File:
[LON-CAPA] /
loncom /
interface /
lonwishlist.pm
Revision
1.24:
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Sat Dec 20 15:35:40 2014 UTC (9 years, 6 months ago) by
raeburn
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MAIN
CVS tags:
version_2_11_1,
HEAD
- Accommodate single quotes in resource URL in "Stored Links" and in "Edit" link
- Accommodate single quotes in URLs in options in "Select Recent" dropdown list
when browsing Resource Space.
- Consistent escaping of special characters for Stored Links added when displaying
a resource in a course, and when browsing Resource Space.
1: # The LearningOnline Network with CAPA
2: # Utility-routines for wishlist
3: #
4: # $Id: lonwishlist.pm,v 1.24 2014/12/20 15:35:40 raeburn 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 qw(:DEFAULT :match);
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/^\Qerror:No such file\E/) {
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 corresponds 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, numskipped)
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: Side effect: increments the scalar ref: numskipped with a count of items in
474: Stored Links unavailable for selection, (e.g., now marked obsolete or
475: inaccessible in Community context).
476:
477: =item * &makePage(mode, marked)
478:
479: 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".
480: Calls &wishlistView(nodes), &wishlistEdit(nodes) or &wishlistMove(nodes, marked).
481:
482:
483: =item * &makePopUpNewLink(title, path)
484:
485: Returns the HTML-markup for the pop-up-window 'Add Link'. If this is called up from a browsed resource, the input-fields titel and path are pre-filled with the resources' meta-data-title and it's path.
486:
487:
488: =item * &makePopUpNewFolder()
489:
490: Returns the HTML-markup for the pop-up-window 'Add Folder'.
491:
492:
493: =item * &makePageSet()
494:
495: Returns the HTML-Markup for the page shown when a link was set by using the icon when viewing a resource.
496:
497:
498: =item * &makePageImport()
499:
500: Returns the HTML-Markup for the page shown when links should be imported into courses.
501:
502:
503: =item * &makeErrorPage ()
504:
505: Returns the HTML-Markup for an error-page shown if the wishlist could not be loaded.
506:
507:
508: =back
509:
510: =cut
511:
512:
513: # Return a script-tag containing Javascript-function
514: # needed for wishlist actions like 'new link' ect.
515: sub JSforWishlist {
516: my $startPagePopup = &Apache::loncommon::start_page('Stored Links',undef,
517: {'only_body' => 1,
518: 'js_ready' => 1,
519: 'bgcolor' => '#FFFFFF',});
520: my $endPagePopup = &Apache::loncommon::end_page({'js_ready' => 1});
521:
522: @allFolders = ();
523: &getFoldersToArray(\@childrenRt);
524: &getFoldersForOption(\@childrenRt);
525:
526: # it is checked, wether a path links to a LON-CAPA-resource or an external website. links to course-contents are not allowed
527: # because they probably will return a kind of 'no access' (unless the user is already in the course, the path links to).
528: # also importing these kind of links into a course does not make much sense.
529: # to find out if a path (not starting with /res/...) links to course-contents, the same filter as in lonwrapper is used,
530: # that means that it is checked wether a path contains .problem, .quiz, .exam etc.
531: # this is good for most cases but crashes as soon as a real external website contains one of this pattern in its URL.
532: # so maybe there's a better way to find out wether a given URL belongs to a LON-CAPA-server or not ...?
533: my $warningLinkNotAllowed1 =
534: &mt('You can only insert links to LON-CAPA resources from the resource-pool'.
535: ' or to external websites.'.
536: ' Paths to LON-CAPA resources must be of the form /res/domain/user/...'.
537: ' Paths to external websites must contain the network protocol, e.g. http://...');
538: my $warningLinkNotAllowed2 = &mt('The following link is not allowed:').' ';
539: my $warningLink = &mt('You must insert a title and a path!');
540: my $warningFolder = &mt('You must insert a title!');
541: my $warningDelete = &mt('Are you sure you want to delete the selected entries? Deleting a folder also deletes all entries within this folder!');
542: 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.');
543: my $warningMoveS = &mt('You must select at minimum one entry to move!');
544: my $warningMoveD = &mt('You must select a destination folder!');
545: $foldersOption = '';
546:
547: my $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
548: function newLink() {
549: newlinkWin=window.open('/adm/wishlist?mode=newLink','newlinkWin','width=580,height=350, scrollbars=yes');
550: }
551:
552: function newFolder() {
553: newfolderWin=window.open('/adm/wishlist?mode=newFolder','newfolderWin','width=580,height=270, scrollbars=yes');
554: }
555:
556: function setFormAction(action,mode) {
557: var r = true;
558: setAction('');
559: if (action == 'delete') {
560: r = confirm("$warningDelete");
561: setAction('delete');
562: }
563: else if (action == 'save') {
564: var d = getDifferences();
565: if (d) {
566: if (!confirm('$warningSave')) {
567: setAction('noSave');
568: r = true;
569: }
570: else {
571: r = linksOK();
572: }
573: }
574: }
575: else if (action == 'saveOK') {
576: r = linksOK();
577: }
578: else if (action == 'move') {
579: r = selectDestinationFolder(mode);
580: }
581: document.getElementsByName('list')[0].setAttribute("action", "/adm/wishlist?mode="+mode);
582: if (r) {
583: document.getElementsByName('list')[0].submit();
584: }
585: }
586:
587: function setAction(action) {
588: document.getElementById('action').value = action;
589: }
590:
591: function getDifferences() {
592: var newtitles = document.getElementsByName('newtitle');
593: var i = 0;
594: for (i=0;i<newtitles.length;i++) {
595: var newt = newtitles[i].value;
596: var oldt = newtitles[i].alt;
597: if (newt != oldt) {
598: return true;
599: }
600: }
601: var newpath = document.getElementsByName('newpath');
602: var i = 0;
603: for (i=0;i<newpath.length;i++) {
604: var newp = newpath[i].value;
605: var oldp = newpath[i].alt;
606: if (newp != oldp) {
607: return true;
608: }
609: }
610: var newnote = document.getElementsByName('newnote');
611: var i = 0;
612: for (i=0;i<newnote.length;i++) {
613: var newn = newnote[i].value;
614: var oldn = newnote[i].innerHTML;
615: if (newn != oldn) {
616: return true;
617: }
618: }
619: return false;
620: }
621:
622: function linksOK() {
623: var newpath = document.getElementsByName('newpath');
624: var i = 0;
625: for (i=0;i<newpath.length;i++) {
626: var path = newpath[i].value;
627: var linkOK = (path.match(/^http:\\/\\//) || path.match(/^https:\\/\\//))
628: && !(path.match(/\\.problem/) || path.match(/\\.exam/)
629: || path.match(/\\.quiz/) || path.match(/\\.assess/)
630: || path.match(/\\.survey/) || path.match(/\\.form/)
631: || path.match(/\\.library/) || path.match(/\\.page/)
632: || path.match(/\\.sequence/));
633: if (!path.match(/^(\\/res\\/)/) && !linkOK) {
634: alert("$warningLinkNotAllowed1 $warningLinkNotAllowed2"+path);
635: return false;
636: }
637: }
638: return true;
639: }
640:
641: function onLoadAction(mode) {
642: window.name = 'wishlist';
643: if (mode == "edit") {
644: var deepestRows = getDeepestRows();
645: setDisplaySelect(deepestRows, '');
646: }
647: }
648:
649: function folderAction(rowid) {
650: var row = document.getElementById(rowid);
651: var indent = getIndent(row);
652: var displ;
653: var status;
654: if (getImage(row) == 'closed') {
655: displ = '';
656: status = 'open';
657: }
658: else {
659: displ = 'LC_hidden';
660: status = 'closed';
661: }
662: setImage(row,status);
663: if (getNextRow(row) != null) {
664: var nextIndent = getIndent(getNextRow(row));
