50406caab0
Opening the app no longer auto-creates a blank tab or auto-restores/discovers sessions as tabs. Instead it lands on a launcher (session chooser): a grid of the host's running sessions as live preview thumbnails — pick one to open (replays its full scrollback), or '+ New session'. Closing the last tab returns to the chooser. - public/launcher.ts: mountLauncher() renders the chooser into the terminal area (live xterm thumbnails via /live-sessions + /preview, 5s refresh), New session + Manage link - tabs.ts: drop restore()/syncLiveSessions() auto-tab behavior; constructor lands on the launcher; rebuild() toggles launcher when tab count is 0; closeTab no longer spawns a blank tab - style.css: .launcher chrome (reuses the .mg-* card/grid/thumbnail styles) Verified: fresh load → 0 tabs, chooser with thumbnails; Open → tab + chooser hides; close last tab → chooser returns. 228 tests green, tsc + build clean.
462 lines
16 KiB
TypeScript
462 lines
16 KiB
TypeScript
/**
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* public/tabs.ts — multi-tab manager + tab bar UI.
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*
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* Each tab owns an independent TerminalSession (own WS + server session).
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*
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* Titles: auto from the terminal (current folder, via folderFromTitle) →
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* double-click to rename inline → falls back to "Term N". Manual wins.
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* Interaction: pointerdown to switch (robust with draggable), drag to reorder,
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* middle-click / × to close, status dot (connection color), unread dot.
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*
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* DOM is built once per tab and updated in place. A full rebuild happens ONLY
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* on structural changes (add / close / reorder / rename) — never on a plain
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* activate or on background output — so clicks are never eaten by a re-render.
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*
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* Closing a tab only disconnects its WS (a *detach*); the server PTY keeps
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* running and is reclaimed by IDLE_TTL.
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*/
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import { TerminalSession } from './terminal-session.js'
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import { THEMES, DEFAULT_SETTINGS, type Settings } from './settings.js'
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import { mountLauncher, type Launcher } from './launcher.js'
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const TABS_KEY = 'web-terminal:tabs'
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const ACTIVE_KEY = 'web-terminal:active'
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interface TabEntry {
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session: TerminalSession
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customTitle: string | null // user-set; null = use auto/fallback (persisted)
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autoTitle: string | null // current folder from the terminal title
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hasActivity: boolean // inactive tab got output since last viewed
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el: HTMLDivElement | null // the .tab element (updated in place)
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}
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interface StoredTab {
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id: string | null
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title: string | null
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}
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export class TabApp {
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private readonly tabs: TabEntry[] = []
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private activeIndex = -1
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private editingIndex = -1
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private dragIndex = -1
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private notifyAsked = false
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private settings: Settings = DEFAULT_SETTINGS
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private readonly paneHost: HTMLElement
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private readonly tabBar: HTMLElement
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private readonly approvalBar: HTMLDivElement
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private readonly launcher: Launcher
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private launcherVisible = false
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constructor(paneHost: HTMLElement, tabBar: HTMLElement) {
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this.paneHost = paneHost
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this.tabBar = tabBar
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this.approvalBar = document.createElement('div')
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this.approvalBar.id = 'approvalbar'
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this.approvalBar.style.display = 'none'
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document.body.appendChild(this.approvalBar)
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this.launcher = mountLauncher(this.paneHost, {
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onOpen: (id) => this.openSession(id),
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onNew: () => this.newTab(),
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})
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// v0.5: do NOT auto-create or auto-restore tabs. Land on the launcher (the
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// session chooser); the user picks which session to open. Sessions persist
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// server-side, so opening one replays its full scrollback.
