78cd27b3 |
1 | <?php |
2 | /******************************************************************************** |
3 | * include/spool.inc.php : spool subroutines |
4 | * ----------------------- |
5 | * |
6 | * This file is part of the banana distribution |
7 | * Copyright: See COPYING files that comes with this distribution |
8 | ********************************************************************************/ |
9 | |
ab02e8a9 |
10 | require_once dirname(__FILE__) . '/banana.inc.php'; |
78cd27b3 |
11 | |
ab02e8a9 |
12 | define('BANANA_SPOOL_VERSION', '0.3'); |
78cd27b3 |
13 | |
14 | /** Class spoolhead |
15 | * class used in thread overviews |
16 | */ |
17 | class BananaSpoolHead |
18 | { |
19 | /** date (timestamp) */ |
ab02e8a9 |
20 | public $date; |
78cd27b3 |
21 | /** subject */ |
ab02e8a9 |
22 | public $subject; |
78cd27b3 |
23 | /** author */ |
ab02e8a9 |
24 | public $from; |
78cd27b3 |
25 | /** reference of parent */ |
ab02e8a9 |
26 | public $parent = null; |
78cd27b3 |
27 | /** paren is direct */ |
ab02e8a9 |
28 | public $parent_direct; |
78cd27b3 |
29 | /** array of children */ |
ab02e8a9 |
30 | public $children = Array(); |
78cd27b3 |
31 | /** true if post is read */ |
ab02e8a9 |
32 | public $isread; |
78cd27b3 |
33 | /** number of posts deeper in this branch of tree */ |
ab02e8a9 |
34 | public $desc; |
78cd27b3 |
35 | /** same as desc, but counts only unread posts */ |
ab02e8a9 |
36 | public $descunread; |
37 | |
38 | /** storage data */ |
39 | public $storage = array(); |
78cd27b3 |
40 | |
41 | /** constructor |
42 | * @param $_date INTEGER timestamp of post |
43 | * @param $_subject STRING subject of post |
44 | * @param $_from STRING author of post |
45 | * @param $_desc INTEGER desc value (1 for a new post) |
46 | * @param $_read BOOLEAN true if read |
47 | * @param $_descunread INTEGER descunread value (0 for a new post) |
48 | */ |
ab02e8a9 |
49 | public function __construct(array &$message) |
78cd27b3 |
50 | { |
ab02e8a9 |
51 | $this->date = $message['date']; |
d7718cc5 |
52 | $this->subject = $message['subject']; |
ab02e8a9 |
53 | $this->from = $message['from']; |
54 | $this->desc = 1; |
55 | $this->isread = true; |
56 | $this->descunread = 0; |
78cd27b3 |
57 | } |
58 | } |
59 | |
78cd27b3 |
60 | |
61 | class BananaSpool |
62 | { |
ab02e8a9 |
63 | private $version; |
7972645b |
64 | private $mode; |
ab02e8a9 |
65 | |
78cd27b3 |
66 | /** group name */ |
ab02e8a9 |
67 | public $group; |
68 | /** spool */ |
69 | public $overview; |
78cd27b3 |
70 | /** array msgid => msgnum */ |
ab02e8a9 |
71 | public $ids; |
78cd27b3 |
72 | /** thread starts */ |
ab02e8a9 |
73 | public $roots; |
74 | |
78cd27b3 |
75 | |
76 | /** constructor |
77 | * @param $_group STRING group name |
78 | * @param $_display INTEGER 1 => all posts, 2 => only threads with new posts |
79 | * @param $_since INTEGER time stamp (used for read/unread) |
80 | */ |
ab02e8a9 |
81 | protected function __construct($group) |
78cd27b3 |
82 | { |
ab02e8a9 |
83 | $this->version = BANANA_SPOOL_VERSION; |
7972645b |
