Displaying category taxonomy and category ID on edit-tag.php

This is a tough one and a little unusual:

I wrote a plugin that is dependent on knowing if the site visiter is viewing a page or post and the specific ID of that page or post as well as the category ID if any.

When an admin is editing or adding a new post or page, I have added a meta box that displays certain plugin settings and the ability to turn one of the plugin settings on or off.

I use a single function each time the meta data needs to be displayed in one of the admin panels ( edit or add new post or page.)

Within my function I use get_post_type($post) and $post->ID to display something like this in the meta box if post “Post ID = 15” else “Page ID = 15”

This all works fine…but!

My function also shows up when you create a new category or edit an existing category but I am having problems getting the my function to work on edit-tag.php.

Problem:
I need to add a third case to my function that checks if is category and get category ID from the edit-tag.php page.

My function():
case 1 : if is post echo ‘Post ID = x’

case 2 : if is page echo ‘Page ID = x’

Case 3 : if is category echo ‘Category ID = x’

I have tried all kinds of WP taxonomy, tag and category functions but I cannot get them to work in the edit-tag.php page.

Solution:
I need to add case 3 into my function so that I can echo out the something like this:

case 3 :
if ( is category ) {
get category ID;
echo ‘Category ID =’ . $cat_ID;
}

…but case 3 needs to work under edit-tag.php