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iOS 16 context menu (#115805)
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Updates the text selection toolbar on iOS light mode to match changes in native iOS 16.
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@justinmc
justinmc authored Nov 29, 2022
1 parent 7966d55 commit 1cb16a1
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Showing 4 changed files with 112 additions and 26 deletions.
44 changes: 36 additions & 8 deletions packages/flutter/lib/src/cupertino/text_selection_toolbar.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -5,11 +5,13 @@
import 'dart:collection';
import 'dart:ui' as ui;

import 'package:flutter/foundation.dart' show clampDouble;
import 'package:flutter/foundation.dart' show Brightness, clampDouble;
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';

import 'colors.dart';
import 'text_selection_toolbar_button.dart';
import 'theme.dart';

// Values extracted from https://developer.apple.com/design/resources/.
// The height of the toolbar, including the arrow.
Expand All @@ -29,9 +31,27 @@ const double _kArrowScreenPadding = 26.0;
// Values extracted from https://developer.apple.com/design/resources/.
const Radius _kToolbarBorderRadius = Radius.circular(8);

// Colors extracted from https://developer.apple.com/design/resources/.
// TODO(LongCatIsLooong): https://github.com/flutter/flutter/issues/41507.
const Color _kToolbarDividerColor = Color(0xFF808080);
const CupertinoDynamicColor _kToolbarDividerColor = CupertinoDynamicColor.withBrightness(
// This value was extracted from a screenshot of iOS 16.0.3, as light mode
// didn't appear in the Apple design resources assets linked below.
color: Color(0xFFB6B6B6),
// Color extracted from https://developer.apple.com/design/resources/.
// TODO(LongCatIsLooong): https://github.com/flutter/flutter/issues/41507.
darkColor: Color(0xFF808080),
);

// These values were extracted from a screenshot of iOS 16.0.3, as light mode
// didn't appear in the Apple design resources assets linked above.
final BoxDecoration _kToolbarShadow = BoxDecoration(
borderRadius: const BorderRadius.all(_kToolbarBorderRadius),
boxShadow: <BoxShadow>[
BoxShadow(
color: CupertinoColors.black.withOpacity(0.1),
blurRadius: 16.0,
offset: Offset(0, _kToolbarArrowSize.height / 2),
),
],
);

/// The type for a Function that builds a toolbar's container with the given
/// child.
Expand Down Expand Up @@ -119,14 +139,23 @@ class CupertinoTextSelectionToolbar extends StatelessWidget {
// Builds a toolbar just like the default iOS toolbar, with the right color
// background and a rounded cutout with an arrow.
static Widget _defaultToolbarBuilder(BuildContext context, Offset anchor, bool isAbove, Widget child) {
return _CupertinoTextSelectionToolbarShape(
final Widget outputChild = _CupertinoTextSelectionToolbarShape(
anchor: anchor,
isAbove: isAbove,
child: DecoratedBox(
decoration: const BoxDecoration(color: _kToolbarDividerColor),
decoration: const BoxDecoration(
color: _kToolbarDividerColor,
),
child: child,
),
);
if (CupertinoTheme.brightnessOf(context) == Brightness.dark) {
return outputChild;
}
return DecoratedBox(
decoration: _kToolbarShadow,
child: outputChild,
);
}

@override
Expand Down Expand Up @@ -226,7 +255,6 @@ class _RenderCupertinoTextSelectionToolbarShape extends RenderShiftedBox {
super.child,
);


@override
bool get isRepaintBoundary => true;

Expand Down Expand Up @@ -485,7 +513,7 @@ class _CupertinoTextSelectionToolbarContentState extends State<_CupertinoTextSel
onPressed: _handleNextPage,
text: '▶',
),
nextButtonDisabled: CupertinoTextSelectionToolbarButton.text(
nextButtonDisabled: const CupertinoTextSelectionToolbarButton.text(
text: '▶',
),
children: widget.children,
Expand Down
45 changes: 29 additions & 16 deletions packages/flutter/lib/src/cupertino/text_selection_toolbar_button.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,17 @@ const TextStyle _kToolbarButtonFontStyle = TextStyle(

// Colors extracted from https://developer.apple.com/design/resources/.
// TODO(LongCatIsLooong): https://github.com/flutter/flutter/issues/41507.
const Color _kToolbarBackgroundColor = Color(0xEB202020);
const CupertinoDynamicColor _kToolbarBackgroundColor = CupertinoDynamicColor.withBrightness(
// This value was extracted from a screenshot of iOS 16.0.3, as light mode
// didn't appear in the Apple design resources assets linked above.
color: Color(0xEB202020),
darkColor: Color(0xEBF7F7F7),
);

const CupertinoDynamicColor _kToolbarTextColor = CupertinoDynamicColor.withBrightness(
color: CupertinoColors.black,
darkColor: CupertinoColors.white,
);

// Eyeballed value.
const EdgeInsets _kToolbarButtonPadding = EdgeInsets.symmetric(vertical: 16.0, horizontal: 18.0);
Expand All @@ -33,22 +43,17 @@ class CupertinoTextSelectionToolbarButton extends StatelessWidget {
this.onPressed,
required Widget this.child,
}) : assert(child != null),
text = null,
buttonItem = null;