84 | $this->mode = Banana::SPOOL_ALL; |
ab02e8a9 |
85 | $this->group = $group; |
86 | } |
9d18c838 |
87 | |
4d20320e |
88 | public static function getSpool($group, $since = 0, $clean = false) |
ab02e8a9 |
89 | { |
90 | if (!is_null(Banana::$spool) && Banana::$spool->group == $group) { |
4d20320e |
91 | $spool =& Banana::$spool; |
78cd27b3 |
92 | } else { |
ab02e8a9 |
93 | $spool = BananaSpool::readFromFile($group); |
94 | } |
95 | if (is_null($spool)) { |
96 | $spool = new BananaSpool($group); |
78cd27b3 |
97 | } |
ab02e8a9 |
98 | Banana::$spool =& $spool; |
99 | $spool->build(); |
4d20320e |
100 | if ($clean) { |
101 | $spool->markAllAsRead(); |
102 | } |
ab02e8a9 |
103 | $spool->updateUnread($since); |
104 | return $spool; |
105 | } |
78cd27b3 |
106 | |
ab02e8a9 |
107 | private static function spoolFilename($group) |
108 | { |
df5a7969 |
109 | $file = Banana::$spool_root . '/' . Banana::$protocole->name() . '/'; |
ab02e8a9 |
110 | if (!is_dir($file)) { |
111 | mkdir($file); |
78cd27b3 |
112 | } |
7972645b |
113 | return $file . Banana::$protocole->filename(); |
78cd27b3 |
114 | } |
115 | |
ab02e8a9 |
116 | private static function readFromFile($group) |
78cd27b3 |
117 | { |
ab02e8a9 |
118 | $file = BananaSpool::spoolFilename($group); |
119 | if (!file_exists($file)) { |
120 | return null; |
78cd27b3 |
121 | } |
ab02e8a9 |
122 | $spool = unserialize(file_get_contents($file)); |
7972645b |
123 | if ($spool->version != BANANA_SPOOL_VERSION || $spool->mode != Banana::SPOOL_ALL) { |
ab02e8a9 |
124 | return null; |
125 | } |
126 | return $spool; |
127 | } |
128 | |
129 | private function compare($a, $b) |
130 | { |
131 | return ($b->date >= $a->date); |
78cd27b3 |
132 | } |
133 | |
ab02e8a9 |
134 | private function saveToFile() |
78cd27b3 |
135 | { |
ab02e8a9 |
136 | $file = BananaSpool::spoolFilename($this->group); |
137 | uasort($this->overview, array($this, 'compare')); |
78cd27b3 |
138 | |
139 | $this->roots = Array(); |
140 | foreach($this->overview as $id=>$msg) { |
141 | if (is_null($msg->parent)) { |
142 | $this->roots[] = $id; |
143 | } |
144 | } |
01972ace |
145 | |
7972645b |
146 | if ($this->mode == Banana::SPOOL_ALL) { |
147 | file_put_contents($file, serialize($this)); |
148 | } |
78cd27b3 |
149 | } |
150 | |
ab02e8a9 |
151 | private function build() |
152 | { |
153 | $threshold = 0; |
154 | |
155 | // Compute the range of indexes |
156 | list($msgnum, $first, $last) = Banana::$protocole->getIndexes(); |
157 | if ($last < $first) { |
158 | $threshold = $firt + $msgnum - $last; |
159 | $threshold = (int)(log($threshold)/log(2)); |
160 | $threshold = (2 ^ ($threshold + 1)) - 1; |
161 | } |
7972645b |
162 | if (Banana::$spool_max && Banana::$spool_max < $msgnum) { |
163 | $first = $last - Banana::$spool_max; |
ab02e8a9 |
164 | if ($first < 0) { |
165 | $first += $threshold; |
166 | } |
167 | } |
168 | $clean = $this->clean($first, $last, $msgnum); |
169 | $update = $this->update($first, $last, $msgnum); |
170 | |
171 | if ($clean || $update) { |
172 | $this->saveToFile(); |
173 | } |
174 | } |
175 | |