665: row = getNextRow(row);
666: while (nextIndent > indent) {
667: if (displ == '') {
668: row.className = (row.className).replace('LC_hidden','');
669: }
670: else if (displ != '' && !((row.className).match('LC_hidden'))) {
671: var oldClass = row.className;
672: row.className = oldClass+' LC_hidden';
673: setDisplayNote(row.id.replace('row','note'),'LC_hidden');
674: }
675: if (status == 'open' && getImage(row).match('closed')) {
676: row = getNextRowWithIndent(row, getIndent(row));
677: }
678: else {
679: row = getNextRow(row);
680: }
681: if (row != null) {
682: nextIndent = getIndent(row);
683: }
684: else {
685: nextIndent = indent;
686: }
687: }
688: }
689: setClasses();
690: var newtitles = document.getElementsByName('newtitle');
691: if (newtitles.length>0) {
692: var deepestRows = getDeepestRows();
693: var otherRows = getOtherRows(deepestRows);
694: setDisplaySelect(deepestRows,'');
695: setDisplaySelect(otherRows,'LC_hidden');
696: }
697: }
698:
699: function selectAction(rowid) {
700: var row = document.getElementById(rowid);
701: var indent = getIndent(row);
702: var checked = getChecked(row);
703: var previousFolderRows = new Array();
704: if (indent != 0) {
705: previousFolderRows = getPreviousFolderRows(row);
706: }
707: if (getNextRow(row) != null) {
708: var nextIndent = getIndent(getNextRow(row));
709: row = getNextRow(row);
710: while (nextIndent > indent) {
711: setChecked(row,checked);
712: if (status == 'open' && getImage(row).match('closed')) {
713: row = getNextRowWithIndent(row, getIndent(row));
714: }
715: else {
716: row = getNextRow(row);
717: }
718: if (row != null) {
719: nextIndent = getIndent(row);
720: }
721: else {
722: nextIndent = indent;
723: }
724: }
725: }
726: if (!checked) {
727: var i = 0;
728: for (i=0;i<previousFolderRows.length;i++) {
729: setChecked(previousFolderRows[i], false);
730: }
731: }
732: }
733:
734: function getNextNote(row) {
735: var rowId = row.id;
736: var nextRowId = parseInt(rowId.substr(3,rowId.length))+1;
737: nextRowId = "note"+nextRowId;
738: var nextRow = document.getElementById(nextRowId);
739: return nextRow;
740: }
741:
742: function getNextRow(row) {
743: var rowId = row.id;
744: var nextRowId = parseInt(rowId.substr(3,rowId.length))+1;
745: nextRowId = "row"+nextRowId;
746: var nextRow = document.getElementById(nextRowId);
747: return nextRow;
748: }
749:
750: function getPreviousRow(row) {
751: var rowId = row.id;
752: var previousRowId = parseInt(rowId.substr(3,rowId.length))-1;
753: previousRowId = "row"+previousRowId;
754: var previousRow =document.getElementById(previousRowId);
755: return previousRow;
756: }
757:
758: function getIndent(row) {
759: var childPADD = document.getElementById(row.id.replace('row','padd'));
760: indent = childPADD.style.paddingLeft;
761: indent = parseInt(indent.substr(0,(indent.length-2)));
762:
763: if (getImage(row).match('link')) {
764: indent -= $indentConst;
765: }
766: return indent;
767: }
768:
769: function getNextRowWithIndent(row, indent) {
770: var nextRow = getNextRow(row);
771: if (nextRow != null) {
772: var nextIndent = getIndent(nextRow);
773: while (nextIndent >= indent) {
774: if (nextIndent == indent) {
775: return nextRow;
776: }
777: nextRow = getNextRow(nextRow);
778: if (nextRow == null) {
779: return null;
780: }
781: nextIndent = getIndent(nextRow);
782: }
783: }
784: return nextRow;
785: }
786:
787: function getImage(row) {
788: var childIMG = document.getElementById(row.id.replace('row','img'));
789: if ((childIMG.src).match('closed')) {
790: return 'closed';
791: }
792: else if ((childIMG.src).match('open')) {
793: return 'open;'
794: }
795: else {
796: return 'link';
797: }
798: }
799:
800: function setImage(row, status) {
801: var childIMG = document.getElementById(row.id.replace('row','img'));
802: var childIMGFolder = document.getElementById(row.id.replace('row','imgFolder'));
803: childIMG.src = "/adm/lonIcons/arrow."+status+".gif";
804: childIMGFolder.src="/adm/lonIcons/navmap.folder."+status+".gif";
805: }
806:
807: function getChecked(row) {
808: var childCHECK = document.getElementById(row.id.replace('row','check'));
809: var checked = childCHECK.checked;
810: return checked;
811: }
812:
813: function setChecked(row,checked) {
814: var childCHECK = document.getElementById(row.id.replace('row','check'));
815: if (!childCHECK.disabled) {
816: childCHECK.checked = checked;
817: }
818: }
819:
820: function getPreviousFolderRows(row) {
821: var previousRow = getPreviousRow(row);
822: var indent = getIndent(previousRow);
823: var kindOfEntry = getImage(previousRow);
824: var rows = new Array();
825: if (kindOfEntry != 'link') {
826: rows.push(previousRow);
827: }
828:
829: while (indent >0) {
830: previousRow = getPreviousRow(previousRow);
831: if (previousRow != null) {
832: indent = getIndent(previousRow);
833: kindOfEntry = getImage(previousRow);
834: if (kindOfEntry != 'link') {
835: rows.push(previousRow);
836: }
837: }
838: else {
839: indent = 0;
840: }
841: }
842: return rows;
843: }
844:
845: function getDeepestRows() {
846: var row = document.getElementById('row0');
847: var firstRow = row;
848: var indent = getIndent(row);
849: var maxIndent = indent;
850: while (getNextRow(row) != null) {
851: row = getNextRow(row);
852: indent = getIndent(row);
853: if (indent>maxIndent && !((row.className).match('LC_hidden'))) {
854: maxIndent = indent;
855: }
856: }
857: var deepestRows = new Array();
858: row = firstRow;
859: var rowIndent;
860: while (getNextRow(row) != null) {
861: rowIndent = getIndent(row);
862: if (rowIndent == maxIndent) {
863: deepestRows.push(row);
864: }
865: row = getNextRow(row);
866: }
867: rowIndent = getIndent(row);
868: if (rowIndent == maxIndent) {
869: deepestRows.push(row);
870: }
871: return deepestRows;
872: }
873:
874: function getOtherRows(deepestRows) {
875: var row = document.getElementById('row0');
876: var otherRows = new Array();
877: var isIn = false;
878: while (getNextRow(row) != null) {
879: var i = 0;
880: for (i=0; i < deepestRows.length; i++) {
881: if (row.id == deepestRows[i].id) {
882: isIn = true;
883: }
884: }
885: if (!isIn) {
886: otherRows.push(row);
887: }
888: row = getNextRow(row);
889: isIn = false;
890: }
891: for (i=0; i < deepestRows.length; i++) {
892: if (row.id == deepestRows[i].id) {
893: isIn = true;
894: }
895: }
896: if (!isIn) {
897: otherRows.push(row);
898: }
899: return otherRows;
900: }
901:
902: function setDisplaySelect(deepestRows, displ) {
903: var i = 0;
904: for (i = 0; i < deepestRows.length; i++) {
905: var row = deepestRows[i];
906: var childSEL = document.getElementById(row.id.replace('row','sel'));
907: childSEL.className = displ;
908: }
909: }
910:
911: function submitSelect() {
912: var list = document.getElementsByName('list')[0];
913: list.setAttribute("action","/adm/wishlist?mode=edit");
914: list.submit();
915: }
916:
917: function setDisplayNote(rowid, displ) {
918: var row = document.getElementById(rowid);
919: if (!displ) {
920: if ((row.className).match('LC_hidden')) {
921: row.className = (row.className).replace('LC_hidden','');
922: }
923: else {
924: var oldClass = row.className;
925: row.className = oldClass+' LC_hidden';
926: }
927: }
928: else {
929: if (displ == '') {
930: row.className = (row.className).replace('LC_hidden','');
931: }
932: else if (displ != '' && !((row.className).match('LC_hidden'))) {
933: var oldClass = row.className;
934: row.className = oldClass+' LC_hidden';
935: }
936: }
937: var noteText = document.getElementById(rowid.replace('note','noteText'));
938: var noteImg = document.getElementById(rowid.replace('note','noteImg'));
939: if (noteText.value) {
940: noteImg.src = "/res/adm/pages/anot2.png";
941: }
942: else {
943: noteImg.src = "/res/adm/pages/anot.png";
944: }
