1 <?php
2 // PHP Layers Menu 3.2.0-rc (C) 2001-2004 Marco Pratesi - http://www.marcopratesi.it/
4 /**
5 * This file contains the code of the TreeMenu class.
6 * @package PHPLayersMenu
7 */
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 3.2.0-rc
15 * @package PHPLayersMenu
16 */
17 class TreeMenu extends LayersMenuCommon
18 {
20 /**
21 * Type of images used for the Tree Menu
22 * @access private
23 * @var string
24 */
25 var $treeMenuImagesType;
26 /**
27 * Prefix for filenames of images of a theme
28 * @access private
29 * @var string
30 */
31 var $treeMenuTheme;
32 /**
33 * An array where we store the Tree Menu code for each menu
34 * @access private
35 * @var array
36 */
37 var $_treeMenu;
39 /**
40 * The constructor method; it initializates the menu system
41 * @return void
42 */
43 function TreeMenu()
44 {
45 $this->LayersMenuCommon();
47 $this->treeMenuImagesType = 'png';
48 $this->treeMenuTheme = '';
49 $this->_treeMenu = array();
51 $this->_nodesCount = 0;
52 $this->tree = array();
53 $this->_maxLevel = array();
54 $this->_firstLevelCnt = array();
55 $this->_firstItem = array();
56 $this->_lastItem = array();
57 }
59 /**
60 * The method to set the dirroot directory
61 * @access public
62 * @return boolean
63 */
64 function setDirroot($dirroot)
65 {
66 return $this->setDirrootCommon($dirroot);
67 }
69 /**
70 * The method to set the type of images used for the Tree Menu
71 * @access public
72 * @return void
73 */
74 function setTreeMenuImagesType($treeMenuImagesType)
75 {
76 $this->treeMenuImagesType = $treeMenuImagesType;
77 }
79 /**
80 * The method to set the prefix for filenames of images of a theme
81 * @access public
82 * @return void
83 */
84 function setTreeMenuTheme($treeMenuTheme)
85 {
86 $this->treeMenuTheme = $treeMenuTheme;
87 }
89 /**
90 * Method to prepare a new Tree Menu.
91 *
92 * This method processes items of a menu to prepare and return
93 * the corresponding Tree Menu code.
94 *
95 * @access public
96 * @param string $menu_name the name of the menu whose items have to be processed
97 * @return string
98 */
99 function newTreeMenu(
100 $menu_name = '' // non consistent default...
101 )
102 {
103 if (!isset($this->_firstItem[$menu_name]) || !isset($this->_lastItem[$menu_name])) {
104 $this->error("newTreeMenu: the first/last item of the menu '$menu_name' is not defined; please check if you have parsed its menu data.");
105 return 0;
106 }
108 $this->_treeMenu[$menu_name] = '';
110 $img_collapse = $this->imgwww . $this->treeMenuTheme . 'tree_collapse.' . $this->treeMenuImagesType;
111 $alt_collapse = '--';
112 $img_collapse_corner = $this->imgwww . $this->treeMenuTheme . 'tree_collapse_corner.' . $this->treeMenuImagesType;
113 $alt_collapse_corner = '--';
114 $img_collapse_corner_first = $this->imgwww . $this->treeMenuTheme . 'tree_collapse_corner_first.' . $this->treeMenuImagesType;
115 $alt_collapse_corner_first = '--';
116 $img_collapse_first = $this->imgwww . $this->treeMenuTheme . 'tree_collapse_first.' . $this->treeMenuImagesType;
117 $alt_collapse_first = '--';
118 $img_corner = $this->imgwww . $this->treeMenuTheme . 'tree_corner.' . $this->treeMenuImagesType;
119 $alt_corner = '`-';
120 $img_expand = $this->imgwww . $this->treeMenuTheme . 'tree_expand.' . $this->treeMenuImagesType;
121 $alt_expand = '+-';
