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88 lines
2.9 KiB
88 lines
2.9 KiB
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:provider/provider.dart';
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import '../connector/meshcore_connector.dart';
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import '../connector/meshcore_protocol.dart';
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import '../helpers/snack_bar_builder.dart';
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import '../l10n/l10n.dart';
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import '../models/contact.dart';
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import 'qr_code_display.dart';
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/// Shows this device's own identity as a scannable QR plus a copyable link.
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/// (#629)
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///
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/// This is the fast, definitive way to hand someone your identity: it carries
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/// the public key itself, so it cannot fail on a name mismatch and it does not
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/// ask them to wait for an advert. It also costs the mesh no airtime, which
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/// asking for a couple of flood adverts does.
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///
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/// Rendering works on every platform, which matters on desktop: put this on
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/// screen and the other person scans it with their phone.
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Future<void> showMyContactQrDialog(BuildContext context) {
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final connector = Provider.of<MeshCoreConnector>(context, listen: false);
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final keyHex = connector.selfPublicKeyHex;
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// Without a connection we do not know our own key, so there is nothing
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// truthful to render.
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if (keyHex.length != pubKeySize * 2) {
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showDismissibleSnackBar(
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context,
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content: Text(context.l10n.contacts_qrNeedsConnection),
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);
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return Future<void>.value();
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}
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final uri = Contact.buildShareUri(
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publicKeyHex: keyHex,
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name: connector.selfName ?? '',
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// This device is a companion.
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type: advTypeChat,
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);
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return showDialog<void>(
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context: context,
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builder: (dialogContext) => AlertDialog(
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title: Text(dialogContext.l10n.contacts_myContactQr),
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content: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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QrCodeDisplay(
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data: uri,
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instructions: dialogContext.l10n.contacts_myContactQrInstructions,
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),
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const SizedBox(height: 8),
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SelectableText(
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uri,
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style: Theme.of(dialogContext).textTheme.bodySmall?.copyWith(
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fontFamily: 'monospace',
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color: Theme.of(dialogContext).colorScheme.onSurfaceVariant,
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),
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),
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],
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),
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),
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actions: [
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TextButton.icon(
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onPressed: () async {
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await Clipboard.setData(ClipboardData(text: uri));
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if (!dialogContext.mounted) return;
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showDismissibleSnackBar(
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dialogContext,
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content: Text(dialogContext.l10n.contacts_contactLinkCopied),
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);
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},
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icon: const Icon(Icons.copy),
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label: Text(dialogContext.l10n.common_copy),
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),
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TextButton(
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onPressed: () => Navigator.of(dialogContext).pop(),
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child: Text(dialogContext.l10n.common_close),
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),
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],
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),
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);
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}
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