945:
946: }
947:
948: function setClasses() {
949: var row = document.getElementById("row0");
950: var note = document.getElementById("note0");
951: var LC_class = 0;
952: if (getNextRow(row) != null) {
953: while (getNextRow(row) != null) {
954: if (!(row.className).match('LC_hidden')) {
955: note.className = (note.className).replace('LC_even_row','');
956: note.className = (note.className).replace('LC_odd_row','');
957: if (LC_class) {
958: row.className = 'LC_even_row';
959: note.className = 'LC_even_row'+note.className;
960: }
961: else {
962: row.className = 'LC_odd_row';
963: note.className = 'LC_odd_row'+note.className;;
964: }
965: LC_class = !LC_class;
966: }
967: note = getNextNote(row);
968: row = getNextRow(row);
969: }
970: }
971: if (!(row.className).match('LC_hidden')) {
972: note.className = (note.className).replace('LC_even_row','');
973: note.className = (note.className).replace('LC_odd_row','');
974: if (LC_class) {
975: row.className = 'LC_even_row';
976: note.className = 'LC_even_row'+note.className;
977: }
978: else {
979: row.className = 'LC_odd_row';
980: note.className = 'LC_odd_row'+note.className;
981: }
982: }
983: }
984:
985: function selectDestinationFolder(mode) {
986: var mark = document.getElementsByName('mark');
987: var i = 0;
988: for (i = 0; i < mark.length; i++) {
989: if (mark[i].checked) {
990: document.getElementsByName('list')[0].submit();
991: return true;
992: }
993: }
994: if (mode == 'move') {
995: alert('$warningMoveS');
996: }
997: else {
998: alert('$warningMoveD');
999: }
1000: return false;
1001: }
1002:
1003: function preview(url) {
1004: var newWin;
1005: if (!(url.match(/^http:\\/\\//) || url.match(/^https:\\/\\//))) {
1006: newWin = window.open(url+'?inhibitmenu=yes','preview','width=560,height=350,scrollbars=yes');
1007: }
1008: else {
1009: newWin = window.open(url,'preview','width=560,height=350,scrollbars=yes');
1010: }
1011: newWin.focus();
1012: }
1013:
1014: function checkAll() {
1015: var checkboxes = document.getElementsByName('check');
1016: for (var i = 0; i < checkboxes.length; i++) {
1017: if (!checkboxes[i].disabled) {
1018: checkboxes[i].checked = "checked";
1019: }
1020: }
1021: }
1022:
1023: function uncheckAll() {
1024: var checkboxes = document.getElementsByName('check');
1025: for (var i = 0; i < checkboxes.length; i++) {
1026: if (!checkboxes[i].disabled) {
1027: checkboxes[i].checked = "";
1028: }
1029: }
1030: }
1031:
1032: JAVASCRIPT
1033: return $js;
1034: }
1035:
1036: sub JSforImport{
1037: my $rat = shift;
1038:
1039: my $js;
1040: if ($rat eq 'simple' || $rat eq '') {
1041: $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
1042: function finish_import() {
1043: opener.document.forms.simpleedit.importdetail.value='';
1044: for (var num = 0; num < document.forms.groupsort.fnum.value; num++) {
1045: try {
1046: eval("document.forms.groupsort.filelink"+num+".value");
1047: }
1048: catch(err) {
1049: continue;
1050: }
1051: if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
1052: opener.document.forms.simpleedit.importdetail.value+='&'+
1053: eval("document.forms.groupsort.title"+num+".value")+'='+
1054: eval("document.forms.groupsort.filelink"+num+".value")+'='+
1055: eval("document.forms.groupsort.id"+num+".value");
1056: }
1057: }
1058: opener.document.forms.simpleedit.submit();
1059: self.close();
1060: }
1061: JAVASCRIPT
1062: }
1063: else {
1064: $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
1065: function finish_import() {
1066: var linkflag=false;
1067: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
1068: if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
1069: insertRowInLastRow();
1070: placeResourceInLastRow(
1071: eval("document.forms.groupsort.title"+num+".value"),
1072: eval("document.forms.groupsort.filelink"+num+".value"),
1073: eval("document.forms.groupsort.id"+num+".value"),
1074: linkflag
1075: );
1076: linkflag=true;
1077: }
1078: }
1079: opener.editmode=0;
1080: opener.notclear=0;
1081: opener.linkmode=0;
1082: opener.draw();
1083: self.close();
1084: }
1085:
1086: function insertRowInLastRow() {
1087: opener.insertrow(opener.maxrow);
1088: opener.addobj(opener.maxrow,'e&2');
1089: }
1090:
1091: function placeResourceInLastRow (title,url,id,linkflag) {
1092: opener.mostrecent=opener.newresource(opener.maxrow,2,opener.unescape(title),
1093: opener.unescape(url),'false','normal',id);
1094: opener.save();
1095: if (linkflag) {
1096: opener.joinres(opener.linkmode,opener.mostrecent,0);
1097: }
1098: opener.linkmode=opener.mostrecent;
1099: }
1100: JAVASCRIPT
1101: }
1102: return $js;
1103: }
1104:
1105: # HTML-Markup for table if in view-mode
1106: my $wishlistHTMLview;
1107: my $indent_view = $indentConst;
1108: sub wishlistView {
1109: my $nodes = shift;
1110:
1111: foreach my $n (@$nodes) {
1112: my $index = $n->value()->nindex();
1113:
1114: # 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.
1115: # only display the top level entries on load
1116: $wishlistHTMLview .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1117: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1118:
1119:
1120: # checkboxes
1121: $wishlistHTMLview .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
1122: 'onclick="selectAction('."'row".$index."'".')" /></td>';
1123:
1124: # entry is a folder
1125: if ($n->value()->path() eq '') {
1126: $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_view-$indentConst)<0?0:($indent_view-$indentConst)).'px; min-width: 220px;">'.
1127: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
1128: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1129: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1130: $n->value()->title().'</a></td>';
1131: }
1132: # entry is a link
1133: else {
1134: my $quotable_link = &Apache::loncommon::escape_single($n->value()->path());
1135: $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_view-$indentConst)<=0?$indentConst:$indent_view).'px; min-width: 220px;">'.
1136: '<a href="javascript:preview('."'".$quotable_link."'".');">'.
1137: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
1138: $n->value()->title().'</a></td>';
1139: }
1140:
1141: # note-icon, different icons for an entries with note and those without
1142: my $noteIMG = 'anot.png';
1143:
1144: if ($n->value()->note() ne '') {
1145: $noteIMG = 'anot2.png';
1146: }
1147:
1148: $wishlistHTMLview .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1149: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1150: ' class="LC_icon"/></a></td>';
1151:
1152: $wishlistHTMLview .= &Apache::loncommon::end_data_table_row();
1153:
1154: # start row containing the textarea for the note, do not display note on default
1155: $wishlistHTMLview .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1156: '<td></td><td>'.
1157: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1158: 'name="newnote" >'.
1159: $n->value()->note().'</textarea></td><td></td>';
1160: $wishlistHTMLview .= &Apache::loncommon::end_data_table_row();
1161:
1162: # if the entry is a folder, it could have other entries as content. if it has, call wishlistView for those entries
1163: my @children = $n->children();
1164: if ($#children >=0) {
1165: $indent_view += 20;
1166: &wishlistView(\@children);
1167: $indent_view -= 20;
1168: }
1169: }
1170: }
1171:
1172:
1173: # HTML-Markup for table if in edit-mode
1174: my $wishlistHTMLedit;
1175: my $indent_edit = $indentConst;
1176: sub wishlistEdit {
1177: my $nodes = shift;
1178: my $curNode = 1;
1179:
1180: foreach my $n (@$nodes) {
1181: my $index = $n->value()->nindex();
1182:
1183: # start row, use data_table routines to set class to LC_even or LC_odd automatically.
1184: # this rows contains a checkbox, a select-field for sorting entries, the title in an input-field and the note-icon.
