include/phplayersmenu/treemenu.inc.php

   1 <?php
   2 // PHP Layers Menu 3.1.1 (C) 2001-2003 Marco Pratesi (marco at telug dot it)
   3
   4 /**
   5 * This file contains the code of the TreeMenu class.
   6 * @package PHPLayersMenu
   7 */
   8
   9 /**
  10 * This is the TreeMenu class of the PHP Layers Menu library.
  11 *
  12 * This class depends on the LayersMenuCommon class and on the PEAR conforming version of the PHPLib Template class, i.e. on HTML_Template_PHPLIB
  13 *
  14 * @version 3.1.1
  15 * @package PHPLayersMenu
  16 */
  17 class TreeMenu extends LayersMenuCommon {
  18
  19 /**
  20 * Type of images used for the Tree Menu
  21 * @access private
  22 * @var string
  23 */
  24 var $treeMenuImagesType;
  25 /**
  26 * An array where we store the Tree Menu code for each menu
  27 * @access private
  28 * @var array
  29 */
  30 var $_treeMenu;
  31
  32 /**
  33 * The constructor method; it initializates the menu system
  34 * @return void
  35 */
  36 function TreeMenu() {
  37         $this->LayersMenuCommon();
  38
  39         $this->treeMenuImagesType = "png";
  40         $this->_treeMenu = array();
  41
  42         $this->_nodesCount = 0;
  43         $this->tree = array();
  44         $this->_maxLevel = array();
  45         $this->_firstLevelCnt = array();
  46         $this->_firstItem = array();
  47         $this->_lastItem = array();
  48 }
  49
  50 /**
  51 * The method to set the dirroot directory
  52 * @access public
  53 * @return boolean
  54 */
  55 function setDirroot($dirroot) {
  56         return $this->setDirrootCommon($dirroot);
  57 }
  58
  59 /**
  60 * The method to set the type of images used for the Tree Menu
  61 * @access public
  62 * @return void
  63 */
  64 function setTreeMenuImagesType($treeMenuImagesType) {
  65         $this->treeMenuImagesType = $treeMenuImagesType;
  66 }
  67
  68 /**
  69 * Method to prepare a new Tree Menu.
  70 *
  71 * This method processes items of a menu to prepare and return
  72 * the corresponding Tree Menu code.
  73 *
  74 * @access public
  75 * @param string $menu_name the name of the menu whose items have to be processed
  76 * @return string
  77 */
  78 function newTreeMenu(
  79         $menu_name = "" // non consistent default...
  80         ) {
  81         if (!isset($this->_firstItem[$menu_name]) || !isset($this->_lastItem[$menu_name])) {
  82                 $this->error("newTreeMenu: the first/last item of the menu '$menu_name' is not defined; please check if you have parsed its menu data.");
  83                 return 0;
  84         }
  85
  86         $this->_treeMenu[$menu_name] = "";
  87
  88         $img_space              = $this->imgwww . "tree_space." . $this->treeMenuImagesType;
  89         $alt_space              = "  ";
  90         $img_vertline           = $this->imgwww . "tree_vertline." . $this->treeMenuImagesType;
  91         $alt_vertline           = "| ";
  92         $img_expand             = $this->imgwww . "tree_expand." . $this->treeMenuImagesType;
  93         $alt_expand             = "+-";
  94         $img_expand_first       = $this->imgwww . "tree_expand_first." . $this->treeMenuImagesType;
  95         $alt_expand_first       = "+-";
  96         $img_expand_corner      = $this->imgwww . "tree_expand_corner." . $this->treeMenuImagesType;
  97         $alt_expand_corner      = "+-";
  98         $img_collapse           = $this->imgwww . "tree_collapse." . $this->treeMenuImagesType;
  99         $alt_collapse           = "--";
 100         $img_collapse_first     = $this->imgwww . "tree_collapse_first." . $this->treeMenuImagesType;
 101         $alt_collapse_first     = "--";
 102         $img_collapse_corner    = $this->imgwww . "tree_collapse_corner." . $this->treeMenuImagesType;
 103         $alt_collapse_corner    = "--";
 104         $img_split              = $this->imgwww . "tree_split." . $this->treeMenuImagesType;
 105         $alt_split              = "|-";
 106         $img_split_first        = $this->imgwww . "tree_split_first." . $this->treeMenuImagesType;
 107         $alt_split_first        = "|-";
