2652b9a305
## Description This changes the factory constructors for `TextButton.icon`, `ElevatedButton.icon`, `FilledButton.icon`, and `FilledButton.tonalIcon` to take nullable icons. If the icon is null, then the "regular" version of the button is created. ## Tests - Added tests for all four constructors.
705 lines
25 KiB
Dart
705 lines
25 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:ui' show lerpDouble;
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import 'package:flutter/foundation.dart';
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import 'package:flutter/widgets.dart';
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import 'button_style.dart';
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import 'button_style_button.dart';
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import 'color_scheme.dart';
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import 'colors.dart';
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import 'constants.dart';
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import 'elevated_button_theme.dart';
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import 'ink_ripple.dart';
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import 'ink_well.dart';
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import 'material_state.dart';
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import 'theme.dart';
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import 'theme_data.dart';
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/// A Material Design "elevated button".
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///
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/// Use elevated buttons to add dimension to otherwise mostly flat
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/// layouts, e.g. in long busy lists of content, or in wide
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/// spaces. Avoid using elevated buttons on already-elevated content
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/// such as dialogs or cards.
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///
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/// An elevated button is a label [child] displayed on a [Material]
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/// widget whose [Material.elevation] increases when the button is
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/// pressed. The label's [Text] and [Icon] widgets are displayed in
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/// [style]'s [ButtonStyle.foregroundColor] and the button's filled
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/// background is the [ButtonStyle.backgroundColor].
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///
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/// The elevated button's default style is defined by
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/// [defaultStyleOf]. The style of this elevated button can be
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/// overridden with its [style] parameter. The style of all elevated
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/// buttons in a subtree can be overridden with the
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/// [ElevatedButtonTheme], and the style of all of the elevated
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/// buttons in an app can be overridden with the [Theme]'s
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/// [ThemeData.elevatedButtonTheme] property.
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///
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/// The static [styleFrom] method is a convenient way to create a
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/// elevated button [ButtonStyle] from simple values.
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///
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/// If [onPressed] and [onLongPress] callbacks are null, then the
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/// button will be disabled.
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///
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/// {@tool dartpad}
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/// This sample produces an enabled and a disabled ElevatedButton.
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///
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/// ** See code in examples/api/lib/material/elevated_button/elevated_button.0.dart **
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/// {@end-tool}
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///
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/// See also:
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///
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/// * [FilledButton], a filled button that doesn't elevate when pressed.
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/// * [FilledButton.tonal], a filled button variant that uses a secondary fill color.
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/// * [OutlinedButton], a button with an outlined border and no fill color.
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/// * [TextButton], a button with no outline or fill color.
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/// * <https://material.io/design/components/buttons.html>
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/// * <https://m3.material.io/components/buttons>
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class ElevatedButton extends ButtonStyleButton {
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/// Create an ElevatedButton.
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const ElevatedButton({
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super.key,
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required super.onPressed,
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super.onLongPress,
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super.onHover,
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super.onFocusChange,
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super.style,
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super.focusNode,
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super.autofocus = false,
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super.clipBehavior,
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super.statesController,
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required super.child,
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});
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/// Create an elevated button from a pair of widgets that serve as the button's
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/// [icon] and [label].
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///
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/// The icon and label are arranged in a row and padded by 12 logical pixels
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/// at the start, and 16 at the end, with an 8 pixel gap in between.
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///
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/// If [icon] is null, will create an [ElevatedButton] instead.
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factory ElevatedButton.icon({
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Key? key,
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required VoidCallback? onPressed,
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VoidCallback? onLongPress,
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ValueChanged<bool>? onHover,
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ValueChanged<bool>? onFocusChange,
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ButtonStyle? style,
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FocusNode? focusNode,
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bool? autofocus,
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Clip? clipBehavior,
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MaterialStatesController? statesController,
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Widget? icon,
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required Widget label,
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}) {
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if (icon == null) {
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return ElevatedButton(
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key: key,
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onPressed: onPressed,
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onLongPress: onLongPress,
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onHover: onHover,
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onFocusChange: onFocusChange,
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style: style,
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focusNode: focusNode,
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autofocus: autofocus ?? false,
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clipBehavior: clipBehavior ?? Clip.none,
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statesController: statesController,
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child: label,
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);
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}
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return _ElevatedButtonWithIcon(
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key: key,
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onPressed: onPressed,
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onLongPress: onLongPress,
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onHover: onHover,
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onFocusChange: onFocusChange,
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style: style,
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focusNode: focusNode,
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autofocus: autofocus ?? false,
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clipBehavior: clipBehavior ?? Clip.none,
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statesController: statesController,
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icon: icon,
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label: label,
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);
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}
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/// A static convenience method that constructs an elevated button
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/// [ButtonStyle] given simple values.
