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catalyst_voices/lib/widgets/modals/voices_alert_dialog.dart
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import 'package:catalyst_voices/widgets/widgets.dart'; | ||
import 'package:catalyst_voices_shared/catalyst_voices_shared.dart'; | ||
import 'package:flutter/material.dart'; | ||
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/// An alert dialog similar to [AlertDialog] | ||
/// but customized to the project needs. | ||
/// | ||
/// On extra small screens (mobile) it will fill the whole screen width, | ||
/// on larger screens it will take [_width] amount | ||
/// of horizontal space and be centered. | ||
/// | ||
/// The close (x) button will appear if the dialog [isDismissible]. | ||
class VoicesAlertDialog extends StatelessWidget { | ||
static const double _width = 360; | ||
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/// The widget which appears at the top of the dialog next to the (x) button. | ||
/// Usually a [Text] widget. | ||
final Widget? title; | ||
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/// The widget which appears below the [title], | ||
/// usually a [VoicesAvatar] widget. | ||
final Widget? icon; | ||
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/// The widget appears below the [icon], is less prominent than the [title]. | ||
/// Usually a [Text] widget. | ||
final Widget? subtitle; | ||
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/// The widget appears below the [subtitle], usually a [Text] widget, | ||
/// can be multiline. | ||
final Widget? content; | ||
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/// The list of widgets which appear at the bottom of the dialog, | ||
/// usually [VoicesFilledButton] or [VoicesTextButton]. | ||
/// | ||
/// [buttons] are separated with 8px of padding between each other | ||
/// so you don't need to add your own padding. | ||
final List<Widget> buttons; | ||
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/// Whether to show a (x) close button. | ||
final bool isDismissible; | ||
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const VoicesAlertDialog({ | ||
super.key, | ||
this.title, | ||
this.icon, | ||
this.subtitle, | ||
this.content, | ||
this.buttons = const [], | ||
this.isDismissible = true, | ||
}); | ||
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@override | ||
Widget build(BuildContext context) { | ||
final title = this.title; | ||
final icon = this.icon; | ||
final subtitle = this.subtitle; | ||
final content = this.content; | ||
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return ResponsiveBuilder<double>( | ||
xs: double.infinity, | ||
other: _width, | ||
builder: (context, width) { | ||
return Dialog( | ||
alignment: Alignment.center, | ||
child: SizedBox( | ||
width: width, | ||
child: Padding( | ||
padding: const EdgeInsets.only(top: 10, bottom: 16), | ||
child: Column( | ||
mainAxisSize: MainAxisSize.min, | ||
crossAxisAlignment: CrossAxisAlignment.stretch, | ||
children: [ | ||
if (title != null || isDismissible) | ||
Row( | ||
children: [ | ||
// if widget is dismissible then show an invisible | ||
// close button to reserve space on this side of the | ||
// row so that the title is centered | ||
if (isDismissible) | ||
const Visibility( | ||
visible: false, | ||
maintainSize: true, | ||
maintainAnimation: true, | ||
maintainState: true, | ||
child: _CloseButton(), | ||
), | ||
Expanded( | ||
child: DefaultTextStyle( | ||
style: Theme.of(context).textTheme.titleLarge!, | ||
textAlign: TextAlign.center, | ||
child: title ?? const SizedBox.shrink(), | ||
), | ||
), | ||
if (isDismissible) const _CloseButton(), | ||
], | ||
), | ||
if (icon != null) | ||
Padding( | ||
padding: const EdgeInsets.only( | ||
top: 24, | ||
left: 20, | ||
right: 20, | ||
), | ||
child: Center(child: icon), | ||
), | ||
if (subtitle != null) | ||
Padding( | ||
padding: const EdgeInsets.only( | ||
top: 16, | ||
left: 20, | ||
right: 20, | ||
), | ||
child: DefaultTextStyle( | ||
style: Theme.of(context).textTheme.titleSmall!, | ||
textAlign: TextAlign.center, | ||
child: subtitle, | ||
), | ||
), | ||
if (content != null) | ||
Padding( | ||
padding: const EdgeInsets.only( | ||
top: 16, | ||
left: 20, | ||
right: 20, | ||
), | ||
child: DefaultTextStyle( | ||
style: Theme.of(context).textTheme.bodyMedium!, | ||
textAlign: TextAlign.center, | ||
child: content, | ||
), | ||
), | ||
if (buttons.isNotEmpty) | ||
Padding( | ||
padding: const EdgeInsets.symmetric(horizontal: 20), | ||
child: Column( | ||
mainAxisSize: MainAxisSize.min, | ||
crossAxisAlignment: CrossAxisAlignment.stretch, | ||
children: [ | ||
const SizedBox(height: 24), | ||
...buttons.separatedBy(const SizedBox(height: 8)), | ||
], | ||
), | ||
), | ||
], | ||
), | ||
), | ||
), | ||
); | ||
}, | ||
); | ||
} | ||
} | ||
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class _CloseButton extends StatelessWidget { | ||
const _CloseButton(); | ||
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@override | ||
Widget build(BuildContext context) { | ||
return XButton( | ||
onTap: () => Navigator.of(context).pop(), | ||
); | ||
} | ||
} |
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