File:
[LON-CAPA] /
loncom /
interface /
lonwishlist.pm
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1.3:
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Mon Aug 16 13:37:41 2010 UTC (13 years, 10 months ago) by
wenzelju
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- Only allow links to LON-CAPA-resources from resource-pool (paths starts with /res/...) or to external websites. Uses same filter for external websites as it is used in lonwrapper to display external resources. That means that only paths (not starting with /res/...) which does not contain a .problem, .quiz, .exam etc. are allowed. This is good for most cases but crashes as soon as a real external website contains one of this pattern in its URL. So maybe there's a better way to find out wether a given URL belongs to a LON-CAPA-server or not...?
- Allow users to edit the path of a link regarding the restriction from above.
1: # The LearningOnline Network with CAPA
2: # Routines to control the wishlist
3: #
4: # $Id: lonwishlist.pm,v 1.3 2010/08/16 13:37:41 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:
30:
31: package Apache::lonwishlist;
32:
33: use strict;
34: use Apache::Constants qw(:common);
35: use Apache::lonnet;
36: use Apache::loncommon();
37: use Apache::lonhtmlcommon;
38: use Apache::lonlocal;
39: use LONCAPA;
40: use Tree;
41:
42:
43: # Global variables
44: my $root;
45: my @childrenRt;
46: my %TreeHash;
47: my %TreeToHash;
48: my @allFolders;
49: my @allNodes;
50: my $indentConst = 20;
51:
52:
53: # Read wishlist from user-data
54: sub getWishlist {
55: my %wishlist = &Apache::lonnet::dump('wishlist');
56: foreach my $i ( keys %wishlist) {
57: #File not found. This appears at the first time using the wishlist
58: #Create file and put 'root' into it
59: if ($i =~m/^error:No such file/) {
60: &Apache::lonnet::logthis($i.'! Create file by putting in the "root" of the directory tree.');
61: &Apache::lonnet::put('wishlist', {'root' => ''});
62: %wishlist = &Apache::lonnet::dump('wishlist');
63: }
64: elsif ($i =~ /^(con_lost|error|no_such_host)/i) {
65: &Apache::lonnet::logthis('ERROR while attempting to get wishlist: '.$i);
66: return 'error';
67: }
68: }
69:
70: # if we got no keys in hash returned by dump(), return error.
71: # wishlist will not be loaded, instead the user will be asked to try again later
72: if ((keys %wishlist) == 0) {
73: &Apache::lonnet::logthis('ERROR while attempting to get wishlist: no keys retrieved!');
74: return 'error';
75: }
76:
77: return %wishlist;
78: }
79:
80:
81: # Write wishlist to user-data
82: sub putWishlist {
83: my $wishlist = shift;
84: &Apache::lonnet::put('wishlist',$wishlist);
85: }
86:
87:
88: # Removes all existing entrys for wishlist in user-data
89: sub deleteWishlist {
90: my @wishlistkeys = &Apache::lonnet::getkeys('wishlist');
91: my %wishlist = &Apache::lonnet::del('wishlist',\@wishlistkeys);
92: }
93:
94:
95: # Create a new entry
96: sub newEntry() {
97: my ($title, $path, $note) = @_;
98: my $date = gmtime();
99: # Create Entry-Object
100: my $entry = Entry->new(title => $title, path => $path, note => $note, date => $date);
101: # Create Tree-Object, this correspones a node in the wishlist-tree
102: my $tree = Tree->new($entry);
103: # Add this node to wishlist-tree
104: my $folderIndex = $env{'form.folders'};
105: if ($folderIndex ne '') {
106: @allFolders = ();
107: &getFoldersToArray(\@childrenRt);
108: my $folderToInsertOn = &Tree::getNodeByIndex($folderIndex,\@allFolders);
109: $folderToInsertOn->add_child($tree);
110: }
111: else {
112: $root->add_child($tree);
113: }
114: &saveChanges();
115: }
116:
117:
118: # Delete entries
119: sub deleteEntries {
120: my $marked = shift;
121: &getNodesToArray(\@childrenRt);
122:
123: foreach my $m (@$marked) {
124: my $found = &Tree::getNodeByIndex($m, \@allNodes);
125: &Tree::removeNode($found);
126: }
127: @allNodes = ();
128: &saveChanges();
129: }
130:
131:
132: # Sort entries
133: sub sortEntries {
134: my $indexNode = shift;
135: my $at = shift;
136:
137: &getNodesToArray(\@childrenRt);