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///
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/// The [foregroundColor] and [disabledForegroundColor] colors are used
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/// to create a [MaterialStateProperty] [ButtonStyle.foregroundColor], and
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/// a derived [ButtonStyle.overlayColor] if [overlayColor] isn't specified.
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///
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/// If [overlayColor] is specified and its value is [Colors.transparent]
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/// then the pressed/focused/hovered highlights are effectively defeated.
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/// Otherwise a [MaterialStateProperty] with the same opacities as the
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/// default is created.
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///
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/// The [backgroundColor] and [disabledBackgroundColor] colors are
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/// used to create a [MaterialStateProperty] [ButtonStyle.backgroundColor].
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///
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/// Similarly, the [enabledMouseCursor] and [disabledMouseCursor]
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/// parameters are used to construct [ButtonStyle.mouseCursor] and
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/// [iconColor], [disabledIconColor] are used to construct
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/// [ButtonStyle.iconColor].
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///
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/// The button's elevations are defined relative to the [elevation]
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/// parameter. The disabled elevation is the same as the parameter
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/// value, [elevation] + 2 is used when the button is hovered
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/// or focused, and elevation + 6 is used when the button is pressed.
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///
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/// All of the other parameters are either used directly or used to
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/// create a [MaterialStateProperty] with a single value for all
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/// states.
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///
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/// All parameters default to null, by default this method returns
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/// a [ButtonStyle] that doesn't override anything.
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///
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/// For example, to override the default text and icon colors for a
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/// [ElevatedButton], as well as its overlay color, with all of the
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/// standard opacity adjustments for the pressed, focused, and
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/// hovered states, one could write:
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///
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/// ```dart
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/// ElevatedButton(
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/// style: ElevatedButton.styleFrom(foregroundColor: Colors.green),
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/// onPressed: () {
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/// // ...
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/// },
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/// child: const Text('Jump'),
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/// ),
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/// ```
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///
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/// And to change the fill color:
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///
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/// ```dart
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/// ElevatedButton(
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/// style: ElevatedButton.styleFrom(backgroundColor: Colors.green),
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/// onPressed: () {
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/// // ...
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/// },
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/// child: const Text('Meow'),
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/// ),
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/// ```
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///
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static ButtonStyle styleFrom({
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Color? foregroundColor,
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Color? backgroundColor,
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Color? disabledForegroundColor,
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Color? disabledBackgroundColor,
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Color? shadowColor,
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Color? surfaceTintColor,
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Color? iconColor,
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Color? disabledIconColor,
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Color? overlayColor,
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double? elevation,
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TextStyle? textStyle,
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EdgeInsetsGeometry? padding,
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Size? minimumSize,
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Size? fixedSize,
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Size? maximumSize,
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BorderSide? side,
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OutlinedBorder? shape,
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MouseCursor? enabledMouseCursor,
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MouseCursor? disabledMouseCursor,
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VisualDensity? visualDensity,
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MaterialTapTargetSize? tapTargetSize,
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Duration? animationDuration,
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bool? enableFeedback,
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AlignmentGeometry? alignment,
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InteractiveInkFeatureFactory? splashFactory,
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ButtonLayerBuilder? backgroundBuilder,
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ButtonLayerBuilder? foregroundBuilder,
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}) {
