Merge pull request #268 from Ark0N/feat/mobile-shell-keyboard-262

feat(mobile): shell keyboard bar with a one-shot Ctrl modifier
This commit is contained in:
Ark0N
2026-08-10 04:33:22 +02:00
committed by GitHub
8 changed files with 1043 additions and 8 deletions
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/**
* @fileoverview Shell-specific mobile keyboard bar and its one-shot Ctrl
* modifier (issue #262).
*
* The bar is a `const` singleton in a non-module script, so it is loaded with
* `vm` against a small fake DOM (no jsdom in this repo), the same approach as
* test/path-picker-ui.test.ts. What matters here is the state machine: which
* layout a session gets, when the modifier arms, what byte a keystroke turns
* into, and every path that must disarm it. Behavior against a real shell
* (Ctrl+C reaching the PTY) is covered in test/mobile/keyboard.test.ts.
*/
import { readFileSync } from 'node:fs';
import { resolve } from 'node:path';
import vm from 'node:vm';
import { describe, expect, it, vi } from 'vitest';
const keyboardSource = readFileSync(resolve('src/web/public/keyboard-accessory.js'), 'utf8');
const terminalSource = readFileSync(resolve('src/web/public/terminal-ui.js'), 'utf8');
type TerminalInput = { isTerminalFocusOrMouseReport(data: string): boolean };
type TerminalModule = {
terminalInput: TerminalInput;
CodemanApp: { prototype: Record<string, (...args: never[]) => unknown> };
bar: Bar;
};
let terminalModule: TerminalModule | null = null;
/**
* terminal-ui.js in a vm, with the REAL accessory bar in the same script scope
* (it is a `const` singleton, so only a shared scope makes the bare
* `KeyboardAccessoryBar` reference in the CJK path resolve). Its IIFE only
* needs a window to hang `CodemanTerminalInput` on, but the rest of the file
* assigns to CodemanApp.prototype at top level, so constants.js + app.js load
* first — the same recipe as test/local-echo-codex-gating.test.ts.
*/
function loadTerminalModule(): TerminalModule {
if (terminalModule) return terminalModule;
const read = (file: string) => readFileSync(resolve(`src/web/public/${file}`), 'utf8');
const windowStub: Record<string, unknown> = { addEventListener: vi.fn(), removeEventListener: vi.fn() };
const context = vm.createContext({
console,
setInterval: vi.fn(),
clearInterval: vi.fn(),
setTimeout,
clearTimeout,
requestAnimationFrame: vi.fn(),
HTMLCanvasElement: class HTMLCanvasElement {},
WebSocket: { OPEN: 1 },
fetch: vi.fn(),
URLSearchParams,
document: { addEventListener: vi.fn(), documentElement: { dataset: {} }, getElementById: () => null },
localStorage: { length: 0, key: vi.fn(), getItem: vi.fn(), setItem: vi.fn(), removeItem: vi.fn() },
window: windowStub,
MobileDetection: { isTouchDevice: () => true, isHandheldDevice: () => false, getDeviceType: () => 'desktop' },
});
vm.runInContext(
`${read('constants.js')}\n${keyboardSource}\n${read('app.js')}\n${terminalSource}\n` +
`globalThis.__CodemanApp = CodemanApp; globalThis.__bar = KeyboardAccessoryBar;`,
context
);
const exported = context as unknown as { __CodemanApp: TerminalModule['CodemanApp']; __bar: Bar };
terminalModule = {
terminalInput: (windowStub as { CodemanTerminalInput?: TerminalInput }).CodemanTerminalInput!,
CodemanApp: exported.__CodemanApp,
bar: exported.__bar,
};
return terminalModule;
}
function loadTerminalInput(): TerminalInput {
return loadTerminalModule().terminalInput;
}
type FakeButton = {
dataset: { action: string };
classList: { has: Set<string>; toggle(name: string, on: boolean): void; contains(name: string): boolean };
attrs: Record<string, string>;
setAttribute(name: string, value: string): void;
