Multiline TextInput key handling: add check for first responder #2215
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
performKeyEquivalent is [documented](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/EventOverview/EventArchitecture/EventArchitecture.html#//apple_ref/doc/uid/10000060i-CH3-SW10) to be called even if a view isn't first responder (this is for example how "Enter" binds to the default button on a dialog, for example -- the default button doesn't need to be focused to respond to Enter), but since we override performKeyEquivalent to properly support certain keyboard shortcuts (like noted in #1867), the previous assumption on the actual use of performKeyEquivalent no longer holds -- it's *only* for keystrokes sent in focused state, so add that check.
Saadnajmi
approved these changes
Oct 8, 2024
This was referenced Oct 8, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary:
Consider a hypothetical situation where a multiline TextInput handles (by dequeueing from the event queue) Cmd+Enter. If the focus is on another control that also handles Cmd+Enter, then hitting Cmd+Enter will not reach this other control -- in fact it will perform the action for the former TextInput, as if it were focused!
performKeyEquivalent is documented to be called even if a view isn't first responder (this is for example how "Enter" binds to the default button on a dialog -- the default button doesn't need to be focused to respond to Enter), but since we override performKeyEquivalent to properly support certain keyboard shortcuts (like noted in #1867), the previous assumption on the actual use of performKeyEquivalent no longer holds -- it's only intended for keystrokes sent in focused state, so add that check.
Test Plan:
Manually tested affected scenario for correct behavior.