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[LON-CAPA] /
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lonwishlist.pm
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Thu Jan 27 14:38:44 2011 UTC (13 years, 5 months ago) by
wenzelju
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- Split lonwishlist into two modules, one for displaying (handler) and one utility-module, to avoid problems with Apache::constants when calling methods from lonwishlist (e.g. need to call lonwishlist-method in lonmenu and lonmenu is used in printout.pl -> outside of mod_perl).
- Moving entries in wishlist: corrected warning shown when no entry is selected
- Some code optimizations
- Still some things do not work perfect -> in progress
1: # The LearningOnline Network with CAPA
2: # Utility-routines for wishlist
3: #
4: # $Id: lonwishlist.pm,v 1.9 2011/01/27 14:38:44 wenzelju Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: =pod
30:
31: =head1 NAME
32:
33: Apache::lonwishlist - Wishlist-Module
34:
35: =head1 SYNOPSIS
36:
37: The wishlist offers a possibility to store links to resources from the resource-pool and external websites in a hierarchical list.
38: It is only available for user with access to the resource-pool. The list can be structured by folders.
39:
40: The wishlist-module uses the CPAN-module "Tree" for easily handling the directory-structure of the wishlist. Each node in the tree has an index to be referenced by.
41:
42: =back
43:
44: =cut
45:
46: package Apache::lonwishlist;
47:
48: use strict;
49: use Apache::lonnet;
50: use Apache::loncommon();
51: use Apache::lonhtmlcommon;
52: use Apache::lonlocal;
53: use LONCAPA;
54: use Tree;
55:
56:
57: # Global variables
58: my $root;
59: my @childrenRt;
60: my %TreeHash;
61: my %TreeToHash;
62: my @allFolders;
63: my @allNodes;
64: my $indentConst = 20;
65: my $foldersOption;
66:
67: =pod
68:
69: =head2 Routines for getting and putting the wishlist data from and accordingly to users data.
70:
71: =over 4
72:
73: =item * &getWishlist()
74:
75: Get the wishlist-data via lonnet::getkeys() and lonnet::get() and returns the got data in a hash.
76:
77:
78: =item * &putWishlist(wishlist)
79:
80: Parameter is a reference to a hash. Puts the wishlist-data contained in the given hash via lonnet::put() to user-data.
81:
82:
83: =item * &deleteWishlist()
84:
85: Deletes all entries from the user-data for wishlist. Do this before putting in new data.
86:
87:
88: =back
89:
90: =cut
91:
92:
93: # Read wishlist from user-data
94: sub getWishlist {
95: my @keys = &Apache::lonnet::getkeys('wishlist');
96: my %wishlist = &Apache::lonnet::get('wishlist',\@keys);
97: foreach my $i ( keys %wishlist) {
98: #File not found. This appears at the first time using the wishlist
99: #Create file and put 'root' into it
100: if ($i =~m/^error:No such file/) {
101: &Apache::lonnet::logthis($i.'! Create file by putting in the "root" of the directory tree.');
102: &Apache::lonnet::put('wishlist', {'root' => ''});
103: my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>';
104: &Apache::lonnet::put('wishlist', {'folders' => $options});
105: @keys = &Apache::lonnet::getkeys('wishlist');
106: %wishlist = &Apache::lonnet::get('wishlist',\@keys);
107: }
108: elsif ($i =~ /^(con_lost|error|no_such_host)/i) {
109: &Apache::lonnet::logthis('ERROR while attempting to get wishlist: '.$i);
110: return 'error';
111: }
112: }
113:
114: # if we got no keys in hash returned by get(), return error.
115: # wishlist will not be loaded, instead the user will be asked to try again later
116: if ((keys %wishlist) == 0) {
117: &Apache::lonnet::logthis('ERROR while attempting to get wishlist: no keys retrieved!');
118: return 'error';
119: }
120:
121: return %wishlist;
122: }
123:
124:
125: # Write wishlist to user-data
126: sub putWishlist {
127: my $wishlist = shift;
128: &Apache::lonnet::put('wishlist',$wishlist);
129: }
130:
131:
132: # Removes all existing entrys for wishlist in user-data
133: sub deleteWishlist {
134: my @wishlistkeys = &Apache::lonnet::getkeys('wishlist');
135: my %wishlist = &Apache::lonnet::del('wishlist',\@wishlistkeys);
136: }
137:
138:
139: =pod
140:
141: =head2 Routines for changing the directory struture of the wishlist.
142:
143: =over 4
144:
145: =item * &newEntry(title, path, note)
146:
147: Creates a new entry in the wishlist containing the given informations. Additionally saves the date of creation in the entry.
148:
149:
150: =item * &deleteEntries(marked)
151:
152: Parameter is a reference to an array containing the indices of all nodes that should be removed from the tree.
153:
154:
155: =item * &sortEntries(indexNode, at)
156:
157: Changes the position of a node given by indexNode within its siblings. New position is given by at.
158:
159:
160: =item * &moveEntries(indexNodesToMove, indexParent)
161:
162: Parameter is a reference to an array containing the indices of all nodes that should be moved. indexParent specifies the node that will become the new Parent for these nodes.
163:
164:
165: =item * &setNewTitle(nodeindex, newTitle)
166:
167: Sets the title for the node given by nodeindex to newTitle.
168:
169:
170: =item * &setNewPath(nodeindex, newPath)
171:
172: Sets the path for the node given by nodeindex to newPath.
173:
174:
175: =item * &setNewNote(nodeindex, newNote)
176:
177: Sets the note for the node given by nodeindex to newNote.
178:
179:
180: =item * &saveChanges()
181:
182: Prepares the wishlist-hash to save it via &putWishlist(wishlist).
183:
184:
185: =back
186:
187: =cut
188:
189:
190: # Create a new entry
191: sub newEntry() {
192: my ($rootgiven, $title, $path, $note) = @_;
193:
194: $root = $rootgiven;
195: @childrenRt = $root->children();
196:
197: my $date = gmtime();
198: # Create Entry-Object
199: my $entry = Entry->new(title => $title, path => $path, note => $note, date => $date);
200: # Create Tree-Object, this correspones a node in the wishlist-tree
201: my $tree = Tree->new($entry);
202: # Add this node to wishlist-tree
203: my $folderIndex = $env{'form.folders'};
204: if ($folderIndex ne '') {
205: @allFolders = ();
206: &getFoldersToArray(\@childrenRt);
207: my $folderToInsertOn = &Apache::Tree::getNodeByIndex($folderIndex,\@allFolders);
208: $folderToInsertOn->add_child($tree);
209: }
210: else {
211: $root->add_child($tree);
212: }
213: return &saveChanges();
214: }
215:
216:
217: # Delete entries
218: sub deleteEntries {
219: my $rootgiven = shift;
220: my $marked = shift;
221:
222: $root = $rootgiven;
223: @childrenRt = $root->children();
224:
225: &getNodesToArray(\@childrenRt);
226: foreach my $m (@$marked) {
227: my $found = &Apache::Tree::getNodeByIndex($m, \@allNodes);
228: # be sure, that entry exists (may have been deleted before, e.g. in an other browsertab)
229: if (defined $found) {
230: &Apache::Tree::removeNode($found);
231: }
232: }
233: @allNodes = ();
234: return &saveChanges();
235: }
236:
237:
238: # Sort entries
239: sub sortEntries {
240: my $rootgiven = shift;
241: my $indexNode = shift;
242: my $at = shift;
243:
244: $root = $rootgiven;
245: @childrenRt = $root->children();
246:
247: &getNodesToArray(\@childrenRt);
248: my $foundNode = &Apache::Tree::getNodeByIndex($indexNode, \@allNodes);
249:
250: &Apache::Tree::moveNode($foundNode,$at,undef);
251: @allNodes = ();
252: return &saveChanges();
253: }
254:
255:
256: # Move entries
257: sub moveEntries {
258: my $rootgiven = shift;
259: my $indexNodesToMove = shift;
260: my $indexParent = shift;
261: my @nodesToMove = ();
262:
263: $root = $rootgiven;
264: @childrenRt = $root->children();
265:
266: # get all nodes that should be moved
267: &getNodesToArray(\@childrenRt);
268: foreach my $index (@$indexNodesToMove) {
269: my $foundNode = &Apache::Tree::getNodeByIndex($index, \@allNodes);
270: push(@nodesToMove, $foundNode);
271: }
272:
273: foreach my $node (@nodesToMove) {
274: my $foundParent;
275: my $parentIsIn = 0;
276: foreach my $n (@nodesToMove) {
277: if ($node->parent()->value() ne "root") {
278: if ($node->parent()->value()->nindex() == $n->value()->nindex()) {
279: $parentIsIn = 1;
280: }
281: }
282: }
283: if (!$parentIsIn) {
284: if ($indexParent ne "root") {
285: $foundParent = &Apache::Tree::getNodeByIndex($indexParent, \@allNodes);
286: &Apache::Tree::moveNode($node,undef,$foundParent);
287: }
288: else {
289: &Apache::Tree::moveNode($node,undef,$root);
290: }
291: }
292: }
293: @allNodes = ();
294: return &saveChanges();
295: }
296:
297:
298: # Set a new title for an entry
299: sub setNewTitle {
300: my ($rootgiven, $nodeindex, $newTitle) = @_;
301:
302: $root = $rootgiven;
303: @childrenRt = $root->children();
304:
305: &getNodesToArray(\@childrenRt);
306: my $found = &Apache::Tree::getNodeByIndex($nodeindex, \@allNodes);
307: $found->value()->title($newTitle);
308: @allNodes = ();
309: return &saveChanges();
310: }
311:
312:
313: # Set a new path for an entry
314: sub setNewPath {
315: my ($rootgiven, $nodeindex, $newPath) = @_;
316:
317: $root = $rootgiven;
318: @childrenRt = $root->children();
319:
320: &getNodesToArray(\@childrenRt);
321: my $found = &Apache::Tree::getNodeByIndex($nodeindex, \@allNodes);
322: if ($found->value()->path()) {
323: $found->value()->path($newPath);
324: return &saveChanges();
325: }
326: @allNodes = ();
327: return 0;
328: }
329:
330:
331: # Set a new note for an entry
332: sub setNewNote {
333: my ($rootgiven, $nodeindex, $newNote) = @_;
334:
335: $root = $rootgiven;
336: @childrenRt = $root->children();
337:
338: &getNodesToArray(\@childrenRt);
339: my $found = &Apache::Tree::getNodeByIndex($nodeindex, \@allNodes);
340: $found->value()->note($newNote);
341: @allNodes = ();
342: return &saveChanges();
343: }
344:
345:
346: # Save all changes
347: sub saveChanges {
348: @childrenRt = $root->children();
349: &Apache::Tree::TreeIndex(\@childrenRt);
350: &Apache::Tree::setCountZero();
351: &Apache::Tree::RootToHash(\@childrenRt);
352: &Apache::Tree::TreeToHash(\@childrenRt);
353: &deleteWishlist();
354: &putWishlist(\%TreeToHash);
355: return $root;
356:
357: }
358:
359:
360: =pod
361:
362: =head2 Routines for handling the directory structure
363:
364: =over 4
365:
366: =item * &getFoldersForOption(nodes)
367:
368: Return the titles for all exiting folders in an option-tag, used to offer the users a possibility to create a new link or folder in an existing folder.
