egroupware/etemplate/inc/class.nextmatch_widget.inc.php
2005-04-27 20:48:53 +00:00

377 lines
14 KiB
PHP

<?php
/**************************************************************************\
* eGroupWare - eTemplate Extension - Nextmatch Widget *
* http://www.eGroupWare.org *
* Written by Ralf Becker <RalfBecker@outdoor-training.de> *
* -------------------------------------------- *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
/**
* eTemplate Extension: Widget that show only a certain number of data-rows and allows to modifiy the rows shown (scroll).
*
* This widget replaces the old nextmatch-class. It is independent of the UI,
* as it only uses etemplate-widgets and has therefor no render-function
*
* $content[$id] = array( // I = value set by the app, 0 = value on return / output
* 'get_rows' => // I method/callback to request the data for the rows eg. 'notes.bo.get_rows'
* 'filter_label' => // I label for filter (optional)
* 'filter_help' => // I help-msg for filter (optional)
* 'no_filter' => True// I disable the 1. filter
* 'no_filter2' => True// I disable the 2. filter (params are the same as for filter)
* 'no_cat' => True// I disable the cat-selectbox
* 'template' => // I template to use for the rows, if not set via options
* 'header_left' => // I template to show left of the range-value, left-aligned (optional)
* 'header_right' => // I template to show right of the range-value, right-aligned (optional)
* 'bottom_too' => True// I show the nextmatch-line (arrows, filters, search, ...) again after the rows
* 'start' => // IO position in list
* 'cat_id' => // IO category, if not 'no_cat' => True
* 'search' => // IO search pattern
* 'order' => // IO name of the column to sort after (optional for the sortheaders)
* 'sort' => // IO direction of the sort: 'ASC' or 'DESC'
* 'col_filter' => // IO array of column-name value pairs (optional for the filterheaders)
* 'filter' => // IO filter, if not 'no_filter' => True
* 'filter_no_lang' => True// I set no_lang for filter (=dont translate the options)
* 'filter2' => // IO filter2, if not 'no_filter2' => True
* 'filter2_no_lang'=> True// I set no_lang for filter2 (=dont translate the options)
* 'rows' => // O content set by callback
* 'total' => // O the total number of entries
* 'sel_options' => // O additional or changed sel_options set by the callback and merged into $tmpl->sel_options
* );
* @package etemplate
* @subpackage extensions
* @author RalfBecker-AT-outdoor-training.de
* @license GPL
*/
class nextmatch_widget
{
/**
* exported methods of this class
* @var array
*/
var $public_functions = array(
'pre_process' => True,
'post_process' => True
);
/**
* availible extensions and there names for the editor
* @var array
*/
var $human_name = array(
'nextmatch' => 'Nextmatch',
'nextmatch-sortheader' => 'Nextmatch Sortheader',
'nextmatch-filterheader' => 'Nextmatch Filterheader'
);
/**
* Constructor of the extension
*
* @param string $ui '' for html
*/
function nextmatch_widget($ui)
{
}
/**
* returns last part of a form-name
* @internal
*/
function last_part($name)
{
$parts = explode('[',str_replace(']','',$name));
return $parts[count($parts)-1];
}
/**
* pre-processing of the extension
*
* This function is called before the extension gets rendered
*
* @param string $name form-name of the control
* @param mixed &$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($name,&$value,&$cell,&$readonlys,&$extension_data,&$tmpl)
{
$nm_global = &$GLOBALS['phpgw_info']['etemplate']['nextmatch'];
//echo "<p>nextmatch_widget.pre_process(name='$name',type='$cell[type]'): value = "; _debug_array($value);
//echo "<p>nextmatch_widget.pre_process(name='$name',type='$cell[type]'): nm_global = "; _debug_array($nm_global);
$extension_data = array(
'type' => $cell['type']
);
switch ($cell['type'])
{
case 'nextmatch-sortheader':
$cell['type'] = 'button';
$cell['onchange'] = True;
if (!$cell['help'])
{
$cell['help'] = 'click to order after that criteria';
}
if ($this->last_part($name) == $nm_global['order']) // we're the active column
{
$cell[1] = $cell;
$cell[1]['span'] .= ',activ_sortcolumn';
$cell[2] = $tmpl->empty_cell('image',$nm_global['sort'] != 'DESC' ? 'down' : 'up');
$cell['type'] = 'hbox';
$cell['size'] = '2,0,0';
$cell['name'] = $cell['label'] = '';
}
else
{
$cell['span'] .= ',inactiv_sortcolumn';
}
return True;
case 'nextmatch-filterheader':
