| // 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/widgets.dart'; |
| |
| import 'button.dart'; |
| import 'colors.dart'; |
| import 'debug.dart'; |
| import 'localizations.dart'; |
| |
| const TextStyle _kToolbarButtonFontStyle = TextStyle( |
| inherit: false, |
| fontSize: 14.0, |
| letterSpacing: -0.15, |
| fontWeight: FontWeight.w400, |
| ); |
| |
| // Colors extracted from https://developer.apple.com/design/resources/. |
| // TODO(LongCatIsLooong): https://github.com/flutter/flutter/issues/41507. |
| 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(0xEBF7F7F7), |
| darkColor: Color(0xEB202020), |
| ); |
| |
| const CupertinoDynamicColor _kToolbarTextColor = CupertinoDynamicColor.withBrightness( |
| color: CupertinoColors.black, |
| darkColor: CupertinoColors.white, |
| ); |
| |
| // Eyeballed value. |
| const EdgeInsets _kToolbarButtonPadding = EdgeInsets.symmetric(vertical: 16.0, horizontal: 18.0); |
| |
| /// A button in the style of the iOS text selection toolbar buttons. |
| class CupertinoTextSelectionToolbarButton extends StatelessWidget { |
| /// Create an instance of [CupertinoTextSelectionToolbarButton]. |
| /// |
| /// [child] cannot be null. |
| const CupertinoTextSelectionToolbarButton({ |
| super.key, |
| this.onPressed, |
| required Widget this.child, |
| }) : text = null, |
| buttonItem = null; |
| |
| /// Create an instance of [CupertinoTextSelectionToolbarButton] whose child is |
| /// a [Text] widget styled like the default iOS text selection toolbar button. |
| const CupertinoTextSelectionToolbarButton.text({ |
| super.key, |
| this.onPressed, |
| required this.text, |
| }) : buttonItem = null, |
| child = null; |
| |
| /// Create an instance of [CupertinoTextSelectionToolbarButton] from the given |
| /// [ContextMenuButtonItem]. |
| /// |
| /// [buttonItem] cannot be null. |
| CupertinoTextSelectionToolbarButton.buttonItem({ |
| super.key, |
| required ContextMenuButtonItem this.buttonItem, |
| }) : child = null, |
| text = null, |
| onPressed = buttonItem.onPressed; |
| |
| /// {@template flutter.cupertino.CupertinoTextSelectionToolbarButton.child} |
| /// The child of this button. |
| /// |
| /// Usually a [Text] or an [Icon]. |
| /// {@endtemplate} |
| final Widget? child; |
| |
| /// {@template flutter.cupertino.CupertinoTextSelectionToolbarButton.onPressed} |
| /// Called when this button is pressed. |
| /// {@endtemplate} |
| final VoidCallback? onPressed; |
| |
| /// {@template flutter.cupertino.CupertinoTextSelectionToolbarButton.onPressed} |
| /// The buttonItem used to generate the button when using |
| /// [CupertinoTextSelectionToolbarButton.buttonItem]. |
| /// {@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) { |
| if (buttonItem.label != null) { |
| return buttonItem.label!; |
| } |
| |
| assert(debugCheckHasCupertinoLocalizations(context)); |
| final CupertinoLocalizations localizations = CupertinoLocalizations.of(context); |
| switch (buttonItem.type) { |
| case ContextMenuButtonType.cut: |
| return localizations.cutButtonLabel; |
| case ContextMenuButtonType.copy: |
| return localizations.copyButtonLabel; |
| case ContextMenuButtonType.paste: |
| return localizations.pasteButtonLabel; |
| case ContextMenuButtonType.selectAll: |
| return localizations.selectAllButtonLabel; |
| case ContextMenuButtonType.delete: |
| case ContextMenuButtonType.custom: |
| return ''; |
| } |
| } |
| |
| @override |
| Widget build(BuildContext context) { |
| final Widget child = this.child ?? Text( |
| text ?? getButtonLabel(context, buttonItem!), |
| overflow: TextOverflow.ellipsis, |
| style: _kToolbarButtonFontStyle.copyWith( |
| color: onPressed != null |
| ? _kToolbarTextColor.resolveFrom(context) |
| : CupertinoColors.inactiveGray, |
| ), |
| ); |
| |
| return CupertinoButton( |
| borderRadius: null, |
| color: _kToolbarBackgroundColor, |
| disabledColor: _kToolbarBackgroundColor, |
| onPressed: onPressed, |
| padding: _kToolbarButtonPadding, |
| pressedOpacity: onPressed == null ? 1.0 : 0.7, |
| child: child, |
| ); |
| } |
| } |