Tell child directive to act after a parent directive has done DOM actions?
问题 Let's say we have some nested directives: <big-poppa> <baby-bird></baby-bird> </big-poppa> And let's say that big-poppa wants to create a component that all of his children directives can share. It would be nice to put it in the controller, but this component needs the DOM, so it needs to be build in the link function. Then let's say the baby-bird component wants to read from component. Maybe it wants to listen to events from it, maybe send it a command or two. The challenge is that