6 Commits

Include renames

Author	SHA1	Message	Date
Rounak DattaandClaude Opus 5	e1e7dc5bd8	fix(terminal): Ark0N's read of the #464 geometry work ... Five items, two of which he could only see by running it, plus six smaller ones. Taking the two blockers first, because both were wrong in ways the existing tests could not catch. **Adopting the PTY's rows put the CLI's input line off-screen.** A phone that took a desktop's 43 rows into a viewport with room for 18 painted an `.xterm-screen` far taller than its container; xterm's own viewport then had nothing to scroll, so the bottom of the frame sat below the container with no gesture able to reach it. Output visible, typing invisible, for as long as the desktop kept the claim hot. `reconcilePtyGeometry` adopts COLUMNS ONLY now: width is the axis Ink's wrap and `eraseLines` arithmetic depend on, and keeping the local row count keeps the composer at the bottom of a viewport that scrolls. Measured at his geometry — a 360x300 container against a 198x43 pane now keeps 13 rows, takes 198 columns, paints 202px into a 210px container, and the input line is inside the box. **`capture-geometry-retry.browser.test.ts` failed, and CI could not see it** because the file is in `BROWSER_TEST_GLOBS`. Its premise WAS the clamp — `getTerminalDimensions()` floored while `fitAddon.fit()` did not — which this work removes at the source, so it can never hold again at any viewport. The case survives on its own terms: a pane already drawing at the requested size must not be replayed. Its premise is now the #464 invariant itself, that the floored report and the terminal agree, which is a stronger guard because the clamp coming back fails it here rather than silently restoring the replay loop. The helper docblock that repeated the old premise is corrected too. **A session with no pane reported 120x40 and the client adopted it.** `resize()` writes `_ptyCols`/`_ptyRows` only when `ptyProcess` is set and nothing seeds them from the spawn geometry, so a dead-pane session still held the constructor defaults — clicking that tab resized the browser terminal to 120x40 and, on anything narrower, claimed another device owned the pane when none existed. `Session.ptyGeometry` returns null without a pane, the HTTP route answers `{}` and the socket sends no frame at all. The raw `ptyCols`/`ptyRows` getters are deleted rather than left available to be misused again. **The 40-column floor clipped the pane with nothing able to reach it.** The affordance keyed on a PTY mismatch, and the floor produces no mismatch — xterm and the PTY agree throughout, the terminal is simply wider than the box. It keys on what does not FIT now, MEASURED (`.xterm-screen` against the container, on the next frame, because the screen takes its width with the render) rather than derived from cell arithmetic. Measured at 360px: font 24 applies 40 columns and paints 560px, and all 200px of the overhang is reachable. `.pty-oversized` is renamed `.term-overflows-x`, because after this the old name describes only one of the two causes. **"Scroll sideways" did not work on touch for the sessions it targets.** `touch-action: pan-x` is cancelled before it starts by the `preventDefault()` `touchstart` calls on every 'content' tap. The terminal's own touchmove handler pans the container now, with the axis locked once per gesture so a diagonal cannot pan and scroll at once, and the CSS grants no `touch-action` at all — handing the browser a pan AS WELL would move the pane twice for one finger on the taps where that preventDefault does not run. Measured under real touch dispatch: a 140px swipe reaches `scrollLeft` 140 where it reached 0 before, the buffer does not move with it, and a vertical swipe still scrolls the scrollback. Three defects in the above, found while checking it rather than by being told: - `canPanHorizontally` first tested `scrollWidth > clientWidth` alone, which is true of a container that is not a scroller — a sideways swipe would have locked the axis, done nothing, AND suppressed the vertical scroll it should have been. Gated on the class as well. - The notice advised scrolling sideways whenever the PTY was wider, including when it still fitted and nothing scrolled. It is gated on measured overflow, and on a comparison against the width this container WOULD request rather than the one it currently holds — once adopted those are equal, so the second question answers itself false while the condition is still true. - `_syncTerminalOverflowAffordance` could throw out of `document.getElementById` before reaching its try block. It runs off every geometry change, so a cosmetic affordance could have taken the resize down with it. The smaller items: - `docs/architecture-invariants.md` no longer explains the equality guard as a clamp signature; it records what the clamp used to do and why it cannot any more. Edited by hand — that file is outside the Prettier glob, and letting Prettier near it rewrote eleven unrelated emphasis markers. - `throttledResize`'s HTTP fallback reads the reply. It is the path where a declined resize is least likely to be noticed, because no socket means no `{"t":"zc"}` frame either. - The changeset covers the whole release: the geometry work, the queued replay clear, the renderer watchdog, the body-covering fetch deadline, the WebSocket output-gap reconcile, the build-generated service-worker precache and per-build cache key, and the crash-trail hygiene. - `@xterm/headless` is declared in the root devDependencies instead of being reached through workspace hoisting. - The output-gap marker is cleared after any response arrives, not only when the capture was non-empty: a server that answers with an empty capture HAS reconciled us, and leaving the marker set refetched on every reconnect. - `e587d845`'s message claimed a test asserted the failed-load copy against the built asset. It did not — that assertion lived in a probe deleted with the other scratch scripts, so the claim was false when it was written. There is a real test now, and it reads the source rather than `dist/`, because `dist/` is not committed and a test that skips when it is absent would pass for the wrong reason in CI. `Session.ptyGeometry` gets behavioural coverage against the real class in `session-resize-arbitration.test.ts` rather than a source guard, including the contrast — a pane that does exist still reports, and still follows a resize — so "always null" would fail it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-09-22 18:53:46 +05:30