138: my $foundNode = &Tree::getNodeByIndex($indexNode, \@allNodes);
139:
140: &Tree::moveNode($foundNode,$at,undef);
141: @allNodes = ();
142: }
143:
144:
145: # Move entries
146: sub moveEntries {
147: my $indexNodesToMove = shift;
148: my $indexParent = shift;
149: my @nodesToMove = ();
150:
151: # get all nodes that should be moved
152: &getNodesToArray(\@childrenRt);
153: foreach my $index (@$indexNodesToMove) {
154: my $foundNode = &Tree::getNodeByIndex($index, \@allNodes);
155: push(@nodesToMove, $foundNode);
156: }
157:
158: foreach my $node (@nodesToMove) {
159: my $foundParent;
160: my $parentIsIn = 0;
161: foreach my $n (@nodesToMove) {
162: if ($node->parent()->value() ne "root") {
163: if ($node->parent()->value()->nindex() == $n->value()->nindex()) {
164: $parentIsIn = 1;
165: }
166: }
167: }
168: if (!$parentIsIn) {
169: if ($indexParent ne "root") {
170: $foundParent = &Tree::getNodeByIndex($indexParent, \@allNodes);
171: &Tree::moveNode($node,undef,$foundParent);
172: }
173: else {
174: &Tree::moveNode($node,undef,$root);
175: }
176: }
177: }
178: @allNodes = ();
179: }
180:
181:
182: # Set a new title for an entry
183: sub setNewTitle {
184: my ($nodeindex, $newTitle) = @_;
185: &getNodesToArray(\@childrenRt);
186: my $found = &Tree::getNodeByIndex($nodeindex, \@allNodes);
187: $found->value()->title($newTitle);
188: @allNodes = ();
189: }
190:
191:
192: # Set a new path for an entry
193: sub setNewPath {
194: my ($nodeindex, $newPath) = @_;
195: &getNodesToArray(\@childrenRt);
196: my $found = &Tree::getNodeByIndex($nodeindex, \@allNodes);
197: if ($found->value()->path()) {
198: $found->value()->path($newPath);
199: return 1;
200: }
201: @allNodes = ();
202: return 0;
203: }
204:
205:
206: # Set a new note for an entry
207: sub setNewNote {
208: my ($nodeindex, $newNote) = @_;
209: &getNodesToArray(\@childrenRt);
210: my $found = &Tree::getNodeByIndex($nodeindex, \@allNodes);
211: $found->value()->note($newNote);
212: @allNodes = ();
213: }
214:
215:
216: # Save all changes
217: sub saveChanges {
218: @childrenRt = $root->children();
219: &Tree::TreeIndex(\@childrenRt);
220: &Tree::setCountZero();
221: &Tree::RootToHash(\@childrenRt);
222: &Tree::TreeToHash(\@childrenRt);
223: &deleteWishlist();
224: &putWishlist(\%TreeToHash);
225:
226: }
227:
228:
229: # Return the names for all exiting folders in option-tags, so
230: # a new link or a new folder can be created in an existing folder
231: my $indent = 0;
232: my $foldersOption;
233: sub getFoldersForOption {
234: my $nodes = shift;
235:
236: foreach my $n (@$nodes) {
237: if ($n->value()->path() eq '') {
238: $foldersOption .= '<option value="'.$n->value()->nindex().'" style="margin-left:'.$indent.'px">'.
239: $n->value()->title().
240: '</option>';
241:
242: my @children = $n->children();
243: if ($#children >=0) {
244: $indent += 10;
245: &getFoldersForOption(\@children);
246: $indent -= 10;
247: }
248: }
249: }
250: }
251:
252:
253: sub getfoldersOption {
254: if (&getWishlist ne 'error') {
255: %TreeHash = &getWishlist();
256: $root = &Tree::HashToTree();
257: @childrenRt = $root->children();
258: &getFoldersForOption(\@childrenRt);
259: my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>'.$foldersOption;
260: $foldersOption = '';
261: return $options;
262: }
263: else {
264: return '';
265: }
266: }
267:
268:
269: # Put all folder-nodes to an array
270: sub getFoldersToArray {
271: my $children = shift;
272: foreach my $c (@$children) {
273: if ($c->value()->path() eq '') {
274: push(@allFolders,$c);
275: }
276: my @newchildren = $c->children();
277: if ($#newchildren >= 0) {
278: &getFoldersToArray(\@newchildren);
279: }
280: }
281: }
282:
283:
284: # Put all nodes to an array
285: sub getNodesToArray {
286: my $children = shift;
287: foreach my $c (@$children) {
288: push(@allNodes,$c);
289: my @newchildren = $c->children();
290: if ($#newchildren >= 0) {
291: &getNodesToArray(\@newchildren);
292: }
293: }
294: }
295:
296:
297: # Return a script-tag containing Javascript-function
298: # needed for wishlist actions like 'new link' ect.
