egroupware_official/etemplate/inc/class.etemplate_widget_link.inc.php

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<?php
/**
* EGroupware - eTemplate serverside of linking widgets
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link http://www.egroupware.org
* @author Nathan Gray
* @copyright 2011 Nathan Gray
* @version $Id$
*/
/**
* eTemplate link widgets
* Deals with creation and display of links between entries in various participating egw applications
*/
class etemplate_widget_link extends etemplate_widget
{
public $public_functions = array(
'download_zip' => true
);
protected $legacy_options = 'only_app';
/**
* Constructor
*
* @param string|XMLReader $xml string with xml or XMLReader positioned on the element to construct
* @throws egw_exception_wrong_parameter
*/
public function __construct($xml = '')
{
if($xml) {
parent::__construct($xml);
}
}
/* Changes all link widgets to template
protected static $transformation = array(
'type' => array(
'link-list'=>array(
'value' => array('__callback__'=>'get_links'),
'type' => 'template',
'id' => 'etemplate.link_widget.list'
)
),
);
*/
/**
* Set up what we know on the server side.
*
* Set the options for the application select.
*
* @param string $cname
*/
public function beforeSendToClient($cname)
{
$attrs = $this->attrs;
$form_name = self::form_name($cname, $this->id);
$value =& self::get_array(self::$request->content, $form_name, true);
if($value && !is_array($value) && !$this->attrs['only_app'])
{
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// Try to explode
if(count(explode(':',$value)) < 2) {
throw new egw_exception_wrong_parameter("Wrong value sent to $this, needs to be an array. ".array2string($value));
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}
list($app, $id) = explode(':', $value,2);
$value = array('app' => $app, 'id' => $id);
}
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elseif (!$value)
{
return;
}
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// ToDo: implement on client-side
if (!$attrs['help']) self::setElementAttribute($form_name, 'help', 'view this linked entry in its application');
if($attrs['type'] == 'link-list') {
$app = $value['to_app'];
$id = $value['to_id'];
$links = egw_link::get_links($app,$id,'','link_lastmod DESC',true, $value['show_deleted']);
foreach($links as $link) {
$value[] = $link;
}
}
}
/**
* Find links that match the given parameters
*/
public static function ajax_link_search($app, $type, $pattern, $options=array()) {
$options['type'] = $type ? $type : $options['type'];
$links = egw_link::query($app, $pattern, $options);
$links = array_combine(array_map(create_function('$k', 'return (string)" ".$k;'), array_keys($links)), $links);
$response = egw_json_response::get();
$response->data($links);
}
/**
* Return title for a given app/id pair
*
* @param string $app
* @param string|int $id
* @return string|boolean string with title, boolean false of permission denied or null if not found
*/
public static function ajax_link_title($app,$id)
{
$title = egw_link::title($app, $id);
//error_log(__METHOD__."('$app', '$id') = ".array2string($title));
egw_json_response::get()->data($title);
}
/**
* Return titles for all given app and id's
*
* @param array $app_ids array with app => array(id, ...) pairs
* @return array with app => id => title
*/
public static function ajax_link_titles(array $app_ids)
{
$response = array();
foreach($app_ids as $app => $ids)
{
if(count($ids))
{
$response[$app] = egw_link::titles($app, $ids);
}
else
{
error_log(__METHOD__."(".array2string($app_ids).") got invalid title request: app=$app, ids=" . array2string($ids));
}
}
egw_json_response::get()->data($response);
}
/**
* Create links
*/
public static function ajax_link($app, $id, Array $links) {
// Files need to know full path in tmp directory
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foreach($links as $key => $link) {
if($link['app'] == egw_link::VFS_APPNAME) {
if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
{
$path = $GLOBALS['egw_info']['server']['temp_dir'] . '/' . $link['id'];
}
else
{
$path = $link['id'].'+';
}
$link['tmp_name'] = $path;
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$links[$key]['id'] = $link;
}
}
$result = egw_link::link($app, $id, $links);
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$response = egw_json_response::get();
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$response->data(is_array($id) ? $id : $result !== false);
}
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public function ajax_link_list($value) {
$app = $value['to_app'];
$id = $value['to_id'];
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$links = egw_link::get_links($app,$id,$value['only_app'],'link_lastmod DESC',true, $value['show_deleted']);
foreach($links as &$link)
{
$link['title'] = egw_link::title($link['app'],$link['id'],$link);
if ($link['app'] == egw_link::VFS_APPNAME)
{
$link['target'] = '_blank';
$link['label'] = 'Delete';
$link['help'] = lang('Delete this file');
if ($GLOBALS['egw_info']['user']['preferences']['common']['link_list_format'] != 'text')
{
$link['title'] = preg_replace('/: ([^ ]+) /',': ',$link['title']); // remove mime-type, it's alread in the icon
}
