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feat(Tooltip): replace the height parameter with constraints (#163314)

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Introduce a new `constraints` parameter, which constrains the size of
the tooltip's message and deprecate the now obsolete `height` parameter.
Do the same for the theme data, while also making some minor changes to
the docs to clear up some misconceptions about which properties apply to
the tooltip's message and which to the tooltip's child.

To make the transition from `height` to `constraints` as easy as
possible for our users, introduce fix data to do this replacement
automatically in the IDE.

Closes: #163313

## 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].
- [x] 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].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
This commit is contained in:
Kamil Szczęk 2025-03-17 18:00:05 +01:00 committed by GitHub
parent 51bf72afa2
commit 9d2b6da8e5
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11 changed files with 420 additions and 13 deletions
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2
examples/api/lib/material/tooltip/tooltip.1.dart
View File

@ -34,7 +34,7 @@ class TooltipSample extends StatelessWidget {
borderRadius: BorderRadius.circular(25),
gradient: const LinearGradient(colors: <Color>[Colors.amber, Colors.red]),
),
height: 50,
constraints: const BoxConstraints(minWidth: 250),
padding: const EdgeInsets.all(8.0),
preferBelow: true,
textStyle: const TextStyle(fontSize: 24),

83
packages/flutter/lib/fix_data/fix_material/fix_tooltip.yaml Normal file
View File

@ -0,0 +1,83 @@
# Copyright 2014 The Flutter Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# For details regarding the *Flutter Fix* feature, see https://flutter.dev/to/flutter-fix
# Please add new fixes to the top of the file, separated by one blank line
# from other fixes. In a comment, include a link to the PR where the change
# requiring the fix was made.
# Every fix must be tested. See the flutter/packages/flutter/test_fixes/README.md
# file for instructions on testing these data driven fixes.
# For documentation about this file format, see https://dart.dev/go/data-driven-fixes.
# * Fixes in this file are for the Tooltip widget from the Material library. *
version: 1
transforms:
# Changes made in https://github.com/flutter/flutter/pull/163314
- title: "Migrate to 'constraints'"
date: 2025-02-14
element:
uris: ["package:flutter/material.dart"]
constructor: ""
inClass: "Tooltip"
oneOf:
- if: "height == 'null'"
changes:
- kind: "removeParameter"
name: "height"
- if: "constraints == '' && height != ''"
changes:
- kind: "addParameter"
index: 2
name: "constraints"
style: "optional_named"
argumentValue:
expression: "{% BoxConstraints %}(minHeight: {% height %})"
requiredIf: "height != '' && height != 'null'"
- kind: "removeParameter"
name: "height"
- if: "constraints == 'null' && height != ''"
changes:
- kind: "removeParameter"
name: "constraints"
- kind: "addParameter"
index: 2
name: "constraints"
style: "optional_named"
argumentValue:
expression: "{% BoxConstraints %}(minHeight: {% height %})"
requiredIf: "height != '' && height != 'null'"
- kind: "removeParameter"
name: "height"
- if: "constraints != '' && height != ''"
changes:
- kind: "removeParameter"
name: "height"
variables:
constraints:
kind: "fragment"
value: "arguments[constraints]"
height:
kind: "fragment"
value: "arguments[height]"
BoxConstraints:
kind: "import"
uris: ["package:flutter/rendering.dart"]
name: "BoxConstraints"
# Changes made in https://github.com/flutter/flutter/pull/163314
- title: "Migrate to 'constraints'"
date: 2025-02-14
element:
uris: ["package:flutter/material.dart"]
getter: "height"
inClass: "Tooltip"
changes:
- kind: "rename"
newName: "constraints?.minHeight"
# Before adding a new fix: read instructions at the top of this file.

135
packages/flutter/lib/fix_data/fix_material/fix_tooltip_theme_data.yaml Normal file
View File

