forked from friendica/friendica-addons
75 lines
3.6 KiB
PHP
75 lines
3.6 KiB
PHP
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<?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: 1.0
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* Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendika/profile/tobias>
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* License: 3-clause BSD license
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*/
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function mathjax_install() {
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register_hook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
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register_hook('plugin_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
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register_hook('plugin_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
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logger('installed js_math plugin');
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}
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function mathjax_uninstall() {
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unregister_hook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
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unregister_hook('plugin_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
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unregister_hook('plugin_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
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}
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function mathjax_settings_post ($a, $post) {
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if (! local_user())
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return;
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// don't check statusnet settings if statusnet submit button is not clicked
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if (!x($_POST,'mathjax-submit'))
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return;
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set_pconfig(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 = get_pconfig(local_user(),'mathjax','use');
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$usetext = (($use) ? ' checked="checked" ' : '');
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$s .= '<div class="settings-block">';
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$s .= '<h3>MathJax '.t('Settings').'</h3>';
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$s .= '<p>'.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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$s .= '<label id="mathjax_label" for="mathjax_use">'.t('Use the MathJax renderer').'</label>';
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$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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$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="mathjax-submit" name="mathjax-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
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$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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$url = get_config ('mathjax','baseurl','http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML');
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if (! local_user()) {
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$b .= '<script type="text/javascript" src="'.$url.'"></script>';
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} else {
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$use = get_pconfig(local_user(),'mathjax','use');
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if ($use) {
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$b .= '<script type="text/javascript" src="'.$url.'"></script>';
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}
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}
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}
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function mathjax_plugin_admin_post (&$a) {
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$baseurl = ((x($_POST, 'baseurl')) ? trim($_POST['baseurl']) : 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML');
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set_config('mathjax','baseurl',$baseurl);
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info( t('Settings updated.'). EOL);
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}
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function mathjax_plugin_admin (&$a, &$o) {
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$t = file_get_contents( dirname(__file__)."/admin.tpl");
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if (get_config('mathjax','baseurl','') == '') {
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set_config('mathjax','baseurl','http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML');
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}
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$o = replace_macros( $t, array(
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'$baseurl' => array('baseurl', t('MathJax Base URL'), get_config('mathjax','baseurl' ), 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.')),
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));
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}
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