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this.rebuild()
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this.updateLauncher()
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}
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/** Show the launcher (session chooser) iff no tab is open. */
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private updateLauncher(): void {
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const empty = this.tabs.length === 0
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if (empty === this.launcherVisible) return
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this.launcherVisible = empty
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this.launcher.setVisible(empty)
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}
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/** Show/hide the approve/reject banner for the active tab's held request (H3). */
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private updateApprovalBar(): void {
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const session = this.tabs[this.activeIndex]?.session
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if (!session || !session.pendingApproval) {
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this.approvalBar.style.display = 'none'
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return
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}
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this.approvalBar.replaceChildren()
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const label = document.createElement('span')
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label.className = 'approval-label'
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label.textContent = `Claude wants to use ${session.pendingTool ?? 'a tool'}`
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const approve = document.createElement('button')
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approve.className = 'approval-yes'
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approve.textContent = '✓ Approve'
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approve.addEventListener('click', () => {
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session.approve()
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this.updateApprovalBar()
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})
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const reject = document.createElement('button')
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reject.className = 'approval-no'
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reject.textContent = '✗ Reject'
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reject.addEventListener('click', () => {
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session.reject()
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this.updateApprovalBar()
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})
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this.approvalBar.append(label, approve, reject)
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this.approvalBar.style.display = 'flex'
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}
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private displayTitle(entry: TabEntry, idx: number): string {
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return entry.customTitle ?? entry.autoTitle ?? `Term ${idx + 1}`
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}
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/* ── persistence ─────────────────────────────────────────────── */
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private persist(): void {
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try {
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const stored: StoredTab[] = this.tabs.map((t) => ({ id: t.session.id, title: t.customTitle }))
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localStorage.setItem(TABS_KEY, JSON.stringify(stored))
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localStorage.setItem(ACTIVE_KEY, String(this.activeIndex))
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} catch {
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// localStorage unavailable — run without persistence
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}
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}
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/** The active tab's server session id (null until it has attached). */
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activeSessionId(): string | null {
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return this.tabs[this.activeIndex]?.session.id ?? null
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}
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/** Focus the tab for `sessionId`, or open one that joins it (share-link target). */
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openSession(sessionId: string): void {
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const existing = this.tabs.findIndex((t) => t.session.id === sessionId)
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if (existing >= 0) {
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this.activate(existing)
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return
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}
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this.addEntry(sessionId, null)
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this.persist()
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this.rebuild()
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this.activate(this.tabs.length - 1)
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}
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/* ── tab lifecycle ───────────────────────────────────────────── */
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private addEntry(
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sessionId: string | null,
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customTitle: string | null,
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cwd?: string,
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initialInput?: string,
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): TabEntry {
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const entry: TabEntry = {
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session: null as unknown as TerminalSession,
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customTitle,
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autoTitle: null,
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hasActivity: false,
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el: null,
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}
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entry.session = new TerminalSession({
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sessionId,
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...(cwd !== undefined ? { cwd } : {}),
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...(initialInput !== undefined ? { initialInput } : {}),
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onSessionId: () => this.persist(),
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// onActivity only fires for hidden (inactive) panes (see TerminalSession).
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onActivity: () => {
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entry.hasActivity = true
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this.refreshTab(entry)
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},
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onTitle: (title) => {
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entry.autoTitle = title.trim() || null
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this.refreshTab(entry)
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},
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onStatus: () => this.refreshTab(entry),
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onClaudeStatus: (status) => {
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this.refreshTab(entry)
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this.updateApprovalBar()
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// Notify when a background tab needs approval (H2/H4).
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if (status === 'waiting' && this.tabs.indexOf(entry) !== this.activeIndex) {
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this.notify(entry)
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}
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},
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})
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this.paneHost.appendChild(entry.session.el)
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this.tabs.push(entry)
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entry.session.applyTheme(THEMES[this.settings.theme] ?? THEMES['dark']!, this.settings.fontSize)
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entry.session.connect()
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return entry
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}
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newTab(): void {
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// M6: open the new tab in the active tab's current directory, if known.
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const cwd = this.tabs[this.activeIndex]?.session.cwd ?? undefined
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this.addEntry(null, null, cwd)
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this.persist()
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this.rebuild()
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this.activate(this.tabs.length - 1)
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}
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/** O2: open a new tab in `cwd` and run `claude --resume <id>`. */
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newTabForResume(cwd: string, sessionId: string): void {
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this.addEntry(null, null, cwd || undefined, `claude --resume ${sessionId}`)
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this.persist()
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this.rebuild()
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this.activate(this.tabs.length - 1)
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}
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activate(i: number): void {
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if (i < 0 || i >= this.tabs.length) return
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this.maybeAskNotify() // first switch is a user gesture — request notif permission
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this.activeIndex = i
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const entry = this.tabs[i]
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if (entry) entry.hasActivity = false // viewing clears the unread dot
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this.tabs.forEach((t, idx) => (idx === i ? t.session.show() : t.session.hide()))
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this.tabs.forEach((t) => this.refreshTab(t)) // in-place class/text update, no rebuild
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this.updateApprovalBar()
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this.persist()
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}
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closeTab(i: number): void {
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if (i < 0 || i >= this.tabs.length) return
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const [entry] = this.tabs.splice(i, 1)
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entry?.session.dispose()
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if (this.editingIndex === i) this.editingIndex = -1
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if (this.tabs.length === 0) {
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// v0.5: closing the last tab returns to the launcher — no auto-blank tab.
