This commit adds the support for defer block in the Angular DevTools.
@defer block are now visible in the directive tree and give access to defer & hydration details.
This feature also brings support of incrementation hydration.
PR Close#60629
- Highlight only the matched part of the text
- Select the first match by default
- Show the matches count along with the currently selected one
- Minor UI fixes and performance optimizations
PR Close#60672
`ng.getDirectiveMetadata` receives the component instance, not the raw DOM element.
This assumes that `ng.getComponent` is implemented in all environments and that the root element itself is a component.
PR Close#60991
This moves the commit step to the start of the process and releases after merging it. This has two key benefits:
1. The commit history now reflects the actual release (ex. any DevTools commits before the release commit are actually included in that release). Previously the changes in a release were dictated by the release PR branch, which is an ephemeral target. Other PRs may be merged to `main` before the release PR, and those changes would not be included in that DevTools release.
2. We can now compute a changelog based on this more accurate history.
The downside to this change is that release PRs are now blocking releases in a way they weren't before (which is likely desirable in the grand scheme of things), meaning we need to be more diligent about merging them in a timely manner.
I added a short script for listing DevTools commits since the last release, taking advantage of the more accurate commit history. This should make changelog generation a lot easier, even if there's still a manual process of rewriting the commit message into a line item in release notes.
Also made a few minor cleanup changes such as escaping the markdown in the suggested reviewer note so it can be more easily copy-pasted from the rendered format of this doc.
PR Close#60646
Currently, highlighting works only when a directive explorer node is hovered. The change enables this feature on node selection as well.
PR Close#60744
This is a follow-up to the recent devtools linking change, leveraging
the dedicated package that we are also using in the components
repository; avoiding future duplication.
The latest version of that package contains a fix for an issue where
the linked bundles did not rewrite imports to shared chunks.
Such imports need to also point to their linked variants.
PR Close#60822
Previously the `frameUrl` option in `chrome.devtools.inspectedWindow.eval` would throw errors when used in Firefox, preventing inspect source functionality for firefox users even if they don't need to target a particular frame on the page (they are on the top level frame with Angular DevTools).
Now this behaviour is as follows:
Firefox user that has the top level frame selected -> DevTools inspect functionality works as expected.
Firefox user that has a non-top level frame selected -> DevTools now renders a snackbar message informing the user of the limitation.
PR Close#60430
This updates the DevTools protocol to send Wiz/ACX metadata in addition to Angular metadata. Fortunately we don't need to worry about backwards compatibility here (`framework` is required for example), but the design roughly mirrors `DirectiveDebugMetadata` in `@angular/core`.
Beyond that, this is mostly plumbing through an extra data slice in the form of `props` provided by Wiz. An earlier version implemented `events` as their own slice as well, but was removed as there is currently no generic way to disambiguate events from any other form of callback passed in as a prop. Instead, event callbacks are visualized as functions under the "Props" category.
Working with `DirectiveMetadata` as a union is unfortunately a bit annoying since it requires casting to more specific `{Angular,Acx,Wiz}DirectiveMetadata` types for TS to allow property access, even when the properties are optional anyways.
This commit is mostly for adding Wiz, but does add a bit of ACX functionality which is not fully tested.
PR Close#60475
This type was incorrect, as only components have `encapsulation` and `onPush` values. `ng.getDirectiveMetadata` does not return these properties for directive inputs.
Unfortunately the `| Partial<AngularComponentDebugMetadata>` is necessary to reference these properties or else TypeScript will reject their usage.
PR Close#60475
This allows `ng.getDirectiveMetadata` to be implemented by Wiz and ACX with subtly different shapes to match the nuances of those frameworks.
Existing usage of `{Component,Directive}DebugMetadata` was moved over to `Angular{Component,Directive}DebugMetadata` as appropriate, since the implementation of `ng` in `@angular/core` is specific to Angular. Only the types support Wiz and ACX.
I opted to merge `ComponentDebugMetadata` and `DirectiveDebugMetadata` into a single type of all the frameworks including both components and directives (recall that components extend directives). The reasoning for this is because Wiz does not support directives (you can kind of think of "Wiz Directive" as an abstract class extended by "Wiz Components"). I felt that a `DirectiveDebugMetadata` containing only Angular and ACX types would be a bit of a trap and lead to bugs when used. It's safer to just have the single type containing all the possible results from `ng.getDirectiveMetadata`.
I also chose to leave the `ng` type as is internally, since `@angular/core` implements a specific concrete version of it narrowed to Angular types. Separately I defined an expanded `FrameworkAgnosticGlobalUtils` which redefines `ng.getDirectiveMetadata` to include Wiz and ACX. We want this type to exist in the Angular GitHub repo so it can be referenced as a common primitive across all three frameworks. This is sufficient for now, however longer term we will likely want to actually manually define the function types in this framework-agnostic interface and make Angular's version properly implement it rather than extend and overwrite Angular's type.
PR Close#60475
Extract all colors from the stylesheets, reduce their number by merging the similar ones and organize them into themes represented by CSS variables.
PR Close#60374
This commit fixes the linking of CDK/Material which recently broke
because the CDK/Material package now comes with potential shared FESM
chunks; that our current hard-coded, manual linking process doesn't know
about. This ultimately resulted in duplicate code, breaking
Material/CDK.
This commit fixes that.
In addition to the fix, we simplify our linking significantly and reduce
the rather large complexity around linking, or having to specify every
entry-point manually, by linking the full package and putting it into
a different location. This is also what we conceptually are doing in
Angular Material as part of the `rules_js` migration.
PR Close#60516
Angular DevTools now supports mutating objects underneath signals in the property explorer view.
This is done by performing an "immutable update" by recursively copying objects underneath a signal and overwriting the one property specified. For example, if the user attempted to set `foo.bar.baz[2].hello = 'world'` and `bar` was a signal, this would effectively become:
```typescript
foo.bar.set({
...foo.bar(),
baz: [
...foo.bar().baz.slice(0, 2),
{
...foo.bar().baz[2],
hello: 'world',
},
...foo.bar().baz.slice(3),
],
})
```
The motivation for immutable updates is because signals and Angular change detection don't really like interior mutability of signal values. If we didn't do this, any kind of comparison or dirty check would prevent the UI from updating. If an application attempts to change a deeply nested property inside a signal, it doesn't work today. DevTools should generally be limited to operations an application could do itself, and the recommended approach to make such a change like this is an immutable update. Creating entirely new objects intentionally breaks referential equality such that the application can properly react to the change.
Unfortunately, it is not possible to make immutable updates in a truly generic sense. You can't just copy a class for instance `({...new MyFoo()}).doSomething()`. We could do something fancier like manually copying over the prototype or something like that, but there is no way to do this without breaking class semantics (ex. the class might reasonably rely on the constructor being called). Therefore we instead reject any mutations to non-primitive objects. In the future, we might expand the set of "primitives" to include other built-ins and well-known objects like `URL` or `Element`, but those are out of scope for now.
I opted to ban mutating the result of a readonly/computed signal. While the mutation is likely to succeed, a subsequent rerun of the `computed` will immediately drop the change. However, I opted to allow mutating the result of a getter property. This has a similar problem because it might be returning a synthetic object which will be invalidated on the next execution, but it is possible and reasonable for a getter to return the same object multiple times such that a mutation may reasonably survive other updates. DevTools can't easily know whether a getter actually will return the same object on each execution or not, so we optimistically assume the reference is stable. If it isn't, the mutation will be lost whenever the getter is re-executed.
PR Close#60381
Sometimes `forest` can be empty if the provided roots are empty, and was leading to a "Cannot read `resolutionPath` of `undefined`" error. Now we check the forest has a tree in it before looking up `resolutionPath`.
There might be a separate issue with the fact that the backend script likely shouldn't be emitting an empty forest in the first place. However we already check that a resolution path exists at all, so I think it's fair to also check that a tree was provided. We can separately look into making sure the backend is emitting valid data.
PR Close#60403
See associated pull request for more information.
Closes#59956 as a pr takeover, `@angular/build-tooling` has been rolled back as due to missing `@aspect_rules_js`.
PR Close#60387
The main goal of this change is to remove `categoryOrder` which effectively hard-codes the supported length of `panels`. Adding another item to `panels` is not rendered unless that is added to `categoryOrder`.
My solution to this is to make the set of categories a signal, with each category able to produce the data inside it. This allow `CdkDragDrop` to rearrange categories but then still produce the correct data in the template without needing a separate array to track order.
Also removed `hidden` and inlined it in the template, since the logic was the same for every panel.
`moveItemInArray` is unfortunately an in-place move, so I needed to manually clone the array to ensure `panels` observes an immutable update which works better with signals and change detection.
PR Close#60286
These links aren't that helpful in the context of Angular DevTools for a few reasons:
1. Users of the extension should already have a general understanding of core Angular concepts, inputs and outputs included.
2. The input and output links go to API documentation which isn't useful for someone who doesn't actually understand the core concepts anyways.
3. These links point to signals documentation even though DevTools shows non-signal inputs and outputs.
4. Properties linked to template binding docs, which doesn't *really* have anything to do with the plain JS properties being shown in DevTools anyways.
PR Close#60284
Previously, if `ng.getDirectives` was not implemented, Angular DevTools won't throw when attempting to load the component tree. Now it safely ignores the function and assumes no directives exist on the page.
PR Close#60209
In general, we can't assume all applications implement the full `ng` contract as many are older Angular application which pre-date the current interface. As a result, it is safer to type this as a `Partial`.
For now, I just added non-null assertions at all current usage locations, as we do generally feature detect before using these fields. However, hopefully this `Partial` type will make it harder to accidentally call a function which might not be supported.
PR Close#60209
Previously Angular DevTools would throw when run on an application which does not support `getInjector`, now it safely ignores it and assumes dependency injection is not supported.
PR Close#60206
Previously this was throwing errors in applications with no Router token.
Now it skips emitting events for the router tree when it is unable to find the Router token.
Note: If these events don't emit, DevTools treats the RouterTree feature as disabled.
PR Close#60221