 108         $img_corner             = $this->imgwww . "tree_corner." . $this->treeMenuImagesType;
 109         $alt_corner             = "`-";
 110         $img_folder_closed      = $this->imgwww . "tree_folder_closed." . $this->treeMenuImagesType;
 111         $alt_folder_closed      = "->";
 112         $img_folder_open        = $this->imgwww . "tree_folder_open." . $this->treeMenuImagesType;
 113         $alt_folder_open        = "->";
 114         $img_leaf               = $this->imgwww . "tree_leaf." . $this->treeMenuImagesType;
 115         $alt_leaf               = "->";
 116
 117         for ($i=0; $i<=$this->_maxLevel[$menu_name]; $i++) {
 118                 $levels[$i] = 0;
 119         }
 120
 121         // Find last nodes of subtrees
 122         $last_level = $this->_maxLevel[$menu_name];
 123         for ($i=$this->_lastItem[$menu_name]; $i>=$this->_firstItem[$menu_name]; $i--) {
 124                 if ($this->tree[$i]["level"] < $last_level) {
 125                         for ($j=$this->tree[$i]["level"]+1; $j<=$this->_maxLevel[$menu_name]; $j++) {
 126                                 $levels[$j] = 0;
 127                         }
 128                 }
 129                 if ($levels[$this->tree[$i]["level"]] == 0) {
 130                         $levels[$this->tree[$i]["level"]] = 1;
 131                         $this->tree[$i]["last_item"] = 1;
 132                 } else {
 133                         $this->tree[$i]["last_item"] = 0;
 134                 }
 135                 $last_level = $this->tree[$i]["level"];
 136         }
 137
 138         $toggle = "";
 139         $toggle_function_name = "toggle" . $menu_name;
 140
 141         for ($cnt=$this->_firstItem[$menu_name]; $cnt<=$this->_lastItem[$menu_name]; $cnt++) {
 142                 $this->_treeMenu[$menu_name] .= "<div id=\"jt" . $cnt . "\" class=\"treemenudiv\">\n";
 143
 144                 // vertical lines from higher levels
 145                 for ($i=0; $i<$this->tree[$cnt]["level"]-1; $i++) {
 146                         if ($levels[$i] == 1) {
 147                                 $img = $img_vertline;
 148                                 $alt = $alt_vertline;
 149                         } else {
 150                                 $img = $img_space;
 151                                 $alt = $alt_space;
 152                         }
 153                         $this->_treeMenu[$menu_name] .= "<img class=\"imgs\" src=\"" . $img . "\" alt=\"" . $alt . "\" />";
 154                 }
 155
 156                 $not_a_leaf = $cnt<$this->_lastItem[$menu_name] && $this->tree[$cnt+1]["level"]>$this->tree[$cnt]["level"];
 157
 158                 if ($this->tree[$cnt]["last_item"] == 1) {
 159                 // corner at end of subtree or t-split
 160                         if ($not_a_leaf) {
 161                                 $this->_treeMenu[$menu_name] .= "<a onmousedown=\"". $toggle_function_name . "('" . $cnt . "')\"><img class=\"imgs\" id=\"jt" . $cnt . "node\" src=\"" . $img_collapse_corner . "\" alt=\"" . $alt_collapse_corner . "\" /></a>";
 162                         } else {
 163                                 $this->_treeMenu[$menu_name] .= "<img class=\"imgs\" src=\"" . $img_corner . "\" alt=\"" . $alt_corner . "\" />";
 164                         }
 165                         $levels[$this->tree[$cnt]["level"]-1] = 0;
 166                 } else {
 167                         if ($not_a_leaf) {
 168                                 if ($cnt == $this->_firstItem[$menu_name]) {
 169                                         $img = $img_collapse_first;
 170                                         $alt = $alt_collapse_first;
 171                                 } else {
 172                                         $img = $img_collapse;
 173                                         $alt = $alt_collapse;
 174                                 }
 175                                 $this->_treeMenu[$menu_name] .= "<a onmousedown=\"". $toggle_function_name . "('" . $cnt . "');\"><img class=\"imgs\" id=\"jt" . $cnt . "node\" src=\"" . $img . "\" alt=\"" . $alt . "\" /></a>";
