related maps to prevent memory leaks on reconnect
if (data.subagents) {
this.subagents.clear();
this.subagentActivity.clear();
this.subagentToolResults.clear();
data.subagents.forEach(s => {
this.subagents.set(s.agentId, s);
});
this.renderSubagentPanel();
// Load PERSISTENT parent associations FIRST, before restoring windows
// This ensures connection lines are drawn to the correct tabs
// Clear the in-memory map first to ensure fresh state from storage
this.subagentParentMap.clear();
this.loadSubagentParentMap().then(() => {
// Apply stored parent associations to agents
for (const [agentId, sessionId] of this.subagentParentMap) {
const agent = this.subagents.get(agentId);
if (agent && this.sessions.has(sessionId)) {
agent.parentSessionId = sessionId;
const session = this.sessions.get(sessionId);
if (session) {
agent.parentSessionName = this.getSessionName(session);
}
this.subagents.set(agentId, agent);
}
}
// Now try to find parents for any agents that don't have one yet
for (const [agentId] of this.subagents) {
if (!this.subagentParentMap.has(agentId)) {
this.findParentSessionForSubagent(agentId);
}
}
// Finally, restore window states (this opens windows with correct parent info)
this.restoreSubagentWindowStates();
});
}
// Seed ultracode workflow runs (LEFT-pane summaries) from the snapshot
if (data.workflowRuns) {
this.seedWorkflowRuns(data.workflowRuns);
}
// Restore previously active session (survives page reload + SSE reconnect)
// Must always re-select because handleInit clears terminal state above.
// Reset activeSessionId so selectSession doesn't early-return.
// Guard: skip if a newer handleInit has already started (race between loadState + SSE init).
if (gen !== this._initGeneration) return;
// Solo (detached) window: always show exactly the target session, ignoring
// the dashboard's "restore last active" logic.
if (this.isSoloWindow) {
this._applySoloMode();
return;
}
const previousActiveId = this.activeSessionId;
this.activeSessionId = null;
if (this.sessionOrder.length > 0) {
// Priority: current active > localStorage > first session
let restoreId = previousActiveId;
if (!restoreId || !this.sessions.has(restoreId)) {
try { restoreId = localStorage.getItem('codeman-active-session'); } catch {}
}
if (restoreId && this.sessions.has(restoreId)) {
this.selectSession(restoreId);
} else {
this.selectSession(this.sessionOrder[0]);
}
}
}
async loadState() {
try {
const res = await fetch('/api/status');
const data = await res.json();
this.handleInit(data?.data ?? {});
} catch (err) {
console.error('Failed to load state:', err);
}
}
// ═══════════════════════════════════════════════════════════════
// Debounce Utility
// ═══════════════════════════════════════════════════════════════
/** Debounce a method call using a named timer key. */
_debouncedCall(timerKey, fn, delayMs = 100) {
if (this._debounceTimers[timerKey]) {
clearTimeout(this._debounceTimers[timerKey]);
}
this._debounceTimers[timerKey] = setTimeout(() => {
this._debounceTimers[timerKey] = null;
fn.call(this);
}, delayMs);
}
// ═══════════════════════════════════════════════════════════════
// Session List Layout (header strip ⟷ collapsible left sidebar)
// ═══════════════════════════════════════════════════════════════
/**
* 'header' | 'sidebar'. Solo (detached single-session) windows are ALWAYS
* 'header': they show exactly one session, so a session list is noise — and
* #sessionTabs must never be parked inside the display:none <aside>, where
* updateTabOverflowMode() would measure 0/0 and the inline rename input would
* get zero geometry.
*/
getSessionListLayout() {
if (this.soloSessionId) return 'header';
const settings = this.loadAppSettingsFromStorage();
const defaults = this.getDefaultSettings();
const layout = settings.sessionListLayout ?? defaults.sessionListLayout ?? 'header';
return layout === 'sidebar' ? 'sidebar' : 'header';
}
/**
* Reads the APPLIED layout off <html>, not the settings blob: this is called
* per dragover event and per tab in render loops, and getSessionListLayout()
* re-parses localStorage on every call. The attribute is written by the
* pre-paint script in index.html and thereafter only by applySessionListLayout(),
* so it is authoritative from the very first frame.
*/
isSessionSidebarActive() {
return document.documentElement.dataset.sessionList === 'sidebar';
}
/**
* True where the sidebar is a MODAL off-canvas drawer over the terminal
* instead of a docked column.
*
* That behaviour is defined purely in mobile.css, which index.html loads with
* media="(max-width: 1023px)" — so this must test the SAME breakpoint.
* MobileDetection.getDeviceType() is NOT usable here: it calls anything
* >= 768px 'desktop', which would leave 768-1023px (iPad portrait, a narrowed
* desktop window) with overlay CSS but docked-sidebar logic — drawer opens
* itself on load, tapping a session doesn't dismiss it, Escape does nothing.
* Mirrored in the pre-paint script in index.html.
*/
_isSessionSidebarOverlay() {
return window.innerWidth < 1024;
}
/**
* Collapse state is per-device and lives in its OWN localStorage key, not in
* the app-settings blob: saveAppSettings() rebuilds that blob from the DOM
* controls, so any key without a control is silently wiped on every Save.
* Precedent: codeman:skin, codeman-session-order, codeman-active-session.
*/
isSessionSidebarCollapsed() {
// In-memory intent wins over storage: where localStorage throws (Safari
// private mode, disabled storage, quota) the write in toggleSessionSidebar()
// is a no-op, and re-reading here would return the OLD value — the sidebar
// would refuse to collapse at all. Persistence degrades, the control does not.
if (this._sidebarCollapsedOverride !== undefined) return this._sidebarCollapsedOverride;
let raw = null;
try {
raw = localStorage.getItem('codeman-sidebar-collapsed');
} catch {}
// Never chosen yet: the docked desktop sidebar starts open, the overlay
// drawer starts CLOSED — "expanded" there would mean a drawer covering the
// terminal on every cold load.
if (raw === null) return this._isSessionSidebarOverlay();
return raw === '1';
}
/**
* True when this keydown is the sidebar-toggle chord AND toggling would
* actually do something. Used by terminal-ui.js's custom key handler to keep
* the chord out of the PTY: the document CAPTURE handler has already toggled
* the sidebar by the time xterm sees the event, but its preventDefault() does
* NOT stop xterm — without this gate Alt+B would ALSO write ESC b into the
* live session, which readline/Ink read as backward-word and which walks the
* cursor back through whatever the user was typing (same trap as COD-153).
*
* Deliberately registry-aware and gated on the sidebar being active, so a
* rebound/disabled shortcut — and the default header layout, where the toggle
* is a no-op — leave Meta-b reaching the terminal exactly as before.
*/
shouldToggleSessionSidebarFromShortcut(e) {
if (!e) return false;
// Every dispatchable binding requires Ctrl/Cmd/Alt, so plain typing exits
// before any registry work — this runs on the xterm keydown hot path.
if (!e.ctrlKey && !e.metaKey && !e.altKey) return false;
if (!this.isSessionSidebarActive()) return false;
if (typeof this.getShortcutRegistry !== 'function' || typeof this.matchesShortcutEvent !== 'function') {
return false;
}
const shortcut = this.getShortcutRegistry().find((s) => s.id === 'toggle-session-sidebar');
if (!shortcut || shortcut.disabled) return false;
return this.matchesShortcutEvent(e, shortcut);
}
/**
* Move the ONE #sessionTabs element between its two hosts and set the layout
* attributes that all the sidebar CSS keys off.
*
* Never clones or recreates the node: this.$('sessionTabs') caches elements by
* id and never invalidates, and settings-ui.js / webview-tabs.js resolve the
* same id independently. A rebuilt container would leave every consumer
* writing into a detached orphan — silently, with no error.
*/
applySessionListLayout() {
const mode = this.getSessionListLayout();
const collapsed = this.isSessionSidebarCollapsed();
const prevMode = document.documentElement.dataset.sessionList;
const tabsEl = document.getElementById('sessionTabs');
const headerHost = document.getElementById('sessionTabsHost');
const sidebarList = document.getElementById('sessionSidebarList');
if (!tabsEl || !headerHost || !sidebarList) return;
const host = mode === 'sidebar' ? sidebarList : headerHost;
if (tabsEl.parentElement !== host) host.appendChild(tabsEl);
document.documentElement.dataset.sessionList = mode;
document.documentElement.dataset.sidebar = collapsed ? 'collapsed' : 'expanded';
tabsEl.setAttribute('aria-orientation', mode === 'sidebar' ? 'vertical' : 'horizontal');
const btn = document.getElementById('sidebarToggleBtn');
if (btn) {
btn.classList.toggle('btn-sidebar-toggle--hidden', mode !== 'sidebar');
const label = collapsed ? 'Expand session sidebar' : 'Collapse session sidebar';
btn.setAttribute('aria-expanded', collapsed ? 'false' : 'true');
btn.setAttribute('aria-label', label);
btn.setAttribute('title', label);
}
// Handheld (mobile.css): the sidebar is an off-canvas overlay, and
// "collapsed" means the drawer is closed.
const aside = document.getElementById('sessionSidebar');
if (aside) {
aside.classList.toggle('open', mode === 'sidebar' && !collapsed);
// A closed overlay drawer is only moved off screen by translateX(-100%);
// it keeps display:flex, so without this its filter box and ~4 tab stops
// per session stay in the Tab order and in the accessibility tree.
// NOT applied to the docked desktop rail — its rows are still clickable.
const hiddenDrawer = mode === 'sidebar' && collapsed && this._isSessionSidebarOverlay();
aside.toggleAttribute('inert', hiddenDrawer);
if (hiddenDrawer) aside.setAttribute('aria-hidden', 'true');
else aside.removeAttribute('aria-hidden');
}
// The filter box only exists inside the sidebar; leaving a stale filter
// applied when the layout goes back to the header strip would hide sessions
// from the tab bar with no reachable control to clear it.
if (mode !== 'sidebar') {
this._sidebarFilter = '';
const filterInput = document.getElementById('sessionSidebarFilter');
if (filterInput) filterInput.value = '';
}
// applyTabWrapSettings() (settings-ui.js) is the ONE owner of
// tabs-two-rows / tabs-show-folder / _tallTabsEnabled and is itself
// sidebar-aware — it reads the data-session-list attribute set just above,
// so it must run AFTER it. It re-renders by itself when the folder row
// appears or disappears.
const prevTall = this._tallTabsEnabled;
this.applyTabWrapSettings();
// A layout flip alone still needs one render: the rows are rebuilt into the
// new host with the drag/keyboard handlers re-bound. Skipped when
// applyTabWrapSettings() already rendered for the folder-row change.
if (prevMode !== mode && prevTall === this._tallTabsEnabled) {
this._fullRenderSessionTabs();
}
// tabs-auto-wrap is measured, not derived from settings — updateTabOverflowMode()
// drops it in sidebar mode, but drop it here too so nothing paints wrapped
// for a frame before the next measure.
if (mode === 'sidebar') tabsEl.classList.remove('tabs-auto-wrap');
// Collapse/expand changes whether the filter is reachable, so re-evaluate it
// here too — not only at the render tails.
this.applySidebarFilter(this._sidebarFilter);
this.updateSidebarCount();
this.updateConnectionLines();
// The desktop home rail defers to the sidebar (both dock the session list
// flush left), so a layout flip while the welcome screen is up has to
// re-evaluate it — showHomeSessions() self-gates on shouldShowHomeSessions().
if (document.getElementById('welcomeOverlay')?.classList.contains('visible')) {
this.showHomeSessions?.();
}
}
toggleSessionSidebar() {
if (!this.isSessionSidebarActive()) return;
const collapsed = !this.isSessionSidebarCollapsed();
this._sidebarCollapsedOverride = collapsed;
try {
localStorage.setItem('codeman-sidebar-collapsed', collapsed ? '1' : '0');
} catch {}
// Collapsing hides the filter row. If focus is sitting in there it would be
// reset to <body>, dropping the user back to the top of the tab order — so
// hand it to the toggle, which is the control they just used.
if (collapsed && this.$('sessionSidebar')?.contains(document.activeElement)) {
document.getElementById('sidebarToggleBtn')?.focus();
}
this.applySessionListLayout();
// Opening the MODAL drawer moves focus into it, as a dialog should. The
// docked desktop sidebar is not modal: stealing focus there would pull the
// caret out of the terminal mid-prompt, and .session-tab handles only
// arrows/Home/End/Enter/Space, so everything typed after would be swallowed.
if (!collapsed && this._isSessionSidebarOverlay()) {
this.$('sessionTabs')?.querySelector('.session-tab.active')?.focus();
}
}
/**
* Overlay layouts only: below 1024px the sidebar is a modal drawer on top of
* the terminal (mobile.css), so picking a session from it must get it out of
* the way again. The docked desktop sidebar stays exactly where the user put
* it. No-op unless the drawer is actually open.
