oc-front/lib/widgets/dialog/new_box.dart

import 'package:flutter/material.dart';
import 'package:flutter_flow_chart/flutter_flow_chart.dart';
import 'package:oc_front/core/services/specialized_services/abstract_service.dart';
import 'package:oc_front/models/abstract.dart';
import 'package:oc_front/models/response.dart';

abstract class New {
  String name = "";
}

class NewBoxWidget<T extends SerializerDeserializer<dynamic>> extends StatefulWidget {
  String? _selected;
  Dashboard dash;
  final TextEditingController _ctrl = TextEditingController();
  AbstractService<T> service; 
  Function validate = () {};
  NewBoxWidget ({ super.key, required this.service, required this.dash, this.getItems });
  @override NewBoxWidgetState<T> createState() => NewBoxWidgetState<T>();

  List<DropdownMenuItem> Function(APIResponse<T>? data)? getItems;
}
class NewBoxWidgetState<T extends SerializerDeserializer<dynamic>> extends State<NewBoxWidget> {
  @override Widget build(BuildContext context) {
    widget._ctrl.value = TextEditingValue(text: widget.dash.defaultName);
    return Container(
      color: Colors.white,
      padding: const EdgeInsets.all(20),
      child: Column(
          children: [
            Row( 
                mainAxisAlignment: MainAxisAlignment.center,
                children : [ 
                  FutureBuilder<APIResponse<T>>(
                      future: (widget.service as AbstractService<T>).all(context),
                      builder: (context, snapshot) {
                    List<DropdownMenuItem> items = widget.getItems != null ?  widget.getItems!(snapshot.data) : [];
                    if (widget._selected != null 
                    && !items.where((element) => element.value == widget._selected).isNotEmpty) { 
                      items.add(DropdownMenuItem<String>(
                              value: widget._selected.toString(),
                              child: Text(widget._selected.toString()),
                            ));
                    }
                    return SizedBox( width: MediaQuery.of(context).size.width <= 540 ? MediaQuery.of(context).size.width - 140 : 400, height: 50, 
                    child: DropdownButtonFormField(
                      value: widget._selected,
                      isExpanded: true,
                      hint: const Text("load workflow...", style: TextStyle(color: Colors.grey, fontSize: 15)),
                      decoration: InputDecoration( 
                        filled: true,
                        focusedBorder: const OutlineInputBorder( borderRadius: BorderRadius.zero,
                            borderSide: BorderSide(color: Color.fromARGB(38, 166, 154, 1), width: 0),
                        ),
                        fillColor: Colors.grey.shade300,
                        contentPadding: const EdgeInsets.only(left: 30, right: 30, top: 10, bottom: 30),
                        enabledBorder: OutlineInputBorder( borderRadius: BorderRadius.zero,
                            borderSide: BorderSide(color: Colors.grey.shade300, width: 0),
                        ),
                        border: OutlineInputBorder( borderRadius: BorderRadius.zero,
                          borderSide: BorderSide(color: Colors.grey.shade300, width: 0)),
                      ),
                      items: items, onChanged: (value) {
                        setState(() {
                          widget._selected = value.toString();
                        });
                      })); 
                    }),
                  Tooltip(
                    message: 'empty selection',
                    child: InkWell( 
                      mouseCursor: widget._selected == null || widget._selected!.isEmpty ? MouseCursor.defer : SystemMouseCursors.click,
                      onTap: () { 
                        if (widget._selected == null || widget._selected!.isEmpty) { return; }
                        setState(() {  widget._selected = null; }); 
                      },
                      child: Container( 
                        width: 50, height: 50,
                        decoration: const BoxDecoration( color: Colors.black,
                          border: Border(right: BorderSide(color: Colors.white))),
                            child: Icon(Icons.refresh, color: widget._selected == null || widget._selected!.isEmpty  ? Colors.grey : Colors.white),
                        )
                   )
                  ),
                  Tooltip(
                    message: 'load workflow selected',
                    child: InkWell( 
                      mouseCursor: widget._selected == null || widget._selected!.isEmpty  
                        ? MouseCursor.defer : SystemMouseCursors.click,
                      onTap: () { 
                        if (widget._selected == null || widget._selected!.isEmpty) { return; }
                        widget.dash.name = widget._selected ?? widget.dash.name; 
                        widget.dash.notifyListeners();
                        Navigator.pop(context);
                      },
                      child: Container(
                        width: 50, height: 50,
                        color: Colors.black,
                        child: Icon(Icons.open_in_browser_outlined, 
                        color: widget._selected == null || widget._selected!.isEmpty ? Colors.grey : Colors.white),
                      )
                    )
                  )
                ]),
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                crossAxisAlignment: CrossAxisAlignment.center,
                children: [
                  Container(
                          margin: const EdgeInsets.only(top: 10),
                          width: MediaQuery.of(context).size.width <= 540 ? MediaQuery.of(context).size.width - 90 : 450,
                          height: 50,
                          child: TextFormField(
                            expands: true,
                            maxLines: null,
                            minLines: null,
                            cursorColor: const Color.fromARGB(38, 166, 154, 1),
                            controller: widget._ctrl,
                            onChanged: (value) => setState(() { widget._ctrl.value = TextEditingValue(text: value); }), 
                            validator: (value) => value == null || value.isEmpty ? "name is required" : null,
                            decoration: InputDecoration(
                              hintText: "name a new workflow...",
                              fillColor: Colors.grey.shade300,
                              filled: true,
                              contentPadding: const EdgeInsets.only(left: 30, right: 30, top: 15, bottom: 5),
                              hintStyle: const TextStyle(
                                color: Colors.black,
                                fontSize: 14,
                                fontWeight: FontWeight.w300
                              ),
                              border: InputBorder.none
                            )
                          )
                        ),
                        Tooltip(
                          message: 'add',
                          child:InkWell( 
                            mouseCursor: widget._ctrl.value.text.isEmpty ? MouseCursor.defer : SystemMouseCursors.click,
                            onTap: () async {
                              if (widget._ctrl.value.text.isNotEmpty) {
                                await widget.service.post(context, {}, { "workflowName" : widget._ctrl.value.text });
                                widget._selected = widget._ctrl.value.text;
                                widget._ctrl.value = const TextEditingValue(text: "");
                                widget.dash.name = widget._selected ?? widget.dash.name;
                                widget.dash.notifyListeners();
                                // ignore: use_build_context_synchronously
                                Navigator.pop(context);
                              }
                            },
                            child: Container(
                              margin: const EdgeInsets.only(top: 10),
                              width: 50,
                              height: 50,
                              color: Colors.black,
                              child: Icon(Icons.add, color: widget._ctrl.value.text.isEmpty ? Colors.grey : Colors.white)
                            )
                          )
                        )
                ])
          ]
        )
    );
  }
}