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 $_options = array('maxbytes'=>0, 'filetypes'=>'*', 'returnvalue'=>'*');
function MoodleQuickForm_filepicker($elementName=null, $elementLabel=null, $attributes=null, $options=null) {
global $CFG;
require_once("$CFG->dirroot/repository/lib.php");
$options = (array)$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, $options['maxbytes']);
}
parent::HTML_QuickForm_input($elementName, $elementLabel, $attributes);
repository_head_setup();
}
function setHelpButton($helpbuttonargs, $function='helpbutton') {
if (!is_array($helpbuttonargs)) {
$helpbuttonargs = array($helpbuttonargs);
} else {
$helpbuttonargs = $helpbuttonargs;
}
//we do this to to return html instead of printing it
//without having to specify it in every call to make a button.
if ('helpbutton' == $function){
$defaultargs = array('', '', 'moodle', true, false, '', true);
$helpbuttonargs = $helpbuttonargs + $defaultargs ;
}
$this->_helpbutton=call_user_func_array($function, $helpbuttonargs);
}
function getHelpButton() {
return $this->_helpbutton;
}
function getElementTemplateType() {
if ($this->_flagFrozen){
return 'nodisplay';
} else {
return 'default';
}
}
function toHtml() {
global $CFG, $COURSE, $USER, $PAGE;
if ($this->_flagFrozen) {
return $this->getFrozenHtml();
}
$strsaved = get_string('filesaved', 'repository');
$straddfile = get_string('openpicker', 'repository');
$currentfile = '';
$draftvalue = '';
if ($draftitemid = (int)$this->getValue()) {
$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)) {
$file = reset($files);
$currentfile = $file->get_filename();
$draftvalue = 'value="'.$draftitemid.'"';
}
} else {
// no existing area info provided - let's use fresh new draft area
$this->setValue(file_get_unused_draft_itemid());
$draftitemid = $this->getValue();
}
if ($COURSE->id == SITEID) {
$context = get_context_instance(CONTEXT_SYSTEM);
} else {
$context = get_context_instance(CONTEXT_COURSE, $COURSE->id);
}
$client_id = uniqid();
$repojs = repository_get_client($context, $client_id, $this->_options['filetypes'], $this->_options['returnvalue']);
$PAGE->requires->data_for_js('filepicker', array('maxbytes'=>$this->_options['maxbytes'],'maxfiles'=>1));
$PAGE->requires->js('lib/form/filepicker.js');
$id = $this->_attributes['id'];
$elname = $this->_attributes['name'];
$str = $this->_getTabs();
$str .= '
$currentfile
Error
EOD;
$str .= $PAGE->requires->js_function_call('destroy_item', array("nonjs-filepicker-{$client_id}"))->asap();
$str .= $PAGE->requires->js_function_call('show_item', array("filepicker-wrapper-{$client_id}"))->asap();
return $str;
}
function exportValue(&$submitValues, $assoc = false) {
global $USER;
// make sure max one file is present and it is not too big
if ($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']]);
}
}