299: sub JSforWishlist {
300: my $startPagePopup = &Apache::loncommon::start_page('Wishlist',undef,
301: {'only_body' => 1,
302: 'js_ready' => 1,
303: 'bgcolor' => '#FFFFFF',});
304: my $endPagePopup = &Apache::loncommon::end_page({'js_ready' => 1});
305:
306: @allFolders = ();
307: &getFoldersToArray(\@childrenRt);
308: &getFoldersForOption(\@childrenRt);
309:
310: # texthash
311: my %lt = &Apache::lonlocal::texthash(
312: 'nl' => 'New Link',
313: 'nf' => 'New Folder',
314: 'lt' => 'Link Title',
315: 'ft' => 'Folder Title',
316: 'pa' => 'Path',
317: 'nt' => 'Note',
318: 'si' => 'Save in',
319: 'cl' => 'Cancel');
320:
321:
322: my $inPageNewLink = '<h1>'.$lt{'nl'}.'</h1>'.
323: '<form method="post" name="newlink" action="/adm/wishlist" target="wishlist" '.
324: 'onsubmit="return newlinksubmit();" >'.
325: &Apache::lonhtmlcommon::start_pick_box().
326: &Apache::lonhtmlcommon::row_title($lt{'lt'}).
327: '<input type="text" name="title" size="45" value="" />'.
328: &Apache::lonhtmlcommon::row_closure().
329: &Apache::lonhtmlcommon::row_title($lt{'pa'}).
330: '<input type="text" name="path" size="45" value="" />'.
331: &Apache::lonhtmlcommon::row_closure().
332: &Apache::lonhtmlcommon::row_title($lt{'nt'}).
333: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea>'.
334: &Apache::lonhtmlcommon::row_closure(1).
335: &Apache::lonhtmlcommon::end_pick_box().
336: '<br/><br/>'.
337: '<input type="submit" value="'.$lt{'si'}.'" />'.
338: '<select name="folders">'.
339: '<option value="" selected="selected">('.&mt('Top level').')</option>'.
340: $foldersOption.
341: '</select>'.
342: '<input type="button" value="'.$lt{'cl'}.'" onclick="javascript:window.close();" />'.
343: '</form>';
344:
345: my $inPageNewFolder = '<h1>'.$lt{'nf'}.'</h1>'.
346: '<form method="post" name="newfolder" action="/adm/wishlist" target="wishlist" '.
347: 'onsubmit="return newfoldersubmit();" >'.
348: &Apache::lonhtmlcommon::start_pick_box().
349: &Apache::lonhtmlcommon::row_title($lt{'ft'}).
350: '<input type="text" name="title" size="45" value="" /><br />'.
351: &Apache::lonhtmlcommon::row_closure().
352: &Apache::lonhtmlcommon::row_title($lt{'nt'}).
353: '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea><br />'.
354: &Apache::lonhtmlcommon::row_closure(1).
355: &Apache::lonhtmlcommon::end_pick_box().
356: '<br/><br/>'.
357: '<input type="submit" value="'.$lt{'si'}.'" />'.
358: '<select name="folders">'.
359: '<option value="" selected="selected">('.&mt('Top level').')</option>'.
360: $foldersOption.
361: '</select>'.
362: '<input type="button" value="'.$lt{'cl'}.'" onclick="javascript:window.close();" />'.
363: '</form>';
364:
365: # Remove all \n for inserting on javascript document.write
366: $inPageNewLink =~ s/\n//g;
367: $inPageNewFolder =~ s/\n//g;
368:
369: # it is checked, wether a path links to a LON-CAPA-resource or an external website. links to course-contents are not allowed
370: # because they probably will return a kind of 'no access' (unless the user is already in the course, the path links to).
371: # also importing these kind of links into a course does not make much sense.
372: # to find out if a path (not starting with /res/...) links to course-contents, the same filter as in lonwrapper is used,
373: # that means that it is checked wether a path contains .problem, .quiz, .exam etc.
374: # this is good for most cases but crashes as soon as a real external website contains one of this pattern in its URL.
375: # so maybe there's a better way to find out wether a given URL belongs to a LON-CAPA-server or not ...?
376: my $warningLinkNotAllowed1 = &mt('You can only insert links to LON-CAPA resources from the resource-pool '.
377: 'or to external websites. Paths to LON-CAPA resources must be of the form /res/dom/usr... . '.