$link['title'] = egw_vfs::decodePath($link['title']);
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$link['icon'] = egw_link::vfs_path($link['app2'],$link['id2'],$link['id'],true);
$link['download_url'] = egw_vfs::download_url($link['icon']);
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}
else
{
$link['icon'] = egw_link::get_registry($link['app'], 'icon');
$link['label'] = 'Unlink';
$link['help'] = lang('Remove this link (not the entry itself)');
}
}
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$response = egw_json_response::get();
// Strip keys, unneeded and cause index problems on the client side
$response->data(array_values($links));
}
/**
* Allow changing of comment after link is created
*/
public static function ajax_link_comment($link_id, $comment)
{
$result = false;
if((int)$link_id > 0)
{
solink::update_remark((int)$link_id, $comment);
$result = true;
}
else
{
$link = egw_link::get_link((int)$link_id);
if($link && $link['app'] == egw_link::VFS_APPNAME)
{
$file = egw_link::list_attached($link['app2'],$link['id2']);
$file = $file[(int)$link_id];
$path = egw_link::vfs_path($link['app2'],$link['id2'],$file['id']);
$result = egw_vfs::proppatch($path, array(array('name' => 'comment', 'val' => $comment)));
}
}
$response = egw_json_response::get();
$response->data($result !== false);
}
/**
* Symlink an existing file in filemanager
*/
public static function link_existing($app_id, $files)
{
list($app, $id) = explode(':', $app_id);
if(!is_array($files)) $files = array($files);
foreach($files as $target) {
egw_link::link_file($app, $id, $target);
}
}
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public function ajax_delete($value) {
$response = egw_json_response::get();
$response->data(egw_link::unlink($value));
}
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/**
* Download the files linked to the given entry as one ZIP.
*
* Because of the $public_functions entry, this is callable as a menuaction.
* This lets us just open the URL with app & id parametrs and get a ZIP. If
* the entry has no linked files, the ZIP will still be returned, but it will
* be empty.
*/
public function download_zip()
{
$app = $_GET['app'];
$id = $_GET['id'];
if(egw_link::file_access($app, $id))
{
$app_path = egw_link::vfs_path($app,$id,'',true);
// Pass the files linked, not the entry path
$files = egw_vfs::find($app_path);
if($files[0] == $app_path)
{
array_shift($files);
}
egw_vfs::download_zip($files, egw_link::title($app, $id));
common::egw_exit();
}
}
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/**
* Validate input
*
* Following attributes get checked:
* - needed: value must NOT be empty
* - min, max: int and float widget only
* - maxlength: maximum length of string (longer strings get truncated to allowed size)
* - preg: perl regular expression incl. delimiters (set by default for int, float and colorpicker)
* - int and float get casted to their type
*
* @param string $cname current namespace
* @param array $expand values for keys 'c', 'row', 'c_', 'row_', 'cont'
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* @param array $content
* @param array &$validated=array() validated content
*/
public function validate($cname, array $expand, array $content, &$validated=array())
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{
$form_name = self::form_name($cname, $this->id, $expand);
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if (!$this->is_readonly($cname, $form_name))
{
$value = $value_in =& self::get_array($content, $form_name);
// Link widgets can share IDs, make sure to preserve values from others
$already = self::get_array($validated,$form_name);
if($already != null)
{
$value = array_merge($value,$already);
}
// Automatically do link if user selected entry but didn't click 'Link' button
$link = self::get_array($content, self::form_name($cname, $this->id . '_link_entry'));
if($this->type =='link-to' && is_array($link) && $link['app'] && $link['id'] )
{
// Do we have enough information to link automatically?
if(is_array($value) && $value['to_id'])
{
$result = egw_link::link($value['to_app'], $value['to_id'], $link['app'], $link['id']);
}
else
{
// Not enough information, leave it to the application
if(!is_array($value['to_id'])) $value['to_id'] = array();
$value['to_id'][] = $link;
}
}
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// Look for files - normally handled by ajax
$files = self::get_array($content, self::form_name($cname, $this->id . '_file'));
if(is_array($files) && !(is_array($value) && $value['to_id']))
{
$value = array();
if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
{
$path = $GLOBALS['egw_info']['server']['temp_dir'] . '/';
}
else
{
$path = '';
}
foreach($files as $name => $attrs)
{
if(!is_array($value['to_id'])) $value['to_id'] = array();
$value['to_id'][] = array(
'app' => egw_link::VFS_APPNAME,
'id' => array(
'name' => $attrs['name'],
'type' => $attrs['type'],
'tmp_name' => $path.$name
)
);
}
}
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$valid =& self::get_array($validated, $form_name, true);
$valid = $value;
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//error_log($this);
//error_log(" " . array2string($valid));
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}
}
}