Context Navigation

Back to Ticket #7518

Ticket #7518: classes.php

File classes.php, 25.2 KB (added by betsyk, 17 years ago)
See new lines 577-580

Line
1	<?php
2
3	class WP {
4	var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term');
5
6	var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm');
7	var $extra_query_vars = array();
8
9	var $query_vars;
10	var $query_string;
11	var $request;
12	var $matched_rule;
13	var $matched_query;
14	var $did_permalink = false;
15
16	function add_query_var($qv) {
17	if ( !in_array($qv, $this->public_query_vars) )
18	$this->public_query_vars[] = $qv;
19	}
20
21	function set_query_var($key, $value) {
22	$this->query_vars[$key] = $value;
23	}
24
25	function parse_request($extra_query_vars = '') {
26	global $wp_rewrite;
27
28	$this->query_vars = array();
29	$taxonomy_query_vars = array();
30
31	if ( is_array($extra_query_vars) )
32	$this->extra_query_vars = & $extra_query_vars;
33	else if (! empty($extra_query_vars))
34	parse_str($extra_query_vars, $this->extra_query_vars);
35
36	// Process PATH_INFO, REQUEST_URI, and 404 for permalinks.
37
38	// Fetch the rewrite rules.
39	$rewrite = $wp_rewrite->wp_rewrite_rules();
40
41	if (! empty($rewrite)) {
42	// If we match a rewrite rule, this will be cleared.
43	$error = '404';
44	$this->did_permalink = true;
45
46	if ( isset($_SERVER['PATH_INFO']) )
47	$pathinfo = $_SERVER['PATH_INFO'];
48	else
49	$pathinfo = '';
50	$pathinfo_array = explode('?', $pathinfo);
51	$pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
52	$req_uri = $_SERVER['REQUEST_URI'];
53	$req_uri_array = explode('?', $req_uri);
54	$req_uri = $req_uri_array[0];
55	$self = $_SERVER['PHP_SELF'];
56	$home_path = parse_url(get_option('home'));
57	if ( isset($home_path['path']) )
58	$home_path = $home_path['path'];
59	else
60	$home_path = '';
61	$home_path = trim($home_path, '/');
62
63	// Trim path info from the end and the leading home path from the
64	// front. For path info requests, this leaves us with the requesting
65	// filename, if any. For 404 requests, this leaves us with the
66	// requested permalink.
67	$req_uri = str_replace($pathinfo, '', rawurldecode($req_uri));
68	$req_uri = trim($req_uri, '/');
69	$req_uri = preg_replace("\|^$home_path\|", '', $req_uri);
70	$req_uri = trim($req_uri, '/');
71	$pathinfo = trim($pathinfo, '/');
72	$pathinfo = preg_replace("\|^$home_path\|", '', $pathinfo);
73	$pathinfo = trim($pathinfo, '/');
74	$self = trim($self, '/');
75	$self = preg_replace("\|^$home_path\|", '', $self);
76	$self = trim($self, '/');
77
78	// The requested permalink is in $pathinfo for path info requests and
79	// $req_uri for other requests.
80	if ( ! empty($pathinfo) && !preg_match('\|^.*' . $wp_rewrite->index . '$\|', $pathinfo) ) {
81	$request = $pathinfo;
82	} else {
83	// If the request uri is the index, blank it out so that we don't try to match it against a rule.
84	if ( $req_uri == $wp_rewrite->index )
85	$req_uri = '';
86	$request = $req_uri;
87	}
88
89	$this->request = $request;
90
91	// Look for matches.
92	$request_match = $request;
93	foreach ($rewrite as $match => $query) {
94	// Don't try to match against AtomPub calls
95	if ( $req_uri == 'wp-app.php' )
96	break;
97
98	// If the requesting file is the anchor of the match, prepend it
99	// to the path info.
100	if ((! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request)) {
101	$request_match = $req_uri . '/' . $request;
102	}
103
104	if (preg_match("!^$match!", $request_match, $matches) \|\|
105	preg_match("!^$match!", urldecode($request_match), $matches)) {
106	// Got a match.
