fix(translations): memoize array translation

This commit addresses an issue where array translations were created as new objects within the core module for each render
cycle, causing unnecessary rerenders. By memoizing the translation object in the material renderer set, this commit optimizes
performance and prevents redundant rerenders.

closes eclipsesource#2342

packages/angular-material/src/library/layouts/array-layout.renderer.ts

@@ -33,10 +33,13 @@ import {
   JsonFormsAbstractControl,
 } from '@jsonforms/angular';
 import {
+  arrayDefaultTranslations,
   ArrayLayoutProps,
   ArrayTranslations,
   createDefaultValue,
+  defaultJsonFormsI18nState,
   findUISchema,
+  getArrayTranslations,
   isObjectArrayWithNesting,
   JsonFormsState,
   mapDispatchToArrayControlProps,
@@ -169,7 +172,7 @@ export class ArrayLayoutRenderer
   implements OnInit, OnDestroy
 {
   noData: boolean;
-  translations: ArrayTranslations;
+  translations: ArrayTranslations = {};
   addItem: (path: string, value: any) => () => void;
   moveItemUp: (path: string, index: number) => () => void;
   moveItemDown: (path: string, index: number) => () => void;
@@ -181,9 +184,19 @@ export class ArrayLayoutRenderer
   constructor(jsonFormsService: JsonFormsAngularService) {
     super(jsonFormsService);
   }
-  mapToProps(state: JsonFormsState): StatePropsOfArrayLayout {
+  mapToProps(
+    state: JsonFormsState
+  ): StatePropsOfArrayLayout & { translations: ArrayTranslations } {
     const props = mapStateToArrayLayoutProps(state, this.getOwnProps());
-    return { ...props };
+    const t =
+      state.jsonforms.i18n?.translate ?? defaultJsonFormsI18nState.translate;
+    const translations = getArrayTranslations(
+      t,
+      arrayDefaultTranslations,
+      props.i18nKeyPrefix,
+      props.label
+    );
+    return { ...props, translations };
   }
   remove(index: number): void {
     this.removeItems(this.propsPath, [index])();
@@ -211,10 +224,12 @@ export class ArrayLayoutRenderer
     this.moveItemDown = moveDown;
     this.removeItems = removeItems;
   }
-  mapAdditionalProps(props: ArrayLayoutProps) {
-    this.translations = props.translations;
+  mapAdditionalProps(
+    props: ArrayLayoutProps & { translations: ArrayTranslations }
+  ) {
     this.noData = !props.data || props.data === 0;
     this.uischemas = props.uischemas;
+    this.translations = props.translations;
   }
   getProps(index: number): OwnPropsOfRenderer {
     const uischema = findUISchema(

packages/angular-material/src/library/other/master-detail/master.ts

@@ -36,11 +36,14 @@ import {
 } from '@jsonforms/angular';
 import {
   ArrayControlProps,
+  arrayDefaultTranslations,
   ArrayTranslations,
   ControlElement,
   createDefaultValue,
   decode,
+  defaultJsonFormsI18nState,
   findUISchema,
+  getArrayTranslations,
   getFirstPrimitiveProp,
   JsonFormsState,
   mapDispatchToArrayControlProps,
@@ -194,7 +197,9 @@ export class MasterListComponent
     this.removeItems = removeItems;
   }
 
-  mapAdditionalProps(props: ArrayControlProps) {
+  mapAdditionalProps(
+    props: ArrayControlProps & { translations: ArrayTranslations }
+  ) {
     const { data, path, schema, uischema } = props;
     const controlElement = uischema as ControlElement;
     this.propsPath = props.path;
@@ -282,9 +287,19 @@ export class MasterListComponent
     this.removeItems(this.propsPath, [item])();
   }
 
