Allow custom implementation of base Controller

[ryanitus]

I would like to provide my own implementation of the underlying controller, so I can process my own code when an action like "render()" is called.

The ControllersEnhancer is essential to a proper functioning Controller, but it's hard coded to only work for play.mvc.Controller:

    if (field.getDeclaringClass().getName().equals("play.mvc.Controller") || field.getDeclaringClass().getName().equals("play.mvc.WebSocketController")) {

If this could be made more generic, I could provide my own implementation, so rather than controllers extending play.mvc.Controller, I could extend MyController instead. I've verified it works locally by changing .equals("play.mvc.Controller") to .startsWith("play.mvc.").

[asolntsev]

@ryanitus I agree with you.
I suggest to create a "marker" interface like PlayController, so that

• play.mvc.Controller implements PlayController
• YourCustomController implements PlayController

Can you prepare a pull request, or do you need my help?

[asolntsev]

Hi @ryanitus !
I have prepared pull request for your suggestion: #1102
Could you review it?
Does it solve your problem?