*/
closeSessionSidebarOnHandheld() {
if (!this._isSessionSidebarOverlay()) return;
if (!this.isSessionSidebarActive() || this.isSessionSidebarCollapsed()) return;
this.toggleSessionSidebar();
}
updateSidebarCount() {
const el = document.getElementById('sessionSidebarCount');
if (el) el.textContent = String(this.sessions?.size ?? 0);
}
/**
* Sidebar filter box. Pure DOM class toggling — no re-render, no state on the
* sessions themselves. Matches the rendered aria-label (session name) and the
* title (working directory).
*
* Re-applied at the tail of both render paths: _fullRenderSessionTabs() rebuilds
* innerHTML wholesale, so without that the filtered-out rows flicker back in on
* every SSE tick.
*
* The filter only takes effect while the box that produced it is on screen —
* i.e. the expanded sidebar. In the header strip, the collapsed rail or a
* closed drawer the classes come off, otherwise sessions would stay hidden
* with no visible cause and no reachable control to clear them. The remembered
* needle is restored when the box comes back.
*/
applySidebarFilter(query) {
this._sidebarFilter = (query ?? '').trim().toLowerCase();
const container = this.$('sessionTabs');
if (!container) return;
const reachable =
this.isSessionSidebarActive() && document.documentElement.dataset.sidebar !== 'collapsed';
const needle = reachable ? this._sidebarFilter : '';
for (const tab of container.querySelectorAll('.session-tab')) {
if (!needle) {
tab.classList.remove('tab-filtered-out');
continue;
}
const haystack = `${tab.getAttribute('aria-label') || ''} ${tab.getAttribute('title') || ''}`.toLowerCase();
tab.classList.toggle('tab-filtered-out', !haystack.includes(needle));
}
}
// ═══════════════════════════════════════════════════════════════
// Session Tabs
// ═══════════════════════════════════════════════════════════════
renderSessionTabs() {
// Don't re-render while user is typing in the inline rename input
if (this._inlineRenameActive) return;
this._debouncedCall('sessionTabs', this._renderSessionTabsImmediate);
}
/** Toggle .active class on tabs immediately (no debounce). Used by selectSession(). */
_updateActiveTabImmediate(sessionId) {
const container = this.$('sessionTabs');
if (!container) return;
const tabs = container.querySelectorAll('.session-tab[data-id]');
for (const tab of tabs) {
if (tab.dataset.id === sessionId) {
tab.classList.add('active');
} else {
tab.classList.remove('active');
}
}
// #257: selection used to stop at the class toggle. On phones/tablets the
// strip scrolls horizontally, so a tab selected from the palette, a swipe,
// Alt+N or a push notification could stay parked off-screen.
this._scrollActiveTabIntoView(sessionId);
}
/**
* Scroll the tab strip so the given (default: active) tab is visible.
*
* Only phones/tablets scroll the strip (desktop wraps to a second row), and
* the pure policy no-ops whenever there is nothing to scroll, so this is a
* cheap call on every device.
*
* Deliberately NOT scrollIntoView(): that also scrolls every scrollable
* ANCESTOR, which on a phone is the document itself. With the header fixed
* and the keyboard possibly open, a vertical nudge there shifts the whole
* app. Rect math + scrollLeft touches exactly one scroller.
*/
_scrollActiveTabIntoView(sessionId, behavior = 'smooth') {
const container = this.$('sessionTabs');
if (!container) return;
const tab =
(sessionId && container.querySelector(`.session-tab[data-id="${sessionId}"]`)) ||
container.querySelector('.session-tab.active');
if (!tab) return;
// Sidebar layout: the list scrolls VERTICALLY in its own scroller, so the
// horizontal computeTabScrollLeft math below would always no-op (scrollLeft
// pinned at 0). With 25+ sessions the active row is routinely below the
// fold; 'nearest' never scrolls when it is already visible, and only the
// list's own scroller moves — the drawer and document stay put.
if (this.isSessionSidebarActive()) {
tab.scrollIntoView({ block: 'nearest' });
return;
}
const policy = window.CodemanTabOverflow?.computeTabScrollLeft;
if (!policy) return;
const containerRect = container.getBoundingClientRect();
const tabRect = tab.getBoundingClientRect();
const target = policy({
scrollLeft: container.scrollLeft,
clientWidth: container.clientWidth,
scrollWidth: container.scrollWidth,
// Offsets are relative to the SCROLL CONTENT, not the offsetParent: the
// tabs' offsetParent is the positioned header, so offsetLeft would carry
// the brand column's width into the math.
tabLeft: tabRect.left - containerRect.left + container.scrollLeft,
tabWidth: tabRect.width,
});
if (Math.abs(target - container.scrollLeft) < 1) return;
const reduceMotion = window.matchMedia?.('(prefers-reduced-motion: reduce)')?.matches;
if (typeof container.scrollTo === 'function') {
container.scrollTo({ left: target, behavior: reduceMotion ? 'auto' : behavior });
} else {
container.scrollLeft = target;
}
}
/**
* Where a floating window (subagent / ultracode) attaches to its parent tab.
* Header strip: below the tab, connector runs vertically. Sidebar: to the
* RIGHT of the tab, connector runs horizontally — otherwise the window spawns
* on top of the sidebar and its bezier loops backwards underneath it.
*/
_tabAnchor(rect) {
if (this.isSessionSidebarActive()) {
return {
x: rect.right,
y: rect.top + rect.height / 2,
spawnLeft: rect.right + 14,
spawnTop: rect.top,
vertical: false,
};
}
return {
x: rect.left + rect.width / 2,
y: rect.bottom,
spawnLeft: rect.left,
spawnTop: rect.bottom,
vertical: true,
};
}
/** Bezier from a _tabAnchor() to a window rect, curving along the right axis. */
_tabConnectorPath(anchor, winRect) {
if (anchor.vertical) {
const x2 = winRect.left + winRect.width / 2;
const y2 = winRect.top;
const midY = (anchor.y + y2) / 2;
return `M ${anchor.x} ${anchor.y} C ${anchor.x} ${midY}, ${x2} ${midY}, ${x2} ${y2}`;
}
const x2 = winRect.left;
const y2 = winRect.top + winRect.height / 2;
const midX = (anchor.x + x2) / 2;
return `M ${anchor.x} ${anchor.y} C ${midX} ${anchor.y}, ${midX} ${y2}, ${x2} ${y2}`;
}
_setTerminalLoadState(sessionId, selectGen, phase) {
this.terminalLoadStates.set(sessionId, { generation: selectGen, phase });
this._updateTerminalLoadTab(sessionId);
}
_clearTerminalLoadState(sessionId, selectGen) {
const state = this.terminalLoadStates.get(sessionId);
if (state && state.generation !== selectGen) return;
this.terminalLoadStates.delete(sessionId);
this._updateTerminalLoadTab(sessionId);
}
_updateTerminalLoadTab(sessionId) {
const tab = this.$('sessionTabs')?.querySelector(`.session-tab[data-id="${sessionId}"]`);
if (!tab) return;
const loadState = this.terminalLoadStates.get(sessionId);
tab.classList.toggle('tab-loading', !!loadState);
if (loadState) {
tab.setAttribute('aria-busy', 'true');
tab.dataset.loadPhase = loadState.phase;
if (!tab.querySelector('.tab-load-spinner')) {
const spinner = document.createElement('span');
spinner.className = 'tab-load-spinner';
spinner.setAttribute('aria-hidden', 'true');
const numberEl = tab.querySelector('.tab-number');
if (numberEl) {
numberEl.insertAdjacentElement('afterend', spinner);
} else {
tab.insertBefore(spinner, tab.firstChild);
}
}
} else {
tab.setAttribute('aria-busy', 'false');
delete tab.dataset.loadPhase;
tab.querySelector('.tab-load-spinner')?.remove();
}
}
_renderSessionTabsImmediate() {
// Same guard as renderSessionTabs()/_fullRenderSessionTabs(): the incremental
// branch below rewrites .tab-name's innerHTML, which destroys the inline rename
// <input> mid-keystroke. Guarding only the scheduler is not enough: a render
// debounced just BEFORE the rename opened still fires ~100ms later and lands
// here directly. finishRename() re-renders on both commit and cancel, so a
// render dropped here is picked back up when the rename settles.
if (this._inlineRenameActive) return;
const container = this.$('sessionTabs');
const existingTabs = container.querySelectorAll('.session-tab[data-id]');
const existingIds = new Set([...existingTabs].map(t => t.dataset.id));
const currentIds = new Set(this.sessions.keys());
// Web tabs live in the same strip but are not in this.sessions, so they need
// their own change check. Without it, the session-only comparison below is
// vacuously "unchanged" whenever session count is stable — most visibly with
// ZERO sessions (0 === 0), where opening a dashboard would never draw its tab.
const existingWebIds = [...container.querySelectorAll('.session-tab[data-webview-id]')].map(
t => t.dataset.webviewId
);
const wantedWebIds = (this.webviewOrder || []).filter(id => this.webviews?.has(id));
const webTabsUnchanged =
existingWebIds.length === wantedWebIds.length && existingWebIds.every((id, i) => id === wantedWebIds[i]);
// Check if we can do incremental update (same session IDs and same web tabs)
const canIncremental = existingIds.size === currentIds.size &&
[...existingIds].every(id => currentIds.has(id)) &&
webTabsUnchanged;
if (canIncremental) {
// Incremental update - only modify changed properties
for (const [id, session] of this.sessions) {
const tab = container.querySelector(`.session-tab[data-id="${id}"]`);
if (!tab) continue;
// A web tab owns the active state while one is open. activeSessionId stays
// set (the terminal keeps streaming underneath, and switching back is
// instant): only the highlight moves. Without this the debounced render
// re-marks the session tab active moments after a web tab was selected,
// leaving two tabs lit at once.
const isActive = id === this.activeSessionId && !this.activeWebviewId;
const status = session.status || 'idle';
const name = this.getSessionName(session);
const taskStats = session.taskStats || { running: 0, total: 0 };
const hasRunningTasks = taskStats.running > 0;
const loadState = this.terminalLoadStates.get(id);
// Update active class
if (isActive && !tab.classList.contains('active')) {
tab.classList.add('active');
} else if (!isActive && tab.classList.contains('active')) {
tab.classList.remove('active');
}
tab.classList.toggle('tab-loading', !!loadState);
if (loadState) {
tab.setAttribute('aria-busy', 'true');
tab.dataset.loadPhase = loadState.phase;
if (!tab.querySelector('.tab-load-spinner')) {
const spinner = document.createElement('span');
spinner.className = 'tab-load-spinner';
spinner.setAttribute('aria-hidden', 'true');
const numberEl = tab.querySelector('.tab-number');
if (numberEl) {
numberEl.insertAdjacentElement('afterend', spinner);
} else {
tab.insertBefore(spinner, tab.firstChild);
}
}
} else {
tab.setAttribute('aria-busy', 'false');
delete tab.dataset.loadPhase;
tab.querySelector('.tab-load-spinner')?.remove();
}
// Update alert class
const alertType = this.tabAlerts.get(id);
const wantAction = alertType === 'action';
const wantIdle = alertType === 'idle';
const hasAction = tab.classList.contains('tab-alert-action');
const hasIdle = tab.classList.contains('tab-alert-idle');
if (wantAction && !hasAction) { tab.classList.add('tab-alert-action'); tab.classList.remove('tab-alert-idle'); }
else if (wantIdle && !hasIdle) { tab.classList.add('tab-alert-idle'); tab.classList.remove('tab-alert-action'); }
else if (!alertType && (hasAction || hasIdle)) { tab.classList.remove('tab-alert-action', 'tab-alert-idle'); }
// Inject tab-number badge if missing (added after initial render)
if (!tab.querySelector('.tab-number')) {
const idx = this.sessionOrder.indexOf(id);
if (idx >= 0 && idx < 9) {
const numSpan = document.createElement('span');
numSpan.className = 'tab-number';
numSpan.textContent = String(idx + 1);
tab.insertBefore(numSpan, tab.firstChild);
}
}
// Update status indicator
const statusEl = tab.querySelector('.tab-status');
if (statusEl && !statusEl.classList.contains(status)) {
statusEl.className = `tab-status ${status}`;
}
// Update name if changed. #232: a description (the `: suffix` part of the
// name) is the whole tab label; the generated id lives in the tooltip. The
// compare targets the DISPLAY text, or a described tab would re-render on
// every pass (textContent never equals the full name there).
