Source for file Tree.php

<?
/**
 * @package tree-node
 * @filesource
 * @see HTML_TREE_NODE_PAGE_PATH.'/Tree.php'
 * @copyright (c) http://Finn-Rasmussen.com
 * @license http://Finn-Rasmussen.com/license/ myPHP License conditions
 * @author http://Finn-Rasmussen.com
 * @version 1.9
 * @since 21-oct-2005
 */
 
/**
 * The required files
 */
require_once(HTML_PATH.'/Html.php');
require_once(HTML_TREE_NODE_UTIL_PATH.'/Node.php');
require_once(HTML_TREE_NODE_VIEW_PATH.'/NodeView.php');
require_once(HTML_FILE_UTIL_PATH.'/Dir.php');
if (defined('HTML_TABLE_COMPONENT_PATH')) {
    require_once(HTML_TABLE_COMPONENT_PATH.'/TableHeader.php');
}
if (defined('HTML_UTIL_COMPONENT_PATH')) {
    require_once(HTML_UTIL_COMPONENT_PATH.'/Server.php');
}
 
/**
 * The Tree class builds a complete navigation tree
 * <code>
 * Usage:
 *   $tree = new Tree($path,$text,$width,$class);
 *   print $tree->getHtml();
 * Or
 *   Tree::display($path,$text,$width,$class);
 * </code>
 * @package tree-node
 */
 
class Tree extends Html {
    /**
     * @var String $text The text of the table header
     */
    var $text = '';
 
    /**
     * @var String $width The width of the table header
     */
    var $width = '';
 
    /**
     * @var String $class The CSS class name
     */
    var $class = '';
 
    /**
     * Constructor
     * @param String $path The path to use for the tree
     * @param String $text  The text of the table header
     * @param String $width The width of the table header
     * @param String $class The CSS class to use
     */
    function Tree($path='',$text='',$width='',$class='') {
        $this->Html();
        $this->text  = $text !=''?$text :TREE_NODE_TEXT;
        $this->width = $width!=''?$width:TREE_NODE_WIDTH;
        $this->class = $class!=''?$class:TREE_NODE_CSS;
        if ($path!='') {
            $this->add($this->buildNode($path));
        } else {
            $this->add($this->buildNode($_SERVER['DOCUMENT_ROOT']));
        }
    }
 
    /**
     * Build the tree
     * @param String $path  The path to build
     * @param int    $level The level of the node
     * @return Node The Node to be build
     */
    function buildNode($path,$level=0) {
        //print "$path,$level<br />";
        $node = new Node();
        $cwd = Dir::getCwd();
        $thedir = new Dir($path);
        $thedir->cd();  // YOU MUST CHANGE TO THE DIRECTORY, in order to get it up and running
        if ($thedir->open()) {
            $level++;
            while (false !== ($dirname = $thedir->read())) {
                if (is_dir($dirname)) {
                    $pathdirname = $path.'/'.$dirname;
                    if (@file_exists($pathdirname.'/'.CONTENT_FILE_NAME)) {
                        switch ($dirname) {
                            case '.' :
                                if ($level===1) {
                                    $node->add(new NodeView(basename(getcwd()),$thedir->getUrl($path),IMAGE_HOME,$level));
                                }
                                break;
                            case '..':
                                if ($level===1) {
                                    $node->add(new NodeView(LINK_TEXT_UP,$dirname,IMAGE_PLUS,$level));
                                }
                                break;
                            default:
                                $image = IMAGE_DOC;
                                $indexFileName = $_SERVER['SCRIPT_NAME'];
                                if (defined('HTML_UTIL_COMPONENT_PATH')) {
                                    $indexFileName = Server::getScriptName();
                                } 
                                if ($thedir->getUrl($pathdirname).INDEX_FILE_NAME==$indexFileName) {
                                    $image = IMAGE_MINUS;
                                }
                                $node->add(new NodeView($dirname,$thedir->getUrl($pathdirname),$image,$level));
                                $node->add($this->buildNode(Dir::getCwd().'/'.$dirname,$level));
                                break;
                        }
                    } else {
                        // Ignore directories without a CONTENT_FILE_NAME
                    }
                } else {
                    //print "ignore $dirname<br />";
                }
            }
            $thedir->close();
        } else {
            print "error open $path<br />";
        }
        $thedir->cd($cwd); // Restore
        return $node;
    }
 
    /**
     * Get the html for the whole tree and all its nodes
     * @return String The html
     */
    function getHtml() {
        $html = $this->html;
        if (TREE_NODE_SHOW & TREE_NODE_SHOW_LEFT || TREE_NODE_SHOW & TREE_NODE_SHOW_CENTER || TREE_NODE_SHOW & TREE_NODE_SHOW_RIGHT) {
            if (defined('CREATE_RUNTIME_KERNEL') && CREATE_RUNTIME_KERNEL) {
                $html .= '<?$tree = new Tree();print $tree->getHtml();?>';
            } else {
                if (defined('HTML_TABLE_COMPONENT_PATH')) {
                    $tableheader = new TableHeader($this->text,$this->width);
                    $html .= $tableheader->getHtml();
                }
                $blank = new Images(IMAGE_BLANK,$this->width,'1','',"$this->class");
                $html .= $this->getElements()."<br />\r\n"; // As html
            }
        } else {
            if (defined('LOG_LEVEL') && LOG_LEVEL & LOG_LEVEL_DEBUG) {
                print "<!-- ".$this->getClassName()." is disabled -->\r\n";
            }
        }
        return $html;
    }
 
    /**
     * Display html
     * <code>
     * Usage:
     *    Tree::display($path,$text,$width,$class);
     * </code>
     * @static
     * @param String $path The path to use for the tree
     * @param String $text  The text of the table header
     * @param String $width The width of the table header
     * @param String $class The CSS class to use
     */
    function display($path='',$text='',$width='',$class='') {
        $html = new Tree($path,$text,$width,$class);
        $html->addHtml();
    }
}
?>