Move File manager rendering to Output API

/**

 * Data structure representing a file manager.

 *

 * @copyright 2010 Dongsheng Cai

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 * @since     Moodle 2.0

 */

class file_manager implements renderable {

    public $options;

    public function __construct(stdClass $options) {

    	global $CFG, $USER, $PAGE;

        require_once($CFG->dirroot. '/repository/lib.php');

        $defaults = array(

            'maxbytes'=>-1,

            'maxfiles'=>-1,

            'itemid'=>0,

            'subdirs'=>0,

            'client_id'=>uniqid(),

            'accepted_types'=>'*',

            'return_types'=>FILE_INTERNAL,

            'context'=>$PAGE->context

            );

        foreach ($defaults as $key=>$value) {

            if (empty($options->$key)) {

                $options->$key = $value;

            }

        }

        $fs = get_file_storage();

        // initilise options, getting files in root path

        $this->options = file_get_drafarea_files($options->itemid, '/');

        // calculate file count

        $usercontext = get_context_instance(CONTEXT_USER, $USER->id);

        $files = $fs->get_area_files($usercontext->id, 'user', 'draft', $options->itemid, 'id', false);

        $filecount = count($files);

        $this->options->filecount = $filecount;

        // copying other options

        foreach ($options as $name=>$value) {

            $this->options->$name = $value;

        }

        // building file picker options

        $params = new stdClass();

        $params->accepted_types = $options->accepted_types;

        $params->return_types = $options->return_types;

        $params->context = $options->context;

        $params->env = 'filemanager';

        $params->disable_types = !empty($options->disable_types)?$options->disable_types:array();

        $filepicker_options = initialise_filepicker($params);

        $this->options->filepicker = $filepicker_options;

    }

}

        /**

	 * Print the file manager

	 *

	 * <pre>

	 * $OUTPUT->file_manager($options);

	 * </pre>

	 *

	 * @param array $options associative array with file manager options

	 *   options are:

	 *       maxbytes=>-1,

	 *       maxfiles=>-1,

	 *       itemid=>0,

	 *       subdirs=>false,

	 *       client_id=>uniqid(),

	 *       acepted_types=>'*',

	 *       return_types=>FILE_INTERNAL,

	 *       context=>$PAGE->context

	 * @return string HTML fragment

	 */

    public function file_manager($options) {

        $fp = new file_manager($options);

        return $this->render($fp);

    }

    /**

     * Internal implementation of file manager rendering.

     * @param file_manager $fm

     * @return string

     */

    public function render_file_manager(file_manager $fm) {

	    global $CFG, $OUTPUT, $PAGE;

	    static $filemanagertemplateloaded;

	    $html = '';

	    $options = $fm->options;

	    $straddfile  = get_string('addfile', 'repository');

	    $strmakedir  = get_string('makeafolder', 'moodle');

	    $strdownload = get_string('downloadfolder', 'repository');

	    $strloading  = get_string('loading', 'repository');

	    $icon_progress = $OUTPUT->pix_icon('i/loading_small', $strloading).'';

	    $client_id = $options->client_id;

	    $itemid    = $options->itemid;

	    list($context, $course, $cm) = get_context_info_array($options->context->id);

	    if (is_object($course)) {

	        $course_maxbytes = $course->maxbytes;

	    } else {

	        $course_maxbytes = $CFG->maxbytes;

	    }

	    if ($options->maxbytes == -1 || empty($options->maxbytes)) {

	        $options->maxbytes = $CFG->maxbytes;

	    }

	    if (empty($options->filecount)) {

	        $extra = ' style="display:none"';

	    } else {

	        $extra = '';

	    }

	    $maxsize = get_string('maxfilesize', 'moodle', display_size(get_max_upload_file_size($CFG->maxbytes, $course_maxbytes, $options->maxbytes)));

	    $html .= <<<FMHTML

<div class="filemanager-loading mdl-align" id='filemanager-loading-{$client_id}'>

$icon_progress

</div>

<div id="filemanager-wrapper-{$client_id}" style="display:none">

    <div class="fm-breadcrumb" id="fm-path-{$client_id}"></div>

    <div class="filemanager-toolbar">

        <input type="button" class="fm-btn-add" id="btnadd-{$client_id}" onclick="return false" value="{$straddfile}" />

        <input type="button" class="fm-btn-mkdir" id="btncrt-{$client_id}" onclick="return false" value="{$strmakedir}" />

        <input type="button" class="fm-btn-download" id="btndwn-{$client_id}" onclick="return false" {$extra} value="{$strdownload}" />

        <span> $maxsize </span>

    </div>

    <div class="filemanager-container" id="filemanager-{$client_id}">

        <ul id="draftfiles-{$client_id}" class="fm-filelist">

            <li>Loading...</li>

        </ul>

    </div>

</div>

<div class='clearer'></div>

FMHTML;

    if (empty($filemanagertemplateloaded)) {

        $filemanagertemplateloaded = true;

        $html .= <<<FMHTML

<div id="fm-template" style="display:none">___fullname___ ___action___</div>

FMHTML;

	    }

	    $module = array(

	        'name'=>'form_filemanager',

	        'fullpath'=>'/lib/form/filemanager.js',

	        'requires' => array('core_filepicker', 'base', 'io-base', 'node', 'json', 'yui2-button', 'yui2-container', 'yui2-layout', 'yui2-menu', 'yui2-treeview'),

	        'strings' => array(array('loading', 'repository'), array('nomorefiles', 'repository'), array('confirmdeletefile', 'repository'),

	             array('add', 'repository'), array('accessiblefilepicker', 'repository'), array('move', 'moodle'),

	             array('cancel', 'moodle'), array('download', 'moodle'), array('ok', 'moodle'),

	             array('emptylist', 'repository'), array('nofilesattached', 'repository'), array('entername', 'repository'), array('enternewname', 'repository'),

	             array('zip', 'editor'), array('unzip', 'moodle'), array('rename', 'moodle'), array('delete', 'moodle'),

	             array('cannotdeletefile', 'error'), array('confirmdeletefile', 'repository'),

	             array('nopathselected', 'repository'), array('popupblockeddownload', 'repository'),

	             array('draftareanofiles', 'repository'), array('path', 'moodle'), array('setmainfile', 'repository'),

	             array('moving', 'repository'), array('files', 'moodle')

	        )

	    );

	    $PAGE->requires->js_module($module);

	    $PAGE->requires->js_init_call('M.form_filemanager.init', array($options), true, $module);

	    // non javascript file manager

	    $filemanagerurl = new moodle_url('/repository/draftfiles_manager.php', array(

	        'env'=>'filemanager',

	        'action'=>'browse',

	        'itemid'=>$itemid,

	        'subdirs'=>$options->subdirs,

	        'maxbytes'=>$options->maxbytes,

	        'maxfiles'=>$options->maxfiles,

	        'ctx_id'=>$PAGE->context->id,

	        'course'=>$PAGE->course->id,

	        'sesskey'=>sesskey(),

	        ));

	    $html .= '<noscript>';

	    $html .= "<div><object type='text/html' data='$filemanagerurl' height='160' width='600' style='border:1px solid #000'></object></div>";

	    $html .= '</noscript>';

	    return $html;

    }

 - $html .= form_filemanager_render($options);

 + $fm = new file_manager($options);

 + $options = $fm->options;

 + $html .= $OUTPUT->render($fm);