egroupware/etemplate/inc/class.vfs_widget.inc.php

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<?php
/**
* eGroupWare eTemplate Extension - VFS Widgets
*
* @link http://www.egroupware.org
* @author Ralf Becker <RalfBecker@outdoor-training.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @copyright 2008 by RalfBecker@outdoor-training.de
* @package etemplate
* @subpackage extensions
* @version $Id$
*/
/**
* eTemplate extension to display stuff from the VFS system
*
* Contains the following widgets:
* - vfs aka File name+link: clickable filename, with evtl. clickable path-components
* - vfs-size aka File size: human readable filesize, eg. 1.4k
* - vfs-mode aka File mode: posix mode as string eg. drwxr-x---
* - vfs-mime aka File icon: mime type icon or thumbnail (if configured AND enabled in the user-prefs)
* - vfs-uid aka File owner: Owner of file, or 'root' if none
* - vfs-gid aka File group: Group of file, or 'root' if none
*
* All widgets accept as value a full path.
* vfs-mime and vfs itself also allow an array with values like stat (incl. 'path'!) as value.
* vfs-mime also allows just the mime type as value.
* All other widgets allow additionally the nummeric value from the stat call (to not call it again).
*/
class vfs_widget
{
/**
* exported methods of this class
*
* @var array
*/
var $public_functions = array(
'pre_process' => True,
);
/**
* availible extensions and there names for the editor
*
* @var array
*/
var $human_name = array(
'vfs' => 'File name+link', // clickable filename, with evtl. clickable path-components
'vfs-size' => 'File size', // human readable filesize
'vfs-mode' => 'File mode', // posix mode as string eg. drwxr-x---
'vfs-mime' => 'File icon', // mime type icon or thumbnail
'vfs-uid' => 'File owner', // Owner of file, or 'root' if none
'vfs-gid' => 'File group', // Group of file, or 'root' if none
);
/**
* pre-processing of the extension
*
* This function is called before the extension gets rendered
*
* @param string $form_name form-name of the control
* @param mixed &$value value / existing content, can be modified
* @param array &$cell array with the widget, can be modified for ui-independent widgets
* @param array &$readonlys names of widgets as key, to be made readonly
* @param mixed &$extension_data data the extension can store persisten between pre- and post-process
* @param object &$tmpl reference to the template we belong too
* @return boolean true if extra label is allowed, false otherwise
*/
function pre_process($form_name,&$value,&$cell,&$readonlys,&$extension_data,&$tmpl)
{
$type = $cell['type'];
$readonly = $cell['readonly'] || $readonlys;
// check if we have a path and not the raw value, in that case we have to do a stat first
if (in_array($type,array('vfs-size','vfs-mode','vfs-uid','vfs-gid')) && !is_numeric($value))
{
if (!$value || !($stat = egw_vfs::stat($value)))
{
if ($value) $value = lang("File '%1' not found!",$value);
$cell = etemplate::empty_cell();
return true; // allow extra value;
}
}
$cell['type'] = 'label';
switch($type)
{
case 'vfs-size': // option: add size in bytes in brackets
$value = egw_vfs::hsize($size = is_numeric($value) ? $value : $stat['size']);
if ($cell['size']) $value .= ' ('.$size.')';
$cell['type'] = 'label';
break;
case 'vfs-mode':
$value = egw_vfs::int2mode(is_numeric($value) ? $value : $stat['mode']);
list($span,$class) = explode(',',$cell['span'],2);
$class .= ($class ? ' ' : '') . 'vfsMode';
$cell['span'] = $span.','.$class;
break;
case 'vfs-uid':
case 'vfs-gid':
$uid = !is_numeric($value) ? $stat[$type=='vfs-uid'?'uid':'gid'] : $value;
$value = !$uid ? 'root' : $GLOBALS['egw']->accounts->id2name($type=='vfs-uid'?$uid:-$uid); // our internal gid's are negative!
break;
case 'vfs':
if (is_array($value))
{
$name = $value['name'];
$path = substr($value['path'],0,-strlen($name)-1);
$mime = $value['mime'];
}
else
{
$name = $value;
$path = '';
$mime = egw_vfs::mime_content_type($value);
$value = array();
}
if (($cell_name = $cell['name']) == '$row')
{
$cell_name = array_pop($arr=explode('][',substr($form_name,0,-1)));
}
$cell['name'] = '';
$cell['type'] = 'hbox';
$cell['size'] = '0,,0,0';
foreach($comps=explode('/',$name) as $n => $component)
{
if ($n)
{
$sep = soetemplate::empty_cell('label','',array('label' => '/'));
soetemplate::add_child($cell,$sep);
unset($sep);
}
$value['c'.$n] = $component;
$path .= '/'.$component;
if (egw_vfs::check_access($path,egw_vfs::READABLE)) // show link only if we have access to the file or dir
{
if ($n < count($comps)-1 || $mime == egw_vfs::DIR_MIME_TYPE)
{
$value['l'.$n] = '/index.php?menuaction=filemanager.filemanager_ui.index&path='.urlencode($path);
$target = '';
}
else
{
$value['l'.$n] = egw_vfs::download_url($path);
$target = ',,,_blank';
}
}
$comp = etemplate::empty_cell('label',$cell_name.'[c'.$n.']',array(
'size' => ',@'.$cell_name.'[l'.$n.']'.$target,
'no_lang' => true,
'span' => ',vfsFilename'
));
etemplate::add_child($cell,$comp);
unset($comp);
}
break;
case 'vfs-mime':
if (!$value)
{
$cell = etemplate::empty_cell();
return true;
}
if (!is_array($value))
{
if ($value[0] == '/' || count(explode('/',$value)) != 2)
{
$mime = egw_vfs::mime_content_type($path=$value);
}
else
{
$mime = $value;
}
}
else
{
$path = $value['path'];
$mime = $value['mime'];
}
//error_log(__METHOD__."() type=vfs-mime: value=".array2string($value).": mime=$mime, path=$path");
$cell['type'] = 'image';
$cell['label'] = $mime;
list($mime_main,$mime_sub) = explode('/',$mime);
if ($mime_main == 'egw')
{
$value = $mime_sub.'/navbar'; // egw-applications for link-widget
$cell['label'] = lang($mime_sub);
list($span,$class) = explode(',',$cell['span'],2);
$class .= ($class ? ' ' : '') . 'vfsMimeIcon';
$cell['span'] = $span.','.$class;
}
elseif($path && $mime_main == 'image' && (string)$GLOBALS['egw_info']['server']['link_list_thumbnail'] != '0' &&
(string)$GLOBALS['egw_info']['user']['preferences']['common']['link_list_thumbnail'] != '0' &&
// check the size of the image, as too big images get no icon, but a PHP Fatal error: Allowed memory size exhausted
(!is_array($value) && ($stat = egw_vfs::stat($path)) ? $stat['size'] : $value['size']) < 600000)
{
$value = $GLOBALS['egw']->link('/etemplate/thumbnail.php',array('path' => $path));
}
else
{
$value = egw_vfs::mime_icon($mime);
}
break;
default:
$value = 'Not yet implemented';
}
return true;
}
}