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fix: reset touch state when iPad Safari loses focus #7134

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Merged
jtydhr88 merged 2 commits into from
Dec 4, 2025
Merged

fix: reset touch state when iPad Safari loses focus #7134

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5093faa
fix: reset touch state when iPad Safari loses focus
jtydhr88 Dec 3, 2025
a9d30d8
code improve
jtydhr88 Dec 4, 2025
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22 changes: 21 additions & 1 deletion src/extensions/core/simpleTouchSupport.ts
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
import { LGraphCanvas, LiteGraph } from '@/lib/litegraph/src/litegraph'

import { app } from '../../scripts/app'
import { app } from '@/scripts/app'

let touchZooming = false
let touchCount = 0
Expand Down Expand Up @@ -82,6 +82,26 @@ app.registerExtension({
}
)

const resetTouchState = () => {
touchCount = 0
touchZooming = false
touchTime = null
lastTouch = null
lastScale = null
touchDist = null
}

// Reset touch state when page loses visibility (e.g., switching apps on iPad)
// This prevents touchCount from getting stuck when touchend events are missed
document.addEventListener('visibilitychange', () => {
if (document.hidden) {
resetTouchState()
}
})

// Also handle touchcancel which fires when touch is interrupted
app.canvasEl.parentElement?.addEventListener('touchcancel', resetTouchState)

app.canvasEl.parentElement?.addEventListener(
'touchmove',
(e) => {
Expand Down