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fix(dashboard): use browser scrollback for chat wheel

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YuanHanzhong 2026-05-19 00:07:26 -07:00 • committed by Teknium
parent 0b89628e86
commit afffb8d9a5
3 changed files with 23 additions and 26 deletions
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33
web/src/pages/ChatPage.tsx
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@ -298,10 +298,9 @@ export default function ChatPage({ isActive = true }: { isActive?: boolean }) {
// is false; enabling it gives users a single-action selection
// path on top of the modifier-based bypass above.
rightClickSelectsWord: true,
// Single-scroll-system experiment:
// let the inner Hermes TUI own transcript history/scroll behavior.
// The outer browser xterm should act as a display/input bridge only.
scrollback: 0,
// Browser-embedded chat runs the TUI in inline mode. Keep transcript
// history in xterm.js so the browser wheel can scroll it directly.
scrollback: 5000,
theme: TERMINAL_THEME,
});
termRef.current = term;
@ -345,7 +344,7 @@ export default function ChatPage({ isActive = true }: { isActive?: boolean }) {
// original keydown event's activation. Log to aid debugging.
console.warn("[dashboard clipboard] OSC 52 write failed:", err.message);
});
} catch (e) {
} catch {
console.warn("[dashboard clipboard] malformed OSC 52 payload");
}
return true;
@ -404,34 +403,16 @@ export default function ChatPage({ isActive = true }: { isActive?: boolean }) {
fitRef.current = fit;
term.loadAddon(fit);
// Single-scroll-system experiment:
// keep browser xterm as a display/input bridge only, and let the inner
// Hermes TUI own transcript scrolling.
//
// In practice, the most reliable path here is NOT terminal mouse-wheel
// protocol emulation — that can vary by terminal mode and parser path.
// The inner TUI already handles keyboard-driven transcript scrolling
// correctly (`Shift+Up` / `Shift+Down`, `PageUp` / `PageDown`), so we
// translate browser wheel gestures into those known-good key sequences.
// Dashboard chat should scroll the browser-side transcript, not send
// mouse-wheel protocol bytes through the PTY.
term.attachCustomWheelEventHandler((ev) => {
if (wsRef.current?.readyState !== WebSocket.OPEN) {
return false;
}
const delta = ev.deltaY;
if (!delta) {
return false;
}
// Shift+Up / Shift+Down: the TUI maps these to line-by-line
// transcript scrolling, which feels much closer to wheel behavior
// than PageUp/PageDown's half-page jumps.
const step = Math.max(1, Math.round(Math.abs(delta) / 50));
const seq = delta > 0 ? "\x1b[1;2B" : "\x1b[1;2A";
for (let i = 0; i < step; i++) {
wsRef.current.send(seq);
}
term.scrollLines(delta > 0 ? step : -step);
ev.preventDefault();
ev.stopPropagation();