stack_wallet/lib/pages/receive_view/addresses/address_qr_popup.dart

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Dart
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import 'dart:async';
import 'dart:io';
import 'dart:ui' as ui;
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_svg/svg.dart';
import 'package:path_provider/path_provider.dart';
import 'package:qr_flutter/qr_flutter.dart';
import 'package:share_plus/share_plus.dart';
import 'package:stackwallet/notifications/show_flush_bar.dart';
import 'package:stackwallet/themes/stack_colors.dart';
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import 'package:stackwallet/utilities/address_utils.dart';
import 'package:stackwallet/utilities/assets.dart';
import 'package:stackwallet/utilities/clipboard_interface.dart';
import 'package:stackwallet/utilities/enums/coin_enum.dart';
import 'package:stackwallet/utilities/text_styles.dart';
import 'package:stackwallet/utilities/util.dart';
import 'package:stackwallet/widgets/desktop/primary_button.dart';
import 'package:stackwallet/widgets/desktop/secondary_button.dart';
import 'package:stackwallet/widgets/stack_dialog.dart';
class AddressQrPopup extends StatefulWidget {
const AddressQrPopup({
Key? key,
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required this.addressString,
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required this.coin,
this.clipboard = const ClipboardWrapper(),
}) : super(key: key);
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final String addressString;
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final Coin coin;
final ClipboardInterface clipboard;
@override
State<AddressQrPopup> createState() => _AddressQrPopupState();
}
class _AddressQrPopupState extends State<AddressQrPopup> {
final _qrKey = GlobalKey();
final isDesktop = Util.isDesktop;
Future<void> _capturePng(bool shouldSaveInsteadOfShare) async {
try {
RenderRepaintBoundary boundary =
_qrKey.currentContext?.findRenderObject() as RenderRepaintBoundary;
ui.Image image = await boundary.toImage();
ByteData? byteData =
await image.toByteData(format: ui.ImageByteFormat.png);
Uint8List pngBytes = byteData!.buffer.asUint8List();
if (shouldSaveInsteadOfShare) {
if (isDesktop) {
final dir = Directory("${Platform.environment['HOME']}");
if (!dir.existsSync()) {
throw Exception(
"Home dir not found while trying to open filepicker on QR image save");
}
final path = await FilePicker.platform.saveFile(
fileName: "qrcode.png",
initialDirectory: dir.path,
);
if (path != null) {
final file = File(path);
if (file.existsSync()) {
unawaited(
showFloatingFlushBar(
type: FlushBarType.warning,
message: "$path already exists!",
context: context,
),
);
} else {
await file.writeAsBytes(pngBytes);
unawaited(
showFloatingFlushBar(
type: FlushBarType.success,
message: "$path saved!",
context: context,
),
);
}
}
} else {
// await DocumentFileSavePlus.saveFile(
// pngBytes,
// "receive_qr_code_${DateTime.now().toLocal().toIso8601String()}.png",
// "image/png");
}
} else {
final tempDir = await getTemporaryDirectory();
final file = await File("${tempDir.path}/qrcode.png").create();
await file.writeAsBytes(pngBytes);
await Share.shareFiles(["${tempDir.path}/qrcode.png"],
text: "Receive URI QR Code");
}
} catch (e) {
//todo: comeback to this
debugPrint(e.toString());
}
}
@override
Widget build(BuildContext context) {
return StackDialogBase(
child: Column(
children: [
Text(
"todo: custom label",
style: STextStyles.pageTitleH2(context),
),
const SizedBox(
height: 8,
),
Text(
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widget.addressString,
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style: STextStyles.itemSubtitle(context),
),
const SizedBox(
height: 16,
),
Center(
child: RepaintBoundary(
key: _qrKey,
child: QrImage(
data: AddressUtils.buildUriString(
widget.coin,
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widget.addressString,
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{},
),
size: 220,
backgroundColor:
Theme.of(context).extension<StackColors>()!.popupBG,
foregroundColor:
Theme.of(context).extension<StackColors>()!.accentColorDark,
),
),
),
const SizedBox(
height: 16,
),
Row(
children: [
Expanded(
child: SecondaryButton(
width: 170,
buttonHeight: isDesktop ? ButtonHeight.l : null,
onPressed: () async {
await _capturePng(false);
},
label: "Share",
icon: SvgPicture.asset(
Assets.svg.share,
width: 20,
height: 20,
color: Theme.of(context)
.extension<StackColors>()!
.buttonTextSecondary,
),
),
),
const SizedBox(
width: 16,
),
Expanded(
child: PrimaryButton(
width: 170,
onPressed: () async {
await _capturePng(true);
},
label: "Save",
icon: SvgPicture.asset(
Assets.svg.arrowDown,
width: 20,
height: 20,
color: Theme.of(context)
.extension<StackColors>()!
.buttonTextPrimary,
),
),
),
],
)
],
),
);
}
}