CupertinoDatePicker Control (#2795)

* CupertinoDatePicker: initial commit

* DatePicker: reformat

* CupertinoTimerPicker: cleanup

* CupertinoDatePicker can be embedded in CupertinoBottomSheet

* fix DateOrder

* remove current_date + catch assertion errors

* fix try catch

* uniform action buttons

* remove Container.on_tap

* Remove unused imports

---------

Co-authored-by: Feodor Fitsner <feodor@appveyor.com>

Author: ndonkoHenri

packages/flet/lib/src/controls/container.dart

@@ -66,7 +66,6 @@ class ContainerControl extends StatelessWidget with FletStoreMixin {
         children.where((c) => c.name == "content" && c.isVisible);
     bool ink = control.attrBool("ink", false)!;
     bool onClick = control.attrBool("onclick", false)!;
-    bool onTap = control.attrBool("ontap", false)!;
     String url = control.attrString("url", "")!;
     String? urlTarget = control.attrString("urlTarget");
     bool onLongPress = control.attrBool("onLongPress", false)!;
@@ -146,7 +145,7 @@ class ContainerControl extends StatelessWidget with FletStoreMixin {
 
       Widget? result;
 
-      if ((onTap || onClick || url != "" || onLongPress || onHover) &&
+      if ((onClick || url != "" || onLongPress || onHover) &&
           ink &&
           !disabled) {
         var ink = Material(
@@ -156,12 +155,7 @@ class ContainerControl extends StatelessWidget with FletStoreMixin {
               // Dummy callback to enable widget
               // see https://github.com/flutter/flutter/issues/50116#issuecomment-582047374
               // and https://github.com/flutter/flutter/blob/eed80afe2c641fb14b82a22279d2d78c19661787/packages/flutter/lib/src/material/ink_well.dart#L1125-L1129
-              onTap: onTap
-                  ? () {
-                      debugPrint("Container ${control.id} Tap!");
-                      backend.triggerControlEvent(control.id, "tap", "");
-                    }
-                  : null,
+              onTap: onHover ? () {} : null,
               onTapDown: onClick || url != ""
                   ? (details) {
                       debugPrint("Container ${control.id} clicked!");
@@ -257,10 +251,10 @@ class ContainerControl extends StatelessWidget with FletStoreMixin {
                     : null,
                 child: child);
 
-        if ((onTap || onClick || onLongPress || onHover || url != "") &&
+        if ((onClick || onLongPress || onHover || url != "") &&
             !disabled) {
           result = MouseRegion(
-            cursor: onTap || onClick || url != ""
+            cursor: onClick || url != ""
                 ? SystemMouseCursors.click
                 : MouseCursor.defer,
             onEnter: onHover
@@ -278,12 +272,6 @@ class ContainerControl extends StatelessWidget with FletStoreMixin {
                   }
                 : null,
             child: GestureDetector(
-              onTap: onTap
-                  ? () {
-                      debugPrint("Container ${control.id} onTap!");
-                      backend.triggerControlEvent(control.id, "ontap", "");
-                    }
-                  : null,
               onTapDown: onClick || url != ""
                   ? (details) {
                       debugPrint("Container ${control.id} clicked!");

packages/flet/lib/src/controls/create_control.dart

@@ -38,6 +38,7 @@ import 'cupertino_button.dart';
 import 'cupertino_checkbox.dart';
 import 'cupertino_context_menu.dart';
 import 'cupertino_context_menu_action.dart';
+import 'cupertino_date_picker.dart';
 import 'cupertino_dialog_action.dart';
 import 'cupertino_list_tile.dart';
 import 'cupertino_navigation_bar.dart';
@@ -494,7 +495,12 @@ Widget createWidget(
       return DatePickerControl(
           parent: parent,
           control: controlView.control,
-          children: controlView.children,
+          parentDisabled: parentDisabled,
+          backend: backend);
+    case "cupertinodatepicker":
+      return CupertinoDatePickerControl(
+          parent: parent,
+          control: controlView.control,
           parentDisabled: parentDisabled,
           backend: backend);
     case "timepicker":

packages/flet/lib/src/controls/cupertino_action_sheet_action.dart

@@ -27,6 +27,7 @@ class CupertinoActionSheetActionControl extends StatelessWidget {
     debugPrint("CupertinoActionSheetActionControl build: ${control.id}");
     bool disabled = control.isDisabled || parentDisabled;
 
