<?php
/***************************************************************
*  Copyright notice
*
*  (c) 1999-2005 Kasper Skaarhoj (kasperYYYY@typo3.com)
*  All rights reserved
*
*  This script is part of the TYPO3 project. The TYPO3 project 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.
*
*  The GNU General Public License can be found at
*  http://www.gnu.org/copyleft/gpl.html.
*  A copy is found in the textfile GPL.txt and important notices to the license
*  from the author is found in LICENSE.txt distributed with these scripts.
*
*
*  This script is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/
/**
 * Generate a folder tree
 *
 * $Id: class.t3lib_foldertree.php 955 2005-12-28 00:49:12Z mundaun $
 * Revised for TYPO3 3.6 November/2003 by Kasper Skaarhoj
 *
 * @author	Kasper Skaarhoj <kasperYYYY@typo3.com>
 * @coauthor	Ren Fritz <r.fritz@colorcube.de>
 */
/**
 * [CLASS/FUNCTION INDEX of SCRIPT]
 *
 *
 *
 *   82: class t3lib_folderTree extends t3lib_treeView
 *   89:     function t3lib_folderTree()
 *  107:     function wrapIcon($icon,$row)
 *  130:     function wrapTitle($title,$row,$bank=0)
 *  145:     function getId($v)
 *  155:     function getJumpToParam($v)
 *  167:     function getTitleStr($row,$titleLen=30)
 *  177:     function getBrowsableTree()
 *  240:     function getFolderTree($files_path, $depth=999, $depthData='')
 *  320:     function getCount($files_path)
 *  336:     function initializePositionSaving()
 *
 * TOTAL FUNCTIONS: 10
 * (This index is automatically created/updated by the extension "extdeveval")
 *
 */

require_once (PATH_t3lib.'class.t3lib_treeview.php');














/**
 * Extension class for the t3lib_treeView class, specially made for browsing folders in the File module
 *
 * @author	Kasper Skaarhoj <kasperYYYY@typo3.com>
 * @coauthor	Ren Fritz <r.fritz@colorcube.de>
 * @package TYPO3
 * @subpackage t3lib
 * @see class t3lib_treeView
 */
class t3lib_folderTree extends t3lib_treeView  {

	/**
	 * Constructor function of the class
	 *
	 * @return	void
	 */
	function t3lib_folderTree()	{
		parent::init();

		$this->MOUNTS = $GLOBALS['FILEMOUNTS'];

		$this->treeName='folder';
		$this->titleAttrib=''; //don't apply any title
		$this->domIdPrefix = 'folder';
	}

	/**
	 * Wrapping the folder icon
	 *
	 * @param	string		The image tag for the icon
	 * @param	array		The row for the current element
	 * @return	string		The processed icon input value.
	 * @access private
	 */
	function wrapIcon($icon,$row)	{
			// Add title attribute to input icon tag
		$theFolderIcon = $this->addTagAttributes($icon,($this->titleAttrib ? $this->titleAttrib.'="'.$this->getTitleAttrib($row).'"' : ''));

			// Wrap icon in click-menu link.
		if (!$this->ext_IconMode)	{
			$theFolderIcon = $GLOBALS['TBE_TEMPLATE']->wrapClickMenuOnIcon($theFolderIcon,$row['path'],'',0);
		} elseif (!strcmp($this->ext_IconMode,'titlelink'))	{
			$aOnClick = 'return jumpTo(\''.$this->getJumpToParam($row).'\',this,\''.$this->domIdPrefix.$this->getId($row).'\','.$this->bank.');';
			$theFolderIcon='<a href="#" onclick="'.htmlspecialchars($aOnClick).'">'.$theFolderIcon.'</a>';
		}
		return $theFolderIcon;
	}

	/**
	 * Wrapping $title in a-tags.
	 *
	 * @param	string		Title string
	 * @param	string		Item record
	 * @param	integer		Bank pointer (which mount point number)
	 * @return	string
	 * @access private
	 */
	function wrapTitle($title,$row,$bank=0)	{
		$aOnClick = 'return jumpTo(\''.$this->getJumpToParam($row).'\',this,\''.$this->domIdPrefix.$this->getId($row).'\','.$bank.');';
		$CSM = '';
		if ($GLOBALS['TYPO3_CONF_VARS']['BE']['useOnContextMenuHandler'])	{
			$CSM = ' oncontextmenu="'.htmlspecialchars($GLOBALS['TBE_TEMPLATE']->wrapClickMenuOnIcon('',$row['path'],'',0,'','',TRUE)).'"';
		}
		return '<a href="#" title="'.htmlspecialchars($row['title']).'" onclick="'.htmlspecialchars($aOnClick).'"'.$CSM.'>'.$title.'</a>';
	}

