Start a tap with drag

Now, only the empty squares contain a GestureDetector.
The GestureDetector is not necessary anymore in squares with pieces
because the tap is started when the drag is started.

devtools_options.yaml

@@ -0,0 +1 @@
+extensions:

lib/chess/chess_square.dart

@@ -59,17 +59,23 @@ class ChessSquare extends StatefulWidget {
 class _ChessSquareState extends State<ChessSquare> {
   @override
   Widget build(BuildContext context) {
-    return GestureDetector(
+    var dragTarget = Container(
-      child: Container(
+      color: widget.color,
-        color: widget.color,
+      child: ChessSquareOuterDragTarget(
-        child: ChessSquareOuterDragTarget(
+          coordinate: widget.coordinate,
-            coordinate: widget.coordinate,
+          containedPiece: widget.containedPiece ?? const ChessPiece.none()),
-            containedPiece: widget.containedPiece ?? const ChessPiece.none()),
-      ),
-      onTap: () {
-        TapBloc().add(SquareTappedEvent(
-            tapped: widget.coordinate, pieceOnSquare: widget.containedPiece));
-      },
     );
+
+    if (widget.containedPiece == null) {
+      return GestureDetector(
+        child: dragTarget,
+        onTap: () {
+          TapBloc().add(SquareTappedEvent(
+              tapped: widget.coordinate, pieceOnSquare: widget.containedPiece));
+        },
+      );
+    } else {
+      return dragTarget;
+    }
   }
 }

lib/chess/chess_square_inner_draggable.dart

@@ -50,7 +50,8 @@ class ChessSquareInnerDraggable extends StatelessWidget {
         child: containedPiece ?? Container(),
         onDragCompleted: () {},
         onDragStarted: () {
-          TapBloc().add(CancelTapEvent());
+          TapBloc().add(SquareTappedEvent(
+              tapped: coordinate, pieceOnSquare: containedPiece));
         },
       ),
     );

lib/chess/chess_square_outer_dragtarget.dart

@@ -3,6 +3,7 @@ import 'package:mchess/chess/chess_square_inner_draggable.dart';
 import 'package:mchess/chess_bloc/chess_bloc.dart';
 import 'package:mchess/chess_bloc/chess_events.dart';
 import 'package:mchess/chess_bloc/promotion_bloc.dart';
+import 'package:mchess/chess_bloc/tap_bloc.dart';
 import 'package:mchess/utils/chess_utils.dart';
 
 class ChessSquareOuterDragTarget extends StatelessWidget {
@@ -15,29 +16,31 @@ class ChessSquareOuterDragTarget extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return DragTarget<PieceDragged>(
-      onWillAccept: (move) {
+      onWillAcceptWithDetails: (details) {
-        if (move?.fromSquare == coordinate) {
+        if (details.data.fromSquare == coordinate) {
           return false;
         }
         return true;
       },
-      onAccept: (pieceDragged) {
+      onAcceptWithDetails: (details) {
         // Replace the dummy value with the actual target of the move.
-        pieceDragged.toSquare = coordinate;
+        details.data.toSquare = coordinate;
+
+        TapBloc().add(CancelTapEvent());
 
         if (isPromotionMove(
-          pieceDragged.movedPiece!.pieceClass,
+          details.data.movedPiece!.pieceClass,
           ChessBloc.myColor!,
-          pieceDragged.toSquare,
+          details.data.toSquare,
         )) {
           var move = ChessMove(
-              from: pieceDragged.fromSquare, to: pieceDragged.toSquare);
+              from: details.data.fromSquare, to: details.data.toSquare);
           PromotionBloc().add(PawnMovedToPromotionField(
               move: move, colorMoved: ChessBloc.myColor!));
-        } else if (coordinate != pieceDragged.fromSquare) {
+        } else if (coordinate != details.data.fromSquare) {
           ChessBloc().add(OwnPieceMoved(
-              startSquare: pieceDragged.fromSquare,
+              startSquare: details.data.fromSquare,
-              endSquare: pieceDragged.toSquare));
+              endSquare: details.data.toSquare));
         }
       },
       builder: (context, candidateData, rejectedData) {

