Files
Brandy Carney 76abf2778b refactor(input): remove legacy property and support for legacy syntax (#29017)
Issue number: internal

---------

## What is the current behavior?

In Ionic Framework v7, we [simplified the input
syntax](https://ionic.io/blog/ionic-7-is-here#simplified-form-control-syntax)
so that it was no longer required to be placed inside of an `ion-item`.
We maintained backwards compatibility by adding a `legacy` property
which allowed it to continue to be styled properly when written in the
following way:

```html
<ion-item>
  <ion-label>Label</ion-label>
  <ion-input></ion-input>
</ion-item>
```

While this was supported in v7, console warnings were logged to notify
developers that they needed to update this syntax for the best
accessibility experience.

## What is the new behavior?

- Removes the `legacy` property and support for the legacy syntax.
Developers should follow the [migration
guide](https://ionicframework.com/docs/api/input#migrating-from-legacy-input-syntax)
in the input documentation to update their apps. The new syntax requires
a `label` or `aria-label` on `ion-input`:
    ```html
    <ion-item>
      <ion-input label="Label"></ion-input>
    </ion-item>
    ```
- Removes the legacy tests under under `input/test/legacy/` and all
related screenshots
- Removes the input usage from `item/test/a11y`, `item/test/counter`,
`item/test/disabled`, `item/test/highlight`,
`item/test/legacy/alignment`, `item/test/legacy/disabled`,
`item/test/legacy/fill`, and `item/test/legacy/form` and all related
screenshots if the test was removed

## Does this introduce a breaking change?

- [x] Yes
- [ ] No

1. Developers have had console warnings when using the legacy syntax
since the v7 release. The migration guide for the new input syntax is
outlined in the [Input
documentation](https://ionicframework.com/docs/api/input#migrating-from-legacy-input-syntax).
2. This change has been documented in the Breaking Changes document with
a link to the migration guide.

BREAKING CHANGE:

The `legacy` property and support for the legacy syntax, which involved
placing an `ion-input` inside of an `ion-item` with an `ion-label`, have
been removed from input. For more information on migrating from the
legacy input syntax, refer to the [Input
documentation](https://ionicframework.com/docs/api/input#migrating-from-legacy-input-syntax).

---------

Co-authored-by: ionitron <hi@ionicframework.com>
2024-02-13 12:43:22 -05:00
..
2024-02-07 11:48:46 -05:00
2024-02-07 14:20:32 +00:00
2024-02-07 14:20:32 +00:00

@ionic/angular

Ionic Angular specific building blocks on top of @ionic/core components.

License

Testing ng-add in ionic

  1. Pull the latest from main
  2. Build ionic/angular: npm run build
  3. Run npm link from ionic/angular/dist directory
  4. Create a blank angular project
ng new add-test
// Say yes to including the router, we need it
cd add-test
  1. To run schematics locally, we need the schematics-cli (once published, this will not be needed)
npm install @angular-devkit/schematics-cli
  1. Link @ionic/angular
npm link @ionic/angular
  1. Run the local copy of the ng-add schematic
$ npx schematics @ionic/angular:ng-add

You'll now be able to add ionic components to a vanilla Angular app setup.

Project Structure

common

This is where logic that is shared between lazy loaded and standalone components live. For example, the lazy loaded IonPopover and standalone IonPopover components extend from a base IonPopover implementation that exists in this directory.

Note: This directory exposes internal APIs and is only accessed in the standalone and src submodules. Ionic developers should never import directly from @ionic/angular/common. Instead, they should import from @ionic/angular or @ionic/angular/standalone.

standalone

This is where the standalone component implementations live. It was added as a separate entry point to avoid any lazy loaded logic from accidentally being pulled in to the final build. Having a separate directory allows the lazy loaded implementation to remain accessible from @ionic/angular for backwards compatibility.

Ionic developers can access this by importing from @ionic/angular/standalone.

src

This is where the lazy loaded component implementations live.

Ionic developers can access this by importing from @ionic/angular.