@ -0,0 +1,135 @@
# Copyright 2014 The Flutter Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# For details regarding the *Flutter Fix* feature, see https://flutter.dev/to/flutter-fix
# Please add new fixes to the top of the file, separated by one blank line
# from other fixes. In a comment, include a link to the PR where the change
# requiring the fix was made.
# Every fix must be tested. See the flutter/packages/flutter/test_fixes/README.md
# file for instructions on testing these data driven fixes.
# For documentation about this file format, see https://dart.dev/go/data-driven-fixes.
# * Fixes in this file are for the TooltipThemeData class from the Material library. *
version: 1
transforms:
# Changes made in https://github.com/flutter/flutter/pull/163314
- title: "Migrate to 'constraints'"
date: 2025-02-14
element:
uris: ["package:flutter/material.dart"]
constructor: ""
inClass: "TooltipThemeData"
oneOf:
- if: "height == 'null'"
changes:
- kind: "removeParameter"
name: "height"
- if: "constraints == '' && height != ''"
changes:
- kind: "addParameter"
index: 0
name: "constraints"
style: "optional_named"
argumentValue:
expression: "{% BoxConstraints %}(minHeight: {% height %})"
requiredIf: "height != '' && height != 'null'"
- kind: "removeParameter"
name: "height"
- if: "constraints == 'null' && height != ''"
changes:
- kind: "removeParameter"
name: "constraints"
- kind: "addParameter"
index: 0
name: "constraints"
style: "optional_named"
argumentValue:
expression: "{% BoxConstraints %}(minHeight: {% height %})"
requiredIf: "height != '' && height != 'null'"
- kind: "removeParameter"
name: "height"
- if: "constraints != '' && height != ''"
changes:
- kind: "removeParameter"
name: "height"
variables:
constraints:
kind: "fragment"
value: "arguments[constraints]"
height:
kind: "fragment"
value: "arguments[height]"
BoxConstraints:
kind: "import"
uris: ["package:flutter/rendering.dart"]
name: "BoxConstraints"
# Changes made in https://github.com/flutter/flutter/pull/163314
- title: "Migrate to 'constraints'"
date: 2025-02-14
element:
uris: ["package:flutter/material.dart"]
getter: "height"
inClass: "TooltipThemeData"
changes:
- kind: "rename"
newName: "constraints?.minHeight"
# Changes made in https://github.com/flutter/flutter/pull/163314
- title: "Migrate to 'constraints'"
date: 2025-02-14
element:
uris: ["package:flutter/material.dart"]
method: "copyWith"
inClass: "TooltipThemeData"
oneOf:
- if: "height == 'null'"
changes:
- kind: "removeParameter"
name: "height"
- if: "constraints == '' && height != ''"
changes:
- kind: "addParameter"
index: 0
name: "constraints"
style: "optional_named"
argumentValue:
expression: "{% BoxConstraints %}(minHeight: {% height %})"
requiredIf: "height != '' && height != 'null'"
- kind: "removeParameter"
name: "height"
- if: "constraints == 'null' && height != ''"
changes:
- kind: "removeParameter"
name: "constraints"
- kind: "addParameter"
index: 0
name: "constraints"
style: "optional_named"
argumentValue:
expression: "{% BoxConstraints %}(minHeight: {% height %})"
requiredIf: "height != '' && height != 'null'"
- kind: "removeParameter"
name: "height"
- if: "constraints != '' && height != ''"
changes:
- kind: "removeParameter"
name: "height"
variables:
constraints:
kind: "fragment"
value: "arguments[constraints]"
height:
kind: "fragment"
value: "arguments[height]"
BoxConstraints:
kind: "import"
uris: ["package:flutter/rendering.dart"]
name: "BoxConstraints"
# Before adding a new fix: read instructions at the top of this file.

