Add onBeforeRender and onAfterRender as array of callbacks

I suggest adding onBeforeRender and onAfterRender as callbacks for Presenter, as startup and shutdown have their callbacks. Another reasson for this is, if I use traits to add lets say Translator, or Ajaxifier for requests, i can`t add some stuff that is called only if render is called by trait, but need to modify presenter.

Right now, if i add trait, i need to modify presenter to know, that some code need to be called in beforeRender, so trait is not possible to use stand-alone without modification of code. Callbacks will solve this, so lets say translatorAware trait can simply have

<?php
injectTranslator(Translator $translator){
	$this->translator = $translator;
	$this->onBeforeRender[] = function()use($translator){
		$this->template->setTranslator($translator);
	}
}
?>

and can be used directly without modifications of configs, without modification of presenter itself… onAfterRender should be added to be consistent.

You can do this by custom presenter prototype, but i belive this should be part of presenter itself.

Last edited by bckp (2019-04-24 14:54)