Line data    Source code

       1              : // Copyright 2023 The terCAD team. All rights reserved.
       2              : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
       3              : 
       4              : import 'package:app_finance/_classes/controller/focus_controller.dart';
       5              : import 'package:app_finance/_classes/herald/app_zoom.dart';
       6              : import 'package:app_finance/_classes/structure/navigation/app_route.dart';
       7              : import 'package:app_finance/_configs/mobile_platform.dart';
       8              : import 'package:flutter/gestures.dart';
       9              : import 'package:material_ui/material_ui.dart';
      10              : import 'package:flutter/services.dart';
      11              : import 'package:provider/provider.dart';
      12              : 
      13              : enum AppEvents {
      14              :   zoomIn,
      15              :   zoomOut,
      16              :   zoomReset,
      17              :   tipDrawer,
      18              :   newBill,
      19              :   edit,
      20              :   delete,
      21              :   back,
      22              : }
      23              : 
      24              : class InputControllerWrapper extends StatefulWidget {
      25              :   final Widget child;
      26              : 
      27            6 :   const InputControllerWrapper({
      28              :     super.key,
      29              :     required this.child,
      30              :   });
      31              : 
      32            6 :   @override
      33            6 :   InputControllerWrapperState createState() => InputControllerWrapperState();
      34              : }
      35              : 
      36              : class InputControllerWrapperState extends State<InputControllerWrapper> {
      37              :   bool _ctrlPressed = false;
      38              :   late AppZoom zoom;
      39              :   final focus = FocusNode();
      40              : 
      41            6 :   @override
      42              :   void dispose() {
      43           12 :     focus.dispose();
      44            6 :     super.dispose();
      45              :   }
      46              : 
      47            0 :   void _onScaleUpdate(double step) => zoom.set(zoom.value + step);
      48              : 
      49            0 :   void _onScaleReset() => zoom.set(1.0);
      50              : 
      51            1 :   void _toggleDrawer() {
      52            3 :     if (Scaffold.of(context).isDrawerOpen) {
      53            0 :       Scaffold.of(context).closeDrawer();
      54              :     } else {
      55            3 :       Scaffold.of(context).openDrawer();
      56              :     }
      57              :   }
      58              : 
      59            0 :   void _pop() {
      60            0 :     if (Navigator.of(context).canPop()) {
      61            0 :       Navigator.of(context).pop();
      62              :     }
      63              :   }
      64              : 
      65            1 :   void onKeyEvent(KeyEvent event) {
      66            2 :     var isControlPressed = HardwareKeyboard.instance.isControlPressed;
      67            2 :     var isShiftPressed = HardwareKeyboard.instance.isShiftPressed;
      68              :     if (isControlPressed) {
      69            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.minus)) {
      70            0 :         return _onScaleUpdate(-0.1);
      71              :       }
      72            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.equal)) {
      73            0 :         return _onScaleUpdate(0.1);
      74              :       }
      75            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.digit0)) {
      76            0 :         return _onScaleReset();
      77              :       }
      78            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.keyN)) {
      79            3 :         Navigator.of(context).pushNamed(AppRoute.billAddRoute);
      80              :         return;
      81              :       }
      82            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.keyE)) {
      83              :         return; // TBD: edit item
      84              :       }
      85            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.keyD)) {
      86              :         return; // TBD: delete item
      87              :       }
      88            2 :       if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.backspace)) {
      89            0 :         return _pop();
      90              :       }
      91            2 :     } else if (isShiftPressed && HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.enter)) {
      92            1 :       return _toggleDrawer();
      93              :     }
      94            4 :     if (event.logicalKey == LogicalKeyboardKey.controlLeft || event.logicalKey == LogicalKeyboardKey.controlRight) {
      95            3 :       setState(() => _ctrlPressed = isControlPressed);
      96              :     }
      97              :   }
      98              : 
      99            0 :   void onPointerSignal(PointerSignalEvent event) {
     100            0 :     if (_ctrlPressed && event is PointerScrollEvent) {
     101            0 :       _onScaleUpdate(event.scrollDelta.dy > 0 ? -0.1 : 0.1);
     102              :     }
     103              :   }
     104              : 
     105            6 :   @override
     106              :   Widget build(BuildContext context) {
     107           12 :     zoom = Provider.of<AppZoom>(context, listen: false);
     108            6 :     if (isMobilePlatform) {
     109            0 :       return widget.child;
     110              :     }
     111            6 :     return Listener(
     112            6 :       onPointerSignal: onPointerSignal,
     113            6 :       child: KeyboardListener(
     114           12 :         focusNode: FocusController.force ? focus : (focus..requestFocus()),
     115            6 :         onKeyEvent: onKeyEvent,
     116           12 :         child: widget.child,
     117              :       ),
     118              :     );
     119              :   }
     120              : }