Found while verifying Auto Copy in a browser: a plain left click in a
claude/codex/gemini pane sent a synthetic SGR mouse report into the PTY
whether or not the program in that pane had ever enabled mouse tracking.
When the pane holds a plain shell (the CLI exited, or a shell was started
inside a session of that mode) readline prints the report as literal text
and it garbles the next line typed:
$ [<0;88;20Mecho hello
bash: 0: No such file or directory
The cause is that the browser could not know. The full strip
(isAltScreenStripMode) removes the mouse DECSETs from the stream, so
xterm's modes.mouseTrackingMode is permanently 'none' for those modes and
_sendSyntheticSgrTap() hand-encodes reports to stand in for xterm's own
encoder. With no state to consult it had to do that on every click.
What the strip removes, the server now remembers.
_recordStrippedMouseMode() records each sequence as it is stripped,
toState() publishes it as cliMouseTracking, and the browser's
_shouldReportMouseToCli() (renamed from _sessionUsesServerMouseStrip)
requires it at all three report sites: the desktop click, the touchend
tap, and the mobile tap classifier.
Details that are easy to get wrong:
* Only the tracking modes count (1000/1001/1002/1003). 1005/1006 select
an encoding and 1007 is alt-scroll; a CLI that picks SGR encoding
without turning tracking on is not asking about clicks, and counting
those would put the stray reports straight back.
* Modes are held in a Set, so a TUI disabling a mode it never enabled
cannot clear the ones that are really on.
* The change broadcasts immediately instead of through
broadcastSessionStateDebounced: the flag flips when a dialog opens, and
the user can click that dialog well inside the 500ms debounce window.
* It fails toward silence. After a server restart the flag is false until
the CLI re-emits its DECSET, which tmux does at client attach.
Verified against a live claude 2.x session: the CLI holds a tracking mode
on continuously, so its clicks are still reported byte for byte as
before, while a bash prompt in the same stripped mode now reports
nothing and types cleanly. The flag also propagates live over SSE in both
directions, checked by toggling ?1002h/?1002l from inside the pane.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
An agent's numbered list wraps its URL, and the link opened a PREFIX of it:
1. https://github.com/users/someone/packages/container/p
ackage/thing
opened `…/container/p`. The provider already stitched hard wraps — Ink emits a real
newline, so nothing is flagged `isWrapped` and a row that fills the last column is
taken as continuing — but it joined the row texts VERBATIM, and the continuation
carries the list's own three-space indent. That whitespace lands in the middle of
the token, which is exactly where the URL pattern stops. Flush-left wrapped URLs
(Claude Code's own `/login`) worked, which is why this survived.
The touch-selection helpers had the shallower version of the same bug: they walked
`isWrapped` only, so `Line` grabbed the single row on screen rather than the
logical line, and a long-press on a wrapped token selected only its visible half.
So the reconstruction now lives in ONE place, `terminalLogicalLine` in
constants.js, and both consumers use it — the link provider matching patterns over
its text and the selection helpers measuring words and lines with it. A link that
spans a wrap and a `Line` that stops at the screen edge were the same bug twice.
The helper drops the leading whitespace of a HARD continuation (the program's
indent) and keeps that of a SOFT one (the emulator inserts nothing, so it is real
content), records the dropped width per segment so the offset↔cell mapping stays
exact in both directions, trims only the final row so earlier offsets stay aligned
to cells, and keeps the 12-row bound that stops a screenful of full-width output
from being re-scanned on every hover.
⚠️ Selection spans are computed in CELLS, not text offsets: an xterm selection is
one contiguous run, so a token spanning a hard wrap also covers the indent cells
between its halves. A run that skipped them cannot be expressed, and would not
match what is highlighted.
