Now, using `ng.probe(element)` in the browser console returns
a DebugElement when in dev mode.
`ComponentFixture#debugElement` also returns a new DebugElement.
Breaking Change:
This is a breaking change for unit tests. The API for the DebugElement
has changed. Now, there is a DebugElement or DebugNode for every node
in the DOM, not only nodes with an ElementRef. `componentViewChildren` is
removed, and `childNodes` is a list of ElementNodes corresponding to every
child in the DOM. `query` no longer takes a scope parameter, since
the entire rendered DOM is included in the `childNodes`.
Before:
```
componentFixture.debugElement.componentViewChildren[0];
```
After
```
// Depending on the DOM structure of your component, the
// index may have changed or the first component child
// may be a sub-child.
componentFixture.debugElement.children[0];
```
Before:
```
debugElement.query(By.css('div'), Scope.all());
```
After:
```
debugElement.query(By.css('div'));
```
Before:
```
componentFixture.debugElement.elementRef;
```
After:
```
componentFixture.elementRef;
```
BEFORE:
The following would throw in the dev mode because `f` would return a new array when called by checkNoChanges.
@Component({
template: `
{{f()}}
`
})
class A {
f() { return [1]; }
}
AFTER:
The checkNoChanges function compares only primitives types for equality, and deeply compares iterables. Other objects cannot cause checkNoChanges to throw. This means that the dev mode would never fail given a legal program, but may allow some illegal programs.
This is needed to prevent memory leaks. The DOM
listeners don’t need to be removed for simple examples,
but a big internal app shows memory leaks because of them.
BREAKING CHANGE:
- `Renderer.listen` now has to return a function that
removes the event listener.
BREAKING CHANGE:
- Platform pipes can only contain types and arrays of types,
but no bindings any more.
- When using transformers, platform pipes need to be specified explicitly
in the pubspec.yaml via the new config option
`platform_pipes`.
- `Compiler.compileInHost` now returns a `HostViewFactoryRef`
- Component view is not yet created when component constructor is called.
-> use `onInit` lifecycle callback to access the view of a component
- `ViewRef#setLocal` has been moved to new type `EmbeddedViewRef`
- `internalView` is gone, use `EmbeddedViewRef.rootNodes` to access
the root nodes of an embedded view
- `renderer.setElementProperty`, `..setElementStyle`, `..setElementAttribute` now
take a native element instead of an ElementRef
- `Renderer` interface now operates on plain native nodes,
instead of `RenderElementRef`s or `RenderViewRef`s
Closes#5993
This changes the public api spec to check each public barrel individually
to make sure its API has not changed. The previous API spec has been
preserved but split into respective barrels.
The compiler barrel has been added to the spec, along with all of its
public exports. Previously, angular2/angular2 was only exporting a
handful of symbols from compiler, so there are now many more symbols
being tested in the spec for compiler than previously.
Part of #5710Closes#5841
Supercedes #5821
In the browser, calling element.textContent causes child comment
nodes to be ignored, while getting textContent directly on a
comment node will return the comment. This change makes
parse5Adapter consistent with this behavior by adding a 2nd
argument to getText telling if it's being called recursively.
Closes#5805
This is used for setting property binding values as attributes
on elements when running in dev mode. This implementation will
also serialize binding information to template placeholder
comment nodes.
Closes#5227
BREAKING CHANGE:
`<whatever />` used to be expanded to `<whatever></whatever>`.
The parser now follows the HTML5 spec more closely.
Only void and foreign elements can be self closed.
Closes#5591
BREAKING CHANGE
End tags used to be tolerated for void elements with no content.
They are no more allowed so that we more closely follow the HTML5 spec.
BREAKING CHANGE:
You can no longer bootstrap a WebWorker or Isolate using `bootstrap` or `bootstrapWebWorker`. Instead you have to do the following:
In TypeScript:
```TypeScript
// index.js
import {WORKER_RENDER_PLATFORM, WORKER_RENDER_APPLICATION, WORKER_SCRIPT} from "angular2/platforms/worker_render";
import {platform} from "angular2/platform";
platform([WORKER_RENDER_PLATFORM])
.application([WORKER_RENDER_APPLICATION, new Provider(WORKER_SCRIPT, {useValue: "loader.js"});
```
```JavaScript
// loader.js
importScripts("https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.33.3/es6-shim.js", "https://jspm.io/system@0.16.js", "angular2/web_worker/worker.js");
System.import("app");
```
```TypeScript
// app.ts
import {Component, View} from "angular2/core";
import {WORKER_APP_PLATFORM, setupWebWorker} from "angular2/platforms/worker_app";
import {platform} from "angular2/platform";
@Component({
selector: "hello-world"
})
@View({
template: "<h1>Hello {{name}}</h1>
})
export class HelloWorld {
name: string = "Jane";
}
platform([WORKER_APP_PLATFORM])
.asyncApplication(setupWebWorker, optionalProviders?)