47
packages/flutter/lib/src/material/tooltip.dart
View File

@ -118,7 +118,7 @@ class _RenderExclusiveMouseRegion extends RenderMouseRegion {
/// {@tool dartpad}
/// This example covers most of the attributes available in Tooltip.
/// `decoration` has been used to give a gradient and borderRadius to Tooltip.
/// `height` has been used to set a specific height of the Tooltip.
/// `constraints` has been used to set the minimum width of the Tooltip.
/// `preferBelow` is true; the tooltip will prefer showing below [Tooltip]'s child widget.
/// However, it may show the tooltip above if there's not enough space
/// below the widget.
@ -169,7 +169,12 @@ class Tooltip extends StatefulWidget {
super.key,
this.message,
this.richMessage,
@Deprecated(
'Use Tooltip.constraints instead. '
'This feature was deprecated after v3.30.0-0.1.pre.',
)
this.height,
this.constraints,
this.padding,
this.margin,
this.verticalOffset,
@ -191,6 +196,10 @@ class Tooltip extends StatefulWidget {
}) : assert(
(message == null) != (richMessage == null),
'Either `message` or `richMessage` must be specified',
),
assert(
height == null || constraints == null,
'Only one of `height` and `constraints` may be specified.',
);
/// The text to display in the tooltip.
@ -203,12 +212,22 @@ class Tooltip extends StatefulWidget {
/// Only one of [message] and [richMessage] may be non-null.
final InlineSpan? richMessage;
/// The height of the tooltip's [child].
///
/// If the [child] is null, then this is the tooltip's intrinsic height.
/// The minimum height of the [Tooltip]'s message.
@Deprecated(
'Use Tooltip.constraints instead. '
'This feature was deprecated after v3.30.0-0.1.pre.',
)
final double? height;
/// The amount of space by which to inset the tooltip's [child].
/// Constrains the size of the [Tooltip]'s message.
///
/// If null, then the [TooltipThemeData.constraints] of the ambient [ThemeData.tooltipTheme]
/// will be used. If that is also null, then a default value will be picked based on the current
/// platform. For desktop platforms, the default value is `BoxConstraints(minHeight: 24.0)`,
/// while for mobile platforms the default value is `BoxConstraints(minHeight: 32.0)`.
final BoxConstraints? constraints;
/// The amount of space by which to inset the [Tooltip]'s message.
///
/// On mobile, defaults to 16.0 logical pixels horizontally and 4.0 vertically.
/// On desktop, defaults to 8.0 logical pixels horizontally and 4.0 vertically.
@ -225,6 +244,10 @@ class Tooltip extends StatefulWidget {
/// If this property is null, then [TooltipThemeData.margin] is used.
/// If [TooltipThemeData.margin] is also null, the default margin is
/// 0.0 logical pixels on all sides.
///
/// See also:
///
/// * [constraints], which allow setting an explicit size for the tooltip.
final EdgeInsetsGeometry? margin;
/// The vertical gap between the widget and the displayed tooltip.
@ -412,6 +435,9 @@ class Tooltip extends StatefulWidget {
),
);
properties.add(DoubleProperty('height', height, defaultValue: null));
properties.add(
DiagnosticsProperty<BoxConstraints>('constraints', constraints, defaultValue: null),
);
properties.add(DiagnosticsProperty<EdgeInsetsGeometry>('padding', padding, defaultValue: null));
properties.add(DiagnosticsProperty<EdgeInsetsGeometry>('margin', margin, defaultValue: null));
properties.add(DoubleProperty('vertical offset', verticalOffset, defaultValue: null));
@ -837,9 +863,12 @@ class TooltipState extends State<Tooltip> with SingleTickerProviderStateMixin {
};
final TooltipThemeData tooltipTheme = _tooltipTheme;
final BoxConstraints defaultConstraints = BoxConstraints(
minHeight: widget.height ?? tooltipTheme.height ?? _getDefaultTooltipHeight(),
);
final _TooltipOverlay overlayChild = _TooltipOverlay(
richMessage: widget.richMessage ?? TextSpan(text: widget.message),
height: widget.height ?? tooltipTheme.height ?? _getDefaultTooltipHeight(),
constraints: widget.constraints ?? tooltipTheme.constraints ?? defaultConstraints,
padding: widget.padding ?? tooltipTheme.padding ?? _getDefaultPadding(),
margin: widget.margin ?? tooltipTheme.margin ?? _defaultMargin,
onEnter: _handleMouseEnter,
@ -967,8 +996,8 @@ class _TooltipPositionDelegate extends SingleChildLayoutDelegate {
class _TooltipOverlay extends StatelessWidget {
const _TooltipOverlay({
required this.height,
required this.richMessage,
required this.constraints,
this.padding,
this.margin,
this.decoration,
@ -984,7 +1013,7 @@ class _TooltipOverlay extends StatelessWidget {
});
final InlineSpan richMessage;
final double height;
final BoxConstraints constraints;
final EdgeInsetsGeometry? padding;
final EdgeInsetsGeometry? margin;
final Decoration? decoration;
@ -1003,7 +1032,7 @@ class _TooltipOverlay extends StatelessWidget {
Widget result = FadeTransition(
opacity: animation,
child: ConstrainedBox(
constraints: BoxConstraints(minHeight: height),
constraints: constraints,
child: DefaultTextStyle(
style: textStyle,
textAlign: textAlign,