 176                         } else {
 177                                 if ($cnt == $this->_firstItem[$menu_name]) {
 178                                         $img = $img_split_first;
 179                                         $alt = $alt_split_first;
 180                                 } else {
 181                                         $img = $img_split;
 182                                         $alt = $alt_split;
 183                                 }
 184                                 $this->_treeMenu[$menu_name] .= "<a onmousedown=\"". $toggle_function_name . "('" . $cnt . "');\"><img class=\"imgs\" id=\"jt" . $cnt . "node\" src=\"" . $img . "\" alt=\"" . $alt . "\" /></a>";
 185                         }
 186                         $levels[$this->tree[$cnt]["level"]-1] = 1;
 187                 }
 188
 189                 if ($this->tree[$cnt]["parsed_href"] == "" || $this->tree[$cnt]["parsed_href"] == "#") {
 190                         $a_href_open_img = "";
 191                         $a_href_close_img = "";
 192                         $a_href_open = "<a class=\"phplmnormal\">";
 193                         $a_href_close = "</a>";
 194                 } else {
 195                         $a_href_open_img = "<a href=\"" . $this->tree[$cnt]["parsed_href"] . "\"" . $this->tree[$cnt]["parsed_title"] . $this->tree[$cnt]["parsed_target"] . ">";
 196                         $a_href_close_img = "</a>";
 197                         $a_href_open = "<a href=\"" . $this->tree[$cnt]["parsed_href"] . "\"" . $this->tree[$cnt]["parsed_title"] . $this->tree[$cnt]["parsed_target"] . " class=\"phplm\">";
 198                         $a_href_close = "</a>";
 199                 }
 200
 201                 if ($not_a_leaf) {
 202                         $this->_treeMenu[$menu_name] .= $a_href_open_img . "<img class=\"imgs\" id=\"jt" . $cnt . "folder\" src=\"" . $img_folder_open . "\" alt=\"" . $alt_folder_open . "\" />" . $a_href_close_img;
 203                 } else {
 204                         if ($this->tree[$cnt]["parsed_icon"] != "") {
 205                                 $this->_treeMenu[$menu_name] .= $a_href_open_img . "<img class=\"imgs\" src=\"" . $this->imgwww . $this->tree[$cnt]["parsed_icon"] . "\" width=\"" . $this->tree[$cnt]["iconwidth"] . "\" height=\"" . $this->tree[$cnt]["iconheight"] . "\" alt=\"" . $alt_leaf . "\" />" . $a_href_close_img;
 206                         } else {
 207                                 $this->_treeMenu[$menu_name] .= $a_href_open_img . "<img class=\"imgs\" src=\"" . $img_leaf . "\" alt=\"" . $alt_leaf . "\" />" . $a_href_close_img;
 208                         }
 209                 }
 210                 $this->_treeMenu[$menu_name] .= "&nbsp;" . $a_href_open . $this->tree[$cnt]["text"] . $a_href_close . "\n";
 211                 $this->_treeMenu[$menu_name] .= "</div>\n";
 212
 213                 if ($cnt<$this->_lastItem[$menu_name] && $this->tree[$cnt]["level"]<$this->tree[$cnt+1]["level"]) {
 214                         $this->_treeMenu[$menu_name] .= "<div id=\"jt" . $cnt . "son\" class=\"treemenudiv\">\n";
 215                         if ($this->tree[$cnt]["expanded"] != 1) {
 216                                 $toggle .= "if (expand[" . $cnt . "] != 1) " . $toggle_function_name . "('" . $cnt . "');\n";
 217                         } else {
 218                                 $toggle .= "if (collapse[" . $cnt . "] == 1) " . $toggle_function_name . "('" . $cnt . "');\n";
 219                         }
 220                 }
 221
 222                 if ($cnt>$this->_firstItem[$menu_name] && $this->tree[$cnt]["level"]>$this->tree[$cnt+1]["level"]) {
 223                         for ($i=max(1, $this->tree[$cnt+1]["level"]); $i<$this->tree[$cnt]["level"]; $i++) {
 224                                 $this->_treeMenu[$menu_name] .= "</div>\n";
 225                         }
 226                 }
 227         }
 228
 229 /*
 230         $this->_treeMenu[$menu_name] =
 231         "<div class=\"phplmnormal\">\n" .
