Official Addons for the Friendica Communications Platform. (please note that this is a clone of the repository at github, issues are handled there)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

78 lines
3.6 KiB

<?php
/**
* Name: MathJax
* Description: Addon for Friendika to include MathJax (LaTeX math syntax)
* Version: 1.0
* Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
* License: 3-clause BSD license
*/
function mathjax_install() {
register_hook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
register_hook('plugin_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
register_hook('plugin_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
logger('installed js_math plugin');
}
function mathjax_uninstall() {
unregister_hook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
unregister_hook('plugin_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
unregister_hook('plugin_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
}
function mathjax_settings_post ($a, $post) {
if (! local_user())
return;
// don't check statusnet settings if statusnet submit button is not clicked
if (!x($_POST,'mathjax-submit'))
return;
set_pconfig(local_user(),'mathjax','use',intval($_POST['mathjax_use']));
}
function mathjax_settings (&$a, &$s) {
if (! local_user())
return;
$use = get_pconfig(local_user(),'mathjax','use');
$usetext = (($use) ? ' checked="checked" ' : '');
$s .= '<div class="settings-block">';
$s .= '<h3>MathJax '.t('Settings').'</h3>';
$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>';
$s .= '<label id="mathjax_label" for="mathjax_use">'.t('Use the MathJax renderer').'</label>';
$s .= '<input id="mathjax_use" type="checkbox" name="mathjax_use" value="1"'. $usetext .' />';
$s .= '<div class="clear"></div>';
$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="mathjax-submit" name="mathjax-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
$s .= '</div>';
}
/* we need to add one JavaScript include command to the html output
* note that you have to check the jsmath/easy/load.js too.
*/
function mathjax_page_header($a, &$b) {
// if the visitor of the page is not a local_user, use MathJax
// otherwise check the users settings.
$url = get_config ('mathjax','baseurl');
if(! $url)
$url = 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
if (! local_user()) {
$b .= '<script type="text/javascript" src="'.$url.'"></script>';
} else {
$use = get_pconfig(local_user(),'mathjax','use');
if ($use) {
$b .= '<script type="text/javascript" src="'.$url.'"></script>';
}
}
}
function mathjax_plugin_admin_post (&$a) {
$baseurl = ((x($_POST, 'baseurl')) ? trim($_POST['baseurl']) : 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML');
set_config('mathjax','baseurl',$baseurl);
info( t('Settings updated.'). EOL);
}
function mathjax_plugin_admin (&$a, &$o) {
$t = get_markup_template( "admin.tpl", "addon/mathjax/" );
if (get_config('mathjax','baseurl','') == '') {
set_config('mathjax','baseurl','http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML');
}
$o = replace_macros( $t, array(
'$submit' => t('Submit'),
'$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.')),
));
}