176 | private function clean(&$first, &$last, $msgnum) |
78cd27b3 |
177 | { |
ab02e8a9 |
178 | $do_save = false; |
179 | if (is_array($this->overview)) { |
180 | $mids = array_keys($this->overview); |
181 | foreach ($mids as $id) { |
182 | if (($first <= $last && ($id < $first || $id > $last)) |
7972645b |
183 | || ($first > $last && $id < $first && $id > $last)) { |
ab02e8a9 |
184 | $this->delid($id, false); |
185 | $do_save = true; |
186 | } |
187 | } |
188 | if (!empty($this->overview)) { |
189 | $first = max(array_keys($this->overview))+1; |
190 | } |
191 | } |
192 | return $do_save; |
78cd27b3 |
193 | } |
194 | |
ab02e8a9 |
195 | private function update(&$first, &$last, $msgnum) |
78cd27b3 |
196 | { |
ded3974d |
197 | if ($first > $last || !$msgnum) { |
ab02e8a9 |
198 | return false; |
78cd27b3 |
199 | } |
200 | |
ab02e8a9 |
201 | $messages =& Banana::$protocole->getMessageHeaders($first, $last, |
202 | array('Date', 'Subject', 'From', 'Message-ID', 'References', 'In-Reply-To')); |
78cd27b3 |
203 | |
ab02e8a9 |
204 | if (!is_array($this->ids)) { |
205 | $this->ids = array(); |
206 | } |
207 | foreach ($messages as $id=>&$message) { |
208 | $this->ids[$message['message-id']] = $id; |
209 | } |
210 | |
a20df265 |
211 | if (!is_array($this->overview)) { |
212 | $this->overview = array(); |
213 | } |
ab02e8a9 |
214 | foreach ($messages as $id=>&$message) { |
215 | if (!isset($this->overview[$id])) { |
216 | $this->overview[$id] = new BananaSpoolHead($message); |
78cd27b3 |
217 | } |
ab02e8a9 |
218 | $msg =& $this->overview[$id]; |
219 | $msgrefs = BananaMessage::formatReferences($message); |
220 | $parents = preg_grep('/^\d+$/', $msgrefs); |
221 | $msg->parent = array_pop($parents); |
222 | $msg->parent_direct = preg_match('/^\d+$/', array_pop($msgrefs)); |
78cd27b3 |
223 | |
ab02e8a9 |
224 | if (!is_null($p = $msg->parent)) { |
78cd27b3 |
225 | if (empty($this->overview[$p])) { |
ab02e8a9 |
226 | $this->overview[$p] = new BananaSpoolHead($messages[$p]); |
78cd27b3 |
227 | } |
228 | $this->overview[$p]->children[] = $id; |
229 | |
ab02e8a9 |
230 | while (!is_null($p)) { |
78cd27b3 |
231 | $this->overview[$p]->desc += $msg->desc; |
ab02e8a9 |
232 | if ($p != $this->overview[$p]->parent) { |
233 | $p = $this->overview[$p]->parent; |
234 | } else { |
235 | $p = null; |
236 | } |
78cd27b3 |
237 | } |
238 | } |
239 | } |
ab02e8a9 |
240 | Banana::$protocole->updateSpool($messages); |
241 | return true; |
78cd27b3 |
242 | } |
243 | |
ab02e8a9 |
244 | private function updateUnread($since) |
78cd27b3 |
245 | { |
ab02e8a9 |
246 | if (empty($since)) { |
247 | return; |
248 | } |
249 | |
250 | $newpostsids = Banana::$protocole->getNewIndexes($since); |
4d20320e |
251 | |
ab02e8a9 |
252 | if (empty($newpostsids)) { |
253 | return; |
254 | } |
255 | |
256 | if (!is_array($this->ids)) { |
257 | $this->ids = array(); |
258 | } |
259 | $newpostsids = array_intersect($newpostsids, array_keys($this->ids)); |
260 | foreach ($newpostsids as $mid) { |
261 | $id = $this->ids[$mid]; |
262 | if ($this->overview[$id]->isread) { |
