From 9df4c98106866391fb34fc833ed2b3bbb0ec37bd Mon Sep 17 00:00:00 2001
From: Alexey Raksha <alexey@mailovka.ru>
Date: Mon, 29 Jan 2024 18:51:35 +0300
Subject: [PATCH] fix #11442 numpad decimal separator should support all
 keyboard layout

---
 .../inputnumber/inputnumber.spec.ts           | 38 ++++++++++++++++++-
 src/app/components/inputnumber/inputnumber.ts | 27 ++++++++-----
 2 files changed, 55 insertions(+), 10 deletions(-)

diff --git a/src/app/components/inputnumber/inputnumber.spec.ts b/src/app/components/inputnumber/inputnumber.spec.ts
index c8636c4b350..f0e105eebe4 100755
--- a/src/app/components/inputnumber/inputnumber.spec.ts
+++ b/src/app/components/inputnumber/inputnumber.spec.ts
@@ -6,11 +6,12 @@ import { Component } from '@angular/core';
 import { By } from '@angular/platform-browser';
 
 @Component({
-    template: `<p-inputNumber [(ngModel)]="val" [readonly]="readonly"></p-inputNumber>`
+    template: `<p-inputNumber [(ngModel)]="val" [readonly]="readonly" [minFractionDigits]="minFractionDigits"></p-inputNumber>`
 })
 class TestInputNumberComponent {
     val: number;
     readonly: boolean = true;
+    minFractionDigits = 2;
 }
 
 describe('InputNumber', () => {
@@ -35,4 +36,39 @@ describe('InputNumber', () => {
         const inputMaskEl = fixture.debugElement.query(By.css('input'));
         expect(inputMaskEl.nativeElement).toBeTruthy();
     });
+    describe('Numepad decimal', () => {
+        const pressFiveEvent = new KeyboardEvent('event', {
+            code: 'Digit5',
+            key: '5',
+            keyCode: '5'.charCodeAt(0)
+        });
+        const pressNumpadDecimalWithDotEvent = new KeyboardEvent('event', {
+            code: 'NumpadDecimal',
+            key: '.',
+            keyCode: '.'.charCodeAt(0)
+        });
+        const pressNumpadDecimalWithCommaEvent = new KeyboardEvent('event', {
+            code: 'NumpadDecimal',
+            key: ',',
+            keyCode: ','.charCodeAt(0)
+        });
+
+        beforeEach(() => {
+            testComponent.readonly = false;
+            testComponent.val = 0;
+            fixture.detectChanges();
+        });
+        it('should accept numpad dot as decimal separator', () => {
+            inputNumber.onInputKeyPress(pressFiveEvent);
+            inputNumber.onInputKeyPress(pressNumpadDecimalWithDotEvent);
+            inputNumber.onInputKeyPress(pressFiveEvent);
+            expect(testComponent.val).toEqual(5.5);
+        });
+        it('should accept numpad comma as decimal separator', () => {
+            inputNumber.onInputKeyPress(pressFiveEvent);
+            inputNumber.onInputKeyPress(pressNumpadDecimalWithCommaEvent);
+            inputNumber.onInputKeyPress(pressFiveEvent);
+            expect(testComponent.val).toEqual(5.5);
+        });
+    });
 });
diff --git a/src/app/components/inputnumber/inputnumber.ts b/src/app/components/inputnumber/inputnumber.ts
index 5238e77fe08..25faf7546f3 100644
--- a/src/app/components/inputnumber/inputnumber.ts
+++ b/src/app/components/inputnumber/inputnumber.ts
@@ -482,6 +482,8 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
 
     _decimal: any;
 
+    _decimalChar: string;
+
     _group: any;
 
     _minusSign: any;
@@ -554,6 +556,7 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
         this._minusSign = this.getMinusSignExpression();
         this._currency = this.getCurrencyExpression();
         this._decimal = this.getDecimalExpression();
+        this._decimalChar = this.getDecimalChar();
         this._suffix = this.getSuffixExpression();
         this._prefix = this.getPrefixExpression();
         this._index = (d: any) => index.get(d);
@@ -570,15 +573,16 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
     }
 
     getDecimalExpression(): RegExp {
+        const decimalChar = this.getDecimalChar();
+        return new RegExp(`[${decimalChar}]`, 'g');
+    }
+    getDecimalChar(): string {
         const formatter = new Intl.NumberFormat(this.locale, { ...this.getOptions(), useGrouping: false });
-        return new RegExp(
-            `[${formatter
-                .format(1.1)
-                .replace(this._currency as RegExp | string, '')
-                .trim()
-                .replace(this._numeral, '')}]`,
-            'g'
-        );
+        return formatter
+            .format(1.1)
+            .replace(this._currency as RegExp | string, '')
+            .trim()
+            .replace(this._numeral, '');
     }
 
     getGroupingExpression(): RegExp {
@@ -953,12 +957,17 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
 
         let code = event.which || event.keyCode;
         let char = String.fromCharCode(code);
-        const isDecimalSign = this.isDecimalSign(char);
+        let isDecimalSign = this.isDecimalSign(char);
         const isMinusSign = this.isMinusSign(char);
 
         if (code != 13) {
             event.preventDefault();
         }
+        if (!isDecimalSign && event.code === 'NumpadDecimal') {
+            isDecimalSign = true;
+            char = this._decimalChar;
+            code = char.charCodeAt(0);
+        }
 
         const newValue = this.parseValue(this.input.nativeElement.value + char);
         const newValueStr = newValue != null ? newValue.toString() : '';