33
packages/flutter/lib/src/material/tooltip_theme.dart
View File

@ -38,7 +38,12 @@ import 'theme.dart';
class TooltipThemeData with Diagnosticable {
/// Creates the set of properties used to configure [Tooltip]s.
const TooltipThemeData({
@Deprecated(
'Use TooltipThemeData.constraints instead. '
'This feature was deprecated after v3.30.0-0.1.pre.',
)
this.height,
this.constraints,
this.padding,
this.margin,
this.verticalOffset,
@ -52,12 +57,22 @@ class TooltipThemeData with Diagnosticable {
this.exitDuration,
this.triggerMode,
this.enableFeedback,
});
}) : assert(
height == null || constraints == null,
'Only one of `height` and `constraints` may be specified.',
);
/// The height of [Tooltip.child].
/// The minimum height of the [Tooltip]'s message.
@Deprecated(
'Use TooltipThemeData.constraints instead. '
'This feature was deprecated after v3.30.0-0.1.pre.',
)
final double? height;
/// If provided, the amount of space by which to inset [Tooltip.child].
/// Constrains the size of the [Tooltip]'s message.
final BoxConstraints? constraints;
/// If provided, the amount of space by which to inset the [Tooltip]'s message.
final EdgeInsetsGeometry? padding;
/// If provided, the amount of empty space to surround the [Tooltip].
@ -128,7 +143,12 @@ class TooltipThemeData with Diagnosticable {
/// Creates a copy of this object but with the given fields replaced with the
/// new values.
TooltipThemeData copyWith({
@Deprecated(
'Use TooltipThemeData.constraints instead. '
'This feature was deprecated after v3.30.0-0.1.pre.',
)
double? height,
BoxConstraints? constraints,
EdgeInsetsGeometry? padding,
EdgeInsetsGeometry? margin,
double? verticalOffset,
@ -145,6 +165,7 @@ class TooltipThemeData with Diagnosticable {
}) {
return TooltipThemeData(
height: height ?? this.height,
constraints: constraints ?? this.constraints,
padding: padding ?? this.padding,
margin: margin ?? this.margin,
verticalOffset: verticalOffset ?? this.verticalOffset,
@ -171,6 +192,7 @@ class TooltipThemeData with Diagnosticable {
}
return TooltipThemeData(
height: lerpDouble(a?.height, b?.height, t),
constraints: BoxConstraints.lerp(a?.constraints, b?.constraints, t),
padding: EdgeInsetsGeometry.lerp(a?.padding, b?.padding, t),
margin: EdgeInsetsGeometry.lerp(a?.margin, b?.margin, t),
verticalOffset: lerpDouble(a?.verticalOffset, b?.verticalOffset, t),
@ -185,6 +207,7 @@ class TooltipThemeData with Diagnosticable {
@override
int get hashCode => Object.hash(
height,
constraints,
padding,
margin,
verticalOffset,
@ -210,6 +233,7 @@ class TooltipThemeData with Diagnosticable {
}
return other is TooltipThemeData &&
other.height == height &&
other.constraints == constraints &&
other.padding == padding &&
other.margin == margin &&
other.verticalOffset == verticalOffset &&
@ -229,6 +253,9 @@ class TooltipThemeData with Diagnosticable {
void debugFillProperties(DiagnosticPropertiesBuilder properties) {
super.debugFillProperties(properties);
properties.add(DoubleProperty('height', height, defaultValue: null));
properties.add(
DiagnosticsProperty<BoxConstraints>('constraints', constraints, defaultValue: null),
);
properties.add(DiagnosticsProperty<EdgeInsetsGeometry>('padding', padding, defaultValue: null));
properties.add(DiagnosticsProperty<EdgeInsetsGeometry>('margin', margin, defaultValue: null));
properties.add(DoubleProperty('vertical offset', verticalOffset, defaultValue: null));

29
packages/flutter/test/material/tooltip_test.dart
View File

@ -3449,6 +3449,35 @@ void main() {
expect(textStyle, same(expectedTextStyle));
expect(defaultTextStyle, same(expectedTextStyle));
});
testWidgets('Tooltip respects and prefers the given constraints over theme constraints', (
WidgetTester tester,
) async {
final GlobalKey<TooltipState> tooltipKey = GlobalKey<TooltipState>();
const BoxConstraints themeConstraints = BoxConstraints.tightFor(width: 300, height: 150);
const BoxConstraints tooltipConstraints = BoxConstraints.tightFor(width: 500, height: 250);
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(tooltipTheme: const TooltipThemeData(constraints: themeConstraints)),
home: Tooltip(
key: tooltipKey,
message: tooltipText,
constraints: tooltipConstraints,
padding: EdgeInsets.zero,
child: const ColoredBox(color: Colors.green),
),
),
);
tooltipKey.currentState?.ensureTooltipVisible();
await tester.pump(const Duration(seconds: 2));
final Finder textAncestors = find.ancestor(
of: find.text(tooltipText),
matching: find.byWidgetPredicate((_) => true),
);
expect(tester.element(textAncestors.first).size, equals(tooltipConstraints.biggest));
});
}
Future<void> setWidgetForTooltipMode(