};
function fakeButton(action: string): FakeButton {
const has = new Set<string>();
return {
dataset: { action },
classList: {
has,
toggle(name: string, on: boolean) {
if (on) has.add(name);
else has.delete(name);
},
contains: (name: string) => has.has(name),
},
attrs: {},
setAttribute(name: string, value: string) {
this.attrs[name] = value;
},
};
}
/** Fake bar element: tracks the button set parsed out of the assigned HTML. */
function fakeBarElement() {
let html = '';
let buttons = new Map<string, FakeButton>();
const classes = new Set<string>();
return {
className: '',
classList: {
add: (name: string) => classes.add(name),
remove: (name: string) => classes.delete(name),
contains: (name: string) => classes.has(name),
},
get innerHTML() {
return html;
},
set innerHTML(next: string) {
html = next;
buttons = new Map();
for (const match of next.matchAll(/data-action="([^"]+)"/g)) {
buttons.set(match[1], fakeButton(match[1]));
}
},
get actions() {
return [...buttons.keys()];
},
querySelector(selector: string) {
const match = /\[data-action="([^"]+)"\]/.exec(selector);
return match ? (buttons.get(match[1]) ?? null) : null;
},
addEventListener: vi.fn(),
};
}
type Bar = {
element: ReturnType<typeof fakeBarElement>;
_mode: string;
init(): void;
setMode(mode: string): void;
refreshForActiveSession(): void;
handleAction(action: string, btn?: unknown): void;
isCtrlArmed(): boolean;
toggleCtrl(): void;
clearCtrl(): void;
consumeCtrl(data: string): string;
ctrlByteFor(char: string): string | null;
hide(): void;
show(): void;
};
function loadBar(sessionMode = 'claude') {
const app = {
activeSessionId: 'session-1',
sessions: new Map<string, { mode: string }>([['session-1', { mode: sessionMode }]]),
terminal: { focus: vi.fn() },
};
const fetchMock = vi.fn(() => Promise.resolve({ ok: true, catch: () => {} }));
const barElement = fakeBarElement();
const context = vm.createContext({
app,
MobileDetection: { isTouchDevice: () => true },
URLSearchParams,
fetch: fetchMock,
document: {
createElement: () => barElement,
querySelector: () => ({ parentNode: { insertBefore: vi.fn() } }),
},
setTimeout: (fn: () => void) => {
fn();
return 1;
},
clearTimeout: vi.fn(),
});
vm.runInContext(`${keyboardSource}\nglobalThis.__bar = KeyboardAccessoryBar;`, context, {
filename: 'keyboard-accessory.js',
});
const bar = (context as unknown as { __bar: Bar }).__bar;
bar.init();
return { app, bar, barElement, fetchMock };
}
describe('ctrlByteFor: character to control byte', () => {
const { bar } = loadBar();
it.each([
['c', '\x03'], // interrupt
['d', '\x04'], // EOF
['z', '\x1a'], // suspend
['r', '\x12'], // reverse search
['l', '\x0c'], // clear
['a', '\x01'],
['e', '\x05'],
['w', '\x17'],
['u', '\x15'],
['k', '\x0b'],
])('maps %s to its control byte', (char, byte) => {
expect(bar.ctrlByteFor(char)).toBe(byte);
});
it('maps uppercase the same as lowercase (Ctrl+C == Ctrl+c)', () => {
expect(bar.ctrlByteFor('C')).toBe('\x03');
expect(bar.ctrlByteFor('D')).toBe('\x04');
});
it('maps the punctuation controls a terminal defines', () => {
expect(bar.ctrlByteFor('@')).toBe('\x00');
expect(bar.ctrlByteFor('[')).toBe('\x1b'); // Ctrl+[ is Escape
expect(bar.ctrlByteFor('\\')).toBe('\x1c');
expect(bar.ctrlByteFor(']')).toBe('\x1d');
expect(bar.ctrlByteFor('^')).toBe('\x1e');
expect(bar.ctrlByteFor('_')).toBe('\x1f');
expect(bar.ctrlByteFor(' ')).toBe('\x00'); // Ctrl+Space = NUL
expect(bar.ctrlByteFor('?')).toBe('\x7f'); // Ctrl+? = DEL
});
it('returns null for characters with no control equivalent', () => {
// A hardware keyboard types these straight through under Ctrl.