Tests: `test/terminal-logical-line.test.ts` (8 cases: the indent drop, resolving
from either row, both mapping directions, soft continuations kept verbatim, no
over-reach past a short row, the row bound, final-row trimming, a missing row) and
5 in `terminal-touch-tap.test.ts` (the whole URL from either row, a token selected
across the wrap, `Line` spanning both rows, no reach into the next line). Removing
either half of the fix reds 5 and 8 of them respectively.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
There was no way to copy terminal text from a phone at all, and three layers
ruled it out independently: `user-select: none` across the whole terminal subtree
on touch devices (taps are cursor gestures there, so the OS callout had to go),
the WebGL renderer drawing glyphs as pixels with only the accessibility tree
behind them, and xterm's own selection being a mouse DRAG while the touch path
dispatches a zero-movement mousedown/mouseup pair — a click. `copyTerminal()`
exists but is wired to no button and calls `navigator.clipboard` directly, which
is undefined on the plain-HTTP LAN install the installer offers.
So the gesture drives xterm's `select()` directly: public API, renderer-
independent, and the highlight is drawn by xterm itself. Long-press is free real
estate — tap and swipe are taken, long-press and double-tap are used by nothing.
- **Long-press** (350ms, finger still within the shared tap slop) selects the
run of non-whitespace under the finger. Whitespace is the only delimiter on
purpose: every punctuation-aware word rule cuts a path, URL or hash in half,
which is what you came to copy.
- **Drag** while held extends the selection; touchmove diverts from scrolling.
- **Tap** while the bar is up extends it too. That is the ergonomic core:
picking up a 4px handle with a fingertip is a coin flip, tapping the other end
is not. Dismissal stays explicit (✕ or Copy), so no tap is spent leaving a mode
the user is still using.
- **Copy** goes through the existing `copyTerminalSelection()`, so it inherits
the execCommand fallback that is the only route that works on plain HTTP.
- **Line** takes the whole logical line, wraps included, trailing pad trimmed.
Three guards are what make the gesture survive contact with a real phone, and
each fixes a symptom measured on Android Chrome:
1. **The compat mouse pair after touchend.** xterm focuses from its screen-element
mousedown and SelectionService resets the model there, so lifting your finger
popped the keyboard and dissolved the selection in one go. The tap path already
had a guard for those events; the selection path simply never armed it. Armed
now, and the touchend is `preventDefault`ed so the synthesis is stopped at the
source (that listener is no longer passive).
2. **The platform's own long-press.** Android Chrome runs its handling at ~500ms
and focuses the nearest editable element — xterm's helper textarea, parked at
the cursor — which no touch handler can preventDefault because it never sees an
event. A focus guard blurs the terminal input for the duration of the gesture,
whatever focused it, bounded by a self-expiring deadline so a stuck flag can
never leave the keyboard unreachable. `contextmenu` is suppressed for the same
window, and the threshold sits at 350ms so it lands clear of the platform's.
3. **Copy re-focusing the terminal.** `copyTerminalSelection()` ends with
`terminal.focus()`, which is right on a desktop and wrong on a phone: the
keyboard covers what was just copied with nothing waiting to be typed.
The bar is built in JS because index.html is read once at server start, and its
styles live in styles.css rather than mobile.css because the gesture is
touch-driven, not width-driven — a touch tablet in landscape gets the gesture and
would otherwise have no bar to copy from.
12 tests in `terminal-touch-tap.test.ts` cover the word rule, forward and
backward extension, cross-row selection, Line, tap-to-extend, the copy path, and
each of the three guards including the focus guard's expiry.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
On a phone no link was openable, on either surface, for two unrelated reasons.
**Terminal.** xterm resolves the link under the pointer on `mousemove` and
activates it on `mouseup` over its SCREEN element. A touch tap delivers neither:
`touch-action: none` on the terminal subtree plus touchstart's preventDefault for
a 'content' tap suppress the browser's compatibility mouse events,
`_installMobileTapMouseGuard` drops the trusted ones that still arrive inside the
450ms tap window, and the synthetic mousedown/mouseup pair dispatched for mouse
REPORTING goes to the `.xterm` root — an ancestor of the node the linkifier
listens on, so it cannot reach it — and carries no mousemove either way. Every
URL and file path in the terminal was therefore inert on phones and tablets,
Claude Code's own `/login` URL included.