$cell['type'] = 'select';
if (!$cell['size'])
{
$cell['size'] = 'All';
}
if (!$cell['help'])
{
$cell['help'] = 'select which values to show';
}
$cell['onchange'] = True;
$extension_data['old_value'] = $value = $nm_global['col_filter'][$this->last_part($name)];
return True;
}
list($app,$class,$method) = explode('.',$value['get_rows']);
if ($app && $class)
{
if (is_object($GLOBALS[$class])) // use existing instance (put there by a previous CreateObject)
{
$obj =& $GLOBALS[$class];
}
else
{
$obj =& CreateObject($app.'.'.$class);
}
}
if (!is_object($obj) || !method_exists($obj,$method))
{
$GLOBALS['phpgw_info']['etemplate']['validation_errors'][$name] = "nextmatch_widget::pre_process($cell[name]): '$value[get_rows]' is no valid method !!!";
}
else
{
$total = $value['total'] = $obj->$method($value,$value['rows'],$readonlys['rows']);
// allow the get_rows function to override / set sel_options
if (isset($value['rows']['sel_options']) && is_array($value['rows']['sel_options']))
{
$tmpl->sel_options = array_merge($tmpl->sel_options,$value['rows']['sel_options']);
unset($value['rows']['sel_options']);
}
}
if ($value['start'] > $total)
{
$value['start'] = 0;
$total = $obj->$method($value,$value['rows'],$readonlys['rows']);
}
if (is_array($value['rows'][0])) // fixed 0 based arrays
{
array_unshift($value['rows'],false);
}
list($template,$options) = explode(',',$cell['size']);
if ($template) // template name can be supplied either in $value['template'] or the options-field
{
$value['template'] = $template;
}
if (!is_object($value['template']))
{
$value['template'] =& new etemplate($value['template'],$tmpl->as_array());
}
if ($total < 1)
{
$value['template']->data[0]['h'.$value['template']->rows] .= ',1'; // disable the last data row
}
$max = $GLOBALS['phpgw_info']['user']['preferences']['common']['maxmatchs'];
if ($total <= $max && $options && $value['search'] == '' &&
($value['no_cat'] || !$value['cat_id']) &&
($value['no_filter'] || !$value['filter'] || $value['filter'] == 'none') &&
($value['no_filter2'] || !$value['filter2'] || $value['filter2'] == 'none'))
{ // disable whole nextmatch line if no scrolling necessary
if ($value['header_left'] || $value['header_right'])
{
$nextmatch = new etemplate('etemplate.nextmatch_widget.header_only');
$cell['size'] = $cell['name'];
$cell['obj'] = &$nextmatch;
$cell['name'] = $nextmatch->name;
}
else
{
$cell['size'] = $cell['name'].'[rows]';
$cell['obj'] = &$value['template'];
$cell['name'] = $value['template']->name;
}
}
else
{
$nextmatch =& new etemplate('etemplate.nextmatch_widget');
// keep the editor away from the generated tmpls
$nextmatch->no_onclick = true;
foreach(array('no_cat'=>'cat_id','no_filter'=>'filter','no_filter2'=>'filter2') as $val_name => $cell_name)
{
if (isset($value[$val_name])) $nextmatch->disable_cells($cell_name,$value[$val_name]);
}
foreach(array('header_left','header_right') as $name)
{
if (!$value[$name]) $nextmatch->disable_cells('@'.$name);
}
foreach(array('filter','filter2') as $cell_name)
{
if (isset($value[$cell_name.'_no_lang'])) $nextmatch->set_cell_attribute($cell_name,'no_lang',$value[$cell_name.'_no_lang']);
}
$start = $value['start'];
$end = $start+$max > $total ? $total : $start+$max;
$value['range'] = $total ? (1+$start) . ' - ' . $end : '0';
$nextmatch->set_cell_attribute('first','readonly',$start <= 0);
$nextmatch->set_cell_attribute('left', 'readonly',$start <= 0);
$nextmatch->set_cell_attribute('right','readonly',$start+$max >= $total);
$nextmatch->set_cell_attribute('last', 'readonly',$start+$max >= $total);
$cell['size'] = $cell['name'];
$cell['obj'] = &$nextmatch;
$cell['name'] = $nextmatch->name;
}
$cell['type'] = 'template';
$cell['label'] = $cell['help'] = '';
// save values in persistent extension_data to be able use it in post_process
$extension_data += $value;
foreach(array('sort','order','col_filter') as $n) // save them for the sortheader
{
$nm_global[$n] = $value[$n];
}
$value['bottom'] = $value; // copy the values for the bottom-bar
return False; // NO extra Label
}
/**
* postprocessing method, called after the submission of the form
*
* It has to copy the allowed/valid data from $value_in to $value, otherwise the widget
* will return no data (if it has a preprocessing method). The framework insures that
* the post-processing of all contained widget has been done before.
