Adds additional handling for input types that handle numbers:
- number
- range
- datetime-local
As well as input types that handle dates:
- date
- month
- week
- time
- *not* datetime-local which does not allow setting valueAsDate
This PR allows binding either a `Field<string>` or `Field<number>` to
the number type inputs and a `Field<string>`, `Field<numebr>`, or
`Field<Date | null>` to the date type inputs. Binding uses the
corresponding `.value`, `.valueAsNumber`, or `.valueAsDate` according to
the type of the `Field`.
When reading new values out of the input, the `Control` directive will
read the property that aligns with the type of the existing value in the
`Field` and write back the same type.
PR Close#63585
This allows passing errors and disabled reasons that did not originate
from `@angular/forms/signals` in case the the control is being used
separately from the forms system
PR Close#63455
This commit introduces an experimental version of a new signal-based forms API for Angular. This new API aims to explore how signals can be leveraged to create a more declarative, intuitive, and reactive way of handling forms.
The primary goals of this new signal-based approach are:
* **Signal-centric Design:** Place signals at the core of the forms experience, enabling a truly reactive programming model for form state and logic.
* **Declarative Logic:** Allow developers to define form behavior, such as validation and conditional fields, declaratively using TypeScript. This moves logic out of the template and into a typed, testable schema.
* **Developer-Owned Data Model:** The library does not maintain a copy of data in a form model, but instead read and write it via a developer-provided `WritableSignal`, eliminating the need for applications to synchronize their data with the form system.
* **Interoperability:** A key design goal is seamless interoperability with existing reactive forms, allowing for incremental adoption.
* **Bridging Template and Reactive Forms:** This exploration hopes to close the gap between template and reactive forms, offering a unified and more powerful approach that combines the best aspects of both.
This initial version of the experimental API includes the core building blocks, such as the `form()` function, `Field` and `FieldState` objects, and a `[control]` directive for binding to UI elements. It also introduces a schema-based system for defining validation, conditional logic, and other form behaviors.
Note: This is an early, experimental API. It is not yet complete and is subject to change based on feedback and further exploration.
Co-authored-by: Kirill Cherkashin <kirts@google.com>
Co-authored-by: Alex Rickabaugh <alxhub@users.noreply.github.com>
Co-authored-by: Leon Senft <leonsenft@users.noreply.github.com>
Co-authored-by: Dylan Hunn <dylhunn@gmail.com>
Co-authored-by: Michael Small <michael-small@users.noreply.github.com>
PR Close#63408
