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Follow up of #174421

Migrate some files from MaterialState to WidgetState. This PR only focus on WidgetState for a subset of files.

  • This minimizes conflicts and reduces the size of the PR for easier reviews and follow up
  • I'll work on the other elements of packages/flutter/lib/src/material/material_state.dart into other PRs

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@github-actions github-actions bot added framework flutter/packages/flutter repository. See also f: labels. f: material design flutter/packages/flutter/material repository. d: api docs Issues with https://api.flutter.dev/ labels Aug 27, 2025
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Code Review

This pull request continues the migration from MaterialState to WidgetState across various files. The changes are mostly straightforward replacements. I've found a critical issue in checkbox.dart where state sets are being mutated incorrectly, which could lead to unexpected behavior. I've also suggested a naming improvement in material_state_mixin.dart for better consistency with the migration. Overall, good progress on this large-scale refactoring.

/// [isFocused], etc, are available for each [WidgetState] value.
@protected
Set<MaterialState> materialStates = <MaterialState>{};
Set<WidgetState> materialStates = <WidgetState>{};
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medium

For consistency with the migration to WidgetState, consider renaming this field to widgetStates and the associated methods (updateMaterialState, setMaterialState, etc.) to use WidgetState in their names (e.g., updateWidgetState). This would make the mixin's API clearer and more consistent with the rest of the framework's migration. This would require updating consumers of this mixin, such as RawMaterialButton, within this PR.

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That would be a breaking change, right? Or do we prefer keep using MaterialState here?

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I vote we keep the materialState here. If we want to change this, we should create WidgetStateMixin and deprecate this class

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Noted for the property materialStates.

To confirm, you're suggesting to revert the changes of this file and use the type MaterialState instead of WidgetState, right?

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We can change the Type to WidgetState which is not a breaking change, but we should keep the property name in tack.

It doesn't worth it to break this class just to update the property name.

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Ok, thank you for the clarification, it sounds like this PR is good to go then

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LGTM

@ValentinVignal ValentinVignal force-pushed the flutter/migrate-to-widget-state/2 branch from 7084ffb to 58b86c9 Compare August 28, 2025 02:16
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import 'checkbox_theme.dart';
import 'list_tile.dart';
import 'list_tile_theme.dart';
import 'material_state.dart';
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Nice that we can totally remove the dependency in some cases.

@ValentinVignal ValentinVignal added the autosubmit Merge PR when tree becomes green via auto submit App label Aug 30, 2025
@auto-submit auto-submit bot added this pull request to the merge queue Aug 30, 2025
@ValentinVignal ValentinVignal mentioned this pull request Aug 30, 2025
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Merged via the queue into flutter:master with commit 04d91b1 Aug 30, 2025
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Follow up of #174486

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [ ] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
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mboetger pushed a commit to mboetger/flutter that referenced this pull request Sep 18, 2025
Follow up of flutter#174421

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
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above.
- [x] I updated/added relevant documentation (doc comments with `///`).
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Follow up of flutter#174486

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


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- [x] I read and followed the [Flutter Style Guide], including [Features
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Follow up of flutter#174421

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


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Follow up of flutter#174421

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


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there for submitting PRs.
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responsibilities.
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Jaineel-Mamtora pushed a commit to Jaineel-Mamtora/flutter_forked that referenced this pull request Sep 24, 2025
Follow up of flutter#174486

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [ ] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 12, 2025
lucaantonelli pushed a commit to lucaantonelli/flutter that referenced this pull request Nov 21, 2025
Follow up of flutter#174421

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


## Pre-launch Checklist

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there for submitting PRs.
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we expect every widget to implement].
- [x] I signed the [CLA].
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above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
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lucaantonelli pushed a commit to lucaantonelli/flutter that referenced this pull request Nov 21, 2025
Follow up of flutter#174486

Migrate some files from `MaterialState` to `WidgetState`. This PR only
focus on `WidgetState` for a subset of files.
- This minimizes conflicts and reduces the size of the PR for easier
reviews and follow up
- I'll work on the other elements of
`packages/flutter/lib/src/material/material_state.dart` into other PRs


## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [ ] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

**Note**: The Flutter team is currently trialing the use of [Gemini Code
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Comments from the `gemini-code-assist` bot should not be taken as
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[Features we expect every widget to implement]:
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[Discord]:
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