*
* Only used by select-dow so far
*
* @param string $name form-name of the widget
* @param mixed &$value the extension returns here it's input, if there's any
* @param mixed &$extension_data persistent storage between calls or pre- and post-process
* @param boolean &$loop can be set to true to request a re-submision of the form/dialog
* @param object &$tmpl the eTemplate the widget belongs too
* @param mixed &value_in the posted values (already striped of magic-quotes)
* @return boolean true if $value has valid content, on false no content will be returned!
*/
function post_process($name,&$value,&$extension_data,&$loop,&$tmpl,$value_in)
{
$nm_global = &$GLOBALS['phpgw_info']['etemplate']['nextmatch'];
//echo "<p>nextmatch_widget.post_process(name='$name',value_in='$value_in',order='$nm_global[order]'): value = "; _debug_array($value);
switch($extension_data['type'])
{
case 'nextmatch-sortheader':
if ($value_in)
{
$nm_global['order'] = $this->last_part($name);
}
return False; // dont report value back, as it's in the wrong location (rows)
case 'nextmatch-filterheader':
if ($value_in != $extension_data['old_value'])
{
$nm_global['filter'][$this->last_part($name)] = $value_in;
}
return False; // dont report value back, as it's in the wrong location (rows)
}
$old_value = $extension_data;
$max = $GLOBALS['phpgw_info']['user']['preferences']['common']['maxmatchs'];
$value['start'] = $old_value['start']; // need to be set, to be reported back
if (is_array($value['bottom'])) // we have a second bottom-bar
{
$inputs = array('search','cat_id','filter','filter2');
foreach($inputs as $name)
{
if (isset($value['bottom'][$name]) && $value[$name] == $old_value[$name])
{
//echo "value[$name] overwritten by bottom-value[$name]='".$value['bottom'][$name]."', old_value[$name]='".$old_value[$name]."'<br>\n";
$value[$name] = $value['bottom'][$name];
}
}
$buttons = array('start_search','first','left','right','last');
foreach($buttons as $name)
{
if (isset($value['bottom'][$name]) && $value['bottom'][$name])
{
$value[$name] = $value['bottom'][$name];
}
}
unset($value['bottom']);
}
if ($value['start_search'] || $value['search'] != $old_value['search'] ||
isset($value['cat_id']) && $value['cat_id'] != $old_value['cat_id'] ||
isset($value['filter']) && $value['filter'] != $old_value['filter'] ||
isset($value['filter2']) && $value['filter2'] != $old_value['filter2'])
{
//echo "<p>search='$old_value[search]'->'$value[search]', filter='$old_value[filter]'->'$value[filter]', filter2='$old_value[filter2]'->'$value[filter2]'<br>";
//echo "new filter --> loop</p>";
//echo "value ="; _debug_array($value);
//echo "old_value ="; _debug_array($old_value);
$loop = True;
}
elseif ($value['first'])
{
$value['start'] = 0;
unset($value['first']);
$loop = True;
}
elseif ($value['left'])
{
$value['start'] = $old_value['start'] - $max;
unset($value['left']);
$loop = True;
}
elseif ($value['right'])
{
$value['start'] = $old_value['start'] + $max;
unset($value['right']);
$loop = True;
}
elseif ($value['last'])
{
$value['start'] = (int) (($old_value['total']-2) / $max) * $max;
unset($value['last']);
$loop = True;
}
elseif ($nm_global['order'])
{
$value['order'] = $nm_global['order'];
$value['sort'] = $old_value['order'] == $nm_global['order'] && $old_value['sort']!='DESC'?'DESC':'ASC';
$loop = True;
}
elseif ($nm_global['filter'])
{
if (!is_array($value['col_filter'])) $value['col_filter'] = array();
$value['col_filter'] += $nm_global['filter'];
$loop = True;
}
return True;
}
}