107	$this->matched_rule = $match;
108
109	// Trim the query of everything up to the '?'.
110	$query = preg_replace("!^.+\?!", '', $query);
111
112	// Substitute the substring matches into the query.
113	eval("\$query = \"" . addslashes($query) . "\";");
114	$this->matched_query = $query;
115
116	// Parse the query.
117	parse_str($query, $perma_query_vars);
118
119	// If we're processing a 404 request, clear the error var
120	// since we found something.
121	if (isset($_GET['error']))
122	unset($_GET['error']);
123
124	if (isset($error))
125	unset($error);
126
127	break;
128	}
129	}
130
131	// If req_uri is empty or if it is a request for ourself, unset error.
132	if (empty($request) \|\| $req_uri == $self \|\| strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false) {
133	if (isset($_GET['error']))
134	unset($_GET['error']);
135
136	if (isset($error))
137	unset($error);
138
139	if (isset($perma_query_vars) && strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false)
140	unset($perma_query_vars);
141
142	$this->did_permalink = false;
143	}
144	}
145
146	$this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);
147
148	foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t )
149	if ( isset($t->query_var) )
150	$taxonomy_query_vars[$t->query_var] = $taxonomy;
151
152	for ($i=0; $i<count($this->public_query_vars); $i += 1) {
153	$wpvar = $this->public_query_vars[$i];
154	if (isset($this->extra_query_vars[$wpvar]))
155	$this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar];
156	elseif (isset($GLOBALS[$wpvar]))
157	$this->query_vars[$wpvar] = $GLOBALS[$wpvar];
158	elseif (!empty($_POST[$wpvar]))
159	$this->query_vars[$wpvar] = $_POST[$wpvar];
160	elseif (!empty($_GET[$wpvar]))
161	$this->query_vars[$wpvar] = $_GET[$wpvar];
162	elseif (!empty($perma_query_vars[$wpvar]))
163	$this->query_vars[$wpvar] = $perma_query_vars[$wpvar];
164
165	if ( !empty( $this->query_vars[$wpvar] ) ) {
166	$this->query_vars[$wpvar] = (string) $this->query_vars[$wpvar];
167	if ( in_array( $wpvar, $taxonomy_query_vars ) ) {
168	$this->query_vars['taxonomy'] = $taxonomy_query_vars[$wpvar];
169	$this->query_vars['term'] = $this->query_vars[$wpvar];
170	}
171	}
172	}
173
174	foreach ($this->private_query_vars as $var) {
175	if (isset($this->extra_query_vars[$var]))
176	$this->query_vars[$var] = $this->extra_query_vars[$var];
177	elseif (isset($GLOBALS[$var]) && '' != $GLOBALS[$var])
178	$this->query_vars[$var] = $GLOBALS[$var];
179	}
180
181	if ( isset($error) )
182	$this->query_vars['error'] = $error;
183
184	$this->query_vars = apply_filters('request', $this->query_vars);
185
186	do_action_ref_array('parse_request', array(&$this));
187	}
188
189	function send_headers() {
190	@header('X-Pingback: '. get_bloginfo('pingback_url'));
191	if ( is_user_logged_in() )
192	nocache_headers();
193	if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
194	status_header( 404 );
195	if ( !is_user_logged_in() )
196	nocache_headers();
197	@header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
198	} else if ( empty($this->query_vars['feed']) ) {
199	@header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
200	} else {
201	// We're showing a feed, so WP is indeed the only thing that last changed
202	if ( !empty($this->query_vars['withcomments'])
203	\|\| ( empty($this->query_vars['withoutcomments'])
204	&& ( !empty($this->query_vars['p'])
205	\|\| !empty($this->query_vars['name'])
206	\|\| !empty($this->query_vars['page_id'])
207	\|\| !empty($this->query_vars['pagename'])
208	\|\| !empty($this->query_vars['attachment'])
209	\|\| !empty($this->query_vars['attachment_id'])
210	)
211	)
212	)
213	$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT';
214	else
215	$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
216	$wp_etag = '"' . md5($wp_last_modified) . '"';
217	@header("Last-Modified: $wp_last_modified");
218	@header("ETag: $wp_etag");
219
220	// Support for Conditional GET
221	if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
222	$client_etag = stripslashes(stripslashes($_SERVER['HTTP_IF_NONE_MATCH']));
223	else $client_etag = false;
224
225	$client_last_modified = empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? '' : trim($_SERVER['HTTP_IF_MODIFIED_SINCE']);
226	// If string is empty, return 0. If not, attempt to parse into a timestamp
227	$client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
228
229	// Make a timestamp for our most recent modification...
