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fix: improve iOS terminal scroll speed #12

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fix: improve iOS terminal scroll speed #12

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20 changes: 20 additions & 0 deletions app/tabs/sessions/terminal/Terminal.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -262,6 +262,7 @@ const TerminalComponent = forwardRef<TerminalHandle, TerminalProps>(
.xterm-viewport {
width: 100% !important;
height: 100% !important;
-webkit-overflow-scrolling: touch;
}

.xterm {
Expand Down Expand Up @@ -593,6 +594,25 @@ const TerminalComponent = forwardRef<TerminalHandle, TerminalProps>(
setTimeout(handleResize, 100);
});

// Touch-scroll acceleration for iOS WebView
(function() {
var scrollTouchY = null;
var lineH = terminal._core._renderService.dimensions.css.cell.height || ${baseFontSize * 1.2};
terminalElement.addEventListener('touchstart', function(e) {
if (e.touches.length === 1) scrollTouchY = e.touches[0].clientY;
}, { passive: true, capture: true });
terminalElement.addEventListener('touchmove', function(e) {
if (scrollTouchY === null || e.touches.length !== 1) return;
var dy = scrollTouchY - e.touches[0].clientY;
scrollTouchY = e.touches[0].clientY;
var lines = Math.trunc(dy / lineH);
if (lines !== 0) terminal.scrollLines(lines);
}, { passive: true, capture: true });
terminalElement.addEventListener('touchend', function() {
scrollTouchY = null;
}, { passive: true, capture: true });
})();

terminal.clear();
terminal.reset();
terminal.write('\\x1b[2J\\x1b[H');
Expand Down