-  protected mapToProps(state: JsonFormsState): StatePropsOfArrayControl {
+  protected mapToProps(
+    state: JsonFormsState
+  ): StatePropsOfArrayControl & { translations: ArrayTranslations } {
     const props = mapStateToArrayControlProps(state, this.getOwnProps());
-    return { ...props };
+    const t =
+      state.jsonforms.i18n?.translate ?? defaultJsonFormsI18nState.translate;
+    const translations = getArrayTranslations(
+      t,
+      arrayDefaultTranslations,
+      props.i18nKeyPrefix,
+      props.label
+    );
+    return { ...props, translations };
   }
 }
 

packages/angular-material/src/library/other/table.renderer.ts

@@ -158,15 +158,17 @@ export class TableRenderer extends JsonFormsArrayControl implements OnInit {
   moveItemUp: (path: string, index: number) => () => void;
   moveItemDown: (path: string, index: number) => () => void;
   removeItems: (path: string, toDelete: number[]) => () => void;
-  translations: ArrayTranslations;
+  translations: ArrayTranslations = {};
 
   constructor(jsonformsService: JsonFormsAngularService) {
     super(jsonformsService);
   }
   trackElement(index: number, _element: any) {
     return index ? index : null;
   }
-  mapAdditionalProps(props: ArrayControlProps) {
+  mapAdditionalProps(
+    props: ArrayControlProps & { translations: ArrayTranslations }
+  ) {
     this.items = this.generateCells(props.schema, props.path);
     this.displayedColumns = this.items.map((item) => item.property);
     if (this.isEnabled()) {

packages/angular/src/library/array-control.ts

@@ -23,6 +23,10 @@
   THE SOFTWARE.
 */
 import {
+  arrayDefaultTranslations,
+  ArrayTranslations,
+  defaultJsonFormsI18nState,
+  getArrayTranslations,
   JsonFormsState,
   mapStateToArrayControlProps,
   StatePropsOfArrayControl,
@@ -34,8 +38,18 @@ export class JsonFormsArrayControl
   extends JsonFormsAbstractControl<StatePropsOfArrayControl>
   implements OnInit, OnDestroy
 {
-  protected mapToProps(state: JsonFormsState): StatePropsOfArrayControl {
+  protected mapToProps(
+    state: JsonFormsState
+  ): StatePropsOfArrayControl & { translations: ArrayTranslations } {
     const props = mapStateToArrayControlProps(state, this.getOwnProps());
-    return { ...props };
+    const t =
+      state.jsonforms.i18n?.translate ?? defaultJsonFormsI18nState.translate;
+    const translations = getArrayTranslations(
+      t,
+      arrayDefaultTranslations,
+      props.i18nKeyPrefix,
+      props.label
+    );
+    return { ...props, translations };
   }
 }

packages/core/src/mappers/renderer.ts

@@ -47,13 +47,8 @@ import {
   getI18nKey,
   getI18nKeyPrefix,
   getI18nKeyPrefixBySchema,
-  getArrayTranslations,
-  CombinatorTranslations,
-  getCombinatorTranslations,
-  combinatorDefaultTranslations,
   getTranslator,
   getErrorTranslator,
-  arrayDefaultTranslations,
   ArrayTranslations,
 } from '../i18n';
 import cloneDeep from 'lodash/cloneDeep';
@@ -789,7 +784,6 @@ export interface ControlWithDetailProps
  */
 export interface StatePropsOfArrayControl
   extends StatePropsOfControlWithDetail {
-  translations: ArrayTranslations;
   childErrors?: ErrorObject[];
 }
 
@@ -804,12 +798,11 @@ export const mapStateToArrayControlProps = (
   state: JsonFormsState,
   ownProps: OwnPropsOfControl
 ): StatePropsOfArrayControl => {
-  const { path, schema, uischema, i18nKeyPrefix, label, ...props } =
+  const { path, schema, uischema, label, ...props } =
     mapStateToControlWithDetailProps(state, ownProps);
 
   const resolvedSchema = Resolve.schema(schema, 'items', props.rootSchema);
   const childErrors = getSubErrorsAt(path, resolvedSchema)(state);
-  const t = getTranslator()(state);
 
   return {
     ...props,
@@ -820,12 +813,6 @@ export const mapStateToArrayControlProps = (
     childErrors,
     renderers: ownProps.renderers || getRenderers(state),
     cells: ownProps.cells || getCells(state),
-    translations: getArrayTranslations(
-      t,
-      arrayDefaultTranslations,
-      i18nKeyPrefix,
-      label
-    ),
   };
 };
 