+    String text = control.attrString("text", "")!;
     var contentCtrls =
         children.where((c) => c.name == "content" && c.isVisible);
     if (contentCtrls.isEmpty) {
@@ -37,13 +38,17 @@ class CupertinoActionSheetActionControl extends StatelessWidget {
     return constrainedControl(
         context,
         CupertinoActionSheetAction(
-          isDefaultAction: control.attrBool("default", false)!,
-          isDestructiveAction: control.attrBool("destructive", false)!,
+          isDefaultAction: control.attrBool("isDefaultAction", false)!,
+          isDestructiveAction: control.attrBool("isDestructiveAction", false)!,
           onPressed: () {
-            backend.triggerControlEvent(control.id, "click", "");
+            if (!disabled) {
+              backend.triggerControlEvent(control.id, "click");
+            }
           },
-          child: createControl(control, contentCtrls.first.id, disabled,
-              parentAdaptive: parentAdaptive),
+          child: contentCtrls.isNotEmpty
+              ? createControl(control, contentCtrls.first.id, disabled,
+                  parentAdaptive: parentAdaptive)
+              : Text(text),
         ),
         parent,
         control);

packages/flet/lib/src/controls/cupertino_context_menu_action.dart

@@ -54,10 +54,13 @@ class _CupertinoContextMenuActionControlState
             : Text(text, overflow: TextOverflow.ellipsis));
 
     return CupertinoContextMenuAction(
-      isDefaultAction: widget.control.attrBool("default", false)!,
-      isDestructiveAction: widget.control.attrBool("destructive", false)!,
+      isDefaultAction: widget.control.attrBool("isDefaultAction", false)!,
+      isDestructiveAction:
+          widget.control.attrBool("isDestructiveAction", false)!,
       onPressed: () {
-        widget.backend.triggerControlEvent(widget.control.id, "click", "");
+        if (!disabled) {
+          widget.backend.triggerControlEvent(widget.control.id, "click");
+        }
       },
       trailingIcon: trailingIcon,
       child: child,

packages/flet/lib/src/controls/cupertino_date_picker.dart

@@ -0,0 +1,89 @@
+import 'package:collection/collection.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import '../flet_control_backend.dart';
+import '../models/control.dart';
+import '../utils/colors.dart';
+import 'create_control.dart';
+import 'error.dart';
+
+class CupertinoDatePickerControl extends StatefulWidget {
+  final Control? parent;
+  final Control control;
+  final bool parentDisabled;
+  final FletControlBackend backend;
+
+  const CupertinoDatePickerControl(
+      {super.key,
+      this.parent,
+      required this.control,
+      required this.parentDisabled,
+      required this.backend});
+
+  @override
+  State<CupertinoDatePickerControl> createState() =>
+      _CupertinoDatePickerControlState();
+}
+
+class _CupertinoDatePickerControlState
+    extends State<CupertinoDatePickerControl> {
+  static const double _kItemExtent = 32.0;
+
+  @override
+  Widget build(BuildContext context) {
+    debugPrint("CupertinoDatePicker build: ${widget.control.id}");
+
+    bool showDayOfWeek = widget.control.attrBool("showDayOfWeek", false)!;
+    Color? bgcolor = HexColor.fromString(
+        Theme.of(context), widget.control.attrString("bgcolor", "")!);
+    DateTime? value = widget.control.attrDateTime("value");
+    DateTime? firstDate = widget.control.attrDateTime("firstDate");
+    DateTime? lastDate = widget.control.attrDateTime("lastDate");
+    int minimumYear = widget.control.attrInt("minimumYear", 1)!;
+    int? maximumYear = widget.control.attrInt("maximumYear");
+    double itemExtent = widget.control.attrDouble("itemExtent", _kItemExtent)!;
+    int minuteInterval = widget.control.attrInt("minuteInterval", 1)!;
+    bool use24hFormat = widget.control.attrBool("use24hFormat", false)!;
+
+    DatePickerDateOrder? dateOrder = DatePickerDateOrder.values
+        .firstWhereOrNull((a) =>
+            a.name.toLowerCase() ==
+            widget.control.attrString("dateOrder", "")!.toLowerCase());
+    CupertinoDatePickerMode datePickerMode = CupertinoDatePickerMode.values
+        .firstWhere(
+            (a) =>
+                a.name.toLowerCase() ==
+                widget.control.attrString("datePickerMode", "")!.toLowerCase(),
+            orElse: () => CupertinoDatePickerMode.dateAndTime);
+
+    Widget dialog;
+    try {
+      dialog = CupertinoDatePicker(
+        initialDateTime: value,
+        showDayOfWeek: showDayOfWeek,
+        minimumDate: firstDate,
+        maximumDate: lastDate,
+        backgroundColor: bgcolor,
+        minimumYear: minimumYear,
+        maximumYear: maximumYear,
+        itemExtent: itemExtent,
+        minuteInterval: minuteInterval,
+        use24hFormat: use24hFormat,
+        dateOrder: dateOrder,
+        mode: datePickerMode,
+        onDateTimeChanged: (DateTime value) {
+          String stringValue = value.toIso8601String();
+          widget.backend
+              .updateControlState(widget.control.id, {"value": stringValue});
+          widget.backend
+              .triggerControlEvent(widget.control.id, "change", stringValue);
+        },
+      );
+    } catch (e) {
+      return ErrorControl("CupertinoDatePicker Error: ${e.toString()}");
+    }
+
+    return constrainedControl(context, dialog, widget.parent, widget.control);
+  }
+}

packages/flet/lib/src/controls/date_picker.dart

@@ -8,15 +8,13 @@ import 'form_field.dart';
 class DatePickerControl extends StatefulWidget {
   final Control? parent;
   final Control control;
-  final List<Control> children;
   final bool parentDisabled;
   final FletControlBackend backend;
 
