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Mitigate a typing delay regression in Safari browsers #2195

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Merged
merged 1 commit into from
Jun 27, 2025
Merged

Mitigate a typing delay regression in Safari browsers #2195

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7 changes: 6 additions & 1 deletion compose/ui/ui/src/webCommonW3C/kotlin/androidx/compose/ui/platform/BackingDomInput.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,12 @@ internal class BackingDomInput(
}

fun updateHtmlInputBox(left: Float, top: Float, width: Float, height: Float) {
setBackingInputBox(left, top, width, height)
// we coerce the width to at least 1px, to mitigate the typing lags in mobile Safari:
// https://youtrack.jetbrains.com/issue/CMP-8373/Web-Mobile.-TextField.-Typing-input-delay
// Apparently when the width is 0px and the selection index is large enough (big text length),
// the lags become more noticeable.
// I assume it has something to do with text layout. Read more in the comments of the linked issue.
setBackingInputBox(left, top, width.coerceAtLeast(1f), height)
}

fun updateState(textFieldValue: TextFieldValue) {
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