230	$wp_modified_timestamp = strtotime($wp_last_modified);
231
232	if ( ($client_last_modified && $client_etag) ?
233	(($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
234	(($client_modified_timestamp >= $wp_modified_timestamp) \|\| ($client_etag == $wp_etag)) ) {
235	status_header( 304 );
236	exit;
237	}
238	}
239
240	do_action_ref_array('send_headers', array(&$this));
241	}
242
243	function build_query_string() {
244	$this->query_string = '';
245	foreach (array_keys($this->query_vars) as $wpvar) {
246	if ( '' != $this->query_vars[$wpvar] ) {
247	$this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
248	if ( !is_scalar($this->query_vars[$wpvar]) ) // Discard non-scalars.
249	continue;
250	$this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]);
251	}
252	}
253
254	// query_string filter deprecated. Use request filter instead.
255	if ( has_filter('query_string') ) { // Don't bother filtering and parsing if no plugins are hooked in.
256	$this->query_string = apply_filters('query_string', $this->query_string);
257	parse_str($this->query_string, $this->query_vars);
258	}
259	}
260
261	function register_globals() {
262	global $wp_query;
263	// Extract updated query vars back into global namespace.
264	foreach ($wp_query->query_vars as $key => $value) {
265	$GLOBALS[$key] = $value;
266	}
267
268	$GLOBALS['query_string'] = & $this->query_string;
269	$GLOBALS['posts'] = & $wp_query->posts;
270	$GLOBALS['post'] = & $wp_query->post;
271	$GLOBALS['request'] = & $wp_query->request;
272
273	if ( is_single() \|\| is_page() ) {
274	$GLOBALS['more'] = 1;
275	$GLOBALS['single'] = 1;
276	}
277	}
278
279	function init() {
280	wp_get_current_user();
281	}
282
283	function query_posts() {
284	global $wp_the_query;
285	$this->build_query_string();
286	$wp_the_query->query($this->query_vars);
287	}
288
289	function handle_404() {
290	global $wp_query;
291	// Issue a 404 if a permalink request doesn't match any posts. Don't
292	// issue a 404 if one was already issued, if the request was a search,
293	// or if the request was a regular query string request rather than a
294	// permalink request.
295	if ( (0 == count($wp_query->posts)) && !is_404() && !is_search() && ( $this->did_permalink \|\| (!empty($_SERVER['QUERY_STRING']) && (false === strpos($_SERVER['REQUEST_URI'], '?'))) ) ) {
296	$wp_query->set_404();
297	status_header( 404 );
298	nocache_headers();
299	} elseif( is_404() != true ) {
300	status_header( 200 );
301	}
302	}
303
304	function main($query_args = '') {
305	$this->init();
306	$this->parse_request($query_args);
307	$this->send_headers();
308	$this->query_posts();
309	$this->handle_404();
310	$this->register_globals();
311	do_action_ref_array('wp', array(&$this));
312	}
313
314	function WP() {
315	// Empty.
316	}
317	}
318
319	class WP_Error {
320	var $errors = array();
321	var $error_data = array();
322
323	function WP_Error($code = '', $message = '', $data = '') {
324	if ( empty($code) )
325	return;
326
327	$this->errors[$code][] = $message;
328
329	if ( ! empty($data) )
330	$this->error_data[$code] = $data;
331	}
332
333	function get_error_codes() {
334	if ( empty($this->errors) )
335	return array();
336
337	return array_keys($this->errors);
338	}
339
340	function get_error_code() {
341	$codes = $this->get_error_codes();
342
343	if ( empty($codes) )
344	return '';
345
346	return $codes[0];
347	}
348
349	function get_error_messages($code = '') {
350	// Return all messages if no code specified.