const nameEl = tab.querySelector('.tab-name');
if (nameEl) {
const _p = parseSessionPrefix(name);
const _label = _p && _p.suffix ? _p.suffix : name;
if (nameEl.textContent !== _label) {
nameEl.textContent = _label;
tab.title = _p && _p.suffix
? (session.workingDir ? `${_p.prefix} (${session.workingDir})` : _p.prefix)
: (session.workingDir || '');
}
}
// Update task badge
const badgeEl = tab.querySelector('.tab-badge');
if (hasRunningTasks) {
if (badgeEl) {
if (badgeEl.textContent !== String(taskStats.running)) {
badgeEl.textContent = taskStats.running;
}
} else {
// Need to add badge - do full rebuild
this._fullRenderSessionTabs();
return;
}
} else if (badgeEl) {
// Need to remove badge - do full rebuild
this._fullRenderSessionTabs();
return;
}
// Update subagent badge - targeted update without full rebuild
const subagentBadgeEl = tab.querySelector('.tab-subagent-badge');
const minimizedAgents = this.minimizedSubagents.get(id);
const minimizedCount = minimizedAgents?.size || 0;
if (minimizedCount > 0 && subagentBadgeEl) {
// Badge exists and still has agents - update label and dropdown in-place
const labelEl = subagentBadgeEl.querySelector('.subagent-label');
const newLabel = minimizedCount === 1 ? 'AGENT' : `AGENTS (${minimizedCount})`;
if (labelEl && labelEl.textContent !== newLabel) {
labelEl.textContent = newLabel;
}
// Rebuild dropdown items (agent list may have changed)
const dropdownEl = subagentBadgeEl.querySelector('.subagent-dropdown');
if (dropdownEl) {
const newBadgeHtml = this.renderSubagentTabBadge(id, minimizedAgents);
const temp = document.createElement('div');
temp.innerHTML = newBadgeHtml;
const newDropdown = temp.querySelector('.subagent-dropdown');
if (newDropdown) {
dropdownEl.innerHTML = newDropdown.innerHTML;
}
}
} else if (minimizedCount > 0 && !subagentBadgeEl) {
// Need to add badge - insert before the action-icon overlay so the
// badge stays a direct child of the tab (outside .tab-actions)
const badgeHtml = this.renderSubagentTabBadge(id, minimizedAgents);
const actionsEl = tab.querySelector('.tab-actions');
if (actionsEl) {
actionsEl.insertAdjacentHTML('beforebegin', badgeHtml);
}
} else if (minimizedCount === 0 && subagentBadgeEl) {
// Count went to 0 - remove badge
subagentBadgeEl.remove();
}
}
} else {
// Full rebuild needed (sessions added/removed)
this._fullRenderSessionTabs();
}
// Keep the reveal-on-change bookkeeping honest when only the incremental
// branch ran: _updateActiveTabImmediate has already scrolled the new active
// tab into view, so the next full rebuild must not treat it as a change.
this._lastRenderedActiveTabId = this.activeSessionId;
this.updateTabOverflowMode();
// After the wrap measurement: the `unroll` style starts tabs at max-width 0,
// so measuring mid-animation would decide the wrap on collapsed widths.
this._applyTabEntrances?.();
// Phone overview rides on this one call: every state change it cares about
// (create, delete, idle, working, exit, hook alerts via updateTabAlertFromHooks)
// already funnels through here. No-ops unless that surface is showing.
this._refreshMobileOverviewIfVisible?.();
// Same deal for the desktop home screen's tab column.
this._refreshHomeSessionsIfVisible?.();
// The full-render path already redraws the connection SVG; this incremental
// one does not, and a badge appearing widens a tab and shifts every tab after
// it, sliding the lineage arcs off their anchors. Only pay for it when there
// is an arc to keep anchored.
if (this._lineageEdgeCount > 0) this.updateConnectionLines();
this.applySidebarFilter(this._sidebarFilter);
this.updateSidebarCount();
}
// Auto-wrap desktop session tabs to a second row when they overflow one row,
// unless the user has pinned the manual two-row layout (tabTwoRows). Mobile/
// tablet keep horizontal scroll. Policy lives in constants.js for unit testing.
updateTabOverflowMode() {
const container = this.$('sessionTabs');
if (!container) return;
// The sidebar list is a single vertical column with its own scroller —
// there is no row to overflow, and measuring it would fight the CSS.
if (this.isSessionSidebarActive()) {
container.classList.remove('tabs-auto-wrap');
return;
}
const deviceType = MobileDetection.getDeviceType();
const settings = this.loadAppSettingsFromStorage();
const defaults = this.getDefaultSettings();
const manualTwoRows = deviceType === 'desktop' ? (settings.tabTwoRows ?? defaults.tabTwoRows ?? false) : false;
if (manualTwoRows || deviceType !== 'desktop') {
container.classList.remove('tabs-auto-wrap');
return;
}
// Measure the natural one-row overflow, then enable wrapping only if needed.
container.classList.remove('tabs-auto-wrap');
const shouldWrap = window.CodemanTabOverflow?.shouldAutoWrapTabs
? window.CodemanTabOverflow.shouldAutoWrapTabs({
deviceType,
manualTwoRows,
tabCount: this.sessions.size,
scrollWidth: container.scrollWidth,
clientWidth: container.clientWidth,
})
: container.scrollWidth > container.clientWidth + 1;
container.classList.toggle('tabs-auto-wrap', shouldWrap);
}
// Middle-click closes a tab, mirroring browser tab strips. Session tabs go
// through requestCloseSession (the same confirm modal as the x button), web
// tabs through closeWebviewTab (same as theirs). Delegated on the container:
// tabs are re-rendered wholesale, the container is stable.
_setupTabMiddleClickClose() {
const container = this.$('sessionTabs');
if (!container || this._tabAuxClickBound) return;
this._tabAuxClickBound = true;
container.addEventListener('auxclick', (e) => {
if (e.button !== 1) return;
const tab = e.target.closest?.('.session-tab');
if (!tab) return;
e.preventDefault();
e.stopPropagation();
if (tab.dataset.id) this.requestCloseSession(tab.dataset.id);
else if (tab.dataset.webviewId) this.closeWebviewTab?.(tab.dataset.webviewId);
});
}
_fullRenderSessionTabs() {
if (this._inlineRenameActive) return;
const container = this.$('sessionTabs');
// Sidebar rows are always tall (name + folder) and never wrap. Re-assert it
// here so a render triggered straight from applyTabWrapSettings() — which
// only knows the header strip — cannot leave the sidebar folderless.
if (this.isSessionSidebarActive()) {
this._tallTabsEnabled = true;
container.classList.add('tabs-show-folder');
container.classList.remove('tabs-two-rows', 'tabs-auto-wrap');
}
// Clean up any orphaned dropdowns before re-rendering
document.querySelectorAll('body > .subagent-dropdown').forEach(d => d.remove());
this.cancelHideSubagentDropdown();
// #257: replacing innerHTML below resets scrollLeft to 0. On phones the
// strip scrolls, and ambient rebuilds (a task badge appearing, a session
// created elsewhere) fire often enough that a user swiping toward the
// right-hand tabs kept getting yanked back to the first one. Remember
// where the strip was; the browser clamps the restore to the new content.
const prevScrollLeft = container.scrollLeft;
// Sidebar layout scrolls the same container VERTICALLY, so it needs the
// same protection on the other axis.
const prevScrollTop = container.scrollTop;
const prevActiveTabId = this._lastRenderedActiveTabId;
const isFirstRender = !container.querySelector('.session-tab');
// Build tabs HTML using array for better string concatenation performance.
// Iterate in sessionOrder to respect the user's custom tab arrangement, on
// EVERY device: mobile used to hoist the active session to the front, from
// when only one tab fit on screen. With five tabs it made the strip jump
// under the user's finger (and renumbered the Alt+N badges) on every full
// rebuild, while the incremental path left the order alone, so the order
// depended on which render path happened to run. Scrolling the active tab
// into view replaces it.
const parts = [];
const tabOrder = this.sessionOrder;
let _tabIdx = 0;
for (const id of tabOrder) {
const session = this.sessions.get(id);
if (!session) continue; // Skip if session was removed
// See the note in the incremental path: a web tab owns the active highlight
// while one is open, even though activeSessionId stays set.
const isActive = id === this.activeSessionId && !this.activeWebviewId;
const status = session.status || 'idle';
const name = this.getSessionName(session);
const mode = session.mode || 'claude';
const color = session.color || 'default';
const taskStats = session.taskStats || { running: 0, total: 0 };
const hasRunningTasks = taskStats.running > 0;
const alertType = this.tabAlerts.get(id);
const alertClass = alertType === 'action' ? ' tab-alert-action' : alertType === 'idle' ? ' tab-alert-idle' : '';
const loadState = this.terminalLoadStates.get(id);
// Get minimized subagents for this session
const minimizedAgents = this.minimizedSubagents.get(id);
const minimizedCount = minimizedAgents?.size || 0;
const subagentBadge = minimizedCount > 0 ? this.renderSubagentTabBadge(id, minimizedAgents) : '';
// Ultracode runs + agent transcripts minimized to this tab (ultracode-windows.js
// renders one merged ULTRA badge; returns '' when nothing is minimized).
const ultracodeBadge = this.renderUltracodeTabBadge ? this.renderUltracodeTabBadge(id) : '';
// Show folder name if session has a custom name AND tall tabs setting is enabled
const folderName = session.workingDir ? session.workingDir.split('/').pop() || '' : '';
const tallTabsEnabled = this._tallTabsEnabled ?? false;
const showFolder = tallTabsEnabled && session.name && folderName && folderName !== name;
// #232: a session with a description (the `: suffix` part of its name) shows
// JUST the description on the tab; the generated w<n>-<case> id moves to the
// tooltip and stays visible in the session settings modal.
const parsedName = parseSessionPrefix(name);
const tabLabel = parsedName && parsedName.suffix ? parsedName.suffix : name;
const tabTooltip = parsedName && parsedName.suffix
? (session.workingDir ? `${parsedName.prefix} (${session.workingDir})` : parsedName.prefix)
: (session.workingDir || '');
parts.push(`<div class="session-tab ${isActive ? 'active' : ''}${alertClass}${loadState ? ' tab-loading' : ''}${this.hasTabDetachOverride(id) ? ' tab-show-detach' : ''}" data-id="${id}" data-color="${color}" ${loadState ? `data-load-phase="${escapeHtml(loadState.phase)}"` : ''} onclick="app.handleSessionTabClick(event, ${escapeHtml(JSON.stringify(id))})" oncontextmenu="event.preventDefault(); app.startInlineRename(${escapeHtml(JSON.stringify(id))})" tabindex="0" role="tab" aria-selected="${isActive ? 'true' : 'false'}" aria-busy="${loadState ? 'true' : 'false'}" aria-label="${escapeHtml(name)} session" ${tabTooltip ? `title="${escapeHtml(tabTooltip)}"` : ''}>
${_tabIdx < 9 ? '<span class="tab-number">' + (_tabIdx + 1) + '</span>' : ''}
${loadState ? '<span class="tab-load-spinner" aria-hidden="true"></span>' : ''}
<span class="tab-status ${status}" aria-hidden="true"></span>
<span class="tab-info">
<span class="tab-name-row">
${mode === 'shell' ? '<span class="tab-mode shell" aria-hidden="true">sh</span>' : mode === 'opencode' ? '<span class="tab-mode opencode" aria-hidden="true">oc</span>' : mode === 'codex' ? '<span class="tab-mode codex" aria-hidden="true">cx</span>' : mode === 'gemini' ? '<span class="tab-mode gemini" aria-hidden="true">gm</span>' : mode === 'antigravity' ? '<span class="tab-mode antigravity" aria-hidden="true">ag</span>' : mode === 'pi' ? '<span class="tab-mode pi" aria-hidden="true">pi</span>' : ''}
<span class="tab-name" data-session-id="${id}">${escapeHtml(tabLabel)}</span>
<span class="tab-detached-badge" aria-hidden="true">detached</span>
</span>
${showFolder ? `<span class="tab-folder">\u{1F4C1} ${escapeHtml(folderName)}</span>` : ''}
</span>
${hasRunningTasks ? `<span class="tab-badge" onclick="event.stopPropagation(); app.toggleTaskPanel()" aria-label="${taskStats.running} running tasks">${taskStats.running}</span>` : ''}
${subagentBadge}
${ultracodeBadge}
<span class="tab-actions"><span class="tab-gear" onclick="event.stopPropagation(); app.openSessionOptions(${escapeHtml(JSON.stringify(id))})" title="Session options" aria-label="Session options" tabindex="0">&#x2699;</span><span class="tab-detach" onclick="event.stopPropagation(); app.detachSession(${escapeHtml(JSON.stringify(id))})" title="Open in a new window" aria-label="Open session in a new window" tabindex="0">&#x29C9;</span><span class="tab-close" onclick="event.stopPropagation(); app.requestCloseSession(${escapeHtml(JSON.stringify(id))})" title="Close session" aria-label="Close session" tabindex="0">&times;</span></span>
</div>`);
_tabIdx++;
}
// Web tabs (dashboard URLs) render after the session tabs, continuing the
// Alt+N numbering. They carry data-webview-id instead of data-id, so every
// session-tab code path above (drag-and-drop, alerts, badges) skips them.
