BitSquare/Codeman
2
0
Fork 0
mirror of https://github.com/Ark0N/Codeman.git synced 2026-10-05 15:09:42 +02:00
Code Issues Packages Projects Releases Wiki Activity

fix(mobile): only arm the viewport settle on a real keyboard transition

Browse Source 
A visualViewport resize event without a pending show/hide transition now
only pushes a pending settle back (_deferViewportSettle) instead of arming
fit + PTY-resize work of its own. Keyboard detection can miss a
fine-grained OS animation entirely (each step under 150px, with the
baseline chasing the animation down), while MobileDetection's own listener
still shrinks --app-height, so the per-event settle fitted xterm against a
mid-animation container with no keyboard CSS compensation and resized the
PTY to transient dims. The resulting SIGWINCH thrash (58 -> 10 -> 50 rows)
duplicated prompts and left tmux dot filler in the transcript on keyboard
close. Reproduced with a faked visualViewport driving the real handler;
master is unaffected because it never resized the PTY from this path.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Codeman maintainer
2026-08-08 12:06:08 +02:00
parent 0a1439b1e9
commit 1f164bc8d2
2 changed files with 72 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/web/public/mobile-handlers.js
+26 -2
View File
@@ -215,6 +215,7 @@ const KeyboardHandler = {
initialViewportHeight: 0,
_viewportSettleTimer: null,
_settleScrollToBottom: false,
_settlePending: false,
/** Initialize keyboard handling */
init() {
@@ -284,6 +285,7 @@ const KeyboardHandler = {
this._viewportSettleTimer = null;
}
this._settleScrollToBottom = false;
this._settlePending = false;
},
/** Handle viewport resize (keyboard show/hide) */
@@ -321,7 +323,7 @@ const KeyboardHandler = {
}
this.updateLayoutForKeyboard();
this._scheduleViewportSettle();
this._deferViewportSettle();
this.lastViewportHeight = currentHeight;
},
@@ -446,12 +448,34 @@ const KeyboardHandler = {
if (typeof app !== 'undefined') app.relayoutMobileSubagentWindows();
},
/** Coalesce the keyboard animation into one final xterm reflow and PTY resize. */
/**
* Coalesce the keyboard animation into one final xterm reflow and PTY resize.
* Only a real show/hide transition arms the settle work; ongoing viewport
* resize events merely push a pending settle back (_deferViewportSettle).
* A viewport change that never crosses the show/hide thresholds must not
* refit: keyboard detection can miss a fine-grained OS animation entirely
* (each step under 150px, with the baseline chasing the animation), and the
* container is then mid-animation with no keyboard CSS compensation, so a
* fit against it resizes the PTY to transient dims and the SIGWINCH thrash
* garbles the transcript.
*/
_scheduleViewportSettle({ scrollToBottom = false } = {}) {
this._settleScrollToBottom = this._settleScrollToBottom || scrollToBottom;
this._settlePending = true;
this._armViewportSettleTimer();
},
/** Push a pending settle back while the viewport is still animating; no-op otherwise. */
_deferViewportSettle() {
if (!this._settlePending) return;
this._armViewportSettleTimer();
},
_armViewportSettleTimer() {
if (this._viewportSettleTimer) clearTimeout(this._viewportSettleTimer);
this._viewportSettleTimer = setTimeout(() => {
this._viewportSettleTimer = null;
this._settlePending = false;
const shouldScrollToBottom = this._settleScrollToBottom;
this._settleScrollToBottom = false;