Support roundingMode for InputNumber (#4946)

components/lib/inputnumber/BaseInputNumber.vue

@@ -78,6 +78,23 @@ export default {
             type: Number,
             default: undefined
         },
+        roundingMode: {
+            type: String,
+            default: 'halfExpand',
+            validator(value) {
+                return [
+                    'ceil',
+                    'floor',
+                    'expand',
+                    'trunc',
+                    'halfCeil',
+                    'halfFloor',
+                    'halfExpand',
+                    'halfTrunc',
+                    'halfEven'
+                ].includes(value);
+            }
+        },
         min: {
             type: Number,
             default: null

components/lib/inputnumber/InputNumber.d.ts

@@ -14,6 +14,17 @@ import { InputTextPassThroughOptions } from '../inputtext';
 import { PassThroughOptions } from '../passthrough';
 import { ClassComponent, GlobalComponentConstructor, Nullable, PassThrough } from '../ts-helpers';
 
+export declare type RoundingMode = 
+    | 'ceil'
+    | 'floor'
+    | 'expand'
+    | 'trunc'
+    | 'halfCeil'
+    | 'halfFloor'
+    | 'halfExpand'
+    | 'halfTrunc'
+    | 'halfEven';
+
 export declare type InputNumberPassThroughOptionType<T = any> = InputNumberPassThroughAttributes | ((options: InputNumberPassThroughMethodOptions<T>) => InputNumberPassThroughAttributes | string) | string | null | undefined;
 
 /**
@@ -232,6 +243,11 @@ export interface InputNumberProps {
      * the default for currency formatting is the larger of minimumFractionDigits and the number of minor unit digits provided by the [ISO 4217 currency code](https://www.six-group.com/en/products-services/financial-information/data-standards.html#scrollTo=maintenance-agency) list (2 if the list doesn't provide that information).
      */
     maxFractionDigits?: number | undefined;
+    /**
+     * How decimals should be rounded.
+     * The default value is `"halfExpand"`, [further information](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat#roundingmode).
+     */
+    roundingMode?: RoundingMode;
     /**
      * Mininum boundary value.
      */

components/lib/inputnumber/InputNumber.vue

@@ -181,7 +181,8 @@ export default {
                 currencyDisplay: this.currencyDisplay,
                 useGrouping: this.useGrouping,
                 minimumFractionDigits: this.minFractionDigits,
-                maximumFractionDigits: this.maxFractionDigits
+                maximumFractionDigits: this.maxFractionDigits,
+                roundingMode: this.roundingMode,
             };
         },
         constructParser() {
@@ -225,7 +226,7 @@ export default {
         },
         getCurrencyExpression() {
             if (this.currency) {
-                const formatter = new Intl.NumberFormat(this.locale, { style: 'currency', currency: this.currency, currencyDisplay: this.currencyDisplay, minimumFractionDigits: 0, maximumFractionDigits: 0 });
+                const formatter = new Intl.NumberFormat(this.locale, { style: 'currency', currency: this.currency, currencyDisplay: this.currencyDisplay, minimumFractionDigits: 0, maximumFractionDigits: 0, roundingMode: this.roundingMode });
 
                 return new RegExp(`[${formatter.format(1).replace(/\s/g, '').replace(this._numeral, '').replace(this._group, '')}]`, 'g');
             }
@@ -247,7 +248,7 @@ export default {
             if (this.suffix) {
                 this.suffixChar = this.suffix;
             } else {
-                const formatter = new Intl.NumberFormat(this.locale, { style: this.mode, currency: this.currency, currencyDisplay: this.currencyDisplay, minimumFractionDigits: 0, maximumFractionDigits: 0 });
+                const formatter = new Intl.NumberFormat(this.locale, { style: this.mode, currency: this.currency, currencyDisplay: this.currencyDisplay, minimumFractionDigits: 0, maximumFractionDigits: 0, roundingMode: this.roundingMode });
 
                 this.suffixChar = formatter.format(1).split('1')[1];
             }