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Code

Pass BuildContext variable to barcode views, rather than storing it locally

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This commit is contained in:
Oliver 2021-07-29 01:26:35 +10:00
parent 058cde1d3d
commit 6d1bed29c0
1 changed files with 26 additions and 47 deletions
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73
lib/barcode.dart
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@ -36,7 +36,6 @@ class BarcodeHandler {
BarcodeHandler(); BarcodeHandler();
QRViewController? _controller; QRViewController? _controller;
BuildContext? _context;
void successTone() async { void successTone() async {
@ -58,12 +57,12 @@ class BarcodeHandler {
} }
} }
Future<void> onBarcodeMatched(Map<String, dynamic> data) async { Future<void> onBarcodeMatched(BuildContext context, Map<String, dynamic> data) async {
// Called when the server "matches" a barcode // Called when the server "matches" a barcode
// Override this function // Override this function
} }
Future<void> onBarcodeUnknown(Map<String, dynamic> data) async { Future<void> onBarcodeUnknown(BuildContext context, Map<String, dynamic> data) async {
// Called when the server does not know about a barcode // Called when the server does not know about a barcode
// Override this function // Override this function
@ -76,7 +75,7 @@ class BarcodeHandler {
); );
} }
Future<void> onBarcodeUnhandled(Map<String, dynamic> data) async { Future<void> onBarcodeUnhandled(BuildContext context, Map<String, dynamic> data) async {
failureTone(); failureTone();
@ -86,8 +85,7 @@ class BarcodeHandler {
_controller?.resumeCamera(); _controller?.resumeCamera();
} }
Future<void> processBarcode(BuildContext? context, QRViewController? _controller, String barcode, {String url = "barcode/"}) async { Future<void> processBarcode(BuildContext context, QRViewController? _controller, String barcode, {String url = "barcode/"}) async {
this._context = context;
this._controller = _controller; this._controller = _controller;
print("Scanned barcode data: ${barcode}"); print("Scanned barcode data: ${barcode}");
@ -106,13 +104,13 @@ class BarcodeHandler {
if (response.data.containsKey('error')) { if (response.data.containsKey('error')) {
_controller?.resumeCamera(); _controller?.resumeCamera();
onBarcodeUnknown(response.data); onBarcodeUnknown(context, response.data);
} else if (response.data.containsKey('success')) { } else if (response.data.containsKey('success')) {
_controller?.resumeCamera(); _controller?.resumeCamera();
onBarcodeMatched(response.data); onBarcodeMatched(context, response.data);
} else { } else {
_controller?.resumeCamera(); _controller?.resumeCamera();
onBarcodeUnhandled(response.data); onBarcodeUnhandled(context, response.data);
} }
} }
} }
@ -128,7 +126,7 @@ class BarcodeScanHandler extends BarcodeHandler {
String getOverlayText(BuildContext context) => L10().barcodeScanGeneral; String getOverlayText(BuildContext context) => L10().barcodeScanGeneral;
@override @override
Future<void> onBarcodeUnknown(Map<String, dynamic> data) async { Future<void> onBarcodeUnknown(BuildContext context, Map<String, dynamic> data) async {
failureTone(); failureTone();
@ -140,7 +138,7 @@ class BarcodeScanHandler extends BarcodeHandler {
} }
@override @override
Future<void> onBarcodeMatched(Map<String, dynamic> data) async { Future<void> onBarcodeMatched(BuildContext context, Map<String, dynamic> data) async {
int pk = -1; int pk = -1;
@ -158,13 +156,8 @@ class BarcodeScanHandler extends BarcodeHandler {
InvenTreeStockLocation().get(pk).then((var loc) { InvenTreeStockLocation().get(pk).then((var loc) {
if (loc is InvenTreeStockLocation) { if (loc is InvenTreeStockLocation) {
Navigator.of(context).pop();
var _ctx = _context; Navigator.push(context, MaterialPageRoute(builder: (context) => LocationDisplayWidget(loc)));
if (_ctx != null) {
Navigator.of(_ctx).pop();
Navigator.push(_ctx, MaterialPageRoute(builder: (context) => LocationDisplayWidget(loc)));
}
} }
}); });
} else { } else {
@ -187,16 +180,12 @@ class BarcodeScanHandler extends BarcodeHandler {
InvenTreeStockItem().get(pk).then((var item) { InvenTreeStockItem().get(pk).then((var item) {
var _ctx = _context;
if (_ctx != null) {
// Dispose of the barcode scanner // Dispose of the barcode scanner
Navigator.of(_ctx).pop(); Navigator.of(context).pop();
if (item is InvenTreeStockItem) { if (item is InvenTreeStockItem) {
Navigator.push(_ctx, MaterialPageRoute(builder: (context) => StockDetailWidget(item))); Navigator.push(context, MaterialPageRoute(builder: (context) => StockDetailWidget(item)));
