Add the implementation of a Template Check that ensures the correct
use of two-way binding syntax. Generates a warning when
'([foo])="bar"' is found instead of '[(foo)]="bar"'.
Refs #42966
PR Close#42984
Specifically: narrow the type used for form statuses from string to a union of possible statuses. Change the API methods from any to use the new type.
This is a breaking change. However, as discussed in the PR, breakage seems minimal, and google3 has been prepped to land this.
Background: we uncovered these any typings in the course of design work for typed forms. They could be fixed in a non-breaking manner by piggybacking them on top of the new typed forms generics, but it would be much cleaner to fix them separately if possible.
BREAKING CHANGE:
A new type called `FormControlStatus` has been introduced, which is a union of all possible status strings for form controls. `AbstractControl.status` has been narrowed from `string` to `FormControlStatus`, and `statusChanges` has been narrowed from `Observable<any>` to `Observable<FormControlStatus>`. Most applications should consume the new types seamlessly. Any breakage caused by this change is likely due to one of the following two problems: (1) the app is comparing `AbstractControl.status` against a string which is not a valid status; or, (2) the app is using `statusChanges` events as if they were something other than strings.
PR Close#42952
Currently if a view throws an error during creation mode, we mark it as `incompleteFirstPass` so that we can try to recover later. The recovery is only possible inside component views.
The problem is that when this was introduced, I forgot to flip the `firstCreatePass` when an error is thrown which meant that calling `renderView` on the same component again is allowed. It will eventually hit an assertion which can be confusing for the end user. This issue only manifests itself when rendering views "manually" through `ViewContainerRef` (e.g. using `NgIf`).
These changes flip the `firstCreatePass` back to false on errors so that trying to re-render the same view will throw an error which is consistent to the one that broke the view during creation.
Fixes#41383.
PR Close#43005
Several new functionalities are possible with this change: the most requested is that callers can now check whether a control has a required validator. Other uses include incrementally changing the validators set without doing an expensive operation to reset all validators.
Closes#13461.
PR Close#42838
If the validator is bound to be `null` then no validation occurs and
attribute is not added to DOM.
For every validator type different PR will be raised as discussed in
https://github.com/angular/angular/pull/42378.
Closes#42267.
PR Close#42565
In #41995 the type of `TrackByFunction` was changed such that the
declaration of a `trackBy` function did not cause the item type to be
widened to the `trackBy`'s item type, which may be a supertype of the
iterated type. This has introduced situations where the template type
checker is now reporting errors for cases where a `trackBy` function is
no longer assignable to `TrackByFunction`.
This commit fixes the error by also including the item type `T` in
addition to the constrained type parameter `U`, allowing TypeScript to
infer an appropriate `T`.
Fixes#42609
PR Close#42692
This commit expands the info printed to the console to help diagnose
ServiceWorker issues to include the [internal debug info][1] retrieved
from `/ngsw/state`. This will provide more useful data, such as the
activated SW's version, state, clients, recent operations and any recent
errors.
NOTE:
This temporarily increases the payload size. Removing this code and
reclaiming the payload size is being tracked in #41117.
[1]: https://angular.io/guide/service-worker-devops#locating-and-analyzing-debugging-information
PR Close#42776
Update `@angular/*` packages to latest 12.1.x versions (mainly to take
advantage of recent ServiceWorker improvements, such as #42607
and #42622).
PR Close#42776
This commit updates the payload sizes for angular.io to make it easier
to identify payload size changes from an imminent update of `@angular/*`
packages.
PR Close#42776
Given we have updated API extractor to the most recent
version, we need to update the API goldens because the
latest version uses alias exports to avoid collisions with
default library globals (like `Event`).
PR Close#42737
xi18n is the operation of extracting i18n messages from templates in the
compilation. Previously, only View Engine was able to perform xi18n. This
commit implements xi18n in the Ivy compiler, and a copy of the View Engine
test for Ivy verifies that the results are identical.
PR Close#42485
Previously, the `NotificationComponent` would be hidden by reducing its
height to `0`. This allowed for a smoother hide animation when closing
the notification, but left the component's interactive elements
focusable via keyboard navigation. This was confusing for users, because
the focused elements would not be visible on the page.
This commit fixes the issue be also setting the `display` CSS property
to `none` when the `NotificationComponent` is hidden, thus ensuring that
its contents are not focusable via keyboard navigation.
(This does not affect the hide animation, since the `display` style is
not animatable and is only applied at the end of the animation.)