1185: # only display the top level entries on load
1186: $wishlistHTMLedit .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1187: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1188:
1189: # checkboxes
1190: $wishlistHTMLedit .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
1191: 'onclick="selectAction('."'row".$index."'".')" /></td>';
1192:
1193: # 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.
1194: # set the number for the current entry into brackets
1195: my $options;
1196: for (my $i = 1; $i < ((scalar @{$nodes})+1); $i++) {
1197: if ($i == $curNode) {
1198: $options .= '<option selected="selected" value="">('.$i.')</option>';
1199: }
1200: else {
1201: $options .= '<option value="'.$i.'">'.$i.'</option>';
1202: }
1203: }
1204: $curNode++;
1205:
1206: # entry is a folder
1207: if ($n->value()->path() eq '') {
1208: $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
1209: $options.'</select></td>'.
1210: '<td id="padd'.$index.'" style="padding-left:'.(($indent_edit-$indentConst)<0?0:($indent_edit-$indentConst)).'px;">'.
1211: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top" >'.
1212: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1213: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/></a>'.
1214: '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'" />'.
1215: '</td><td></td>';
1216:
1217: }
1218: # entry is a link
1219: else {
1220: $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
1221: $options.'</select></td>'.
1222: '<td id="padd'.$index.'" style="padding-left:'.(($indent_edit-$indentConst)<=0?$indentConst:$indent_edit).'px;">'.
1223: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
1224: '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'" /></td>'.
1225: '<td><input type="text" name="newpath" value="'.$n->value()->path().'" alt = "'.$n->value()->path().'" /></td>';
1226: }
1227:
1228: # note-icon, different icons for an entries with note and those without
1229: my $noteIMG = 'anot.png';
1230:
1231: if ($n->value()->note() ne '') {
1232: $noteIMG = 'anot2.png';
1233: }
1234:
1235: $wishlistHTMLedit .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1236: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1237: ' class="LC_icon"/></a></td>';
1238:
1239: $wishlistHTMLedit .= &Apache::loncommon::end_data_table_row();
1240:
1241: # start row containing the textarea for the note
1242: $wishlistHTMLedit .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1243: '<td></td><td></td><td colspan="2">'.
1244: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1245: 'name="newnote">'.
1246: $n->value()->note().'</textarea></td><td></td>';
1247: $wishlistHTMLedit .= &Apache::loncommon::end_data_table_row();
1248:
1249: # if the entry is a folder, it could have other entries as content. if it has, call wishlistEdit for those entries
1250: my @children = $n->children();
1251: if ($#children >=0) {
1252: $indent_edit += 20;
1253: &wishlistEdit(\@children);
1254: $indent_edit -= 20;
1255: }
1256: }
1257: }
1258:
1259:
1260:
1261: # HTML-Markup for table if in move-mode
1262: my $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
1263: '<td>'.&mt('Top level').'</td><td></td></tr>';
1264: my $indent_move = $indentConst;
1265: sub wishlistMove {
1266: my $nodes = shift;
1267: my $marked = shift;
1268:
1269: foreach my $n (@$nodes) {
1270: my $index = $n->value()->nindex();
1271:
1272: #find out wether the current entry was marked to be moved.
1273: my $isIn = 0;
1274: foreach my $m (@$marked) {
1275: if ($index == $m) {
1276: $isIn = 1;
1277: }
1278: }
1279: # 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
1280: $wishlistHTMLmove .= &Apache::loncommon::start_data_table_row('','row'.$index);
1281:
1282:
1283: # entry is a folder
1284: if ($n->value()->path() eq '') {
1285: # display a radio-button, if the folder was not selected to be moved
1286: if (!$isIn) {
1287: $wishlistHTMLmove .= '<td><input type="radio" name="mark" id="radio'.$index.'" value="'.$index.'" /></td>'.
1288: '<td id="padd'.$index.'" style="padding-left:'.(($indent_move-$indentConst)<0?0:($indent_move-$indentConst)).'px; min-width: 220px;">';
1289: }
1290: # highlight the title, if the folder was selected to be moved
1291: else {
1292: $wishlistHTMLmove .= '<td></td>'.
1293: '<td id="padd'.$index.'" style="padding-left:'.(($indent_move-$indentConst)<0?0:($indent_move-$indentConst)).'px; min-width: 220px;'.
1294: 'color:red;">';
1295: }
1296: #arrow- and folder-image, all folders are open, and title
1297: $wishlistHTMLmove .= '<img src="/adm/lonIcons/arrow.open.gif" id="img'.$index.'" alt = "" />'.
1298: '<img src="/adm/lonIcons/navmap.folder.open.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1299: $n->value()->title().'</td>';
1300: }
1301: # entry is a link
1302: else {
1303: # higlight the title, if the link was selected to be moved
1304: my $highlight = '';
1305: if ($isIn) {
1306: $highlight = 'style="color:red;"';
1307: }
1308: # link-image and title
1309: my $quotable_link = &Apache::loncommon::escape_single($n->value()->path());
1310: $wishlistHTMLmove .= '<td></td>'.
1311: '<td id="padd'.$index.'" style="padding-left:'.(($indent_move-$indentConst)<=0?$indentConst:$indent_move).'px; min-width: 220px;">'.
1312: '<a href="javascript:preview('."'".$quotable_link."'".');" '.$highlight.'>'.
1313: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
1314: $n->value()->title().'</a></td>';
1315: }
1316:
1317: # note-icon, different icons for an entries with note and those without
1318: my $noteIMG = 'anot.png';
1319:
1320: if ($n->value()->note() ne '') {
1321: $noteIMG = 'anot2.png';
1322: }
1323:
1324: $wishlistHTMLmove .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1325: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1326: ' class="LC_icon"/></a></td>';
1327:
1328: $wishlistHTMLmove .= &Apache::loncommon::end_data_table_row();
1329:
1330: # start row containing the textarea for the note, readonly in move-mode
1331: $wishlistHTMLmove .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1332: '<td></td><td>'.
1333: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1334: 'name="newnote" readonly="readonly">'.
1335: $n->value()->note().'</textarea></td><td></td>'.
1336: &Apache::loncommon::end_data_table_row();
1337:
1338: # if the entry is a folder, it could have other entries as content. if it has, call wishlistMove for those entries
1339: my @children = $n->children();
1340: if ($#children >=0) {
1341: $indent_move += 20;
1342: &wishlistMove(\@children, $marked);
1343: $indent_move -= 20;
1344: }
1345: }
1346: }
1347:
1348:
1349:
1350: # HTML-Markup for table if in import-mode
1351: my $wishlistHTMLimport;
1352: my $indent_imp = $indentConst;
1353: my $form = 1;
1354: sub wishlistImport {
1355: my ($nodes,$numskipped) = @_;
1356:
1357: my ($is_community,%nopick);
1358: if ($env{'request.course.id'}) {
1359: if (&Apache::loncommon::course_type() eq 'Community') {
1360: $is_community = 1;
1361: }
1362: }
1363:
1364: foreach my $n (@$nodes) {
1365: my $index = $n->value()->nindex();
1366:
1367: #
1368: # Determine which resources in stored links may be imported into a course/community.
1369: # (a) Import of directories in /res space is not supported.
1370: # (b) Import of a resource into a community requires user has 'bro' privilege for resource
1371: # (i.e., user has author or co-author role for corresponcding Authoring Space).
1372: # (c) Import of a resource into a course requires user has 'be' privilege for resource.
1373: #
1374:
1375: if ($n->value()->path() =~ m{^(/res/$match_domain/$match_username/)}) {
1376: if ($n->value()->path() =~ m{/$}) {
1377: $nopick{$n->value()->path()} = $n->value()->title();
1378: $$numskipped ++;
1379: } else {
1380: if ($is_community) {
1381: unless (&Apache::lonnet::allowed('bro',$n->value()->path())) {
1382: $nopick{$n->value()->path()} = $n->value()->title();
1383: $$numskipped ++;
1384: }
1385: } else {
1386: unless (&Apache::lonnet::allowed('bre',$n->value()->path())) {
1387: $nopick{$n->value()->path()} = $n->value()->title();
1388: $$numskipped ++;
1389: }
1390: }
1391: }
1392: }
1393:
1394: # 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.