   const DatePickerControl(
       {super.key,
       this.parent,
       required this.control,
-      required this.children,
       required this.parentDisabled,
       required this.backend});
 

sdk/python/packages/flet-core/src/flet_core/__init__.py

@@ -76,6 +76,11 @@
 from flet_core.cupertino_checkbox import CupertinoCheckbox
 from flet_core.cupertino_context_menu import CupertinoContextMenu
 from flet_core.cupertino_context_menu_action import CupertinoContextMenuAction
+from flet_core.cupertino_date_picker import (
+    CupertinoDatePicker,
+    CupertinoDatePickerDateOrder,
+    CupertinoDatePickerMode,
+)
 from flet_core.cupertino_dialog_action import CupertinoDialogAction
 from flet_core.cupertino_filled_button import CupertinoFilledButton
 from flet_core.cupertino_list_tile import CupertinoListTile

sdk/python/packages/flet-core/src/flet_core/container.py

@@ -118,7 +118,6 @@ def __init__(
         url_target: Optional[str] = None,
         theme: Optional[Theme] = None,
         theme_mode: Optional[ThemeMode] = None,
-        on_release=None,
         on_click=None,
         on_long_press=None,
         on_hover=None,
@@ -165,8 +164,6 @@ def convert_container_tap_event_data(e):
             d = json.loads(e.data)
             return ContainerTapEvent(**d)
 
-        self.__on_release = EventHandler(convert_container_tap_event_data)
-        self._add_event_handler("tap", self.__on_release.get_handler())
         self.__on_click = EventHandler(convert_container_tap_event_data)
         self._add_event_handler("click", self.__on_click.get_handler())
 
@@ -195,7 +192,6 @@ def convert_container_tap_event_data(e):
         self.url_target = url_target
         self.theme = theme
         self.theme_mode = theme_mode
-        self.on_release = on_release
         self.on_click = on_click
         self.on_long_press = on_long_press
         self.on_hover = on_hover
@@ -472,16 +468,6 @@ def theme_mode(self, value: Optional[ThemeMode]):
         self.__theme_mode = value
         self._set_attr("themeMode", value.value if value is not None else None)
 
-    # on_release
-    @property
-    def on_release(self):
-        return self._get_event_handler("tap")
-
-    @on_release.setter
-    def on_release(self, handler):
-        self._add_event_handler("tap", handler)
-        self._set_attr("onTap", True if handler is not None else None)
-
     # on_click
     @property
     def on_click(self):
@@ -490,10 +476,8 @@ def on_click(self):
     @on_click.setter
     def on_click(self, handler):
         self.__on_click.subscribe(handler)
-        if handler is not None:
-            self._set_attr("onclick", True)
-        else:
-            self._set_attr("onclick", None)
+        self._set_attr("onClick", True if handler is not None else None)
+
 
     # on_long_press
     @property

sdk/python/packages/flet-core/src/flet_core/cupertino_action_sheet_action.py

@@ -23,9 +23,10 @@ class CupertinoActionSheetAction(ConstrainedControl):
 
     def __init__(
         self,
-        content: Control,
-        default: Optional[bool] = None,
-        destructive: Optional[bool] = None,
+        text: Optional[str] = None,
+        content: Optional[Control] = None,
+        is_default_action: Optional[bool] = None,
+        is_destructive_action: Optional[bool] = None,
         on_click=None,
         #
         # ConstrainedControl
@@ -89,9 +90,10 @@ def __init__(
             data=data,
         )
 
+        self.text = text
         self.content = content
-        self.default = default
-        self.destructive = destructive
+        self.is_default_action = is_default_action
+        self.is_destructive_action = is_destructive_action
         self.on_click = on_click
 
     def _get_control_name(self):
@@ -107,23 +109,32 @@ def _get_children(self):
             children.append(self.__content)
         return children
 
-    # default
+    # text
     @property
-    def default(self) -> Optional[bool]:
-        return self._get_attr("default", data_type="bool", def_value=False)
+    def text(self):
+        return self._get_attr("text")
 
-    @default.setter
-    def default(self, value: Optional[bool]):
-        self._set_attr("default", value)
+    @text.setter
+    def text(self, value):
+        self._set_attr("text", value)
 
-    # destructive
+    # is_default_action
     @property
-    def destructive(self) -> Optional[bool]:
-        return self._get_attr("destructive", data_type="bool", def_value=False)
+    def is_default_action(self) -> Optional[bool]:
+        return self._get_attr("isDefaultAction")
 
-    @destructive.setter
-    def destructive(self, value: Optional[bool]):
-        self._set_attr("destructive", value)
+    @is_default_action.setter
+    def is_default_action(self, value: Optional[bool]):
+        self._set_attr("isDefaultAction", value)
+
+    # is_destructive_action
+    @property
+    def is_destructive_action(self) -> Optional[bool]:
+        return self._get_attr("isDestructiveAction")
+
+    @is_destructive_action.setter
+    def is_destructive_action(self, value: Optional[bool]):
+        self._set_attr("isDestructiveAction", value)
 
     # content
     @property