The tap path now activates the link itself, through the SAME provider that feeds
the hover linkifier (`_terminalLinkAtPoint`), so a tap and a desktop click can
never disagree about what is a link or where it ends — containment mirrors
xterm's own `_linkAtPosition`. It runs synchronously inside the touchend handler,
which is what keeps the user gesture that lets `window.open` past the popup
blocker, and before any mouse report, exactly as `_handleDesktopTerminalClick`
already skips the SGR tap for a hovered link.
Two kinds of row keep their existing meaning: the caret's logical line, where a
tap places the cursor and a URL the user typed must stay editable, and TUI-owned
rows, where a numbered choice or an expandable readback is answering a dialog and
routinely carries the very path the tap would otherwise open. The caret line is
the boundary rather than the tap intent, because a plain shell classifies EVERY
tap as 'input' and gating on that would leave every URL in shell output inert.
**Chat.** `marked` emits a bare `<a href>` and the markdown sanitizer's allowlist
carries no `target`, so a tap in the response viewer navigated the current tab
away: on a phone that unloads the whole dashboard — SSE, terminal buffers, unsent
composer text — and there is no middle-click or open-in-new-tab affordance to
work around it. `_renderMarkdown` now decorates anchors in the template pass it
already makes for code blocks. That pass runs AFTER sanitizing, so it is the only
source of both attributes: an agent-authored `target`/`rel` is already stripped,
and `rel="noopener noreferrer"` is set on the same element in the same breath, so
no page Codeman opens gets a `window.opener` handle back. Fragment links stay
in-page; mailto:/tel: are left to the OS rather than stranding an empty tab.
Tests: 10 cases in `terminal-touch-tap.test.ts` (URL, file path, log path,
scrollback, no-double-report, composer, shell mode, dialog row, no provider) and
a new `response-viewer-external-links.test.ts` driving the shipped marked +
DOMPurify + app.js. 7 of them fail without the fix.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Release 1.16.6: phone overview started/idle stamps, plus fixes for the
selection-dialog keyboard lockout, the accessory bar arrows bypassing the
local-echo overlay, and recovered sessions being restamped as newly created
on every server restart.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Every terminal tap re-focuses the hidden textarea, so once the on-screen keyboard
is open the only way to close it is the accessory bar's dismiss chevron. Tapping
the transcript to get the screen back is the obvious gesture and it did nothing.
A tap on INERT content with the keyboard already up now dismisses it. Nothing
else claims that gesture: an inert row has no action to trigger, so by that point
the tap has already done its only other job (the mouse report).
Scoped to 'content' ON PURPOSE. The prompt row ('input') keeps
focus-then-position, so a second tap there still places the caret — that is real
capability and trading it away would be a worse deal than the bug. A separate
test pins it rather than leaving it to the reader.
Actionable rows are unchanged: readbacks, "esc to interrupt" status rows and menu
selections still blur via _isActionableMobileTerminalTap, which runs first.
`keeps the hidden keyboard input focused after an inert Claude transcript tap`
asserted the OLD behaviour and is renamed and inverted, since revising that
behaviour is the point of this change. Its setup already focused the terminal
before tapping, so it was always exercising the second-tap case.
test/terminal-touch-tap.test.ts: 28 tests. The two new ones fail on master —
`closes the keyboard on a second tap of INERT transcript content` behaviourally,
by asserting blur where master re-focuses.
test/mobile/keyboard.test.ts: 51 tests, 5 failed | 46 passed — the same five
pre-existing failures as master, untouched here.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Addresses the review on #244.
BLOCKING (item 1). selectSession() ends with scrollToLastNonEmptyLine(), which
parks the viewport above the bottom for any session taller than the screen, so
after a tab switch every tap classified as 'history' — touchstart ran
preventDefault() + blur, and touchend's early return skipped focus. Both routes
to focus closed on one gesture, the same mechanism as #173.