369: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
370:
371:
372: =item * &getFoldersToArray(children)
373:
374: Puts all nodes that represent folders in the wishlist into an array.
375: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
376:
377:
378: =item * &getNodesToArray(children)
379:
380: Puts all existing nodes into an array (apart from the root node, because this one does not represent an entry in the wishlist).
381: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
382:
383:
384: =back
385:
386: =cut
387:
388:
389: # Return the names for all exiting folders in option-tags, so
390: # a new link or a new folder can be created in an existing folder
391: my $indent = 0;
392: sub getFoldersForOption {
393: my $nodes = shift;
394:
395: foreach my $n (@$nodes) {
396: if ($n->value()->path() eq '') {
397: $foldersOption .= '<option value="'.$n->value()->nindex().'" style="margin-left:'.$indent.'px">'.
398: $n->value()->title().
399: '</option>';
400:
401: my @children = $n->children();
402: if ($#children >=0) {
403: $indent += 10;
404: &getFoldersForOption(\@children);
405: $indent -= 10;
406: }
407: }
408: }
409: }
410:
411:
412: # Put all folder-nodes to an array
413: sub getFoldersToArray {
414: my $children = shift;
415: foreach my $c (@$children) {
416: if ($c->value()->path() eq '') {
417: push(@allFolders,$c);
418: }
419: my @newchildren = $c->children();
420: if ($#newchildren >= 0) {
421: &getFoldersToArray(\@newchildren);
422: }
423: }
424: }
425:
426:
427: # Put all nodes to an array
428: sub getNodesToArray {
429: my $children = shift;
430: foreach my $c (@$children) {
431: push(@allNodes,$c);
432: my @newchildren = $c->children();
433: if ($#newchildren >= 0) {
434: &getNodesToArray(\@newchildren);
435: }
436: }
437: }
438:
439:
440: =pod
441:
442: =head2 Routines for the user-interface of the wishlist
443:
444: =over 4
445:
446: =item * &JSforWishlist()
447:
448: Returns JavaScript-functions needed for wishlist actions like open and close folders.
449:
450:
451: =item * &wishlistView(nodes)
452:
453: Returns the table-HTML-markup for the wishlist in mode "view".
454: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
455:
456:
457: =item * &wishlistEdit(nodes)
458:
459: Returns the table-HTML-markup for the wishlist in mode "edit".
460: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
461:
462:
463: =item * &wishlistMove(nodes, marked)
464:
465: Returns the table-HTML-markup for the wishlist in mode "move". Highlights all entry "selected to move" contained in marked (reference to array).
466: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
467:
468:
469: =item * &wishlistImport(nodes)
470:
471: Returns the table-HTML-markup for the wishlist in mode "import".
472: Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
473:
474:
475: =item * &makePage(mode, marked)
476:
477: Returns the HTML-markup for the whole wishlist depending on mode. If mode is "move" we need the marked entries to be highlighted a "selected to move".
478: Calls &wishlistView(nodes), &wishlistEdit(nodes) or &wishlistMove(nodes, marked).
479:
480:
481: =item * &makePageSet()
482:
483: Returns the HTML-Markup for the page shown when a link was set by using the icon when viewing a resource.
484:
485:
486: =item * &makePageImport()
487:
488: Returns the HTML-Markup for the page shown when links should be imported into courses.
489:
490:
491: =item * &makeErrorPage ()
492:
493: Returns the HTML-Markup for an error-page shown if the wishlist could not be loaded.
494:
495:
496: =back
497:
498: =cut
499:
500:
501: # Return a script-tag containing Javascript-function
502: # needed for wishlist actions like 'new link' ect.
503: sub JSforWishlist {
504: my $startPagePopup = &Apache::loncommon::start_page('Wishlist',undef,
505: {'only_body' => 1,
506: 'js_ready' => 1,
507: 'bgcolor' => '#FFFFFF',});
508: my $endPagePopup = &Apache::loncommon::end_page({'js_ready' => 1});
509:
510: @allFolders = ();
511: &getFoldersToArray(\@childrenRt);
512: &getFoldersForOption(\@childrenRt);
513:
514: # texthash
515: my %lt = &Apache::lonlocal::texthash(
516: 'nl' => 'New Link',
517: 'nf' => 'New Folder',
518: 'lt' => 'Link Title',
519: 'ft' => 'Folder Title',
520: 'pa' => 'Path',
521: 'nt' => 'Note',
522: 'si' => 'Save in',
523: 'cl' => 'Cancel');
524:
525:
526: my $inPageNewLink = '<h1>'.$lt{'nl'}.'</h1>'.
527: '<form method="post" name="newlink" action="/adm/wishlist" target="wishlist" '.
528: 'onsubmit="return newlinksubmit();" >'.
529: &Apache::lonhtmlcommon::start_pick_box().
530: &Apache::lonhtmlcommon::row_title($lt{'lt'}).
531: '<input type="text" name="title" size="45" value="" />'.
532: &Apache::lonhtmlcommon::row_closure().
533: &Apache::lonhtmlcommon::row_title($lt{'pa'}).
534: '<input type="text" name="path" size="45" value="" />'.
535: &Apache::lonhtmlcommon::row_closure().
536: &Apache::lonhtmlcommon::row_title($lt{'nt'}).
537: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea>'.
538: &Apache::lonhtmlcommon::row_closure(1).
539: &Apache::lonhtmlcommon::end_pick_box().
540: '<br/><br/>'.
541: '<input type="submit" value="'.$lt{'si'}.'" />'.
542: '<select name="folders">'.
543: '<option value="" selected="selected">('.&mt('Top level').')</option>'.
544: $foldersOption.
545: '</select>'.
546: '<input type="button" value="'.$lt{'cl'}.'" onclick="javascript:window.close();" />'.
547: '</form>';
548:
549: my $inPageNewFolder = '<h1>'.$lt{'nf'}.'</h1>'.
550: '<form method="post" name="newfolder" action="/adm/wishlist" target="wishlist" '.
551: 'onsubmit="return newfoldersubmit();" >'.
552: &Apache::lonhtmlcommon::start_pick_box().
553: &Apache::lonhtmlcommon::row_title($lt{'ft'}).
554: '<input type="text" name="title" size="45" value="" /><br />'.
555: &Apache::lonhtmlcommon::row_closure().
556: &Apache::lonhtmlcommon::row_title($lt{'nt'}).
557: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea><br />'.
558: &Apache::lonhtmlcommon::row_closure(1).
559: &Apache::lonhtmlcommon::end_pick_box().
560: '<br/><br/>'.
561: '<input type="submit" value="'.$lt{'si'}.'" />'.
562: '<select name="folders">'.
563: '<option value="" selected="selected">('.&mt('Top level').')</option>'.
564: $foldersOption.
565: '</select>'.
566: '<input type="button" value="'.$lt{'cl'}.'" onclick="javascript:window.close();" />'.
567: '</form>';
568:
569: # Remove all \n for inserting on javascript document.write
570: $inPageNewLink =~ s/\n//g;
571: $inPageNewFolder =~ s/\n//g;
572:
573: # it is checked, wether a path links to a LON-CAPA-resource or an external website. links to course-contents are not allowed
574: # because they probably will return a kind of 'no access' (unless the user is already in the course, the path links to).
575: # also importing these kind of links into a course does not make much sense.
576: # to find out if a path (not starting with /res/...) links to course-contents, the same filter as in lonwrapper is used,
577: # that means that it is checked wether a path contains .problem, .quiz, .exam etc.
578: # this is good for most cases but crashes as soon as a real external website contains one of this pattern in its URL.
579: # so maybe there's a better way to find out wether a given URL belongs to a LON-CAPA-server or not ...?