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final MaterialStateProperty<Color?>? foregroundColorProp = switch ((foregroundColor, disabledForegroundColor)) {
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(null, null) => null,
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(_, _) => _ElevatedButtonDefaultColor(foregroundColor, disabledForegroundColor),
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};
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final MaterialStateProperty<Color?>? backgroundColorProp = switch ((backgroundColor, disabledBackgroundColor)) {
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(null, null) => null,
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(_, _) => _ElevatedButtonDefaultColor(backgroundColor, disabledBackgroundColor),
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};
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final MaterialStateProperty<Color?>? iconColorProp = switch ((iconColor, disabledIconColor)) {
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(null, null) => null,
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(_, _) => _ElevatedButtonDefaultColor(iconColor, disabledIconColor),
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};
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final MaterialStateProperty<Color?>? overlayColorProp = switch ((foregroundColor, overlayColor)) {
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(null, null) => null,
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(_, final Color overlayColor) when overlayColor.value == 0 => const MaterialStatePropertyAll<Color?>(Colors.transparent),
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(_, _) => _ElevatedButtonDefaultOverlay((overlayColor ?? foregroundColor)!),
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};
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final MaterialStateProperty<double>? elevationValue = switch (elevation) {
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null => null,
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_ => _ElevatedButtonDefaultElevation(elevation),
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};
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final MaterialStateProperty<MouseCursor?> mouseCursor = _ElevatedButtonDefaultMouseCursor(enabledMouseCursor, disabledMouseCursor);
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return ButtonStyle(
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textStyle: MaterialStatePropertyAll<TextStyle?>(textStyle),
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backgroundColor: backgroundColorProp,
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foregroundColor: foregroundColorProp,
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overlayColor: overlayColorProp,
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shadowColor: ButtonStyleButton.allOrNull<Color>(shadowColor),
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surfaceTintColor: ButtonStyleButton.allOrNull<Color>(surfaceTintColor),
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iconColor: iconColorProp,
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elevation: elevationValue,
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padding: ButtonStyleButton.allOrNull<EdgeInsetsGeometry>(padding),
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minimumSize: ButtonStyleButton.allOrNull<Size>(minimumSize),
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fixedSize: ButtonStyleButton.allOrNull<Size>(fixedSize),
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maximumSize: ButtonStyleButton.allOrNull<Size>(maximumSize),
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side: ButtonStyleButton.allOrNull<BorderSide>(side),
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shape: ButtonStyleButton.allOrNull<OutlinedBorder>(shape),
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mouseCursor: mouseCursor,
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visualDensity: visualDensity,
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tapTargetSize: tapTargetSize,
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animationDuration: animationDuration,
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enableFeedback: enableFeedback,
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alignment: alignment,
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splashFactory: splashFactory,
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backgroundBuilder: backgroundBuilder,
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foregroundBuilder: foregroundBuilder,
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);
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}
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/// Defines the button's default appearance.
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///
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/// The button [child]'s [Text] and [Icon] widgets are rendered with
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/// the [ButtonStyle]'s foreground color. The button's [InkWell] adds
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/// the style's overlay color when the button is focused, hovered
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/// or pressed. The button's background color becomes its [Material]
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/// color.
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///
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/// All of the ButtonStyle's defaults appear below. In this list
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/// "Theme.foo" is shorthand for `Theme.of(context).foo`. Color
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/// scheme values like "onSurface(0.38)" are shorthand for
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/// `onSurface.withOpacity(0.38)`. [MaterialStateProperty] valued
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/// properties that are not followed by a sublist have the same
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/// value for all states, otherwise the values are as specified for
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/// each state, and "others" means all other states.
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///
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/// {@template flutter.material.elevated_button.default_font_size}
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/// The "default font size" below refers to the font size specified in the
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/// [defaultStyleOf] method (or 14.0 if unspecified), scaled by the
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/// `MediaQuery.textScalerOf(context).scale` method. The names of the
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/// EdgeInsets constructors and `EdgeInsetsGeometry.lerp` have been abbreviated
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/// for readability.
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/// {@endtemplate}
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///
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/// The color of the [ButtonStyle.textStyle] is not used, the
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/// [ButtonStyle.foregroundColor] color is used instead.
