forked from friendica/friendica-addons
049abe9176
- Remove baseurl admin config - Move script to page end - Add new postprocess_liveupdate event listener - Fix formatting of mathjax.php
91 lines
3.4 KiB
PHP
91 lines
3.4 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: 2
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* Author: Tobias Diekershoff <https://social.diekershoff.de/profile/tobias>
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* Author: Hypolite Petovan <https://friendica.mrpetovan.com/profile/hypolite>
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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\L10n;
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use Friendica\Core\PConfig;
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function mathjax_install()
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{
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Addon::registerHook('page_end' , __FILE__, 'mathjax_page_end');
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Addon::registerHook('addon_settings' , __FILE__, 'mathjax_settings');
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Addon::registerHook('addon_settings_post', __FILE__, 'mathjax_settings_post');
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}
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function mathjax_uninstall()
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{
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Addon::unregisterHook('page_end' , __FILE__, 'mathjax_page_end');
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Addon::unregisterHook('addon_settings' , __FILE__, 'mathjax_settings');
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Addon::unregisterHook('addon_settings_post', __FILE__, 'mathjax_settings_post');
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// Legacy hooks
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Addon::unregisterHook('load_config' , __FILE__, 'mathjax_load_config');
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Addon::unregisterHook('page_header' , __FILE__, 'mathjax_page_header');
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Addon::unregisterHook('template_vars' , __FILE__, 'mathjax_template_vars');
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}
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function mathjax_settings_post($a)
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{
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if (!local_user()) {
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return;
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}
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if (empty($_POST['mathjax-submit'])) {
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return;
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}
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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(App $a, &$s)
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{
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if (!local_user()) {
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return;
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}
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$use = PConfig::get(local_user(), 'mathjax', 'use', false);
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$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_end(App $a, &$b)
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{
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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 = $a->get_baseurl() . '/addon/mathjax/asset/MathJax.js?config=TeX-MML-AM_CHTML';
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if (!local_user() || PConfig::get(local_user(), 'mathjax', 'use', false)) {
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$b .= <<<HTML
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<script type="text/javascript" src="{$url}"></script>
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<script type="text/javascript">
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document.addEventListener('postprocess_liveupdate', function () {
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MathJax.Hub.Queue(['Typeset', MathJax.Hub]);
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});
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</script>
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HTML;
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}
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}
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