580: my $warningLinkNotAllowed1 = &mt('You can only insert links to LON-CAPA resources from the resource-pool '.
581: 'or to external websites. Paths to LON-CAPA resources must be of the form /res/dom/usr... . '.
582: 'Paths to external websites must contain the network protocol (e.g. http://...).');
583: my $warningLinkNotAllowed2 = &mt('The following link is not allowed: ');
584: my $warningLink = &mt('You must insert a title and a path!');
585: my $warningFolder = &mt('You must insert a title!');
586: my $warningDelete = &mt('Are you sure you want to delete the selected entries? Deleting a folder also deletes all entries within this folder!');
587: my $warningSave = &mt('You have unsaved changes. You can either save these changes now by clicking "ok" or click "cancel" if you do not want to save your changes.');
588: my $warningMoveS = &mt('You must select at minimum one entry to move!');
589: my $warningMoveD = &mt('You must select a destination folder!');
590: $foldersOption = '';
591:
592: my $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
593: function newLink() {
594: newlinkWin=window.open('','newlinkWin','width=580,height=320,scrollbars=yes');
595: newlinkWin.document.write('$startPagePopup'
596: +'<script type="text\/javascript">'
597: +'function newlinksubmit(){'
598: +'var path = document.getElementsByName("path")[0].value;'
599: +'var title = document.getElementsByName("title")[0].value;'
600: +'if (!path || !title) {'
601: +'alert("$warningLink");'
602: +'return false;}'
603: +'var linkOK = (path.match(/^http:(\\\\/\\\\/)/) || path.match(/^https:(\\\\/\\\\/)/))'
604: +'&& !(path.match(/\\.problem/) || path.match(/\\.exam/)'
605: +'|| path.match(/\\.quiz/) || path.match(/\\.assess/)'
606: +'|| path.match(/\\.survey/) || path.match(/\\.form/)'
607: +'|| path.match(/\\.library/) || path.match(/\\.page/)'
608: +'|| path.match(/\\.sequence/));'
609: +'if (!path.match(/^(\\\\/res\\\\/)/) && !linkOK) {'
610: +'alert("$warningLinkNotAllowed1");'
611: +'return false;}'
612: +'else {'
613: +'window.close();'
614: +'return true;}}'
615: +'<\/scr'+'ipt>'
616: +'$inPageNewLink'
617: +'$endPagePopup');
618: newlinkWin.document.close();
619: }
620:
621: function newFolder() {
622: newfolderWin=window.open('','newfolderWin','width=580,height=270, scrollbars=yes');
623: newfolderWin.document.write('$startPagePopup'
624: +'<script type="text\/javascript">'
625: +'function newfoldersubmit(){'
626: +'var title = document.getElementsByName("title")[0].value;'
627: +'if (!title) {'
628: +'alert("$warningFolder");'
629: +'return false;}'
630: +'else {'
631: +'window.close();'
632: +'return true;}}'
633: +'<\/scr'+'ipt>'
634: +'$inPageNewFolder'
635: +'$endPagePopup');
636: newfolderWin.document.close();
637: }
638:
639: function setFormAction(action,mode) {
640: var r = true;
641: setAction('');
642: if (action == 'delete') {
643: r = confirm("$warningDelete");
644: setAction('delete');
645: }
646: else if (action == 'save') {
647: var d = getDifferences();
648: if (d) {
649: if (!confirm('$warningSave')) {
650: setAction('noSave');
651: r = true;
652: }
653: else {
654: r = linksOK();
655: }
656: }
657: }
658: else if (action == 'saveOK') {
659: r = linksOK();
660: }
661: else if (action == 'move') {
662: r = selectDestinationFolder(mode);
663: }
664: document.getElementsByName('list')[0].setAttribute("action", "/adm/wishlist?mode="+mode);
665: if (r) {
666: document.getElementsByName('list')[0].submit();
667: }
668: }
669:
670: function setAction(action) {
671: document.getElementById('action').value = action;
672: }
673:
674: function getDifferences() {
675: var newtitles = document.getElementsByName('newtitle');
676: var i = 0;
677: for (i=0;i<newtitles.length;i++) {
678: var newt = newtitles[i].value;
679: var oldt = newtitles[i].alt;
680: if (newt != oldt) {
681: return true;
682: }
683: }
684: var newpath = document.getElementsByName('newpath');
685: var i = 0;
686: for (i=0;i<newpath.length;i++) {
687: var newp = newpath[i].value;
688: var oldp = newpath[i].alt;
689: if (newp != oldp) {
690: return true;
691: }
692: }
693: var newnote = document.getElementsByName('newnote');
694: var i = 0;
695: for (i=0;i<newnote.length;i++) {
696: var newn = newnote[i].value;
697: var oldn = newnote[i].innerHTML;
698: if (newn != oldn) {
699: return true;
700: }
701: }
702: return false;
703: }
704:
705: function linksOK() {
706: var newpath = document.getElementsByName('newpath');
707: var i = 0;
708: for (i=0;i<newpath.length;i++) {
709: var path = newpath[i].value;
710: var linkOK = (path.match(/^http:\\/\\//) || path.match(/^https:\\/\\//))
711: && !(path.match(/\\.problem/) || path.match(/\\.exam/)
712: || path.match(/\\.quiz/) || path.match(/\\.assess/)
713: || path.match(/\\.survey/) || path.match(/\\.form/)
714: || path.match(/\\.library/) || path.match(/\\.page/)
715: || path.match(/\\.sequence/));
716: if (!path.match(/^(\\/res\\/)/) && !linkOK) {
717: alert("$warningLinkNotAllowed1 $warningLinkNotAllowed2"+path);
718: return false;
719: }
720: }
721: return true;
722: }
723:
724: function onLoadAction(mode) {
725: window.name = 'wishlist';
726: if (mode == "edit") {
727: var deepestRows = getDeepestRows();
728: setDisplaySelect(deepestRows, '');
729: }
730: }
731:
732: function folderAction(rowid) {
733: var row = document.getElementById(rowid);
734: var indent = getIndent(row);
735: var displ;
736: var status;
737: if (getImage(row) == 'closed') {
738: displ = '';
739: status = 'open';
740: }
741: else {
742: displ = 'LC_hidden';
743: status = 'closed';
744: }
745: setImage(row,status);
746: if (getNextRow(row) != null) {
747: var nextIndent = getIndent(getNextRow(row));
748: row = getNextRow(row);
749: while (nextIndent > indent) {
750: if (displ == '') {
751: row.className = (row.className).replace('LC_hidden','');
752: }
753: else if (displ != '' && !((row.className).match('LC_hidden'))) {
754: var oldClass = row.className;
755: row.className = oldClass+' LC_hidden';
756: setDisplayNote(row.id.replace('row','note'),'LC_hidden');
757: }
758: if (status == 'open' && getImage(row).match('closed')) {
759: row = getNextRowWithIndent(row, getIndent(row));
760: }
761: else {
762: row = getNextRow(row);
763: }
764: if (row != null) {
765: nextIndent = getIndent(row);
766: }
767: else {
768: nextIndent = indent;
769: }
770: }
771: }
772: setClasses();
773: var newtitles = document.getElementsByName('newtitle');
774: if (newtitles.length>0) {
775: var deepestRows = getDeepestRows();
776: var otherRows = getOtherRows(deepestRows);
777: setDisplaySelect(deepestRows,'');
778: setDisplaySelect(otherRows,'LC_hidden');
779: }
780: }
781:
782: function selectAction(rowid) {
783: var row = document.getElementById(rowid);
784: var indent = getIndent(row);
785: var checked = getChecked(row);
786: var previousFolderRows = new Array();
787: if (indent != 0) {
788: previousFolderRows = getPreviousFolderRows(row);
789: }
790: if (getNextRow(row) != null) {
791: var nextIndent = getIndent(getNextRow(row));
792: row = getNextRow(row);
793: while (nextIndent > indent) {
794: setChecked(row,checked);
795: if (status == 'open' && getImage(row).match('closed')) {
796: row = getNextRowWithIndent(row, getIndent(row));
797: }
798: else {
799: row = getNextRow(row);
800: }
801: if (row != null) {
802: nextIndent = getIndent(row);
803: }
804: else {
805: nextIndent = indent;
806: }
807: }
808: }
809: if (!checked) {
810: var i = 0;
811: for (i=0;i<previousFolderRows.length;i++) {
812: setChecked(previousFolderRows[i], false);
813: }
814: }
815: }
816:
817: function getNextNote(row) {
818: var rowId = row.id;
819: var nextRowId = parseInt(rowId.substr(3,rowId.length))+1;
820: nextRowId = "note"+nextRowId;
821: var nextRow = document.getElementById(nextRowId);
822: return nextRow;
823: }
824:
825: function getNextRow(row) {
826: var rowId = row.id;
827: var nextRowId = parseInt(rowId.substr(3,rowId.length))+1;
828: nextRowId = "row"+nextRowId;
829: var nextRow = document.getElementById(nextRowId);
830: return nextRow;
831: }
832:
833: function getPreviousRow(row) {
834: var rowId = row.id;
835: var previousRowId = parseInt(rowId.substr(3,rowId.length))-1;
836: previousRowId = "row"+previousRowId;
837: var previousRow =document.getElementById(previousRowId);
838: return previousRow;
839: }
840:
841: function getIndent(row) {
842: var childPADD = document.getElementById(row.id.replace('row','padd'));
843: indent = childPADD.style.paddingLeft;
844: indent = parseInt(indent.substr(0,(indent.length-2)));
845:
846: if (getImage(row).match('link')) {
847: indent -= $indentConst;
848: }
849: return indent;
850: }
851:
852: function getNextRowWithIndent(row, indent) {
853: var nextRow = getNextRow(row);
854: if (nextRow != null) {
855: var nextIndent = getIndent(nextRow);
856: while (nextIndent >= indent) {
857: if (nextIndent == indent) {
858: return nextRow;
859: }
860: nextRow = getNextRow(nextRow);
861: if (nextRow == null) {
862: return null;
863: }
864: nextIndent = getIndent(nextRow);
865: }
866: }
867: return nextRow;
868: }
869:
870: function getImage(row) {
871: var childIMG = document.getElementById(row.id.replace('row','img'));