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///
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/// ## Material 2 defaults
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///
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/// * `textStyle` - Theme.textTheme.button
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/// * `backgroundColor`
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/// * disabled - Theme.colorScheme.onSurface(0.12)
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/// * others - Theme.colorScheme.primary
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/// * `foregroundColor`
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/// * disabled - Theme.colorScheme.onSurface(0.38)
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/// * others - Theme.colorScheme.onPrimary
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/// * `overlayColor`
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/// * hovered - Theme.colorScheme.onPrimary(0.08)
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/// * focused or pressed - Theme.colorScheme.onPrimary(0.12)
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/// * `shadowColor` - Theme.shadowColor
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/// * `elevation`
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/// * disabled - 0
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/// * default - 2
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/// * hovered or focused - 4
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/// * pressed - 8
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/// * `padding`
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/// * `default font size <= 14` - horizontal(16)
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/// * `14 < default font size <= 28` - lerp(horizontal(16), horizontal(8))
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/// * `28 < default font size <= 36` - lerp(horizontal(8), horizontal(4))
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/// * `36 < default font size` - horizontal(4)
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/// * `minimumSize` - Size(64, 36)
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/// * `fixedSize` - null
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/// * `maximumSize` - Size.infinite
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/// * `side` - null
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/// * `shape` - RoundedRectangleBorder(borderRadius: BorderRadius.circular(4))
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/// * `mouseCursor`
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/// * disabled - SystemMouseCursors.basic
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/// * others - SystemMouseCursors.click
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/// * `visualDensity` - theme.visualDensity
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/// * `tapTargetSize` - theme.materialTapTargetSize
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/// * `animationDuration` - kThemeChangeDuration
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/// * `enableFeedback` - true
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/// * `alignment` - Alignment.center
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/// * `splashFactory` - InkRipple.splashFactory
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///
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/// The default padding values for the [ElevatedButton.icon] factory are slightly different:
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///
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/// * `padding`
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/// * `default font size <= 14` - start(12) end(16)
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/// * `14 < default font size <= 28` - lerp(start(12) end(16), horizontal(8))
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/// * `28 < default font size <= 36` - lerp(horizontal(8), horizontal(4))
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/// * `36 < default font size` - horizontal(4)
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///
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/// The default value for `side`, which defines the appearance of the button's
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/// outline, is null. That means that the outline is defined by the button
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/// shape's [OutlinedBorder.side]. Typically the default value of an
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/// [OutlinedBorder]'s side is [BorderSide.none], so an outline is not drawn.
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///
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/// ## Material 3 defaults
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///
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/// If [ThemeData.useMaterial3] is set to true the following defaults will
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/// be used:
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///
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/// * `textStyle` - Theme.textTheme.labelLarge
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/// * `backgroundColor`
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/// * disabled - Theme.colorScheme.onSurface(0.12)
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/// * others - Theme.colorScheme.surface
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/// * `foregroundColor`
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/// * disabled - Theme.colorScheme.onSurface(0.38)
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/// * others - Theme.colorScheme.primary
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/// * `overlayColor`
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/// * hovered - Theme.colorScheme.primary(0.08)
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/// * focused or pressed - Theme.colorScheme.primary(0.12)
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/// * `shadowColor` - Theme.colorScheme.shadow
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/// * `surfaceTintColor` - Theme.colorScheme.surfaceTint
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/// * `elevation`
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/// * disabled - 0
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/// * default - 1
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/// * hovered - 3
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/// * focused or pressed - 1
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/// * `padding`
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/// * `default font size <= 14` - horizontal(24)
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/// * `14 < default font size <= 28` - lerp(horizontal(24), horizontal(12))
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/// * `28 < default font size <= 36` - lerp(horizontal(12), horizontal(6))
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/// * `36 < default font size` - horizontal(6)
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/// * `minimumSize` - Size(64, 40)
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/// * `fixedSize` - null
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/// * `maximumSize` - Size.infinite
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/// * `side` - null
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/// * `shape` - StadiumBorder()
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/// * `mouseCursor`
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/// * disabled - SystemMouseCursors.basic
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/// * others - SystemMouseCursors.click
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/// * `visualDensity` - Theme.visualDensity
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/// * `tapTargetSize` - Theme.materialTapTargetSize
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/// * `animationDuration` - kThemeChangeDuration
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/// * `enableFeedback` - true
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/// * `alignment` - Alignment.center
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/// * `splashFactory` - Theme.splashFactory
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///
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/// For the [ElevatedButton.icon] factory, the start (generally the left) value of
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/// [padding] is reduced from 24 to 16.
