Add support for the DropdownMenu widget

examples/stac_gallery/assets/json/dropdown_menu_view_example.json

@@ -0,0 +1,65 @@
+{
+  "type": "scaffold",
+  "appBar": {
+    "type": "appBar",
+    "title": {
+      "type": "text",
+      "data": "Stac DropDown"
+    }
+  },
+  "body": {
+    "type": "column",
+    "children": [
+      {
+        "type": "dropdownMenu",
+        "leadingIcon": {
+          "type": "icon",
+          "iconType": "material",
+          "icon": "arrow_downward",
+          "size": 32
+        },
+        "trailingIcon": {
+          "type": "icon",
+          "iconType": "material",
+          "icon": "double_arrow",
+          "size": 32
+        },
+        "initialSelection": "b",
+        "dropdownMenuEntries": [
+          {
+            "label": "A",
+            "value": "a",
+            "leadingIcon": {
+              "type": "icon",
+              "iconType": "material",
+              "icon": "arrow_downward_sharp",
+              "size": 32
+            },
+            "trailingIcon": {
+              "type": "icon",
+              "iconType": "material",
+              "icon": "arrow_forward_ios",
+              "size": 32
+            }
+          },
+          {
+            "label": "B",
+            "value": "b",
+            "leadingIcon": {
+              "type": "icon",
+              "iconType": "material",
+              "icon": "arrow_downward_sharp",
+              "size": 32
+            },
+            "trailingIcon": {
+              "type": "icon",
+              "iconType": "material",
+              "icon": "arrow_forward_ios",
+              "size": 32
+            }
+          }
+        ]
+      }
+    ]
+  }
+}

examples/stac_gallery/assets/json/home_screen.json

@@ -1282,5 +1282,27 @@
         "assetPath": "assets/json/dynamic_list_view_example.json"
       }
     }
+  },
+  {
+    "type": "listTile",
+    "leading": {
+      "type": "icon",
+      "icon": "api"
+    },
+    "title": {
+      "type": "text",
+      "data": "Stac DropDown Menu"
+    },
+    "subtitle": {
+      "type": "text",
+      "data": "Drop down menu to select items"
+    },
+    "onTap": {
+      "actionType": "navigate",
+      "widgetJson": {
+        "type": "exampleScreen",
+        "assetPath": "assets/json/dropdown_menu_view_example.json"
+      }
+    }
   }
 ]

packages/stac/lib/src/framework/stac.dart

@@ -9,6 +9,7 @@ import 'package:stac/src/action_parsers/stac_network_request/stac_network_reques
 import 'package:stac/src/framework/stac_registry.dart';
 import 'package:stac/src/parsers/parsers.dart';
 import 'package:stac/src/parsers/stac_custom_scroll_view/stac_custom_scroll_view_parser.dart';
+import 'package:stac/src/parsers/stac_dropdown_menu/stac_dropdown_menu_parser.dart';
 import 'package:stac/src/parsers/stac_sliver_app_bar/stac_sliver_app_bar_parser.dart';
 import 'package:stac/src/services/stac_network_service.dart';
 import 'package:stac/src/utils/log.dart';
@@ -99,6 +100,7 @@ class Stac {
     const StacFittedBoxParser(),
     const StacLimitedBoxParser(),
     const StacDynamicViewParser(),
+    const StacDropdownMenuParser()
   ];
 
   static final _actionParsers = <StacActionParser>[

packages/stac/lib/src/parsers/stac_dropdown_menu/stac_dropdown_menu.dart

@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:stac/src/parsers/parsers.dart';
+import 'package:stac/src/parsers/stac_dropdown_menu_entry/stac_dropdown_menu_entry.dart'
+    show StacDropdownMenuEntry;
+import 'package:stac/src/parsers/stac_input_decoration_theme/stac_input_decoration_theme.dart';
+import 'package:stac/src/parsers/stac_offset/stac_offset.dart';
+import 'package:stac/src/utils/text_input_utils.dart';
+
+export 'package:stac/src/parsers/stac_container/stac_container_parser.dart';
+
+part 'stac_dropdown_menu.freezed.dart';
+
+part 'stac_dropdown_menu.g.dart';
+
+@freezed
+abstract class StacDropdownMenu with _$StacDropdownMenu {
+  const factory StacDropdownMenu({
+    @Default(true) bool enabled,
+    double? width,
+    double? menuHeight,
+    Map<String, dynamic>? leadingIcon,
+    Map<String, dynamic>? trailingIcon,
+    Map<String, dynamic>? label,
+    String? hintText,
+    String? helperText,
+    String? errorText,
+    Map<String, dynamic>? selectedTrailingIcon,
+    bool? enableFilter,
+    bool? enableSearch,
+    StacTextInputType? keyboardType,
+    StacTextStyle? textStyle,
+    @Default(TextAlign.start) TextAlign textAlign,
+    StacInputDecorationTheme? inputDecorationTheme,
+    @Default([]) List<StacInputFormatter> inputFormatters,
+    StacOffset? alignmentOffset,
+    StacEdgeInsets? expandedInsets,
+    bool? requestFocusOnTap,
+    dynamic initialSelection,
+    @Default([]) List<StacDropdownMenuEntry> dropdownMenuEntries,
+    @Default(DropdownMenuCloseBehavior.all)
+    DropdownMenuCloseBehavior? closeBehavior,
+  }) = _StacDropdownMenu;
+
+  factory StacDropdownMenu.fromJson(Map<String, dynamic> json) =>
+      _$StacDropdownMenuFromJson(json);
+}