for (const char of ['1', '9', '.', ',', '/', '-', '=', 'é']) {
expect(bar.ctrlByteFor(char)).toBeNull();
}
expect(bar.ctrlByteFor('ab')).toBeNull();
expect(bar.ctrlByteFor('')).toBeNull();
});
});
describe('shell keyboard bar selection', () => {
it('gives a shell session the terminal bar', () => {
const { bar, barElement } = loadBar('shell');
bar.refreshForActiveSession();
expect(bar._mode).toBe('shell');
expect(barElement.actions).toEqual([
'ctrl',
'esc',
'tab',
'scroll-up',
'scroll-down',
'arrow-left',
'arrow-right',
'paste',
'dismiss',
]);
});
it.each(['claude', 'codex', 'opencode', 'gemini', 'antigravity'])('leaves a %s session on the agent bar', (mode) => {
const { bar, barElement } = loadBar(mode);
bar.refreshForActiveSession();
expect(bar._mode).toBe('simple');
expect(barElement.actions).toContain('init');
expect(barElement.actions).not.toContain('ctrl');
});
it('remembers the extended-bar preference across a shell session', () => {
const { app, bar, barElement } = loadBar('claude');
bar.setMode('extended');
expect(bar._mode).toBe('extended');
app.sessions.set('shell-1', { mode: 'shell' });
app.activeSessionId = 'shell-1';
bar.refreshForActiveSession();
expect(bar._mode).toBe('shell');
// Settings saved while the shell bar is up must not yank it away...
bar.setMode('extended');
expect(bar._mode).toBe('shell');
// ...and switching back to the agent session restores the user's choice.
app.activeSessionId = 'session-1';
bar.refreshForActiveSession();
expect(bar._mode).toBe('extended');
expect(barElement.actions).toContain('compact');
});
it('falls back to the agent bar with no active session', () => {
const { app, bar } = loadBar('shell');
app.activeSessionId = null as unknown as string;
bar.refreshForActiveSession();
expect(bar._mode).toBe('simple');
});
});
describe('one-shot Ctrl modifier', () => {
function shellBar() {
const loaded = loadBar('shell');
loaded.bar.refreshForActiveSession();
return loaded;
}
it('is disarmed until the Ctrl key is tapped', () => {
const { bar } = shellBar();
expect(bar.isCtrlArmed()).toBe(false);
expect(bar.consumeCtrl('c')).toBe('c');
});
it('arms visibly and rewrites the next character as its control byte', () => {
const { bar, barElement } = shellBar();
bar.handleAction('ctrl');
expect(bar.isCtrlArmed()).toBe(true);
const button = barElement.querySelector('[data-action="ctrl"]')!;
expect(button.classList.contains('armed')).toBe(true);
expect(button.attrs['aria-pressed']).toBe('true');
expect(bar.consumeCtrl('c')).toBe('\x03');
// One shot: spent, and the button says so.
expect(bar.isCtrlArmed()).toBe(false);
expect(button.classList.contains('armed')).toBe(false);
expect(button.attrs['aria-pressed']).toBe('false');
expect(bar.consumeCtrl('c')).toBe('c');
});
it('sends Ctrl+D for the next key too', () => {
const { bar } = shellBar();
bar.handleAction('ctrl');
expect(bar.consumeCtrl('d')).toBe('\x04');
});
it('cancels on a second tap of Ctrl', () => {
const { bar, barElement } = shellBar();
bar.handleAction('ctrl');
bar.handleAction('ctrl');
expect(bar.isCtrlArmed()).toBe(false);
expect(barElement.querySelector('[data-action="ctrl"]')!.classList.contains('armed')).toBe(false);
expect(bar.consumeCtrl('c')).toBe('c');
});
it('passes a character with no control byte through unchanged, spending the modifier', () => {
const { bar } = shellBar();
bar.handleAction('ctrl');
expect(bar.consumeCtrl('7')).toBe('7');
expect(bar.isCtrlArmed()).toBe(false);
});
it('spends the modifier on a paste instead of leaving it armed for the next keystroke', () => {
const { bar } = shellBar();
bar.handleAction('ctrl');
expect(bar.consumeCtrl('git status')).toBe('git status');
expect(bar.isCtrlArmed()).toBe(false);
});
it('is cancelled by any other accessory key', () => {
const { bar } = shellBar();
bar.handleAction('ctrl');
bar.handleAction('esc');
expect(bar.isCtrlArmed()).toBe(false);
});
it('is cancelled by a session switch', () => {
const { app, bar } = shellBar();
bar.handleAction('ctrl');
expect(bar.isCtrlArmed()).toBe(true);
app.sessions.set('shell-2', { mode: 'shell' });
app.activeSessionId = 'shell-2';
bar.refreshForActiveSession();
// Same layout, but the modifier must not survive into the next session.