263 | $this->overview[$id]->isread = false; |
ab02e8a9 |
264 | while (isset($id)) { |
265 | $this->overview[$id]->descunread ++; |
266 | $id = $this->overview[$id]->parent; |
78cd27b3 |
267 | } |
268 | } |
ab02e8a9 |
269 | } |
270 | } |
78cd27b3 |
271 | |
ab02e8a9 |
272 | public function setMode($mode) |
273 | { |
7972645b |
274 | $this->mode = $mode; |
ab02e8a9 |
275 | switch ($mode) { |
276 | case Banana::SPOOL_UNREAD: |
277 | foreach ($this->roots as $k=>$i) { |
278 | if ($this->overview[$i]->descunread == 0) { |
279 | $this->killdesc($i); |
280 | unset($this->roots[$k]); |
78cd27b3 |
281 | } |
282 | } |
ab02e8a9 |
283 | break; |
78cd27b3 |
284 | } |
285 | } |
286 | |
7972645b |
287 | /** Mark the given id as read |
288 | * @param id MSGNUM of post |
289 | */ |
290 | public function markAsRead($id) |
291 | { |
292 | if (!$this->overview[$id]->isread) { |
293 | $this->overview[$id]->isread = true; |
294 | while (isset($id)) { |
295 | $this->overview[$id]->descunread--; |
296 | $id = $this->overview[$id]->parent; |
297 | } |
298 | } |
299 | } |
300 | |
301 | /** Mark all unread messages as read |
302 | */ |
303 | public function markAllAsRead(array &$array = null) |
304 | { |
305 | if (is_null($array)) { |
306 | $array =& $this->roots; |
307 | } |
6b46a997 |
308 | if (!is_array($this->roots)) { |
309 | return; |
310 | } |
7972645b |
311 | foreach ($array as $id) { |
312 | if (!$this->overview[$id]->isread) { |
313 | $this->markAsRead($id); |
314 | } |
315 | if ($this->overview[$id]->descunread) { |
316 | $this->markAllAsRead($this->overview[$id]->children); |
317 | } |
318 | } |
319 | } |
320 | |
78cd27b3 |
321 | /** kill post and childrens |
322 | * @param $_id MSGNUM of post |
323 | */ |
ab02e8a9 |
324 | private function killdesc($_id) |
78cd27b3 |
325 | { |
326 | if (sizeof($this->overview[$_id]->children)) { |
327 | foreach ($this->overview[$_id]->children as $c) { |
328 | $this->killdesc($c); |
329 | } |
330 | } |
331 | unset($this->overview[$_id]); |
332 | if (($msgid = array_search($_id, $this->ids)) !== false) { |
333 | unset($this->ids[$msgid]); |
334 | } |
335 | } |
336 | |
337 | /** delete a post from overview |
338 | * @param $_id MSGNUM of post |
339 | */ |
ab02e8a9 |
340 | public function delid($_id, $write = true) |
78cd27b3 |
341 | { |
342 | if (isset($this->overview[$_id])) { |
343 | if (sizeof($this->overview[$_id]->parent)) { |
344 | $this->overview[$this->overview[$_id]->parent]->children = |
345 | array_diff($this->overview[$this->overview[$_id]->parent]->children, array($_id)); |
346 | if (sizeof($this->overview[$_id]->children)) { |
347 | $this->overview[$this->overview[$_id]->parent]->children = |
348 | array_merge($this->overview[$this->overview[$_id]->parent]->children, $this->overview[$_id]->children); |
349 | foreach ($this->overview[$_id]->children as $c) { |
350 | $this->overview[$c]->parent = $this->overview[$_id]->parent; |
351 | $this->overview[$c]->parent_direct = false; |
352 | } |
353 | } |
354 | $p = $this->overview[$_id]->parent; |
355 | while ($p) { |