} }
}
}); });
} else { } else {
@ -217,16 +206,12 @@ class BarcodeScanHandler extends BarcodeHandler {
InvenTreePart().get(pk).then((var part) { InvenTreePart().get(pk).then((var part) {
var _ctx = _context;
if (_ctx != null) {
// Dismiss the barcode scanner // Dismiss the barcode scanner
Navigator.of(_ctx).pop(); Navigator.of(context).pop();
if (part is InvenTreePart) { if (part is InvenTreePart) {
Navigator.push(_ctx, MaterialPageRoute(builder: (context) => PartDetailWidget(part))); Navigator.push(context, MaterialPageRoute(builder: (context) => PartDetailWidget(part)));
} }
}
}); });
} else { } else {
@ -277,7 +262,7 @@ class StockItemBarcodeAssignmentHandler extends BarcodeHandler {
String getOverlayText(BuildContext context) => L10().barcodeScanAssign; String getOverlayText(BuildContext context) => L10().barcodeScanAssign;
@override @override
Future<void> onBarcodeMatched(Map<String, dynamic> data) async { Future<void> onBarcodeMatched(BuildContext context, Map<String, dynamic> data) async {
failureTone(); failureTone();
@ -290,7 +275,7 @@ class StockItemBarcodeAssignmentHandler extends BarcodeHandler {
} }
@override @override
Future<void> onBarcodeUnknown(Map<String, dynamic> data) async { Future<void> onBarcodeUnknown(BuildContext context, Map<String, dynamic> data) async {
// If the barcode is unknown, we *can* assign it to the stock item! // If the barcode is unknown, we *can* assign it to the stock item!
if (!data.containsKey("hash")) { if (!data.containsKey("hash")) {
@ -313,11 +298,7 @@ class StockItemBarcodeAssignmentHandler extends BarcodeHandler {
// Close the barcode scanner // Close the barcode scanner
_controller?.dispose(); _controller?.dispose();
var _ctx = (_context); Navigator.of(context).pop();
if (_ctx != null) {
Navigator.of(_ctx).pop();
}
showSnackIcon( showSnackIcon(
L10().barcodeAssigned, L10().barcodeAssigned,
@ -356,7 +337,7 @@ class StockItemScanIntoLocationHandler extends BarcodeHandler {
String getOverlayText(BuildContext context) => L10().barcodeScanLocation; String getOverlayText(BuildContext context) => L10().barcodeScanLocation;
@override @override
Future<void> onBarcodeMatched(Map<String, dynamic> data) async { Future<void> onBarcodeMatched(BuildContext context, Map<String, dynamic> data) async {
// If the barcode points to a 'stocklocation', great! // If the barcode points to a 'stocklocation', great!
if (data.containsKey('stocklocation')) { if (data.containsKey('stocklocation')) {
// Extract location information // Extract location information
@ -372,11 +353,7 @@ class StockItemScanIntoLocationHandler extends BarcodeHandler {
// Close the scanner // Close the scanner
_controller?.dispose(); _controller?.dispose();
var _ctx = _context; Navigator.of(context).pop();
if (_ctx != null) {
Navigator.of(_ctx).pop();
}
showSnackIcon( showSnackIcon(
L10().barcodeScanIntoLocationSuccess, L10().barcodeScanIntoLocationSuccess,
@ -417,7 +394,7 @@ class StockLocationScanInItemsHandler extends BarcodeHandler {
String getOverlayText(BuildContext context) => L10().barcodeScanItem; String getOverlayText(BuildContext context) => L10().barcodeScanItem;
@override @override
Future<void> onBarcodeMatched(Map<String, dynamic> data) async { Future<void> onBarcodeMatched(BuildContext context, Map<String, dynamic> data) async {
// Returned barcode must match a stock item // Returned barcode must match a stock item
if (data.containsKey('stockitem')) { if (data.containsKey('stockitem')) {
@ -512,11 +489,11 @@ class _QRViewState extends State<InvenTreeQRView> {
_QRViewState(this._handler) : super(); _QRViewState(this._handler) : super();
void _onViewCreated(QRViewController controller) { void _onViewCreated(BuildContext context, QRViewController controller) {
_controller = controller; _controller = controller;
controller.scannedDataStream.listen((barcode) { controller.scannedDataStream.listen((barcode) {
_controller?.pauseCamera(); _controller?.pauseCamera();
_handler.processBarcode(_context, _controller, barcode.code); _handler.processBarcode(context, _controller, barcode.code);
}); });
} }
@ -540,7 +517,9 @@ class _QRViewState extends State<InvenTreeQRView> {
Expanded( Expanded(
child: QRView( child: QRView(
key: qrKey, key: qrKey,
onQRViewCreated: _onViewCreated, onQRViewCreated: (QRViewController controller) {
_onViewCreated(context, controller);
},
overlay: QrScannerOverlayShape( overlay: QrScannerOverlayShape(
borderColor: Colors.red, borderColor: Colors.red,
borderRadius: 10, borderRadius: 10,