giliopoulos

Finally i found a working solution for me. So i drop a line here in case someone else finds it useful.

I read this https://iandunn.name/the-right-way-to-customize-a-wordpress-plugin/ guide, which describes the alternatives someone has, if he wants to override a plugin functionality.

In my case the solution was similar as the one described in the “Override their callbacks” section. I downloaded his example that overrides google-authenticator plugin and followed pretty much the same tactic.

Especially for the cm tooltp plugin that i wanted to customize removing the original hooks and re-adding them if my requirements are met worked for me.

remove_filter('the_content',array(CMTooltipGlossaryFrontend::$calledClassName, 'cmtt_glossary_parse'), 9999);
    remove_filter('the_content', array(CMTooltipGlossaryFrontend::$calledClassName, 'cmtt_glossary_createList'), 9998);
    remove_filter('the_content', array(CMTooltipGlossaryFrontend::$calledClassName, 'cmtt_glossary_addBacklink'), 10000);

and register my callback that enables again the original plugin functions if my requirements are met using the following code

//if (my_condition)
    add_filter('the_content', array(CMTooltipGlossaryFrontend::$calledClassName, 'cmtt_glossary_parse'), 9999);