356 | $this->overview[$p]->desc--; |
357 | $p = $this->overview[$p]->parent; |
358 | } |
359 | } elseif (sizeof($this->overview[$_id]->children)) { |
360 | foreach ($this->overview[$_id]->children as $c) { |
361 | $this->overview[$c]->parent = null; |
362 | } |
363 | } |
364 | unset($this->overview[$_id]); |
365 | $msgid = array_search($_id, $this->ids); |
b2434350 |
366 | if ($msgid !== false) { |
78cd27b3 |
367 | unset($this->ids[$msgid]); |
368 | } |
b2434350 |
369 | $msgid = array_search($_id, $this->roots); |
370 | if ($msgid !== false) { |
371 | unset($this->roots[$msgid]); |
372 | } |
78cd27b3 |
373 | |
ab02e8a9 |
374 | if ($write) { |
e0f557df |
375 | $this->markAllAsRead(); |
ab02e8a9 |
376 | $this->saveToFile(); |
377 | } |
78cd27b3 |
378 | } |
379 | } |
380 | |
ab02e8a9 |
381 | private function formatDate($stamp) |
382 | { |
383 | $today = intval(time() / (24*3600)); |
384 | $dday = intval($stamp / (24*3600)); |
385 | |
386 | if ($today == $dday) { |
387 | $format = "%H:%M"; |
388 | } elseif ($today == 1 + $dday) { |
389 | $format = _b_('hier')." %H:%M"; |
390 | } elseif ($today < 7 + $dday) { |
391 | $format = '%a %H:%M'; |
392 | } else { |
393 | $format = '%a %e %b'; |
394 | } |
395 | return utf8_encode(strftime($format, $stamp)); |
396 | } |
397 | |
78cd27b3 |
398 | /** displays children tree of a post |
399 | * @param $_id INTEGER MSGNUM of post |
400 | * @param $_index INTEGER linear number of post in the tree |
401 | * @param $_first INTEGER linear number of first post displayed |
402 | * @param $_last INTEGER linear number of last post displayed |
403 | * @param $_ref STRING MSGNUM of current post |
404 | * @param $_pfx_node STRING prefix used for current node |
405 | * @param $_pfx_end STRING prefix used for children of current node |
406 | * @param $_head BOOLEAN true if first post in thread |
e2347ffc |
407 | * |
d7718cc5 |
408 | * If you want to analyse subject, you can define the function hook_formatDisplayHeader |
78cd27b3 |
409 | */ |
ab02e8a9 |
410 | private function _to_html($_id, $_index, $_first=0, $_last=0, $_ref="", $_pfx_node="", $_pfx_end="", $_head=true) |
78cd27b3 |
411 | { |
ab02e8a9 |
412 | static $spfx_f, $spfx_n, $spfx_Tnd, $spfx_Lnd, $spfx_snd, $spfx_T, $spfx_L, $spfx_s, $spfx_e, $spfx_I; |
413 | if (!isset($spfx_f)) { |
414 | $spfx_f = Banana::$page->makeImg(Array('img' => 'k1', 'alt' => 'o', 'height' => 21, 'width' => 9)); |
415 | $spfx_n = Banana::$page->makeImg(Array('img' => 'k2', 'alt' => '*', 'height' => 21, 'width' => 9)); |
416 | $spfx_Tnd = Banana::$page->makeImg(Array('img' => 'T-direct', 'alt' => '+', 'height' => 21, 'width' => 12)); |
417 | $spfx_Lnd = Banana::$page->makeImg(Array('img' => 'L-direct', 'alt' => '`', 'height' => 21, 'width' => 12)); |
418 | $spfx_snd = Banana::$page->makeImg(Array('img' => 's-direct', 'alt' => '-', 'height' => 21, 'width' => 5)); |
419 | $spfx_T = Banana::$page->makeImg(Array('img' => 'T', 'alt' => '+', 'height' => 21, 'width' => 12)); |
420 | $spfx_L = Banana::$page->makeImg(Array('img' => 'L', 'alt' => '`', 'height' => 21, 'width' => 12)); |
