<?php /** * Name: MathJax * Description: Addon for Friendica to include MathJax (LaTeX math syntax) * Version: 2.0 * Author: Tobias Diekershoff <https://social.diekershoff.de/profile/tobias> * Author: Hypolite Petovan <https://friendica.mrpetovan.com/profile/hypolite> * License: 3-clause BSD license */ use Friendica\App; use Friendica\Core\Hook; use Friendica\Core\L10n; use Friendica\Core\PConfig; use Friendica\Core\Renderer; function mathjax_install() { Hook::register('footer' , __FILE__, 'mathjax_footer'); Hook::register('addon_settings' , __FILE__, 'mathjax_settings'); Hook::register('addon_settings_post', __FILE__, 'mathjax_settings_post'); } function mathjax_uninstall() { Hook::unregister('footer' , __FILE__, 'mathjax_footer'); Hook::unregister('addon_settings' , __FILE__, 'mathjax_settings'); Hook::unregister('addon_settings_post', __FILE__, 'mathjax_settings_post'); // Legacy hooks Hook::unregister('load_config' , __FILE__, 'mathjax_load_config'); Hook::unregister('page_header' , __FILE__, 'mathjax_page_header'); Hook::unregister('template_vars' , __FILE__, 'mathjax_template_vars'); } function mathjax_settings_post($a) { if (!local_user() || empty($_POST['mathjax-submit'])) { return; } PConfig::set(local_user(), 'mathjax', 'use', intval($_POST['mathjax_use'])); } function mathjax_settings(App $a, &$s) { if (!local_user()) { return; } $use = PConfig::get(local_user(), 'mathjax', 'use', false); $tpl = Renderer::getMarkupTemplate('settings.tpl', __DIR__); $s .= Renderer::replaceMacros($tpl, [ '$title' => 'MathJax', '$description' => L10n::t('The MathJax addon renders mathematical formulae written using the LaTeX syntax surrounded by the usual $$ or an eqnarray block in the postings of your wall,network tab and private mail.'), '$mathjax_use' => ['mathjax_use', L10n::t('Use the MathJax renderer'), $use, ''], '$savesettings' => L10n::t('Save Settings'), ]); } function mathjax_footer(App $a, &$b) { // if the visitor of the page is not a local_user, use MathJax // otherwise check the users settings. if (!local_user() || PConfig::get(local_user(), 'mathjax', 'use', false)) { $a->registerFooterScript(__DIR__ . '/asset/MathJax.js?config=TeX-MML-AM_CHTML'); $a->registerFooterScript(__DIR__ . '/mathjax.js'); } }