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WordPress: Show/Hide custom Metabox in Editor Screen based on page template selected.
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| <?php | |
| add_action('admin_head', 'metaboxScripts'); | |
| function metaboxScripts() { | |
| global $current_screen; | |
| if ('page' != $current_screen->id) return; | |
| echo <<<HTML | |
| <script type="text/javascript"> | |
| (function($){ | |
| $(window).on('load', function () { | |
| const getPostTemplate = () => wp.data.select('core/editor').getEditedPostAttribute('template'); | |
| let postTemplate = getPostTemplate(); | |
| wp.data.subscribe(() => { | |
| const newTemplate = getPostTemplate(); | |
| if( postTemplate !== newTemplate ) { | |
| if (newTemplate === 'page-custom-template.php' ) { | |
| $('#your_meta_box').show(); | |
| } else { | |
| $('#your_meta_box').hide(); | |
| } | |
| postTemplate = newTemplate; | |
| } | |
| }); | |
| }); | |
| })(jQuery); | |
| </script> | |
| HTML; | |
| } |
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