 232         $this->_treeMenu[$menu_name] .
 233         "</div>\n";
 234 */
 235         // Some (old) browsers do not support the "white-space: nowrap;" CSS property...
 236         $this->_treeMenu[$menu_name] =
 237         "<table cellspacing=\"0\" cellpadding=\"0\" style=\"border: 0;\">\n" .
 238         "<tr>\n" .
 239         "<td class=\"phplmnormal\" style=\"white-space: nowrap;\">\n" .
 240         $this->_treeMenu[$menu_name] .
 241         "</td>\n" .
 242         "</tr>\n" .
 243         "</table>\n";
 244
 245         $t = new Template_PHPLIB();
 246         $t->setFile("tplfile", $this->libjsdir . "layerstreemenu.ijs");
 247         $t->setVar(array(
 248                 "toggle_function_name"  => $toggle_function_name,
 249                 "img_expand"            => $img_expand,
 250                 "img_expand_first"      => $img_expand_first,
 251                 "img_collapse"          => $img_collapse,
 252                 "img_collapse_first"    => $img_collapse_first,
 253                 "img_collapse_corner"   => $img_collapse_corner,
 254                 "img_folder_open"       => $img_folder_open,
 255                 "img_expand_corner"     => $img_expand_corner,
 256                 "img_folder_closed"     => $img_folder_closed
 257         ));
 258         $toggle_function = $t->parse("out", "tplfile");
 259         $toggle_function =
 260         "<script type=\"text/javascript\">\n" .
 261         "<!--\n" .
 262         $toggle_function .
 263         "// -->\n" .
 264         "</script>\n";
 265
 266         $toggle =
 267         "<script type=\"text/javascript\">\n" .
 268         "<!--\n" .
 269         "if ((DOM && !Opera56 && !Konqueror22) || IE4) {\n" .
 270         $toggle .
 271         "}\n" .
 272         "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" .
 273         "// -->\n" .
 274         "</script>\n";
 275
 276         $this->_treeMenu[$menu_name] = $toggle_function . "\n" . $this->_treeMenu[$menu_name] . "\n" . $toggle;
 277
 278         return $this->_treeMenu[$menu_name];
 279 }
 280
 281 /**
 282 * Method that returns the code of the requested Tree Menu
 283 * @access public
 284 * @param string $menu_name the name of the menu whose Tree Menu code
 285 *   has to be returned
 286 * @return string
 287 */
 288 function getTreeMenu($menu_name) {
 289         return $this->_treeMenu[$menu_name];
 290 }
 291
 292 /**
 293 * Method that prints the code of the requested Tree Menu
 294 * @access public
 295 * @param string $menu_name the name of the menu whose Tree Menu code
 296 *   has to be printed
 297 * @return void
 298 */
 299 function printTreeMenu($menu_name) {
 300         print $this->_treeMenu[$menu_name];
 301 }
 302
 303 } /* END OF CLASS */
 304
 305 ?>