421 | $spfx_s = Banana::$page->makeImg(Array('img' => 's', 'alt' => '-', 'height' => 21, 'width' => 5)); |
422 | $spfx_e = Banana::$page->makeImg(Array('img' => 'e', 'alt' => ' ', 'height' => 21, 'width' => 12)); |
423 | $spfx_I = Banana::$page->makeImg(Array('img' => 'I', 'alt' => '|', 'height' => 21, 'width' => 12)); |
78cd27b3 |
424 | } |
425 | |
ab02e8a9 |
426 | $overview =& $this->overview[$_id]; |
427 | if ($_index + $overview->desc < $_first || $_index > $_last) { |
428 | return ''; |
429 | } |
78cd27b3 |
430 | |
ab02e8a9 |
431 | $res = ''; |
432 | if ($_index >= $_first) { |
433 | $hc = empty($overview->children); |
434 | |
435 | $res .= '<tr class="' . ($_index%2 ? 'pair' : 'impair') . ($overview->isread ? '' : ' new') . "\">\n"; |
436 | $res .= '<td class="date">' . $this->formatDate($overview->date) . " </td>\n"; |
437 | $res .= '<td class="subj' . ($_index == $_ref ? ' cur' : '') . '">' |
438 | . $_pfx_node .($hc ? ($_head ? $spfx_f : ($overview->parent_direct ? $spfx_s : $spfx_snd)) : $spfx_n); |
439 | $subject = $overview->subject; |
d7718cc5 |
440 | if (function_exists('hook_formatDisplayHeader')) { |
441 | list($subject, $link) = hook_formatDisplayHeader('subject', $subject, true); |
442 | } else { |
dc5684a2 |
443 | $subject = banana_catchFormats(banana_htmlentities(stripslashes($subject))); |
d7718cc5 |
444 | $link = null; |
445 | } |
ab02e8a9 |
446 | if (empty($subject)) { |
71d6c865 |
447 | $subject = _b_('(pas de sujet)'); |
448 | } |
ab02e8a9 |
449 | if ($_index != $_ref) { |
450 | $subject = Banana::$page->makeLink(Array('group' => $this->group, 'artid' => $_id, |
451 | 'text' => $subject, 'popup' => $subject)); |
78cd27b3 |
452 | } |
ab02e8a9 |
453 | $res .= ' ' . $subject . $link; |
454 | $res .= "</td>\n<td class='from'>" . BananaMessage::formatFrom($overview->from) . "</td>\n</tr>"; |
78cd27b3 |
455 | |
ab02e8a9 |
456 | if ($hc) { |
457 | return $res; |
458 | } |
78cd27b3 |
459 | } |
460 | |
461 | $_index ++; |
ab02e8a9 |
462 | $children = $overview->children; |
78cd27b3 |
463 | while ($child = array_shift($children)) { |
ab02e8a9 |
464 | $overview =& $this->overview[$child]; |
465 | if ($_index > $_last) { |
466 | return $res; |
467 | } |
468 | if ($_index + $overview->desc >= $_first) { |
78cd27b3 |
469 | if (sizeof($children)) { |
470 | $res .= $this->_to_html($child, $_index, $_first, $_last, $_ref, |
ab02e8a9 |
471 | $_pfx_end . ($overview->parent_direct ? $spfx_T : $spfx_Tnd), |
472 | $_pfx_end . $spfx_I, false); |
78cd27b3 |
473 | } else { |
474 | $res .= $this->_to_html($child, $_index, $_first, $_last, $_ref, |
ab02e8a9 |
475 | $_pfx_end . ($overview->parent_direct ? $spfx_L : $spfx_Lnd), |
476 | $_pfx_end . $spfx_e, false); |
78cd27b3 |
477 | } |
478 | } |
ab02e8a9 |
479 | $_index += $overview->desc; |
78cd27b3 |
480 | } |
481 | |
482 | return $res; |
483 | } |
484 | |
485 | /** Displays overview |
486 | * @param $_first INTEGER MSGNUM of first post |
487 | * @param $_last INTEGER MSGNUM of last post |