	/**
	 * Returns the id from the record - for folders, this is an md5 hash.
	 *
	 * @param	array		Record array
	 * @return	integer		The "uid" field value.
	 */
	function getId($v)	{
		return t3lib_div::md5Int($v['path']);
	}

	/**
	 * Returns jump-url parameter value.
	 *
	 * @param	array		The record array.
	 * @return	string		The jump-url parameter.
	 */
	function getJumpToParam($v)	{
		return rawurlencode($v['path']);
	}

	/**
	 * Returns the title for the input record. If blank, a "no title" labele (localized) will be returned.
	 * '_title' is used for setting an alternative title for folders.
	 *
	 * @param	array		The input row array (where the key "_title" is used for the title)
	 * @param	integer		Title length (30)
	 * @return	string		The title.
	 */
	function getTitleStr($row,$titleLen=30)	{
		return $row['_title'] ? $row['_title'] : parent::getTitleStr($row,$titleLen);
	}

	/**
	 * Will create and return the HTML code for a browsable tree of folders.
	 * Is based on the mounts found in the internal array ->MOUNTS (set in the constructor)
	 *
	 * @return	string		HTML code for the browsable tree
	 */
	function getBrowsableTree()	{

			// Get stored tree structure AND updating it if needed according to incoming PM GET var.
		$this->initializePositionSaving();

			// Init done:
		$titleLen=intval($this->BE_USER->uc['titleLen']);
		$treeArr=array();

			// Traverse mounts:
		foreach($this->MOUNTS as $key => $val)	{
			$md5_uid = md5($val['path']);
			$specUID=hexdec(substr($md5_uid,0,6));
			$this->specUIDmap[$specUID]=$val['path'];

				// Set first:
			$this->bank=$val['nkey'];
			$isOpen = $this->stored[$val['nkey']][$specUID] || $this->expandFirst;
			$this->reset();

				// Set PM icon:
			$cmd=$this->bank.'_'.($isOpen?'0_':'1_').$specUID.'_'.$this->treeName;
			$icon='<img'.t3lib_iconWorks::skinImg($this->backPath,'gfx/ol/'.($isOpen?'minus':'plus').'only.gif','width="18" height="16"').' alt="" />';
			$firstHtml= $this->PM_ATagWrap($icon,$cmd);

			switch($val['type'])	{
				case 'user':	$icon = 'gfx/i/_icon_ftp_user.gif';	break;
				case 'group':	$icon = 'gfx/i/_icon_ftp_group.gif'; break;
				default:		$icon = 'gfx/i/_icon_ftp.gif'; break;
			}

				// Preparing rootRec for the mount
			$firstHtml.=$this->wrapIcon('<img'.t3lib_iconWorks::skinImg($this->backPath,$icon,'width="18" height="16"').' alt="" />',$val);
				$row=array();
				$row['path']=$val['path'];
				$row['uid']=$specUID;
				$row['title']=$val['name'];

				// Add the root of the mount to ->tree
			$this->tree[]=array('HTML'=>$firstHtml,'row'=>$row,'bank'=>$this->bank);

				// If the mount is expanded, go down:
			if ($isOpen)	{
					// Set depth:
				$depthD='<img'.t3lib_iconWorks::skinImg($this->backPath,'gfx/ol/blank.gif','width="18" height="16"').' alt="" />';
				$this->getFolderTree($val['path'],999,$depthD);
			}

				// Add tree:
			$treeArr=array_merge($treeArr,$this->tree);
		}
		return $this->printTree($treeArr);
	}

	/**
	 * Fetches the data for the tree
	 *
	 * @param	string		Abs file path
	 * @param	integer		Max depth (recursivity limit)
	 * @param	string		HTML-code prefix for recursive calls.
	 * @return	integer		The count of items on the level
	 * @see getBrowsableTree()
	 */
	function getFolderTree($files_path, $depth=999, $depthData='')	{