378: 'Paths to external websites must contain the network protocol (e.g. http://...).');
379: my $warningLinkNotAllowed2 = &mt('The following link is not allowed: ');
380: my $warningLink = &mt('You must insert a title and a path!');
381: my $warningFolder = &mt('You must insert a title!');
382: my $warningDelete = &mt('Are you sure you want to delete the selected entries? Deleting a folder also deletes all entries within this folder!');
383: 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.');
384: my $warningMove = &mt('You must select a destination folder!');
385: $foldersOption = '';
386:
387: my $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
388: function newLink() {
389: newlinkWin=window.open('','newlinkWin','width=580,height=320,scrollbars=yes');
390: newlinkWin.document.write('$startPagePopup'
391: +'<script type="text\/javascript">'
392: +'function newlinksubmit(){'
393: +'var path = document.getElementsByName("path")[0].value;'
394: +'var title = document.getElementsByName("title")[0].value;'
395: +'if (!path || !title) {'
396: +'alert("$warningLink");'
397: +'return false;}'
398: +'var linkOK = (path.match(/^http:(\\\\/\\\\/)/) || path.match(/^https:(\\\\/\\\\/)/))'
399: +'&& !(path.match(/\\.problem/) || path.match(/\\.exam/)'
400: +'|| path.match(/\\.quiz/) || path.match(/\\.assess/)'
401: +'|| path.match(/\\.survey/) || path.match(/\\.form/)'
402: +'|| path.match(/\\.library/) || path.match(/\\.page/)'
403: +'|| path.match(/\\.sequence/));'
404: +'if (!path.match(/^(\\\\/res\\\\/)/) && !linkOK) {'
405: +'alert("$warningLinkNotAllowed1");'
406: +'return false;}'
407: +'else {'
408: +'window.close();'
409: +'return true;}}'
410: +'<\/scr'+'ipt>'
411: +'$inPageNewLink'
412: +'$endPagePopup');
413: newlinkWin.document.close();
414: }
415:
416: function newFolder() {
417: newfolderWin=window.open('','newfolderWin','width=580,height=270, scrollbars=yes');
418: newfolderWin.document.write('$startPagePopup'
419: +'<script type="text\/javascript">'
420: +'function newfoldersubmit(){'
421: +'var title = document.getElementsByName("title")[0].value;'
422: +'if (!title) {'
423: +'alert("$warningFolder");'
424: +'return false;}'
425: +'else {'
426: +'window.close();'
427: +'return true;}}'
428: +'<\/scr'+'ipt>'
429: +'$inPageNewFolder'
430: +'$endPagePopup');
431: newfolderWin.document.close();
432: }
433:
434: function setFormAction(action,mode) {
435: var r = true;
436: setAction('');
437: if (action == 'delete') {
438: r = confirm("$warningDelete");
439: setAction('delete');
440: }
441: else if (action == 'save') {
442: var d = getDifferences();
443: if (d) {
444: if (!confirm('$warningSave')) {
445: setAction('noSave');
446: r = true;
447: }
448: else {
449: r = linksOK();
450: }
451: }
452: }
453: else if (action == 'saveOK') {
454: r = linksOK();
455: }
456: document.getElementsByName('list')[0].setAttribute("action", "/adm/wishlist?mode="+mode);
457: if (r) {
458: document.getElementsByName('list')[0].submit();
459: }
460: }
461:
462: function setAction(action) {
463: document.getElementById('action').value = action;
464: }
465:
466: function getDifferences() {
467: var newtitles = document.getElementsByName('newtitle');
468: var i = 0;
469: for (i=0;i<newtitles.length;i++) {
470: var newt = newtitles[i].value;
471: var oldt = newtitles[i].alt;
472: if (newt != oldt) {
473: return true;
474: }
475: }
476: var newpath = document.getElementsByName('newpath');
477: var i = 0;
478: for (i=0;i<newpath.length;i++) {
479: var newp = newpath[i].value;
480: var oldp = newpath[i].alt;
481: if (newp != oldp) {
482: return true;
483: }
484: }
485: var newnote = document.getElementsByName('newnote');
486: var i = 0;
487: for (i=0;i<newnote.length;i++) {
488: var newn = newnote[i].value;
489: var oldn = newnote[i].innerHTML;
490: if (newn != oldn) {
491: return true;
492: }
493: }
494: return false;
495: }
496:
497: function linksOK() {
498: var newpath = document.getElementsByName('newpath');
499: var i = 0;
500: for (i=0;i<newpath.length;i++) {
501: var path = newpath[i].value;
502: var linkOK = (path.match(/^http:\\/\\//) || path.match(/^https:\\/\\//))
503: && !(path.match(/\\.problem/) || path.match(/\\.exam/)
504: || path.match(/\\.quiz/) || path.match(/\\.assess/)
505: || path.match(/\\.survey/) || path.match(/\\.form/)
506: || path.match(/\\.library/) || path.match(/\\.page/)
507: || path.match(/\\.sequence/));
508: if (!path.match(/^(\\/res\\/)/) && !linkOK) {
509: alert("$warningLinkNotAllowed1 $warningLinkNotAllowed2"+path);
510: return false;
511: }
512: }
513: return true;
514: }
515:
516: function onLoadAction(mode) {