Michael GrundbergandClaude Opus 5	95dc6fe944	fix(terminal): remember a geometry replay that did not converge ... `resizeRetry` caps the recursion inside one select and says nothing about the next one, so a pane this browser cannot size reported the same mismatch on every select and bought the same failed repair each time: two fetches per tab switch for the life of the page, measured as a running count of 2, 4, 6 across three selects. That is the case this branch describes as happening every time rather than occasionally, a phone whose resize `Session.resize` declines while a desktop claim is live, and it is not the only one — any pane Codeman cannot size lands there, including one a second tmux client is also holding. Each wasted pass costs another `capture-pane`, which is `execSync` and blocks the server's event loop, plus a reset and chunked rewrite, a discarded snapshot and cache entry, and a dropped and reopened WebSocket. `_geometryRetryUseless` mirrors the existing `_fullHistoryRepullUseless`: a retry pass whose frame still does not fit adds the session, geometry that fits removes it, and the replay gate consults it. The proof has to come from a retry pass rather than a first one, because the retry ran at the size that stuck and the pane ignored it. Clearing on a fitting frame is what stops a pane that becomes sizeable again, once the desktop tab closes or its claim goes idle, from staying permanently unrepaired. The race case never reaches the latch, since it converges on its first attempt. The new browser case walks all of that: three selects reading 2, 3, 4 instead of 2, 4, 6, then a fitting frame, then a mismatch diagnosed afresh. Without the gate it fails on the second switch with `expected 4 to be 3`. Rebased onto master, which has moved to 1.30.0 and taken #436. The one conflict was `config/test-suites.ts`, where both branches appended a glob to `BROWSER_TEST_GLOBS`; both are kept. Everything else merged clean, #436's own changes to the same buffer-load path included. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-09-19 10:56:58 +02:00
Michael GrundbergandClaude Opus 5	383f834704	fix(terminal): flush unsent local echo before the geometry replay ... On a touch device the characters the user has typed live only in the local-echo overlay until Enter; they have never reached the PTY. The replay re-enters `selectSession` with `forceReload` on the session that is still active, and that branch nulled `activeSessionId` before `_cleanupPreviousSession` ran. The flush there is guarded on a session it can still see, so it was skipped, and the unconditional `_localEchoOverlay.clear()` that follows took the characters with it. Measured in chromium against the previous head: typing into the overlay and then making the call the replay makes left `pendingText` empty with nothing crossing into the delivery layer on either transport. The flush moves into `_flushLocalEchoTo(sessionId)`, called from both `_cleanupPreviousSession` and the `forceReload` branch before it nulls the id. The session is a parameter because the two callers mean different ones: cleanup flushes to the tab being left, the branch to the tab being reloaded. This was reachable before this branch, through the one gesture that already takes the `forceReload` path on an active session. What is new is that nothing the user does triggers it. The replay fires on its own the moment a tab switch finishes, which is exactly when someone typing into a still-loading terminal has text in the overlay, and on a phone beside an active desktop tab that is every tab switch. A seventh browser case pins it: it forces the overlay on, since headless chromium reports no touch support and the case would otherwise pass vacuously, asserts the typed characters really are sitting unsent, then triggers the replay and asserts they reached the session. Without the fix it fails with nothing delivered at all. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-09-19 10:44:35 +02:00
Michael GrundbergandClaude Opus 5	e0d4477edc	fix(terminal): keep the geometry replay to the pass that can converge ... Three follow-ups to the source gate, each one measured rather than reasoned. A pane already drawing at the size the client just requested is left alone. The replay runs at `dimsAfterLoad`, so it can only change what is on screen if the pane was drawing at some other size; when the reported geometry already IS that size, the second pass captures the identical frame and pays a full reload to do it, including a visible re-flash, a dropped and reopened WebSocket and a deleted xterm snapshot. That equality is the signature of a clamp rather than a race: `getTerminalDimensions()` floors at 40x10 while `fitAddon.fit()` does not, so a terminal narrower than 40 columns or shorter than 10 rows reports a pane permanently bigger than itself and replayed on every tab switch without ever converging. A race never produces the equality, since its premise is that the pane was still at the size it was asked to leave. The declined-resize case does not produce it either, so that one still costs the single capped attempt and needs the pane-ownership question this does not touch. The full-history re-arm is unreachable and now says so. A pass that consumed the flag sent `full=1`, and the route answers `full=1` with `mux-full-history` or `history`, never `mux-visible`, so the source gate already rules out every such pass. The line stays for the invariant, but its comment no longer reads as if a page load retries, and the suite pins that it does not. The response no longer reports geometry