872: if ((childIMG.src).match('closed')) {
873: return 'closed';
874: }
875: else if ((childIMG.src).match('open')) {
876: return 'open;'
877: }
878: else {
879: return 'link';
880: }
881: }
882:
883: function setImage(row, status) {
884: var childIMG = document.getElementById(row.id.replace('row','img'));
885: var childIMGFolder = document.getElementById(row.id.replace('row','imgFolder'));
886: childIMG.src = "/adm/lonIcons/arrow."+status+".gif";
887: childIMGFolder.src="/adm/lonIcons/navmap.folder."+status+".gif";
888: }
889:
890: function getChecked(row) {
891: var childCHECK = document.getElementById(row.id.replace('row','check'));
892: var checked = childCHECK.checked;
893: return checked;
894: }
895:
896: function setChecked(row,checked) {
897: var childCHECK = document.getElementById(row.id.replace('row','check'));
898: childCHECK.checked = checked;
899: }
900:
901: function getPreviousFolderRows(row) {
902: var previousRow = getPreviousRow(row);
903: var indent = getIndent(previousRow);
904: var kindOfEntry = getImage(previousRow);
905: var rows = new Array();
906: if (kindOfEntry != 'link') {
907: rows.push(previousRow);
908: }
909:
910: while (indent >0) {
911: previousRow = getPreviousRow(previousRow);
912: if (previousRow != null) {
913: indent = getIndent(previousRow);
914: kindOfEntry = getImage(previousRow);
915: if (kindOfEntry != 'link') {
916: rows.push(previousRow);
917: }
918: }
919: else {
920: indent = 0;
921: }
922: }
923: return rows;
924: }
925:
926: function getDeepestRows() {
927: var row = document.getElementById('row0');
928: var firstRow = row;
929: var indent = getIndent(row);
930: var maxIndent = indent;
931: while (getNextRow(row) != null) {
932: row = getNextRow(row);
933: indent = getIndent(row);
934: if (indent>maxIndent && !((row.className).match('LC_hidden'))) {
935: maxIndent = indent;
936: }
937: }
938: var deepestRows = new Array();
939: row = firstRow;
940: var rowIndent;
941: while (getNextRow(row) != null) {
942: rowIndent = getIndent(row);
943: if (rowIndent == maxIndent) {
944: deepestRows.push(row);
945: }
946: row = getNextRow(row);
947: }
948: rowIndent = getIndent(row);
949: if (rowIndent == maxIndent) {
950: deepestRows.push(row);
951: }
952: return deepestRows;
953: }
954:
955: function getOtherRows(deepestRows) {
956: var row = document.getElementById('row0');
957: var otherRows = new Array();
958: var isIn = false;
959: while (getNextRow(row) != null) {
960: var i = 0;
961: for (i=0; i < deepestRows.length; i++) {
962: if (row.id == deepestRows[i].id) {
963: isIn = true;
964: }
965: }
966: if (!isIn) {
967: otherRows.push(row);
968: }
969: row = getNextRow(row);
970: isIn = false;
971: }
972: for (i=0; i < deepestRows.length; i++) {
973: if (row.id == deepestRows[i].id) {
974: isIn = true;
975: }
976: }
977: if (!isIn) {
978: otherRows.push(row);
979: }
980: return otherRows;
981: }
982:
983: function setDisplaySelect(deepestRows, displ) {
984: var i = 0;
985: for (i = 0; i < deepestRows.length; i++) {
986: var row = deepestRows[i];
987: var childSEL = document.getElementById(row.id.replace('row','sel'));
988: childSEL.className = displ;
989: }
990: }
991:
992: function submitSelect() {
993: var list = document.getElementsByName('list')[0];
994: list.setAttribute("action","/adm/wishlist?mode=edit");
995: list.submit();
996: }
997:
998: function setDisplayNote(rowid, displ) {
999: var row = document.getElementById(rowid);
1000: if (!displ) {
1001: if ((row.className).match('LC_hidden')) {
1002: row.className = (row.className).replace('LC_hidden','');
1003: }
1004: else {
1005: var oldClass = row.className;
1006: row.className = oldClass+' LC_hidden';
1007: }
1008: }
1009: else {
1010: if (displ == '') {
1011: row.className = (row.className).replace('LC_hidden','');
1012: }
1013: else if (displ != '' && !((row.className).match('LC_hidden'))) {
1014: var oldClass = row.className;
1015: row.className = oldClass+' LC_hidden';
1016: }
1017: }
1018: var noteText = document.getElementById(rowid.replace('note','noteText'));
1019: var noteImg = document.getElementById(rowid.replace('note','noteImg'));
1020: if (noteText.value) {
1021: noteImg.src = "/res/adm/pages/anot2.png";
1022: }
1023: else {
1024: noteImg.src = "/res/adm/pages/anot.png";
1025: }
1026:
1027: }
1028:
1029: function setClasses() {
1030: var row = document.getElementById("row0");
1031: var note = document.getElementById("note0");
1032: var LC_class = 0;
1033: if (getNextRow(row) != null) {
1034: while (getNextRow(row) != null) {
1035: if (!(row.className).match('LC_hidden')) {
1036: note.className = (note.className).replace('LC_even_row','');
1037: note.className = (note.className).replace('LC_odd_row','');
1038: if (LC_class) {
1039: row.className = 'LC_even_row';
1040: note.className = 'LC_even_row'+note.className;
1041: }
1042: else {
1043: row.className = 'LC_odd_row';
1044: note.className = 'LC_odd_row'+note.className;;
1045: }
1046: LC_class = !LC_class;
1047: }
1048: note = getNextNote(row);
1049: row = getNextRow(row);
1050: }
1051: }
1052: if (!(row.className).match('LC_hidden')) {
1053: note.className = (note.className).replace('LC_even_row','');
1054: note.className = (note.className).replace('LC_odd_row','');
1055: if (LC_class) {
1056: row.className = 'LC_even_row';
1057: note.className = 'LC_even_row'+note.className;
1058: }
1059: else {
1060: row.className = 'LC_odd_row';
1061: note.className = 'LC_odd_row'+note.className;
1062: }
1063: }
1064: }
1065:
1066: function selectDestinationFolder(mode) {
1067: var mark = document.getElementsByName('mark');
1068: var i = 0;
1069: for (i = 0; i < mark.length; i++) {
1070: if (mark[i].checked) {
1071: document.getElementsByName('list')[0].submit();
1072: return true;
1073: }
1074: }
1075: if (mode == 'move') {
1076: alert('$warningMoveS');
1077: }
1078: else {
1079: alert('$warningMoveD');
1080: }
1081: return false;
1082: }
1083:
1084: function preview(url) {
1085: var newWin;
1086: if (!(url.match(/^http:\\/\\//) || url.match(/^https:\\/\\//))) {
1087: newWin = window.open(url+'?inhibitmenu=yes','preview','width=560,height=350,scrollbars=yes');
1088: }
1089: else {
1090: newWin = window.open(url,'preview','width=560,height=350,scrollbars=yes');
1091: }
1092: newWin.focus();
1093: }
1094:
1095: function checkAll() {
1096: var checkboxes = document.getElementsByName('check');
1097: for (var i = 0; i < checkboxes.length; i++) {
1098: checkboxes[i].checked = "checked";
1099: }
1100: }
1101:
1102: function uncheckAll() {
1103: var checkboxes = document.getElementsByName('check');
1104: for (var i = 0; i < checkboxes.length; i++) {
1105: checkboxes[i].checked = "";
1106: }
1107: }
1108:
1109: JAVASCRIPT
1110: return $js;
1111: }
1112:
1113: sub JSforImport{
1114: my $rat = shift;
1115:
1116: my $js;
1117: if ($rat eq 'simple' || $rat eq '') {
1118: $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
1119: function finish_import() {
1120: opener.document.forms.simpleedit.importdetail.value='';
1121: for (var num = 0; num < document.forms.groupsort.fnum.value; num++) {
1122: if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
1123: opener.document.forms.simpleedit.importdetail.value+='&'+
1124: eval("document.forms.groupsort.title"+num+".value")+'='+
1125: eval("document.forms.groupsort.filelink"+num+".value")+'='+
1126: eval("document.forms.groupsort.id"+num+".value");
1127: }
1128: }
1129: opener.document.forms.simpleedit.submit();
1130: self.close();
1131: }
1132: JAVASCRIPT
1133: }
1134: else {
1135: $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
1136: function finish_import() {
1137: var linkflag=false;
1138: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
1139: if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
1140: insertRowInLastRow();
1141: placeResourceInLastRow(
1142: eval("document.forms.groupsort.title"+num+".value"),
1143: eval("document.forms.groupsort.filelink"+num+".value"),
1144: eval("document.forms.groupsort.id"+num+".value"),
1145: linkflag
1146: );
1147: linkflag=true;
1148: }
1149: }
1150: opener.editmode=0;
1151: opener.notclear=0;
1152: opener.linkmode=0;
1153: opener.draw();
1154: self.close();
1155: }
1156:
1157: function insertRowInLastRow() {
1158: opener.insertrow(opener.maxrow);
1159: opener.addobj(opener.maxrow,'e&2');
1160: }
1161:
1162: function placeResourceInLastRow (title,url,id,linkflag) {
1163: opener.mostrecent=opener.newresource(opener.maxrow,2,opener.unescape(title),
1164: opener.unescape(url),'false','normal',id);
1165: opener.save();
1166: if (linkflag) {
1167: opener.joinres(opener.linkmode,opener.mostrecent,0);
1168: }
1169: opener.linkmode=opener.mostrecent;
1170: }
1171: JAVASCRIPT
1172: }
1173: return $js;
1174: }
1175:
1176: # HTML-Markup for table if in view-mode
1177: my $wishlistHTMLview;
1178: my $indent = $indentConst;
1179: sub wishlistView {
1180: my $nodes = shift;
1181:
1182: foreach my $n (@$nodes) {
1183: my $index = $n->value()->nindex();
1184:
1185: # start row, use data_table routines to set class to LC_even or LC_odd automatically. this row contains a checkbox, the title and the note-icon.
