forked from friendica/friendica-addons
96 lines
4.5 KiB
PHP
96 lines
4.5 KiB
PHP
<?php
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/**
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* Name: MathJax
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* Description: Addon for Friendika to include MathJax (LaTeX math syntax)
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* Version: 1.1
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* Author: Tobias Diekershoff <https://social.diekershoff.de/profile/tobias>
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* License: 3-clause BSD license
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*/
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use Friendica\App;
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use Friendica\Core\Addon;
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use Friendica\Core\Config;
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use Friendica\Core\L10n;
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use Friendica\Core\PConfig;
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function mathjax_install() {
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Addon::registerHook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
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Addon::registerHook('addon_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
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Addon::registerHook('addon_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
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Addon::registerHook('template_vars', 'addon/mathjax/mathjax.php', 'mathjax_template_vars');
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logger('installed js_math addon');
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}
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function mathjax_uninstall() {
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Addon::unregisterHook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
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Addon::unregisterHook('addon_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
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Addon::unregisterHook('addon_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
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Addon::unregisterHook('template_vars','addon/mathjax/mathjax.php', 'mathjax_template_vars');
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}
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function mathjax_template_vars($a, &$arr) {
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$arr['vars']['addon_hooks'][] = "mathjax";
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}
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function mathjax_settings_post ($a, $post) {
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if (! local_user())
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return;
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if (!x($_POST,'mathjax-submit'))
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return;
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PConfig::set(local_user(),'mathjax','use',intval($_POST['mathjax_use']));
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}
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function mathjax_settings (&$a, &$s) {
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if (! local_user())
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return;
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$use = PConfig::get(local_user(),'mathjax','use');
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$usetext = (($use) ? ' checked="checked" ' : '');
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$s .= '<span id="settings_mathjax_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_mathjax_expanded\'); openClose(\'settings_mathjax_inflated\');">';
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$s .= '<h3>MathJax '.L10n::t('Settings').'</h3>';
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$s .= '</span>';
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$s .= '<div id="settings_mathjax_expanded" class="settings-block" style="display: none;">';
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$s .= '<span class="fakelink" onclick="openClose(\'settings_mathjax_expanded\'); openClose(\'settings_mathjax_inflated\');">';
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$s .= '<h3>MathJax '.L10n::t('Settings').'</h3>';
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$s .= '</span>';
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$s .= '<p>'.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.').'</p>';
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$s .= '<label id="mathjax_label" for="mathjax_use">'.L10n::t('Use the MathJax renderer').'</label>';
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$s .= '<input id="mathjax_use" type="checkbox" name="mathjax_use" value="1"'. $usetext .' />';
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$s .= '<div class="clear"></div>';
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$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="mathjax-submit" name="mathjax-submit" class="settings-submit" value="' . L10n::t('Save Settings') . '" /></div>';
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$s .= '</div>';
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}
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/* we need to add one JavaScript include command to the html output
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* note that you have to check the jsmath/easy/load.js too.
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*/
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function mathjax_page_header($a, &$b) {
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// if the visitor of the page is not a local_user, use MathJax
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// otherwise check the users settings.
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$url = Config::get ('mathjax','baseurl');
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if(! $url) {
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$url = 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.4/MathJax.js?config=TeX-MML-AM_CHTML';
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}
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if (! local_user()) {
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$b .= '<script type="text/javascript" src="'.$url.'" async></script>';
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} else {
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$use = PConfig::get(local_user(),'mathjax','use');
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if ($use) {
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$b .= '<script type="text/javascript" src="'.$url.'" async></script>';
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}
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}
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}
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function mathjax_addon_admin_post (&$a) {
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$baseurl = ((x($_POST, 'mjbaseurl')) ? trim($_POST['mjbaseurl']) : 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.4/MathJax.js?config=TeX-MML-AM_CHTML');
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Config::set('mathjax','baseurl',$baseurl);
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info(L10n::t('Settings updated.'). EOL);
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}
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function mathjax_addon_admin (App $a, &$o) {
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$t = get_markup_template( "admin.tpl", "addon/mathjax/" );
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if (Config::get('mathjax','baseurl','') == '') {
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Config::set('mathjax','baseurl','https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.4/MathJax.js?config=TeX-MML-AM_CHTML');
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}
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$o = replace_macros( $t, [
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'$submit' => L10n::t('Save Settings'),
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'$mjbaseurl' => ['mjbaseurl', L10n::t('MathJax Base URL'), Config::get('mathjax','baseurl' ), L10n::t('The URL for the javascript file that should be included to use MathJax. Can be either the MathJax CDN or another installation of MathJax.'), 'required']
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]);
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}
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