expect(bar._mode).toBe('shell');
expect(bar.isCtrlArmed()).toBe(false);
});
it('is cancelled when the keyboard is dismissed', () => {
const { bar } = shellBar();
bar.handleAction('ctrl');
bar.hide();
expect(bar.isCtrlArmed()).toBe(false);
});
it('drops the armed state when the layout is swapped out from under it', () => {
const { app, bar } = shellBar();
bar.handleAction('ctrl');
app.sessions.set('agent-1', { mode: 'claude' });
app.activeSessionId = 'agent-1';
bar.refreshForActiveSession();
expect(bar._mode).toBe('simple');
expect(bar.isCtrlArmed()).toBe(false);
expect(bar.consumeCtrl('c')).toBe('c');
});
});
describe('terminal input wiring', () => {
it('applies the modifier in onData after the query-response filter and before the send paths', () => {
const hook = terminalSource.indexOf('KeyboardAccessoryBar.consumeCtrl(data)');
const queryFilter = terminalSource.indexOf('shouldSuppressTerminalQueryResponse(data)', hook - 4000);
const firstSend = terminalSource.indexOf('this._lastTerminalData', hook - 4000);
expect(hook).toBeGreaterThan(0);
// xterm answers DA/CPR queries through onData as well; letting one of those
// spend the modifier would silently eat the user's Ctrl.
expect(queryFilter).toBeGreaterThan(0);
expect(queryFilter).toBeLessThan(hook);
// Every send path (local echo, predictive echo, plain flush) reads `data`
// after this point, so the control byte reaches the PTY unchanged.
expect(firstSend).toBeGreaterThan(hook);
});
it('guards the hook so a page without the bar (desktop) still types normally', () => {
expect(terminalSource).toContain("typeof KeyboardAccessoryBar !== 'undefined'");
});
it('skips terminal-generated focus and mouse reports', () => {
// Pins the gate itself: without it the modifier is spent by the `\x1b[I`
// that the Ctrl button's own refocus emits (see the describe below).
expect(terminalSource).toContain('!window.CodemanTerminalInput?.isTerminalFocusOrMouseReport(data)');
});
});
describe('CodemanTerminalInput.isTerminalFocusOrMouseReport', () => {
const isReport = loadTerminalInput().isTerminalFocusOrMouseReport;
it.each([
['\x1b[I', 'focus in (DECSET 1004)'],
['\x1b[O', 'focus out (DECSET 1004)'],
['\x1b[<0;10;5M', 'SGR mouse press'],
['\x1b[<0;10;5m', 'SGR mouse release'],
['\x1b[<64;10;5M', 'SGR wheel up'],
['\x1b[M !!', 'legacy X10 mouse'],
])('classifies %j as terminal-generated (%s)', (data) => {
expect(isReport(data)).toBe(true);
});
it.each([
['c', 'a typed character'],
['\x03', 'a control byte'],
['\r', 'Enter'],
['\x1b', 'the Escape key'],
['\x1b[A', 'an arrow key'],
['\x1b[200~hi\x1b[201~', 'a bracketed paste'],
['\x1b[?1;2c', 'a DA reply'],
['I', 'the letter I'],
])('leaves %j alone (%s)', (data) => {
expect(isReport(data)).toBe(false);
});
});
describe('one-shot Ctrl vs terminal-generated reports', () => {
// The onData gate, as terminal-ui.js writes it. The wiring test above pins
// the real source; this proves the behavior the gate buys.
function feed(bar: Bar, data: string): string {
const isReport = loadTerminalInput().isTerminalFocusOrMouseReport;
return bar.isCtrlArmed() && !isReport(data) ? bar.consumeCtrl(data) : data;
}
function shellBar() {
const loaded = loadBar('shell');
loaded.bar.refreshForActiveSession();
return loaded;
}
it('survives a tap once an app in the pane turns mouse reporting on', () => {
const { bar } = shellBar();
// The live case: a shell session keeps the narrow scrollback strip, so mouse
// DECSETs reach the browser. Measured against a real shell with vim-style
// tracking on, one tap on the terminal spent the armed modifier silently.
bar.handleAction('ctrl');
expect(feed(bar, '\x1b[<0;10;5M')).toBe('\x1b[<0;10;5M');
expect(feed(bar, '\x1b[<0;10;5m')).toBe('\x1b[<0;10;5m');
expect(bar.isCtrlArmed()).toBe(true);
// ...so the character the user actually types is still the one modified.
expect(feed(bar, 'd')).toBe('\x04');
expect(bar.isCtrlArmed()).toBe(false);
});
it('survives a focus report, should one ever reach xterm', () => {
// Defense in depth: FOCUS_ESCAPE_FILTER (session.ts) strips `\x1b[?1004h`
// from every PTY read, so sendFocusMode never turns on today. If it did,
// the bar's own post-key refocus would emit `\x1b[I` and eat the modifier
// before the user typed a single character.
const { bar } = shellBar();
bar.handleAction('ctrl');
expect(feed(bar, '\x1b[I')).toBe('\x1b[I');
expect(bar.isCtrlArmed()).toBe(true);
expect(feed(bar, 'c')).toBe('\x03');
});
it('still spends the modifier on a paste, which is real input', () => {
const { bar } = shellBar();
bar.handleAction('ctrl');
expect(feed(bar, 'git status')).toBe('git status');
expect(bar.isCtrlArmed()).toBe(false);
});
});
describe('one-shot Ctrl through the CJK input field', () => {
// The CJK textarea swallows keystrokes before onData sees them, so the CJK
// send path needs the modifier applied too. These drive the REAL
// _handleCjkInput against the REAL bar, both loaded into one vm scope.
function cjkApp() {
const { CodemanApp, bar } = loadTerminalModule();
bar.clearCtrl();
const app = Object.create(CodemanApp.prototype) as {
activeSessionId: string;
_sendInputAsync: ReturnType<typeof vi.fn>;
_handleCjkInput(text: string): void;
};
app.activeSessionId = 'cjk-session';
app._sendInputAsync = vi.fn();
return { app, bar };
}
it('sends the control byte for a character typed into the CJK field', () => {
const { app, bar } = cjkApp();
bar.toggleCtrl();
app._handleCjkInput('c');
expect(app._sendInputAsync).toHaveBeenCalledWith('cjk-session', '\x03');
expect(bar.isCtrlArmed()).toBe(false);
});
it('leaves ordinary CJK input untouched when nothing is armed', () => {
const { app } = cjkApp();
app._handleCjkInput('你好');
expect(app._sendInputAsync).toHaveBeenCalledWith('cjk-session', '你好');
});
it('spends the modifier on a committed IME word instead of stranding it', () => {
// The gap this closes: with the field focused the modifier could neither
// fire nor be spent, so it survived to bite a later innocent keystroke.