@@ -1060,7 +1047,6 @@ export interface StatePropsOfCombinator extends StatePropsOfControl {
   indexOfFittingSchema: number;
   uischemas: JsonFormsUISchemaRegistryEntry[];
   data: any;
-  translations: CombinatorTranslations;
 }
 
 export const mapStateToCombinatorRendererProps = (
@@ -1072,13 +1058,6 @@ export const mapStateToCombinatorRendererProps = (
     mapStateToControlProps(state, ownProps);
 
   const ajv = state.jsonforms.core.ajv;
-  const t = getTranslator()(state);
-  const translations = getCombinatorTranslations(
-    t,
-    combinatorDefaultTranslations,
-    i18nKeyPrefix,
-    label
-  );
   const structuralKeywords = [
     'required',
     'additionalProperties',
@@ -1125,7 +1104,6 @@ export const mapStateToCombinatorRendererProps = (
     label,
     indexOfFittingSchema,
     uischemas: getUISchemas(state),
-    translations,
   };
 };
 
@@ -1160,7 +1138,6 @@ export const mapStateToOneOfProps = (
 
 export interface StatePropsOfArrayLayout extends StatePropsOfControlWithDetail {
   data: number;
-  translations: ArrayTranslations;
   minItems?: number;
   disableRemove?: boolean;
   disableAdd?: boolean;
@@ -1176,7 +1153,7 @@ export const mapStateToArrayLayoutProps = (
   state: JsonFormsState,
   ownProps: OwnPropsOfControl
 ): StatePropsOfArrayLayout => {
-  const { path, schema, uischema, errors, i18nKeyPrefix, label, ...props } =
+  const { path, schema, uischema, errors, label, ...props } =
     mapStateToControlWithDetailProps(state, ownProps);
 
   const resolvedSchema = Resolve.schema(schema, 'items', props.rootSchema);
@@ -1204,12 +1181,6 @@ export const mapStateToArrayLayoutProps = (
     data: props.data ? props.data.length : 0,
     errors: allErrors,
     minItems: schema.minItems,
-    translations: getArrayTranslations(
-      t,
-      arrayDefaultTranslations,
-      i18nKeyPrefix,
-      label
-    ),
   };
 };
 

packages/material-renderers/src/additional/MaterialListWithDetailRenderer.tsx

@@ -25,6 +25,7 @@
 import {
   and,
   ArrayLayoutProps,
+  ArrayTranslations,
   composePaths,
   computeLabel,
   createDefaultValue,
@@ -36,7 +37,9 @@ import {
 } from '@jsonforms/core';
 import {
   JsonFormsDispatch,
+  withArrayTranslationProps,
   withJsonFormsArrayLayoutProps,
+  withTranslateProps,
 } from '@jsonforms/react';
 import { Grid, List, Typography } from '@mui/material';
 import map from 'lodash/map';
@@ -63,11 +66,11 @@ export const MaterialListWithDetailRenderer = ({
   cells,
   config,
   rootSchema,
-  translations,
   description,
   disableAdd,
   disableRemove,
-}: ArrayLayoutProps) => {
+  translations,
+}: ArrayLayoutProps & { translations: ArrayTranslations }) => {
   const [selectedIndex, setSelectedIndex] = useState(undefined);
   const handleRemoveItem = useCallback(
     (p: string, value: any) => () => {
@@ -101,6 +104,7 @@ export const MaterialListWithDetailRenderer = ({
       ),
     [uischemas, schema, uischema.scope, path, uischema, rootSchema]
   );
+
   const appliedUiSchemaOptions = merge({}, config, uischema.options);
   const doDisableAdd = disableAdd || appliedUiSchemaOptions.disableAdd;
   const doDisableRemove = disableRemove || appliedUiSchemaOptions.disableRemove;
@@ -179,4 +183,6 @@ export const materialListWithDetailTester: RankedTester = rankWith(
   and(uiTypeIs('ListWithDetail'), isObjectArray)
 );
 