1186: # only display the top level entries on load
1187: $wishlistHTMLview .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1188: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1189:
1190:
1191: # checkboxes
1192: $wishlistHTMLview .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
1193: 'onclick="selectAction('."'row".$index."'".')"/></td>';
1194:
1195: # entry is a folder
1196: if ($n->value()->path() eq '') {
1197: $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">'.
1198: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
1199: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1200: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1201: $n->value()->title().'</a></td>';
1202: }
1203: # entry is a link
1204: else {
1205: $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
1206: '<a href="javascript:preview('."'".$n->value()->path()."'".');">'.
1207: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
1208: $n->value()->title().'</a></td>';
1209: }
1210:
1211: # note-icon, different icons for an entries with note and those without
1212: my $noteIMG = 'anot.png';
1213:
1214: if ($n->value()->note() ne '') {
1215: $noteIMG = 'anot2.png';
1216: }
1217:
1218: $wishlistHTMLview .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1219: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1220: ' class="LC_icon"/></a></td>';
1221:
1222: $wishlistHTMLview .= &Apache::loncommon::end_data_table_row();
1223:
1224: # start row containing the textarea for the note, do not display note on default
1225: $wishlistHTMLview .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1226: '<td></td><td>'.
1227: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1228: 'name="newnote" >'.
1229: $n->value()->note().'</textarea></td><td></td>';
1230: $wishlistHTMLview .= &Apache::loncommon::end_data_table_row();
1231:
1232: # if the entry is a folder, it could have other entries as content. if it has, call wishlistView for those entries
1233: my @children = $n->children();
1234: if ($#children >=0) {
1235: $indent += 20;
1236: &wishlistView(\@children);
1237: $indent -= 20;
1238: }
1239: }
1240: }
1241:
1242:
1243: # HTML-Markup for table if in edit-mode
1244: my $wishlistHTMLedit;
1245: my $indent = $indentConst;
1246: sub wishlistEdit {
1247: my $nodes = shift;
1248: my $curNode = 1;
1249:
1250: foreach my $n (@$nodes) {
1251: my $index = $n->value()->nindex();
1252:
1253: # start row, use data_table routines to set class to LC_even or LC_odd automatically.
1254: # this rows contains a checkbox, a select-field for sorting entries, the title in an input-field and the note-icon.
1255: # only display the top level entries on load
1256: $wishlistHTMLedit .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1257: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1258:
1259: # checkboxes
1260: $wishlistHTMLedit .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
1261: 'onclick="selectAction('."'row".$index."'".')"/></td>';
1262:
1263: # option-tags for sorting entries. we need the numbers from 1 to n with n being the number of entries on the same level as the current entry.
1264: # set the number for the current entry into brackets
1265: my $options;
1266: for (my $i = 1; $i < ((scalar @{$nodes})+1); $i++) {
1267: if ($i == $curNode) {
1268: $options .= '<option selected="selected" value="">('.$i.')</option>';
1269: }
1270: else {
1271: $options .= '<option value="'.$i.'">'.$i.'</option>';
1272: }
1273: }
1274: $curNode++;
1275:
1276: # entry is a folder
1277: if ($n->value()->path() eq '') {
1278: $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
1279: $options.'</select></td>'.
1280: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px;">'.
1281: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top" >'.
1282: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1283: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/></a>'.
1284: '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'"/>'.
1285: '</td><td></td>';
1286:
1287: }
1288: # entry is a link
1289: else {
1290: $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
1291: $options.'</select></td>'.
1292: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px;">'.
1293: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
1294: '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'"/></td>'.
1295: '<td><input type="text" name="newpath" value="'.$n->value()->path().'" alt = "'.$n->value()->path().'"/></td>';
1296: }
1297:
1298: # note-icon, different icons for an entries with note and those without
1299: my $noteIMG = 'anot.png';
1300:
1301: if ($n->value()->note() ne '') {
1302: $noteIMG = 'anot2.png';
1303: }
1304:
1305: $wishlistHTMLedit .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1306: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1307: ' class="LC_icon"/></a></td>';
1308:
1309: $wishlistHTMLedit .= &Apache::loncommon::end_data_table_row();
1310:
1311: # start row containing the textarea for the note
1312: $wishlistHTMLedit .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1313: '<td></td><td></td><td colspan="2">'.
1314: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1315: 'name="newnote">'.
1316: $n->value()->note().'</textarea></td><td></td>';
1317: $wishlistHTMLedit .= &Apache::loncommon::end_data_table_row();
1318:
1319: # if the entry is a folder, it could have other entries as content. if it has, call wishlistEdit for those entries
1320: my @children = $n->children();
1321: if ($#children >=0) {
1322: $indent += 20;
1323: &wishlistEdit(\@children);
1324: $indent -= 20;
1325: }
1326: }
1327: }
1328:
1329:
1330:
1331: # HTML-Markup for table if in move-mode
1332: my $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
1333: '<td>'.&mt('Top level').'</td><td></td></tr>';
1334: my $indent = $indentConst;
1335: sub wishlistMove {
1336: my $nodes = shift;
1337: my $marked = shift;
1338:
1339: foreach my $n (@$nodes) {
1340: my $index = $n->value()->nindex();
1341:
1342: #find out wether the current entry was marked to be moved.
1343: my $isIn = 0;
1344: foreach my $m (@$marked) {
1345: if ($index == $m) {
1346: $isIn = 1;
1347: }
1348: }
1349: # start row and set class for even or odd row. this rows contains the title and the note-icon and can contain a radio-button
1350: $wishlistHTMLmove .= &Apache::loncommon::start_data_table_row('','row'.$index);
1351:
1352:
1353: # entry is a folder
1354: if ($n->value()->path() eq '') {
1355: # display a radio-button, if the folder was not selected to be moved
1356: if (!$isIn) {
1357: $wishlistHTMLmove .= '<td><input type="radio" name="mark" id="radio'.$index.'" value="'.$index.'" /></td>'.
1358: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">';
1359: }
1360: # higlight the title, if the folder was selected to be moved
1361: else {
1362: $wishlistHTMLmove .= '<td></td>'.
1363: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;'.
1364: 'color:red;">';
1365: }
1366: #arrow- and folder-image, all folders are open, and title
1367: $wishlistHTMLmove .= '<img src="/adm/lonIcons/arrow.open.gif" id="img'.$index.'" alt = "" />'.
1368: '<img src="/adm/lonIcons/navmap.folder.open.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1369: $n->value()->title().'</td>';
1370: }
1371: # entry is a link
1372: else {
1373: # higlight the title, if the link was selected to be moved
1374: my $highlight = '';
1375: if ($isIn) {
1376: $highlight = 'style="color:red;"';
1377: }
1378: # link-image and title
1379: $wishlistHTMLmove .= '<td></td>'.
1380: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
1381: '<a href="javascript:preview('."'".$n->value()->path()."'".');" '.$highlight.'>'.
1382: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
1383: $n->value()->title().'</a></td>';
1384: }
1385:
1386: # note-icon, different icons for an entries with note and those without
1387: my $noteIMG = 'anot.png';
1388:
1389: if ($n->value()->note() ne '') {
1390: $noteIMG = 'anot2.png';
1391: }
1392:
1393: $wishlistHTMLmove .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1394: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1395: ' class="LC_icon"/></a></td>';
1396:
1397: $wishlistHTMLmove .= &Apache::loncommon::end_data_table_row();
1398:
1399: # start row containing the textarea for the note, readonly in move-mode
1400: $wishlistHTMLmove .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1401: '<td></td><td>'.
1402: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1403: 'name="newnote" readonly="readonly">'.
1404: $n->value()->note().'</textarea></td><td></td>'.
1405: &Apache::loncommon::end_data_table_row();
1406:
1407: # if the entry is a folder, it could have other entries as content. if it has, call wishlistMove for those entries
1408: my @children = $n->children();
1409: if ($#children >=0) {
1410: $indent += 20;
1411: &wishlistMove(\@children, $marked);
1412: $indent -= 20;
1413: }
1414: }
1415: }
1416:
1417:
1418:
1419: # HTML-Markup for table if in import-mode
1420: my $wishlistHTMLimport;
1421: my $indent = $indentConst;
1422: my $form = 1;
1423: sub wishlistImport {
1424: my $nodes = shift;
1425:
1426: foreach my $n (@$nodes) {
1427: my $index = $n->value()->nindex();
1428:
1429: # start row, use data_table routines to set class to LC_even or LC_odd automatically. this row contains a checkbox, the title and the note-icon.
