/[cvs]/nfo/php/libs/org.netfrag.glib/utils/links.php
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Contents of /nfo/php/libs/org.netfrag.glib/utils/links.php

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Revision 1.9 - (show annotations)
Wed Jun 25 23:42:15 2003 UTC (21 years, 2 months ago) by joko
Branch: MAIN
Changes since 1.8: +18 -3 lines
trying to switch from "ap" completely to "t"

1 <?
2 /**
3 * $Id: links.php,v 1.8 2003/06/06 04:24:10 joko Exp $
4 *
5 * $Log: links.php,v $
6 * Revision 1.8 2003/06/06 04:24:10 joko
7 * test: function here
8 *
9 * Revision 1.7 2003/05/13 16:21:13 joko
10 * + function url::view_as, filter, parent
11 * added comments/docu
12 *
13 * Revision 1.6 2003/04/19 16:14:56 jonen
14 * added comment
15 *
16 * Revision 1.5 2003/04/16 16:23:31 joko
17 * + modified viewdatanode
18 * + new: function view_as
19 *
20 * Revision 1.4 2003/04/11 00:58:08 joko
21 * + link::plain
22 * + url::viewdatanode
23 *
24 * Revision 1.3 2003/04/08 22:38:43 joko
25 * NEW: 'class url' as code container for some shortcut functions
26 *
27 * Revision 1.2 2003/04/08 17:56:09 joko
28 * bugfixes
29 *
30 * Revision 1.1 2003/04/06 04:30:10 joko
31 * initial commit
32 *
33 * Revision 1.8 2003/04/04 02:00:54 joko
34 * modified rTopic
35 * new: jsAnchor
36 *
37 * Revision 1.7 2003/03/28 03:09:49 joko
38 * + function pageLink
39 *
40 * Revision 1.6 2003/02/28 04:30:45 joko
41 * + new shortcuts to build links/urls directly to topics etc.
42 *
43 * Revision 1.5 2003/02/27 18:07:49 joko
44 * + new functions: rPage, rLink
45 *
46 * Revision 1.4 2003/02/22 17:38:17 cvsmax
47 * + added array_merge of GET and POST vars
48 *
49 * Revision 1.3 2003/02/22 16:41:58 joko
50 * renamed core functions
51 *
52 * Revision 1.2 2003/02/20 22:42:10 joko
53 * + functions rAnchor and rLink
54 *
55 * Revision 1.1 2003/02/17 01:12:17 joko
56 * + initial commit
57 *
58 */
59
60 /**
61 * Beam down the required components.
62 *
63 */
64 require_once("LinkBuilder.php");
65
66 /**
67 * link class
68 *
69 * Please be aware of hackery inside of these classes.
70 *
71 *
72 * This bundles ...
73 * a) shortcuts for LinkBuilder usage (store, restore).
74 * b) shortcuts to phpHtmlLib's 'html_a' function solving
75 * the purpose to link to topics, pages, actions as well
76 * as building plain and javascript encapsulated links.
77 *
78 * @author Andreas Motl <andreas.motl@ilo.de>
79 * @package org.netfrag.glib
80 * @name link
81 *
82 */
83 class link {
84
85 // shortcut to 'LinkBuilder'
86 function store($link_vars = array()) {
87 $linkbuilder = new LinkBuilder();
88 $link_guid = $linkbuilder->save($link_vars);
89 return $link_guid;
90 }
91
92 // shortcut to 'LinkBuilder'
93 function restore($guid) {
94 $linkbuilder = new LinkBuilder();
95 return $linkbuilder->load($guid);
96 }
97
98 // shortcut to render a html-link triggering a function
99 // in the global javascript scope of the user agent
100 function js_function($js_function, $js_args = array(), $caption) {
101 $bufarr = array();
102 foreach ($js_args as $arg) {
103 array_push($bufarr, "'$arg'");
104 }
105 $bufstr = join(', ', $bufarr);
106 return html_a("javascript:$js_function($bufstr);", $caption);
107 }
108
109 function topic($topic_name, $args = array()) {
110 // 2003-0x-xx: css-class handling
111 $css_class = $args[_css_class];
112 unset($args[_css_class]);
113 $query_string = linkargs::topic($topic_name, $args);
114 return html_a($query_string, $topic_name, $css_class);
115 }
116
117 function page($caption = null, $args = array(), $identifier = null) {
118 // manipulate args, merge in non-existent, but required attributes (e.g. 'ap')
119 // FIXME: do this more generic! use array_merge for this purpose?
