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egroupware_official/phpgwapi/inc/class.egw_grid_columns.inc.php

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<?php
/**
* eGroupWare API: egw action grid columns classes
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage egw action grid
* @author Andreas Stöckel
* @copyright (c) 2011 Stylite
* @version $Id$
*/
/**
* The egw_grid_columns class in this file is the PHP counterpart to the implementation
* in the JS file egw_grid_columns.js. It can generate column json data, verify
* it and store user settings for columns in the preferences
*/
class egw_json_object
{
private $supported_properties = array(
"id" => array(
"types" => "string",
"default" => ""
)
);
protected $data = array();
/**
* Merges the given properties into the supported properties array.
*
* @param array $props are the supported properties which will be added to the
* object.
*/
protected function add_supported_properties($props)
{
$this->supported_properties = array_merge($this->supported_properties, $props);
}
/**
* Reads the object data from the
*/
public function load_assoc(array $assoc)
{
/**
* Calls the magic setter for each data element
*/
foreach ($assoc as $key => $data)
{
$this->$key = $data;
}
}
/**
* Returns an associative array with the object data
*/
public function store_assoc($include_defaults = false)
{
$result = array();
foreach ($this->supported_properties as $key => $opt)
{
if (!array_key_exists("store", $opt) || $opt[$store])
{
$val = $this->$key;
if ($val != $opt["default"] || $include_defaults )
{
$result[$key] = $val;
}
}
}
return $result;
}
/**
* Magic setter function - checks whether the specified key is supported by the
* the object and the given value is of the supported type.
*/
public function __set($key,$val)
{
if (array_key_exists($key, $this->supported_properties))
{
$sup_entry = $this->supported_properties[$key];
// Test for the type (PHP-Docu says not to use gettype here)
$correct_type = true;
if (array_key_exists("types", $sup_entry))
{
$types = explode(",", $sup_entry["types"]);
foreach ($types as $type)
{
switch ($type)
{
case "bool":
$correct_type = $correct_type || is_bool($val);
break;
case "string":
$correct_type = $correct_type || is_string($val);
break;
case "int":
$correct_type = $correct_type || is_int($val);
break;
case "float":
$correct_type = $correct_type || is_float($val);
break;
}
}
}
// Set the value in the data array or call a setter function an inherited
// class might have specified
if ($correct_type)
{
if (method_exists($this, "set_".$key))
{
call_user_func(array($this, "set_".$key), $val);
}
else
{
$this->data[$key] = $val;
}
}
}
}
/**
* Magic getter function - returns the default value if the data key has not
* been set yet, returns null if the property does not exists.
*/
public function __get($key) {
if (array_key_exists($key, $this->supported_properties))
{
// Check whether the inherited class has a special getter implemented
if (method_exists($this, "get_".$key))
{
return call_user_func(array($this, "get_".$key), $val);
}
else
{
if (array_key_exists($key, $this->data))
{
return $this->data[$key];
}
else
{
return $this->supported_properties[$key]["default"];
}
}
}
return null;
}
}
/**
* Define some constants as they occur in egw_grid_columns.js
*/
define("EGW_COL_TYPE_DEFAULT", 0);
define("EGW_COL_TYPE_NAME_ICON_FIXED", 1);
define("EGW_COL_TYPE_CHECKBOX", 2);
define("EGW_COL_VISIBILITY_ALWAYS", 0);
define("EGW_COL_VISIBILITY_VISIBLE", 1);
define("EGW_COL_VISIBILITY_INVISIBLE", 2);
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define("EGW_COL_VISIBILITY_ALWAYS_NOSELECT", 3);
