Created
January 20, 2023 12:51
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| export class ComboboxDataProvider extends AbstractDataProvider<AcceptableComboboxItem> { | |
| constructor(private _values: Observable<AcceptableComboboxItem[]> | AcceptableComboboxItem[]) { | |
| super(); | |
| } | |
| fetch(): Observable<AcceptableComboboxItem[]> { | |
| return isObservable(this._values) ? this._values : of(this._values); | |
| } | |
| } | |
| export class ComboboxDataSource extends AbstractDataSourceProvider<AcceptableComboboxItem> { | |
| constructor(dataProvider: ComboboxDataProvider) { | |
| super(dataProvider); | |
| } | |
| } | |
| export class ArrayComboboxDataSource extends ComboboxDataSource { | |
| /** @hidden */ | |
| constructor(data: AcceptableComboboxItem[]) { | |
| super(new ComboboxDataProvider(data)); | |
| } | |
| } | |
| export class ObservableComboboxDataSource extends ComboboxDataSource { | |
| /** @hidden */ | |
| constructor(data: Observable<AcceptableComboboxItem[]>) { | |
| super(new ComboboxDataProvider(data)); | |
| } | |
| } | |
| export interface ComboboxItem { | |
| label: string; | |
| value: string; | |
| } | |
| export type AcceptableComboboxItem = ComboboxItem | string; | |
| export class ComboboxDataTransformer implements DataSourceParser<AcceptableComboboxItem> { | |
| parse(source: Nullable<DataSource<AcceptableComboboxItem>>) { | |
| if (isDataSource(source)) { | |
| return source as ComboboxDataSource; | |
| } | |
| if (Array.isArray(source)) { | |
| return new ArrayComboboxDataSource(source); | |
| } | |
| if (isObservable(source)) { | |
| return new ObservableComboboxDataSource(source); | |
| } | |
| return null; | |
| } | |
| } |
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