120 $opts = array_merge($_GET, $_POST);
121 if (!$args[ap]) { $args[ap] = $opts[ap]; }
122 $query_string = url::query($args);
123 return html_a($query_string, $caption);
124 }
125
126 function action($action_name, $args = array()) {
127
128 // new as of 2003-05-29
129 $here = array( t => $_REQUEST[t], ap => $_REQUEST[ap] );
130 $args = php::array_join_merge($here, $args);
131
132 $query_string = linkargs::action($action_name, $args);
133 return html_a($query_string, "[$action_name]");
134 }
135
136 function plain($url, $caption = '') {
137 if (!$caption) { $caption = $url; }
138 return html_a($url, $caption);
139 }
140
141 function here($caption, $args = array()) {
142
143 // 2003-06-03: css-style handling
144 $css_style = $args[_css_style];
145 unset($args[_css_style]);
146
147 $here = array( t => $_REQUEST[t] );
148 if ($_REQUEST[ap]) { $here[ap] = $_REQUEST[ap]; }
149
150 $args = php::array_join_merge($here, $args);
151 $query_string = url::query($args);
152 $link = html_a($query_string, $caption);
153
154 // 2003-06-03: css-style handling
155 if ($css_style) {
156 $link->set_style($css_style);
157 }
158
159 return $link;
160 }
161
162 function job($jobname, $type = "search") {
163 if ($type == 'search') {
164 $link = link::here( "[$jobname]", array( t => 'Jobs', q => $jobname ) );
165 } elseif ($type == 'run') {
166 $link = link::here( "[$jobname]", array( t => 'Jobs', job => $jobname, action => 'run' ) );
167 }
168 return $link;
169 }
170
171 }
172
173
174
175 /**
176 * ref class
177 *
178 * Please be aware of hackery inside of these classes.
179 *
180 * This is deprecated!!!
181 *
182 * @author Andreas Motl <andreas.motl@ilo.de>
183 * @package org.netfrag.glib
184 * @name ref
185 *
186 */
187 class ref {
188
189 function action($action, $args = array()) {
190 $args[action] = $action;
191 return rAnchor($action, $args);
192 }
193
194 function page($page_ident, $args = array()) {
195 $args[ap] = $page_ident;
196 return rAnchor($action, $args);
197 }
198
199 function link($caption, $page_ident) {
200 $args[ap] = $page_ident;
201 return rAnchor($caption, $args);
202 }
203
204 }
205
206
207
208 /**
209 * linkargs class
210 *
211 * Please be aware of hackery inside of these classes.
212 *
213 *
214 * This bundles some shortcuts to url::query( ... ).
215 * Purpose is: "Retrieval of the query argument part
216 * of links to topics, pages and actions."
217 *
218 * @todo What about shortcutting to url::plain?
219 *
220 *
221 * @author Andreas Motl <andreas.motl@ilo.de>
222 * @package org.netfrag.glib
223 * @name linkargs
224 *
225 */
226 class linkargs {
227
228 function page($page_name, $args = array()) {
229 $args[ap] = $page_name;
230 //unset($args[ap]);
231 return url::query($args);
232 }
233
234 function topic($topic_name, $args = array()) {
235 $args[t] = $topic_name;
236 //unset($args[ap]);
237 return url::query($args);
238 }
239
240 function action($action_name, $args = array()) {
241 $args[ga] = $action_name;
242 return url::query($args);
243 }
244
245 }
246
247
248 /**
249 * url class
250 *
251 * Please be aware of hackery inside of these classes.
252 *
253 *
254 * This contains the elementar primitives(?) of url building.
255 * Data enters as arrays and leaves as the encoded representation.
256 *
257 * @author Andreas Motl <andreas.motl@ilo.de>
258 * @package org.netfrag.glib
259 * @name url
260 *
261 */
262 class url {
263
264 /**
265 * url::query
266 *
267 * Accepts http url query arguments in hash style and
268 * translates them to their url representation.
269 *
270 * Example - the code:
271 * <code>
272 * $url_args = array(
273 * abc => 'def',
274 * Hello => 'World',
275 * );
276 * print url::query($url_args);
277 * </code>
278 *
279 * will output:
280 * > ?abc=def&Hello=World
281 *
282 * @todo What about urlencode / rawurlencode inside here???
283 *
284 */
285 function query($args = array()) {
286 $query_list = array();
287 foreach ($args as $key => $val) {
288 array_push($query_list, "$key=$val");
289 }
290 $query_string = join('&', $query_list);
291 if ($query_string) { $query_string = '?' . $query_string; }
292 return $query_string;
293 }
294
295
296 /**
297 * url::short
298 *
299 * This is a shortcut to link::store but adds transparency to its usage.
300 * The behavior is toggled through a constant called 'URL_ENCODE_GUID'.
301 *
302 * Example - the code:
303 * <code>
304 * $url_args = array(
305 * abc => 'def',
306 * Hello => 'World',
307 * );
308 * print url::short('http://netfrag.org/~joko/', $url_args);
309 * </code>
310 *
311 * will output: (if URL_ENCODE_GUID == 0)
312 * > http://www.mydomain.com/myhandler/?abc=def&Hello=World
313 *
314 * or: (if URL_ENCODE_GUID == 1)
315 * > http://www.mydomain.com/myhandler/?lbid=29345-95734-45245-56352-43522
316 *
317 * @todo What about having the *parameter name* declared somewhere else? 'lbid' ...
