This PR is to
* Update the Material Design tokens to 5.0.0
* 4 color roles in **Light mode** have different default values
`onPrimaryContainer`: Primary10 -> Primary30
`onSecondaryContainer`: Secondary10 -> Secondary30
`onTertiaryContainer`: Tertiary10 -> Tertiary30
`onErrorContainer`: Error10 -> Error30

* new tokens added in list.json
* `md.comp.menu.list-item.*` tokens are deprecated and should be replaced by tokens in list.json and we've done the migration last year:)!(#122388)
fixes https://github.com/flutter/flutter/issues/152055
Disabling filtering in `DropdownMenu` at start and after a selection has been made, and re-enable it (if `widget.enableFilter` is true) after text input.
This way it doesn't hide all other options when there is an existing selection.
Note: currently this may crush due to issue https://github.com/flutter/flutter/issues/151878 . Which is not directly related to this PR
## Description
This PR makes the existing `InputDecoration.prefixIconConstraints` and `InputDecoration.suffixIconConstraints` configurable from an `InputDecorationTheme`.
## Related Issue
Related to https://github.com/flutter/flutter/issues/138691 (this is needed before providing a fix or a workaround for it).
## Tests
Update and split one existing test into two different tests.
Update the existing test related to debugFillDescription by adding all the non tested properties.
This PR is aimed at (1) reducing the private API surface of _MenuAnchorState to make migration into RawMenuAnchor simpler, and (2) fixing focus-related bugs.
Directional focus handling was moved from MenuAnchor (_MenuDirectionalFocusAction, _MenuNextFocusAction, and _MenuPreviousFocusAction) into SubmenuButton (_SubmenuDirectionalFocusAction). MenuAnchor now behaves similarly to a flat FocusScope, which makes it easier to customize. A future PR will ideally expose or remove the remaining internals (_lastItemFocusNode, _firstItemFocusNode, _isRoot, etc). All previous framework tests are passing, and additional tests were added for fixes (MenuAnchor tab traversal, reopened menus not being focusable), and to test MenuAnchor focus behavior separately from MenuBar.
However, [one example test](https://github.com/flutter/flutter/pull/150950/files#diff-a33fa01b59d280784e7c8ed6b704bd005cde95b7d3b649dc82fd58530061a09d) had to be changed. I'm not sure why the previous example test was working to begin with, as submenu buttons are supposed to open on focus, but this behavior was not observed in the original test.
Fixes https://github.com/flutter/flutter/issues/144381, https://github.com/flutter/flutter/issues/150334.
One added feature is the ability to move between top-level horizontal submenus if a horizontal movement is made on a vertical menu item that has no children in the movement direction. This behavior was observed on Google Docs, MacOS, and various other menu systems I encountered.
https://github.com/flutter/flutter/assets/59215665/04a42b8a-cc9e-4a50-9d0c-6f2d784cfc78
Add parameter to `showSearch`, which is passed to `_SearchPageRoute` to maintain the state of the SearchDelegate.
- fix#43582
_Just contributed this change to start the conversation on how the #43582 can be addressed. Have not added tests yet._
## Description
Adds defaults that use tokens to define default `iconSize` and `iconColor` values. Previously, the Material 3 token values for button icon sizes and colors were not being used as defaults when the `ButtonStyleButton.defaultStyleOf` function returned the default values.
Adds tests to make sure appropriate `ButtonStyle` fields are populated when defaultStyle is called on buttons.
Updated documentation for `defaultStyleOf` to indicated that not _all_ fields need to be non-null, since some fields make sense to be null (e.g. `fixedSize`) because they would otherwise override the behavior of other fields in the same `ButtonStyle`.
## Tests
- Added tests to make sure that the appropriate fields are non-null in the default button styles for each type of button.
Hopefully soon, [flutter.dev/go/dart-patterns](https://flutter.dev/go/dart-patterns) will have lots of good feedback; in the meantime, I'll focus refactoring efforts on uncontroversial things :)
Previously, I was under the impression that I could solve issue #143803 with [just 1 PR](https://github.com/flutter/flutter/pull/143804).
It turns out that I had overlooked quite a bit!
