Expose onFocus to custom components

[b97822302002]

Is your feature request related to a problem? Please describe.
We are using the editComponent attribute for customize the input, but failed to trigger the onFocus event

Describe the solution you'd like
Just like the title said, expose the onFocus to the custom components should work, we have a patch for this

Describe alternatives you've considered
No

Additional context
No

[b97822302002]

#131