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@override
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ButtonStyle defaultStyleOf(BuildContext context) {
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final ThemeData theme = Theme.of(context);
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final ColorScheme colorScheme = theme.colorScheme;
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return Theme.of(context).useMaterial3
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? _ElevatedButtonDefaultsM3(context)
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: styleFrom(
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backgroundColor: colorScheme.primary,
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foregroundColor: colorScheme.onPrimary,
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disabledBackgroundColor: colorScheme.onSurface.withOpacity(0.12),
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disabledForegroundColor: colorScheme.onSurface.withOpacity(0.38),
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shadowColor: theme.shadowColor,
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elevation: 2,
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textStyle: theme.textTheme.labelLarge,
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padding: _scaledPadding(context),
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minimumSize: const Size(64, 36),
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maximumSize: Size.infinite,
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shape: const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(4))),
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enabledMouseCursor: SystemMouseCursors.click,
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disabledMouseCursor: SystemMouseCursors.basic,
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visualDensity: theme.visualDensity,
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tapTargetSize: theme.materialTapTargetSize,
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animationDuration: kThemeChangeDuration,
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enableFeedback: true,
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alignment: Alignment.center,
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splashFactory: InkRipple.splashFactory,
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);
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}
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/// Returns the [ElevatedButtonThemeData.style] of the closest
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/// [ElevatedButtonTheme] ancestor.
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@override
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ButtonStyle? themeStyleOf(BuildContext context) {
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return ElevatedButtonTheme.of(context).style;
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}
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}
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EdgeInsetsGeometry _scaledPadding(BuildContext context) {
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final ThemeData theme = Theme.of(context);
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final double padding1x = theme.useMaterial3 ? 24.0 : 16.0;
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final double defaultFontSize = theme.textTheme.labelLarge?.fontSize ?? 14.0;
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final double effectiveTextScale = MediaQuery.textScalerOf(context).scale(defaultFontSize) / 14.0;
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return ButtonStyleButton.scaledPadding(
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EdgeInsets.symmetric(horizontal: padding1x),
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EdgeInsets.symmetric(horizontal: padding1x / 2),
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EdgeInsets.symmetric(horizontal: padding1x / 2 / 2),
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effectiveTextScale,
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);
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}
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@immutable
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class _ElevatedButtonDefaultColor extends MaterialStateProperty<Color?> with Diagnosticable {
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_ElevatedButtonDefaultColor(this.color, this.disabled);
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final Color? color;
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final Color? disabled;
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@override
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Color? resolve(Set<MaterialState> states) {
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if (states.contains(MaterialState.disabled)) {
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return disabled;