-export default withJsonFormsArrayLayoutProps(MaterialListWithDetailRenderer);
+export default withJsonFormsArrayLayoutProps(
+  withTranslateProps(withArrayTranslationProps(MaterialListWithDetailRenderer))
+);

packages/material-renderers/src/complex/MaterialArrayControlRenderer.tsx

@@ -25,21 +25,28 @@
 import React, { useCallback, useState } from 'react';
 import {
   ArrayLayoutProps,
+  ArrayTranslations,
   RankedTester,
   isObjectArrayControl,
   isPrimitiveArrayControl,
   or,
   rankWith,
 } from '@jsonforms/core';
-import { withJsonFormsArrayLayoutProps } from '@jsonforms/react';
+import {
+  withArrayTranslationProps,
+  withJsonFormsArrayLayoutProps,
+  withTranslateProps,
+} from '@jsonforms/react';
 import { MaterialTableControl } from './MaterialTableControl';
 import { DeleteDialog } from './DeleteDialog';
 
-export const MaterialArrayControlRenderer = (props: ArrayLayoutProps) => {
+export const MaterialArrayControlRenderer = (
+  props: ArrayLayoutProps & { translations: ArrayTranslations }
+) => {
   const [open, setOpen] = useState(false);
   const [path, setPath] = useState(undefined);
   const [rowData, setRowData] = useState(undefined);
-  const { removeItems, visible } = props;
+  const { removeItems, visible, translations } = props;
 
   const openDeleteDialog = useCallback(
     (p: string, rowIndex: number) => {
@@ -63,16 +70,20 @@ export const MaterialArrayControlRenderer = (props: ArrayLayoutProps) => {
 
   return (
     <>
-      <MaterialTableControl {...props} openDeleteDialog={openDeleteDialog} />
+      <MaterialTableControl
+        {...props}
+        openDeleteDialog={openDeleteDialog}
+        translations={translations}
+      />
       <DeleteDialog
         open={open}
         onCancel={deleteCancel}
         onConfirm={deleteConfirm}
         onClose={deleteClose}
-        acceptText={props.translations.deleteDialogAccept}
-        declineText={props.translations.deleteDialogDecline}
-        title={props.translations.deleteDialogTitle}
-        message={props.translations.deleteDialogMessage}
+        acceptText={translations.deleteDialogAccept}
+        declineText={translations.deleteDialogDecline}
+        title={translations.deleteDialogTitle}
+        message={translations.deleteDialogMessage}
       />
     </>
   );
@@ -83,4 +94,6 @@ export const materialArrayControlTester: RankedTester = rankWith(
   or(isObjectArrayControl, isPrimitiveArrayControl)
 );
 
-export default withJsonFormsArrayLayoutProps(MaterialArrayControlRenderer);
+export default withJsonFormsArrayLayoutProps(
+  withTranslateProps(withArrayTranslationProps(MaterialArrayControlRenderer))
+);

packages/material-renderers/src/complex/MaterialTableControl.tsx

@@ -451,7 +451,8 @@ const TableRows = ({
 };
 
 export class MaterialTableControl extends React.Component<
-  ArrayLayoutProps & WithDeleteDialogSupport,
+  ArrayLayoutProps &
+    WithDeleteDialogSupport & { translations: ArrayTranslations },
   any
 > {
   addItem = (path: string, value: any) => this.props.addItem(path, value);