1430: # only display the top level entries on load
1431: $wishlistHTMLimport .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1432: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1433:
1434:
1435: # checkboxes
1436: $wishlistHTMLimport .= '<td>'.
1437: '<input type="checkbox" name="check" id="check'.$index.'" value="'.$index.'" '.
1438: 'onclick="selectAction('."'row".$index."'".')"/>'.
1439: '<input type="hidden" name="title'.$index.'" value="'.&escape($n->value()->title()).'">'.
1440: '<input type="hidden" name="filelink'.$index.'" value="'.&escape($n->value()->path()).'">'.
1441: '<input type="hidden" name="id'.$index.'">'.
1442: '</td>';
1443:
1444: # entry is a folder
1445: if ($n->value()->path() eq '') {
1446: $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">'.
1447: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
1448: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1449: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1450: $n->value()->title().'</a></td>';
1451: }
1452: # entry is a link
1453: else {
1454: $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
1455: '<a href="javascript:preview('."'".$n->value()->path()."'".');">'.
1456: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
1457: $n->value()->title().'</a></td>';
1458: $form++;
1459: }
1460:
1461: # note-icon, different icons for an entries with note and those without
1462: my $noteIMG = 'anot.png';
1463:
1464: if ($n->value()->note() ne '') {
1465: $noteIMG = 'anot2.png';
1466: }
1467:
1468: $wishlistHTMLimport .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1469: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1470: ' class="LC_icon"/></a></td>';
1471:
1472: $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
1473:
1474: # start row containing the textarea for the note, do not display note on default, readonly in import-mode
1475: $wishlistHTMLimport .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1476: '<td></td><td>'.
1477: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1478: 'name="newnote" readonly="readonly">'.
1479: $n->value()->note().'</textarea></td><td></td>';
1480: $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
1481:
1482: # if the entry is a folder, it could have other entries as content. if it has, call wishlistImport for those entries
1483: my @children = $n->children();
1484: if ($#children >=0) {
1485: $indent += 20;
1486: &wishlistImport(\@children);
1487: $indent -= 20;
1488: }
1489: }
1490: }
1491:
1492: # Returns the HTML-Markup for wishlist
1493: sub makePage {
1494: my $rootgiven = shift;
1495: my $mode = shift;
1496: my $marked = shift;
1497:
1498: $root = $rootgiven;
1499: @childrenRt = $root->children();
1500:
1501: # breadcrumbs and start_page
1502: &Apache::lonhtmlcommon::clear_breadcrumbs();
1503: &Apache::lonhtmlcommon::add_breadcrumb(
1504: { href => '/adm/wishlist?mode='.$mode,
1505: text => 'Wishlist'});
1506: my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
1507: {'add_entries' => {
1508: 'onload' => 'javascript:onLoadAction('."'".$mode."'".');',
1509: 'onunload' => 'javascript:window.name = '."'loncapaclient'"}});
1510:
1511: my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Wishlist').&Apache::loncommon::help_open_topic('Wishlist'));
1512:
1513: # get javascript-code for wishlist-interactions
1514: my $js = &JSforWishlist();
1515:
1516: # texthash for items in funtionlist
1517: my %lt = &Apache::lonlocal::texthash(
1518: 'ed' => 'Edit',
1519: 'vw' => 'View',
1520: 'al' => 'Add Link',
1521: 'af' => 'Add Folder',
1522: 'mv' => 'Move Selected',
1523: 'dl' => 'Delete Selected',
1524: 'sv' => 'Save');
1525:
1526: # start functionlist
1527: my $functions = &Apache::lonhtmlcommon::start_funclist();
1528:
1529: # icon for edit-mode, display when in view-mode
1530: if ($mode eq 'view') {
1531: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1532: 'onclick="setFormAction('."'save','edit'".');" class="LC_menubuttons_link">'.
1533: '<img src="/res/adm/pages/edit-mode-22x22.png" alt="'.$lt{'ed'}.'" '.
1534: 'title="'.$lt{'ed'}.'" class="LC_icon"/> '.
1535: '<span class="LC_menubuttons_inline_text">'.$lt{'ed'}.'</span></a>');
1536: }
1537: # icon for view-mode, display when in edit-mode
1538: else {
1539: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1540: 'onclick="setFormAction('."'save','view'".');" class="LC_menubuttons_link">'.
1541: '<img src="/res/adm/pages/view-mode-22x22.png" alt="'.$lt{'vw'}.'" '.
1542: 'title="'.$lt{'vw'}.'" class="LC_icon"/> '.
1543: '<span class="LC_menubuttons_inline_text">'.$lt{'vw'}.'</span></a>');
1544: }
1545:
1546: # icon for adding a new link
1547: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1548: 'onclick="newLink();" class="LC_menubuttons_link">'.
1549: '<img src="/res/adm/pages/link-new-22x22.png" alt="'.$lt{'al'}.'" '.
1550: 'title="'.$lt{'al'}.'" class="LC_icon"/>'.
1551: '<span class="LC_menubuttons_inline_text">'.$lt{'al'}.'</span></a>');
1552:
1553: # icon for adding a new folder
1554: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1555: 'onclick="newFolder();" class="LC_menubuttons_link">'.
1556: '<img src="/res/adm/pages/folder-new-22x22.png" alt="'.$lt{'af'}.'" '.
1557: 'title="'.$lt{'af'}.'" class="LC_icon"/>'.
1558: '<span class="LC_menubuttons_inline_text">'.$lt{'af'}.'</span></a>');
1559:
1560: # icon for moving entries
1561: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1562: 'onclick="setFormAction('."'move','move'".'); " class="LC_menubuttons_link">'.
1563: '<img src="/res/adm/pages/move-22x22.png" alt="'.$lt{'mv'}.'" '.
1564: 'title="'.$lt{'mv'}.'" class="LC_icon" />'.
1565: '<span class="LC_menubuttons_inline_text">'.$lt{'mv'}.'</span></a>');
1566:
1567: # icon for deleting entries
1568: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1569: 'onclick="setFormAction('."'delete','".$mode."'".'); " class="LC_menubuttons_link">'.
1570: '<img src="/res/adm/pages/del.png" alt="'.$lt{'dl'}.'" '.
1571: 'title="'.$lt{'dl'}.'" class="LC_icon" />'.
1572: '<span class="LC_menubuttons_inline_text">'.$lt{'dl'}.'</span></a>');
1573:
1574: # icon for saving changes
1575: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1576: 'onclick="setFormAction('."'saveOK','".$mode."'".'); " class="LC_menubuttons_link">'.
1577: '<img src="/res/adm/pages/save-22x22.png" alt="'.$lt{'sv'}.'" '.
1578: 'title="'.$lt{'sv'}.'" class="LC_icon" />'.
1579: '<span class="LC_menubuttons_inline_text">'.$lt{'sv'}.'</span></a>');
1580:
1581: # end funtionlist and generate subbox
1582: $functions.= &Apache::lonhtmlcommon::end_funclist();
1583: my $subbox = &Apache::loncommon::head_subbox($functions);
1584:
1585: # start form
1586: my $inner .= '<form name="list" action ="/adm/wishlist" method="post">'.
1587: '<input type="hidden" id="action" name="action" value=""/>';
1588:
1589: # only display subbox in view- or edit-mode
1590: if ($mode eq 'view' || $mode eq 'edit') {
1591: $inner .= $subbox;
1592: }
1593:
1594: # generate table-content depending on mode
1595: if ($mode eq 'edit') {
1596: &wishlistEdit(\@childrenRt);
1597: if ($wishlistHTMLedit ne '') {
1598: $inner .= &Apache::loncommon::start_data_table("LC_tableOfContent");
1599: $inner .= $wishlistHTMLedit;
1600: $inner .= &Apache::loncommon::end_data_table();
1601: }
1602: else {
1603: $inner .= '<span class="LC_info">'.&mt("Your wishlist ist currently empty.").'</span>';
1604: }
1605: $wishlistHTMLedit = '';
1606: }
1607: elsif ($mode eq 'view') {
1608: &wishlistView(\@childrenRt);
1609: if ($wishlistHTMLview ne '') {
1610: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLview.'</table>';
1611: }
1612: else {
1613: $inner .= '<span class="LC_info">'.&mt("Your wishlist ist currently empty.").'</span>';
1614: }
1615: $wishlistHTMLview = '';
1616: }
1617: else {
1618: my $markStr = '';
1619: foreach my $m (@$marked) {
1620: $markStr .= $m.',';
1621: }
1622: if ($markStr) {
1623: $markStr = substr($markStr, 0, length($markStr)-1);
1624: $inner .= '<input type="hidden" value="'.$markStr.'" name="markedToMove"/>';
1625: $inner .= '<p><span class="LC_info">'.&mt('You have selected the red marked entries to be moved to another folder. '.
1626: 'Now choose the new destination folder.').'</span></p>';
1627: &wishlistMove(\@childrenRt, $marked);
1628: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLmove.'</table><br/><br/>';
1629: $inner .= '<input type="button" value="'.&mt('Move').'" onclick="setFormAction('."'move','view'".');"/>'.
1630: '<input type="button" value="'.&mt('Cancel').'" onclick="go('."'/adm/wishlist'".')"/>';
1631:
1632: $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
1633: '<td>'.&mt('Top level').'</td><td></td></tr>';
1634: }
1635: else {
1636: $inner .= '<p><span class="LC_info">'.&mt("You haven't marked any entry to move.").'</span></p>'.
