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<?php
// PHP Layers Menu 3.2.0-rc (C) 2001-2004 Marco Pratesi - http://www.marcopratesi.it/
/**
* This file contains the code of the TreeMenu class.
* @package PHPLayersMenu
*/
/**
* This is the TreeMenu class of the PHP Layers Menu library.
*
* This class depends on the LayersMenuCommon class and on the PEAR conforming version of the PHPLib Template class, i.e. on HTML_Template_PHPLIB
*
* @version 3.2.0-rc
* @package PHPLayersMenu
*/
class TreeMenu extends LayersMenuCommon
{
/**
* Type of images used for the Tree Menu
* @access private
* @var string
*/
var $treeMenuImagesType;
/**
* Prefix for filenames of images of a theme
* @access private
* @var string
*/
var $treeMenuTheme;
/**
* An array where we store the Tree Menu code for each menu
* @access private
* @var array
*/
var $_treeMenu;
/**
* The constructor method; it initializates the menu system
* @return void
*/
function TreeMenu()
{
$this->LayersMenuCommon();
$this->treeMenuImagesType = 'png';
$this->treeMenuTheme = '';
$this->_treeMenu = array();
$this->_nodesCount = 0;
$this->tree = array();
$this->_maxLevel = array();
$this->_firstLevelCnt = array();
$this->_firstItem = array();
$this->_lastItem = array();
}
/**
* The method to set the dirroot directory
* @access public
* @return boolean
*/
function setDirroot($dirroot)
{
return $this->setDirrootCommon($dirroot);
}
/**
* The method to set the type of images used for the Tree Menu
* @access public
* @return void
*/
function setTreeMenuImagesType($treeMenuImagesType)
{
$this->treeMenuImagesType = $treeMenuImagesType;
}
/**
* The method to set the prefix for filenames of images of a theme
* @access public
* @return void
*/
function setTreeMenuTheme($treeMenuTheme)
{
$this->treeMenuTheme = $treeMenuTheme;
}
/**
* Method to prepare a new Tree Menu.
*
* This method processes items of a menu to prepare and return
* the corresponding Tree Menu code.
*
* @access public
* @param string $menu_name the name of the menu whose items have to be processed
* @return string
*/
function newTreeMenu(
$menu_name = '' // non consistent default...
)
{
if (!isset($this->_firstItem[$menu_name]) || !isset($this->_lastItem[$menu_name])) {
$this->error("newTreeMenu: the first/last item of the menu '$menu_name' is not defined; please check if you have parsed its menu data.");
return 0;
}
$this->_treeMenu[$menu_name] = '';
$img_collapse = $this->imgwww . $this->treeMenuTheme . 'tree_collapse.' . $this->treeMenuImagesType;
$alt_collapse = '--';
$img_collapse_corner = $this->imgwww . $this->treeMenuTheme . 'tree_collapse_corner.' . $this->treeMenuImagesType;
$alt_collapse_corner = '--';
$img_collapse_corner_first = $this->imgwww . $this->treeMenuTheme . 'tree_collapse_corner_first.' . $this->treeMenuImagesType;
$alt_collapse_corner_first = '--';
$img_collapse_first = $this->imgwww . $this->treeMenuTheme . 'tree_collapse_first.' . $this->treeMenuImagesType;
$alt_collapse_first = '--';
$img_corner = $this->imgwww . $this->treeMenuTheme . 'tree_corner.' . $this->treeMenuImagesType;
$alt_corner = '`-';
$img_expand = $this->imgwww . $this->treeMenuTheme . 'tree_expand.' . $this->treeMenuImagesType;
$alt_expand = '+-';
$img_expand_corner = $this->imgwww . $this->treeMenuTheme . 'tree_expand_corner.' . $this->treeMenuImagesType;
$alt_expand_corner = '+-';
$img_expand_corner_first = $this->imgwww . $this->treeMenuTheme . 'tree_expand_corner_first.' . $this->treeMenuImagesType;
$alt_expand_corner_first = '+-';
$img_expand_first = $this->imgwww . $this->treeMenuTheme . 'tree_expand_first.' . $this->treeMenuImagesType;
$alt_expand_first = '+-';
$img_folder_closed = $this->imgwww . $this->treeMenuTheme . 'tree_folder_closed.' . $this->treeMenuImagesType;
$alt_folder_closed = '->';
$img_folder_open = $this->imgwww . $this->treeMenuTheme . 'tree_folder_open.' . $this->treeMenuImagesType;
$alt_folder_open = '->';
$img_leaf = $this->imgwww . $this->treeMenuTheme . 'tree_leaf.' . $this->treeMenuImagesType;