PR Close#42584
Previously, we included a dummy `MatIcon` element in `AppComponent` in
order to ensure that the `Material Icons` font would be requested (and
thus cached by the ServiceWorker) on every navigation. However, #41129
introduced the `ThemeToggleComponent`, which will be present on all
pages (since it is located in the top-menu) and relies on the
`Material Icons` font. Therefore, the work-around for loading the
`Material Icons` font is no longer necessary.
This commit removes the now redundant `MatIcon` from `AppComponent`.
PR Close#42584
This commit changes the anchor elements used for external links to
`MatIconButton`s. While the appearance remains the same (with the
exception of hover/focus styles), this better aligns the styling of
external link icons with other nearby icon buttons (i.e. the theme
toggle) and alows as to simplify the CSS for external links (since much
of their styling is handled by Angular Material).
PR Close#42584
Since we now use SVG for external link icons, there are no `<img>`
elements inside the anchor elements. So, the CSS rule does not match any
element and can be removed.
PR Close#42584
Previously, we only tracked the sizes of the eagerly loaded JS bundles.
However, the CSS styles (which also have a non-negligible size) must
also be downloaded and parsed by the browser, thus affecting the initial
rendering time.
This commit starts tracking the CSS styles payload sizes.
(Originally discussed in
https://github.com/angular/angular/pull/42584#discussion_r653787961)
PR Close#42584
To avoid having content files that have the same file path on case-insensitive
file-systems, we now encode the paths to remove uppercase characters.
PR Close#42414
We currently have two long-standing issues related to how `TestBed` tests are torn down:
1. The dynamically-created test module isn't going to be destroyed, preventing the `ngOnDestroy` hooks on providers from running and keeping the component `style` nodes in the DOM.
2. The test root elements aren't going to be removed from the DOM. Instead, they will be removed whenever another test component is created.
By themselves, these issues are easy to resolve, but given how long they've been around, there are a lot of unit tests out there that depend on the broken behavior.
These changes address the issues by introducing APIs that allow users to opt into the correct test teardown behavior either at the application level via `TestBed.initTestEnvironment` or the test suite level via `TestBed.configureTestingModule`.
At the moment, the new teardown behavior is opt-in, but the idea is that we'll eventually make it opt-out before removing the configuration altogether.
Fixes#18831.
PR Close#42566
This commit adds a popup to angular.io to inform the user about the use
of cookies. Once the user confirms having read the info, the popup will
not be shown on subsequent visits.
This commit is partly based on angular/material.angular.io#988.
Fixes#42209
PR Close#42259
Previously, we had the same logic in a couple of places to safely access
the `Window`'s `local-/sessionStorage` and provide a no-op fallback if
necessary. Soon, we will need the same logic for the cookies popup
(see #42209).
This commit reduces code duplication by providing
`local-/sessionStorage` as injectables and sharing the logic for
accessing them safely. This also makes it easier to mock the storage in
tests without having to mess with the actual `Window` object.
NOTE:
This commit actually decreases the payload size in the `main` bundle by
40B.
PR Close#42259
This commit aligns the angular.io config files more closely to how a
newly generated CLI v12 app would look like. This helps validate the
setup and makes it easier to apply new chages in the future (by
preventing the angular.io layout from deviating too much from the
default new app layout).
PR Close#42259
We can’t determine whether the user actually meant the `back` or
the `forward` using the popstate event (triggered by a browser
back/forward)
so we instead need to store information on the state and compute the
distance the user is traveling withing the browser history.
So by using the `History#go` method,
we can bring the user back to the page where he is supposed to be after
performing the action.
implementation for #13586
PR Close#38884
Close#41867
In the previous commit https://github.com/angular/angular/pull/41562#issuecomment-822696973,
the error thrown in the event listener will be caught and re-thrown, but there is a bug
in the commit, if there is only one listener for the specified event name, the error
will not be re-thrown, so this commit fixes the issue and make sure the error is re-thrown.
PR Close#41868
As previously discussed in pull/31070 and issues/30486, this would be useful because it is often desirable to apply styles to fields that are both `ng-invalid` and `ng-pristine` after the first attempt at form submission, but Angular does not provide any simple way to do this (although evidently Angularjs did). This will now be possible with a descendant selector such as `.ng-submitted .ng-invalid`.
In this implementation, the directive that sets control status classes on forms and formGroups has its set of statuses widened to include `ng-submitted`. Then, in the event that `is('submitted')` is invoked, the `submitted` property of the control container is returned iff it exists. This is preferred over checking whether the container is a `Form` or `FormGroup` directly to avoid reflecting on those classes.
Closes#30486.
PR Close#42132.
This reverts commit 00b1444d12, undoing the rollback of this change.
PR Close#42132
A subsequent commit is going to change disambiguated URLs.
This commit prepares the AIO application to attempt the new URLs
if the old URLs fail. This will help to mitigate problems that may occur
during the period between deployment of the new version and the
service-worker not being updated.
PR Close#42509
This is based on a discussion we had a few weeks ago. Currently if a component uses `ViewEncapsulation.ShadowDom` and its selector doesn't meet the requirements for a custom element tag name, a vague error will be thrown at runtime saying something like "Element does not support attachShadowRoot".
These changes add a new diagnostic to the compiler that validates the component selector and gives a better error message during compilation.
PR Close#42245
As previously discussed in pull/31070 and issues/30486, this would be useful because it is often desirable to apply styles to fields that are both `ng-invalid` and `ng-pristine` after the first attempt at form submission, but Angular does not provide any simple way to do this (although evidently Angularjs did). This will now be possible with a descendant selector such as `.ng-submitted .ng-invalid`.
In this implementation, the directive that sets control status classes on forms and formGroups has its set of statuses widened to include `ng-submitted`. Then, in the event that `is('submitted')` is invoked, the `submitted` property of the control container is returned iff it exists. This is preferred over checking whether the container is a `Form` or `FormGroup` directly to avoid reflecting on those classes.
Closes#30486.
PR Close#42132
When a `trackBy` function is used that accepts a supertype of the iterated
array's type, the loop variable would undesirably be inferred as the supertype
instead of the array's item type. This commit adds an inferred type parameter
to `TrackByFunction` to allow an extra degree of freedom, enabling the
loop value to be inferred as the most narrow type.
Fixes#40125
PR Close#41995
This commit fixes the state of variable _started on call of reset method.
Earlier behaviour was on call of `reset()` method we are not setting back
`_started` flag's value to false and it created various issue for end user
which were expecting this behaviour as per name of method.
We provided end user `reset()` method, but it was empty method and on call
of it wasn't doing anything. As end user/developer were not able to
reuse animation not animation after call of reset method.
In this PR on call of `reset()` method we are setting flag `_started` value to false
which can be accessed by `hasStarted()`.
Resolves#18140
PR Close#41608
It is important to use the correct major version of the Angular CLI when
following the examples in the tutorials. This commit provides a custom
element that renders an appropriate dist-tag in the setup step of
the tutorial when the docs are not in "stable" mode.
Fixes#39821
PR Close#41991
adding optional body for HTTP delete request options. This new param added as an optional so won't break the existing code also provide the capability the send the body when and where it required.
PR Close#41723
Makes the following improvements to the listener instructions to make them slightly smaller and more memory-efficient.
1. Removes the default value from the `useCapture` parameter since it generates more code than just castint to `false`.
2. Removes the `useCapture` and `eventTargetResolver` parameters from `ɵɵsyntheticHostListener` since they won't be generated by the compiler, as far as I can tell.
3. Makes it so that we don't have to return a target name from a `GlobalTargetResolver`. This allows us to save on some memory, because we can return a reference to the target without having to wrap it in an object literal.
DEPRECATIONS:
`EventManagerPlugin.getGlobalEventTarget` is now deprecated and won't be called from Ivy code anymore. Global events will go through `addEventListener`.
PR Close#41807
Currently we save a reference to an `LView` on most DOM nodes created by Angular either by saving
the `LView` directly in the `__ngContext__` or by saving the `LContext` which has a reference to
the `LView`. This can be a problem if the DOM node is retained in memory, because the `LView` has
references to all of the child nodes of the view, as well as other internal data structures.
Previously we tried to resolve the issue by clearing the `__ngContext__` when a node is removed
(see https://github.com/angular/angular/pull/36011), but we decided not to proceeed, because it can
slow down destruction due to a megamorphic write.
These changes aim to address the issue while reducing the performance impact by assigning a unique
ID when an `LView` is created and adding it to `__ngContext__`. All active views are tracked in
a map where their unique ID is used as the key. We don't need to worry about leaks within that map,
because `LView`s are an internal data structure and we have complete control over when they are
created and destroyed.
Fixes#41047.
PR Close#41358
Currently we have a lot of places where we repeat the type `Type<T>|AbstractType<T>|InjectionToken<T>` which makes it cumbersome to add another type or to type something else with the same signature.
These changes add a new type that can be used instead.
Fixes#39792.
PR Close#41580
YuCheng Hu
Daniel Trevino
Dylan Hunn
Kristiyan Kostadinov
atscott
Pete Bacon Darwin
Steven Masala
iRealNirmal
JoostK
George Kalpakas
Paul Gschwendtner
Alex Rickabaugh
Ahmed Ayed
JiaLiPassion
Jessica Janiuk
Andrew Scott
AleksanderBodurri
Gopal Jayaraman
Ben Lesh
Alan Agius