122 $img_expand_corner = $this->imgwww . $this->treeMenuTheme . 'tree_expand_corner.' . $this->treeMenuImagesType;
123 $alt_expand_corner = '+-';
124 $img_expand_corner_first = $this->imgwww . $this->treeMenuTheme . 'tree_expand_corner_first.' . $this->treeMenuImagesType;
125 $alt_expand_corner_first = '+-';
126 $img_expand_first = $this->imgwww . $this->treeMenuTheme . 'tree_expand_first.' . $this->treeMenuImagesType;
127 $alt_expand_first = '+-';
128 $img_folder_closed = $this->imgwww . $this->treeMenuTheme . 'tree_folder_closed.' . $this->treeMenuImagesType;
129 $alt_folder_closed = '->';
130 $img_folder_open = $this->imgwww . $this->treeMenuTheme . 'tree_folder_open.' . $this->treeMenuImagesType;
131 $alt_folder_open = '->';
132 $img_leaf = $this->imgwww . $this->treeMenuTheme . 'tree_leaf.' . $this->treeMenuImagesType;
133 $alt_leaf = '->';
134 $img_space = $this->imgwww . $this->treeMenuTheme . 'tree_space.' . $this->treeMenuImagesType;
135 $alt_space = ' ';
136 $img_split = $this->imgwww . $this->treeMenuTheme . 'tree_split.' . $this->treeMenuImagesType;
137 $alt_split = '|-';
138 $img_split_first = $this->imgwww . $this->treeMenuTheme . 'tree_split_first.' . $this->treeMenuImagesType;
139 $alt_split_first = '|-';
140 $img_vertline = $this->imgwww . $this->treeMenuTheme . 'tree_vertline.' . $this->treeMenuImagesType;
141 $alt_vertline = '| ';
143 for ($i=0; $i<=$this->_maxLevel[$menu_name]; $i++) {
144 $levels[$i] = 0;
145 }
147 // Find last nodes of subtrees
148 $last_level = $this->_maxLevel[$menu_name];
149 for ($i=$this->_lastItem[$menu_name]; $i>=$this->_firstItem[$menu_name]; $i--) {
150 if ($this->tree[$i]['level'] < $last_level) {
151 for ($j=$this->tree[$i]['level']+1; $j<=$this->_maxLevel[$menu_name]; $j++) {
152 $levels[$j] = 0;
153 }
154 }
155 if ($levels[$this->tree[$i]['level']] == 0) {
156 $levels[$this->tree[$i]['level']] = 1;
157 $this->tree[$i]['last_item'] = 1;
158 } else {
159 $this->tree[$i]['last_item'] = 0;
160 }
161 $last_level = $this->tree[$i]['level'];
162 }
164 $toggle = '';
165 $toggle_function_name = 'toggle' . $menu_name;
167 for ($cnt=$this->_firstItem[$menu_name]; $cnt<=$this->_lastItem[$menu_name]; $cnt++) {
168 if ($this->tree[$cnt]['text'] == '---') {
169 continue; // separators are significant only for layers-based menus
170 }
172 if (isset($this->tree[$cnt]['selected']) && $this->tree[$cnt]['selected']) {
173 $linkstyle = 'phplmselected';
174 } else {
175 $linkstyle = 'phplm';
176 }
178 $this->_treeMenu[$menu_name] .= '<div id="jt' . $cnt . '" class="treemenudiv">' . "\n";
180 // vertical lines from higher levels
181 for ($i=0; $i<$this->tree[$cnt]['level']-1; $i++) {
182 if ($levels[$i] == 1) {
183 $img = $img_vertline;
184 $alt = $alt_vertline;
185 } else {
186 $img = $img_space;
187 $alt = $alt_space;
188 }
189 $this->_treeMenu[$menu_name] .= '<img align="top" border="0" class="imgs" src="' . $img . '" alt="' . $alt . '" />';
190 }
192 $not_a_leaf = $cnt<$this->_lastItem[$menu_name] && $this->tree[$cnt+1]['level']>$this->tree[$cnt]['level'];
194 if ($this->tree[$cnt]['last_item'] == 1) {
195 // corner at end of subtree or t-split
196 if ($not_a_leaf) {
197 if ($cnt == $this->_firstItem[$menu_name]) {
198 $img = $img_collapse_corner_first;
199 $alt = $alt_collapse_corner_first;
200 } else {
201 $img = $img_collapse_corner;
202 $alt = $alt_collapse_corner;
203 }