351	if ( empty($code) ) {
352	$all_messages = array();
353	foreach ( $this->errors as $code => $messages )
354	$all_messages = array_merge($all_messages, $messages);
355
356	return $all_messages;
357	}
358
359	if ( isset($this->errors[$code]) )
360	return $this->errors[$code];
361	else
362	return array();
363	}
364
365	function get_error_message($code = '') {
366	if ( empty($code) )
367	$code = $this->get_error_code();
368	$messages = $this->get_error_messages($code);
369	if ( empty($messages) )
370	return '';
371	return $messages[0];
372	}
373
374	function get_error_data($code = '') {
375	if ( empty($code) )
376	$code = $this->get_error_code();
377
378	if ( isset($this->error_data[$code]) )
379	return $this->error_data[$code];
380	return null;
381	}
382
383	function add($code, $message, $data = '') {
384	$this->errors[$code][] = $message;
385	if ( ! empty($data) )
386	$this->error_data[$code] = $data;
387	}
388
389	function add_data($data, $code = '') {
390	if ( empty($code) )
391	$code = $this->get_error_code();
392
393	$this->error_data[$code] = $data;
394	}
395	}
396
397	function is_wp_error($thing) {
398	if ( is_object($thing) && is_a($thing, 'WP_Error') )
399	return true;
400	return false;
401	}
402
403	/*
404	* A class for displaying various tree-like structures.
405	* Extend the Walker class to use it, see examples at the bottom
406	*/
407	class Walker {
408	var $tree_type;
409	var $db_fields;
410
411	//abstract callbacks
412	function start_lvl(&$output) {}
413	function end_lvl(&$output) {}
414	function start_el(&$output) {}
415	function end_el(&$output) {}
416
417	/*
418	* display one element if the element doesn't have any children
419	* otherwise, display the element and its children
420	*/
421	function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ) {
422
423	if ( !$element )
424	return;
425
426	$id_field = $this->db_fields['id'];
427	$parent_field = $this->db_fields['parent'];
428
429	//display this element
430	$cb_args = array_merge( array(&$output, $element, $depth), $args);
431	call_user_func_array(array(&$this, 'start_el'), $cb_args);
432
433	if ( $max_depth == 0 \|\|
434	($max_depth != 0 && $max_depth > $depth+1 )) { //whether to descend
435
436	$num_elements = sizeof( $children_elements );
437	for ( $i = 0; $i < $num_elements; $i++ ) {
438
439	$child = $children_elements[$i];
440	if ( $child->$parent_field == $element->$id_field ) {
441
442	if ( !isset($newlevel) ) {
443	$newlevel = true;
444	//start the child delimiter
445	$cb_args = array_merge( array(&$output, $depth), $args);
446	call_user_func_array(array(&$this, 'start_lvl'), $cb_args);
447	}
448
449	array_splice( $children_elements, $i, 1 );
450	$num_elements--;
451	$this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output );
452	$i = -1;
453	}
454	}
455	}
456
457	if ( isset($newlevel) && $newlevel ){
458	//end the child delimiter
459	$cb_args = array_merge( array(&$output, $depth), $args);
460	call_user_func_array(array(&$this, 'end_lvl'), $cb_args);
461	}
462
463	//end this element
464	$cb_args = array_merge( array(&$output, $element, $depth), $args);
465	call_user_func_array(array(&$this, 'end_el'), $cb_args);
466	}
467
468	/*
469	* displays array of elements hierarchically
470	* it is a generic function which does not assume any existing order of elements
471	* max_depth = -1 means flatly display every element
472	* max_depth = 0 means display all levels
473	* max_depth > 0 specifies the number of display levels.