488 | * @param $_ref STRING MSGNUM of current/selectionned post |
489 | */ |
ab02e8a9 |
490 | public function toHtml($first = 0, $overview = false) |
78cd27b3 |
491 | { |
ab02e8a9 |
492 | $res = ''; |
493 | |
494 | if (!$overview) { |
495 | $_first = $first; |
7972645b |
496 | $_last = $first + Banana::$spool_tmax - 1; |
ab02e8a9 |
497 | $_ref = null; |
2ba32e89 |
498 | } else { |
ab02e8a9 |
499 | $_ref = $this->getNdx($first); |
7972645b |
500 | $_last = $_ref + Banana::$spool_tafter; |
501 | $_first = $_ref - Banana::$spool_tbefore; |
ab02e8a9 |
502 | if ($_first < 0) { |
503 | $_last -= $_first; |
504 | } |
78cd27b3 |
505 | } |
78cd27b3 |
506 | $index = 1; |
ab02e8a9 |
507 | foreach ($this->roots as $id) { |
508 | $res .= $this->_to_html($id, $index, $_first, $_last, $_ref); |
509 | $index += $this->overview[$id]->desc ; |
510 | if ($index > $_last) { |
511 | break; |
78cd27b3 |
512 | } |
e230b41a |
513 | } |
ab02e8a9 |
514 | return $res; |
78cd27b3 |
515 | } |
516 | |
517 | /** computes linear post index |
518 | * @param $_id INTEGER MSGNUM of post |
519 | * @return INTEGER linear index of post |
520 | */ |
ab02e8a9 |
521 | public function getNdX($_id) |
78cd27b3 |
522 | { |
523 | $ndx = 1; |
524 | $id_cur = $_id; |
525 | while (true) { |
526 | $id_parent = $this->overview[$id_cur]->parent; |
527 | if (is_null($id_parent)) break; |
528 | $pos = array_search($id_cur, $this->overview[$id_parent]->children); |
529 | |
530 | for ($i = 0; $i < $pos ; $i++) { |
531 | $ndx += $this->overview[$this->overview[$id_parent]->children[$i]]->desc; |
532 | } |
d8d416c4 |
533 | $ndx++; //noeud père |
78cd27b3 |
534 | |
535 | $id_cur = $id_parent; |
536 | } |
537 | |
538 | foreach ($this->roots as $i) { |
539 | if ($i==$id_cur) { |
540 | break; |
541 | } |
542 | $ndx += $this->overview[$i]->desc; |
543 | } |
544 | return $ndx; |
545 | } |
2ba32e89 |
546 | |
547 | /** Return root message of the given thread |
548 | * @param id INTEGER id of a message |
549 | */ |
ab02e8a9 |
550 | public function root($id) |
551 | { |
2ba32e89 |
552 | $id_cur = $id; |
553 | while (true) { |
554 | $id_parent = $this->overview[$id_cur]->parent; |
555 | if (is_null($id_parent)) break; |
556 | $id_cur = $id_parent; |
557 | } |
558 | return $id_cur; |
559 | } |
560 | |
561 | /** Returns previous thread root index |
562 | * @param id INTEGER message number |
563 | */ |
ab02e8a9 |
564 | public function prevThread($id) |
2ba32e89 |
565 | { |
566 | $root = $this->root($id); |
567 | $last = null; |
568 | foreach ($this->roots as $i) { |
569 | if ($i == $root) { |
570 | return $last; |
571 | } |
572 | $last = $i; |
573 | } |
574 | return $last; |
575 | } |
576 | |
577 | /** Returns next thread root index |
578 | * @param id INTEGER message number |
579 | */ |
ab02e8a9 |
580 | public function nextThread($id) |
2ba32e89 |
581 | { |
582 | $root = $this->root($id); |
583 | $ok = false; |
584 | foreach ($this->roots as $i) { |
585 | if ($ok) { |
586 | return $i; |
587 | } |
588 | if ($i == $root) { |
589 | $ok = true; |
590 | } |
591 | } |
592 | return null; |
593 | } |