204 $this->_treeMenu[$menu_name] .= '<a onmousedown="' . $toggle_function_name . "('" . $cnt . "')" . '"><img align="top" border="0" class="imgs" id="jt' . $cnt . 'node" src="' . $img . '" alt="' . $alt . '" /></a>';
205 } else {
206 $this->_treeMenu[$menu_name] .= '<img align="top" border="0" class="imgs" src="' . $img_corner . '" alt="' . $alt_corner . '" />';
207 }
208 $levels[$this->tree[$cnt]['level']-1] = 0;
209 } else {
210 if ($not_a_leaf) {
211 if ($cnt == $this->_firstItem[$menu_name]) {
212 $img = $img_collapse_first;
213 $alt = $alt_collapse_first;
214 } else {
215 $img = $img_collapse;
216 $alt = $alt_collapse;
217 }
218 $this->_treeMenu[$menu_name] .= '<a onmousedown="' . $toggle_function_name . "('" . $cnt . "');" . '"><img align="top" border="0" class="imgs" id="jt' . $cnt . 'node" src="' . $img . '" alt="' . $alt . '" /></a>';
219 } else {
220 if ($cnt == $this->_firstItem[$menu_name]) {
221 $img = $img_split_first;
222 $alt = $alt_split_first;
223 } else {
224 $img = $img_split;
225 $alt = $alt_split;
226 }
227 $this->_treeMenu[$menu_name] .= '<img align="top" border="0" class="imgs" id="jt' . $cnt . 'node" src="' . $img . '" alt="' . $alt . '" />';
228 }
229 $levels[$this->tree[$cnt]['level']-1] = 1;
230 }
232 if ($this->tree[$cnt]['parsed_href'] == '' || $this->tree[$cnt]['parsed_href'] == '#') {
233 $a_href_open_img = '';
234 $a_href_close_img = '';
235 $a_href_open = '<a class="phplmnormal">';
236 $a_href_close = '</a>';
237 } else {
238 $a_href_open_img = '<a href="' . $this->tree[$cnt]['parsed_href'] . '"' . $this->tree[$cnt]['parsed_title'] . $this->tree[$cnt]['parsed_target'] . '>';
239 $a_href_close_img = '</a>';
240 $a_href_open = '<a href="' . $this->tree[$cnt]['parsed_href'] . '"' . $this->tree[$cnt]['parsed_title'] . $this->tree[$cnt]['parsed_target'] . ' class="' . $linkstyle . '">';
241 $a_href_close = '</a>';
242 }
244 if ($not_a_leaf) {
245 $this->_treeMenu[$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 . '" />' . $a_href_close_img;
246 } else {
247 if ($this->tree[$cnt]['parsed_icon'] != '') {
248 $this->_treeMenu[$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;
249 } else {
250 $this->_treeMenu[$menu_name] .= $a_href_open_img . '<img align="top" border="0" class="imgs" src="' . $img_leaf . '" alt="' . $alt_leaf . '" />' . $a_href_close_img;
251 }
252 }
253 $this->_treeMenu[$menu_name] .= ' ' . $a_href_open . $this->tree[$cnt]['text'] . $a_href_close . "\n";
254 $this->_treeMenu[$menu_name] .= '</div>' . "\n";
256 if ($cnt<$this->_lastItem[$menu_name] && $this->tree[$cnt]['level']<$this->tree[$cnt+1]['level']) {
257 $this->_treeMenu[$menu_name] .= '<div id="jt' . $cnt . 'son" class="treemenudiv">' . "\n";
258 if ($this->tree[$cnt]['expanded'] != 1) {
259 $toggle .= 'if (phplm_expand[' . $cnt . '] != 1) ' . $toggle_function_name . "('" . $cnt . "');\n";
260 } else {
261 $toggle .= 'if (phplm_collapse[' . $cnt . '] == 1) ' . $toggle_function_name . "('" . $cnt . "');\n";
262 }
263 }
265 if ($cnt>$this->_firstItem[$menu_name] && $this->tree[$cnt]['level']>$this->tree[$cnt+1]['level']) {
266 for ($i=max(1, $this->tree[$cnt+1]['level']); $i<$this->tree[$cnt]['level']; $i++) {
267 $this->_treeMenu[$menu_name] .= '</div>' . "\n";
268 }
269 }
270 }
272 /*
273 $this->_treeMenu[$menu_name] =
274 '<div class="phplmnormal">' . "\n" .