parts.push(this.renderWebviewTabs ? this.renderWebviewTabs(_tabIdx) : '');
container.innerHTML = parts.join('');
// Put the strip back where the user left it, then reveal the active tab
// only when it CHANGED (or on the first paint). Restoring unconditionally
// and revealing conditionally is what lets someone browse the far end of
// the strip while a background rebuild fires, without the active tab ever
// being stranded off-screen after a switch.
container.scrollLeft = prevScrollLeft;
container.scrollTop = prevScrollTop;
this._lastRenderedActiveTabId = this.activeSessionId;
if (isFirstRender || prevActiveTabId !== this.activeSessionId) {
this._scrollActiveTabIntoView(this.activeSessionId, isFirstRender ? 'auto' : 'smooth');
}
// Set up drag-and-drop handlers for tab reordering
this.setupTabDragHandlers();
// Set up keyboard navigation for tabs
this.setupTabKeyboardNavigation(container);
// Update connection lines after tabs change (positions may have shifted)
this.updateConnectionLines();
// Re-evaluate desktop auto-wrap for every full rebuild, including the incremental
// branch's early `_fullRenderSessionTabs(); return;` paths and the manual two-rows
// toggle (applyTabWrapSettings calls this) which would otherwise leave a stale
// tabs-auto-wrap class until the next content render.
this.updateTabOverflowMode();
// Newly created tabs animate in; a re-render mid-cascade resumes them rather
// than restarting, since this rebuild just destroyed the animating elements.
this._applyTabEntrances?.();
// innerHTML was rebuilt wholesale, so the sidebar filter classes are gone —
// re-apply them or filtered-out sessions flicker back on every SSE tick.
this.applySidebarFilter(this._sidebarFilter);
this.updateSidebarCount();
}
// Set up arrow key navigation for session tabs (accessibility)
setupTabKeyboardNavigation(container) {
// Remove existing listener if any to avoid duplicates
if (this._tabKeydownHandler) {
container.removeEventListener('keydown', this._tabKeydownHandler);
}
this._tabKeydownHandler = (e) => {
// Up/Down are aliases of Left/Right, not replacements: the strip stays
// arrow-key navigable exactly as before, the vertical sidebar just gains
// the axis a user reaches for there.
if (!['ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown', 'Home', 'End', 'Enter', ' '].includes(e.key)) return;
// Rows hidden by the sidebar filter must not be steppable.
const tabs = [...container.querySelectorAll('.session-tab:not(.tab-filtered-out)')];
const currentIndex = tabs.indexOf(document.activeElement);
// Enter or Space activates the tab
if ((e.key === 'Enter' || e.key === ' ') && currentIndex >= 0) {
e.preventDefault();
const sessionId = tabs[currentIndex].dataset.id;
this.selectSession(sessionId, { forceReload: true });
return;
}
if (currentIndex < 0) return;
let newIndex;
switch (e.key) {
case 'ArrowLeft':
case 'ArrowUp':
newIndex = currentIndex > 0 ? currentIndex - 1 : tabs.length - 1;
break;
case 'ArrowRight':
case 'ArrowDown':
newIndex = currentIndex < tabs.length - 1 ? currentIndex + 1 : 0;
break;
case 'Home':
newIndex = 0;
break;
case 'End':
newIndex = tabs.length - 1;
break;
default:
return;
}
e.preventDefault();
tabs[newIndex]?.focus();
};
container.addEventListener('keydown', this._tabKeydownHandler);
}
handleSessionTabClick(event, sessionId) {
event?.preventDefault?.();
// On touch with the keyboard hidden, blur the tapped tab so switching
// sessions doesn't pop the on-screen keyboard. Focus policy itself lives
// in selectSession via _shouldFocusTerminalForTabSwitch().
const keyboardOpen = typeof KeyboardHandler !== 'undefined' && KeyboardHandler.keyboardVisible === true;
if (!keyboardOpen && MobileDetection.isTouchDevice()) {
document.activeElement?.blur?.();
}
return this.selectSession(sessionId, { forceReload: true });
}
// ═══════════════════════════════════════════════════════════════
// Tab Order and Drag-and-Drop
// ═══════════════════════════════════════════════════════════════
// Sync sessionOrder with current sessions (preserve order for existing, add new at end)
syncSessionOrder() {
const currentIds = new Set(this.sessions.keys());
// Load saved order from localStorage
const savedOrder = this.loadSessionOrder();
// Start with saved order, keeping only sessions that still exist
const preserved = savedOrder.filter(id => currentIds.has(id));
const preservedSet = new Set(preserved);
// Add any new sessions at the end
const newSessions = [...currentIds].filter(id => !preservedSet.has(id));
this.sessionOrder = [...preserved, ...newSessions];
}
// Load session order from localStorage
loadSessionOrder() {
try {
const saved = localStorage.getItem('codeman-session-order');
return saved ? JSON.parse(saved) : [];
} catch {
return [];
}
}
// Save session order to localStorage and (debounced) sync to the server so it
// follows the user across devices (COD-131). localStorage stays the offline
// fallback; the server is authoritative and echoes back via SSE.
saveSessionOrder() {
try {
localStorage.setItem('codeman-session-order', JSON.stringify(this.sessionOrder));
} catch {
// Ignore storage errors
}
const order = [...this.sessionOrder];
this._debouncedCall('saveSessionOrderServer', () => {
fetch('/api/session-order', {
method: 'PUT',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ order }),
}).catch(() => {});
}, 400);
}
// COD-131: another device (or our own debounced push) reordered tabs. Adopt the
// server order as the new base and reconcile to our currently-open sessions.
// Guard against no-op churn so an echo of our own push doesn't flicker the tabs.
_onSessionOrderChanged(data) {
if (!data || !Array.isArray(data.order)) return;
try {
localStorage.setItem('codeman-session-order', JSON.stringify(data.order));
} catch {
// Ignore storage errors
}
const before = JSON.stringify(this.sessionOrder);
this.syncSessionOrder();
// Only re-render when the reconciled order actually changed (avoids flicker
// when the broadcast is just an echo of the order we already have).
if (JSON.stringify(this.sessionOrder) !== before) {
this._fullRenderSessionTabs();
}
}
// Set up drag-and-drop handlers on tab elements
setupTabDragHandlers() {
const container = this.$('sessionTabs');
const tabs = container.querySelectorAll('.session-tab[data-id]');
tabs.forEach(tab => {
tab.setAttribute('draggable', 'true');
tab.addEventListener('dragstart', (e) => {
this.draggedTabId = tab.dataset.id;
tab.classList.add('dragging');
e.dataTransfer.effectAllowed = 'move';
e.dataTransfer.setData('text/plain', tab.dataset.id);
});
tab.addEventListener('dragend', () => {
tab.classList.remove('dragging');
this.draggedTabId = null;
// Remove all drag-over indicators
container.querySelectorAll('.session-tab').forEach(t => {
t.classList.remove('drag-over-left', 'drag-over-right');
});
});
tab.addEventListener('dragover', (e) => {
e.preventDefault();
if (!this.draggedTabId || this.draggedTabId === tab.dataset.id) return;
e.dataTransfer.dropEffect = 'move';
// Determine drop position based on mouse position. Read the layout here,
// inside the handler — these listeners survive a layout flip between
// renders, so capturing the axis at bind time would go stale.
// drag-over-left/-right keep their names and now read as before/after;
// the sidebar CSS just draws them as top/bottom edges.
const rect = tab.getBoundingClientRect();
const insertBefore = this.isSessionSidebarActive()
? e.clientY < rect.top + rect.height / 2
: e.clientX < rect.left + rect.width / 2;
// Update visual indicator
tab.classList.toggle('drag-over-left', insertBefore);
tab.classList.toggle('drag-over-right', !insertBefore);
});
tab.addEventListener('dragleave', () => {
tab.classList.remove('drag-over-left', 'drag-over-right');
});
tab.addEventListener('drop', (e) => {
e.preventDefault();
tab.classList.remove('drag-over-left', 'drag-over-right');
if (!this.draggedTabId || this.draggedTabId === tab.dataset.id) return;
const targetId = tab.dataset.id;
const draggedId = this.draggedTabId;
// Determine insertion position (same axis rule as the dragover handler)
const rect = tab.getBoundingClientRect();
const insertBefore = this.isSessionSidebarActive()
? e.clientY < rect.top + rect.height / 2
: e.clientX < rect.left + rect.width / 2;
// Reorder sessionOrder array
const fromIndex = this.sessionOrder.indexOf(draggedId);
let toIndex = this.sessionOrder.indexOf(targetId);
if (fromIndex === -1 || toIndex === -1) return;
// Remove dragged item
this.sessionOrder.splice(fromIndex, 1);
// Recalculate target index after removal
toIndex = this.sessionOrder.indexOf(targetId);
if (toIndex === -1) return;
// Insert at correct position
if (insertBefore) {
this.sessionOrder.splice(toIndex, 0, draggedId);
} else {
this.sessionOrder.splice(toIndex + 1, 0, draggedId);
}
// Save and re-render
this.saveSessionOrder();
this._fullRenderSessionTabs();
});
});
}
moveActiveTabLeft() {
if (!this.activeSessionId) return;
const idx = this.sessionOrder.indexOf(this.activeSessionId);
if (idx <= 0) return;
[this.sessionOrder[idx - 1], this.sessionOrder[idx]] = [this.sessionOrder[idx], this.sessionOrder[idx - 1]];
this.saveSessionOrder();
this._fullRenderSessionTabs();
}
moveActiveTabRight() {
if (!this.activeSessionId) return;
const idx = this.sessionOrder.indexOf(this.activeSessionId);
if (idx === -1 || idx >= this.sessionOrder.length - 1) return;
[this.sessionOrder[idx], this.sessionOrder[idx + 1]] = [this.sessionOrder[idx + 1], this.sessionOrder[idx]];
this.saveSessionOrder();
this._fullRenderSessionTabs();
}
// ═══════════════════════════════════════════════════════════════
// Session Lifecycle — select, close, navigate
// ═══════════════════════════════════════════════════════════════
getShortId(id) {
if (!id) return '';
let short = this._shortIdCache.get(id);
if (!short) {
short = id.slice(0, 8);
this._shortIdCache.set(id, short);
}
return short;
}
getSessionName(session) {
// Use custom name if set
if (session.name) {
return session.name;
}
// Fall back to directory name
if (session.workingDir) {
return session.workingDir.split('/').pop() || session.workingDir;
}
return this.getShortId(session.id);
}
_notifySession(sessionId, urgency, category, title, message) {
const session = this.sessions.get(sessionId);
this.notificationManager?.notify({
urgency,
category,
sessionId,
sessionName: session?.name || this.getShortId(sessionId),
title,
message,
});
}
/**
* Clean up state from the previous session before switching tabs.
* Handles: WebSocket teardown, CJK clear, flicker filter, tab completion,
* terminal write queue, IME composition, and local echo flush.
* @param {string} newSessionId - The session being switched TO.
*/
_isUsableXtermSnapshot(snapshot) {
if (!snapshot || typeof snapshot !== 'string' || snapshot.length < 8) return false;
const visibleText = snapshot
.replace(/\x1b\][^\x07\x1b]*(?:\x07|\x1b\\)/g, '')
.replace(/\x1b\[[0-9;?]*[ -/]*[@-~]/g, '')
.replace(/\x1b[()][0-2A-Z]/g, '')
.replace(/[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]/g, '')
.trim();
return visibleText.length >= 3;
}
/**
* Persist one xterm snapshot to localStorage, bounded to a fixed key budget
* regardless of how many sessions are live, and resilient to quota errors.
* The previous inline version only pruned snapshots for sessions that no
* longer existed AND pruned only after a successful setItem — so once the
* quota filled (e.g. >10 live sessions at the 20-session target) the write
* threw before the prune could run, permanently disabling persistence.
