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<?php
global $CFG;
require_once("HTML/QuickForm/button.php");
require_once($CFG->dirroot.'/repository/lib.php');
/**
* HTML class for a single filepicker element (based on button)
*
* @author Moodle.com
* @version 1.0
* @since Moodle 2.0
* @access public
*/
class MoodleQuickForm_filepicker extends HTML_QuickForm_input {
public $_helpbutton = '';
protected $_options = array('maxbytes'=>0, 'accepted_types'=>'*', 'return_types'=>FILE_INTERNAL);
function MoodleQuickForm_filepicker($elementName=null, $elementLabel=null, $attributes=null, $options=null) {
global $CFG;
$options = (array)$options;
foreach ($options as $name=>$value) {
if (array_key_exists($name, $this->_options)) {
$this->_options[$name] = $value;
}
}
if (!empty($options['maxbytes'])) {
$this->_options['maxbytes'] = get_max_upload_file_size($CFG->maxbytes, $options['maxbytes']);
}
$this->_type = 'filepicker';
parent::HTML_QuickForm_input($elementName, $elementLabel, $attributes);
}
function setHelpButton($helpbuttonargs, $function='helpbutton') {
debugging('component setHelpButton() is not used any more, please use $mform->setHelpButton() instead');
}
function getHelpButton() {
return $this->_helpbutton;
}
function getElementTemplateType() {
if ($this->_flagFrozen){
return 'nodisplay';
} else {
return 'default';
}
}
function toHtml() {
global $CFG, $COURSE, $USER, $PAGE, $OUTPUT;
$id = $this->_attributes['id'];
$elname = $this->_attributes['name'];
if ($this->_flagFrozen) {
return $this->getFrozenHtml();
}
if (!$draftitemid = (int)$this->getValue()) {
// no existing area info provided - let's use fresh new draft area
$draftitemid = file_get_unused_draft_itemid();
$this->setValue($draftitemid);
}
if ($COURSE->id == SITEID) {
$context = get_context_instance(CONTEXT_SYSTEM);
} else {
$context = get_context_instance(CONTEXT_COURSE, $COURSE->id);
}
$client_id = uniqid();
$args = new stdClass();
// need these three to filter repositories list
$args->accepted_types = $this->_options['accepted_types']?$this->_options['accepted_types']:'*';
$args->return_types = FILE_INTERNAL;
$args->itemid = $draftitemid;
$args->maxbytes = $this->_options['maxbytes'];
$args->context = $PAGE->context;
$args->buttonname = $elname.'choose';
$args->elementname = $elname;
$html = $this->_getTabs();
$fp = new file_picker($args);
$options = $fp->options;
$options->context = $PAGE->context;
$html .= $OUTPUT->render($fp);
$html .= '<input type="hidden" name="'.$elname.'" id="'.$id.'" value="'.$draftitemid.'" class="filepickerhidden"/>';
$module = array('name'=>'form_filepicker', 'fullpath'=>'/lib/form/filepicker.js', 'requires'=>array('core_filepicker', 'node', 'node-event-simulate'));
$PAGE->requires->js_init_call('M.form_filepicker.init', array($fp->options), true, $module);
$nonjsfilepicker = new moodle_url('/repository/draftfiles_manager.php', array(
'env'=>'filepicker',
'action'=>'browse',
'itemid'=>$draftitemid,
'subdirs'=>0,
'maxbytes'=>$options->maxbytes,
'maxfiles'=>1,
'ctx_id'=>$PAGE->context->id,
'course'=>$PAGE->course->id,
'sesskey'=>sesskey(),
));
// non js file picker
$html .= '<noscript>';
$html .= "<div><object type='text/html' data='$nonjsfilepicker' height='160' width='600' style='border:1px solid #000'></object></div>";
$html .= '</noscript>';
return $html;
}
function exportValue(&$submitValues, $assoc = false) {
global $USER;
// make sure max one file is present and it is not too big
if (!empty($submitValues[$this->_attributes['name']])) {
$draftitemid = $submitValues[$this->_attributes['name']];
$fs = get_file_storage();
$usercontext = get_context_instance(CONTEXT_USER, $USER->id);
if ($files = $fs->get_area_files($usercontext->id, 'user', 'draft', $draftitemid, 'id DESC', false)) {
$file = array_shift($files);
if ($this->_options['maxbytes'] and $file->get_filesize() > $this->_options['maxbytes']) {
// bad luck, somebody tries to sneak in oversized file
$file->delete();
}
foreach ($files as $file) {
// only one file expected
$file->delete();
}
}
return array($this->_attributes['name'] => $submitValues[$this->_attributes['name']]);
} else {
return null;
}
}
}
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