angular-material: Translate enum for AutocompleteControlRenderer

Author: daniel-shuy

packages/angular-material/src/library/controls/autocomplete.renderer.ts

@@ -34,10 +34,15 @@ import {
   Actions,
   composeWithUi,
   ControlElement,
+  EnumOption,
   isEnumControl,
+  JsonFormsState,
+  mapStateToEnumControlProps,
   OwnPropsOfControl,
+  OwnPropsOfEnum,
   RankedTester,
   rankWith,
+  StatePropsOfControl,
 } from '@jsonforms/core';
 import type { Observable } from 'rxjs';
 import { map, startWith } from 'rxjs/operators';
@@ -92,9 +97,9 @@ import { MatAutocompleteModule } from '@angular/material/autocomplete';
       >
         <mat-option
           *ngFor="let option of filteredOptions | async"
-          [value]="option"
+          [value]="option.value"
         >
-          {{ option }}
+          {{ option.label }}
         </mat-option>
       </mat-autocomplete>
       <mat-hint *ngIf="shouldShowUnfocusedDescription() || focused">{{
@@ -127,14 +132,22 @@ export class AutocompleteControlRenderer
   extends JsonFormsControl
   implements OnInit
 {
-  @Input() options: string[];
-  filteredOptions: Observable<string[]>;
+  @Input() options?: EnumOption[] | string[];
+  translatedOptions?: EnumOption[];
+  filteredOptions: Observable<EnumOption[]>;
   shouldFilter: boolean;
   focused = false;
 
   constructor(jsonformsService: JsonFormsAngularService) {
     super(jsonformsService);
   }
+
+  protected mapToProps(
+    state: JsonFormsState
+  ): StatePropsOfControl & OwnPropsOfEnum {
+    return mapStateToEnumControlProps(state, this.getOwnProps());
+  }
+
   getEventValue = (event: any) => event.target.value;
 
   ngOnInit() {
@@ -146,6 +159,10 @@ export class AutocompleteControlRenderer
     );
   }
 
+  mapAdditionalProps(_props: StatePropsOfControl & OwnPropsOfEnum) {
+    this.translatedOptions = _props.options;
+  }
+
   updateFilter(event: any) {
     // ENTER
     if (event.keyCode === 13) {
@@ -164,24 +181,40 @@ export class AutocompleteControlRenderer
     this.triggerValidation();
   }
 
-  filter(val: string): string[] {
-    return (this.options || this.scopedSchema.enum || []).filter(
+  filter(val: string): EnumOption[] {
+    return (this.translatedOptions || []).filter(
       (option) =>
         !this.shouldFilter ||
         !val ||
-        option.toLowerCase().indexOf(val.toLowerCase()) === 0
+        option.label.toLowerCase().indexOf(val.toLowerCase()) === 0
     );
   }
-  protected getOwnProps(): OwnPropsOfAutoComplete {
+  protected getOwnProps(): OwnPropsOfControl & OwnPropsOfEnum {
     return {
       ...super.getOwnProps(),
-      options: this.options,
+      options: this.stringOptionsToEnumOptions(this.options),
     };
   }
-}
 
-export const enumControlTester: RankedTester = rankWith(2, isEnumControl);
+  /**
+   * For {@link options} input backwards compatibility
+   */
+  protected stringOptionsToEnumOptions(
+    options: typeof this.options
+  ): EnumOption[] | undefined {
+    if (!options) {
+      return undefined;
+    }
 
-interface OwnPropsOfAutoComplete extends OwnPropsOfControl {
-  options: string[];
+    return options.every((item) => typeof item === 'string')
+      ? options.map((str) => {
+          return {
+            label: str,
+            value: str,
+          } satisfies EnumOption;
+        })
+      : options;
+  }
 }
+
+export const enumControlTester: RankedTester = rankWith(2, isEnumControl);

packages/angular-material/test/autocomplete-control.spec.ts

@@ -44,7 +44,12 @@ import {
   setupMockStore,
   getJsonFormsService,
 } from './common';
-import { ControlElement, JsonSchema, Actions } from '@jsonforms/core';
+import {
+  ControlElement,
+  JsonSchema,
+  Actions,
+  JsonFormsCore,
+} from '@jsonforms/core';
 import { AutocompleteControlRenderer } from '../src';
 import { JsonFormsAngularService } from '@jsonforms/angular';
 import { ErrorObject } from 'ajv';
@@ -275,6 +280,48 @@ describe('AutoComplete control Input Event Tests', () => {
       .args[0] as MatAutocompleteSelectedEvent;
     expect(event.option.value).toBe('Y');
   }));
+  it('should render translated enum correctly', fakeAsync(async () => {
+    setupMockStore(fixture, { uischema, schema, data });
+    const state: JsonFormsCore = {
+      data,
+      schema,
+      uischema,
+    };
+    getJsonFormsService(component).init({
+      core: state,
+      i18n: {
+        translate: (key, defaultMessage) => {
+          const translations: { [key: string]: string } = {
+            'foo.A': 'Translated A',
+            'foo.B': 'Translated B',
+            'foo.C': 'Translated C',
+          };
+          return translations[key] ?? defaultMessage;
+        },
+      },
+    });
+    getJsonFormsService(component).updateCore(
+      Actions.init(data, schema, uischema)
+    );
+    component.ngOnInit();
+    fixture.detectChanges();
+    const spy = spyOn(component, 'onSelect');
+
+    await (await loader.getHarness(MatAutocompleteHarness)).focus();
+    fixture.detectChanges();
+
+    await (
+      await loader.getHarness(MatAutocompleteHarness)
+    ).selectOption({
+      text: 'Translated B',
+    });
+    fixture.detectChanges();
+    tick();
+
+    const event = spy.calls.mostRecent()
+      .args[0] as MatAutocompleteSelectedEvent;
+    expect(event.option.value).toBe('B');
+  }));
 });
 describe('AutoComplete control Error Tests', () => {
   let fixture: ComponentFixture<AutocompleteControlRenderer>;