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this.activeIndex = -1
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this.persist()
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this.rebuild() // updateLauncher() (in rebuild) shows the chooser
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this.updateApprovalBar()
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return
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}
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const next = Math.min(i, this.tabs.length - 1)
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this.persist()
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this.rebuild()
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this.activate(next)
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}
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private moveTab(from: number, to: number): void {
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if (from < 0 || to < 0 || from === to || from >= this.tabs.length || to >= this.tabs.length) {
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return
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}
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const activeEntry = this.tabs[this.activeIndex]
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const [moved] = this.tabs.splice(from, 1)
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if (!moved) return
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this.tabs.splice(to, 0, moved)
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if (activeEntry) this.activeIndex = this.tabs.indexOf(activeEntry)
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this.persist()
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this.rebuild()
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}
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private commitRename(i: number, value: string): void {
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const entry = this.tabs[i]
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if (entry) {
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const trimmed = value.trim()
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entry.customTitle = trimmed.length > 0 ? trimmed : null // empty → revert to auto
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}
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this.editingIndex = -1
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this.persist()
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this.rebuild()
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}
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/** Route key-bar input to the currently active tab. */
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sendToActive(data: string): void {
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this.tabs[this.activeIndex]?.session.send(data)
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}
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/** Re-assert the active tab's size (latest-writer-wins) when this device
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* regains focus, so a shared session snaps back to this screen's size. */
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refitActive(): void {
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this.tabs[this.activeIndex]?.session.refit()
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}
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/** Apply theme + font settings to every terminal (M3). */
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applySettings(s: Settings): void {
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this.settings = s
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const theme = THEMES[s.theme] ?? THEMES['dark']!
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for (const t of this.tabs) t.session.applyTheme(theme, s.fontSize)
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}
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/** A read-only view of all tabs for the dashboard (M7). */
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snapshot(): Array<{
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idx: number
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title: string
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conn: string
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claude: string
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active: boolean
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pending: boolean
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}> {
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return this.tabs.map((t, idx) => ({
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idx,
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title: this.displayTitle(t, idx),
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conn: t.session.status,
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claude: t.session.claudeStatus,
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active: idx === this.activeIndex,
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pending: t.session.pendingApproval,
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}))
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}
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focusTab(idx: number): void {
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this.activate(idx)
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}
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/** Scrollback search in the active tab (M1). */
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findInActive(query: string, dir: 'next' | 'prev'): void {
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const s = this.tabs[this.activeIndex]?.session
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if (!s) return
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if (dir === 'next') s.findNext(query)
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else s.findPrevious(query)
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}
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clearActiveSearch(): void {
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this.tabs[this.activeIndex]?.session.clearSearch()
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}
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/** Ask for notification permission once, on a user gesture (H2/H4). */
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private maybeAskNotify(): void {
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if (this.notifyAsked) return
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this.notifyAsked = true
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if (typeof Notification !== 'undefined' && Notification.permission === 'default') {
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void Notification.requestPermission()
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}
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}
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/** Browser notification for a background tab needing approval. */
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private notify(entry: TabEntry): void {
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if (typeof Notification === 'undefined' || Notification.permission !== 'granted') return
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const title = this.displayTitle(entry, this.tabs.indexOf(entry))
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new Notification(`Claude needs you — ${title}`, { body: 'Waiting for approval' })
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}
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/* ── rendering ───────────────────────────────────────────────── */
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/** In-place update of one tab's classes/label/dot — never destroys the DOM. */
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private refreshTab(entry: TabEntry): void {
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const el = entry.el
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if (!el) return
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const idx = this.tabs.indexOf(entry)
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el.classList.toggle('active', idx === this.activeIndex)
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el.classList.toggle('unread', entry.hasActivity && idx !== this.activeIndex)
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const cs = entry.session.claudeStatus
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el.classList.toggle('claude-waiting', cs === 'waiting' && idx !== this.activeIndex)
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const title = this.displayTitle(entry, idx)
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el.title = title
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const dot = el.querySelector('.tab-dot')
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if (dot) dot.className = `tab-dot dot-${entry.session.status}`
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const label = el.querySelector('.tab-label')
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if (label) label.textContent = title
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const claude = el.querySelector('.tab-claude')
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if (claude) {
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claude.textContent =
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cs === 'working' ? '⚙' : cs === 'waiting' ? '⏳' : cs === 'idle' ? '✓' : ''
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}
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}
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/** Full rebuild — ONLY for structural changes (add/close/reorder/rename). */
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private rebuild(): void {
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this.tabBar.replaceChildren()
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this.tabs.forEach((entry, idx) => {
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const tabEl = document.createElement('div')
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entry.el = tabEl
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tabEl.className = 'tab'
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// Switch on pointerdown (fires before any drag; reliable with draggable, works on touch).