<br>
```dart
// before
if (chunkEvents != null) {
chunkEvents.listen((ImageChunkEvent event) {
reportImageChunkEvent(event);
},
);
}
// after
chunkEvents?.listen(reportImageChunkEvent);
```
## Description
This PR makes `DropdownButtonFormField` hint defaults to the provided inputDecoration hintText.
Because `DropDownButtonFormField` accepts both a `hint` parameter and a `decoration`parameter, one can expect `InputDecoration.hintText` to be valid.
Before this PR, when `InputDecoration.hintText` was specified, it is shown but the vertical position is wrong.
After this PR, when `InputDecoration.hintText` is specified, it is used as the default value for `DropDownButtonFormField.hint` and `DropDownButtonFormField.disabledHint`.
| Before | After |
|--------|--------|
|  |  |
## Related Issue
Fixes https://github.com/flutter/flutter/issues/111958.
## Tests
Adds 5 tests.
https://github.com/flutter/flutter/pull/151599 was reverted because it was a breaking change to g3
Will reland 151599 in 5 steps
1. Make changes with an additional parameter ( bool internalAddSemanticForOnTap = false)
2. Send regular CLs in google3 to pass internalAddSemanticForOnTap: true, and update the tests / text goldens accordingly.
3. Send a PR to flip the default value to true.
4. Send CLs internally to remove internalAddSemanticForOnTap: true.
5. Send another PR to remove the now-redundant internalAddSemanticForOnTap flag.
(<----This PR is step 1)
## Description
This adds `find.backButton()` in the Common Finders to allow finding different types of standard UI elements. It works by attaching a key made from an enum value in a new enum called `StandardComponentType` to all of the standard widgets that perform the associated function.
I also substituted the finder in several places where it is useful in tests.
This allows writing tests that want to find the "back" button without having to know exactly which icon the back button uses under what circumstances. To do it correctly is actually quite complicated, since there are several adaptations that occur (based on platform, and whether it is web or not).
## Tests
- Added tests.
This PR is to make preparations to make `CardTheme` conform to Flutter's conventions for component themes:
* Added a `CardThemeData` class which defines overrides for the defaults for `Card` properties.
* Added 2 `CardTheme` constructor parameters: `CardThemeData? data` and `Widget? child`. This is now the preferred way to configure a `CardTheme`:
```dart
CardTheme(
data: CardThemeData(color: xxx, elevation: xxx, ...),
child: Card(...)
)
```
These two properties are made nullable to not break existing apps which has customized `ThemeData.cardTheme`.
* Changed the type of theme defaults from `CardTheme` to `CardThemeData`.
TODO:
* Fix internal failures that may have breakages.
* Change the type of `ThemeData.cardTheme` from `CardTheme` to `CardThemeData`. This may cause breaking changes, a migration guide will be created.
Addresses the "theme normalization" sub project within https://github.com/flutter/flutter/issues/91772
Feat: Drag handle size can now be changed to any given size.
So, In previous behaviour drag handle size was not able to extends beyond 48x48. But some user might want to change it.
In current behaviour, drag handle size is default to same 48x48 but if drag handle size grows beyond that, we don't restrict it.
Fixes#149170
## Description
This PR attemps to clarify the `InputDecoration.collapsed` documentation by explaining that it is not meant to be use with helper, label, counter, icons, prefixes and suffixes.
It also adds some parameters that make sense for a collapsed decoration (`hintMaxLines`, `hintFadeDuration`, `constraints`).
Removing parameters that should not have been added (`floatingLabelBehavior` and `floatingLabelAlignment`) will be part of another PR as it will require deprecations.
## Related Issue
Fixes https://github.com/flutter/flutter/issues/61331
## Tests
Adds 3 tests.
Changes:
- Introduced `alignmentOffset` property to `DropdownMenu` to allow adjustment of menu alignment.
- Updated the `MenuAnchor` widget to utilize the new `alignmentOffset` property.
- Default value for `alignmentOffset` is `Offset.zero`, meaning no additional spacing by default.