517: window.name = 'wishlist';
518: if (mode == "edit") {
519: var deepestRows = getDeepestRows();
520: setDisplaySelect(deepestRows, '');
521: }
522: }
523:
524: function folderAction(rowid) {
525: var row = document.getElementById(rowid);
526: var indent = getIndent(row);
527: var displ;
528: var status;
529: if (getImage(row) == 'closed') {
530: displ = '';
531: status = 'open';
532: }
533: else {
534: displ = 'LC_hidden';
535: status = 'closed';
536: }
537: setImage(row,status);
538: if (getNextRow(row) != null) {
539: var nextIndent = getIndent(getNextRow(row));
540: row = getNextRow(row);
541: while (nextIndent > indent) {
542: if (displ == '') {
543: row.className = (row.className).replace('LC_hidden','');
544: }
545: else if (displ != '' && !((row.className).match('LC_hidden'))) {
546: var oldClass = row.className;
547: row.className = oldClass+' LC_hidden';
548: setDisplayNote(row.id.replace('row','note'),'LC_hidden');
549: }
550: if (status == 'open' && getImage(row).match('closed')) {
551: row = getNextRowWithIndent(row, getIndent(row));
552: }
553: else {
554: row = getNextRow(row);
555: }
556: if (row != null) {
557: nextIndent = getIndent(row);
558: }
559: else {
560: nextIndent = indent;
561: }
562: }
563: }
564: setClasses();
565: var newtitles = document.getElementsByName('newtitle');
566: if (newtitles.length>0) {
567: var deepestRows = getDeepestRows();
568: var otherRows = getOtherRows(deepestRows);
569: setDisplaySelect(deepestRows,'');
570: setDisplaySelect(otherRows,'LC_hidden');
571: }
572: }
573:
574: function selectAction(rowid) {
575: var row = document.getElementById(rowid);
576: var indent = getIndent(row);
577: var checked = getChecked(row);
578: var previousFolderRows = new Array();
579: if (indent != 0) {
580: previousFolderRows = getPreviousFolderRows(row);
581: }
582: if (getNextRow(row) != null) {
583: var nextIndent = getIndent(getNextRow(row));
584: row = getNextRow(row);
585: while (nextIndent > indent) {
586: setChecked(row,checked);
587: if (status == 'open' && getImage(row).match('closed')) {
588: row = getNextRowWithIndent(row, getIndent(row));
589: }
590: else {
591: row = getNextRow(row);
592: }
593: if (row != null) {
594: nextIndent = getIndent(row);
595: }
596: else {
597: nextIndent = indent;
598: }
599: }
600: }
601: if (!checked) {
602: var i = 0;
603: for (i=0;i<previousFolderRows.length;i++) {
604: setChecked(previousFolderRows[i], false);
605: }
606: }
607: }
608:
609: function getNextNote(row) {
610: var rowId = row.id;
611: var nextRowId = parseInt(rowId.substr(3,rowId.length))+1;
612: nextRowId = "note"+nextRowId;
613: var nextRow = document.getElementById(nextRowId);
614: return nextRow;
615: }
616:
617: function getNextRow(row) {
618: var rowId = row.id;
619: var nextRowId = parseInt(rowId.substr(3,rowId.length))+1;
620: nextRowId = "row"+nextRowId;
621: var nextRow = document.getElementById(nextRowId);
622: return nextRow;
623: }
624:
625: function getPreviousRow(row) {
626: var rowId = row.id;
627: var previousRowId = parseInt(rowId.substr(3,rowId.length))-1;
628: previousRowId = "row"+previousRowId;
629: var previousRow =document.getElementById(previousRowId);
630: return previousRow;
631: }
632:
633: function getIndent(row) {
634: var childPADD = document.getElementById(row.id.replace('row','padd'));
635: indent = childPADD.style.paddingLeft;
636: indent = parseInt(indent.substr(0,(indent.length-2)));
637:
638: if (getImage(row).match('link')) {
639: indent -= $indentConst;
640: }
641: return indent;
642: }
643:
644: function getNextRowWithIndent(row, indent) {
645: var nextRow = getNextRow(row);
646: if (nextRow != null) {
647: var nextIndent = getIndent(nextRow);
648: while (nextIndent >= indent) {
649: if (nextIndent == indent) {
650: return nextRow;
651: }
652: nextRow = getNextRow(nextRow);
653: if (nextRow == null) {
654: return null;
655: }
656: nextIndent = getIndent(nextRow);
657: }
658: }
659: return nextRow;
660: }
661:
662: function getImage(row) {
663: var childIMG = document.getElementById(row.id.replace('row','img'));
664: if ((childIMG.src).match('closed')) {
665: return 'closed';
666: }
667: else if ((childIMG.src).match('open')) {
668: return 'open;'
669: }
670: else {
671: return 'link';
672: }
673: }
674:
675: function setImage(row, status) {
676: var childIMG = document.getElementById(row.id.replace('row','img'));
677: var childIMGFolder = document.getElementById(row.id.replace('row','imgFolder'));
678: childIMG.src = "/adm/lonIcons/arrow."+status+".gif";
679: childIMGFolder.src="/adm/lonIcons/navmap.folder."+status+".gif";
680: }
681:
682: function getChecked(row) {