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tabEl.addEventListener('pointerdown', () => this.activate(idx))
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// Middle-click closes.
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tabEl.addEventListener('auxclick', (e) => {
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if (e.button === 1) {
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e.preventDefault()
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this.closeTab(idx)
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}
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})
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// Drag-to-reorder (disabled while renaming).
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if (idx !== this.editingIndex) {
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tabEl.draggable = true
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tabEl.addEventListener('dragstart', (e) => {
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this.dragIndex = idx
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e.dataTransfer?.setData('text/plain', String(idx))
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tabEl.classList.add('dragging')
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})
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tabEl.addEventListener('dragover', (e) => {
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e.preventDefault()
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tabEl.classList.add('drag-over')
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})
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tabEl.addEventListener('dragleave', () => tabEl.classList.remove('drag-over'))
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tabEl.addEventListener('drop', (e) => {
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e.preventDefault()
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tabEl.classList.remove('drag-over')
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this.moveTab(this.dragIndex, idx)
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})
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tabEl.addEventListener('dragend', () => {
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this.dragIndex = -1
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tabEl.classList.remove('dragging')
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})
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}
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const dot = document.createElement('span')
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dot.className = `tab-dot dot-${entry.session.status}`
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tabEl.appendChild(dot)
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if (idx === this.editingIndex) {
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const input = document.createElement('input')
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input.className = 'tab-rename'
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input.value = this.displayTitle(entry, idx)
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input.addEventListener('keydown', (e) => {
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if (e.key === 'Enter') this.commitRename(idx, input.value)
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else if (e.key === 'Escape') {
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this.editingIndex = -1
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this.rebuild()
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}
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e.stopPropagation()
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})
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input.addEventListener('blur', () => this.commitRename(idx, input.value))
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input.addEventListener('pointerdown', (e) => e.stopPropagation()) // don't re-activate
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tabEl.appendChild(input)
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requestAnimationFrame(() => {
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input.focus()
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input.select()
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})
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} else {
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const label = document.createElement('span')
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label.className = 'tab-label'
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label.textContent = this.displayTitle(entry, idx)
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label.addEventListener('dblclick', () => {
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this.editingIndex = idx
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this.rebuild()
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})
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tabEl.appendChild(label)
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const claude = document.createElement('span')
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claude.className = 'tab-claude'
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tabEl.appendChild(claude)
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const close = document.createElement('button')
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close.className = 'tab-close'
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close.textContent = '×'
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close.title = 'Close tab (the shell keeps running on the server)'
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close.setAttribute('aria-label', 'Close tab')
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close.addEventListener('pointerdown', (e) => e.stopPropagation())
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close.addEventListener('click', (e) => {
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e.stopPropagation()
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this.closeTab(idx)
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})
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tabEl.appendChild(close)
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}
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// Apply current active/unread state.
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this.refreshTab(entry)
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this.tabBar.appendChild(tabEl)
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})
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const add = document.createElement('button')
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add.className = 'tab-add'
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add.textContent = '+'
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add.title = 'New session'
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add.setAttribute('aria-label', 'New session')
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add.addEventListener('click', () => this.newTab())
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this.tabBar.appendChild(add)
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// Show/hide the launcher based on whether any tab is open.
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this.updateLauncher()
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}
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}
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