define("EGW_COL_SORTABLE_NONE", 0);
define("EGW_COL_SORTABLE_ALPHABETIC", 1);
define("EGW_COL_SORTABLE_NUMERICAL", 2);
define("EGW_COL_SORTABLE_NATURAL", 3);
define("EGW_COL_SORTABLE_EXTERNAL", 4);
define("EGW_COL_SORTMODE_NONE", 0);
define("EGW_COL_SORTMODE_ASC", 1);
define("EGW_COL_SORTMODE_DESC", 2);
define("EGW_COL_DEFAULT_FETCH", -10000);
/**
* Object which represents a single column
*/
class egw_grid_column extends egw_json_object
{
public function __construct($id = "")
{
// Add the supported properties
$this->add_supported_properties(array(
"width" => array("types" => "bool,int,string", "default" => false),
"maxWidth" => array("types" => "int,bool", "default" => false),
"caption" => array("types" => "string", "default" => ""),
"visibility" => array("types" => "int", "default" => EGW_COL_VISIBILITY_VISIBLE),
"visible" => array("types" => "bool", "default" => true, "store" => false),
"sortable" => array("types" => "int", "default" => EGW_COL_SORTABLE_NONE),
"sortmode" => array("types" => "int", "default" => EGW_COL_SORTMODE_NONE),
"default" => array("types" => "string,int", "default" => EGW_COL_DEFAULT_FETCH),
"type" => array("types" => "int", "default" => EGW_COL_TYPE_DEFAULT)
));
// Set the column id
$this->id = $id;
}
public function get_visible()
{
return $this->visibility != EGW_COL_VISIBILITY_INVISIBLE;
}
public function set_visible($val)
{
if ($this->visibility != EGW_COL_VISIBILITY_ALWAYS &&
$this->visibility != EGW_COL_VISIBILITY_ALWAYS_NOSELECT)
{
$this->visibility = $val ? EGW_COL_VISIBILITY_VISIBLE : EGW_COL_VISIBILITY_INVISIBLE;
}
}
}
class egw_grid_columns
{
private $app_name;
private $grid_name;
private $grid_data = array();
public function __construct($app_name, $grid_name = "main")
{
$this->app_name = $app_name;
$this->grid_name = $grid_name;
}
public function load_grid_data($data)
{
foreach ($data as $col)
{
$colobj = new egw_grid_column();
$colobj->load_assoc($col);
$this->grid_data[] = $colobj;
}
}
private function get_col($id)
{
foreach ($this->grid_data as $col)
{
if ($col->id == $id)
{
return $col;
}
}
return null;
}
/**
* Loads the given column data in the user preferences for this grid
*/
private function get_userdata()
{
if ($GLOBALS['egw_info']['user']['preferences'][$this->app_name][$this->grid_name.'_column_data'])
{
return unserialize($GLOBALS['egw_info']['user']['preferences'][$this->app_name][$this->grid_name.'_column_data']);
}
return array();
}
/**
* Stores the given column data in the user preferences for this grid
*/
private function set_userdata($data)
{
$GLOBALS['egw']->preferences->read_repository();
$GLOBALS['egw']->preferences->change($this->app_name, $this->grid_name.'_column_data',
serialize($data));
$GLOBALS['egw']->preferences->save_repository(true);
}
public function load_userdata()
{
// Read the userdata from the user preferences
$data = $this->get_userdata();
// Merge the userdata into the column data
foreach ($data as $col_id => $col_data)
{
$col = $this->get_col($col_id);
if ($col && is_array($col_data))
{
$col->load_assoc($col_data);
}
}
}
public function store_userdata($data)
{
$store_data = array();
// Check whether the specified columns exists
foreach ($data as $col_id => $col_data)
{
$col = $this->get_col($col_id);
if ($col)
{
$store_data[$col_id] = $col_data;
}
}
// Store the verified data columns
$this->set_userdata($store_data);
}
/**
* Returns the associative array containing the column data which can be
* JSON-encoded and sent to the client
*/
public function get_assoc()
{
$result = array();
foreach ($this->grid_data as $col)
{
$result[] = $col->store_assoc();
}
return $result;
}
}