474	*/
475	function walk( $elements, $max_depth) {
476
477	$args = array_slice(func_get_args(), 2);
478	$output = '';
479
480	if ($max_depth < -1) //invalid parameter
481	return $output;
482
483	if (empty($elements)) //nothing to walk
484	return $output;
485
486	$id_field = $this->db_fields['id'];
487	$parent_field = $this->db_fields['parent'];
488
489	// flat display
490	if ( -1 == $max_depth ) {
491	$empty_array = array();
492	foreach ( $elements as $e )
493	$this->display_element( $e, $empty_array, 1, 0, $args, $output );
494	return $output;
495	}
496
497	/*
498	* need to display in hierarchical order
499	* splice elements into two buckets: those without parent and those with parent
500	*/
501	$top_level_elements = array();
502	$children_elements = array();
503	foreach ( $elements as $e) {
504	if ( 0 == $e->$parent_field )
505	$top_level_elements[] = $e;
506	else
507	$children_elements[] = $e;
508	}
509
510	/*
511	* none of the elements is top level
512	* the first one must be root of the sub elements
513	*/
514	if ( !$top_level_elements ) {
515
516	$root = $children_elements[0];
517	$num_elements = sizeof($children_elements);
518	for ( $i = 0; $i < $num_elements; $i++ ) {
519
520	$child = $children_elements[$i];
521	if ($root->$parent_field == $child->$parent_field ) {
522	$top_level_elements[] = $child;
523	array_splice( $children_elements, $i, 1 );
524	$num_elements--;
525	$i--;
526	}
527	}
528	}
529
530	foreach ( $top_level_elements as $e )
531	$this->display_element( $e, $children_elements, $max_depth, 0, $args, $output );
532
533	/*
534	* if we are displaying all levels, and remaining children_elements is not empty,
535	* then we got orphans, which should be displayed regardless
536	*/
537	if ( ( $max_depth == 0 ) && sizeof( $children_elements ) > 0 ) {
538	$empty_array = array();
539	foreach ( $children_elements as $orphan_e )
540	$this->display_element( $orphan_e, $empty_array, 1, 0, $args, $output );
541	}
542	return $output;
543	}
544	}
545
546	class Walker_Page extends Walker {
547	var $tree_type = 'page';
548	var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); //TODO: decouple this
549
550	function start_lvl(&$output, $depth) {
551	$indent = str_repeat("\t", $depth);
552	$output .= "\n$indent<ul>\n";
553	}
554
555	function end_lvl(&$output, $depth) {
556	$indent = str_repeat("\t", $depth);
557	$output .= "$indent</ul>\n";
558	}
559
560	function start_el(&$output, $page, $depth, $current_page, $args) {
561	if ( $depth )
562	$indent = str_repeat("\t", $depth);
563	else
564	$indent = '';
565
566	extract($args, EXTR_SKIP);
567	$css_class = 'page_item page-item-'.$page->ID;
568	if ( !empty($current_page) ) {
569	$_current_page = get_page( $current_page );
570	if ( in_array($page->ID, (array) $_current_page->ancestors) )
571	$css_class .= ' current_page_ancestor';
572	if ( $page->ID == $current_page )
573	$css_class .= ' current_page_item';
574	elseif ( $_current_page && $page->ID == $_current_page->post_parent )
575	$css_class .= ' current_page_parent';
576	}
577	if ( empty($current_page) ) {
578	if ($page->ID == get_settings('page_for_posts'))
579	$css_class .= ' current_page_parent';
580	}
581
582	$output .= $indent . '<li class="' . $css_class . '"><a href="' . get_page_link($page->ID) . '" title="' . attribute_escape(apply_filters('the_title', $page->post_title)) . '">' . apply_filters('the_title', $page->post_title) . '</a>';
583
584	if ( !empty($show_date) ) {
585	if ( 'modified' == $show_date )
586	$time = $page->post_modified;
587	else
