Disable edit option in Media library

2 comments

1. There’re several filters that you can utilize:

   Custom column content

   If you got a custom column that you added with the “-filter, then you can use the

   manage_{$post->post_type}_posts_custom_column
   

   filter to alter the content. If you only want to target non-hierarchial post types then there’s as well the manage_posts_custom_column and for hierarchical ones, there’s manage_pages_custom_column. All three filters have two arguemnts: $column_name, $post->ID.

   For the media library there’s a special filter: manage_media_custom_column.

   Removing actions

   IIRC, there’s the following filter to add or remove different actions:

   apply_filters( 'bulk_actions-' . $this->screen->id, $this->_actions );
   

   You should be able to obtain the screen ID from get_current_screen()->ID.

   For the media library it’s – again – a special case and you have to use the

   apply_filters( 'media_row_actions', $actions, $post, $this->detached );
   

   filter.

   Make sure that you don’t use $this-> inside your callback arguments as you’re not in object context.

   Removing the image link

   So far there’s no possibility to completely remove the <a href="" ... tag without a lot of effort. But you can (simply) set the link target to the current page with using the get_edit_post_link-filter.

   Just re-target it to sprintf( '#post-%s', $post_id );:

   add_filter( 'get_edit_post_link', 'wpse107783_remove_media_icon_link', 20, 2 );
   function wpse107783_remove_media_icon_link( $url, $post_id )
   {
       if ( 'upload' !== get_current_screen()->id )
           return $url;
   
       return sprintf( '#post-%s', $post_id );
   }
   

   Why not CSS or JS?

   Still people could remove event listeners or CSS rules via their developer tools, which is something you might not want.

   Redirect

   A real lock out can only happen server side based on roles and capabilities.

   add_action( 'template_redirect', 'wpse107783_redirect_media_edit' );
   function wpse107783_redirect_media_edit()
   {
       if (
           ! is_admin()
           OR 'attachment' !== get_current_screen()->id
       )
           return;
   
       exit( wp_redirect( admin_url() ) );
   }
   

   Note: I’m not sure if template_redirect is the right hook here. It might as well be admin_menu or init.

2. Add some CSS to admin_head to hide the image actions bar, and hide the edit button once clicking into the image:

   This should do the trick:

   function hide_image_edit_link() {
       echo '<style>
           table.media .row-actions {display:none;}
           .wp_attachment_image input[id^="imgedit-open-btn"] {display:none;}
       </style>';
   }
   add_action('admin_head', 'hide_image_edit_link');
   

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