			// This generates the directory tree
		$dirs = t3lib_div::get_dirs($files_path);

		$c=0;
		if (is_array($dirs))	{
			$depth=intval($depth);
			$HTML='';
			$a=0;
			$c=count($dirs);
			sort($dirs);

			foreach($dirs as $key => $val)	{
				$a++;
				$this->tree[]=array();		// Reserve space.
				end($this->tree);
				$treeKey = key($this->tree);	// Get the key for this space
				$LN = ($a==$c)?'blank':'line';

				$val = ereg_replace('^\./','',$val);
				$title = $val;
				$path = $files_path.$val.'/';
				$webpath=t3lib_BEfunc::getPathType_web_nonweb($path);

				$md5_uid = md5($path);
				$specUID=hexdec(substr($md5_uid,0,6));
				$this->specUIDmap[$specUID]=$path;
				$row=array();
				$row['path']=$path;
				$row['uid']=$specUID;
				$row['title']=$title;

				if ($depth>1 && $this->expandNext($specUID))	{
					$nextCount=$this->getFolderTree(
						$path,
						$depth-1,
						$this->makeHTML ? $depthData.'<img'.t3lib_iconWorks::skinImg($this->backPath,'gfx/ol/'.$LN.'.gif','width="18" height="16"').' alt="" />' : ''
					);
					$exp=1;		// Set "did expand" flag
				} else {
					$nextCount=$this->getCount($path);
					$exp=0;		// Clear "did expand" flag
				}

					// Set HTML-icons, if any:
				if ($this->makeHTML)	{
					$HTML=$depthData.$this->PMicon($row,$a,$c,$nextCount,$exp);

					$icon = 'gfx/i/_icon_'.$webpath.'folders.gif';
					if ($val=='_temp_')	{
						$icon = 'gfx/i/sysf.gif';
						$row['title']='TEMP';
						$row['_title']='<b>TEMP</b>';
					}
					if ($val=='_recycler_')	{
						$icon = 'gfx/i/recycler.gif';
						$row['title']='RECYCLER';
						$row['_title']='<b>RECYCLER</b>';
					}
					$HTML.=$this->wrapIcon('<img'.t3lib_iconWorks::skinImg($this->backPath,$icon,'width="18" height="16"').' alt="" />',$row);
				}

					// Finally, add the row/HTML content to the ->tree array in the reserved key.
				$this->tree[$treeKey] = Array(
					'row'=>$row,
					'HTML'=>$HTML,
					'bank'=>$this->bank
				);
			}
		}
		return $c;
	}

	/**
	 * Counts the number of directories in a file path.
	 *
	 * @param	string		File path.
	 * @return	integer
	 */
	function getCount($files_path)	{
			// This generates the directory tree
		$dirs = t3lib_div::get_dirs($files_path);
		$c=0;
		if (is_array($dirs))	{
			$c=count($dirs);
		}
		return $c;
	}

	/**
	 * Get stored tree structure AND updating it if needed according to incoming PM GET var.
	 *
	 * @return	void
	 * @access private
	 */
	function initializePositionSaving()	{
			// Get stored tree structure:
		$this->stored=unserialize($this->BE_USER->uc['browseTrees'][$this->treeName]);

			// Mapping md5-hash to shorter number:
		$hashMap=array();
		foreach($this->MOUNTS as $key => $val)	{
			$nkey = hexdec(substr($key,0,4));
			$hashMap[$nkey]=$key;
			$this->MOUNTS[$key]['nkey']=$nkey;
		}

			// PM action:
			// (If an plus/minus icon has been clicked, the PM GET var is sent and we must update the stored positions in the tree):
		$PM = explode('_',t3lib_div::_GP('PM'));	// 0: mount key, 1: set/clear boolean, 2: item ID (cannot contain "_"), 3: treeName
		if (count($PM)==4 && $PM[3]==$this->treeName)	{
			if (isset($this->MOUNTS[$hashMap[$PM[0]]]))	{
				if ($PM[1])	{	// set
					$this->stored[$PM[0]][$PM[2]]=1;
					$this->savePosition($this->treeName);
				} else {	// clear
					unset($this->stored[$PM[0]][$PM[2]]);
					$this->savePosition($this->treeName);
				}
			}
		}
	}
}

if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/class.t3lib_foldertree.php'])	{
	include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/class.t3lib_foldertree.php']);
}
?>