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Allow to customise the view of pickers #69

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merged 2 commits into from
Sep 4, 2023
Merged

Allow to customise the view of pickers #69

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21a0007
[FEATURE] Allow to customise the view of pickers
lowminchien Sep 3, 2023
ee16639
[TASK] Apply dart format
lowminchien Sep 3, 2023
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4 changes: 4 additions & 0 deletions example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,10 @@ class MyHomePageState extends State<MyHomePage> {
),
)
],
customTypeViewerBuilder: (children) => Row(
mainAxisAlignment: MainAxisAlignment.end,
children: children,
),
onFileLoading: (val) {
debugPrint(val.toString());
},
Expand Down
95 changes: 54 additions & 41 deletions lib/src/form_builder_file_picker.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -71,34 +71,39 @@ class FormBuilderFilePicker
/// to support user interactions with the picked files.
final FileViewerBuilder? customFileViewerBuilder;

/// Allow to customise the view of the pickers.
final Widget Function(List<Widget> types)? customTypeViewerBuilder;

/// Creates field for image(s) from user device storage
FormBuilderFilePicker({
//From Super
super.key,
required super.name,
super.validator,
super.initialValue,
super.decoration,
super.onChanged,
super.valueTransformer,
super.enabled,
super.onSaved,
super.autovalidateMode = AutovalidateMode.disabled,
super.onReset,
super.focusNode,
this.maxFiles,
this.withData = kIsWeb,
this.withReadStream = false,
this.allowMultiple = false,
this.previewImages = true,
this.typeSelectors = const [
TypeSelector(type: FileType.any, selector: Icon(Icons.add_circle))
],
this.allowedExtensions,
this.onFileLoading,
this.allowCompression = true,
this.customFileViewerBuilder,
}) : super(
FormBuilderFilePicker(
{
//From Super
super.key,
required super.name,
super.validator,
super.initialValue,
super.decoration,
super.onChanged,
super.valueTransformer,
super.enabled,
super.onSaved,
super.autovalidateMode = AutovalidateMode.disabled,
super.onReset,
super.focusNode,
this.maxFiles,
this.withData = kIsWeb,
this.withReadStream = false,
this.allowMultiple = false,
this.previewImages = true,
this.typeSelectors = const [
TypeSelector(type: FileType.any, selector: Icon(Icons.add_circle))
],
this.allowedExtensions,
this.onFileLoading,
this.allowCompression = true,
this.customFileViewerBuilder,
this.customTypeViewerBuilder})
: super(
builder: (FormFieldState<List<PlatformFile>?> field) {
final state = field as _FormBuilderFilePickerState;

Expand All @@ -109,21 +114,14 @@ class FormBuilderFilePicker
: null),
child: Column(
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
...typeSelectors.map(
(typeSelector) => InkWell(
onTap: state.enabled &&
(null == state._remainingItemCount ||
state._remainingItemCount! > 0)
? () => state.pickFiles(field, typeSelector.type)
: null,
child: typeSelector.selector,
customTypeViewerBuilder != null
? customTypeViewerBuilder(
state.getTypeSelectorActions(typeSelectors, field))
: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: state.getTypeSelectorActions(
typeSelectors, field),
),
),
],
),
const SizedBox(height: 3),
customFileViewerBuilder != null
? customFileViewerBuilder.call(state._files,
Expand Down Expand Up @@ -305,6 +303,21 @@ class _FormBuilderFilePickerState extends FormBuilderFieldDecorationState<
);
}

List<Widget> getTypeSelectorActions(List<TypeSelector> typeSelectors,
FormFieldState<List<PlatformFile>?> field) {
return <Widget>[
...typeSelectors.map(
(typeSelector) => InkWell(
onTap: enabled &&
(null == _remainingItemCount || _remainingItemCount! > 0)
? () => pickFiles(field, typeSelector.type)
: null,
child: typeSelector.selector,
),
),
];
}

IconData getIconData(String fileExtension) {
final lowerCaseFileExt = fileExtension.toLowerCase();
if (imageFileExts.contains(lowerCaseFileExt)) return Icons.image;
Expand Down