Prior to this commit, the `patchValue()` of the `FormGroup` and `FormArray` classes used to throw an exception
when the `value` argument contained a data structure that has `null` or `undefined` as a value for a field
that represents an instance of `FormGroup` or `FormArray` (for `FormControl` it's not a problem, since it
doesn't have nested controls), since the `patchValue()` method tried to iterate over provided values to
match current data structure.
This commit updates the `patchValue()` logic in `FormGroup` and `FormArray` classes to just ignore `null` and
`undefined` values (without any changes to corresponding `FormGroup` and `FormArray` instances). This
behavior looks inline with the `patchValue()` method goal of "doing its best to match the values to the
correct controls" (quote from docs).
Fixes#36672.
Fixes#21021.
PR Close#40534
PR #39235 introduced additional cleanup logic for form controls and directives. The cleanup logic relies
on the presence of ControlValueAccessor instances on FormControlName and FormControl directives. In general
these fields are present and there are also checks to make sure that the mentioned directive instances are
created with CVAs. However some scenarios (primarily tests) may invoke the logic in a way that the directive
instance would not be fully initialized, thus causing CVA to be absent. As a result, the cleanup logic fails
while trying to call some methods on associated CVA instances.
This commit updates the cleanup logic to take into account the situation when CVA is not present.
Fixes#40521.
PR Close#40526
When a form is reset, it goes through `_forEachChild` to call `reset` on each of its children.
The problem is that if a control is removed while the loop is running (e.g. by a subscription),
the form will throw an error, because it built up the list of available control before the loop
started.
These changes fix the issue by adding a null check before invoing the callback.
Fixes#33401.
PR Close#40462
The `NgControlStatusGroup` directive is shared between template-driven and reactive form modules. In cases when
only reactive forms module is present, the `NgControlStatusGroup` directive is still activated on all `<form>`
elements, but if there is no other reactive directive applied (such as `formGroup`), corresponding `ControlContainer`
token is missing, thus causing exceptions (since `NgControlStatusGroup` directive relies on it to determine the
status). This commit updates the logic to handle the case when no `ControlContainer` is present (effectively making
directive logic a noop in this case).
Alternative approach (more risky) worth considering in the future is to split the `NgControlStatusGroup` into
2 directives with different set of selectors and include them into template-driven and reactive modules separately.
The downside is that these directives might be activated simultaneously on the same element (e.g. `<form>`),
effectively doing the work twice.
Resolves#38391.
PR Close#40344
Prior to this commit, removing `FormControlDirective` and `FormGroupName` directive instances didn't clear
the callbacks previously registered on FromControl/FormGroup class instances. As a result, these callbacks
were executed even after `FormControlDirective` and `FormGroupName` directive instances were destroyed. That was
also causing memory leaks since these callbacks also retained references to DOM elements.
This commit updates the cleanup logic to take care of properly detaching FormControl/FormGroup/FormArray instances
from the view by removing view-specific callback at destroy time.
Closes#20007, #37431, #39590.
PR Close#39235
The value of a `FormControl` is treated in a special way (called boxed values) when it's an object with exactly
2 fields: `value` and `disabled`. This commit adds a test which verifies that an object is not treated as a boxed
value when `disabled` field is present, but `value` is missing.
PR Close#39801
Currently when an instance of the `FormControlName` directive is destroyed, the Forms package invokes
the `cleanUpControl` to clear all directive-specific logic (such as validators, onChange handlers,
etc) from a bound control. The logic of the `cleanUpControl` function should revert all setup
performed by the `setUpControl` function. However the `cleanUpControl` is too aggressive and removes
all callbacks related to the onChange and disabled state handling. This is causing problems when
a form control is bound to multiple FormControlName` directives, causing other instances of that
directive to stop working correctly when the first one is destroyed.
This commit updates the cleanup logic to only remove callbacks added while setting up a control
for a given directive instance.
The fix is needed to allow adding `cleanUpControl` function to other places where cleanup is needed
(missing this function calls in some other places causes memory leak issues).
PR Close#39623
Prior to this commit, the `cleanUpControl` function (responsible for cleaning up control instance)
was not taking validators into account. As a result, these validators remain registered on a detached
form control instance, thus causing memory leaks. This commit updates the `cleanUpControl` function
logic to also run validators cleanup.
As a part of this change, the logic to setup and cleanup validators was refactored and moved to
separate functions (with completely opposite behavior), so that they can be reused in the future.
This commit doesn't add the `cleanUpControl` calls to all possible places, it just fixes the cases
where this function is being called, but doesn't fully perform a cleanup. The `cleanUpControl`
function calls will be added to other parts of code (to avoid more memory leaks) in a followup PR.