Motivation:
- This PR closes#151524
- @nate-thegrate, please let me know if I need to make changes in order for this PR to be merged
The motivation behind this change is to provide developers with more control over the spacing between the `MenuAnchor` and `dropdownMenuEntries` in the `DropdownMenu` widget. This enhancement allows for better alignment and customization of the dropdown menu appearance.
| before | after |
| :---: | :---: |
| <img width="372" alt="Screenshot 2024-07-14 at 8 03 14â¯PM" src="https://github.com/user-attachments/assets/4a45b843-7fa4-44fd-843c-c7209c6f57ae"> | <img width="364" alt="Screenshot 2024-07-14 at 8 03 27â¯PM" src="https://github.com/user-attachments/assets/12e8b857-aefb-4aaf-a310-4a002abcbc2f"> |
Initially, it was suggested to use a `SizedBox` to introduce spacing. However, upon further examination of the source code, it was discovered that the `DropdownMenuEntries` are rendered on the screen via an `OverlayPortal`. This necessitated leveraging the existing `alignmentOffset` property within the `MenuAnchor` for a more seamless and effective alignment adjustment.
fixes https://github.com/flutter/flutter/issues/146414
---
I saw @abikko submitted a PR https://github.com/flutter/flutter/pull/146630, but it was not completed due to CLA and lack of test cases.
I am willing to complete this PR in combination with @abikko's code (I don't know if this is allowed)
This PR adds contorlAffinity to ListTileTheme so that [CheckboxListTile], [RadioListTile], [SwitchListTile], and [ExpansionTile] can read and use it
For example: If ListTileTheme in Theme sets contorlAffinity, then [CheckboxListTile] can directly use contorlAffinity in ListTileTheme. Of course, if contorlAffinity is also set in [CheckboxListTile], the property in [CheckboxListTile] will be used first.
Fix: Submenu anchor misaligned with child panel in web (Resolved#151081)
- The issue comes from different in calculating the position of the menu in web and mobile.
- The calculation is currently base on function `getPositionForChild()` inside `_MenuLayout` in `menu_anchor.dart`, which base on the `anchorRect`
- The calculation of `anchorRect` is from `upperLeft` and `bottomRight`
- `upperLeft` is result of `localToGlobal()` function, which take the `point` arguments to be the base line. Right now, `point` is refer to `Offset.zero`, but it should not be Offset.zero since we having `densityAdjustment`, which is different between web and mobile
- Change `point` from `Offset.zero` to `Offset(dx, -dy)` should fix the error. Use `dx` instead of `-dx` since `dx` already be recalculated refer to the above comment on `densityAdjustment`.
Before:

After:

Issue: https://github.com/flutter/flutter/issues/151081
Implement Comparable for the TimeOfDay class as discussed in #139098.
Also implements utility methods as `isBefore`, `isAfter` and `isAtSameTimeAs` for convenience and parity with `DateTime` from the dart sdk.
## Description
This re-enables the `SemanticsAction.focus` matchers so that they actually do something now instead of ignoring the action.
This was so that we could land the focus action changes without causing breakages in customer tests, and now that customer tests have been updated, we can land this PR turning it on again.
## Related Issues
- Fixes https://github.com/flutter/flutter/issues/149842
## Related PRs
- https://github.com/flutter/flutter/pull/149840
## Tests
- Updates semantics tests to actually look for the focus action.
I really like how patterns can be used for variable assignment and avoiding duplicated logic. (related: #150942)
```dart
// before
final GestureRecognizer? recognizer = info.recognizer;
if (recognizer is TapGestureRecognizer) {
if (recognizer.onTap != null) {
configuration.onTap = recognizer.onTap;
configuration.isLink = true;
}
} else if (recognizer is DoubleTapGestureRecognizer) {
if (recognizer.onDoubleTap != null) {
configuration.onTap = recognizer.onDoubleTap;
configuration.isLink = true;
}
}
// after
switch (info.recognizer) {
case TapGestureRecognizer(:final VoidCallback? onTap):
case DoubleTapGestureRecognizer(onDoubleTap: final VoidCallback? onTap):
if (onTap != null) {
configuration.onTap = onTap;
configuration.isLink = true;
}
}
```