[DEV] Added Custom Chip Selector

lib/src/Selectors/selectors.astromic.dart

@@ -37,6 +37,7 @@ class AstromicSelectors {
     void Function(List<T> selectedItems)? onChanged,
     //
     AstromicSelectorConfiguration? configuration,
+    bool isCustom = false,
     //
     double? itemSpacing = 4,
     double? runSpacing = 8,
@@ -49,8 +50,25 @@ class AstromicSelectors {
     required List<(T item, bool isEnabled)> items,
     required Widget Function(T item, {bool isSelected, VoidCallback? onTap, VoidCallback? onClearTapped}) itemBuilder,
     required Widget Function(T item) disabledItemBuilder,
-  }) =>
+    Widget Function(List<Widget> items)? groupBuilder,
-      AstromicChipSelector(
+  }) {
+    assert(
+      (!isCustom || groupBuilder != null),
+      "You have to provide the group builder in a custom constructor.",
+    );
+    return isCustom
+        ? AstromicChipSelector.custom(
+            initialSelectedValues: initialSelectedValues,
+            onChanged: onChanged,
+            //
+            configuration: configuration,
+            //
+            items: items,
+            itemBuilder: itemBuilder,
+            disabledItemBuilder: disabledItemBuilder,
+            groupBuilder: groupBuilder!,
+          )
+        : AstromicChipSelector(
             initialSelectedValues: initialSelectedValues,
             onChanged: onChanged,
             //
@@ -64,3 +82,4 @@ class AstromicSelectors {
             disabledItemBuilder: disabledItemBuilder,
           );
   }
+}

lib/src/Selectors/src/chip.selector.dart

@@ -25,6 +25,7 @@ class AstromicChipSelector<T> extends StatefulWidget {
   final List<T>? initialSelectedValues;
   final Function(List<T> selectedItems)? onChanged;
   //s1 -- Configuration
+  final bool isCustom;
   final AstromicSelectorConfiguration? configuration;
   //s1 -- Style
   final double? itemSpacing;
@@ -35,6 +36,7 @@ class AstromicChipSelector<T> extends StatefulWidget {
   //
   final Widget Function(T item, {bool isSelected, VoidCallback? onTap, VoidCallback? onClearTapped}) itemBuilder;
   final Widget Function(T item) disabledItemBuilder;
+  final Widget Function(List<Widget> items)? groupBuilder;
   //!SECTION
   //
   AstromicChipSelector({
@@ -44,6 +46,7 @@ class AstromicChipSelector<T> extends StatefulWidget {
     this.onChanged,
     //s1 -- Configuration
     this.configuration,
+    this.isCustom = false,
     //s1 -- Style
     this.itemSpacing = 8,
     this.runSpacing = 8,
@@ -51,14 +54,53 @@ class AstromicChipSelector<T> extends StatefulWidget {
     required this.items,
     required this.itemBuilder,
     required this.disabledItemBuilder,
+    this.groupBuilder,
   })  : assert(
           (configuration?.isNullable ?? true) || (initialSelectedValues != null && items.map((i) => i.$1).toList().containsAll(initialSelectedValues)),
           "Initial values are not all present in the items!",
         ),
+        assert(
+          (!isCustom || groupBuilder != null),
+          "You have to provide the group builder in a custom constructor.",
+        ),
         super(
           key: key,
         );
 
+  static AstromicChipSelector custom<T>({
+    Key? key,
+    //s1 -- Functionality
+    final List<T>? initialSelectedValues,
+    final Function(List<T> selectedItems)? onChanged,
+    //s1 -- Configuration
+    final AstromicSelectorConfiguration? configuration,
+    //s1 -- Content
+    required final List<(T item, bool isEnabled)> items,
+    //
+    required final Widget Function(T item, {bool isSelected, VoidCallback? onTap, VoidCallback? onClearTapped}) itemBuilder,
+    required final Widget Function(T item) disabledItemBuilder,
+    required final Widget Function(List<Widget> items) groupBuilder,
+  }) {
+    assert((configuration?.isNullable ?? true) || (initialSelectedValues != null && items.map((i) => i.$1).toList().containsAll(initialSelectedValues)),
+        "Initial values are not all present in the items!");
+
+    //
+    return AstromicChipSelector<T>(
+      key: key,
+      isCustom: true,
+      //
+      initialSelectedValues: initialSelectedValues,
+      onChanged: onChanged,
+      //
+      configuration: configuration,
+      //
+      items: items,
+      itemBuilder: itemBuilder,
+      disabledItemBuilder: disabledItemBuilder,
+      groupBuilder: groupBuilder,
+    );
+  }
+
   @override
   State<AstromicChipSelector<T>> createState() => _AstromicChipSelectorState<T>();
 }
@@ -172,7 +214,9 @@ class _AstromicChipSelectorState<T> extends State<AstromicChipSelector<T>> {
     //!SECTION
 
     //SECTION - Build Return
-    return _configuration.isWrap
+    return widget.isCustom && widget.groupBuilder != null
+        ? widget.groupBuilder!(baseChildren)
+        : _configuration.isWrap
             ? Wrap(
                 spacing: widget.itemSpacing!,
                 runSpacing: widget.runSpacing!,