*/
_persistXtermSnapshot(key, snapshot) {
const PREFIX = 'codeman-xs-';
const MAX_KEYS = 10;
const others = () => Object.keys(localStorage).filter((k) => k.startsWith(PREFIX) && k !== key);
try {
// Evict down to the budget before writing a NEW key, dead sessions first
// then oldest. (Overwriting an existing key doesn't grow the key count.)
if (localStorage.getItem(key) === null) {
const live = new Set(Array.from(this.sessions?.keys?.() || []));
const pool = others().sort(
(a, b) =>
Number(live.has(a.slice(PREFIX.length))) - Number(live.has(b.slice(PREFIX.length)))
);
while (pool.length >= MAX_KEYS) localStorage.removeItem(pool.shift());
}
try {
localStorage.setItem(key, snapshot);
} catch (_quota) {
// Quota exceeded: drop other snapshots one at a time and retry so a full
// quota can't permanently disable persistence.
for (const victim of others()) {
localStorage.removeItem(victim);
try {
localStorage.setItem(key, snapshot);
return;
} catch (_again) {
/* keep evicting */
}
}
try { localStorage.removeItem(key); } catch {}
}
} catch (_unavailable) {
/* localStorage unavailable (Safari private mode / disabled) — in-memory only */
}
}
_cleanupPreviousSession(newSessionId) {
// Snapshot the OUTGOING session's xterm rendered state (viewport + scrollback +
// colors/attrs) before the terminal gets cleared/reset. Lets us restore the
// exact view on switch-back rather than replaying codex's byte stream, which
// drops earlier conversation from each TUI redraw and ends up showing only
// the latest (idle) frame.
// Shell sessions are never restored from a snapshot (restore is gated on
// mode !== 'shell'), so skip the serialize() + cache slot + localStorage
// quota for them. Unknown/undefined mode still snapshots, matching restore.
const outgoingSession = this.activeSessionId ? this.sessions?.get?.(this.activeSessionId) : null;
if (
this.activeSessionId &&
outgoingSession?.mode !== 'shell' &&
this._serializeAddon &&
this._xtermSnapshots
) {
try {
const snapshot = this._serializeAddon.serialize({ scrollback: 1000 });
if (this._isUsableXtermSnapshot(snapshot)) {
// Delete-before-set so re-touching a session moves it to the end of
// the Map's insertion order — otherwise eviction is FIFO and can drop
// the most-recently-used session instead of the least.
this._xtermSnapshots.delete(this.activeSessionId);
this._xtermSnapshots.set(this.activeSessionId, snapshot);
// Cap in-memory snapshot cache at 20 entries; evict oldest on overflow.
if (this._xtermSnapshots.size > 20) {
const oldest = this._xtermSnapshots.keys().next().value;
this._xtermSnapshots.delete(oldest);
}
// Persist to localStorage so the snapshot survives tab discard /
// browser reload (Chrome discards inactive tabs after idle periods,
// wiping in-memory state). Cap per-snapshot at 256KB; codex
// buffer-replay produces a visual mess of stacked banner redraws when
// no snapshot exists, so persistence matters more here than for claude.
if (snapshot.length < 256 * 1024) {
this._persistXtermSnapshot(`codeman-xs-${this.activeSessionId}`, snapshot);
}
} else {
this._xtermSnapshots.delete(this.activeSessionId);
try { localStorage.removeItem(`codeman-xs-${this.activeSessionId}`); } catch {}
}
} catch (_err) {
/* Serialize failed — fall back to server buffer replay */
}
}
// Close WebSocket for previous session (new one opens after buffer load)
this._disconnectWs();
// Clear CJK input to prevent sending stale text to the wrong session.
// Must go through CjkInput.clear() — a raw value wipe leaves the module's
// pending flush timers armed and drops the phantom char it relies on.
if (typeof CjkInput !== 'undefined') {
CjkInput.clear();
} else {
const cjkEl = document.getElementById('cjkInput');
if (cjkEl) cjkEl.value = '';
}
// Clean up flicker filter state when switching sessions
this._clearTimer('flickerFilterTimeout');
this.flickerFilterBuffer = '';
this.flickerFilterActive = false;
// Clear tab completion detection flag — don't carry across sessions
this._tabCompletionSessionId = null;
this._tabCompletionRetries = 0;
this._tabCompletionBaseText = null;
this._clearTimer('_tabCompletionFallback');
this._clearTimer('_clientDropRecoveryTimer');
// Clean up pending terminal writes to prevent old session data from appearing in new session
this._clearTimer('syncWaitTimeout');
this.pendingWrites = [];
this.writeFrameScheduled = false;
this._isLoadingBuffer = false;
this._loadBufferQueue = null;
this._bufferLoadOwner = null;
// Abort any in-flight chunkedTerminalWrite from the previous session.
// Without this, old rAF-scheduled chunks continue writing stale data
// into the terminal, interleaving with the new session's buffer.
this._chunkedWriteGen = (this._chunkedWriteGen || 0) + 1;
// End any in-flight IME composition.
// iOS Safari keeps autocorrect composing; switching tabs without ending it
// leaves xterm's _compositionHelper._isComposing stuck true, which blocks
// keyboard input when the user returns to this tab.
try {
const ch = this.terminal?._core?._compositionHelper;
if (ch?._isComposing) {
ch._isComposing = false;
// Also fire compositionend on the textarea so any other listeners reset
const ta = this.terminal?.element?.querySelector('.xterm-helper-textarea');
if (ta) ta.dispatchEvent(new CompositionEvent('compositionend', { data: '' }));
}
} catch {}
// Flush local echo text to PTY before switching tabs.
// Send as a single batch (no Enter) so it lands in the session's readline
// input buffer — avoids "old text resent on Enter" and overlay render bugs.
// Track flushed length so _render() offsets the overlay correctly even before
// the PTY echo arrives in the terminal buffer.
if (this.activeSessionId) {
const echoText = this._localEchoOverlay?.pendingText || '';
// Include buffer-detected flushed text (from Tab completion, etc.)
// so it's preserved across tab switches.
const existingFlushed = this._localEchoOverlay?.getFlushed()?.count || 0;
const existingFlushedText = this._localEchoOverlay?.getFlushed()?.text || '';
if (echoText) {
this._sendInputAsync(this.activeSessionId, echoText);
}
const totalOffset = existingFlushed + echoText.length;
if (totalOffset > 0) {
if (!this._flushedOffsets) this._flushedOffsets = new Map();
if (!this._flushedTexts) this._flushedTexts = new Map();
this._flushedOffsets.set(this.activeSessionId, totalOffset);
this._flushedTexts.set(this.activeSessionId, existingFlushedText + echoText);
}
}
this._localEchoOverlay?.clear();
// Predictions are ephemeral + already sent: nothing to save/restore
// across a tab switch (unlike the buffer overlay's setFlushed machinery)
this._predictiveEcho?.clearPredictions();
// Prevent _detectBufferText() from picking up Claude's Ink UI text
// (status bar, model info, etc.) as "user input" on fresh sessions.
// Only sessions with prior flushed text (from tab-switch-away) need detection.
// After the user's first Enter, clear() resets _bufferDetectDone = false,
// re-enabling detection for tab completion and other legitimate cases.
if (this._localEchoOverlay && !this._flushedOffsets?.has(newSessionId)) {
this._localEchoOverlay.suppressBufferDetection();
}
}
_resetTerminalForReplay() {
this.terminal.reset();
this.terminal.write('\x1b[3J\x1b[H\x1b[2J');
}
/**
* "Load more history": re-pull the whole tmux scrollback when the user scrolls up
* while already at the top of what the browser has.
*
* xterm's buffer is only ever a WINDOW onto tmux's real history, and two things
* shrink it. tmux repaints the pane rectangle instead of emitting linefeeds
* whenever output outpaces its flush interval, which OVERWRITES already-rendered
* scrollback rather than pushing rows into it (measured: a 60-line burst added 1
* row and destroyed 34, while the same 60 lines emitted slowly added all 60). And
* a tab switch replays only the visible frame. Either way tmux still holds
* everything (history-limit 100k by default), so the fix is to go ask for it with
* the same `?full=1` capture a page reload uses (issue #205).
*
* On demand rather than automatic because that capture is unbounded-ish work: at
* the default history limit it can be megabytes, which is fine to pay when the
* user is explicitly reaching for history and not fine on every tab switch.
*
* NEVER a downgrade: for a repaint-mode CLI pane tmux keeps no history of its
* own, so the capture can be THINNER than what xterm already holds and the
* reset+rewrite below would delete history mid-scroll. `_replayWouldShrinkBuffer`
* (terminal-ui.js) is the guard, and a session that produced one useless re-pull
* gets a much longer cooldown so a hollow pane stops re-fetching megabytes on
* every scroll-up (issue #205, round 2).
*/
async _maybeRefetchFullHistory({ force = false } = {}) {
const sessionId = this.activeSessionId;
if (!sessionId || this._fullHistoryRepullInFlight || this._isLoadingBuffer) return;
if (this.detachedSessions?.has(sessionId)) return;
const now = Date.now();
// Momentum scrolling fires this dozens of times per flick, and a burst of new
// output is the normal reason to want a re-pull, so cooldown rather than latch.
// `force` is the user pressing "Load full history" (#258): they asked once,
// explicitly, so the scroll-gesture cooldown does not apply. The downgrade
// guard below still does — a forced pull must not destroy history either.
const cooldown = this._fullHistoryRepullUseless?.has(sessionId) ? 60000 : 4000;
if (!force && now - (this._fullHistoryRepullAt.get(sessionId) || 0) < cooldown) return;
this._fullHistoryRepullAt.set(sessionId, now);
this._fullHistoryRepullInFlight = true;
try {
const res = await fetch(`/api/sessions/${sessionId}/terminal?full=1`);
const payload = (await res.json())?.data ?? {};
const buffer = payload.terminalBuffer;
// Bail on a tab switch mid-fetch: writing here would paint another session's
// history into the terminal the user is now looking at.
if (!buffer || this.activeSessionId !== sessionId) return;
if (this._replayWouldShrinkBuffer(buffer)) {
(this._fullHistoryRepullUseless ||= new Set()).add(sessionId);
this._logScrollRouting?.('repull-refused-downgrade');
// The browser already holds more than tmux can give back, so there is
// nothing further to offer and the indicator must stop promising it.
this._setHistoryTruncation(sessionId, { ...payload, exhausted: true });
return;
}
this._setHistoryTruncation(sessionId, payload);
this._fullHistoryRepullUseless?.delete(sessionId);
const rowsBefore = this.terminal.buffer.active.length;
this._resetTerminalForReplay();
await this.chunkedTerminalWrite(buffer, TERMINAL_CHUNK_SIZE, sessionId);
if (this.activeSessionId !== sessionId) return;
this.terminalBufferCache.set(sessionId, buffer);
// Hold the user's place. The replay is a superset that grew the buffer
// UPWARD, so what used to be row 0 (what they were looking at) is now `delta`
// rows down; scrolling there reveals the recovered history above it instead
// of teleporting them to the bottom the way a normal buffer load does.
const delta = this.terminal.buffer.active.length - rowsBefore;
if (delta > 0) this.terminal.scrollToLine(delta);
else this.terminal.scrollToTop();
} catch {
// Transient (offline, 5xx) — the next scroll-up past the cooldown retries.
} finally {
this._fullHistoryRepullInFlight = false;
}
}
/**
* Record how much history a replay actually carried, and refresh the banner.
*
* Called from every path that writes a fetched buffer into xterm. Keyed by
* session because the banner describes the ACTIVE tab and a background fetch
* must not relabel it.
*/
_setHistoryTruncation(sessionId, payload = {}) {
if (!sessionId) return;
(this._historyTruncation ||= new Map()).set(sessionId, {
truncated: !!payload.truncated,
reason: payload.truncationReason ?? null,
source: payload.source ?? null,
fullSize: payload.fullSize ?? 0,
retainedBytes: payload.retainedBytes ?? 0,
// Set once a full-history pull has been refused as a downgrade: the
// browser holds more than the server can return, so there is no more.
exhausted: !!payload.exhausted,
});
if (sessionId === this.activeSessionId) this._renderHistoryTruncationBanner();
}
/** Drop banner state for a session that is going away. */
_clearHistoryTruncation(sessionId) {
this._historyTruncation?.delete(sessionId);
if (sessionId === this.activeSessionId) this._renderHistoryTruncationBanner();
}
/**
* Paint the partial-history banner for the active session.
