<?php
// Script created by Philip Arkcoll,
// modified by Rene Kanzler <rk (at) cosmomill (dot) de>
// modified by Aart-Jan Boor, Wemag Advisering, www.wemag.nl

/**
 * This file is part of Wemag Tree Browse.
 *
 * Wemag Wemag Tree Browse 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 3 of the License, or
 * (at your option) any later version.
 *
 * Wemag Tree Browse 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with Wemag Tree Browse.  If not, see <http://www.gnu.org/licenses/>.
 */

//prevent memory shortage
ini_set('memory_limit',"512M");

require_once(KT_LIB_DIR . '/plugins/plugin.inc.php');
require_once(KT_LIB_DIR . '/browse/PartialQuery.inc.php');
require_once(KT_LIB_DIR . '/documentmanagement/Document.inc');

/**
 * Special folder action to provide tree view/ table view switching
 *
 */
class WemagTreeBrowsePluginDisableEnableAction extends KTFolderAction{
	var $sName = 'demo.WemagTreeBrowsePlugin.actions.folder.disableenable';
	var $sPermissionName = 'ktcore.permissions.read';

	function getDisplayName(){
		if ($_COOKIE['kt_usetreeview']==1) {
			return _kt('Vista de tabla');
		} else {
			return _kt('Vista de árbol');
		}
	}

	function do_main(){
		/*if (!isset($_COOKIE['kt_usetreeview'])) {
			setcookie("kt_usetableview",1,time()+31536000);
		}*/
		if($_COOKIE['kt_usetreeview']==0){
			setcookie('kt_usetreeview',1,time()+31536000);
		} else {
			setcookie('kt_usetreeview',1,time()-31536000);
		}
		header("Location: browse.php?fFolderId=".$this->oFolder->iId);
		exit;
	}

}


/**
 * Folder action, which does not actually displays in the menu, but takes care
 * of showing the tree instead of the table
 *
 */
class WemagTreeBrowsePluginFolderAction extends KTFolderAction{
	// The namespace for this action
	var $sName = 'demo.WemagTreeBrowsePlugin.actions.folder.tree';

	// The permission required to see this action on the menu
	var $sPermissionName = 'ktcore.permissions.read';

	//To make sure the first folder is not collapsed
	var $foldercount = 0;

	/**
	 * Check if the tree view needs to be displayed
	 *
	 */
	function getDisplayName() {		
		//don't show anything if table view is prefered
		if ($_COOKIE['kt_usetreeview'] == 1) {
			//change the menu "Browse" URL
			$this->oPage->menu['browse']['url']="action.php?kt_path_info=demo.WemagTreeBrowsePlugin.actions.folder.tree&fFolderId=1";
			//redirect if required
			if(strpos($_SERVER['PHP_SELF'],'browse.ph')){
				header("Location: action.php?kt_path_info=demo.WemagTreeBrowsePlugin.actions.folder.tree&fFolderId=".$this->oFolder->iId);
				exit;
			}
		}
		
	}

	/**
	 * show the actual tree
	 *
	 * @return the tree HTML code
	 */
	function do_main() {
		$oTemplating =& KTTemplating::getSingleton();
		//only show a partial tree
		if($_GET['subtree'] == 1){
			$oTemplate = $oTemplating->loadTemplate('view_folder_children');
			$aChildren = &$this->_getChildren($this->oFolder);
			$aTemplateData = array('context' => $this,
				       'oFolder' => $this->oFolder,
				       'folders' => $aChildren['folders'],
				       'documents' => $aChildren['documents']);
			echo $oTemplate->render($aTemplateData);
			exit;
		}
		 
		// Get the templating engine and load the 'view' template
		$oTemplate = $oTemplating->loadTemplate('view');

		// All we have to pass is the current context
		$aTemplateData = array('context' => $this);

		// And render. The template will call the 'renderFolder'
		// method on $this.
		return $oTemplate->render($aTemplateData);
	}

	/**
	 * 'renderFolder' is used by the template on each folder it gets.
	 *
	 * @param $oFolder Folder object to show
	 * @param boolean $children if 1 children are shown
	 * @return template HTML
	 */
	function renderFolder($oFolder, $children = true) {
		$oTemplating =& KTTemplating::getSingleton();

		if($children == true){
			// Get the child documents and folders of the folder passed.
			$aChildren = &$this->_getChildren($oFolder);
			$oTemplate = $oTemplating->loadTemplate('view_folder');
		}else{
			$oTemplate = $oTemplating->loadTemplate('view_folder_single');
		}
			
		// And pass them, along with the folder passed, to the
		// template.
		$aTemplateData = array('context' => $this,
				       'oFolder' => $oFolder,
				       'folders' => $aChildren['folders'],
				       'documents' => $aChildren['documents']);


		return $oTemplate->render($aTemplateData);
	}

	// '_getChildren' is a helper method that returns array of
	// Document or Folder objects that are visible to the current
	// user.
	function &_getChildren($oFolder) {

		// A BrowseQuery is the easiest way to get a list of document
		// or folders visible to a user. It is passed a base folder, a
		// user to check permissions against, and (optionally) an
		// array of options that affect how it is performed. In this
		// case, we pass no options. BrowseQuery is defined in
		// /lib/browse/PartialQuery.inc.php, along with a number of
		// other useful queries.
		$oQuery = new BrowseQuery($oFolder->getId(), $this->oUser);

		// 'getFolders' and 'getDocuments' use the same calling
		// signature:
		// 10000: the number of items to return
		// 0: the offset from the beginning of the list (for batching)
		// 'name': the column to sort on
		// 'asc': the direction of the sort.
		// Both functions return IDs.

		// For both folders and documents, we iterate through the IDs
		// returned and build an array of objects.
		foreach($oQuery->getFolders(10000, 0, 'name', 'asc') as $aFolderId) {
			$aFolders[] = Folder::get($aFolderId['id']);
		}

		foreach($oQuery->getDocuments(10000, 0, 'name', 'asc') as $aDocumentId) {
			$aDocuments[] = Document::get($aDocumentId['id']);
		}

		return array('documents' => $aDocuments, 'folders' => $aFolders);
	}

	// '_mimeHelper' just calls the KTMime tool, and gets the
	// appropriate name for the mime type id passed. The mime type id
	// is retrieved in the template.
	function _mimeHelper($iMimeTypeId) {
		return KTMime::getIconPath($iMimeTypeId);
	}
}

/**
 * This plugin provides a tree view of the document repository,
 * and allows quick and easy browsing.
 *
 */
class WemagTreeBrowsePlugin extends KTPlugin {
	var $sNamespace = "demo.WemagTreeBrowse.plugin";

	 
	function WemagTreeBrowsePlugin($sFilename = null) {
		$res = parent::KTPlugin($sFilename);
		$this->sFriendlyName = _kt('Wemag Tree Browse Plugin - AJAX folder tree view plugin');
		return $res;
	}

	function setup() {
		$oTemplating =& KTTemplating::getSingleton();
		$oTemplating->addLocation('WemagTreeBrowsePlugin', '/plugins/WemagTreeBrowsePlugin/templates');


		$this->registerAction('folderaction', 'WemagTreeBrowsePluginFolderAction', 'demo.WemagTreeBrowsePlugin.actions.folder.tree');
		$this->registerAction('folderaction', 'WemagTreeBrowsePluginDisableEnableAction', 'demo.WemagTreeBrowsePlugin.actions.folder.disableenable');
		 
	}
}

$oRegistry =& KTPluginRegistry::getSingleton();
$oRegistry->registerPlugin('WemagTreeBrowsePlugin', 'demo.WemagTreeBrowse.plugin', __FILE__);

?>