683: var childCHECK = document.getElementById(row.id.replace('row','check'));
684: var checked = childCHECK.checked;
685: return checked;
686: }
687:
688: function setChecked(row,checked) {
689: var childCHECK = document.getElementById(row.id.replace('row','check'));
690: childCHECK.checked = checked;
691: }
692:
693: function getPreviousFolderRows(row) {
694: var previousRow = getPreviousRow(row);
695: var indent = getIndent(previousRow);
696: var kindOfEntry = getImage(previousRow);
697: var rows = new Array();
698: if (kindOfEntry != 'link') {
699: rows.push(previousRow);
700: }
701:
702: while (indent >0) {
703: previousRow = getPreviousRow(previousRow);
704: if (previousRow != null) {
705: indent = getIndent(previousRow);
706: kindOfEntry = getImage(previousRow);
707: if (kindOfEntry != 'link') {
708: rows.push(previousRow);
709: }
710: }
711: else {
712: indent = 0;
713: }
714: }
715: return rows;
716: }
717:
718: function getDeepestRows() {
719: var row = document.getElementById('row0');
720: var firstRow = row;
721: var indent = getIndent(row);
722: var maxIndent = indent;
723: while (getNextRow(row) != null) {
724: row = getNextRow(row);
725: indent = getIndent(row);
726: if (indent>maxIndent && !((row.className).match('LC_hidden'))) {
727: maxIndent = indent;
728: }
729: }
730: var deepestRows = new Array();
731: row = firstRow;
732: var rowIndent;
733: while (getNextRow(row) != null) {
734: rowIndent = getIndent(row);
735: if (rowIndent == maxIndent) {
736: deepestRows.push(row);
737: }
738: row = getNextRow(row);
739: }
740: rowIndent = getIndent(row);
741: if (rowIndent == maxIndent) {
742: deepestRows.push(row);
743: }
744: return deepestRows;
745: }
746:
747: function getOtherRows(deepestRows) {
748: var row = document.getElementById('row0');
749: var otherRows = new Array();
750: var isIn = false;
751: while (getNextRow(row) != null) {
752: var i = 0;
753: for (i=0; i < deepestRows.length; i++) {
754: if (row.id == deepestRows[i].id) {
755: isIn = true;
756: }
757: }
758: if (!isIn) {
759: otherRows.push(row);
760: }
761: row = getNextRow(row);
762: isIn = false;
763: }
764: for (i=0; i < deepestRows.length; i++) {
765: if (row.id == deepestRows[i].id) {
766: isIn = true;
767: }
768: }
769: if (!isIn) {
770: otherRows.push(row);
771: }
772: return otherRows;
773: }
774:
775: function setDisplaySelect(deepestRows, displ) {
776: var i = 0;
777: for (i = 0; i < deepestRows.length; i++) {
778: var row = deepestRows[i];
779: var childSEL = document.getElementById(row.id.replace('row','sel'));
780: childSEL.className = displ;
781: }
782: }
783:
784: function submitSelect() {
785: var list = document.getElementsByName('list')[0];
786: list.setAttribute("action","/adm/wishlist?mode=edit");
787: list.submit();
788: }
789:
790: function setDisplayNote(rowid, displ) {
791: var row = document.getElementById(rowid);
792: if (!displ) {
793: if ((row.className).match('LC_hidden')) {
794: row.className = (row.className).replace('LC_hidden','');
795: }
796: else {
797: var oldClass = row.className;
798: row.className = oldClass+' LC_hidden';
799: }
800: }
801: else {
802: if (displ == '') {
803: row.className = (row.className).replace('LC_hidden','');
804: }
805: else if (displ != '' && !((row.className).match('LC_hidden'))) {
806: var oldClass = row.className;
807: row.className = oldClass+' LC_hidden';
808: }
809: }
810: var noteText = document.getElementById(rowid.replace('note','noteText'));
811: var noteImg = document.getElementById(rowid.replace('note','noteImg'));
812: if (noteText.value) {
813: noteImg.src = "/res/adm/pages/anot2.png";
814: }
815: else {
816: noteImg.src = "/res/adm/pages/anot.png";
817: }
818:
819: }
820:
821: function setClasses() {
822: var row = document.getElementById("row0");
823: var note = document.getElementById("note0");
824: var LC_class = 0;
825: if (getNextRow(row) != null) {
826: while (getNextRow(row) != null) {
827: if (!(row.className).match('LC_hidden')) {
828: note.className = (note.className).replace('LC_even_row','');
829: note.className = (note.className).replace('LC_odd_row','');
830: if (LC_class) {
831: row.className = 'LC_even_row';
832: note.className = 'LC_even_row'+note.className;
833: }
834: else {
835: row.className = 'LC_odd_row';
836: note.className = 'LC_odd_row'+note.className;;
837: }
838: LC_class = !LC_class;
839: }
840: note = getNextNote(row);
841: row = getNextRow(row);
842: }
843: }
844: if (!(row.className).match('LC_hidden')) {
845: note.className = (note.className).replace('LC_even_row','');
846: note.className = (note.className).replace('LC_odd_row','');
847: if (LC_class) {
