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filter.php
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filter.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* easyomechjs question type version information.
*
* @package filter
* @subpackage chemdoodle
* @copyright 2014 onwards Carl LeBlond
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class filter_chemdoodle extends moodle_text_filter {
public function filter($text, array $options = array()) {
global $CFG, $chemdoodlehasbeeninitialized;
$u = $CFG->wwwroot;
if (preg_match('|https?://.*?/|', $u)) {
$relurl = preg_replace('|https?://.*?/|', '', $u);
} else {
$relurl = ''; // This will typically be the case if Moodle is the web root.
}
$numdirs = substr_count($_SERVER['PHP_SELF'], '/') - 1;
if ($numdirs == 0) {
$relurl = './' . $relurl;
} else {
$relurl = str_repeat('../', $numdirs) . $relurl;
}
$host = preg_replace('~^.*://([^:/]*).*$~', '$1', $u);
$search = '/<a\\b([^>]*?)href=\"((?:\.|\\\|https?:\/\/' . $host
. ')[^\"]+\.(jdx))\??(.*?)\"([^>]*)>(.*?)<\/a>(\s*JMOLSCRIPT\{(.*?)\})?/is';
$infodual = get_string('infodual', 'filter_chemdoodle');
$infoseeker = get_string('infoseeker', 'filter_chemdoodle');
$info = get_string('infoperspective', 'filter_chemdoodle');
$callbackfunction = '
$a = uniqid();
if(preg_match(\'/title=(\w{1,20})/\', $matches[4], $optmatch)){
if($optmatch[1]=="none"){
$title = "spectrum$a.title = \'\';";
}else{
$title = "spectrum$a.title = \'$optmatch[1]\';";}
}else{
$title = "";
}
if(preg_match(\'/minx=(\d{1,4})/\', $matches[4], $optmatch)){
$minx = "spectrum$a.minX = \'$optmatch[1]\';";
}else{
$minx = "";
}
if(preg_match(\'/flipxaxis=(\w{1,5})/\', $matches[4], $optmatch)){
if($optmatch[1] == "false"){
$flip = "component$a.specs.plots_flipXAxis = false ;";
}else{
$flip = "component$a.specs.plots_flipXAxis = true ;";
}
}else{
$flip = "component$a.specs.plots_flipXAxis = true ;";
}
if(preg_match(\'/maxx=(\d{1,4})/\', $matches[4], $optmatch)){
$maxx = "spectrum$a.maxX = \'$optmatch[1]\';";
}else{
$maxx = "";
}
if(preg_match(\'/int=(\w{1,3})/\', $matches[4], $optmatch)){
if($optmatch[1] == "off"){
$integ="";
}
else{
$integ = "component$a.specs.plots_showIntegration =
\'true\';component$a.specs.plots_integrationColor = \'#800000\';";
}
}
else{
$integ = "component$a.specs.plots_showIntegration = \'true\';component$a.specs.plots_integrationColor = \'#800000\';";
}
if(!preg_match(\'/c=(\d{1,2})/\', $matches[4], $optmatch))
{
$optmatch = array(1=>1);
}
if($optmatch[1] == "2"){
$canvastype="SeekerCanvas";
$jscall="
var spectrum$a = ChemDoodle.readJCAMP(jdxstring);
var component$a = new ChemDoodle.SeekerCanvas(\'component$a\', 500, 200, ChemDoodle.SeekerCanvas.SEEK_PLOT);
component$a.specs.plots_color=\'#00B918\';
component$a.specs.plots_integrationColor = \'#800000\';
component$a.specs.backgroundColor = \'#FFFBC9\';
component$a.specs.text_font_size = 14.0;
$flip
$minx
$maxx
$title
component$a.specs.text_font_families = \'SansSerif\';
component$a.loadSpectrum(spectrum$a);
";
$usrinfo="' . $infoseeker . '";
}
elseif ($optmatch[1]=="3"){
$jscall="
var spectrum$a = ChemDoodle.readJCAMP(jdxstring);
var component$a = new ChemDoodle.PerspectiveCanvas(\'component$a\', 500, 200);
var seekerPlot$a = new ChemDoodle.SeekerCanvas(\'seekerPlot$a\', 500, 200, ChemDoodle.SeekerCanvas.SEEK_PLOT);
component$a.specs.plots_color=\'#00B918\';
seekerPlot$a.specs.plots_color=\'#00B918\';
component$a.specs.plots_integrationColor = \'#800000\';
seekerPlot$a.specs.plots_flipXAxis = true;
component$a.specs.plots_flipXAxis = true;
component$a.specs.backgroundColor = \'#FFFBC9\';
seekerPlot$a.specs.backgroundColor = \'#c7ffc7\';
$minx
$maxx
$title
$integ
component$a.loadSpectrum(spectrum$a);
seekerPlot$a.loadSpectrum(spectrum$a);";
$canvastype="PerspectiveCanvas";
$usrinfo="' . $infodual . '";
}else{
$jscall="var spectrum$a = ChemDoodle.readJCAMP(jdxstring);
var component$a = new ChemDoodle.PerspectiveCanvas(\'component$a\', 500, 200);
component$a.specs.plots_color=\'#00B918\';
component$a.specs.plots_integrationColor = \'#800000\';
$flip
$minx
$maxx
$integ
$title
component$a.loadSpectrum(spectrum$a);";
$canvastype="PerspectiveCanvas";
$usrinfo="' . $info . '";
}
return "
$usrinfo
<script type=\"text/javascript\">
var jdxstring=file_get_contents(\'$matches[2]\');
$jscall
</script>
";';
$newtext = preg_replace_callback($search, create_function('$matches', $callbackfunction), $text);
if (($newtext != $text) && !isset($chemdoodlehasbeeninitialized)) {
$chemdoodlehasbeeninitialized = true;
$newtext = '
<link rel="stylesheet" href="/chemdoodle/ChemDoodleWeb.css\" type="text/css" />
<script src="' . $u . '/filter/chemdoodle/cwc/ChemDoodleWeb-libs.js" type="text/javascript"></script>
<script src="' . $u . '/filter/chemdoodle/cwc/ChemDoodleWeb.js" type="text/javascript"></script>
<script src="' . $u . '/filter/chemdoodle/cwc/sketcher/ChemDoodleWeb-sketcher.js" type="text/javascript"></script>
<script src="' . $u . '/filter/chemdoodle/module.js" type="text/javascript"></script>
' . $newtext;
// GR Hack to use popup window for help.php in Moodle 2.0.
$newtext = '
<script language="javascript" type="text/javascript">
function MyCallBack(x, y) {
document.getElementById("JSVApplet").addHighlight(x-0.1, x+0.1,241,111,171,200);
alert("x: "+x+" y: "+y);
}
function RevPlot() {
document.getElementById("JSVApplet").reversePlot();
}
function GridToggle() {
document.getElementById("JSVApplet").toggleGrid();
}
function RemoveHighlights() {
document.getElementById("JSVApplet").removeAllHighlights();
}
</script>' . $newtext;
}
return $newtext;
}
}