Title: Widget Logic / Widget Context replacing callback
Last modified: August 20, 2016

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# Widget Logic / Widget Context replacing callback

 *  [digitalnature](https://wordpress.org/support/users/digitalnature/)
 * (@digitalnature)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/)
 * This post here is addressed to the developers of these widgets, which do not 
   seem to properly replace the widget callback.
 * There are many properties missing, very important ones, like `option_name` or`
   id_base`. This makes them incompatible with any other plugin that handles widgets
   and uses these properties.
 * Right now, to access them you must explicitly check `callback_wl_redirect` or`
   callback_original_wc` …
 * I hope this gets fixed in future versions

Viewing 15 replies - 1 through 15 (of 15 total)

 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219843)
 * Would you mind giving a slightly longer explanation of the issue. cheers.
 *  [nk111](https://wordpress.org/support/users/nk111/)
 * (@nk111)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219899)
 * [@digitalnature](https://wordpress.org/support/users/digitalnature/):
 * Thank you so much for your post! I had issues with widget logic and a Yootheme
   theme where some widgets looked strange because after I installed Widget Logic.
 * You are right. The replacement of the whole callback array was the cause. So 
   i fixed this by replacing the callback property again after Widget Logic does
   it evals…
 * like this:
 *     ```
       $wp_registered_widgets[$id]['callback'] = $callback;
       call_user_func_array($callback,params); // if so callback with original params!
       ```
   
 * This solved my theme issues!
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219900)
 * I think i understand nk111’s point, but I’m still not at all clear on the original
   post here (‘many properties missing’?), and would love to know what I’m missing.
 * re nk111, what cause is there for restoring the callback property – and where
   are you doing it – in widget logic at the end of the widget_logic_redirected_callback
   function?
 * NB, i’ve just been looking at the (wp-includes/widgets.php) current dynamic_sidebar
   function and I think I see a new cleaner way to do widget logic using the dynamic_sidebar_params
   filter – which I’m SURE didn’t exist when I first started out!
 *  [nk111](https://wordpress.org/support/users/nk111/)
 * (@nk111)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219901)
 * The original poster meant that the callback property of the widgets gets replaced.
   Therefore other plugins which want to access that property (which is an array
   which doesn’t only store the callback function!) might fail afterwards.
 * Exactly that happend to me. My themes widgets did not work properly with widget
   logic activated.
 * So thats why i restore the callback property after widgets logics condition check
   and everything works!
 * And yes… this should be done in widget-logic-redirected-callback.
 *  Thread Starter [digitalnature](https://wordpress.org/support/users/digitalnature/)
 * (@digitalnature)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219902)
 * Well I ran into this issue when developing the same type of functionality that
   these plugins do.
 * And I didn’t need to override any callbacks. Just hook your widget visibility
   checking function to the `widget_display_callback` filter, and return false if
   the widget should not be visible on the current page, the $instance array otherwise.
 * Your forms go inside `in_widget_form` (and `widget_update_callback` for updating
   your options).
 * I don’t see why do you have to interfere with the widget properties, like the
   callback.
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219903)
 * wow. widget_display_callback ! when did that turn up?!
 * holy, I am learning a lot here thanks – i’ve certainly been letting the grass
   grow under my feet on this.
 * “which is an array which doesn’t only store the callback function!”
 * really, i thought it could only be a function or an array of (object, method 
   name).
 * anyway, actual work is all but over, and a new simpler widget logic using the
   widget_display_callback filter is in the offing!
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219904)
 * hmm, maybe I’m getting ahead of myself. It looks like there are old and new style
   coded widgets, and that the old-style that don’t use the WP_Widget class won’t
   touch that filter.
 * however I think I can switch to using dynamic_sidebar_params instead of wp_head
   to sub in the intercepted callback, and then replace it shortly after, which 
   should minimise WL’s interference.
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219905)
 * looking good. got rid of the reliance on wp_head, and the code only changes the
   callback property for the duration of the dynamic_sidebar call. when i’ve done
   a bit more testing, updated the docs and remembered the SVN stuff I’ll try an
   update of the repository.
 * thanks all
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219906)
 * i’ve actually overhauled the code a fair bit now so the callback data is changed
   only very quickly and also things like is_active_sidebar should work properly
   to show empty sidebars as i’ve moved to using the ‘sidebars_widgets’ filter instead.
   which i should have moved to doing years ago.
 * need to test it on 3.3 now really though. so give me some time…
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 6 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219907)
 * FWIW if anyone is still looking at this, i’ve updated the development version
   to 0.50 if anyone wants to check it out
 * I’ll try to test it a bit more myself before commiting it as the stable current
   version
 *  [cockpitseeker](https://wordpress.org/support/users/cockpitseeker/)
 * (@cockpitseeker)
 * [14 years, 5 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219912)
 * I think I’d be interested if it’s still in the pipes…
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 5 months ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219913)
 * i already committed this, and the latest stable version is v.51 out now. is_active_sidebar
   works properly and it has a much reduced callback interception that is only active
   when the content filter is used too.
 *  [Ojibirish](https://wordpress.org/support/users/wptim/)
 * (@wptim)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219924)
 * alanft, is your v.51 working with wp 3.3.1/3.3.2? I would be interested in trying
   this out and see if I can get it to work on some sites I am work on that use 
   widget context, but these sites need to get up dated and I cannot cause of the
   widget context plugin.
 * Any help on fixing this would be much appreciated.
 *  [alanft](https://wordpress.org/support/users/alanft/)
 * (@alanft)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219925)
 * 3.3.1 i’m happy with (and the user compatibility widget says 50 v 2), and I’ve
   just updated the home site i test with on 3.3.2 and it’s working fine.
 * It’s worth mentioning there’s a dev version to test too with a couple of important
   additions in it. I’ve got no way to ask people to beta test that for me. So i’ll
   probably just commit that soon, as it works fine for me.
 *  [Ojibirish](https://wordpress.org/support/users/wptim/)
 * (@wptim)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219926)
 * i just seen you are the widget logic developer lol, I am a dope. Your name looked
   familiar too lol.

Viewing 15 replies - 1 through 15 (of 15 total)

The topic ‘Widget Logic / Widget Context replacing callback’ is closed to new replies.

 * 15 replies
 * 5 participants
 * Last reply from: [Ojibirish](https://wordpress.org/support/users/wptim/)
 * Last activity: [14 years, 1 month ago](https://wordpress.org/support/topic/widget-logic-widget-context-replacing-callback/#post-2219926)
 * Status: not resolved

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