*
* Three distinct states, because "we tailed for speed" and "the oldest output
* is gone forever" are not the same message and the old single boolean could
* not tell them apart:
* - recoverable → offer to load the rest
* - exhausted → say so plainly, offer nothing
* - at the limit → the full capture ITSELF hit the byte ceiling
*/
_renderHistoryTruncationBanner() {
const bar = document.getElementById('historyTruncationBar');
if (!bar) return;
const state = this.activeSessionId ? this._historyTruncation?.get(this.activeSessionId) : null;
const notice = computeHistoryTruncationNotice(state || {});
if (!notice.visible) {
bar.hidden = true;
return;
}
bar.textContent = '';
const label = document.createElement('span');
label.className = 'history-trunc-text';
label.textContent = notice.message;
bar.appendChild(label);
if (notice.canLoadMore) {
const btn = document.createElement('button');
btn.type = 'button';
btn.className = 'history-trunc-load';
btn.textContent = 'Load full history';
btn.onclick = () => {
btn.disabled = true;
btn.textContent = 'Loading…';
// Forced: the cooldown exists to throttle scroll gestures, not choices.
this._maybeRefetchFullHistory({ force: true }).finally(() => {
this._renderHistoryTruncationBanner();
});
};
bar.appendChild(btn);
}
const dismiss = document.createElement('button');
dismiss.type = 'button';
dismiss.className = 'history-trunc-dismiss';
dismiss.setAttribute('aria-label', 'Dismiss history notice');
dismiss.textContent = '×';
dismiss.onclick = () => {
bar.hidden = true;
};
bar.appendChild(dismiss);
bar.hidden = false;
}
_shouldFocusTerminalForTabSwitch() {
if (typeof MobileDetection === 'undefined' || !MobileDetection.isTouchDevice()) {
return true;
}
return typeof KeyboardHandler !== 'undefined' && KeyboardHandler.keyboardVisible;
}
async selectSession(sessionId, options = {}) {
// If this session is popped out into its own window, raise that window
// instead of showing it inline (focus-on-click for detached tabs). If we
// owned a now-closed window, _raiseDetached re-docks and returns false so
// we fall through and load it inline.
if (!this.isSoloWindow && this.detachedSessions.has(sessionId)) {
if (this._raiseDetached(sessionId)) return;
}
const forceReload = options?.forceReload === true;
if (this.activeSessionId === sessionId && !forceReload) return;
if (this.activeSessionId === sessionId && forceReload) {
this.terminalBufferCache?.delete(sessionId);
this._xtermSnapshots?.delete(sessionId);
try { localStorage.removeItem(`codeman-xs-${sessionId}`); } catch {}
this._clearTimer('syncWaitTimeout');
this.pendingWrites = [];
this.writeFrameScheduled = false;
this._isLoadingBuffer = false;
this._loadBufferQueue = null;
this._chunkedWriteGen = (this._chunkedWriteGen || 0) + 1;
this.activeSessionId = null;
}
// Focus terminal SYNCHRONOUSLY before any await — iOS Safari only honors
// programmatic focus() within the user-gesture call stack (e.g. tab click).
// After the first await the gesture context is lost and focus() is silently
// ignored, leaving the keyboard unable to send input to the terminal.
// Desktop always focuses; touch focuses only while the on-screen keyboard
// is already open (so a tab switch doesn't pop the keyboard).
const shouldFocusTerminal = this._shouldFocusTerminalForTabSwitch();
if (shouldFocusTerminal && this.terminal) this.terminal.focus();
const _selStart = performance.now();
const _selName = this.sessions.get(sessionId)?.name || sessionId.slice(0,8);
_crashDiag.log(`SELECT: ${_selName}`);
console.log(`[CRASH-DIAG] selectSession START: ${sessionId.slice(0,8)}`);
const selectGen = ++this._selectGeneration;
this._setTerminalLoadState(sessionId, selectGen, 'resizing');
if (selectGen !== this._selectGeneration) {
this._clearTerminalLoadState(sessionId, selectGen);
return; // newer tab switch won
}
// A session tab takes the stage back from any active web tab.
this._hideWebviewLayer?.();
this._cleanupPreviousSession(sessionId);
this.activeSessionId = sessionId;
// Repaint the partial-history banner for the tab being switched TO. The
// replay paths refresh it when their fetch lands; without this the previous
// session's notice stays on screen until then (#258).
this._renderHistoryTruncationBanner();
try { localStorage.setItem('codeman-active-session', sessionId); } catch {}
// Narrow SSE filter to the active session — server stops streaming
// session:terminal events for other sessions to this client. Cuts
// SSE traffic ~Nx for N concurrent sessions. Fire-and-forget; on the
// rare race where server doesn't know our clientId yet, the next
// selectSession or reconnect catches up.
this._updateSseSubscription(sessionId);
this.hideWelcome();
// Terminal-pane entrance: plays for a freshly created session, and on every
// switch when that option is on. Transform/opacity/clip-path only, xterm's
// FitAddon reads the untransformed layout box, so this cannot reach the PTY.
this.playTerminalEntrance?.(sessionId);
// Clear idle hooks on view, but keep action hooks until user interacts
this.clearPendingHooks(sessionId, 'idle_prompt');
// Instant active-class toggle (no 100ms debounce), then schedule full render for badges/status
this._updateActiveTabImmediate(sessionId);
// Handheld: the session drawer overlays the terminal, so slide it away now
// that a session has been picked. No-op on desktop and in header layout.
this.closeSessionSidebarOnHandheld();
this.renderSessionTabs();
this.updateAttachmentHistoryBadge?.();
if (this.attachmentHistoryDrawerOpen) {
this.loadAttachmentHistory?.(sessionId);
}
this._updateLocalEchoState();
// Shell sessions get the terminal keyboard bar, agent sessions the command
// bar (issue #262). Also disarms a one-shot Ctrl left over from the tab we
// just left, so it can never fire against the session we just opened.
if (typeof KeyboardAccessoryBar !== 'undefined') KeyboardAccessoryBar.refreshForActiveSession();
// Restore flushed offset AND text IMMEDIATELY so backspace/typing work during
// the async buffer load. Without this, the offset is 0 during the
// fetch() gap: backspace is swallowed, and typing a space covers the
// canvas text with an opaque overlay showing only the new char.
if (this._flushedOffsets?.has(sessionId) && this._localEchoOverlay) {
this._localEchoOverlay.setFlushed(
this._flushedOffsets.get(sessionId),
this._flushedTexts?.get(sessionId) || '',
false // render=false: buffer not loaded yet
);
}
// Glow the newly-active tab
const activeTab = document.querySelector(`.session-tab.active[data-id="${sessionId}"]`);
if (activeTab) {
activeTab.classList.add('tab-glow');
activeTab.addEventListener('animationend', () => activeTab.classList.remove('tab-glow'), { once: true });
}
// Check if this is a restored session that needs to be attached
const session = this.sessions.get(sessionId);
// Track working directory for path normalization in Project Insights
this.currentSessionWorkingDir = session?.workingDir || null;
if (session && session.pid === null) {
if (session.respawnBlocked) {
// COD-118: the PTY-exit circuit breaker tripped for this session — the
// automatic re-attach must NOT silently clear it (that would re-arm the
// crash loop on every tab click / page load). Restart only on explicit
// user confirmation; the confirmed request carries clearBreaker:true.
const label = session.name || 'Session';
if (window.confirm(`${label} was stopped after crashing repeatedly. Restart it?`)) {
try {
await fetch(`/api/sessions/${sessionId}/interactive`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ clearBreaker: true }),
});
session.respawnBlocked = false;
session.status = 'busy';
} catch (err) {
console.error('Failed to restart crash-looped session:', err);
}
}
} else {
// Session has no PTY attached — either restored after server restart
// or detached for some other reason. Re-attach regardless of status.
// Deliberately NO body: this automatic path must never clear a tripped
// PTY-exit breaker (COD-118).
try {
const endpoint = session.mode === 'shell'
? `/api/sessions/${sessionId}/shell`
: `/api/sessions/${sessionId}/interactive`;
await fetch(endpoint, { method: 'POST' });
// Update local session state
session.status = 'busy';
} catch (err) {
console.error('Failed to attach to restored session:', err);
}
}
}
// Load terminal buffer for this session
// Show cached content instantly while fetching fresh data in background.
// Use tail mode for faster initial load (128KB is enough for recent visible content).
//
// Protect flushed state during buffer load: terminal.write() can trigger
// xterm.js onData responses (DA, OSC, etc.) that would otherwise clear
// the flushed Maps via the control char handler. The multi-byte ESC
// filter catches most cases, but _restoringFlushedState provides a
// belt-and-suspenders guard for any edge cases.
this._restoringFlushedState = true;
// Gate live SSE terminal writes for the ENTIRE buffer load sequence.
// Without this, SSE events arriving during the fetch() gap compete with
// the buffer write, causing 70KB+ single-frame flushes that stall WebGL.
// chunkedTerminalWrite also sets this, but we need it before the fetch too.
const bufferLoadOwner = this._beginBufferLoad(selectGen);
// COD-144: track whether the load painted nothing (empty fetch + no cache).
// For that just-created-session case we flush (not discard) queued SSE events.
let bufferWasEmpty = false;
try {
// Fit terminal to container BEFORE writing any buffer data.
// If the browser was resized while viewing another session, the terminal
// canvas may be at stale dimensions — content would render at wrong width.
if (this.fitAddon) this.fitAddon.fit();
// Also push the new dimensions to the PTY. Without this, codex/codeman
// sees the size that was set the last time the throttled resize handler
// fired (often the size of a different session's container, or the
// initial tmux default). The visible symptom is codex rendering inside
// a small region with empty rows below the status bar.
// sendResize is a no-op on the server when dims haven't changed, so
// calling it every tab switch is cheap.
const dimsChanged = await this.sendResize(sessionId, { forceHttp: true }).catch(() => false);
if (this._isStaleSelect(selectGen)) {
this._clearTerminalLoadState(sessionId, selectGen);
return;
}
// xterm snapshot restore: if we have a serialized xterm state from a
// previous visit to this session, restore the user's exact prior view
// (viewport + scrollback + colors) for an instant first paint. For codex
// this is also a correctness fix — its byte-stream replay shows only the
// latest TUI frame (the idle welcome banner) because codex doesn't include
// earlier conversation in its current redraw. For claude/opencode/gemini/antigravity
// the replay is already complete, so the snapshot is purely a faster,
// scroll-preserving first paint before the canonical fetch reconciles.
//
// Try in-memory first (fast); fall back to localStorage so snapshots
// survive tab discards / browser reloads.
let snapshot = this._xtermSnapshots?.get(sessionId);
if (snapshot && !this._isUsableXtermSnapshot(snapshot)) {
this._xtermSnapshots?.delete(sessionId);
snapshot = null;
}
if (!snapshot) {
try {
const persisted = localStorage.getItem(`codeman-xs-${sessionId}`);
if (persisted && this._isUsableXtermSnapshot(persisted)) {
snapshot = persisted;
// Hoist into in-memory cache for next time (delete-before-set keeps
// the Map in LRU order so the just-used session isn't evicted first).
this._xtermSnapshots?.delete(sessionId);
this._xtermSnapshots?.set(sessionId, persisted);
} else if (persisted) {
localStorage.removeItem(`codeman-xs-${sessionId}`);
}
} catch (_e) {
/* localStorage unavailable — proceed without snapshot */
}
}
const sessionIsBusy = session && (session.status === 'busy' || session.status === 'working');
let restoredSnapshot = false;
if (snapshot && !sessionIsBusy && session?.mode !== 'shell') {
_crashDiag.log(`SNAPSHOT_RESTORE: ${(snapshot.length/1024).toFixed(0)}KB`);
this._setTerminalLoadState(sessionId, selectGen, 'replaying');
this._resetTerminalForReplay();
await new Promise((resolve) => this.terminal.write(snapshot, resolve));
if (this._isStaleSelect(selectGen)) {
this._clearTerminalLoadState(sessionId, selectGen);
return;
}
this.scrollToLastNonEmptyLine();
_crashDiag.log('SNAPSHOT_RESTORE_DONE');
// Snapshot restore is only first paint. Inactive tabs intentionally
// unsubscribe from high-volume terminal output, so they can miss bytes
// emitted while away. Keep going and replace the snapshot with the
// canonical live tmux pane frame from /terminal.
restoredSnapshot = true;
}
// Instant cache restore for IDLE sessions only.