$alt_leaf = '->';
$img_space = $this->imgwww . $this->treeMenuTheme . 'tree_space.' . $this->treeMenuImagesType;
$alt_space = ' ';
$img_split = $this->imgwww . $this->treeMenuTheme . 'tree_split.' . $this->treeMenuImagesType;
$alt_split = '|-';
$img_split_first = $this->imgwww . $this->treeMenuTheme . 'tree_split_first.' . $this->treeMenuImagesType;
$alt_split_first = '|-';
$img_vertline = $this->imgwww . $this->treeMenuTheme . 'tree_vertline.' . $this->treeMenuImagesType;
$alt_vertline = '| ';
for ($i=0; $i<=$this->_maxLevel[$menu_name]; $i++) {
$levels[$i] = 0;
}
// Find last nodes of subtrees
$last_level = $this->_maxLevel[$menu_name];
for ($i=$this->_lastItem[$menu_name]; $i>=$this->_firstItem[$menu_name]; $i--) {
if ($this->tree[$i]['level'] < $last_level) {
for ($j=$this->tree[$i]['level']+1; $j<=$this->_maxLevel[$menu_name]; $j++) {
$levels[$j] = 0;
}
}
if ($levels[$this->tree[$i]['level']] == 0) {
$levels[$this->tree[$i]['level']] = 1;
$this->tree[$i]['last_item'] = 1;
} else {
$this->tree[$i]['last_item'] = 0;
}
$last_level = $this->tree[$i]['level'];
}
$toggle = '';
$toggle_function_name = 'toggle' . $menu_name;
for ($cnt=$this->_firstItem[$menu_name]; $cnt<=$this->_lastItem[$menu_name]; $cnt++) {
if ($this->tree[$cnt]['text'] == '---') {
continue; // separators are significant only for layers-based menus
}
if (isset($this->tree[$cnt]['selected']) && $this->tree[$cnt]['selected']) {
$linkstyle = 'phplmselected';
} else {
$linkstyle = 'phplm';
}
$this->_treeMenu[$menu_name] .= '<div id="jt' . $cnt . '" class="treemenudiv">' . "\n";
// vertical lines from higher levels
for ($i=0; $i<$this->tree[$cnt]['level']-1; $i++) {
if ($levels[$i] == 1) {
$img = $img_vertline;
$alt = $alt_vertline;
} else {
$img = $img_space;
$alt = $alt_space;
}
$this->_treeMenu[$menu_name] .= '<img align="top" border="0" class="imgs" src="' . $img . '" alt="' . $alt . '" />';
}
$not_a_leaf = $cnt<$this->_lastItem[$menu_name] && $this->tree[$cnt+1]['level']>$this->tree[$cnt]['level'];
if ($this->tree[$cnt]['last_item'] == 1) {
// corner at end of subtree or t-split
if ($not_a_leaf) {
if ($cnt == $this->_firstItem[$menu_name]) {
$img = $img_collapse_corner_first;
$alt = $alt_collapse_corner_first;
} else {
$img = $img_collapse_corner;
$alt = $alt_collapse_corner;
}
$this->_treeMenu[$menu_name] .= '<a onmousedown="' . $toggle_function_name . "('" . $cnt . "')" . '"><img align="top" border="0" class="imgs" id="jt' . $cnt . 'node" src="' . $img . '" alt="' . $alt . '" /></a>';
} else {
$this->_treeMenu[$menu_name] .= '<img align="top" border="0" class="imgs" src="' . $img_corner . '" alt="' . $alt_corner . '" />';
}
$levels[$this->tree[$cnt]['level']-1] = 0;
} else {
if ($not_a_leaf) {
if ($cnt == $this->_firstItem[$menu_name]) {
$img = $img_collapse_first;
$alt = $alt_collapse_first;
} else {
$img = $img_collapse;
$alt = $alt_collapse;
}
$this->_treeMenu[$menu_name] .= '<a onmousedown="' . $toggle_function_name . "('" . $cnt . "');" . '"><img align="top" border="0" class="imgs" id="jt' . $cnt . 'node" src="' . $img . '" alt="' . $alt . '" /></a>';
} else {
if ($cnt == $this->_firstItem[$menu_name]) {
$img = $img_split_first;
$alt = $alt_split_first;
} else {
$img = $img_split;
$alt = $alt_split;
}
$this->_treeMenu[$menu_name] .= '<img align="top" border="0" class="imgs" id="jt' . $cnt . 'node" src="' . $img . '" alt="' . $alt . '" />';
}
$levels[$this->tree[$cnt]['level']-1] = 1;
}
if ($this->tree[$cnt]['parsed_href'] == '' || $this->tree[$cnt]['parsed_href'] == '#') {
$a_href_open_img = '';
$a_href_close_img = '';
$a_href_open = '<a class="phplmnormal">';
$a_href_close = '</a>';
} else {
$a_href_open_img = '<a href="' . $this->tree[$cnt]['parsed_href'] . '"' . $this->tree[$cnt]['parsed_title'] . $this->tree[$cnt]['parsed_target'] . '>';
$a_href_close_img = '</a>';
$a_href_open = '<a href="' . $this->tree[$cnt]['parsed_href'] . '"' . $this->tree[$cnt]['parsed_title'] . $this->tree[$cnt]['parsed_target'] . ' class="' . $linkstyle . '">';
