ussr-hubzilla-addons/link/link.php

<?php
/**
 * Name: Link
 * Description: Using short links on whole hub
 * Version: 0.03
 * Author: ivan zlax <@zlax@ussr.win>
 * Maintainer: ivan zlax <@zlax@ussr.win>
 */

use Zotlabs\Lib\Apps;
use Zotlabs\Extend\Hook;
use Zotlabs\Extend\Route;

function link_load() {
    register_hook('page_end', 'addon/link/link.php', 'link_active');
    Route::register('addon/link/Mod_Link.php','link');
}

function link_unload() {
    unregister_hook('page_end', 'addon/link/link.php', 'link_active');
    Route::unregister('addon/link/Mod_Link.php','link');
}

function link_active(&$a,&$b) {
    // Javascript code for "Link on Hub" button insert - it is not good, it is temporarily, works not good
    $b .= "\n<script>window.onload = function() { let visibleitems = document.querySelectorAll('.btn-group [aria-labelledby]'); for (currentitem of visibleitems) { if (currentitem.getAttribute('aria-labelledby').substr(0,15) == 'wall-item-menu-') currentitem.querySelector('[title=\"Link to Source\"]').outerHTML += '<a class=\"dropdown-item\" href=\"/link/' + currentitem.getAttribute('aria-labelledby').substr(15) + '\" title=\"Link on Hub\"><i class=\"generic-icons-nav fa fa-fw fa-external-link\"></i>Link on Hub</a>';} };</script>\n";
}