Component children changed event

[ahmafi]

When I'm writing custom components, are there any events that trigger when another component or block gets dropped into my custom component?

In the docs, I saw only change:attributes and change:someprop events in the init method of model section. I tried change:components but it didn't do anything.

I want something like this:

export const plugin = (editor) => {
  editor.DomComponents.addType('my-component', {
    model: {
      defaults: {
        ...
        components: [<div class="col"></div>, <div class="col"></div>],
        ...
      },
    },

    init() {
      this.on('change:components', () => {
        // a component or block dropped into "my-component"
        console.log('something happened');
      });
    },
  });
};

I would also like to know if there are any other events than change:something in the component init hook.

[artf]

Did you try component:update:components?

[ahmafi]

Isn't this on the editor level? If I do editor.on('component:update:components', ...), then it will get called on every component, but I want to listen for changes only on this component that I'm defining.
Is there any event only for the current component?

[artf]

Yeah probably it's a bit confusing right now but this particular event (component:update:*) could be attached at the component level.