318 * 'lbid' is still hardcoded here!!! Introduce some new constant? e.g. 'URL_ENCODE_GUID_SLOT'???
319 * @todo make the *shortest generic format* possible! http://netfrag.org/~joko/?29345-95734-45245-56352-43522
320 *
321 */
322 function short($base = '', $link_vars = array()) {
323
324 // If $base isn't defined, use the current url as base.
325 // This should be retrieved from the current interpreter engine we run in.
326 // TODO: Handle more abstract for the case...
327 if (!$base) { $base = $_SERVER['PHP_SELF']; }
328
329 // Just encode url arguments if requsted ...
330 if (constants::get('URL_ENCODE_GUID')) {
331
332 // Store and encode the argument payload.
333 $link_guid = link::store($link_vars);
334
335 // Build shortened unique url with stored (registered) url's GUID.
336 // FIXME: This key should be declared by some constant
337 // from outside or passed in via third $options parameter.
338 $url = $base . "?lbid=" . $link_guid;
339
340 // ... otherwise just forward all url arguments transparently.
341 } else {
342 $url = $base . url::query($link_vars);
343 }
344
345 // There you have it.
346 return $url;
347 }
348
349
350 /**
351 * url::viewdatanode
352 *
353 * This is a shortcut to url::short with some default arguments.
354 *
355 */
356 function viewdatanode($nodename, $additional = array()) {
357
358 // REMEMBER: This is an hard coded fallback !!
359 // Normaly args passed in as 'additional' should explicit used!
360 $final = array();
361 //$defaults = array( 'ap' => 'explorer', 'ecl' => 'content' );
362 $defaults = array( 't' => 'DataBrowser', 'ecl' => 'content' );
363 $location = array( 'ecdlk' => 'rpc' );
364 $args = array( 'ecmod' => 'view', 'ect' => 'data', );
365
366 // V1 - default behavior: points to a "DataList".
367 $ident = array( 'ecat' => 'list', 'ecdid' => $nodename );
368
369 // V2 - [2003-04-22] changed behavior: points to a "DataItem" per default.
370 //$ident = array( 'ecat' => 'item', 'ecdid' => $nodename );
371
372 $final = php::array_join_merge($final, $defaults);
373 $final = php::array_join_merge($final, $location);
374 $final = php::array_join_merge($final, $args);
375 $final = php::array_join_merge($final, $ident);
376
377 $final = php::array_join_merge($final, $additional);
378
379 return url::short('', $final);
380 }
381
382 /**
383 * url::view_as
384 *
385 * This is a shortcut to url::viewdatanode.
386 *
387 */
388 function view_as($type, $additional = array()) {
389 //return url::short('', array( ecat => $type ) );
390 // HACK: (like in Data::Lift::hash::auto::TopicTree)
391 $parent_identifier = $_GET[ecdid];
392 //print htmlentities(rawurldecode($_GET[ecdf])) . "<br/>";
393 $filter_expression = rawurlencode(stripslashes($_GET[ecdf]));
394 $args = array( ecat => $type, ecdid => $parent_identifier, ecdf => $filter_expression );
395 $args = php::array_join_merge($args, $additional);
396 return url::viewdatanode($type, $args);
397 }
398
399 /**
400 * url::view_as
401 *
402 * This is a shortcut to url::viewdatanode.
403 *
404 */
405 function filter($type, $filter_expression = '') {
406 // pre-flight checks
407 if (!$type) {
408 return;
409 }
410
411 //print "filter: " . htmlentities($filter_expression) . "<br/>";
412
413 //return url::short('', array( ecat => $type ) );
414 // HACK: (like in Data::Lift::hash::auto::TopicTree)
415 //$filter_expression = $_GET[ecdf];
416 //$caption = "filter='$filter_expression'";
417 $filter_expression = rawurlencode(stripslashes($filter_expression));
418 return url::viewdatanode($type, array( ecat => $type, ecdid => $_GET[ecdid], ecdf => $filter_expression ));
419 }
420
421 /**
422 * url::view_as
423 *
424 * This is a shortcut to url::viewdatanode.
425 *
426 */
427 function parent($type) {
428 // 1. use widget type (of item|list|tree) from argument passed in
429 // 2. forward identifier slot from global input argument
430 // 3. transition value from filter slot to meta slot here
431 $filter_expression = rawurlencode(stripslashes($_GET[ecdm]));
432 return url::viewdatanode($type, array( ecat => $type, ecdid => $_GET[ecdid], ecdf => $filter_expression ));
433 }
434
435 }
436
437 ?>

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