$a_href_close = '</a>';
}
if ($not_a_leaf) {
$this->_treeMenu[$menu_name] .= $a_href_open_img . '<img align="top" border="0" class="imgs" id="jt' . $cnt . 'folder" src="' . $img_folder_open . '" alt="' . $alt_folder_open . '" />' . $a_href_close_img;
} else {
if ($this->tree[$cnt]['parsed_icon'] != '') {
$this->_treeMenu[$menu_name] .= $a_href_open_img . '<img align="top" border="0" src="' . $this->tree[$cnt]['parsed_icon'] . '" width="' . $this->tree[$cnt]['iconwidth'] . '" height="' . $this->tree[$cnt]['iconheight'] . '" alt="' . $alt_leaf . '" />' . $a_href_close_img;
} else {
$this->_treeMenu[$menu_name] .= $a_href_open_img . '<img align="top" border="0" class="imgs" src="' . $img_leaf . '" alt="' . $alt_leaf . '" />' . $a_href_close_img;
}
}
$this->_treeMenu[$menu_name] .= ' ' . $a_href_open . $this->tree[$cnt]['text'] . $a_href_close . "\n";
$this->_treeMenu[$menu_name] .= '</div>' . "\n";
if ($cnt<$this->_lastItem[$menu_name] && $this->tree[$cnt]['level']<$this->tree[$cnt+1]['level']) {
$this->_treeMenu[$menu_name] .= '<div id="jt' . $cnt . 'son" class="treemenudiv">' . "\n";
if ($this->tree[$cnt]['expanded'] != 1) {
$toggle .= 'if (phplm_expand[' . $cnt . '] != 1) ' . $toggle_function_name . "('" . $cnt . "');\n";
} else {
$toggle .= 'if (phplm_collapse[' . $cnt . '] == 1) ' . $toggle_function_name . "('" . $cnt . "');\n";
}
}
if ($cnt>$this->_firstItem[$menu_name] && $this->tree[$cnt]['level']>$this->tree[$cnt+1]['level']) {
for ($i=max(1, $this->tree[$cnt+1]['level']); $i<$this->tree[$cnt]['level']; $i++) {
$this->_treeMenu[$menu_name] .= '</div>' . "\n";
}
}
}
/*
$this->_treeMenu[$menu_name] =
'<div class="phplmnormal">' . "\n" .
$this->_treeMenu[$menu_name] .
'</div>' . "\n";
*/
// Some (old) browsers do not support the "white-space: nowrap;" CSS property...
$this->_treeMenu[$menu_name] =
'<table cellspacing="0" cellpadding="0" border="0">' . "\n" .
'<tr>' . "\n" .
'<td class="phplmnormal" nowrap="nowrap">' . "\n" .
$this->_treeMenu[$menu_name] .
'</td>' . "\n" .
'</tr>' . "\n" .
'</table>' . "\n";
$t = new Template_PHPLIB();
$t->setFile('tplfile', $this->libjsdir . 'layerstreemenu.ijs');
$t->setVar(array(
'toggle_function_name' => $toggle_function_name,
'img_collapse' => $img_collapse,
'img_collapse_corner' => $img_collapse_corner,
'img_collapse_corner_first' => $img_collapse_corner_first,
'img_collapse_first' => $img_collapse_first,
'img_expand' => $img_expand,
'img_expand_corner' => $img_expand_corner,
'img_expand_corner_first' => $img_expand_corner_first,
'img_expand_first' => $img_expand_first,
'img_folder_closed' => $img_folder_closed,
'img_folder_open' => $img_folder_open
));
$toggle_function = $t->parse('out', 'tplfile');
$toggle_function =
'<script language="JavaScript" type="text/javascript">' . "\n" .
'<!--' . "\n" .
$toggle_function .
'// -->' . "\n" .
'</script>' . "\n";
$toggle =
'<script language="JavaScript" type="text/javascript">' . "\n" .
'<!--' . "\n" .
'if ((DOM && !Opera56 && !Konqueror22) || IE4) {' . "\n" .
$toggle .
'}' . "\n" .
'if (NS4) alert("Only the accessibility is provided to Netscape 4 on the JavaScript Tree Menu.\nWe *strongly* suggest you to upgrade your browser.");' . "\n" .
'// -->' . "\n" .
'</script>' . "\n";
$this->_treeMenu[$menu_name] = $toggle_function . "\n" . $this->_treeMenu[$menu_name] . "\n" . $toggle;
return $this->_treeMenu[$menu_name];
}
/**
* Method that returns the code of the requested Tree Menu
* @access public
* @param string $menu_name the name of the menu whose Tree Menu code
* has to be returned
* @return string
*/
function getTreeMenu($menu_name)
{
return $this->_treeMenu[$menu_name];
}
/**
* Method that prints the code of the requested Tree Menu
* @access public
* @param string $menu_name the name of the menu whose Tree Menu code
* has to be printed
* @return void
*/
function printTreeMenu($menu_name)
{
print $this->_treeMenu[$menu_name];
}
} /* END OF CLASS */
?>
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