848: row.className = 'LC_even_row';
849: note.className = 'LC_even_row'+note.className;
850: }
851: else {
852: row.className = 'LC_odd_row';
853: note.className = 'LC_odd_row'+note.className;
854: }
855: }
856: }
857:
858: function selectDestinationFolder() {
859: var mark = document.getElementsByName('mark');
860: var i = 0;
861: for (i = 0; i < mark.length; i++) {
862: if (mark[i].checked) {
863: document.getElementsByName('list')[0].submit();
864: return true;
865: }
866: }
867: alert('$warningMove');
868: return false;
869: }
870:
871: function preview(url) {
872: var newWin;
873: if (!(url.match(/^http:\\/\\//) || url.match(/^https:\\/\\//))) {
874: newWin = window.open(url+'?inhibitmenu=yes','preview','width=560,height=350,scrollbars=yes');
875: }
876: else {
877: newWin = window.open(url,'preview','width=560,height=350,scrollbars=yes');
878: }
879: newWin.focus();
880: }
881:
882: function finish_import() {
883: opener.document.forms.simpleedit.importdetail.value='';
884: for (var num = 0; num < document.forms.groupsort.fnum.value; num++) {
885: if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
886: opener.document.forms.simpleedit.importdetail.value+='&'+
887: eval("document.forms.groupsort.title"+num+".value")+'='+
888: eval("document.forms.groupsort.filelink"+num+".value")+'='+
889: eval("document.forms.groupsort.id"+num+".value");
890: }
891: }
892: opener.document.forms.simpleedit.submit();
893: self.close();
894: }
895:
896: function checkAll() {
897: var checkboxes = document.getElementsByName('check');
898: for (var i = 0; i < checkboxes.length; i++) {
899: checkboxes[i].checked = "checked";
900: }
901: }
902:
903: function uncheckAll() {
904: var checkboxes = document.getElementsByName('check');
905: for (var i = 0; i < checkboxes.length; i++) {
906: checkboxes[i].checked = "";
907: }
908: }
909:
910: JAVASCRIPT
911: return $js;
912: }
913:
914:
915: # HTML-Markup for table if in view-mode
916: my $wishlistHTMLview;
917: my $indent = $indentConst;
918: sub wishlistView {
919: my $nodes = shift;
920:
921: foreach my $n (@$nodes) {
922: my $index = $n->value()->nindex();
923:
924: # 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.
925: # only display the top level entries on load
926: $wishlistHTMLview .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
927: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
928:
929:
930: # checkboxes
931: $wishlistHTMLview .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
932: 'onclick="selectAction('."'row".$index."'".')"/></td>';
933:
934: # entry is a folder
935: if ($n->value()->path() eq '') {
936: $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">'.
937: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
938: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
939: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
940: $n->value()->title().'</a></td>';
941: }
942: # entry is a link
943: else {
944: $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
945: '<a href="javascript:preview('."'".$n->value()->path()."'".');">'.
946: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
947: $n->value()->title().'</a></td>';
948: }
949:
950: # note-icon, different icons for an entries with note and those without
951: my $noteIMG = 'anot.png';
952:
953: if ($n->value()->note() ne '') {
954: $noteIMG = 'anot2.png';
955: }
956:
957: $wishlistHTMLview .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
958: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
959: ' class="LC_icon"/></a></td>';
960:
961: $wishlistHTMLview .= &Apache::loncommon::end_data_table_row();
962:
963: # start row containing the textarea for the note, do not display note on default
964: $wishlistHTMLview .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
965: '<td></td><td>'.
966: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
967: 'name="newnote" >'.
968: $n->value()->note().'</textarea></td><td></td>';
969: $wishlistHTMLview .= &Apache::loncommon::end_data_table_row();
970:
971: # if the entry is a folder, it could have other entries as content. if it has, call wishlistView for those entries
972: my @children = $n->children();
973: if ($#children >=0) {
974: $indent += 20;
975: &wishlistView(\@children);
976: $indent -= 20;
977: }
978: }
979: }
980:
981:
982: # HTML-Markup for table if in edit-mode
983: my $wishlistHTMLedit;
984: my $indent = $indentConst;
985: sub wishlistEdit {
986: my $nodes = shift;
987: my $curNode = 1;
988:
989: foreach my $n (@$nodes) {
990: my $index = $n->value()->nindex();
991:
992: # start row, use data_table routines to set class to LC_even or LC_odd automatically.