// For busy sessions, the cache is always stale — writing it first causes a
// jarring double-render: stale content appears, then the terminal flashes
// blank and rewrites with fresh data. Skip the cache and write the fresh
// buffer once for a single clean transition.
const cachedBuffer = this.terminalBufferCache.get(sessionId);
let clearedForBusy = false;
if (cachedBuffer && !sessionIsBusy && !restoredSnapshot) {
_crashDiag.log(`CACHE_WRITE: ${(cachedBuffer.length/1024).toFixed(0)}KB`);
this._setTerminalLoadState(sessionId, selectGen, 'replaying');
this._resetTerminalForReplay();
await this.chunkedTerminalWrite(cachedBuffer, TERMINAL_CHUNK_SIZE, bufferLoadOwner);
if (this._isStaleSelect(selectGen)) {
this._clearTerminalLoadState(sessionId, selectGen);
return;
}
this.terminal.scrollToBottom();
_crashDiag.log('CACHE_DONE');
} else if (sessionIsBusy) {
// Clear stale content immediately — fresh buffer is being fetched
this._resetTerminalForReplay();
clearedForBusy = true;
_crashDiag.log('CACHE_SKIP_BUSY');
}
// Give TUI sessions a short chance to redraw after resize before the
// fresh buffer fetch. Only needed when the resize actually changed
// dimensions (a real SIGWINCH → Ink redraw); a same-size tab switch sent
// no resize, so waiting would just add latency. Shell sessions never need
// it, so terminal content can appear immediately when switching shells.
if (session?.mode !== 'shell' && dimsChanged) {
await new Promise((resolve) => setTimeout(resolve, TUI_REDRAW_SETTLE_MS));
if (this._isStaleSelect(selectGen)) {
this._clearTerminalLoadState(sessionId, selectGen);
return;
}
}
this._setTerminalLoadState(sessionId, selectGen, 'fetching');
_crashDiag.log('FETCH_START');
// The first load OF EACH SESSION this page load requests the full tmux
// scrollback (?full=1, COD-47) so history that scrolled off the server's byte
// buffer comes back. Later switches to an already-replayed session keep the
// fast ?tail= frame path, which is why this is a Set and not a flag: the flag
// version gave the full replay to the auto-selected tab and one frame of
// history to every other one (issue #205).
const useFullHistory = !this._fullHistoryLoaded.has(sessionId);
if (useFullHistory) this._fullHistoryLoaded.add(sessionId);
const res = await fetch(
useFullHistory
? `/api/sessions/${sessionId}/terminal?full=1`
: `/api/sessions/${sessionId}/terminal?tail=${TERMINAL_TAIL_SIZE}`
);
if (this._isStaleSelect(selectGen)) {
this._clearTerminalLoadState(sessionId, selectGen);
return;
}
const data = (await res.json())?.data ?? {};
_crashDiag.log(`FETCH_DONE: ${data.terminalBuffer ? (data.terminalBuffer.length/1024).toFixed(0) + 'KB' : 'empty'} truncated=${data.truncated}`);
if (data.terminalBuffer) {
// Skip rewrite if fresh buffer matches cache — avoids visible clear+rewrite flash.
// On slow connections (mobile 5G), the gap between clear() and chunkedWrite() is
// very visible, causing the terminal to flash blank then repaint.
// A snapshot restore or a busy-clear leaves the terminal showing
// something other than the cache, so the fetched buffer must be
// replayed even when it byte-matches the cache.
const needsRewrite =
restoredSnapshot || clearedForBusy || data.terminalBuffer !== cachedBuffer;
if (needsRewrite) {
_crashDiag.log(`REWRITE: ${(data.terminalBuffer.length/1024).toFixed(0)}KB`);
this._setTerminalLoadState(sessionId, selectGen, 'replaying');
this._resetTerminalForReplay();
// Truncation is reported OUT OF BAND (#258). This used to write a grey
// "... earlier output truncated ..." line into the
// terminal itself, which scrolls away with the output it describes,
// cannot be actioned, and is indistinguishable from real CLI output.
this._setHistoryTruncation(sessionId, data);
// Use chunked write for large buffers to avoid UI jank
await this.chunkedTerminalWrite(data.terminalBuffer, TERMINAL_CHUNK_SIZE, bufferLoadOwner);
if (this._isStaleSelect(selectGen)) {
this._clearTerminalLoadState(sessionId, selectGen);
return;
}
// Ensure terminal is scrolled to bottom after buffer load
this.terminal.scrollToBottom();
}
// Update cache (cap at 20 entries)
this.terminalBufferCache.set(sessionId, data.terminalBuffer);
if (this.terminalBufferCache.size > 20) {
// Evict oldest entry (first key in Map iteration order)
const oldest = this.terminalBufferCache.keys().next().value;
this.terminalBufferCache.delete(oldest);
}
} else if (!cachedBuffer) {
// No fresh buffer and no cache — clear any stale content
this._resetTerminalForReplay();
bufferWasEmpty = true;
}
// Buffer load complete — unblock live SSE writes. chunkedTerminalWrite calls
// _finishBufferLoad internally (discarding queued events to prevent duplicate
// content); if we skipped the write (cache hit or empty), call it here.
// COD-144: when the load painted nothing, FLUSH the queued events instead of
// discarding — a new session's prompt arrives only as a queued SSE event.
if (this._isLoadingBuffer) {
this._finishBufferLoad(bufferLoadOwner, { flushQueued: bufferWasEmpty });
}
// Drop the guard so user input clears state normally
this._restoringFlushedState = false;
// Restore flushed offset and text for this session so the overlay positions
// correctly even before the PTY echo arrives in the terminal buffer.
if (this._flushedOffsets?.has(sessionId) && this._localEchoOverlay) {
this._localEchoOverlay.setFlushed(
this._flushedOffsets.get(sessionId),
this._flushedTexts?.get(sessionId) || '',
false // render=false: buffer just loaded, defer to rerender
);
// Trigger render after xterm.js finishes processing the buffer data.
// terminal.write('', callback) fires the callback after ALL previously
// queued writes have been parsed — so findPrompt() can find ❯ in the buffer.
const zl = this._localEchoOverlay;
this.terminal.write('', () => {
if (zl.hasPending) zl.rerender();
});
}
// Fire-and-forget resize to nudge Ink via SIGWINCH on real size changes.
// Previously we also sent Ctrl+L (\x0c) here to force a full Ink redraw,
// but Claude Code 2.x treats Ctrl+L as a two-step "clear conversation"
// command — if a page refresh or SSE reconnect ran selectSession twice
// within Claude's confirmation window, the second \x0c silently wiped the
// conversation. Stale Ink frames in the tailed buffer are a cosmetic
// annoyance that disappear on the user's next keypress; data loss is not
// acceptable. Do NOT re-introduce Ctrl+L here.
this.sendResize(sessionId);
// Defer secondary panel updates so they don't block the main thread
// after terminal content is already visible.
const idleCb = typeof requestIdleCallback === 'function' ? requestIdleCallback : (cb) => setTimeout(cb, 16);
idleCb(() => {
// Guard against stale generation — user may have switched tabs again
if (selectGen !== this._selectGeneration) return;
// Update respawn banner
if (this.respawnStatus[sessionId]) {
this.showRespawnBanner();
this.updateRespawnBanner(this.respawnStatus[sessionId].state);
document.getElementById('respawnCycleCount').textContent = this.respawnStatus[sessionId].cycleCount || 0;
this.updateCountdownTimerDisplay();
this.updateActionLogDisplay();
if (Object.keys(this.respawnCountdownTimers[sessionId] || {}).length > 0) {
this.startCountdownInterval();
}
} else {
this.hideRespawnBanner();
this.stopCountdownInterval();
}
// Update task panel if open
const taskPanel = document.getElementById('taskPanel');
if (taskPanel && taskPanel.classList.contains('open')) {
this.renderTaskPanel();
}
// Update ralph state panel for this session
const curSession = this.sessions.get(sessionId);
if (curSession && (curSession.ralphLoop || curSession.ralphTodos)) {
this.updateRalphState(sessionId, {
loop: curSession.ralphLoop,
todos: curSession.ralphTodos
});
}
this.renderRalphStatePanel();
// Update CLI info bar (mobile - shows Claude version/model)
this.updateCliInfoDisplay();
// Update project insights panel for this session
this.renderProjectInsightsPanel();
// Update subagent window visibility for active session
this.updateSubagentWindowVisibility();
// Load file browser if enabled
const settings = this.loadAppSettingsFromStorage();
if (settings.showFileBrowser) {
const fileBrowserPanel = this.$('fileBrowserPanel');
if (fileBrowserPanel) {
fileBrowserPanel.classList.add('visible');
this.loadFileBrowser(sessionId);
// Attach drag listeners if not already attached
if (!this.fileBrowserDragListeners) {
const header = fileBrowserPanel.querySelector('.file-browser-header');
if (header) {
const onFirstDrag = () => {
if (!fileBrowserPanel.style.left) {
const rect = fileBrowserPanel.getBoundingClientRect();
fileBrowserPanel.style.left = `${rect.left}px`;
fileBrowserPanel.style.top = `${rect.top}px`;
fileBrowserPanel.style.right = 'auto';
}
};
header.addEventListener('mousedown', onFirstDrag);
header.addEventListener('touchstart', onFirstDrag, { passive: true });
this.fileBrowserDragListeners = this.makeWindowDraggable(fileBrowserPanel, header);
this.fileBrowserDragListeners._onFirstDrag = onFirstDrag;
}
}
}
}
});
// Open WebSocket for low-latency terminal I/O (after buffer load completes)
this._connectWs(sessionId);
_crashDiag.log('FOCUS');
if (shouldFocusTerminal && this.terminal) this.terminal.focus();
this.scrollToLastNonEmptyLine();
// If we switched INTO this tab while the soft keyboard is already up, no
// viewport-resize transition fires (handleViewportResize only runs
// onKeyboardShow on a hidden→visible change), so the newly-active
// session never gets that heal: fit() + scrollToBottom() + local-echo
// overlay rerender() + one-shot SIGWINCH. Without it the overlay renders
// against stale, off-bottom state and typed input stays INVISIBLE until
// the user manually toggles the keyboard. Replicate the heal here so
// local echo paints on the first keystroke after a keyboard-up tab switch.
if (typeof KeyboardHandler !== 'undefined' && KeyboardHandler.keyboardVisible) {
KeyboardHandler.onKeyboardShow();
}
this._clearTerminalLoadState(sessionId, selectGen);
_crashDiag.log(`SELECT_DONE: ${(performance.now() - _selStart).toFixed(0)}ms`);
console.log(`[CRASH-DIAG] selectSession DONE: ${sessionId.slice(0,8)} in ${(performance.now() - _selStart).toFixed(0)}ms`);
} catch (err) {
if (this._isLoadingBuffer) this._finishBufferLoad(bufferLoadOwner);
this._restoringFlushedState = false;
this._setTerminalLoadState(sessionId, selectGen, 'failed');
console.error('Failed to load session terminal:', err);
}
}
// Shared cleanup for all session data — called from both closeSession() and session:deleted handler
_cleanupSessionData(sessionId) {
// If the deleted session is currently being renamed, abort the rename
// so the inline <input> doesn't ghost as a stale tab on screen.
if (this._activeRename?.sessionId === sessionId) {
this._activeRename.cancel();
}
this.sessions.delete(sessionId);
// Remove from tab order
const orderIndex = this.sessionOrder.indexOf(sessionId);
if (orderIndex !== -1) {
this.sessionOrder.splice(orderIndex, 1);
this.saveSessionOrder();
}
this.terminalBuffers.delete(sessionId);
this.terminalBufferCache.delete(sessionId);
this._clearHistoryTruncation(sessionId);
this._xtermSnapshots?.delete(sessionId);
try { localStorage.removeItem(`codeman-xs-${sessionId}`); } catch {}
this._flushedOffsets?.delete(sessionId);
this._flushedTexts?.delete(sessionId);
// Drop any durably-queued input for a session that's actually gone (deleted/
// exited). Not a lost prompt — the target no longer exists. Only reached on
// real session removal, never on a tab switch.