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}
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return color;
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}
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}
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@immutable
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class _ElevatedButtonDefaultOverlay extends MaterialStateProperty<Color?> with Diagnosticable {
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_ElevatedButtonDefaultOverlay(this.overlay);
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final Color overlay;
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@override
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Color? resolve(Set<MaterialState> states) {
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if (states.contains(MaterialState.pressed)) {
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return overlay.withOpacity(0.24);
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}
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if (states.contains(MaterialState.hovered)) {
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return overlay.withOpacity(0.08);
|
|
}
|
|
if (states.contains(MaterialState.focused)) {
|
|
return overlay.withOpacity(0.24);
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
@immutable
|
|
class _ElevatedButtonDefaultElevation extends MaterialStateProperty<double> with Diagnosticable {
|
|
_ElevatedButtonDefaultElevation(this.elevation);
|
|
|
|
final double elevation;
|
|
|
|
@override
|
|
double resolve(Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.disabled)) {
|
|
return 0;
|
|
}
|
|
if (states.contains(MaterialState.pressed)) {
|
|
return elevation + 6;
|
|
}
|
|
if (states.contains(MaterialState.hovered)) {
|
|
return elevation + 2;
|
|
}
|
|
if (states.contains(MaterialState.focused)) {
|
|
return elevation + 2;
|
|
}
|
|
return elevation;
|
|
}
|
|
}
|
|
|
|
@immutable
|
|
class _ElevatedButtonDefaultMouseCursor extends MaterialStateProperty<MouseCursor?> with Diagnosticable {
|
|
_ElevatedButtonDefaultMouseCursor(this.enabledCursor, this.disabledCursor);
|
|
|
|
final MouseCursor? enabledCursor;
|
|
final MouseCursor? disabledCursor;
|
|
|
|
@override
|
|
MouseCursor? resolve(Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.disabled)) {
|
|
return disabledCursor;
|
|
}
|
|
return enabledCursor;
|
|
}
|
|
}
|
|
|
|
class _ElevatedButtonWithIcon extends ElevatedButton {
|
|
_ElevatedButtonWithIcon({
|
|
super.key,
|
|
required super.onPressed,
|
|
super.onLongPress,
|
|
super.onHover,
|
|
super.onFocusChange,
|
|
super.style,
|
|
super.focusNode,
|
|
bool? autofocus,
|
|
super.clipBehavior,
|
|
super.statesController,
|
|
required Widget icon,
|
|
required Widget label,
|
|
}) : super(
|
|
autofocus: autofocus ?? false,
|
|
child: _ElevatedButtonWithIconChild(icon: icon, label: label, buttonStyle: style),
|
|
);
|
|
|
|
@override
|
|
ButtonStyle defaultStyleOf(BuildContext context) {
|
|
final bool useMaterial3 = Theme.of(context).useMaterial3;
|
|
final ButtonStyle buttonStyle = super.defaultStyleOf(context);
|
|
final double defaultFontSize = buttonStyle.textStyle?.resolve(const <MaterialState>{})?.fontSize ?? 14.0;
|
|
final double effectiveTextScale = MediaQuery.textScalerOf(context).scale(defaultFontSize) / 14.0;
|
|
|
|
final EdgeInsetsGeometry scaledPadding = useMaterial3
|
|
? ButtonStyleButton.scaledPadding(
|
|
const EdgeInsetsDirectional.fromSTEB(16, 0, 24, 0),
|
|
const EdgeInsetsDirectional.fromSTEB(8, 0, 12, 0),
|
|
const EdgeInsetsDirectional.fromSTEB(4, 0, 6, 0),
|
|
effectiveTextScale,
|
|
) : ButtonStyleButton.scaledPadding(
|
|
const EdgeInsetsDirectional.fromSTEB(12, 0, 16, 0),
|
|
const EdgeInsets.symmetric(horizontal: 8),
|
|
const EdgeInsetsDirectional.fromSTEB(8, 0, 4, 0),
|
|
effectiveTextScale,
|
|
);
|
|
return buttonStyle.copyWith(
|
|
padding: MaterialStatePropertyAll<EdgeInsetsGeometry>(scaledPadding),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _ElevatedButtonWithIconChild extends StatelessWidget {
|
|
const _ElevatedButtonWithIconChild({ required this.label, required this.icon, required this.buttonStyle });
|
|
|
|
final Widget label;
|
|
final Widget icon;
|
|
final ButtonStyle? buttonStyle;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final double defaultFontSize = buttonStyle?.textStyle?.resolve(const <MaterialState>{})?.fontSize ?? 14.0;
|
|
final double scale = clampDouble(MediaQuery.textScalerOf(context).scale(defaultFontSize) / 14.0, 1.0, 2.0) - 1.0;
|
|
final double gap = lerpDouble(8, 4, scale)!;
|
|
return Row(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: <Widget>[icon, SizedBox(width: gap), Flexible(child: label)],
|
|
);
|
|
}
|
|
}
|
|
|
|
// BEGIN GENERATED TOKEN PROPERTIES - ElevatedButton
|
|
|
|
// Do not edit by hand. The code between the "BEGIN GENERATED" and
|
|
// "END GENERATED" comments are generated from data in the Material
|
|
// Design token database by the script:
|
|
// dev/tools/gen_defaults/bin/gen_defaults.dart.