Suppressing the mouse REPORT while scrolled up is right and is kept; suppressing
FOCUS is not. touchstart now only preventDefaults 'content' taps (a scrolled-up
viewport sends nothing, so there is no compatibility click worth cancelling), and
the 'history' branch focuses instead of blurring.
Verified against the maintainer's own test, which was already on master and red:
`keeps the terminal input focusable after a tab switch parks the viewport
off-bottom` fails without this change and passes with it.
Item 2: dropped both `terminal-action-pending` guards. The class exists nowhere
in the repo, so both branches were permanently false and the comment promised
coverage that did not exist.
Item 3: removed the `Working` literals. Live claude 2.1.226 prints
"Cooked for 2m 6s" with a different bullet and a randomised verb, so they were
dead code. The status row is matched by its affordance ("esc to interrupt")
instead, which is what makes it actionable. The affordance regex is also
tightened to require a key or gesture name, so prose like "click here to open
the file" no longer dismisses the keyboard.
Item 4: removed _shouldForwardTouchScrollToApp and its test. It was never called,
and wiring it as written would have restricted forwarding to claude only,
dropping gemini from the path #205 established — a behaviour change this PR has
no reason to make.
Smaller items: the touchstart classification is cached and reused for the
touchend of the same gesture (keyed on exact coordinates, so a moved finger
re-classifies), removing two of the three full-viewport scans per gesture; the
duplicated touchLastX assignment is gone; and the no-touch bail-out returns null
rather than claiming 'history'.
test/mobile/keyboard.test.ts: 51 tests, 5 failed | 46 passed — the same 5
pre-existing failures as master, unchanged.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
DodgyBadger reported a completely dead wheel in codex tabs (#227 comment)
while the scrollbar drag worked, and the [scroll] line confirmed the
branch: forward-sgr with 967 rows of healthy local scrollback unused.
Measured against codex-cli 0.147.0 in a bare tmux: codex never enables
mouse tracking (mouse_any_flag=0), runs an inline viewport
(alternate_on=0) and pushes its transcript into the terminal's own
scrollback (history_size grows), and SGR wheel reports written to its
pane change nothing at all. Hand-encoded SGR taps are no-ops too, so
they stay (harmless), which means click-to-position is merely
unavailable there rather than damaging.
_shouldForwardWheelToApp now returns true for claude >= 2.1.187 and
nothing else; codex falls to the local-scrollback path like
shell/gemini/opencode, which is the same history the scrollbar drag was
already reaching. The claude-only PageUp fallback is untouched.
Verified in Chromium against a live codex session on an isolated
instance: routing logs local-scrollback, the viewport moves 39 -> 4 and
zero bytes go to the PTY.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Touch drags and flick momentum on forwarding-capable sessions (codex,
claude >= 2.1.187) now go to the CLI as coalesced SGR wheel reports via
the shared _forwardScrollToApp helper, exactly like the desktop wheel:
snap the viewport home first, then encode. Before this, every phone or
tablet swipe scrolled the local buffer of stale repaint frames and
dragged the CLI's pinned input box off the screen (the mobile half of
issue #205). The _shouldForwardWheelToApp gate is shared, so the
local-scrollback opt-out setting and the CLI version gate apply to touch
exactly as they do to the wheel; shell and other local modes keep the
existing local touch scrolling and the scroll-to-top history re-pull.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Reported against the beta: scrolling up in a Claude session drags the prompt
box and status line up the screen along with everything else, and only once
the local buffer hits its top does the CLI's own history start moving.
_shouldForwardWheelToApp() gated forwarding on the viewport being at the buffer
bottom, so that leaving the bottom handed the wheel back to local scrollback and
both histories stayed reachable. Two things make that the wrong default:
- A repaint-mode CLI keeps no terminal scrollback of its own (tmux reports
history_size=0 for a Claude pane), so xterm's buffer holds only Codeman's
REPLAYED repaint frames. Scrolling those locally moves the CLI's pinned
furniture and shows stale frames underneath.
- scrollToLastNonEmptyLine() parks the viewport `rows - 2` above the last
non-empty row, so any session with trailing blank rows was left off-bottom
and every later wheel event went local without the user ever scrolling.
