Cdk Drag Item With Boundaries Breaks on Touch Screen Pinch
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Descripción
### Which @angular/* package(s) are the source of the bug?
Don't known / other
### Is this a regression?
No
### Description
Go to your website to this link: https://angular.dev/guide/drag-drop#restrict-movement-within-an-element on a touch screen device
1. Go to the cdkDrag item with the boundaries.
2. Start a pinch motion with one finger on the drag item and one outside
3. Try a few times because it does work every time
4. Observe the cdkDrag item float out of the area
### Please provide a link to a minimal reproduction of the bug
https://angular.dev/guide/drag-drop#restrict-movement-within-an-element
### Please provide the exception or error you saw
```true
This error on every touch move event
[Intervention] Ignored attempt to cancel a touchmove event with cancelable=false, for example because scrolling is in progress and cannot be interrupted.
```
### Please provide the environment you discovered this bug in (run `ng version`)
```true
Angular CLI: 20.3.20
Node: 22.14.0
Package Manager: npm 10.9.2
OS: win32 x64
Angular: 20.3.18
... animations, common, compiler, compiler-cli, core, forms
... language-service, localize, platform-browser, router
Package Version
---------------------------------------
@angular-devkit/architect 0.2003.20
@angular-devkit/build-angular 20.3.20
@angular-devkit/core 20.3.20
@angular-devkit/schematics 20.3.20
@angular/build 20.3.20
@angular/cdk 20.2.14
@angular/cli 20.3.20
@angular/material 20.2.14
@schematics/angular 20.3.20
ng-packagr 20.3.2
rxjs 7.8.2
typescript 5.9.3
zone.js 0.15.1
```
### Anything else?
_No response_
Guía de contribución
Línea de trabajo
Comienza con el ejemplo de Angular CDK drag-drop en angular.dev/guide/drag-drop#restrict-movement-within-an-element y reproduce el problema en una pantalla táctil usando el gesto de pellizco descrito. Rastrea el manejo de touchmove del elemento arrastrable y la intervención cancelable=false; se considera terminado cuando el elemento permanece dentro de sus límites durante el gesto sin producir el error indicado.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Stack tecnológico
- angular, typescript
- Área
- frontend
- Tipo de issue
- Error
- Dificultad
- 3/5
- Tiempo estimado
- 1-2 días
- Estado de actividad
- Tranquilo
- Claridad
- Bastante claro
- Aptitud para principiantes
- 45/100