1637: '<input type="button" value="'.&mt('Back').'" onclick="go('."'/adm/wishlist'".')"/>';
1638: }
1639: }
1640:
1641: # end form
1642: $inner .= '</form>';
1643:
1644: # end_page
1645: my $endPage = &Apache::loncommon::end_page();
1646:
1647: # put all page-elements together
1648: my $page = $startPage.$breadcrumbs.$js.$inner.$endPage;
1649:
1650: return $page;
1651: }
1652:
1653:
1654: # Returns the HTML-Markup for the PopUp, shown when a new link should set, when NOT
1655: # beeing in the wishlist-interface (method is called in lonmenu and lonsearchcat)
1656: sub makePopUpNewLink{
1657:
1658: # Get all existing folders to offer posibility to set a new link
1659: # into a folder
1660: my %TreeHashLink = &Apache::lonwishlist::getWishlist();
1661: my $rootLink = &Apache::Tree::HashToTree(\%TreeHashLink);
1662: my @childrenRtLink = $rootLink->children();
1663:
1664: $foldersOption = '';
1665: @allFolders = ();
1666: &getFoldersToArray(\@childrenRtLink);
1667: &getFoldersForOption(\@childrenRtLink);
1668:
1669: my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>'.$foldersOption;
1670: $foldersOption = '';
1671: @allFolders = ();
1672:
1673: # HTML-Markup for 'Set a link for this resource to wishlist'
1674: # this is written via JavaScript document.write (function set_wishlistlink)
1675: # it is split into 3 parts and the inputfields for title and path are left out
1676: # these fields are inserted later to set the values for title and path
1677: # automatically via JavaScript (document.title and location.pathname)
1678:
1679: my $start_page_wishlistlink =
1680: &Apache::loncommon::start_page('Set link to wishlist',undef,
1681: {'only_body' => 1,
1682: 'js_ready' => 1,
1683: 'bgcolor' => '#FFFFFF',});
1684:
1685: my $warningLink = &mt('You must insert a title!');
1686:
1687: my $in_page_wishlistlink1 = '<h1>'.&mt('Set a link to wishlist').'</h1>'.
1688: '<form method="post" name="newlink" action="/adm/wishlist?mode=set" '.
1689: 'onsubmit="return newlinksubmit();" >'.
1690: &Apache::lonhtmlcommon::start_pick_box().
1691: &Apache::lonhtmlcommon::row_title(&mt('Link Title'));
1692:
1693: my $in_page_wishlistlink2 = &Apache::lonhtmlcommon::row_closure().
1694: &Apache::lonhtmlcommon::row_title(&mt('Path'));
1695:
1696: my $in_page_wishlistlink3 = &Apache::lonhtmlcommon::row_closure().
1697: &Apache::lonhtmlcommon::row_title(&mt('Note')).
1698: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea>'.
1699: &Apache::lonhtmlcommon::row_closure(1).
1700: &Apache::lonhtmlcommon::end_pick_box().
1701: '<br/><br/>'.
1702: '<input type="submit" value="'.&mt('Save in').'" />'.
1703: '<select name="folders">'.
1704: $options.
1705: '</select>'.
1706: '<input type="button" value="'.&mt('cancel').'" onclick="javascript:window.close();" />'.
1707: '</form>';
1708: $options = '';
1709:
1710: # remove all \n for inserting on javascript document.write
1711: $in_page_wishlistlink1 =~ s/\n//g;
1712: $in_page_wishlistlink2 =~ s/\n//g;
1713: $in_page_wishlistlink3 =~ s/\n//g;
1714:
1715: my $end_page_wishlistlink =
1716: &Apache::loncommon::end_page({'js_ready' => 1});
1717:
1718: # Add JavaScript-function to set link for a ressource to wishlist
1719: my $js.=<<SCRIPT;
1720: if(!title){
1721: title=document.title;
1722: }
1723: if(!path){
1724: path=location.pathname;
1725: }
1726: title = title.replace(/^LON-CAPA /,'');
1727: wishlistlink=window.open('','wishlistNewLink','width=560,height=350,scrollbars=0');
1728: wishlistlink.document.write(
1729: '$start_page_wishlistlink'
1730: +'<script type="text\/javascript">'
1731: +'function newlinksubmit(){'
1732: +'var title = document.getElementsByName("title")[0].value;'
1733: +'if (!title) {'
1734: +'alert("$warningLink");'
1735: +'return false;}'
1736: +'return true;}'
1737: +'<\/scr'+'ipt>'
1738: +'$in_page_wishlistlink1'
1739: +'<input type="text" name="title" size="45" value="'+title+'"/>'
1740: +'$in_page_wishlistlink2'
1741: +'<input type="text" name="path" size="45" value="'+path+'" '
1742: +'readonly="readonly" style="background-color: #DDDDDD"/>'
1743: +'$in_page_wishlistlink3'
1744: +'$end_page_wishlistlink' );
1745: wishlistlink.document.close();
1746: SCRIPT
1747:
1748: return $js;
1749: }
1750:
1751: # Returns the HTML-Markup for the page, shown when a link was set
1752: sub makePageSet {
1753: # start_page
1754: my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
1755: {'only_body' => 1});
1756:
1757: # confirm success and offer link to wishlist
1758: my $message = &Apache::lonhtmlcommon::confirm_success(&mt('Link successfully set!'));
1759: $message = &Apache::loncommon::confirmwrapper($message);
1760:
1761: my $inner .= '<br>'.$message.'<br/><br/>'.
1762: '<a href="javascript:;" onclick="opener.open('."'/adm/wishlist'".');window.close();">'.&mt('Go to wishlist').'</a>'.
1763: ' <a href="javascript:;" onclick="window.close();">'.&mt('Close this window').'</a>';
1764:
1765: # end_page
1766: my $endPage = &Apache::loncommon::end_page();
1767:
1768: # put all page-elements together
1769: my $page = $startPage.$inner.$endPage;
1770:
1771: return $page;
1772: }
1773:
1774:
1775: # Returns the HTML-Markup for the page, shown when links should be imported into a course
1776: sub makePageImport {
1777: my $rootgiven = shift;
1778: my $rat = shift;
1779:
1780: $root = $rootgiven;
1781: @childrenRt = $root->children();
1782: # start_page
1783: my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
1784: {'only_body' => 1});
1785:
1786: # get javascript-code for wishlist-interactions
1787: my $js = &JSforWishlist();
1788: $js .= &JSforImport($rat);
1789:
1790: my $inner = '<h1>'.&mt('Import Resources from Wishlist').'</h1>';
1791: if (!$rat) {
1792: $inner .= '<p><span class="LC_info">'.&mt("Please note that you can use the checkboxes corresponding to a folder to ".
1793: "easily check all links within this folder. The folder structure itself can't be imported. ".
1794: "All checked links will be imported into the current folder of your course.").'</span></p>';
1795: }
1796: else {
1797: $inner .= '<p><span class="LC_info">'.&mt("Please note that you can use the checkboxes corresponding to a folder to ".
1798: "easily check all links within this folder. The folder structure itself can't be imported. ")
1799: .'</span></p>';
1800: }
1801: my %wishlist = &getWishlist();
1802:
1803: #FIXME Saved string containing all folders in wishlist.db-file (key 'folders') in first version of lonwishlist
1804: #After splitting lonwishlist into two modules, this is not necessary anymore. So, dependent from when the wishlist
1805: #was first called (i.e. when wishlist.db was created), there might be an entry 'folders' or not. Number of links in
1806: #wishlist.db depends on wether this entry exists or not...JW
1807: my $fnum;
1808: if (defined $wishlist{'folders'}) {
1809: $fnum = (keys %wishlist)-2;
1810: }
1811: else {
1812: $fnum = (keys %wishlist)-1;
1813: }
1814:
1815: $inner .= '<form method="post" name="groupsort">'.
1816: '<input type="hidden" value="'.$fnum.'" name="fnum">'.
1817: '<input type="button" onclick="javascript:checkAll()" id="checkallbutton" value="'.&mt('Check All').'">'.
1818: '<input type="button" onclick="javascript:uncheckAll()" id="uncheckallbutton" value="'.&mt('Uncheck All').'">'.
1819: '<input type="button" value="'.&mt('Import Checked').'" onclick="finish_import();">'.
1820: '<input type="button" value="'.&mt('Cancel').'" onclick="window.close();"><br/><br/>';
1821:
1822:
1823: # wishlist-table
1824: &wishlistImport(\@childrenRt);
1825: if ($wishlistHTMLimport ne '') {
1826: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLimport.'</table>';
1827: }
1828: else {
1829: $inner .= '<span class="LC_info">'.&mt("Your wishlist ist currently empty.").'</span>';
1830: }
1831: $wishlistHTMLimport = '';
1832:
1833: $inner .= '</form>';
1834:
1835: # end_page
1836: my $endPage = &Apache::loncommon::end_page();
1837:
1838: # put all page-elements together
1839: my $page = $startPage.$js.$inner.$endPage;
1840:
1841: return $page;
1842: }
1843:
1844:
1845: # Returns the HTML-Markup for error-page
1846: sub makeErrorPage {
1847: # breadcrumbs and start_page
1848: &Apache::lonhtmlcommon::add_breadcrumb(
1849: { href => '/adm/wishlist',
1850: text => 'Wishlist'});
1851: my $startPage = &Apache::loncommon::start_page('Wishlist');
1852:
1853: my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Wishlist').&Apache::loncommon::help_open_topic('Wishlist'));
1854: &Apache::lonhtmlcommon::clear_breadcrumbs();
1855:
1856: # error-message
1857: my $inner .= '<span class="LC_error">'.&mt('An error occurred! Please try again later.').'</span>';
1858:
1859: # end_page
1860: my $endPage = &Apache::loncommon::end_page();
1861:
1862: # put all page-elements together
1863: my $page = $startPage.$breadcrumbs.$inner.$endPage;
1864:
1865: return $page;
1866: }
1867:
1868:
1869: # ----------------------------------------------------- package Tree
1870: # Extend CPAN-Module Tree by function like 'moveNode' or 'deleteNode'
1871: package Apache::Tree;
1872:
1873: =pod
1874:
1875: =head2 Routines from package Tree
1876:
1877: =over 4
1878:
1879: =item * &getNodeByIndex(index, nodes)
1880:
1881: Searches for a node, specified by the index, in nodes (reference to array) and returns it.