PR Close#39234
This commit refactors validators-related logic that is common across most of the directives.
A couple notes on this refactoring:
* common logic was moved to the `AbstractControlDirective` class (including `validator` and
`asyncValidator` getters)
* sync/async validators are now composed in `AbstractControlDirective` class eagerly when validators
are set with `_setValidators` and `_setAsyncValidators` calls and the result is stored in directive
instance (thus getters return cached versions of validator fn). This is needed to make sure composed
validator function remains the same (retains its identity) for a given directive instance, so that
this function can be added and later removed from an instance of an AbstractControl-based class
(like `FormControl`). Preserving validator function is required to perform proper cleanup (in followup
PRs) of the AbstractControl-based classes when a directive is destroyed.
PR Close#38280
Prior to this change, the `validators` and `asyncValidators` fields of a few Forms directives
were typed as `any[]`. This commit updates the types and makes them consistent for all directives
in the Forms package.
BREAKING CHANGE:
Directives in the `@angular/forms` package used to have `any[]` as a type of `validators` and
`asyncValidators` arguments in constructors. Now these arguments are properly typed, so if your
code relies on directive constructor types it may require some updates to improve type safety.
PR Close#38944
This commit ensures that the `updateValueAndValidity` method takes the
`asyncValidator` into consideration to emit on the `statusChanges` observables.
This is necessary so that any subsequent changes are emitted properly to any
subscribers.
Closes#20424Closes#14542
BREAKING CHANGE:
Previously if FormControl, FormGroup and FormArray class instances had async validators
defined at initialization time, the status change event was not emitted once async validator
completed. After this change the status event is emitted into the `statusChanges` observable.
If your code relies on the old behavior, you can filter/ignore this additional status change
event.
PR Close#38354
This commit performs minor refactoring in Forms package to get rid of duplicate functions.
It looks like the functions were duplicated due to a slightly different type signatures, but
their logic is completely identical. The logic in retained functions remains the same and now
these function also accept a generic type to achieve the same level of type safety.
PR Close#38371
A util file is added to forms test package:
- it exposes simpleAsyncValidator, asyncValidator and asyncValidatorReturningObservable validators
- it refactors simpleAsyncValidator and asyncValidator to use common promise creation code
- it exposes currentStateOf allowing to get the validation state of a list of AbstractControl
Closes#37831
PR Close#38020
This commit refactors the way we store validators in AbstractControl-based classes:
in addition to the combined validators function that we have, we also store the original list of validators.
This is needed to have an ability to clean them up later at destroy time (currently it's problematic since
they are combined in a single function).
The change preserves backwards compatibility by making sure public APIs stay the same.
The only public API update is the change to the `AbstractControl` class constructor to extend the set
of possible types that it can accept and process (which should not be breaking).
PR Close#37881
Previously, `registerOnChange` used `hasOwnProperty` to identify if the
property is supported. However, this does not work as the `selectedOptions`
property is an inherited property. This commit fixes this by verifying
the property on the prototype instead.
Closes#37433
PR Close#37620
introduce a boolean to track form groups/arrays own pending async validation to distinguish between pending state due to children and pending state due to own validation
Fixes#10064
PR Close#22575
Prior to this commit, number input fields would to fire valueChanges twice: once for `input` events when typing and second for the `change` event when the field lost focus (both events happen at once when using the increment and decrement buttons on the number field).
Fixes#12540
BREAKING CHANGE: Number inputs no longer listen to the `change` event.
* Tests which trigger `change` events need to be updated to trigger `input` events instead.
* The `change` event was in place to support IE9, as we found that `input` events were not fired with backspace or cut actions. If you need to maintain IE9 support, you will need to add a change event listener to number inputs and call the `onChange` method of `NumberValueAccessor` manually.
* Lastly, old versions of WebDriver would synthetically trigger the `change` event on `WebElement.clear` and `WebElement.sendKeys`. If you are using an old version of WebDriver, you may need to update tests to ensure `input` events are triggered. For example, you could use `element.sendKeys(Keys.chord(Keys.CONTROL, "a"), Keys.BACK_SPACE);` in place of `element.clear()`.
PR Close#12540
PR Close#36087
Previously, the behavior of the `minLength` and `maxLength` validators
caused confusion, as they appeared to work with numeric values but
did not in fact produce consistent results. This commit fixes the issue
by skipping validation altogether when a numeric value is used.
BREAKING CHANGES:
* The `minLength` and `maxLength` validators now verify that a value has
numeric `length` property and invoke validation only if that's the case.