1395: # only display the top level entries on load
1396: $wishlistHTMLimport .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1397: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1398:
1399:
1400: # checkboxes
1401: $wishlistHTMLimport .= '<td>';
1402: my ($disabled,$onclick,$image,$style);
1403: if ($nopick{$n->value()->path()}) {
1404: $disabled = ' disabled="disabled"';
1405: $image = 'wishlist-link-lighter.png';
1406: $style = 'style="color:#808080;"';
1407: } else {
1408: $onclick = ' onclick="selectAction('."'row".$index."'".')"';
1409: $image = 'wishlist-link.png';
1410: }
1411: $wishlistHTMLimport .= '<input type="checkbox" name="check" id="check'.$index.'" value="'.$index.'" '.
1412: $disabled.$onclick.' />'.
1413: '<input type="hidden" name="title'.$index.'" value="'.&escape($n->value()->title()).'" />'.
1414: '<input type="hidden" name="filelink'.$index.'" value="'.&escape($n->value()->path()).'" />'.
1415: '<input type="hidden" name="id'.$index.'" />';
1416: $wishlistHTMLimport .= '</td>';
1417:
1418: # entry is a folder
1419: if ($n->value()->path() eq '') {
1420: $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_imp-$indentConst)<0?0:($indent_imp-$indentConst)).'px; min-width: 220px;">'.
1421: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
1422: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1423: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1424: $n->value()->title().'</a></td>';
1425: }
1426: # entry is a link
1427: else {
1428: $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_imp-$indentConst)<=0?$indentConst:$indent_imp).'px; min-width: 220px;">';
1429: unless ($nopick{$n->value()->path()}) {
1430: my $quotable_link = &Apache::loncommon::escape_single($n->value()->path());
1431: $wishlistHTMLimport .= '<a href="javascript:preview('."'".$quotable_link."'".');">';
1432: }
1433: $wishlistHTMLimport .= '<img src="/res/adm/pages/'.$image.'" id="img'.$index.'" alt="link" />'.
1434: '<span '.$style.'>'.$n->value()->title().'</span></a></td>';
1435: $form++;
1436: }
1437:
1438: # note-icon, different icons for an entries with note and those without
1439: my $noteIMG = 'anot.png';
1440:
1441: if ($n->value()->note() ne '') {
1442: $noteIMG = 'anot2.png';
1443: }
1444:
1445: $wishlistHTMLimport .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1446: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1447: ' class="LC_icon"/></a></td>';
1448:
1449: $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
1450:
1451: # start row containing the textarea for the note, do not display note on default, readonly in import-mode
1452: $wishlistHTMLimport .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1453: '<td></td><td>'.
1454: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1455: 'name="newnote" readonly="readonly">'.
1456: $n->value()->note().'</textarea></td><td></td>';
1457: $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
1458:
1459: # if the entry is a folder, it could have other entries as content. if it has, call wishlistImport for those entries
1460: my @children = $n->children();
1461: if ($#children >=0) {
1462: $indent_imp += 20;
1463: &wishlistImport(\@children,$numskipped);
1464: $indent_imp -= 20;
1465: }
1466: }
1467: return;
1468: }
1469:
1470: # Returns the HTML-Markup for wishlist
1471: sub makePage {
1472: my $rootgiven = shift;
1473: my $mode = shift;
1474: my $marked = shift;
1475:
1476: $root = $rootgiven;
1477: @childrenRt = $root->children();
1478:
1479: # breadcrumbs and start_page
1480: &Apache::lonhtmlcommon::clear_breadcrumbs();
1481: &Apache::lonhtmlcommon::add_breadcrumb(
1482: { href => '/adm/wishlist?mode='.$mode,
1483: text => 'Stored Links'});
1484: my $startPage = &Apache::loncommon::start_page('Stored Links',undef,
1485: {'add_entries' => {
1486: 'onload' => 'javascript:onLoadAction('."'".$mode."'".');',
1487: 'onunload' => 'javascript:window.name = '."'loncapaclient'"}});
1488:
1489: my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links'),'Wishlist');
1490:
1491: # get javascript-code for wishlist-interactions
1492: my $js = &JSforWishlist();
1493:
1494: # texthash for items in funtionlist
1495: my %lt = &Apache::lonlocal::texthash(
1496: 'ed' => 'Edit',
1497: 'vw' => 'View',
1498: 'al' => 'Add Link',
1499: 'af' => 'Add Folder',
1500: 'mv' => 'Move Selected',
1501: 'dl' => 'Delete Selected',
1502: 'sv' => 'Save');
1503:
1504: # start functionlist
1505: my $functions = &Apache::lonhtmlcommon::start_funclist();
1506:
1507: # icon for edit-mode, display when in view-mode
1508: if ($mode eq 'view') {
1509: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1510: 'onclick="setFormAction('."'save','edit'".');" class="LC_menubuttons_link">'.
1511: '<img src="/res/adm/pages/edit-mode-22x22.png" alt="'.$lt{'ed'}.'" '.
1512: 'title="'.$lt{'ed'}.'" class="LC_icon"/> '.
1513: '<span class="LC_menubuttons_inline_text">'.$lt{'ed'}.'</span></a>');
1514: }
1515: # icon for view-mode, display when in edit-mode
1516: else {
1517: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1518: 'onclick="setFormAction('."'save','view'".');" class="LC_menubuttons_link">'.
1519: '<img src="/res/adm/pages/view-mode-22x22.png" alt="'.$lt{'vw'}.'" '.
1520: 'title="'.$lt{'vw'}.'" class="LC_icon"/> '.
1521: '<span class="LC_menubuttons_inline_text">'.$lt{'vw'}.'</span></a>');
1522: }
1523:
1524: # icon for adding a new link
1525: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1526: 'onclick="newLink();" class="LC_menubuttons_link">'.
1527: '<img src="/res/adm/pages/link-new-22x22.png" alt="'.$lt{'al'}.'" '.
1528: 'title="'.$lt{'al'}.'" class="LC_icon"/>'.
1529: '<span class="LC_menubuttons_inline_text">'.$lt{'al'}.'</span></a>');
1530:
1531: # icon for adding a new folder
1532: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1533: 'onclick="newFolder();" class="LC_menubuttons_link">'.
1534: '<img src="/res/adm/pages/folder-new-22x22.png" alt="'.$lt{'af'}.'" '.
1535: 'title="'.$lt{'af'}.'" class="LC_icon"/>'.
1536: '<span class="LC_menubuttons_inline_text">'.$lt{'af'}.'</span></a>');
1537:
1538: # icon for moving entries
1539: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1540: 'onclick="setFormAction('."'move','move'".'); " class="LC_menubuttons_link">'.
1541: '<img src="/res/adm/pages/move-22x22.png" alt="'.$lt{'mv'}.'" '.
1542: 'title="'.$lt{'mv'}.'" class="LC_icon" />'.
1543: '<span class="LC_menubuttons_inline_text">'.$lt{'mv'}.'</span></a>');
1544:
1545: # icon for deleting entries
1546: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1547: 'onclick="setFormAction('."'delete','".$mode."'".'); " class="LC_menubuttons_link">'.
1548: '<img src="/res/adm/pages/del.png" alt="'.$lt{'dl'}.'" '.
1549: 'title="'.$lt{'dl'}.'" class="LC_icon" />'.
1550: '<span class="LC_menubuttons_inline_text">'.$lt{'dl'}.'</span></a>');
1551:
1552: # icon for saving changes
1553: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1554: 'onclick="setFormAction('."'saveOK','".$mode."'".'); " class="LC_menubuttons_link">'.
1555: '<img src="/res/adm/pages/save-22x22.png" alt="'.$lt{'sv'}.'" '.
1556: 'title="'.$lt{'sv'}.'" class="LC_icon" />'.
1557: '<span class="LC_menubuttons_inline_text">'.$lt{'sv'}.'</span></a>');
1558:
1559: # end funtionlist and generate subbox
1560: $functions.= &Apache::lonhtmlcommon::end_funclist();
1561: my $subbox = &Apache::loncommon::head_subbox($functions);
1562:
1563: # start form
1564: my $inner .= '<form name="list" action ="/adm/wishlist" method="post">'.
1565: '<input type="hidden" id="action" name="action" value="" />';
1566:
1567: # only display subbox in view- or edit-mode
1568: if ($mode eq 'view' || $mode eq 'edit') {
1569: $inner .= $subbox;
1570: }
1571:
1572: # generate table-content depending on mode
1573: if ($mode eq 'edit') {
1574: &wishlistEdit(\@childrenRt);
1575: if ($wishlistHTMLedit ne '') {
1576: $inner .= &Apache::loncommon::start_data_table("LC_tableOfContent");
1577: $inner .= $wishlistHTMLedit;
1578: $inner .= &Apache::loncommon::end_data_table();
1579: }
1580: else {
1581: $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
1582: }
1583: $wishlistHTMLedit = '';
1584: }
1585: elsif ($mode eq 'view') {
1586: &wishlistView(\@childrenRt);
1587: if ($wishlistHTMLview ne '') {
1588: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLview.'</table>';
1589: }
1590: else {
1591: $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
1592: }
1593: $wishlistHTMLview = '';
1594: }
1595: else {
1596: my $markStr = '';
1597: foreach my $m (@$marked) {
1598: $markStr .= $m.',';
1599: }
1600: if ($markStr) {
1601: $markStr = substr($markStr, 0, length($markStr)-1);
1602: $inner .= '<input type="hidden" value="'.$markStr.'" name="markedToMove" />';
1603: $inner .= '<p><span class="LC_info">'.&mt('You have selected the red marked entries to be moved to another folder. '.
1604: 'Now choose the new destination folder.').'</span></p>';
1605: &wishlistMove(\@childrenRt, $marked);
1606: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLmove.'</table><br/><br/>';
1607: $inner .= '<input type="button" value="'.&mt('Move').'" onclick="setFormAction('."'move','view'".');" />'.
1608: '<input type="button" value="'.&mt('Cancel').'" onclick="go('."'/adm/wishlist'".')" />';
1609:
1610: $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
1611: '<td>'.&mt('Top level').'</td><td></td></tr>';
1612: }
1613: else {
1614: $inner .= '<p><span class="LC_info">'.&mt("You haven't marked any entry to move.").'</span></p>'.
1615: '<input type="button" value="'.&mt('Back').'" onclick="go('."'/adm/wishlist'".')" />';
1616: }
1617: }
1618:
1619: # end form
1620: $inner .= '</form>';
1621:
1622: # end_page
1623: my $endPage = &Apache::loncommon::end_page();
1624:
1625: # put all page-elements together
1626: my $page = $startPage.$breadcrumbs.$js.$inner.$endPage;
1627:
1628: return $page;
1629: }
1630:
1631:
1632: # Returns the HTML-Markup for the PopUp, shown when a new link should set, when NOT
1633: # beeing in the wishlist-interface (method is called in lonmenu and lonsearchcat)
1634: sub makePopUpNewLink {
1635: my ($title, $path) = @_;
1636:
1637: # Get all existing folders to offer posibility to set a new link
1638: # into a folder
1639: my %TreeHashLink = &Apache::lonwishlist::getWishlist();
1640: my $rootLink = &Apache::Tree::HashToTree(\%TreeHashLink);
1641: my @childrenRtLink = $rootLink->children();
1642:
1643: $foldersOption = '';
1644: @allFolders = ();
1645: &getFoldersToArray(\@childrenRtLink);
1646: &getFoldersForOption(\@childrenRtLink);
1647:
1648: my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>'.$foldersOption;
1649: $foldersOption = '';
1650: @allFolders = ();
1651:
1652: # HTML-Markup for the Pop-Up-window 'Set a link for this resource to wishlist'
1653: my $startPageWishlistlink =
1654: &Apache::loncommon::start_page('Save to Stored Links',undef,
1655: {'only_body' => 1,
1656: 'bgcolor' => '#FFFFFF',});
1657:
1658: my $warningLink = &mt('You must insert a title!');
1659: my $warningLinkNotAllowed1 =
1660: &mt('You can only insert links to LON-CAPA resources from the resource-pool'.
1661: ' or to external websites.'.
1662: ' Paths to LON-CAPA resources must be of the form /res/domain/user/...'.
1663: ' Paths to external websites must contain the network protocol, e.g. http://...');
1664:
1665: my $inPageWishlistlink1 = '<h1>'.&mt('Save to Stored Links').'</h1>';
1666: # If no title is delivered, 'New Link' is called up from the wishlist-interface, so after
1667: # submitting the window should close instead of offering a link to wishlist (like it should do
1668: # if we call 'Set New Link' from within a browsed ressource)
1669: if (!$title) {
1670: $inPageWishlistlink1 .= '<form method="post" name="newlink" action="/adm/wishlist" target="wishlist"'.
1671: 'onsubmit="return newlinksubmit();" >';
1672: }
1673: else {
1674: $inPageWishlistlink1 .= '<form method="post" name="newlink" action="/adm/wishlist?mode=set" '.
1675: 'onsubmit="return newlinksubmit();" >';
1676: }
1677: $inPageWishlistlink1 .= &Apache::lonhtmlcommon::start_pick_box().
1678: &Apache::lonhtmlcommon::row_title(&mt('Link Title'));
1679:
1680: my $inPageWishlistlink2 = &Apache::lonhtmlcommon::row_closure().
1681: &Apache::lonhtmlcommon::row_title(&mt('Path'));
1682:
1683: my $inPageWishlistlink3 = &Apache::lonhtmlcommon::row_closure().
1684: &Apache::lonhtmlcommon::row_title(&mt('Note')).
1685: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea>'.
1686: &Apache::lonhtmlcommon::row_closure(1).
1687: &Apache::lonhtmlcommon::end_pick_box().
1688: '<br/><br/>'.
1689: '<input type="submit" value="'.&mt('Save in').'" />'.
1690: '<select name="folders">'.
1691: $options.
1692: '</select>'.
1693: '<input type="button" value="'.&mt('Cancel').'" onclick="javascript:window.close();" />'.
1694: '</form>';
1695: $options = '';
1696:
1697: my $endPageWishlistlink = &Apache::loncommon::end_page();
1698:
1699: my $popUp = $startPageWishlistlink.
1700: $inPageWishlistlink1.
1701: '<input type="text" name="title" size="45" value="" />'.
1702: $inPageWishlistlink2.
1703: '<input type="text" name="path" size="45" value="" />'.
1704: $inPageWishlistlink3;
1705:
1706: # JavaScript-function to set title and path of ressource automatically
1707: # and show warning, if no title was set or path is invalid
1708: $popUp .= <<SCRIPT;
1709: <script type="text\/javascript">
1710: document.getElementsByName("title")[0].value = '$title';
1711: document.getElementsByName("path")[0].value = '$path';
1712: var fromwishlist = false;
1713: var titleget = '$title';
1714: if (!titleget) {
1715: fromwishlist = true;
1716: }
1717: function newlinksubmit(){
1718: var title = document.getElementsByName("title")[0].value;
1719: var path = document.getElementsByName("path")[0].value;
1720: if (!title) {
1721: alert("$warningLink");
1722: return false;}
1723: var linkOK = (path.match(/\^http:(\\\/\\\/)/) || path.match(/\^https:(\\\/\\\/)/))
1724: && !(path.match(/\\.problem/) || path.match(/\\.exam/)
1725: || path.match(/\\.quiz/) || path.match(/\\.assess/)
1726: || path.match(/\\.survey/) || path.match(/\\.form/)
1727: || path.match(/\\.library/) || path.match(/\\.page/)
1728: || path.match(/\\.sequence/));
1729: if (!path.match(/\^(\\\/res\\\/)/) && !linkOK) {
1730: alert("$warningLinkNotAllowed1");
1731: return false;}
1732: if (fromwishlist) {
1733: window.close();
1734: }
1735: return true;}
1736: <\/script>
1737: SCRIPT
1738:
1739: $popUp .= $endPageWishlistlink;
1740:
1741: return $popUp;
1742: }
1743:
1744: sub makePopUpNewFolder {
1745: # Get all existing folders to offer posibility to create a new folder
1746: # into an existing folder
1747: my %TreeHashLink = &Apache::lonwishlist::getWishlist();
1748: my $rootLink = &Apache::Tree::HashToTree(\%TreeHashLink);
1749: my @childrenRtLink = $rootLink->children();
1750:
1751: $foldersOption = '';
1752: @allFolders = ();
1753: &getFoldersToArray(\@childrenRtLink);
1754: &getFoldersForOption(\@childrenRtLink);
1755:
1756: my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>'.$foldersOption;
1757: $foldersOption = '';
1758: @allFolders = ();
1759:
1760: # HTML-Markup for the Pop-Up-window 'New Folder'
1761: my $startPageWishlistfolder =
1762: &Apache::loncommon::start_page('New Folder',undef,
1763: {'only_body' => 1,
1764: 'bgcolor' => '#FFFFFF',});
1765:
1766: my $warningFolder = &mt('You must insert a title!');
1767:
1768:
1769: my $inPageNewFolder = '<h1>'.&mt('New Folder').'</h1>'.