275 $this->_treeMenu[$menu_name] .
276 '</div>' . "\n";
277 */
278 // Some (old) browsers do not support the "white-space: nowrap;" CSS property...
279 $this->_treeMenu[$menu_name] =
280 '<table cellspacing="0" cellpadding="0" border="0">' . "\n" .
281 '<tr>' . "\n" .
282 '<td class="phplmnormal" nowrap="nowrap">' . "\n" .
283 $this->_treeMenu[$menu_name] .
284 '</td>' . "\n" .
285 '</tr>' . "\n" .
286 '</table>' . "\n";
288 $t = new Template_PHPLIB();
289 $t->setFile('tplfile', $this->libjsdir . 'layerstreemenu.ijs');
290 $t->setVar(array(
291 'toggle_function_name' => $toggle_function_name,
292 'img_collapse' => $img_collapse,
293 'img_collapse_corner' => $img_collapse_corner,
294 'img_collapse_corner_first' => $img_collapse_corner_first,
295 'img_collapse_first' => $img_collapse_first,
296 'img_expand' => $img_expand,
297 'img_expand_corner' => $img_expand_corner,
298 'img_expand_corner_first' => $img_expand_corner_first,
299 'img_expand_first' => $img_expand_first,
300 'img_folder_closed' => $img_folder_closed,
301 'img_folder_open' => $img_folder_open
302 ));
303 $toggle_function = $t->parse('out', 'tplfile');
304 $toggle_function =
305 '<script language="JavaScript" type="text/javascript">' . "\n" .
306 '<!--' . "\n" .
307 $toggle_function .
308 '// -->' . "\n" .
309 '</script>' . "\n";
311 $toggle =
312 '<script language="JavaScript" type="text/javascript">' . "\n" .
313 '<!--' . "\n" .
314 'if ((DOM && !Opera56 && !Konqueror22) || IE4) {' . "\n" .
315 $toggle .
316 '}' . "\n" .
317 '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" .
318 '// -->' . "\n" .
319 '</script>' . "\n";
321 $this->_treeMenu[$menu_name] = $toggle_function . "\n" . $this->_treeMenu[$menu_name] . "\n" . $toggle;
323 return $this->_treeMenu[$menu_name];
324 }
326 /**
327 * Method that returns the code of the requested Tree Menu
328 * @access public
329 * @param string $menu_name the name of the menu whose Tree Menu code
330 * has to be returned
331 * @return string
332 */
333 function getTreeMenu($menu_name)
334 {
335 return $this->_treeMenu[$menu_name];
336 }
338 /**
339 * Method that prints the code of the requested Tree Menu
340 * @access public
341 * @param string $menu_name the name of the menu whose Tree Menu code
342 * has to be printed
343 * @return void
344 */
345 function printTreeMenu($menu_name)
346 {
347 print $this->_treeMenu[$menu_name];
348 }
350 } /* END OF CLASS */
352 ?>