this._pendingDeliveries?.delete(sessionId);
this._seqCounters?.delete(sessionId);
this._postDraining?.delete(sessionId);
this._persistReliableState();
this.ralphStates.delete(sessionId);
this.ralphClosedSessions.delete(sessionId);
this.projectInsights.delete(sessionId);
this.pendingHooks.delete(sessionId);
this.tabAlerts.delete(sessionId);
this.attachmentHistoryCounts.delete(sessionId);
if (this.attachmentHistoryDrawerOpen && this.activeSessionId === sessionId) {
this.closeAttachmentHistory?.();
}
this.terminalLoadStates.delete(sessionId);
this.clearCountdownTimers(sessionId);
this.closeSessionLogViewerWindows(sessionId);
this.closeSessionImagePopups(sessionId);
this.closeSessionAttachmentCards(sessionId);
this.closeSessionSubagentWindows(sessionId, true);
// Clean up idle timer
const idleTimer = this.idleTimers.get(sessionId);
if (idleTimer) {
clearTimeout(idleTimer);
this.idleTimers.delete(sessionId);
}
// Clean up respawn state
delete this.respawnStatus[sessionId];
delete this.respawnTimers[sessionId];
delete this.respawnCountdownTimers[sessionId];
delete this.respawnActionLogs[sessionId];
}
async closeSession(sessionId, killMux = true) {
try {
await this._apiDelete(`/api/sessions/${sessionId}?killMux=${killMux}`);
this._cleanupSessionData(sessionId);
if (this.activeSessionId === sessionId) {
this.activeSessionId = null;
try { localStorage.removeItem('codeman-active-session'); } catch {}
// Select another session or show welcome (use sessionOrder for consistent ordering)
if (this.sessionOrder.length > 0 && this.sessions.size > 0) {
const nextSessionId = this.sessionOrder[0];
this.selectSession(nextSessionId);
} else {
this.terminal.clear();
this.showWelcome();
this.renderRalphStatePanel(); // Clear ralph panel when no sessions
}
}
this.renderSessionTabs();
if (killMux) {
this.showToast('Session closed and tmux killed', 'success');
} else {
this.showToast('Tab hidden, tmux still running', 'info');
}
} catch (err) {
this.showToast('Failed to close session', 'error');
}
}
// Request confirmation before closing a session
requestCloseSession(sessionId) {
const session = this.sessions.get(sessionId);
if (!session) return;
this.pendingCloseSessionId = sessionId;
// Show session name in confirmation dialog
const name = this.getSessionName(session);
const sessionNameEl = document.getElementById('closeConfirmSessionName');
sessionNameEl.textContent = name;
// Update kill button text based on session mode
const killTitle = document.getElementById('closeConfirmKillTitle');
if (killTitle) {
killTitle.textContent = session.mode === 'opencode'
? 'Kill Tmux & OpenCode'
: session.mode === 'codex'
? 'Kill Tmux & Codex'
: session.mode === 'gemini'
? 'Kill Tmux & Gemini'
: session.mode === 'antigravity'
? 'Kill Tmux & Antigravity'
: session.mode === 'pi'
? 'Kill Tmux & Pi'
: 'Kill Tmux & Claude Code';
}
document.getElementById('closeConfirmModal').classList.add('active');
}
cancelCloseSession() {
this.pendingCloseSessionId = null;
document.getElementById('closeConfirmModal').classList.remove('active');
}
async confirmCloseSession(killMux = true) {
const sessionId = this.pendingCloseSessionId;
this.cancelCloseSession();
if (sessionId) {
await this.closeSession(sessionId, killMux);
}
}
nextSession() {
if (this.sessionOrder.length <= 1) return;
const currentIndex = this.sessionOrder.indexOf(this.activeSessionId);
const nextIndex = (currentIndex + 1) % this.sessionOrder.length;
this.selectSession(this.sessionOrder[nextIndex]);
}
prevSession() {
if (this.sessionOrder.length <= 1) return;
const currentIndex = this.sessionOrder.indexOf(this.activeSessionId);
const prevIndex = (currentIndex - 1 + this.sessionOrder.length) % this.sessionOrder.length;
this.selectSession(this.sessionOrder[prevIndex]);
}
// ═══════════════════════════════════════════════════════════════
// Navigation
// ═══════════════════════════════════════════════════════════════
goHome() {
// Deselect active session and show welcome screen
this.activeSessionId = null;
try { localStorage.removeItem('codeman-active-session'); } catch {}
this.terminal.clear();
this.showWelcome();
this.renderSessionTabs();
this.renderRalphStatePanel();
}
// ═══════════════════════════════════════════════════════════════
// Ralph Loop Wizard (methods in ralph-wizard.js)
// ═══════════════════════════════════════════════════════════════
// Wizard state (initialized here, methods loaded from ralph-wizard.js)
ralphWizardStep = 1;
ralphWizardConfig = {
taskDescription: '',
completionPhrase: 'COMPLETE',
maxIterations: 10,
caseName: 'testcase',
enableRespawn: false,
generatedPlan: null,
planGenerated: false,
skipPlanGeneration: false,
planDetailLevel: 'detailed',
existingPlan: null,
useExistingPlan: false,
};
planLoadingTimer = null;
planLoadingStartTime = null;
// ═══════════════════════════════════════════════════════════════
// Kill Sessions
// ═══════════════════════════════════════════════════════════════
async killActiveSession() {
if (!this.activeSessionId) {
this.showToast('No active session', 'warning');
return;
}
await this.closeSession(this.activeSessionId);
}
async killAllSessions() {
if (this.sessions.size === 0) return;
if (!confirm(`Kill all ${this.sessions.size} session(s)?`)) return;
try {
await this._apiDelete('/api/sessions');
this.sessions.clear();
this.terminalBuffers.clear();
this.terminalBufferCache.clear();
this.terminalLoadStates.clear();
this._xtermSnapshots?.clear();
try {
for (const k of Object.keys(localStorage)) {
if (k.startsWith('codeman-xs-')) localStorage.removeItem(k);
}
} catch {}
this.activeSessionId = null;
try { localStorage.removeItem('codeman-active-session'); } catch {}
this.respawnStatus = {};
this.respawnCountdownTimers = {};
this.respawnActionLogs = {};
this.stopCountdownInterval();
this.hideRespawnBanner();
this.renderSessionTabs();
this.terminal.clear();
this.showWelcome();
this.showToast('All sessions killed', 'success');
} catch (err) {
this.showToast('Failed to kill sessions', 'error');
}
}
// ═══════════════════════════════════════════════════════════════
// Timer
// ═══════════════════════════════════════════════════════════════
showTimer() {
document.getElementById('timerBanner').style.display = 'flex';
this.updateTimer();
this.timerInterval = setInterval(() => this.updateTimer(), 1000);
}
hideTimer() {
document.getElementById('timerBanner').style.display = 'none';
if (this.timerInterval) {
clearInterval(this.timerInterval);
this.timerInterval = null;
}
}
updateTimer() {
if (!this.currentRun || this.currentRun.status !== 'running') return;
const now = Date.now();
const remaining = Math.max(0, this.currentRun.endAt - now);
const total = this.currentRun.endAt - this.currentRun.startedAt;
const elapsed = now - this.currentRun.startedAt;
const percent = Math.min(100, (elapsed / total) * 100);
document.getElementById('timerValue').textContent = this.formatTime(remaining);
document.getElementById('timerProgress').style.width = `${percent}%`;
document.getElementById('timerMeta').textContent =
`${this.currentRun.completedTasks} tasks | $${this.currentRun.totalCost.toFixed(2)}`;
}
async stopCurrentRun() {
if (!this.currentRun) return;
try {
await fetch(`/api/scheduled/${this.currentRun.id}`, { method: 'DELETE' });
} catch (err) {
this.showToast('Failed to stop run', 'error');
}
}
formatTime(ms) {
const s = Math.floor(ms / 1000);
const h = Math.floor(s / 3600);
const m = Math.floor((s % 3600) / 60);
const sec = s % 60;
return `${h.toString().padStart(2, '0')}:${m.toString().padStart(2, '0')}:${sec.toString().padStart(2, '0')}`;
}
// ═══════════════════════════════════════════════════════════════
// Tokens
// ═══════════════════════════════════════════════════════════════
updateCost() {
// Now updates tokens instead of cost
this.updateTokens();
}
updateTokens() {
// Debounce at 200ms — token display is non-critical and shouldn't
// compete with input handling on the main thread
this._clearTimer('_updateTokensTimeout');
this._updateTokensTimeout = setTimeout(() => {
this._updateTokensTimeout = null;
this._updateTokensImmediate();
}, 200);
}
_updateTokensImmediate() {
// Use global stats if available (includes deleted sessions)
let totalInput = 0;
let totalOutput = 0;
if (this.globalStats) {
totalInput = this.globalStats.totalInputTokens || 0;
totalOutput = this.globalStats.totalOutputTokens || 0;
} else {
// Fallback to active sessions only
this.sessions.forEach(s => {
if (s.tokens) {
totalInput += s.tokens.input || 0;
totalOutput += s.tokens.output || 0;
}
});
}
const total = totalInput + totalOutput;
this.totalTokens = total;
const display = this.formatTokens(total);
// Estimate cost from tokens (more accurate than stored cost in interactive mode)
const estimatedCost = this.estimateCost(totalInput, totalOutput);
const tokenEl = this.$('headerTokens');
if (tokenEl) {
const settings = this.loadAppSettingsFromStorage();
const showCost = settings.showCost ?? false;
tokenEl.textContent = total > 0
? (showCost ? `${display} tokens · $${estimatedCost.toFixed(2)}` : `${display} tokens`)
: '0 tokens';
tokenEl.title = this.globalStats
? `Lifetime: ${this.globalStats.totalSessionsCreated} sessions created${showCost ? '\nEstimated cost based on Claude Opus pricing' : ''}`
: `Token usage across active sessions${showCost ? '\nEstimated cost based on Claude Opus pricing' : ''}`;
}
}
// ─── Shortcut Registry ───────────────────────────────────────────────────────
// Returns the merged shortcut list: DEFAULT_SHORTCUTS with any per-shortcut
// overrides from settings.shortcutOverrides applied on top.
getShortcutRegistry() {
const settings = this.loadAppSettingsFromStorage();
const shortcutOverrides = settings.shortcutOverrides || {};
return DEFAULT_SHORTCUTS.map((shortcut) => {
const override = shortcutOverrides[shortcut.id];
if (!override) return shortcut;
// Only binding-shaped fields may come from storage — id/label/group/action
// stay trusted so persisted data can never redirect a shortcut's action or
// spoof another row in the settings/overlay renderers.
const merged = { ...shortcut };
if (Array.isArray(override.bindings)) {
merged.bindings = override.bindings;
delete merged.displayBindings; // show the override, not the stale default label
}
if (typeof override.disabled === 'boolean') merged.disabled = override.disabled;
return merged;
});
}
matchesShortcutEvent(e, shortcut) {
if (!shortcut || !Array.isArray(shortcut.bindings)) return false;
return shortcut.bindings.some((binding) => {
const mods = binding.modifiers || [];
// Ctrl and Cmd are interchangeable as the primary modifier (parity with
// the legacy shortcut table), but every OTHER pressed modifier must be
// declared by the binding — a plain Ctrl+K binding must not also swallow
// Ctrl+Shift+K (the Firefox devtools chord).
const wantsPrimary = mods.includes('ctrl') || mods.includes('meta');
if (wantsPrimary !== !!(e.ctrlKey || e.metaKey)) return false;
if (mods.includes('shift') !== !!e.shiftKey) return false;
if (mods.includes('alt') !== !!e.altKey) return false;
// Match the physical key when the binding pins one (layout-independent),
// or the produced character otherwise (layout-dependent keys like '+').
if (binding.code && e.code === binding.code) return true;
if (binding.key && typeof e.key === 'string' && e.key.toLowerCase() === binding.key.toLowerCase()) return true;
return false;
});
}
// ─── Shortcut Overlay Modal ───────────────────────────────────────────────────
// Ctrl/Alt+? opens a floating overlay listing all keyboard shortcuts, grouped
// by category. Uses the merged registry so user overrides are reflected.
showShortcutOverlay() {
const modal = document.getElementById('shortcutOverlayModal');
if (!modal) return;
this.renderShortcutOverlay();
modal.classList.add('active');
modal.focus?.();
}
renderShortcutOverlay() {
const list = document.getElementById('shortcutOverlayList');
if (!list) return;
const registry = this.getShortcutRegistry();
const groups = {};
for (const shortcut of registry) {
const g = shortcut.group || 'General';
if (!groups[g]) groups[g] = [];
groups[g].push(shortcut);
}
const fmtBindings = (s) => {
if (s.displayBindings) return s.displayBindings.map((b) => `<kbd>${escapeHtml(b)}</kbd>`).join(' / ');
if (!s.bindings) return '';
return s.bindings.map((b) => {
const parts = [...(b.modifiers || []).map((m) => m.charAt(0).toUpperCase() + m.slice(1)), b.key || b.code || ''];
return `<kbd>${escapeHtml(parts.join('+'))}</kbd>`;
}).join(' / ');
};
list.innerHTML = Object.entries(groups).map(([group, items]) =>
`<div class="shortcut-overlay-group"><div class="shortcut-overlay-group-label">${escapeHtml(group)}</div>` +
items.map((s) => `<div class="shortcut-overlay-row"><span class="shortcut-overlay-label">${escapeHtml(s.label)}</span><span class="shortcut-overlay-keys">${fmtBindings(s)}</span></div>`).join('') +
`</div>`
).join('');
}
closeShortcutOverlay() {
const modal = document.getElementById('shortcutOverlayModal');
if (modal) modal.classList.remove('active');
}
}
// ═══════════════════════════════════════════════════════════════
// Module Init — localStorage migration and app start
// ═══════════════════════════════════════════════════════════════
// Migrate legacy localStorage keys (claudeman-* → codeman-*)
try {
for (let i = 0; i < localStorage.length; i++) {
const key = localStorage.key(i);
if (key && (key.startsWith('claudeman-') || key.startsWith('claudeman_'))) {
const newKey = key.replace(/^claudeman[-_]/, (m) => 'codeman' + m.charAt(m.length - 1));
if (localStorage.getItem(newKey) === null) {
localStorage.setItem(newKey, localStorage.getItem(key));
}
}
}
} catch {}
// Initialize — use DOMContentLoaded to ensure all defer'd mixin modules
// (terminal-ui.js, settings-ui.js, etc.) have executed their Object.assign
// onto CodemanApp.prototype before we instantiate.
let app;
document.addEventListener('DOMContentLoaded', () => {
app = new CodemanApp();
window.app = app;
});
window.MobileDetection = MobileDetection;