|
|
|
|
class _ElevatedButtonDefaultsM3 extends ButtonStyle {
|
|
_ElevatedButtonDefaultsM3(this.context)
|
|
: super(
|
|
animationDuration: kThemeChangeDuration,
|
|
enableFeedback: true,
|
|
alignment: Alignment.center,
|
|
);
|
|
|
|
final BuildContext context;
|
|
late final ColorScheme _colors = Theme.of(context).colorScheme;
|
|
|
|
@override
|
|
MaterialStateProperty<TextStyle?> get textStyle =>
|
|
MaterialStatePropertyAll<TextStyle?>(Theme.of(context).textTheme.labelLarge);
|
|
|
|
@override
|
|
MaterialStateProperty<Color?>? get backgroundColor =>
|
|
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.disabled)) {
|
|
return _colors.onSurface.withOpacity(0.12);
|
|
}
|
|
return _colors.surface;
|
|
});
|
|
|
|
@override
|
|
MaterialStateProperty<Color?>? get foregroundColor =>
|
|
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.disabled)) {
|
|
return _colors.onSurface.withOpacity(0.38);
|
|
}
|
|
return _colors.primary;
|
|
});
|
|
|
|
@override
|
|
MaterialStateProperty<Color?>? get overlayColor =>
|
|
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.pressed)) {
|
|
return _colors.primary.withOpacity(0.12);
|
|
}
|
|
if (states.contains(MaterialState.hovered)) {
|
|
return _colors.primary.withOpacity(0.08);
|
|
}
|
|
if (states.contains(MaterialState.focused)) {
|
|
return _colors.primary.withOpacity(0.12);
|
|
}
|
|
return null;
|
|
});
|
|
|
|
@override
|
|
MaterialStateProperty<Color>? get shadowColor =>
|
|
MaterialStatePropertyAll<Color>(_colors.shadow);
|
|
|
|
@override
|
|
MaterialStateProperty<Color>? get surfaceTintColor =>
|
|
MaterialStatePropertyAll<Color>(_colors.surfaceTint);
|
|
|
|
@override
|
|
MaterialStateProperty<double>? get elevation =>
|
|
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.disabled)) {
|
|
return 0.0;
|
|
}
|
|
if (states.contains(MaterialState.pressed)) {
|
|
return 1.0;
|
|
}
|
|
if (states.contains(MaterialState.hovered)) {
|
|
return 3.0;
|
|
}
|
|
if (states.contains(MaterialState.focused)) {
|
|
return 1.0;
|
|
}
|
|
return 1.0;
|
|
});
|
|
|
|
@override
|
|
MaterialStateProperty<EdgeInsetsGeometry>? get padding =>
|
|
MaterialStatePropertyAll<EdgeInsetsGeometry>(_scaledPadding(context));
|
|
|
|
@override
|
|
MaterialStateProperty<Size>? get minimumSize =>
|
|
const MaterialStatePropertyAll<Size>(Size(64.0, 40.0));
|
|
|
|
// No default fixedSize
|
|
|
|
@override
|
|
MaterialStateProperty<Size>? get maximumSize =>
|
|
const MaterialStatePropertyAll<Size>(Size.infinite);
|
|
|
|
// No default side
|
|
|
|
@override
|
|
MaterialStateProperty<OutlinedBorder>? get shape =>
|
|
const MaterialStatePropertyAll<OutlinedBorder>(StadiumBorder());
|
|
|
|
@override
|
|
MaterialStateProperty<MouseCursor?>? get mouseCursor =>
|
|
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
|
|
if (states.contains(MaterialState.disabled)) {
|
|
return SystemMouseCursors.basic;
|
|
}
|
|
return SystemMouseCursors.click;
|
|
});
|
|
|
|
@override
|
|
VisualDensity? get visualDensity => Theme.of(context).visualDensity;
|
|
|
|
@override
|
|
MaterialTapTargetSize? get tapTargetSize => Theme.of(context).materialTapTargetSize;
|
|
|
|
@override
|
|
InteractiveInkFeatureFactory? get splashFactory => Theme.of(context).splashFactory;
|
|
}
|
|
|
|
// END GENERATED TOKEN PROPERTIES - ElevatedButton
|