dialog [nfc]: Wrap showErrorDialog's return value #970
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chrisbobbe
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Oct 5, 2024
lib/widgets/dialog.dart
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| final Future<void> _closed; | ||
| /// Resolves when the dialog is closed. | ||
| Future<void> get closed => _closed; |
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lib/widgets/lightbox.dart
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| // Wait until the dialog is closed | ||
| await dialog.closed; |
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Happily, I think the comment is now redundant and can be swept away :)
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Thanks for the review! Updated the PR. |
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LGTM, thanks! Over to Greg. |
As a result, showErrorDialog no longer returns a Future that can be mistakenly awaited. The wrapped return value offers clarity on how the Future is supposed to be used. There is no user visible change because existing callers (other than lightbox's) that wait for its return value are all asynchronous handlers for UI elements like buttons, and waits unnecessarily. See also discussion zulip#937 (comment). Signed-off-by: Zixuan James Li <[email protected]>
Unlike ScaffoldFeatureController which inspired it, this class doesn't offer a way to control the dialog, so it's not really a "controller"; just call it DialogStatus. A private final field with a public getter (of the same type) is equivalent to just a public final field: nothing can set it, and any library can get it. Also generalize the description a bit: we currently use this only for AlertDialog, but it'd apply equally well for any dialog box.
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Thanks to you both! Looks good; merging, with some tweaks to the interface on top: |
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As a result, showErrorDialog no longer returns a Future that can be mistakenly awaited. The wrapped return value offers clarity on how the Future is supposed to be used.
There is no user visible change because existing callers (other than lightbox's) that wait for its return value are all asynchronous handlers for UI elements like buttons, and waits unnecessarily.
See also discussion
#937 (comment).