I know this issue from this Q&A: Update widget form after drag-and-drop (WP save bug). I was answering a Stack Overflow question and faced the same problem. We have to add an AjaxComplete action and fire our function when XMLHttpRequest.responseText is true. I’m not sure about the inner workings but we only have to modify … Read more
dynamic_sidebar() calls wp_get_sidebars_widgets() to get all widgets per sidebar. I think filtering this output is the best way to remove a widget from an sidebar. add_filter( ‘sidebars_widgets’, ‘wpse17681_sidebars_widgets’ ); function wpse17681_sidebars_widgets( $sidebars_widgets ) { if ( is_page() /* Or whatever */ ) { foreach ( $sidebars_widgets as $sidebar_id => &$widgets ) { if ( ‘my_sidebar’ … Read more
Background: The reason why filtering with dynamic_sidebar_params doesn’t work with HTML is because WordPress strips HTML from Widget Heading in wp_widget_control() function like this: $widget_title = esc_html( strip_tags( $sidebar_args[‘widget_name’] ) ); WordPress also strips HTML in default JavaScript in wp-admin/js/widgets.js So without a customised solution, there is no default filter or option either with PHP … Read more
Just create a widget that doesn’t filter your input. This is probably the most simple widget with user input you can build. Here is the widget I use in my plugin Magic Widgets. /** * Simplified variant of the native text widget class. * * @author Fuxia Scholz * @version 1.0 */ class Unfiltered_Text_Widget extends … Read more
Storing widgets is complex topic. Basically it is such a multi-level-array-mess on the inside that very few people try to make sense of it (and even fewer succeed). 🙂 As far as I understand it myself while we can manipulate cute sidebar names on the surface, deep inside it is getting deconstructed to numerical IDs. … Read more
You can hook into the ‘get_search_form’ action hook ( check out the “last option” part of the link below ). Set the priority high enough to override anything created in a theme. A plugin could look like ( from the link below ): function my_search_form( $form ) { $form = ‘<form role=”search” method=”get” id=”searchform” class=”searchform” … Read more
It depends on where you want to show the widget. Let’s start with the widget area (sidebar) registration: add_action( ‘wp_loaded’, ‘wpse_76959_register_widget_area’ ); function wpse_76959_register_widget_area() { register_sidebar( array ( ‘name’ => __( ‘Widgets on page Sample Page’, ‘theme_textdomain’ ), ‘description’ => __( ‘Will be used on a page with a slug “sample-page” only.’, ‘theme_textdomain’ ), ‘id’ … Read more
Widgets are stored in a public variable $widgets in the class WP_Widget_Factory. You can access this class per global variable $wp_widget_factory. To get all registered widgets, list the keys: add_action( ‘wp_footer’, function() { if ( empty ( $GLOBALS[‘wp_widget_factory’] ) ) return; $widgets = array_keys( $GLOBALS[‘wp_widget_factory’]->widgets ); print ‘<pre>$widgets=” . esc_html( var_export( $widgets, TRUE ) ) … Read more
I am taking the core of the question to be: “… I’m not able to retrieve the widget class name” You will need to check the global variable $wp_registered_widgets to fill in the missing information. This proof-of-concept code should give you the idea. The code assumes a sidebar named sidebar-1. You will have to adjust … Read more
You should make the check inside the widget class, unless you don’t have a choice. The example in the codex is pretty much what you’re looking for: class cbs_map_widget extends WP_Widget{ function cbs_map_widget(){ $this->WP_Widget(‘cbsmaps’, __(‘Widget Name’), array(‘classname’ => ‘cbsmaps’, ‘description’ => __(‘whatever’))); … add_action(‘wp_enqueue_scripts’, array(&$this, ‘js’)); } function js(){ if ( is_active_widget(false, false, $this->id_base, true) … Read more