588	$time = $page->post_date;
589
590	$output .= " " . mysql2date($date_format, $time);
591	}
592	}
593
594	function end_el(&$output, $page, $depth) {
595	$output .= "</li>\n";
596	}
597
598	}
599
600	class Walker_PageDropdown extends Walker {
601	var $tree_type = 'page';
602	var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); //TODO: decouple this
603
604	function start_el(&$output, $page, $depth, $args) {
605	$pad = str_repeat(' ', $depth * 3);
606
607	$output .= "\t<option value=\"$page->ID\"";
608	if ( $page->ID == $args['selected'] )
609	$output .= ' selected="selected"';
610	$output .= '>';
611	$title = wp_specialchars($page->post_title);
612	$output .= "$pad$title";
613	$output .= "</option>\n";
614	}
615	}
616
617	class Walker_Category extends Walker {
618	var $tree_type = 'category';
619	var $db_fields = array ('parent' => 'parent', 'id' => 'term_id'); //TODO: decouple this
620
621	function start_lvl(&$output, $depth, $args) {
622	if ( 'list' != $args['style'] )
623	return;
624
625	$indent = str_repeat("\t", $depth);
626	$output .= "$indent<ul class='children'>\n";
627	}
628
629	function end_lvl(&$output, $depth, $args) {
630	if ( 'list' != $args['style'] )
631	return;
632
633	$indent = str_repeat("\t", $depth);
634	$output .= "$indent</ul>\n";
635	}
636
637	function start_el(&$output, $category, $depth, $args) {
638	extract($args);
639
640	$cat_name = attribute_escape( $category->name);
641	$cat_name = apply_filters( 'list_cats', $cat_name, $category );
642	$link = '<a href="' . get_category_link( $category->term_id ) . '" ';
643	if ( $use_desc_for_title == 0 \|\| empty($category->description) )
644	$link .= 'title="' . sprintf(__( 'View all posts filed under %s' ), $cat_name) . '"';
645	else
646	$link .= 'title="' . attribute_escape( apply_filters( 'category_description', $category->description, $category )) . '"';
647	$link .= '>';
648	$link .= $cat_name . '</a>';
649
650	if ( (! empty($feed_image)) \|\| (! empty($feed)) ) {
651	$link .= ' ';
652
653	if ( empty($feed_image) )
654	$link .= '(';
655
656	$link .= '<a href="' . get_category_feed_link($category->term_id, $feed_type) . '"';
657
658	if ( empty($feed) )
659	$alt = ' alt="' . sprintf(__( 'Feed for all posts filed under %s' ), $cat_name ) . '"';
660	else {
661	$title = ' title="' . $feed . '"';
662	$alt = ' alt="' . $feed . '"';
663	$name = $feed;
664	$link .= $title;
665	}
666
667	$link .= '>';
668
669	if ( empty($feed_image) )
670	$link .= $name;
671	else
672	$link .= "<img src='$feed_image'$alt$title" . ' />';
673	$link .= '</a>';
674	if ( empty($feed_image) )
675	$link .= ')';
676	}
677
678	if ( isset($show_count) && $show_count )
679	$link .= ' (' . intval($category->count) . ')';
680
681	if ( isset($show_date) && $show_date ) {
682	$link .= ' ' . gmdate('Y-m-d', $category->last_update_timestamp);
683	}
684
685	if ( isset($current_category) && $current_category )
686	$_current_category = get_category( $current_category );
687
688	if ( 'list' == $args['style'] ) {
689	$output .= "\t<li";
690	$class = 'cat-item cat-item-'.$category->term_id;
691	if ( isset($current_category) && $current_category && ($category->term_id == $current_category) )
692	$class .= ' current-cat';
693	elseif ( isset($_current_category) && $_current_category && ($category->term_id == $_current_category->parent) )
694	$class .= ' current-cat-parent';
695	$output .= ' class="'.$class.'"';
696	$output .= ">$link\n";
697	} else {
698	$output .= "\t$link<br />\n";
699	}
700	}
701
702	function end_el(&$output, $page, $depth, $args) {