.then((ref) => ref.bootstrap(RootComponent));
```
In Dart:
```Dart
// index.dart
import "angular2/platform.dart";
import "angular2/platforms/worker_render.dart";
main() {
platform([WORKER_RENDER_PLATFORM])
.asyncApplication(initIsolate("my_worker.dart"));
}
```
```Dart
// background_index.dart
import "angular2/platform.dart";
import "angular2/platforms/worker_app.dart";
import "package:angular2/src/core/reflection/reflection.dart";
import "package:angular2/src/core/reflection/reflection_capabilities.dart";
@Component(
selector: "hello-world"
)
@View(
template: "<h1>Hello {{name}}</h1>"
)
class HelloWorld {
String name = "Jane";
}
main(List<String> args, SendPort replyTo) {
reflector.reflectionCapabilities = new ReflectionCapabilities();
platform([WORKER_APP_PLATFORM])
.asyncApplication(setupIsolate(replyTo))
.then((ref) => ref.bootstrap(RootComponent));
}
```
You should no longer import from the `angular2/web_worker/worker` and `angular2/web_worker/ui` paths. Instead you can now import directly from core, directives, etc..
The WebWorkerApplication class has been removed. If you want to use ServiceMessageBroker or ClientMessageBroker on the render thread, you must inject their factories via DI.
If you need to use the MessageBus on the render thread you must also obtain it through DI.
closes#3277closes#5473Closes#5519
Change beforeEachBindings to beforeEachProviders but preserve the
@deprecated method beforeEachBindings, in order to keep a working
deprecation warning
BREAKING CHANGE:
Previously, pipes that wanted to be notified when they were destroyed
would implement the PipeOnDestroy interface and name the callback
`onDestroy`. This change removes the PipeOnDestroy interface and
instead uses Angular's lifecycle interface `OnDestroy`, with the
`ngOnDestroy` method.
Before:
```
import {Pipe, PipeOnDestroy} from 'angular2/angular2';
@Pipe({pure: false})
export class MyPipe implements PipeOnDestroy {
onDestroy() {}
}
```
After:
import {Pipe, OnDestroy} from 'angular2/angular2';
@Pipe({pure: false})
export class MyPipe implements PipeOnDestroy {
ngOnDestroy() {}
}
BREAKING CHANGE:
Previously, components that would implement lifecycle interfaces would include methods
like "onChanges" or "afterViewInit." Given that components were at risk of using such
names without realizing that Angular would call the methods at different points of
the component lifecycle. This change adds an "ng" prefix to all lifecycle hook methods,
far reducing the risk of an accidental name collision.
To fix, just rename these methods:
* onInit
* onDestroy
* doCheck
* onChanges
* afterContentInit
* afterContentChecked
* afterViewInit
* afterViewChecked
* _Router Hooks_
* onActivate
* onReuse
* onDeactivate
* canReuse
* canDeactivate
To:
* ngOnInit,
* ngOnDestroy,
* ngDoCheck,
* ngOnChanges,
* ngAfterContentInit,
* ngAfterContentChecked,
* ngAfterViewInit,
* ngAfterViewChecked
* _Router Hooks_
* routerOnActivate
* routerOnReuse
* routerOnDeactivate
* routerCanReuse
* routerCanDeactivate
The names of lifecycle interfaces and enums have not changed, though interfaces
have been updated to reflect the new method names.
Closes#5036
A quoted expression is:
quoted expression = prefix `:` uninterpretedExpression
prefix = identifier
uninterpretedExpression = arbitrary string
Example: "route:/some/route"
Quoted expressions are parsed into a new AST node type Quote. The `prefix` part of the
node must be a legal identifier. The `uninterpretedExpression` part of the node is an
arbitrary string that Angular does not interpret.
This feature is meant to be used together with template AST transformers introduced in
a43ed79ee7. The
transformer would interpret the quoted expression and convert it into a standard AST no
longer containing quoted expressions. Angular will continue compiling the resulting AST
normally.
BREAKING CHANGE
Before
import * as p from 'angular2/profile';
import * as t from 'angular2/tools';
After
import * as p from 'angular2/instrumentation';
import * as t from 'angular2/platform/browser';