for a body that carries no capture. The full-history path writes `capturedGeometry` from the cursor query and then returns '' for a pane holding nothing visible, which drops the source to `history` with the geometry already recorded: a `full=1` request whose capture reported 100x50 and returned nothing answered `source: "history"` with both fields set. Nothing acted on it, because the client ignores geometry on any other source, but the field said a frame had been drawn at a size when none had. The browser stub now derives `source` from the request the way the route does, rather than answering `full=1` with `mux-visible`, which the route cannot produce. Each case reaches a visible-frame response the way production does, by not being the first select of the page. Three cases pin the new behaviour and each fails without its guard: the clamp case sees two fetches instead of one, the scope case and the full-history case both see a replay the gate forbids, and the width case sees one fetch instead of two. The changeset now describes the change from 1.29.x rather than the difference between the two commits on this branch. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-09-19 10:44:35 +02:00
Michael GrundbergandClaude Opus 5	5cfb98fb8b	fix(terminal): compare capture geometry only on a visible-frame response ... Only a visible-frame capture positions its rows absolutely, so only that frame can be damaged by a terminal of the wrong size. A `full=1` body is linear scrollback closed by a relative cursor move, which is relative precisely so the browser's row count need not match the pane's, and a `history` body is the byte stream, which carries no row alignment to protect. The geometry comparison ran on all three, so it fired most often on the one response it cannot help: `_fullHistoryLoaded` is empty on the first select of every non-shell session per page, and a session whose pane a desktop tab holds too tall to ever fit then paid a second whole-scrollback capture, reset and replay on every page load and every first tab switch. `framePositionsRowsAbsolutely` gates both the captured-geometry comparison and `sizeMovedUnderLoad`. A size that moved under a byte-stream or scrollback replay is healed by xterm's own reflow plus the SIGWINCH the trailing `sendResize` already sends. A pane WIDER than the terminal damages the same frame a second way, so `captureCols` is now compared rather than only logged. `formatPaneSnapshot` paints each row out to the pane's own width, so a narrower browser wraps every painted row, and the wrap on the last one scrolls the whole frame up by a row. The terminal response no longer falls back to `session.ptyCols`/`ptyRows` when the capture reported no geometry. The cursor query is what produces the absolute addressing in the first place, so a capture that lost it returned a raw frame that was never positioned, and a byte-history response was never positioned either. Naming the session's own PTY size there described a frame that does not exist and invited a repair for damage that is not present. `_ptyCols` is also written only by `resize()` while the PTY is spawned at the size queried from tmux, so it can be wrong on its own terms. Both fields are now absent instead, and the `Session` getters added for that fallback go with it. Two browser cases cover the new behaviour and each fails without its fix: a `mux-full-history` response with both dimensions mismatched asserts one fetch (two without the gate), and a `mux-visible` response wider than the terminal but short enough to fit asserts two (one without the width comparison). Corrects a claim in the comment above `capturedGeometry` in tmux-manager.ts. Both replay paths do not address rows absolutely; the full-history one ends in a relative move, which is the whole reason the gate is right. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-09-19 10:44:35 +02:00
Michael GrundbergandClaude Opus 5	3edf9aae2f	fix(terminal): replay a pane capture at the geometry it was taken at ... A visible-frame capture repaints each row at an absolute position, counting up to the pane's height. A terminal shorter than that clamps every address past its own height onto its last line. The overflow rows then overwrite one another, and the rows underneath are lost. Replaying a real 50-row capture into a 30-row terminal rendered 28 lines of a 45-line command and drew the frame twice. Nothing in the response said what height the frame was built for, so the client could not detect this. A capture now reports the geometry it was really taken at through `capturedGeometry` on `PaneCaptureOptions`, and the terminal response carries it as `captureCols` and `captureRows`. When the captured pane is taller than the terminal, or the size that produced the capture did not survive the load, `selectSession` replays once at the size that stuck. `resizeRetry` caps that at one attempt, so two competing fits cannot trade replays forever. The retry re-arms the full-history flag only when the pass that ran had consumed it. A tab switch takes the bounded tail, so its retry takes the tail too: clearing the flag unconditionally would upgrade that switch into a fresh scrollback capture the user never asked for, which the route's own comments put at tens of megabytes. What this repairs is a capture that won a race against the resize meant to precede it. It does not repair a capture whose pane was too tall because `Session.resize` declined the resize outright, which it does for a small viewport while a desktop viewport's size claim is live. The retry re-sends the same declined resize and captures the same pane, and `resizeRetry` then stops it. Repairing that means changing who owns the pane size, which is a policy question this does not touch. The reported geometry still helps there, because the client can see the mismatch at all rather than being blind to it. Follows #395, #396 and #397, which fixed the other ways the replayed frame and the terminal could disagree. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-09-19 10:44:35 +02:00