703	if ( 'list' != $args['style'] )
704	return;
705
706	$output .= "</li>\n";
707	}
708
709	}
710
711	class Walker_CategoryDropdown extends Walker {
712	var $tree_type = 'category';
713	var $db_fields = array ('parent' => 'parent', 'id' => 'term_id'); //TODO: decouple this
714
715	function start_el(&$output, $category, $depth, $args) {
716	$pad = str_repeat(' ', $depth * 3);
717
718	$cat_name = apply_filters('list_cats', $category->name, $category);
719	$output .= "\t<option value=\"".$category->term_id."\"";
720	if ( $category->term_id == $args['selected'] )
721	$output .= ' selected="selected"';
722	$output .= '>';
723	$output .= $pad.$cat_name;
724	if ( $args['show_count'] )
725	$output .= '  ('. $category->count .')';
726	if ( $args['show_last_update'] ) {
727	$format = 'Y-m-d';
728	$output .= '  ' . gmdate($format, $category->last_update_timestamp);
729	}
730	$output .= "</option>\n";
731	}
732	}
733
734	class WP_Ajax_Response {
735	var $responses = array();
736
737	function WP_Ajax_Response( $args = '' ) {
738	if ( !empty($args) )
739	$this->add($args);
740	}
741
742	// a WP_Error object can be passed in 'id' or 'data'
743	function add( $args = '' ) {
744	$defaults = array(
745	'what' => 'object', 'action' => false,
746	'id' => '0', 'old_id' => false,
747	'position' => 1, // -1 = top, 1 = bottom, html ID = after, -html ID = before
748	'data' => '', 'supplemental' => array()
749	);
750
751	$r = wp_parse_args( $args, $defaults );
752	extract( $r, EXTR_SKIP );
753	$position = preg_replace( '/[^a-z0-9:_-]/i', '', $position );
754
755	if ( is_wp_error($id) ) {
756	$data = $id;
757	$id = 0;
758	}
759
760	$response = '';
761	if ( is_wp_error($data) ) {
762	foreach ( $data->get_error_codes() as $code ) {
763	$response .= "<wp_error code='$code'><![CDATA[" . $data->get_error_message($code) . "]]></wp_error>";
764	if ( !$error_data = $data->get_error_data($code) )
765	continue;
766	$class = '';
767	if ( is_object($error_data) ) {
768	$class = ' class="' . get_class($error_data) . '"';
769	$error_data = get_object_vars($error_data);
770	}
771
772	$response .= "<wp_error_data code='$code'$class>";
773
774	if ( is_scalar($error_data) ) {
775	$response .= "<![CDATA[$error_data]]>";
776	} elseif ( is_array($error_data) ) {
777	foreach ( $error_data as $k => $v )
778	$response .= "<$k><![CDATA[$v]]></$k>";
779	}
780
781	$response .= "</wp_error_data>";
782	}
783	} else {
784	$response = "<response_data><![CDATA[$data]]></response_data>";
785	}
786
787	$s = '';
788	if ( (array) $supplemental ) {
789	foreach ( $supplemental as $k => $v )
790	$s .= "<$k><![CDATA[$v]]></$k>";
791	$s = "<supplemental>$s</supplemental>";
792	}
793
794	if ( false === $action )
795	$action = $_POST['action'];
796
797	$x = '';
798	$x .= "<response action='{$action}_$id'>"; // The action attribute in the xml output is formatted like a nonce action
799	$x .= "<$what id='$id' " . ( false === $old_id ? '' : "old_id='$old_id' " ) . "position='$position'>";
800	$x .= $response;
801	$x .= $s;
802	$x .= "</$what>";
803	$x .= "</response>";
804
805	$this->responses[] = $x;
806	return $x;
807	}
808
809	function send() {
810	header('Content-Type: text/xml');
811	echo "<?xml version='1.0' standalone='yes'?><wp_ajax>";
812	foreach ( $this->responses as $response )
813	echo $response;
814	echo '</wp_ajax>';
815	die();
816	}
817	}
818
819	?>

Trac UI Preferences

Download in other formats:

Original Format

Make WordPress Core

Context Navigation

Ticket #7518: classes.php

Download in other formats: