Pass dragging information to slot for disabled fields

example/src/Example5Colors.vue

@@ -91,7 +91,7 @@ export default {
           // Moved to gridA
           this.findAndRemove(
             item.originGridId === "gridB" ? this.placedB : this.placedC,
-            item.key
+            item.key,
           );
           this.placedA.push(item.key);
           break;
@@ -99,7 +99,7 @@ export default {
           // Moved to gridB
           this.findAndRemove(
             item.originGridId === "gridA" ? this.placedA : this.placedC,
-            item.key
+            item.key,
           );
           this.placedB.push(item.key);
           break;
@@ -107,7 +107,7 @@ export default {
           // Moved to gridC
           this.findAndRemove(
             item.originGridId === "gridB" ? this.placedB : this.placedA,
-            item.key
+            item.key,
           );
           this.placedC.push(item.key);
           break;