Forward unconditionally for the verified modes instead, and snap the viewport
back to the bottom before encoding the report (SGR coordinates address the live
screen, and forwarding while the user stares at stale scrollback looks dead).
Shift+wheel and the "Wheel scrolls local history" opt-out still reach local
scrollback.
Verified against a real Claude 2.1.223 session: wheel-up scrolls its transcript
back 48 lines (rows showing 85-92 -> 37-44) while the input box, separator and
status line stay fixed at the bottom.
Deterministic claude --version probe seeds cliVersion so wheel-forwarding
to Claude's transcript engages (banner scrape was unreliable on 2.1.187+
and resumed sessions). Shift+wheel reads the dominant axis so a trackpad's
horizontal Shift-scroll reaches local scrollback. New per-device
"Wheel Scrolls Local History" opt-out. Wheel reports use a fire-and-forget
send path so they no longer flicker the pending-bytes indicator.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- _shouldForwardWheelToApp: claude sessions forward wheel to the TUI only
when the banner-parsed cliVersion is known AND >= 2.1.187 (older/unknown
Claude Code captures wheel as select-menu navigation → keep local
scrollLines); new dependency-free _cliVersionAtLeast semver-ish compare
- gemini excluded from wheel forwarding entirely (TUI wheel behavior
unverified); codex keeps forwarding (verified); taps/clicks still
forwarded for all strip modes
- link double-fire: registerFilePathLinkProvider links now track hover
state via ILink hover/leave callbacks (_linkHovered) and
_handleDesktopTerminalClick bails while a link is hovered, so a link
click no longer also sends a synthetic SGR press/release to the TUI
- help modal: document Shift+Wheel (scroll local history when mouse
passthrough is active)
- tests: version gate (2.1.186/unknown/garbage no forward, 2.1.187+
forwards), codex/gemini split, link-hover click suppression
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Desktop click-to-position-cursor died under the server's mouse-DECSET strip
(same root cause as the mobile touchend tap regression): xterm's native mouse
encoder only emits SGR while mouseTrackingMode is ON, but the server strips the
enabling DECSETs from claude/codex/gemini output. Hand-encode the report for
plain left-clicks (_handleDesktopTerminalClick), skipping every click that
already means something else (synthetic/compat, modified, double/triple,
drag-selection, off-grid, xterm encoder live).
Also widen forwarding to the wheel: Claude Code 2.1.187+ scrolls its own
transcript on SGR wheel reports and no longer captures wheel as select-menu
navigation (verified against 2.1.202), so forward the wheel to the TUI for
strip-mode sessions at the buffer bottom (40ms-coalesced to avoid a tmux
send-keys storm). Shift+wheel and any scrolled-up viewport stay on xterm's
local scrollback. Guard synthetic taps/clicks on viewport-at-bottom so a
scrolled-up report can't hit-test the wrong row.
Tests: 12 cases in test/terminal-touch-tap.test.ts. Verified E2E via Playwright
against the live instance (wheel up/down forward, Shift+wheel local, click).
v1.1.7 (3172bef, arrived via the master merge) strips mouse-tracking DECSET
sequences from claude/codex/gemini output so the wheel keeps scrolling
scrollback. Side effect: the browser xterm's mouseTrackingMode is permanently
'none' for those sessions, and the mobile touchend tap branch gates its
synthetic click on exactly that mode — so tap-to-position-cursor silently died.
Fix: when tracking reads 'none' but the session mode is one the server strips
(claude/codex/gemini — the PTY-side TUI still has tracking ON), encode the SGR
press+release report directly from the touch point and send it to the PTY,
bypassing xterm's mouse encoder. No DOM click is dispatched, so xterm's local
selection cannot trigger either.
Tests: 3 new cases in test/terminal-touch-tap.test.ts (SGR encoding, grid
clamping, shell-mode exclusion); verified E2E via Playwright iPhone emulation
against both a stripped-stream instance and the production bundle.
DodgyBadger