Previously, falsey values without the length property (such as `0` or
`false` values) were triggering validation errors. If your code relies on
the old behavior, you can include other validators such as [min][1] or
[requiredTrue][2] to the list of validators for a particular field.
[1]: https://angular.io/api/forms/Validators#min
[2]: https://angular.io/api/forms/Validators#requiredTrueCloses#35591
PR Close#36157
The major one that affects the angular repo is the removal of the bootstrap attribute in nodejs_binary, nodejs_test and jasmine_node_test in favor of using templated_args --node_options=--require=/path/to/script. The side-effect of this is that the bootstrap script does not get the require.resolve patches with explicitly loading the targets _loader.js file.
PR Close#34736
The major one that affects the angular repo is the removal of the bootstrap attribute in nodejs_binary, nodejs_test and jasmine_node_test in favor of using templated_args --node_options=--require=/path/to/script. The side-effect of this is that the bootstrap script does not get the require.resolve patches with explicitly loading the targets _loader.js file.
PR Close#34589
Currently we only run Saucelabs on PRs using the legacy View Engine
build. Switching that build to Ivy is not trivial and there are various
options:
1. Updating the R3 switches to use POST_R3 by default. At first glance,
this doesn't look easy because the current ngtsc switch logic seems to
be unidirectional (only PRE_R3 to POST_R3).
2. Updating the legacy setup to run with Ivy. This sounds like the easiest
solution at first.. but it turns out to be way more complicated. Packages
would need to be built with ngtsc using legacy tools (i.e. first building
the compiler-cli; and then building packages) and View Engine only tests
would need to be determined and filtered out. Basically it will result in
re-auditing all test targets. This is contradictory to the fact that we have
this information in Bazel already.
3. Creating a new job that runs tests on Saucelabs with Bazel. We specify
fine-grained test targets that should run. This would be a good start
(e.g. acceptance tests) and also would mean that we do not continue maintaining
the legacy setup..
This commit implements the third option as it allows us to move forward
with the general Bazel migration. We don't want to spend too much time
on our legacy setup since it will be removed anyway in the future.
PR Close#34277
This commit fixes a compatibility bug where pre-order lifecycle
hooks (onInit, doCheck, OnChanges) for directives on the same
host node were executed based on the order the directives were
matched, rather than the order the directives were instantiated
(i.e. injection order).
This discrepancy can cause issues with forms, where it is common
to inject NgControl and try to extract its control property in
ngOnInit. As the NgControl directive is injected, it should be
instantiated before the control value accessor directive (and
thus its hooks should run first). This ensures that the NgControl
ngOnInit can set up the form control before the ngOnInit
for the control value accessor tries to access it.
Closes#32522
PR Close#34026
This is a breaking change in nodejs rules 0.40.0 as part of the API review & cleanup for the 1.0 release. Their APIs are identical as ts_web_test was just karma_web_test without the config_file attribute.
PR Close#33802
Removes the deprecated `ngForm` element selector and all of the code related to it.
BREAKING CHANGES:
* `<ngForm></ngForm>` can no longer be used as a selector. Use `<ng-form></ng-form>` instead.
* The `NgFromSelectorWarning` directive has been removed.
* `FormsModule.withConfig` has been removed. Use the `FormsModule` directly.
PR Close#33058
Fixes all TypeScript failures caused by enabling the `--strict`
flag for test source files. We also want to enable the strict
options for tests as the strictness enforcement improves the
overall codehealth, unveiled common issues and additionally it
allows us to enable `strict` in the `tsconfig.json` that is picked
up by IDE's.
PR Close#30993
This method is a more convenient and efficient way of removing all
components from a FormArray. Before it, we needed to loop the FormArray
removing each component until empty.
Resolves#18531
PR Close#28918
BREAKING CHANGE
Previous to this change, when a control was reset, value and status change
events would be emitted before the control was reset to pristine. As a
result, if one were to check a control's pristine state in a valueChange
listener, it would appear that the control was still dirty after reset.
This change delays emission of value and status change events until after
controls have been marked pristine. This means the pristine state will be
reset as expected if one checks in a listener.
Theoretically, there could be applications depending on checking whether a
control *used to be dirty*, so this is marked as breaking. In these cases,
apps should cache the state on the app side before calling reset.
Fixes#28130
PR Close#28395
Andrew Kushnir
Kristiyan Kostadinov
Krivokhizhin Anton
Sonu Kapoor
JiaLiPassion
Oussama Ben Brahim
Joey Perrott
Alan Agius
Tidi
Greg Magolan
Paul Gschwendtner
atscott
Kara Erickson
Miško Hevery
Igor Minar
Renan Montebelo
Artem Lanovyy
Martin Sikora