const { app, bar } = cjkApp();
bar.toggleCtrl();
app._handleCjkInput('你好');
expect(app._sendInputAsync).toHaveBeenCalledWith('cjk-session', '你好');
expect(bar.isCtrlArmed()).toBe(false);
});
it('spends the modifier on Enter, like every other non-character key', () => {
const { app, bar } = cjkApp();
bar.toggleCtrl();
app._handleCjkInput('\r');
expect(app._sendInputAsync).toHaveBeenCalledWith('cjk-session', '\r');
expect(bar.isCtrlArmed()).toBe(false);
});
it('drops the input, and does not spend the modifier, with no active session', () => {
const { app, bar } = cjkApp();
(app as unknown as { activeSessionId: string | null }).activeSessionId = null;
bar.toggleCtrl();
app._handleCjkInput('c');
expect(app._sendInputAsync).not.toHaveBeenCalled();
expect(bar.isCtrlArmed()).toBe(true);
});
});
describe('armed styling survives the light-skin overrides', () => {
const mobileCss = readFileSync(resolve('src/web/public/mobile.css'), 'utf8');
it('excludes .armed from the light-skin .accessory-btn repaint', () => {
// That selector is (0,3,1): `:is()` takes the specificity of its most
// specific argument and the list holds `.btn-toolbar.btn-shell`. It
// therefore OUTRANKS the (0,3,0) armed rules in both stylesheets, and a
// bare `.accessory-btn` there paints the armed modifier back to a resting
// button on all four light skins (measured across every skin at 390px).
const lightSkinRule = mobileCss
.split('\n')
.find((line) => line.includes('[data-skin="paper-gray"]') && line.includes('.btn-voice-mobile,'));
expect(lightSkinRule).toBeDefined();
expect(lightSkinRule).toContain('.accessory-btn:not(.armed)');
});
it('keeps an armed rule in both stylesheets', () => {
// mobile.css hardcodes the phone palette, styles.css carries the
// skin-aware one for everything wider.
expect(mobileCss).toContain('.accessory-btn.accessory-btn-ctrl.armed');
expect(readFileSync(resolve('src/web/public/styles.css'), 'utf8')).toContain(
'.accessory-btn.accessory-btn-ctrl.armed'
);
});
});
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@@ -1048,6 +1048,183 @@ describe('Virtual Keyboard', () => {
});
});
// ── Shell keyboard bar + one-shot Ctrl (issue #262) ───────────────────
//
// The bar swaps layouts per session mode, and Ctrl is a one-shot modifier
// applied to the next character typed on the SYSTEM keyboard, which on a
// phone reaches the app as xterm onData text, not a key event. These drive
// the real xterm instance with page.keyboard.type() and assert on what would
// go out on the wire (_sendInputAsync), not on DOM state alone.
describe('Shell keyboard bar', () => {
let context: BrowserContext;
let page: Page;
beforeAll(async () => {
({ context, page } = await createDevicePage(REPRESENTATIVE_DEVICES['standard-phone'], BASE_URL, 'chromium'));
await page.waitForTimeout(WAIT.PAGE_SETTLE);
});
afterAll(async () => {
await context.close();
});
/** Point the app at a fake session of `mode` and re-resolve the bar. */
async function activateSession(mode: string, id = 'kb-shell-1'): Promise<void> {
await page.evaluate(`(function (id, mode) {
app.sessions.set(id, { id, name: id, status: 'idle', mode, workingDir: '/tmp' });
app.activeSessionId = id;
KeyboardAccessoryBar.show();
KeyboardAccessoryBar.refreshForActiveSession();
})('${id}', '${mode}')`);
}
/** Capture what the terminal would send, while typing on the real keyboard. */
async function typeAndCapture(text: string): Promise<string[]> {
await page.evaluate(`(function () {
window.__sent = [];
if (!app.__origSend) app.__origSend = app._sendInputAsync;
app._sendInputAsync = function (sessionId, input) { window.__sent.push(input); };
app.terminal.focus();
})()`);
await page.keyboard.type(text);
await page.waitForTimeout(200);
const sent = (await page.evaluate(`window.__sent`)) as string[];
await page.evaluate(`(function () { app._sendInputAsync = app.__origSend; })()`);
return sent;
}
async function tapCtrl(): Promise<void> {
await page.evaluate(`document.querySelector('.keyboard-accessory-bar [data-action="ctrl"]').click()`);
}
it('shows the terminal bar for shell sessions', async () => {
await activateSession('shell');
const actions = await page.evaluate(() =>
Array.from(document.querySelectorAll('.keyboard-accessory-bar [data-action]')).map(
(button) => (button as HTMLElement).dataset.action
)
);
expect(actions).toEqual([
'ctrl',
'esc',
'tab',
'scroll-up',
'scroll-down',
'arrow-left',
'arrow-right',
'paste',
'dismiss',
]);
});
it('keeps the command bar for agent sessions', async () => {
await activateSession('claude', 'kb-agent-1');
const actions = await page.evaluate(() =>
Array.from(document.querySelectorAll('.keyboard-accessory-bar [data-action]')).map(
(button) => (button as HTMLElement).dataset.action
)
);
expect(actions).toContain('init');
expect(actions).not.toContain('ctrl');
});
it('sends Ctrl+C for the next typed character and disarms', async () => {
await activateSession('shell');
await tapCtrl();
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(true);
expect(await typeAndCapture('c')).toEqual(['\x03']);
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(false);
// The very next keystroke is a literal c again.