/// Create an instance of [CupertinoTextSelectionToolbarButton] whose child is
/// a [Text] widget styled like the default iOS text selection toolbar button.
CupertinoTextSelectionToolbarButton.text({
const CupertinoTextSelectionToolbarButton.text({
super.key,
this.onPressed,
required String text,
required this.text,
}) : buttonItem = null,
child = Text(
text,
overflow: TextOverflow.ellipsis,
style: _kToolbarButtonFontStyle.copyWith(
color: onPressed != null ? CupertinoColors.white : CupertinoColors.inactiveGray,
),
);
child = null;

/// Create an instance of [CupertinoTextSelectionToolbarButton] from the given
/// [ContextMenuButtonItem].
Expand All @@ -59,6 +64,7 @@ class CupertinoTextSelectionToolbarButton extends StatelessWidget {
required ContextMenuButtonItem this.buttonItem,
}) : assert(buttonItem != null),
child = null,
text = null,
onPressed = buttonItem.onPressed;

/// {@template flutter.cupertino.CupertinoTextSelectionToolbarButton.child}
Expand All @@ -79,6 +85,10 @@ class CupertinoTextSelectionToolbarButton extends StatelessWidget {
/// {@endtemplate}
final ContextMenuButtonItem? buttonItem;

/// The text used in the button's label when using
/// [CupertinoTextSelectionToolbarButton.text].
final String? text;

/// Returns the default button label String for the button of the given
/// [ContextMenuButtonItem]'s [ContextMenuButtonType].
static String getButtonLabel(BuildContext context, ContextMenuButtonItem buttonItem) {
Expand All @@ -105,12 +115,15 @@ class CupertinoTextSelectionToolbarButton extends StatelessWidget {
@override
Widget build(BuildContext context) {
final Widget child = this.child ?? Text(
getButtonLabel(context, buttonItem!),
overflow: TextOverflow.ellipsis,
style: _kToolbarButtonFontStyle.copyWith(
color: onPressed != null ? CupertinoColors.white : CupertinoColors.inactiveGray,
),
);
text ?? getButtonLabel(context, buttonItem!),
overflow: TextOverflow.ellipsis,
style: _kToolbarButtonFontStyle.copyWith(
color: onPressed != null
? _kToolbarTextColor
: CupertinoColors.inactiveGray,
),
);

return CupertinoButton(
borderRadius: null,
color: _kToolbarBackgroundColor,
Expand Down
8 changes: 6 additions & 2 deletions packages/flutter/test/cupertino/text_field_test.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -1523,7 +1523,11 @@ void main() {
await tester.pump(const Duration(milliseconds: 200));

Text text = tester.widget<Text>(find.text('Paste'));
expect(text.style!.color, CupertinoColors.white);
const CupertinoDynamicColor toolbarTextColor = CupertinoDynamicColor.withBrightness(
color: CupertinoColors.black,
darkColor: CupertinoColors.white,
);
expect(text.style!.color, toolbarTextColor);
expect(text.style!.fontSize, 14);
expect(text.style!.letterSpacing, -0.15);
expect(text.style!.fontWeight, FontWeight.w400);
Expand Down Expand Up @@ -1555,7 +1559,7 @@ void main() {

text = tester.widget<Text>(find.text('Paste'));
// The toolbar buttons' text are still the same style.
expect(text.style!.color, CupertinoColors.white);
expect(text.style!.color, toolbarTextColor);
expect(text.style!.fontSize, 14);
expect(text.style!.letterSpacing, -0.15);
expect(text.style!.fontWeight, FontWeight.w400);
Expand Down
41 changes: 41 additions & 0 deletions packages/flutter/test/cupertino/text_selection_toolbar_test.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,11 @@ class TestBox extends SizedBox {
static const double itemWidth = 100.0;
}

const CupertinoDynamicColor _kToolbarBackgroundColor = CupertinoDynamicColor.withBrightness(
color: Color(0xEB202020),
darkColor: Color(0xEBF7F7F7),
);

void main() {
TestWidgetsFlutterBinding.ensureInitialized();

Expand Down Expand Up @@ -262,4 +267,40 @@ void main() {
expect(find.text('Paste'), findsNothing);
expect(find.text('Select all'), findsNothing);
}, skip: kIsWeb); // [intended] We do not use Flutter-rendered context menu on the Web.

testWidgets('draws dark buttons in dark mode and light button in light mode', (WidgetTester tester) async {
for (final Brightness brightness in Brightness.values) {
await tester.pumpWidget(
CupertinoApp(
home: Center(
child: Builder(
builder: (BuildContext context) {
return MediaQuery(
data: MediaQuery.of(context).copyWith(platformBrightness: brightness),
child: CupertinoTextSelectionToolbar(
anchorAbove: const Offset(100.0, 0.0),
anchorBelow: const Offset(100.0, 0.0),
children: <Widget>[
CupertinoTextSelectionToolbarButton.text(
onPressed: () {},
text: 'Button',
),
],
),
);
},
),
),
),
);

final Finder buttonFinder = find.byType(CupertinoButton);
expect(find.byType(CupertinoButton), findsOneWidget);
final CupertinoButton button = tester.widget(buttonFinder);
expect(
button.color,
_kToolbarBackgroundColor,
);
}
}, skip: kIsWeb); // [intended] We do not use Flutter-rendered context menu on the Web.
}

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