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samples/experimental/context_menus/lib/reordered_buttons_page.dart

97 lines
3.4 KiB

import 'dart:collection';
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';
import 'constants.dart';
import 'platform_selector.dart';
class ReorderedButtonsPage extends StatelessWidget {
ReorderedButtonsPage({
super.key,
required this.onChangedPlatform,
});
static const String route = 'reordered-buttons';
static const String title = 'Reordered Buttons';
static const String subtitle = 'The usual buttons, but in a different order.';
static const String url = '$kCodeUrl/reordered_buttons_page.dart';
final PlatformCallback onChangedPlatform;
final TextEditingController _controllerNormal = TextEditingController(
text: 'This button has the default buttons for reference.',
);
final TextEditingController _controllerReordered = TextEditingController(
text: 'This field has reordered buttons.',
);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text(ReorderedButtonsPage.title),
actions: <Widget>[
PlatformSelector(
onChangedPlatform: onChangedPlatform,
),
IconButton(
icon: const Icon(Icons.code),
onPressed: () async {
if (!await launchUrl(Uri.parse(url))) {
throw 'Could not launch $url';
}
},
),
],
),
body: Center(
child: SizedBox(
width: 300.0,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextField(
maxLines: 2,
controller: _controllerNormal,
),
const SizedBox(height: 20.0),
TextField(
controller: _controllerReordered,
maxLines: 2,
contextMenuBuilder: (context, editableTextState) {
// Reorder the button datas by type.
final HashMap<ContextMenuButtonType, ContextMenuButtonItem>
buttonItemsMap =
HashMap<ContextMenuButtonType, ContextMenuButtonItem>();
for (ContextMenuButtonItem buttonItem
in editableTextState.contextMenuButtonItems) {
buttonItemsMap[buttonItem.type] = buttonItem;
}
final List<ContextMenuButtonItem> reorderedButtonItems =
<ContextMenuButtonItem>[
if (buttonItemsMap
.containsKey(ContextMenuButtonType.selectAll))
buttonItemsMap[ContextMenuButtonType.selectAll]!,
if (buttonItemsMap.containsKey(ContextMenuButtonType.paste))
buttonItemsMap[ContextMenuButtonType.paste]!,
if (buttonItemsMap.containsKey(ContextMenuButtonType.copy))
buttonItemsMap[ContextMenuButtonType.copy]!,
if (buttonItemsMap.containsKey(ContextMenuButtonType.cut))
buttonItemsMap[ContextMenuButtonType.cut]!,
];
return AdaptiveTextSelectionToolbar.buttonItems(
anchors: editableTextState.contextMenuAnchors,
buttonItems: reorderedButtonItems,
);
},
),
],
),
),
),
);
}
}