594 | |
595 | /** Return prev post in the thread |
596 | * @param id INTEGER message number |
597 | */ |
ab02e8a9 |
598 | public function prevPost($id) |
2ba32e89 |
599 | { |
600 | $parent = $this->overview[$id]->parent; |
601 | if (is_null($parent)) { |
602 | return null; |
603 | } |
604 | $last = $parent; |
605 | foreach ($this->overview[$parent]->children as $child) { |
606 | if ($child == $id) { |
607 | return $last; |
608 | } |
609 | $last = $child; |
610 | } |
611 | return null; |
612 | } |
613 | |
614 | /** Return next post in the thread |
615 | * @param id INTEGER message number |
616 | */ |
ab02e8a9 |
617 | public function nextPost($id) |
2ba32e89 |
618 | { |
619 | if (count($this->overview[$id]->children) != 0) { |
620 | return $this->overview[$id]->children[0]; |
621 | } |
622 | |
623 | $cur = $id; |
624 | while (true) { |
625 | $parent = $this->overview[$cur]->parent; |
626 | if (is_null($parent)) { |
627 | return null; |
628 | } |
629 | $ok = false; |
630 | foreach ($this->overview[$parent]->children as $child) { |
631 | if ($ok) { |
632 | return $child; |
633 | } |
634 | if ($child == $cur) { |
635 | $ok = true; |
636 | } |
637 | } |
638 | $cur = $parent; |
639 | } |
640 | return null; |
641 | } |
dc12019c |
642 | |
643 | /** Look for an unread message in the thread rooted by the message |
644 | * @param id INTEGER message number |
645 | */ |
ab02e8a9 |
646 | private function _nextUnread($id) |
dc12019c |
647 | { |
648 | if (!$this->overview[$id]->isread) { |
649 | return $id; |
650 | } |
651 | foreach ($this->overview[$id]->children as $child) { |
6aa1f5e4 |
652 | $unread = $this->_nextUnread($child); |
653 | if (!is_null($unread)) { |
654 | return $unread; |
655 | } |
dc12019c |
656 | } |
657 | return null; |
658 | } |
659 | |
660 | /** Find next unread message |
661 | * @param id INTEGER message number |
662 | */ |
ab02e8a9 |
663 | public function nextUnread($id = null) |
dc12019c |
664 | { |
27db62eb |
665 | if (!is_null($id)) { |
666 | // Look in message children |
667 | foreach ($this->overview[$id]->children as $child) { |
668 | $next = $this->_nextUnread($child); |
669 | if (!is_null($next)) { |
670 | return $next; |
671 | } |
dc12019c |
672 | } |
673 | } |
674 | |
675 | // Look in current thread |
676 | $cur = $id; |
27db62eb |
677 | do { |
678 | $parent = is_null($cur) ? null : $this->overview[$cur]->parent; |
679 | $ok = is_null($cur) ? true : false; |
a02dd64a |
680 | if (!is_null($parent)) { |
dc12019c |
681 | $array = &$this->overview[$parent]->children; |
682 | } else { |
683 | $array = &$this->roots; |
684 | } |
685 | foreach ($array as $child) { |
686 | if ($ok) { |
687 | $next = $this->_nextUnread($child); |
688 | if (!is_null($next)) { |
689 | return $next; |
690 | } |
691 | } |
692 | if ($child == $cur) { |
693 | $ok = true; |
694 | } |
695 | } |
696 | $cur = $parent; |
27db62eb |
697 | } while(!is_null($cur)); |
dc12019c |
698 | return null; |
699 | } |
78cd27b3 |
700 | } |
701 | |
d8d416c4 |
702 | // vim:set et sw=4 sts=4 ts=4 enc=utf-8: |
78cd27b3 |
703 | ?> |