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Added dropdown support to generated form

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This commit is contained in:
Imran Remtulla
2022-11-19 15:42:20 -05:00
parent a4bc278e4c
commit d19f9101d6
6 changed files with 40 additions and 14 deletions
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35
lib/components/generated_form.dart
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@ -2,7 +2,8 @@ import 'package:flutter/material.dart';
enum FormItemType { string, bool }
typedef OnValueChanges = void Function(List<String> values, bool valid);
typedef OnValueChanges = void Function(
List<String> values, bool valid, bool isBuilding);
class GeneratedFormItem {
late String label;
@ -13,6 +14,7 @@ class GeneratedFormItem {
late String id;
late List<Widget> belowWidgets;
late String? hint;
late List<String>? opts;
GeneratedFormItem(
{this.label = 'Input',
@ -22,7 +24,8 @@ class GeneratedFormItem {
this.additionalValidators = const [],
this.id = 'input',
this.belowWidgets = const [],
this.hint});
this.hint,
this.opts});
}
class GeneratedForm extends StatefulWidget {
@ -47,7 +50,7 @@ class _GeneratedFormState extends State<GeneratedForm> {
List<List<Widget>> rows = [];
// If any value changes, call this to update the parent with value and validity
void someValueChanged() {
void someValueChanged({bool isBuilding = false}) {
List<String> returnValues = [];
var valid = true;
for (int r = 0; r < values.length; r++) {
@ -62,7 +65,7 @@ class _GeneratedFormState extends State<GeneratedForm> {
}
}
}
widget.onValueChanges(returnValues, valid);
widget.onValueChanges(returnValues, valid, isBuilding);
}
@override
@ -75,14 +78,16 @@ class _GeneratedFormState extends State<GeneratedForm> {
.map((row) => row.map((e) {
return j < widget.defaultValues.length
? widget.defaultValues[j++]
: '';
: e.opts != null
? e.opts!.first
: '';
}).toList())
.toList();
// Dynamically create form inputs
formInputs = widget.items.asMap().entries.map((row) {
return row.value.asMap().entries.map((e) {
if (e.value.type == FormItemType.string) {
if (e.value.type == FormItemType.string && e.value.opts == null) {
final formFieldKey = GlobalKey<FormFieldState>();
return TextFormField(
key: formFieldKey,
@ -112,11 +117,29 @@ class _GeneratedFormState extends State<GeneratedForm> {
return null;
},
);
} else if (e.value.type == FormItemType.string &&
e.value.opts != null) {
if (e.value.opts!.isEmpty) {
return const Text('ERROR: DROPDOWN MUST HAVE AT LEAST ONE OPT.');
}
return DropdownButtonFormField(
decoration: const InputDecoration(labelText: 'Colour'),
value: values[row.key][e.key],
items: e.value.opts!
.map((e) => DropdownMenuItem(value: e, child: Text(e)))
.toList(),
onChanged: (value) {
setState(() {
values[row.key][e.key] = value ?? e.value.opts!.first;
someValueChanged();
});
});
} else {
return Container(); // Some input types added in build
}
}).toList();
}).toList();
someValueChanged(isBuilding: true);
}
@override