1770: '<form method="post" name="newfolder" action="/adm/wishlist" target="wishlist" '.
1771: 'onsubmit="return newfoldersubmit();" >'.
1772: &Apache::lonhtmlcommon::start_pick_box().
1773: &Apache::lonhtmlcommon::row_title(&mt('Folder title')).
1774: '<input type="text" name="title" size="45" value="" /><br />'.
1775: &Apache::lonhtmlcommon::row_closure().
1776: &Apache::lonhtmlcommon::row_title(&mt('Note')).
1777: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea><br />'.
1778: &Apache::lonhtmlcommon::row_closure(1).
1779: &Apache::lonhtmlcommon::end_pick_box().
1780: '<br/><br/>'.
1781: '<input type="submit" value="'.&mt('Save in').'" />'.
1782: '<select name="folders">'.
1783: $options.
1784: '</select>'.
1785: '<input type="button" value="'.&mt('Cancel').'" onclick="javascript:window.close();" />'.
1786: '</form>';
1787: my $endPageWishlistfolder = &Apache::loncommon::end_page();
1788:
1789: my $popUp = $startPageWishlistfolder.
1790: $inPageNewFolder;
1791:
1792: $popUp .= <<SCRIPT;
1793: <script type="text\/javascript">
1794: function newfoldersubmit(){
1795: var title = document.getElementsByName("title")[0].value;
1796: if (!title) {
1797: alert("$warningFolder");
1798: return false;}
1799: else {
1800: window.close();
1801: return true;}}
1802: <\/script>
1803: SCRIPT
1804:
1805: $popUp .= $endPageWishlistfolder;
1806:
1807: return $popUp;
1808: }
1809:
1810: # Returns the HTML-Markup for the page, shown when a link was set
1811: sub makePageSet {
1812: my $title = 'Stored Links';
1813:
1814: # start_page
1815: my $output =
1816: &Apache::loncommon::start_page($title,undef,
1817: {'only_body' => 1})
1818: .'<h1>'.&mt($title).'</h1>';
1819:
1820: # confirm success and offer link to wishlist
1821: $output .=
1822: &Apache::loncommon::confirmwrapper(
1823: &Apache::lonhtmlcommon::confirm_success(
1824: &mt('Link successfully saved!')))
1825: .&Apache::lonhtmlcommon::actionbox(
1826: ['<a href="javascript:;" onclick="opener.open('."'/adm/wishlist'".');window.close();">'.&mt('Go to Stored Links').'</a>',
1827: '<a href="javascript:;" onclick="window.close();">'.&mt('Close this window').'</a>'
1828: ]);
1829:
1830: # end_page
1831: $output .= &Apache::loncommon::end_page();
1832:
1833: return $output;
1834: }
1835:
1836:
1837: # Returns the HTML-Markup for the page, shown when links should be imported into a course
1838: sub makePageImport {
1839: my $rootgiven = shift;
1840: my $rat = shift;
1841:
1842: $root = $rootgiven;
1843: @childrenRt = $root->children();
1844: # start_page
1845: my $startPage = &Apache::loncommon::start_page('Stored Links',undef,
1846: {'only_body' => 1});
1847:
1848: # get javascript-code for wishlist-interactions
1849: my $js = &JSforWishlist();
1850: $js .= &JSforImport($rat);
1851:
1852: my $inner = '<h1>'.&mt('Import Resources from Stored Links').'</h1>';
1853: if (!$rat) {
1854: $inner .=
1855: '<ul>'.
1856: '<li class="LC_info">'.&mt('Use the checkboxes corresponding to a folder to '.
1857: 'easily check all links within the folder.').'</li>'.
1858: '<li class="LC_info">'.&mt('The folder structure itself cannot be imported.').'</li>'.
1859: '<li class="LC_info">'.&mt('All checked links will be imported into the current folder of your course.').'</li>'.
1860: '</ul>';
1861: }
1862: else {
1863: $inner .=
1864: '<ul>'.
1865: '<li class="LC_info">'.&mt('Use the checkboxes corresponding to a folder to '.
1866: 'easily check all links within this folder.').'</li>'.
1867: '<li class="LC_info">'.&mt('The folder structure itself cannot be imported.').'</li>'.
1868: '</ul>';
1869: }
1870: my %wishlist = &getWishlist();
1871:
1872: #FIXME Saved string containing all folders in wishlist.db-file (key 'folders') in first version of lonwishlist
1873: #After splitting lonwishlist into two modules, this is not necessary anymore. So, dependent from when the wishlist
1874: #was first called (i.e. when wishlist.db was created), there might be an entry 'folders' or not. Number of links in
1875: #wishlist.db depends on whether this entry exists or not...JW
1876: my $fnum;
1877: if (defined $wishlist{'folders'}) {
1878: $fnum = (keys(%wishlist))-2;
1879: }
1880: else {
1881: $fnum = (keys(%wishlist))-1;
1882: }
1883:
1884: $inner .= '<form method="post" name="groupsort" action="">'.
1885: '<input type="hidden" value="'.$fnum.'" name="fnum" />'.
1886: '<input type="button" onclick="javascript:checkAll()" id="checkallbutton" value="'.&mt('Check All').'" />'.
1887: '<input type="button" onclick="javascript:uncheckAll()" id="uncheckallbutton" value="'.&mt('Uncheck All').'" />'.
1888: '<input type="button" value="'.&mt('Import Checked').'" onclick="finish_import();" />'.
1889: '<input type="button" value="'.&mt('Cancel').'" onclick="window.close();" /><br/><br/>';
1890:
1891:
1892: # wishlist-table
1893: my $numskipped = 0;
1894: &wishlistImport(\@childrenRt,\$numskipped);
1895: if ($wishlistHTMLimport ne '') {
1896: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLimport.'</table>';
1897: }
1898: else {
1899: $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
1900: }
1901: if ($numskipped > 0) {
1902: $inner .= '<p class="LC_info">'.&mt('Note: where a Stored Link is unavailable for import in the current context it is grayed out.').'</p>';
1903: }
1904: $wishlistHTMLimport = '';
1905:
1906: $inner .= '</form>';
1907:
1908: # end_page
1909: my $endPage = &Apache::loncommon::end_page();
1910:
1911: # put all page-elements together
1912: my $page = $startPage.$js.$inner.$endPage;
1913:
1914: return $page;
1915: }
1916:
1917:
1918: # Returns the HTML-Markup for error-page
1919: sub makeErrorPage {
1920: # breadcrumbs and start_page
1921: &Apache::lonhtmlcommon::add_breadcrumb(
1922: { href => '/adm/wishlist',
1923: text => 'Stored Links'});
1924: my $startPage = &Apache::loncommon::start_page('Stored Links');
1925:
1926: my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links'),'Wishlist');
1927: &Apache::lonhtmlcommon::clear_breadcrumbs();
1928:
1929: # error-message
1930: my $inner .= '<p class="LC_error">'.&mt('An error occurred! Please try again later.').'</p>';
1931:
1932: # end_page
1933: my $endPage = &Apache::loncommon::end_page();
1934:
1935: # put all page-elements together
1936: my $page = $startPage.$breadcrumbs.$inner.$endPage;
1937:
1938: return $page;
1939: }
1940:
1941:
1942: # ----------------------------------------------------- package Tree
1943: # Extend CPAN-Module Tree by function like 'moveNode' or 'deleteNode'
1944: package Apache::Tree;
1945:
1946: =pod
1947:
1948: =head2 Routines from package Tree
1949:
1950: =over 4
1951:
1952: =item * &getNodeByIndex(index, nodes)
1953:
1954: Searches for a node, specified by the index, in nodes (reference to array) and returns it.
