angular / angular/components

bug(CdkTextareaAutosize): Textarea does not scroll to active line

Abierto
#31,871 1 comentario 0 reacciones 0 asignados Ver en GitHub
area: cdk/text-field P3
Lenguaje dominante
TypeScript
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Forks
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Merge medio
1 d 8 h
PR fusionados (30 d)
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Descripción

### Is this a regression?

- [x] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

18

### Description

Hello,

Is there currently a solution or planned fix for this issue?

As described in [issue 30841](https://github.com/angular/components/issues/30841)
, when using the textarea with cdkTextareaAutosize, the component does not automatically scroll to keep the cursor in view once the content exceeds the maxRows. This makes the textarea very difficult to use.

The problem occurs on Google Chrome (but not in Firefox).

It appeared starting from Angular Material v19.

In v18, the behavior was correct: https://v18.material.angular.dev/cdk/text-field/overview

From v19 up to the current version, the bug is reproducible in Chrome: https://material.angular.dev/cdk/text-field/overview

Thank you for your help and clarification.

### Reproduction

StackBlitz link: https://stackblitz.com/edit/ozyjlswf?file=src%2Fexample%2Ftext-field-autosize-textarea-example.html
Steps to reproduce:
Using google Chrome:
1. start typing in the textarea (add lines pressing enter)
2. when more that 5 lines are added, cursor deapear and we are typing in the hidden part of the textarea (we don't see what we are typing anymore)

Do the same on Firefox:
- the textarea scrolls automatically to active line

### Expected Behavior

The textarea does not scroll automatically to the active line on google chrome

### Actual Behavior

The textarea should scroll automatically to the active line on all nagigators

### Environment

- Angular: 20
- CDK/Material: 20
- Browser(s): Google Chrome
- Operating System: Windows, macOS, Ubuntu

Guía de contribución

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Línea de trabajo

Reproduce el problema usando el ejemplo enlazado de StackBlitz en Chrome y, después, compara el comportamiento con Firefox y con los ejemplos de Angular Material v18 y v20. Escribe más de cinco líneas en el textarea y verifica que el cursor permanezca visible mientras escribes; la corrección estará completa cuando Chrome se desplace hasta la línea activa, igual que Firefox.

Escrito por el modelo de indexación a partir del texto del issue.

Evaluación

Stack tecnológico
angular, typescript
Área
frontend
Tipo de issue
Error
Dificultad
4/5
Tiempo estimado
3-5 días
Estado de actividad
Estancado
Claridad
Bastante claro
Aptitud para principiantes
42/100

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