expect(await typeAndCapture('c')).toEqual(['c']);
});
it('sends Ctrl+D for the next typed character', async () => {
await activateSession('shell');
await tapCtrl();
expect(await typeAndCapture('d')).toEqual(['\x04']);
});
it('survives a terminal tap while the pane has mouse reporting on', async () => {
// A shell session keeps the narrow scrollback strip, so mouse DECSETs
// reach the browser: run vim or htop and xterm starts reporting taps
// through onData as \x1b[<0;31;23M. Those arrive on the same channel as
// typed characters, so a hook that treats every chunk as "the next
// keystroke" spends Ctrl on a tap and the button looks dead. Verified
// against a real shell session before this guard existed.
await activateSession('shell');
await page.evaluate(`app.terminal.write('\\x1b[?1000h\\x1b[?1006h')`);
await page.waitForTimeout(150);
await tapCtrl();
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(true);
const box = await page.locator('.xterm-screen').first().boundingBox();
await page.touchscreen.tap(box!.x + box!.width / 2, box!.y + box!.height / 2);
await page.waitForTimeout(200);
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(true);
expect(await typeAndCapture('c')).toEqual(['\x03']);
await page.evaluate(`app.terminal.write('\\x1b[?1000l\\x1b[?1006l')`);
});
it('cancels on a second tap of Ctrl', async () => {
await activateSession('shell');
await tapCtrl();
await tapCtrl();
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(false);
expect(await typeAndCapture('c')).toEqual(['c']);
});
it('shows the armed state and keeps the terminal focused', async () => {
await activateSession('shell');
await tapCtrl();
const state = await page.evaluate(() => {
const button = document.querySelector('.keyboard-accessory-bar [data-action="ctrl"]') as HTMLElement;
const style = getComputedStyle(button);
return {
armed: button.classList.contains('armed'),
pressed: button.getAttribute('aria-pressed'),
background: style.backgroundColor,
focusedTerminal: document.activeElement === (app.terminal as { textarea: Element }).textarea,
};
});
expect(state.armed).toBe(true);
expect(state.pressed).toBe('true');
// Armed styling must actually land (three-class rule beating the skin
// overrides): an invisible modifier is worse than none.
expect(state.background).not.toBe('rgba(0, 0, 0, 0)');
expect(state.focusedTerminal).toBe(true);
});
it('drops the armed modifier when switching sessions', async () => {
await activateSession('shell');
await tapCtrl();
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(true);
await activateSession('shell', 'kb-shell-2');
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(false);
expect(await typeAndCapture('c')).toEqual(['c']);
});
it('drops the armed modifier when the keyboard is dismissed', async () => {
await activateSession('shell');
await tapCtrl();
await page.evaluate(`KeyboardAccessoryBar.hide()`);
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(false);
});
it('spends the modifier on another accessory key instead of the next keystroke', async () => {
await activateSession('shell');
await tapCtrl();
await page.evaluate(`document.querySelector('.keyboard-accessory-bar [data-action="esc"]').click()`);
expect(await page.evaluate(`KeyboardAccessoryBar.isCtrlArmed()`)).toBe(false);
expect(await typeAndCapture('c')).toEqual(['c']);
});
});
// ── Cross-device keyboard behavior ────────────────────────────────────
describe('Cross-device keyboard behavior', () => {