1882:
1883:
1884: =item * &moveNode(node, at, newParent)
1885:
1886: Moves a given node to a new parent (if new parents is defined) or change the position from a node within its siblings (means sorting, at must be defined).
1887:
1888:
1889: =item * &removeNode(node)
1890:
1891: Removes a node given by node from the tree.
1892:
1893:
1894: =item * &TreeIndex(children)
1895:
1896: Sets an index for every node in the tree, beginning with 0.
1897: Recursive call starting with all children of the root of the tree (parameter children is reference to an array containing the nodes of the current level).
1898:
1899:
1900: =item * &setCountZero()
1901:
1902: Resets index counter.
1903:
1904:
1905: =item * &RootToHash(childrenRt)
1906:
1907: Converts the root-node to a hash-entry: the key is root and values are just the indices of root's children.
1908:
1909:
1910: =item * &TreeToHash(childrenRt)
1911:
1912: Converts all other nodes in the tree to hash. Each node is one hash-entry where the keys are the index of a node and the values are all other attributes (containing tile, path, note, date and indices for all direct children).
1913: Recursive call starting with all children of the root of the tree (parameter childrenRT is reference to an array containing the nodes of the current level).
1914:
1915:
1916: =item * &HashToTree()
1917:
1918: Converts the hash to a tree. Builds a tree-object for each entry in the hash. Afterwards call &buildTree(node, childrenIn, TreeNodes, TreeHash) to connect the tree-objects.
1919:
1920:
1921: =item * &buildTree(node, childrenIn, TreeNodes, TreeHash)
1922:
1923: Joins the nodes to a tree.
1924: Recursive call starting with root and all children of root (parameter childrenIn is reference to an array containing the nodes indices of the current level).
1925:
1926:
1927: =back
1928:
1929: =cut
1930:
1931:
1932: # returns the node with a given index from a list of nodes
1933: sub getNodeByIndex {
1934: my $index = shift;
1935: my $nodes = shift;
1936: my $found;
1937:
1938: foreach my $n (@$nodes) {
1939: my $curIndex = $n->value()->nindex();
1940: if ($curIndex == $index) {
1941: $found = $n;
1942: }
1943: }
1944: return $found;
1945: }
1946:
1947: # moves a given node to a new parent or change the position from a node
1948: # within its siblings (sorting)
1949: sub moveNode {
1950: my $node = shift;
1951: my $at = shift;
1952: my $newParent = shift;
1953:
1954:
1955: if (!$newParent) {
1956: $newParent = $node->parent();
1957: }
1958:
1959: $node->parent()->remove_child($node);
1960:
1961: if (defined $at) {
1962: $newParent->add_child({at => $at},$node);
1963: }
1964: else {
1965: $newParent->add_child($node);
1966: }
1967:
1968: # updating root's children
1969: @childrenRt = $root->children();
1970: }
1971:
1972: # removes a given node
1973: sub removeNode() {
1974: my $node = shift;
1975: my @children = $node->children();
1976:
1977: if ($#children >= 0) {
1978: foreach my $c (@children) {
1979: &removeNode($c);
1980: }
1981: }
1982: $node->parent()->remove_child($node);
1983:
1984: # updating root's children
1985: @childrenRt = $root->children();
1986: }
1987:
1988:
1989: # set an index for every node in the tree, beginning with 0
1990: my $count = 0;
1991: sub TreeIndex {
1992: my $children = shift;
1993:
1994: foreach my $n (@$children) {
1995: my @children = $n->children();
1996: $n->value()->nindex($count);$count++;
1997:
1998: if ($#children>=0) {
1999: &TreeIndex(\@children);
2000: }
2001: }
2002: }
2003:
2004: # reset index counter
2005: sub setCountZero {
2006: $count = 0;
2007: }
2008:
2009:
2010: # convert the tree to a hash
2011: # each node is one hash-entry
2012: # keys are the indices, values are all other attributes
2013: # (containing tile, path, note, date and indices for all direct children)
2014: # except for root: the key is root and values are
2015: # just the indices of root's children
2016: sub RootToHash {
2017: my $childrenRt = shift;
2018: my @indexarr = ();
2019:
2020: foreach my $c (@$childrenRt) {
2021: push (@indexarr, $c->value()->nindex());
2022: }
2023: $TreeToHash{'root'} = [@indexarr];
2024: }
2025:
2026: sub TreeToHash {
2027: my $childrenRt = shift;
2028:
2029: foreach my $n (@$childrenRt) {
2030: my @arrtmp = ();
2031: $arrtmp[0] = $n->value()->title();
2032: $arrtmp[1] = $n->value()->path();
2033: $arrtmp[2] = $n->value()->note();
2034: $arrtmp[3] = $n->value()->date();
2035: my @childrenRt = $n->children();
2036: my $co = 4;
2037: foreach my $c (@childrenRt) {
2038: my $i = $c->value()->nindex();
2039: $arrtmp[$co] = $i;
2040: $co++;
2041: }
2042: $TreeToHash{$n->value()->nindex} = [ @arrtmp];
2043: if ($#childrenRt>=0) {
2044: &TreeToHash(\@childrenRt);
2045: }
2046: }
2047: }
2048:
2049:
2050: # convert the hash to a tree
2051: # build a tree-object for each entry in the hash
2052: # afterwards call &buildTree to connect the tree-objects
2053: sub HashToTree {
2054: my $TreeHash = shift;
2055: my @TreeNodes = ();
2056: my $root;
2057:
2058: foreach my $key (keys %$TreeHash) {
2059: if ($key eq 'root') {
2060: $root = Tree->new("root");
2061: }
2062: elsif ($key ne 'folders') {
2063: my @attributes = @{ $$TreeHash{$key} };
2064: my $tmpNode;
2065: $tmpNode = Tree->new(Entry->new(title=>$attributes[0],
2066: path=>$attributes[1],
2067: note=>$attributes[2],
2068: date=>$attributes[3],
2069: nindex=>$key));
2070: push(@TreeNodes, $tmpNode);
2071: # shift all attributes except for
2072: # the indices representing the children of a node
2073: shift(@attributes);
2074: shift(@attributes);
2075: shift(@attributes);
2076: shift(@attributes);
2077: $$TreeHash{$key} = [ @attributes ];
2078: }
2079: }
2080: # if there are nodes, build up the tree-structure
2081: if (defined $$TreeHash{'root'} && $$TreeHash{'root'} ne '') {
2082: my @childrenRtIn = @{ $$TreeHash{'root'} };
2083: &buildTree(\$root, \@childrenRtIn,\@TreeNodes,$TreeHash);
2084: }
2085: return $root;
2086: }
2087:
2088:
2089: # join the nodes to a tree
2090: sub buildTree {
2091: my ($node, $childrenIn, $TreeNodes, $TreeHash) = @_;
2092: bless($node, 'Tree');
2093: foreach my $c (@$childrenIn) {
2094: my $tmpNode = &getNodeByIndex($c,$TreeNodes);
2095: $$node->add_child($tmpNode);
2096: my @childrenIn = @{ $$TreeHash{$tmpNode->value()->nindex()} };
2097: &buildTree(\$tmpNode,\@childrenIn,$TreeNodes,$TreeHash);
2098: }
2099:
2100: }
2101:
2102:
2103: # ----------------------------------------------------- package Entry
2104: # package that defines the entrys a wishlist could have
2105: # i.e. folders and links
2106: package Entry;
2107:
2108: # constructor
2109: sub new {
2110: my $invocant = shift;
2111: my $class = ref($invocant) || $invocant;
2112: my $self = { @_ }; #set attributes
2113: bless($self, $class);
2114: return $self;
2115: }
2116:
2117: # getter and setter
2118: sub title {
2119: my $self = shift;
2120: if ( @_ ) { $self->{title} = shift}
2121: return $self->{title};
2122: }
2123:
2124: sub date {
2125: my $self = shift;
2126: if ( @_ ) { $self->{date} = shift}
2127: return $self->{date};
2128: }
2129:
2130: sub note {
2131: my $self = shift;
2132: if ( @_ ) { $self->{note} = shift}
2133: return $self->{note};
2134: }
2135:
2136: sub path {
2137: my $self = shift;
2138: if ( @_ ) { $self->{path} = shift}
2139: return $self->{path};
2140: }
2141:
2142: sub nindex {
2143: my $self = shift;
2144: if ( @_ ) { $self->{nindex} = shift}
2145: return $self->{nindex};
2146: }
2147:
2148:
2149: 1;
2150: __END__
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