Angular Dart component events - events

Question

I am trying to pass custom events from a component to its parent component/controller
confirm.html
<div class="comfirm-component">
<content></content>
Yes
No
</div>
confirm.dart
#Component(
selector: "confirm-component",
templateUrl: 'confirm.html',
useShadowDom: false,
publishAs: "ctrl"
)
class ConfirmComponent {
void yes(){
print('yes');
// Fire confirm-yes event
}
void no(){
print('no');
// Fire confirm-no event
}
}
is there something like this?:
<confirm-component on-confirm-yes="doSomething()" on-confirm-no="doSomethingElse()">
Do you want to delete
</confirm-component>
I could use a normal StreamController but then i'd had to connect my components with code.
confirmComponent.onConfirmYes.listen()
confirmComponent.onConfirmNo.listen()
I also found this:
How to communicate between Angular DART controllers
And this:
angulardart components - dispatch custom event
In both treads scope.emit is mentioned. But i didn't find a way to use it with a component instead of a controller. Is there a full example vor angular.dart v0.14.0?
Is scope.emit the thing i'm searching for?

Answer 1

This should be the same, just add a scope argument to the constructor so the component gets the scope injected.
There was a related change in Angular 0.14.0 https://github.com/angular/angular.dart/commit/181f01448555c475869505491159045904e5dc89
I haven't yet tried this.
From the description you need to implement ScopeAware
#Component(...)
class MyComponent implements ScopeAware {
Watch watch;
MyComponent(Dependency myDep) {
// It is an error to add a Scope / RootScope argument to the ctor and will result in a DI
// circular dependency error - the scope is never accessible in the class constructor
}
void set scope(Scope scope) {
// with this scope you should be able to use emit
// This setter gets called to initialize the scope
watch = scope.rootScope.watch("expression", (v, p) => ...);
}
}

Answer 2

Based on the answer from Günter i built this working example:
#Component(
selector: "confirm-component",
templateUrl: 'component/confirm.html',
useShadowDom: false,
publishAs: "ctrl"
)
class ConfirmComponent implements ScopeAware {
Scope scope;
void yes(){
scope.emit('confirm', 'yes');
}
void no(){
scope.emit('confirm', 'no');
}
}
#Component(
selector: "my-component",
templateUrl: 'component/my.html',
useShadowDom: false,
publishAs: "ctrl"
)
class MyComponent implements ScopeAware{
void set scope(Scope scope) {
Stream mystream = scope.on('confirm');
mystream.listen((event){
print('confirmed: ' + event.data);
});
}
}