pubspec.lock

@@ -57,6 +57,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.18.0"
+  conditional_wrap:
+    dependency: "direct main"
+    description:
+      name: conditional_wrap
+      sha256: "3428b891b37c5e690baa362e0fd4cad9b346b533f1f8f7aeff13cd2bebd86a5b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
   crypto:
     dependency: transitive
     description:
@@ -85,10 +93,10 @@ packages:
     dependency: transitive
     description:
       name: ffi
-      sha256: "7bf0adc28a23d395f19f3f1eb21dd7cfd1dd9f8e1c50051c069122e6853bc878"
+      sha256: "493f37e7df1804778ff3a53bd691d8692ddf69702cf4c1c1096a2e41b4779e21"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.2"
   file:
     dependency: transitive
     description:
@@ -148,10 +156,10 @@ packages:
     dependency: "direct main"
     description:
       name: go_router
-      sha256: "3b40e751eaaa855179b416974d59d29669e750d2e50fcdb2b37f1cb0ca8c803a"
+      sha256: "07ee2436909f749d606f53521dc1725dd738dc5196e5ff815bc254253c594075"
       url: "https://pub.dev"
     source: hosted
-    version: "13.0.1"
+    version: "13.1.0"
   http:
     dependency: "direct main"
     description:
@@ -168,6 +176,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.2"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "78eb209deea09858f5269f5a5b02be4049535f568c07b275096836f01ea323fa"
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.0"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: b46c5e37c19120a8a01918cfaf293547f47269f7cb4b0058f21531c2465d6ef0
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: a597f72a664dbd293f3bfc51f9ba69816f84dcd403cdac7066cb3f6003f3ab47
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
   lints:
     dependency: transitive
     description:
@@ -188,26 +220,26 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
+      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.16"
+    version: "0.12.16+1"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
+      sha256: "0e0a020085b65b6083975e499759762399b4475f766c21668c4ecca34ea74e5a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.0"
+    version: "0.8.0"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: a6e590c838b18133bb482a2745ad77c5bb7715fb0451209e1a7567d416678b8e
+      sha256: d584fa6707a52763a52446f02cc621b077888fb63b93bbcb1143a7be5a0c0c04
       url: "https://pub.dev"
     source: hosted
-    version: "1.10.0"
+    version: "1.11.0"
   nested:
     dependency: transitive
     description:
@@ -220,10 +252,10 @@ packages:
     dependency: transitive
     description:
       name: path
-      sha256: "8829d8a55c13fc0e37127c29fedf290c102f4e40ae94ada574091fe0ff96c917"
+      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
       url: "https://pub.dev"
     source: hosted
-    version: "1.8.3"
+    version: "1.9.0"
   path_parsing:
     dependency: transitive
     description:
@@ -469,22 +501,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: b3d56ff4341b8f182b96aceb2fa20e3dcb336b9f867bc0eafc0de10f1048e957
+      url: "https://pub.dev"
+    source: hosted
+    version: "13.0.0"
   web:
     dependency: transitive
     description:
       name: web
-      sha256: afe077240a270dcfd2aafe77602b4113645af95d0ad31128cc02bce5ac5d5152
+      sha256: "4188706108906f002b3a293509234588823c8c979dc83304e229ff400c996b05"
       url: "https://pub.dev"
     source: hosted
-    version: "0.3.0"
+    version: "0.4.2"
   web_socket_channel:
     dependency: "direct main"
     description:
       name: web_socket_channel
-      sha256: d88238e5eac9a42bb43ca4e721edba3c08c6354d4a53063afaa568516217621b
+      sha256: "939ab60734a4f8fa95feacb55804fa278de28bdeef38e616dc08e44a84adea23"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.3"
   win32:
     dependency: transitive
     description:
@@ -510,5 +550,5 @@ packages:
     source: hosted
     version: "6.5.0"
 sdks:
-  dart: ">=3.2.0 <4.0.0"
+  dart: ">=3.3.0-279.1.beta <4.0.0"
   flutter: ">=3.16.0"

pubspec.yaml

@@ -40,12 +40,13 @@ dependencies:
   cupertino_icons: ^1.0.2
   flutter_bloc: ^8.1.3
   quiver: ^3.1.0
-  web_socket_channel: ^2.4.0
+  web_socket_channel: ^2.4.3
   go_router: ^13.0.0
   http: ^1.0.0
   uuid: ^4.0.0
   shared_preferences: ^2.2.2
   universal_platform: ^1.0.0+1
+  conditional_wrap: ^3.0.0
 
 dev_dependencies:
   flutter_test: