In some cases where multiple navigations happen to the same URL, the router will not process a given URL. In those cases, we fall into logic that resets state for the next navigation. One piece of this resetting is to set the `browserUrlTree` to the most recent `urlAfterRedirects`i.
However, there was bug in this logic because in some cases the `urlAfterRedirects` is a stale value. This happens any time a URL won't be processed, and the previous URL will also not be processed. This creates unpredictable behavior, not the least of which ends up being a broken `back` button.
This PR kicks off new navigations with the current value the router assumes is in the browser. All the logic around how to handle future navigations is based on this value compared to the current transition, so it's important to kick off all new navigations with the current value so in the edge case described above we don't end up with an old value being set into `browserUrlTree`.
Fixes#30340
Related to #30160
PR Close#30344
This PR fixes an issue where IE 11 can return `undefined` in with an `Object.keys` call. Solution is to add a runtime check on the value. Based on the types being passed, this shouldn't be necessary, but is needed only for IE 11. Unit test doesn't work for this PR because it can't be replicated easily.
PR Close#30393
There was a problem with a combination of the `eager` URL update, browser `back` button, and hybrid applications. Details provided in internal ticket http://b/123667227.
This fix handles the problem by setting `router.browserUrlTree` when all conditions have failed, meaning the browser doesn't do anything with the navigation other than update internal data structures. Without this change, the problem was an old value was stored in `router.broserUrlTree` causing some new navigations to be compared to an old value and breaking future navigations.
PR Close#30160
The proposed ES dynamic import() is now supported by the Angular CLI and the
larger toolchain. This renders the `loadChildren: string` API largely
redundant, as import() is far more natural, is less error-prone, and is
standards compliant. This commit deprecates the `string` form of
`loadChildren` in favor of dynamic import().
DEPRECATION:
When defining lazy-loaded route, Angular previously offered two options for
configuring the module to be loaded, both via the `loadChildren` parameter
of the route. Most Angular developers are familiar withthe `string` form of
this API. For example, the following route definition configures Angular to
load a `LazyModule` NgModule from `lazy-route/lazy.module.ts`:
```
[{
path: 'lazy',
loadChildren: 'lazy-route/lazy.module#LazyModule',
}]
```
This "magic string" configuration was previously necessary as there was
no dynamic module loading standard on the web. This has changed with the
pending standardization of dynamic `import()` expressions, which are now
supported in the Angular CLI and in web tooling in general. `import()`
offers a more natural and robust solution to dynamic module loading. The
above example can be rewritten to use dynamic `import()`:
```
[{
path: 'lazy',
loadChildren: () => import('./lazy-route/lazy.module').then(mod => mod.LazyModule),
}]
```
This form of lazy loading offers significant advantages in terms of:
* type checking via TypeScript
* simplicity of generated code
* future potential to run natively in supporting browsers
(see: [caniuse: dynamic import()](https://caniuse.com/#feat=es6-module-dynamic-import))
As a result, Angular is deprecating the `loadChildren: string` syntax in
favor of ES dynamic `import()`. An automatic migration will run during
`ng upgrade` to convert your existing Angular code to the new syntax.
PR Close#30073
Prior to this change, if a navigation was ongoing and a new one came in, the router could get into a state where `router.currentNavigation` was `null` even though a navigation was executing. This change moves where we set the `currentNavigation` value so it's inside a `switchMap`. This solves the problem because the `finally` on the `switchMap` had been setting `currentNavigation` to `null` but the new `currentNavigation` value would have already been set. Essentially this was a timing problem and is resolved with this change.
Fixes#29389#29590
PR Close#29636
clarify scrollPositionRestoration enabled to fully describe the functionality it provides. refactor app module example to compile and remove dependency on unnecessary framework. Remove component example due to bug on reload.
PR Close#29260
The router loadChildren property already supports a promise that returns a NgModuleFactory, but the typings cause the compilation to fail.
PR Close#29392
This PR also changes the name of `EmptyOutletComponent` to `ɵEmptyOutletComponent`. This is because `ngcc` requires the node to retain the original name while dts bundler will rename the node is it's only exported using the aliases.
Example typings files:
```ts
declare class EmptyOutletComponent {
}
export {EmptyOutletComponent as ɵEmptyOutletComponent}
```
will be emitted as
```ts
export declare class ɵEmptyOutletComponent {
}
```
PR Close#28833
* Use exclusively `TeamComponent` class for examples, as currently there are at least 3 different component classes being used, one of which is actually as a type argument for a `Resolve<T>` implementation.
PR Close#29093
The `setUpLocationSync` function in @angular/router/upgrade didn't previously let you sync hash-based navigations. With this change, you can now pass an option to `setUpLocationSync` that will make sure location changes run in Angular in hash-based apps.
Fixes#24429#21995
PR Close#28609
Since we build and publish the individual packages
using Bazel and `build.sh` has been removed, we can
safely remove the `rollup.config.js` files which are no
longer needed because the `ng_package` bazel rule
automatically handles the rollup settings and globals.
PR Close#28646
When a UrlTree of root url was returned by a guard as a redirection, the
navigation was not processed. The issue came from the error handler which
incorrectly marked the router as already navigated.
Fixes#27845
PR Close#28271
The value here is unimportant on initialization since it's not looked at until the second navigation. However, sometimes in testing the `Location` service is mocked out, or the Router constructor manually called. Assuming `Location` exists in the constructor leads to test failures in `google3` therefore we initialize to a value that will not cause errors.
PR Close#28376
With #27680, a bug was fixed where multiple redirects using `eager` URL update could cause navigation to fail. However, that fix introduced a problem where with `skipLocationChange` enabled, the URL tree rendered was not properly stored for reference. This specifically caused an issue with named router outlets and subsequent navigations not being recognized.
This PR stores the correct `UrlTree` for reference with later navigations. It fixes the regression introdued with #27680.
Fixes#28200
PR Close#28300
Previously when testing code injected the Compiler, it received the
top-level Compiler implementation defined in linker/compiler.ts
(and governed by the __PRE_R3__ switch). Code running under the
TestBed, however, should always use a TestBed-aware Compiler
implementation.
This commit adds such an implementation to the TestBedRender3,
which passes compiled modules through the _compileNgModule()
function.
With this change, 3 formerly disabled router integration tests
now pass.
FW-855 #resolve
PR Close#28033
* Interface that a class can implement to be a guard deciding if a children can be loaded.
'...if a children...' changed to '...if children...'
* Interface that a class can implement to be a guard deciding if children can be loaded.
PR Close#27894
Previously, we had the logic to schedule a change detection tick
inside markViewDirty(). This is fine when used in markDirty(),
the user-facing API, because it should always schedule change
detection. However, this doesn't work when used in markForCheck()
because historically markForCheck() does not trigger change
detection.
To be backwards compatible, this commit moves the scheduling
logic out of markViewDirty() and into markDirty(), so
markForCheck no longer triggers a tick.
PR Close#28048
Navigating to a route such as `/users`, you may get redirected to `/login`. Previously, if you go then route to `/users` again the URL will end up showing `/users` after the second redirect. This only happened in `UrlUpdateStrategy="eager"`. This is now fixed so after the second redirect, the URL shows the correct page.
Fixes#27116
PR Close#27523
This option means guards and resolvers will ignore changes when a provided predicate function returns `false`. This supports use cases where an application needs to ignore some param updates but not others. For example, changing a sort param in the URL might need to be ignored, whereas changing the a `project` param might require re-run of guards and resolvers.
Related to #26861#18253#27464
PR Close#27682
It looks like `fixmeIvy` imports were accidentally removed from Router integration tests, thus causing build errors. The necessary imports are now restored and the project should build normally.
PR Close#27720
`NgModule` requires that `Component`s/`Directive`s/`Pipe`s are listed in
declarations, and that each `Component`s/`Directive`s/`Pipe` is declared
in exactly one `NgModule`. This change adds runtime checks to ensure
that these sementics are true at runtime.
There will need to be seperate set of checks for the AoT path of the
codebase to verify that same set of semantics hold. Due to current
design there does not seem to be an easy way to share the two checks
because JIT deal with references where as AoT deals with AST nodes.
PR Close#27604
Navigating to a route such as `/users`, you may get redirected to `/login`. Previously, if you go then route to `/users` again the URL will end up showing `/users` after the second redirect. This only happened in `UrlUpdateStrategy="eager"`. This is now fixed so after the second redirect, the URL shows the correct page.
Fixes#27116
PR Close#27523
This commit enables the above test to run under --define=compile=aot.
To accomplish this, one import is rewritten from a strange form to the
correct absolute form.
FW-658 #resolve
PR Close#27483
This option means guards and resolvers will ignore changes to matrix parameters. Guards and resolvers will be rerun when the path changes, when path parameters change, or when query parameters change.
The primary use case for such a mode is when updating the UI and getting the URL to be in sync with local changes. For example, if displaying a sortable table, changing the sort direction is often handled by the table itself. But you would want to update the URL to be in sync with what's being displayed to the user. As long as the table sort direction is stored as a matrix parameter, you can use this option to update the URL without causing the overhead of re-running guards and resolvers.
Related to #26861#18253
PR Close#27464
(FW-777)
When an Injector is provided, R3Injector instantiates it by calling its
constructor instead of its factory, not resolving dependencies.
With this fix, the ngInjectorDef is checked and the factory is correctly
used if it is found.
PR Close#27456
BREAKING CHANGE:
The public API for `DebugNode` was accidentally too broad. This change removes
1. Public constructor. Since `DebugNode` is a way for Angular to communicate information
on to the developer there is no reason why the developer should ever need to
Instantiate the `DebugNode`
2. We are also removing `removeChild`, `addChild`, `insertBefore`, and `insertChildAfter`.
All of these methods are used by Angular to constructor the correct `DebugNode` tree.
There is no reason why the developer should ever be constructing a `DebugNode` tree
And these methods should have never been made public.
3. All properties have been change to `readonly` since `DebugNode` is used by Angular
to communicate to developer and there is no reason why these APIs should be writable.
While technically breaking change we don’t expect anyone to be effected by this change.
PR Close#27223
This option means guards and resolvers will ignore changes to optional
parameters such as query and matrix params. When the path or any path
params change, guards and resolvers will be run
Related to discussion in #18253
FW-560 #resolve
PR Close#26861
* Removed `andObservable` helper function in favor of inline implementation
* Flow `boolean | UrlTree` through guards check
* Add tests to verify behavior of `checkGuards` function flowing `UrlTree` properly
PR Close#26521
Jason Aden
Frederik Prijck
Alex Rickabaugh
Trevor Karjanis
Ben Lesh
Brandon
Filipe Silva
Judy Bogart
ijz953
Greg Magolan
Adam Plumer
Alan
José Toledo Navarro
Maxim Mazurok
Wassim Chegham
Sarun Intaralawan
Paul Gschwendtner
Pawel Kozlowski
stoneLeaf
kevinphelps
William Neely
Alex Eagle
Kara Erickson
Igor Minar
Karanveer Plaha
Marc Laval
Miško Hevery
Matias Niemelä
Andrew Kushnir
cexbrayat
Alex Eagle
miginmrs
Andrew Lobban
Pete Bacon Darwin