26
packages/flutter/test/material/tooltip_theme_test.dart
View File

@ -27,6 +27,7 @@ void main() {
test('TooltipThemeData defaults', () {
const TooltipThemeData theme = TooltipThemeData();
expect(theme.height, null);
expect(theme.constraints, null);
expect(theme.padding, null);
expect(theme.verticalOffset, null);
expect(theme.preferBelow, null);
@ -1520,6 +1521,31 @@ void main() {
expect(description, <String>['"message"']);
});
testWidgets('Tooltip respects constraints from the ambient theme', (WidgetTester tester) async {
final GlobalKey<TooltipState> tooltipKey = GlobalKey<TooltipState>();
const BoxConstraints themeConstraints = BoxConstraints.tightFor(width: 300, height: 150);
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(tooltipTheme: const TooltipThemeData(constraints: themeConstraints)),
home: Tooltip(
key: tooltipKey,
message: tooltipText,
padding: EdgeInsets.zero,
child: const ColoredBox(color: Colors.green),
),
),
);
tooltipKey.currentState?.ensureTooltipVisible();
await tester.pump(const Duration(seconds: 2));
final Finder textAncestors = find.ancestor(
of: find.text(tooltipText),
matching: find.byWidgetPredicate((_) => true),
);
expect(tester.element(textAncestors.first).size, equals(themeConstraints.biggest));
});
}
SemanticsNode findDebugSemantics(RenderObject object) {

15
packages/flutter/test_fixes/material/tooltip.dart Normal file
View File

@ -0,0 +1,15 @@
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
void main() {
// Changes made in https://github.com/flutter/flutter/pull/163314
Tooltip tooltip = Tooltip();
tooltip = Tooltip(height: null);
tooltip = Tooltip(height: 15.0);
tooltip = Tooltip(constraints: null, height: 15.0);
tooltip = Tooltip(constraints: BoxConstraints(maxWidth: 20.0), height: 15.0);
tooltip.height;
}

15
packages/flutter/test_fixes/material/tooltip.dart.expect Normal file
View File

@ -0,0 +1,15 @@
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
void main() {
// Changes made in https://github.com/flutter/flutter/pull/163314
Tooltip tooltip = Tooltip();
tooltip = Tooltip();
tooltip = Tooltip(constraints: BoxConstraints(minHeight: 15.0));
tooltip = Tooltip(constraints: BoxConstraints(minHeight: 15.0));
tooltip = Tooltip(constraints: BoxConstraints(maxWidth: 20.0));
tooltip.constraints?.minHeight;
}

25
packages/flutter/test_fixes/material/tooltip_theme_data.dart Normal file
View File

@ -0,0 +1,25 @@
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
void main() {
// Changes made in https://github.com/flutter/flutter/pull/163314
TooltipThemeData tooltipThemeData = TooltipThemeData();
tooltipThemeData = TooltipThemeData(height: null);
tooltipThemeData = TooltipThemeData(height: 15.0);
tooltipThemeData = TooltipThemeData(constraints: null, height: 15.0);
tooltipThemeData = TooltipThemeData(
constraints: BoxConstraints(maxWidth: 20.0),
height: 15.0,
);
tooltipThemeData.height;
tooltipThemeData.copyWith(height: null);
tooltipThemeData.copyWith(height: 15.0);
tooltipThemeData.copyWith(constraints: null, height: 15.0);
tooltipThemeData.copyWith(
constraints: BoxConstraints(maxWidth: 20.0),
height: 15.0,
);
}

23
packages/flutter/test_fixes/material/tooltip_theme_data.dart.expect Normal file
View File

@ -0,0 +1,23 @@
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
void main() {
// Changes made in https://github.com/flutter/flutter/pull/163314
TooltipThemeData tooltipThemeData = TooltipThemeData();
tooltipThemeData = TooltipThemeData();
tooltipThemeData = TooltipThemeData(constraints: BoxConstraints(minHeight: 15.0));
tooltipThemeData = TooltipThemeData(constraints: BoxConstraints(minHeight: 15.0));
tooltipThemeData = TooltipThemeData(
constraints: BoxConstraints(maxWidth: 20.0),
);
tooltipThemeData.constraints?.minHeight;
tooltipThemeData.copyWith();
tooltipThemeData.copyWith(constraints: BoxConstraints(minHeight: 15.0));
tooltipThemeData.copyWith(constraints: BoxConstraints(minHeight: 15.0));
tooltipThemeData.copyWith(
constraints: BoxConstraints(maxWidth: 20.0),
);
}