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iOS Text Input suggestions no longer send as if they were commited #52458

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AdamChlupacek
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Summary:

This pull requests fixes behaviour of TextInput where it was setting the suggested text as if it were typed by a user. Fixes #52453

Changelog:

[IOS] [FIXED] - Fix TextInput onChange includes suggested text.

Test Plan:

Following snack: https://snack.expo.dev/@adchlupacek/ios-suggested-text-gets-sends-as-input
Will only output the actually typed text, not suggested.

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@NickGerleman
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NickGerleman commented Jul 7, 2025

Jumping back a bit, do we no what call in this case invokes textInputDidChange? There is some custom logic in RCTBackedTextInputDelegateAdapter.mm that I wonder if might trigger here when it doesn't need to.

It would be great if we could ignore these updates, with provisional text entirely, instead of trying to work around them everywhere.

} else {
return RCTIsAttributedStringEffectivelySame(
newText, oldText, _originalTypingAttributes, static_cast<const TextInputProps &>(*_props).textAttributes);
newText, _backedTextInputView.attributedText, _originalTypingAttributes, static_cast<const TextInputProps &>(*_props).textAttributes);
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Why are we sometimes comparing to the full string, vs string without marker?

@AdamChlupacek
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Thank you for the review. I think you are right, I will have a look if there is any way we could ignore the updates. In my testing I noticed that the on change can be fired multiple times in succession with the same value, which would be nice if we could avoid.

I will have another pass at this trying to get as close to the source of the event as possible.

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Successfully merging this pull request may close these issues.

[iOS] text inputs take the suggested text as if it was already written by the user.
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