/**
* Migrate geogebra package to new area if found
*
* @return
*/
function geogebra_migrate_files()
{
global $CFG, $DB;
$fs = get_file_storage();
$sqlfrom = "FROM {geogebra} j\n JOIN {modules} m ON m.name = 'geogebra'\n JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = j.id)";
$count = $DB->count_records_sql("SELECT COUNT('x') {$sqlfrom}");
$rs = $DB->get_recordset_sql("SELECT j.id, j.url, j.course, cm.id AS cmid {$sqlfrom} ORDER BY j.course, j.id");
if ($rs->valid()) {
$pbar = new progress_bar('migrategeogebrafiles', 500, true);
$i = 0;
foreach ($rs as $geogebra) {
$i++;
upgrade_set_timeout(180);
// set up timeout, may also abort execution
$pbar->update($i, $count, "Migrating geogebra files - {$i}/{$count}.");
$context = context_module::instance($geogebra->cmid);
$coursecontext = context_course::instance($geogebra->course);
if (!geogebra_is_valid_external_url($geogebra->url)) {
// first copy local files if found - do not delete in case they are shared ;-)
$geogebrafile = clean_param($geogebra->url, PARAM_PATH);
$pathnamehash = sha1("/{$coursecontext->id}/course/legacy/0/{$geogebrafile}");
if ($file = $fs->get_file_by_hash($pathnamehash)) {
$file_record = array('contextid' => $context->id, 'component' => 'mod_geogebra', 'filearea' => 'content', 'itemid' => 0, 'filepath' => '/');
try {
$fs->create_file_from_storedfile($file_record, $file);
} catch (Exception $x) {
// ignore any errors, we can not do much anyway
}
$geogebra->url = $pathnamehash;
} else {
$geogebra->url = '';
}
$DB->update_record('geogebra', $geogebra);
}
}
}
$rs->close();
}
/**
* Execute Javascript that is embedded in the geogebra file, if it exists
* File must be named geogebra_javascript.js
* @param object $context Of the activity to get the files
* @param object $geogebra object with the activity info
*/
function geogebra_get_js_from_geogebra($context, $geogebra)
{
global $CFG;
$content = false;
if (geogebra_is_valid_external_url($geogebra->url)) {
require_once "{$CFG->libdir}/filestorage/zip_packer.php";
// Prepare tmp dir (create if not exists, download ggb file...)
$dirname = 'mod_geogebra_' . time();
$tmpdir = make_temp_directory($dirname);
if (!$tmpdir) {
debugging("Cannot create temp directory {$dirname}");
return;
}
$materialid = geogebra_get_id($geogebra->url);
if ($materialid) {
$ggbfile = "http://tube.geogebra.org/material/download/format/file/id/{$materialid}";
} else {
$ggbfile = $geogebra->url;
}
$filename = pathinfo($ggbfile, PATHINFO_FILENAME);
$tmpggbfile = tempnam($tmpdir, $filename . '_');
// Download external GGB and extract javascript file
if (!download_file_content($ggbfile, null, null, false, 300, 20, false, $tmpggbfile)) {
debugging("Error copying from {$ggbfile}");
return;
}
// Extract geogebra js from GGB file
$zip = new zip_packer();
$extract = $zip->extract_to_pathname($tmpggbfile, $tmpdir, array('geogebra_javascript.js'));
if ($extract && $extract['geogebra_javascript.js']) {
unlink($tmpggbfile);
} else {
@unlink($tmpggbfile);
@rmdir($tmpdir);
debugging("Cannot open zipfile {$tmpggbfile}");
return;
}
$content = file_get_contents($tmpdir . '/geogebra_javascript.js');
// Delete temporary files
unlink($tmpdir . '/geogebra_javascript.js');
rmdir($tmpdir);
} else {
$fs = get_file_storage();
$file = $fs->get_file($context->id, 'mod_geogebra', 'extracted_files', 0, '/', 'geogebra_javascript.js');
if ($file) {
$content = $file->get_content();
}
}
if (empty($content)) {
debugging("Empty content");
return;
}
echo '<script type="text/javascript">
if (typeof ggbApplet == \'undefined\') {
ggbApplet = document.ggbApplet;
}
' . $content . '</script>';
}
function set_data($values)
{
global $CFG;
$values = (array) $values;
if (isset($values['url'])) {
// Need to translate the "url" field
if (geogebra_is_valid_external_url($values['url'])) {
$values['filetype'] = GEOGEBRA_FILE_TYPE_EXTERNAL;
$values['geogebraurl'] = $values['url'];
} else {
$values['filetype'] = GEOGEBRA_FILE_TYPE_LOCAL;
$values['geogebrafile'] = $values['url'];
}
// Load attributes
parse_str($values['attributes'], $attributes);
$values['enableRightClick'] = isset($attributes['enableRightClick']) ? $attributes['enableRightClick'] : 0;
$values['enableLabelDrags'] = isset($attributes['enableLabelDrags']) ? $attributes['enableLabelDrags'] : 0;
$values['showResetIcon'] = isset($attributes['showResetIcon']) ? $attributes['showResetIcon'] : 0;
$values['showMenuBar'] = isset($attributes['showMenuBar']) ? $attributes['showMenuBar'] : 0;
$values['showToolBar'] = isset($attributes['showToolBar']) ? $attributes['showToolBar'] : 0;
$values['showToolBarHelp'] = isset($attributes['showToolBarHelp']) ? $attributes['showToolBarHelp'] : 0;
$values['showAlgebraInput'] = isset($attributes['showAlgebraInput']) ? $attributes['showAlgebraInput'] : 0;
$values['language'] = isset($attributes['language']) ? $attributes['language'] : 0;
}
unset($values['url']);
$this->data_preprocessing($values);
parent::set_data($values);
}