1955:
1956:
1957: =item * &moveNode(node, at, newParent)
1958:
1959: 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).
1960:
1961:
1962: =item * &removeNode(node)
1963:
1964: Removes a node given by node from the tree.
1965:
1966:
1967: =item * &TreeIndex(children)
1968:
1969: Sets an index for every node in the tree, beginning with 0.
1970: 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).
1971:
1972:
1973: =item * &setCountZero()
1974:
1975: Resets index counter.
1976:
1977:
1978: =item * &RootToHash(childrenRt)
1979:
1980: Converts the root-node to a hash-entry: the key is root and values are just the indices of root's children.
1981:
1982:
1983: =item * &TreeToHash(childrenRt)
1984:
1985: 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).
1986: 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).
1987:
1988:
1989: =item * &HashToTree()
1990:
1991: 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.
1992:
1993:
1994: =item * &buildTree(node, childrenIn, TreeNodes, TreeHash)
1995:
1996: Joins the nodes to a tree.
1997: 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).
1998:
1999:
2000: =back
2001:
2002: =cut
2003:
2004:
2005: # returns the node with a given index from a list of nodes
2006: sub getNodeByIndex {
2007: my $index = shift;
2008: my $nodes = shift;
2009: my $found;
2010:
2011: foreach my $n (@$nodes) {
2012: my $curIndex = $n->value()->nindex();
2013: if ($curIndex == $index) {
2014: $found = $n;
2015: }
2016: }
2017: return $found;
2018: }
2019:
2020: # moves a given node to a new parent or change the position from a node
2021: # within its siblings (sorting)
2022: sub moveNode {
2023: my $node = shift;
2024: my $at = shift;
2025: my $newParent = shift;
2026:
2027:
2028: if (!$newParent) {
2029: $newParent = $node->parent();
2030: }
2031:
2032: $node->parent()->remove_child($node);
2033:
2034: if (defined $at) {
2035: $newParent->add_child({at => $at},$node);
2036: }
2037: else {
2038: $newParent->add_child($node);
2039: }
2040:
2041: # updating root's children
2042: @childrenRt = $root->children();
2043: }
2044:
2045: # removes a given node
2046: sub removeNode() {
2047: my $node = shift;
2048: my @children = $node->children();
2049:
2050: if ($#children >= 0) {
2051: foreach my $c (@children) {
2052: &removeNode($c);
2053: }
2054: }
2055: $node->parent()->remove_child($node);
2056:
2057: # updating root's children
2058: @childrenRt = $root->children();
2059: }
2060:
2061:
2062: # set an index for every node in the tree, beginning with 0
2063: my $count = 0;
2064: sub TreeIndex {
2065: my $children = shift;
2066:
2067: foreach my $n (@$children) {
2068: my @children = $n->children();
2069: $n->value()->nindex($count);$count++;
2070:
2071: if ($#children>=0) {
2072: &TreeIndex(\@children);
2073: }
2074: }
2075: }
2076:
2077: # reset index counter
2078: sub setCountZero {
2079: $count = 0;
2080: }
2081:
2082:
2083: # convert the tree to a hash
2084: # each node is one hash-entry
2085: # keys are the indices, values are all other attributes
2086: # (containing tile, path, note, date and indices for all direct children)
2087: # except for root: the key is root and values are
2088: # just the indices of root's children
2089: sub RootToHash {
2090: my $childrenRt = shift;
2091: my @indexarr = ();
2092:
2093: foreach my $c (@$childrenRt) {
2094: push (@indexarr, $c->value()->nindex());
2095: }
2096: $TreeToHash{'root'} = [@indexarr];
2097: }
2098:
2099: sub TreeToHash {
2100: my $childrenRt = shift;
2101:
2102: foreach my $n (@$childrenRt) {
2103: my @arrtmp = ();
2104: $arrtmp[0] = $n->value()->title();
2105: $arrtmp[1] = $n->value()->path();
2106: $arrtmp[2] = $n->value()->note();
2107: $arrtmp[3] = $n->value()->date();
2108: my @childrenRt = $n->children();
2109: my $co = 4;
2110: foreach my $c (@childrenRt) {
2111: my $i = $c->value()->nindex();
2112: $arrtmp[$co] = $i;
2113: $co++;
2114: }
2115: $TreeToHash{$n->value()->nindex} = [ @arrtmp];
2116: if ($#childrenRt>=0) {
2117: &TreeToHash(\@childrenRt);
2118: }
2119: }
2120: }
2121:
2122:
2123: # convert the hash to a tree
2124: # build a tree-object for each entry in the hash
2125: # afterwards call &buildTree to connect the tree-objects
2126: sub HashToTree {
2127: my $TreeHash = shift;
2128: my @TreeNodes = ();
2129: my $root;
2130:
2131: foreach my $key (keys(%$TreeHash)) {
2132: if ($key eq 'root') {
2133: $root = Tree->new("root");
2134: }
2135: elsif ($key ne 'folders') {
2136: my @attributes = @{ $$TreeHash{$key} };
2137: my $tmpNode;
2138: $tmpNode = Tree->new(Entry->new(title=>$attributes[0],
2139: path=>$attributes[1],
2140: note=>$attributes[2],
2141: date=>$attributes[3],
2142: nindex=>$key));
2143: push(@TreeNodes, $tmpNode);
2144: # shift all attributes except for
2145: # the indices representing the children of a node
2146: shift(@attributes);
2147: shift(@attributes);
2148: shift(@attributes);
2149: shift(@attributes);
2150: $$TreeHash{$key} = [ @attributes ];
2151: }
2152: }
2153: # if there are nodes, build up the tree-structure
2154: if (defined $$TreeHash{'root'} && $$TreeHash{'root'} ne '') {
2155: my @childrenRtIn = @{ $$TreeHash{'root'} };
2156: &buildTree(\$root, \@childrenRtIn,\@TreeNodes,$TreeHash);
2157: }
2158: return $root;
2159: }
2160:
2161:
2162: # join the nodes to a tree
2163: sub buildTree {
2164: my ($node, $childrenIn, $TreeNodes, $TreeHash) = @_;
2165: bless($node, 'Tree');
2166: foreach my $c (@$childrenIn) {
2167: my $tmpNode = &getNodeByIndex($c,$TreeNodes);
2168: $$node->add_child($tmpNode);
2169: my @childrenIn = @{ $$TreeHash{$tmpNode->value()->nindex()} };
2170: &buildTree(\$tmpNode,\@childrenIn,$TreeNodes,$TreeHash);
2171: }
2172:
2173: }
2174:
2175:
2176: # ----------------------------------------------------- package Entry
2177: # package that defines the entrys a wishlist could have
2178: # i.e. folders and links
2179: package Entry;
2180:
2181: # constructor
2182: sub new {
2183: my $invocant = shift;
2184: my $class = ref($invocant) || $invocant;
2185: my $self = { @_ }; #set attributes
2186: bless($self, $class);
2187: return $self;
2188: }
2189:
2190: # getter and setter
2191: sub title {
2192: my $self = shift;
2193: if ( @_ ) { $self->{title} = shift}
2194: return $self->{title};
2195: }
2196:
2197: sub date {
2198: my $self = shift;
2199: if ( @_ ) { $self->{date} = shift}
2200: return $self->{date};
2201: }
2202:
2203: sub note {
2204: my $self = shift;
2205: if ( @_ ) { $self->{note} = shift}
2206: return $self->{note};
2207: }
2208:
2209: sub path {
2210: my $self = shift;
2211: if ( @_ ) { $self->{path} = shift}
2212: return $self->{path};
2213: }
2214:
2215: sub nindex {
2216: my $self = shift;
2217: if ( @_ ) { $self->{nindex} = shift}
2218: return $self->{nindex};
2219: }
2220:
2221:
2222: 1;
2223: __END__
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