993: # this rows contains a checkbox, a select-field for sorting entries, the title in an input-field and the note-icon.
994: # only display the top level entries on load
995: $wishlistHTMLedit .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
996: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
997:
998: # checkboxes
999: $wishlistHTMLedit .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
1000: 'onclick="selectAction('."'row".$index."'".')"/></td>';
1001:
1002: # 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.
1003: # set the number for the current entry into brackets
1004: my $options;
1005: for (my $i = 1; $i < ((scalar @{$nodes})+1); $i++) {
1006: if ($i == $curNode) {
1007: $options .= '<option selected="selected" value="">('.$i.')</option>';
1008: }
1009: else {
1010: $options .= '<option value="'.$i.'">'.$i.'</option>';
1011: }
1012: }
1013: $curNode++;
1014:
1015: # entry is a folder
1016: if ($n->value()->path() eq '') {
1017: $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
1018: $options.'</select></td>'.
1019: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px;">'.
1020: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top" >'.
1021: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1022: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/></a>'.
1023: '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'"/>'.
1024: '</td><td></td>';
1025:
1026: }
1027: # entry is a link
1028: else {
1029: $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
1030: $options.'</select></td>'.
1031: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px;">'.
1032: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
1033: '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'"/></td>'.
1034: '<td><input type="text" name="newpath" value="'.$n->value()->path().'" alt = "'.$n->value()->path().'"/></td>';
1035: }
1036:
1037: # note-icon, different icons for an entries with note and those without
1038: my $noteIMG = 'anot.png';
1039:
1040: if ($n->value()->note() ne '') {
1041: $noteIMG = 'anot2.png';
1042: }
1043:
1044: $wishlistHTMLedit .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1045: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1046: ' class="LC_icon"/></a></td>';
1047:
1048: $wishlistHTMLedit .= &Apache::loncommon::end_data_table_row();
1049:
1050: # start row containing the textarea for the note
1051: $wishlistHTMLedit .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1052: '<td></td><td></td><td colspan="2">'.
1053: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1054: 'name="newnote">'.
1055: $n->value()->note().'</textarea></td><td></td>';
1056: $wishlistHTMLedit .= &Apache::loncommon::end_data_table_row();
1057:
1058: # if the entry is a folder, it could have other entries as content. if it has, call wishlistEdit for those entries
1059: my @children = $n->children();
1060: if ($#children >=0) {
1061: $indent += 20;
1062: &wishlistEdit(\@children);
1063: $indent -= 20;
1064: }
1065: }
1066: }
1067:
1068:
1069:
1070: # HTML-Markup for table if in move-mode
1071: my $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
1072: '<td>'.&mt('Top level').'</td><td></td></tr>';
1073: my $indent = $indentConst;
1074: sub wishlistMove {
1075: my $nodes = shift;
1076: my $marked = shift;
1077:
1078: foreach my $n (@$nodes) {
1079: my $index = $n->value()->nindex();
1080:
1081: #find out wether the current entry was marked to be moved.
1082: my $isIn = 0;
1083: foreach my $m (@$marked) {
1084: if ($index == $m) {
1085: $isIn = 1;
1086: }
1087: }
1088: # 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
1089: $wishlistHTMLmove .= &Apache::loncommon::start_data_table_row('','row'.$index);
1090:
1091:
1092: # entry is a folder
1093: if ($n->value()->path() eq '') {
1094: # display a radio-button, if the folder was not selected to be moved
1095: if (!$isIn) {
1096: $wishlistHTMLmove .= '<td><input type="radio" name="mark" id="radio'.$index.'" value="'.$index.'" /></td>'.
1097: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">';
1098: }
1099: # higlight the title, if the folder was selected to be moved
1100: else {
1101: $wishlistHTMLmove .= '<td></td>'.
1102: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;'.
1103: 'color:red;">';
1104: }
1105: #arrow- and folder-image, all folders are open, and title
1106: $wishlistHTMLmove .= '<img src="/adm/lonIcons/arrow.open.gif" id="img'.$index.'" alt = "" />'.
1107: '<img src="/adm/lonIcons/navmap.folder.open.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1108: $n->value()->title().'</td>';
1109: }
1110: # entry is a link
1111: else {
1112: # higlight the title, if the link was selected to be moved
1113: my $highlight = '';
1114: if ($isIn) {
1115: $highlight = 'style="color:red;"';
1116: }
1117: # link-image and title
1118: $wishlistHTMLmove .= '<td></td>'.
1119: '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
1120: '<a href="javascript:preview('."'".$n->value()->path()."'".');" '.$highlight.'>'.
1121: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
1122: $n->value()->title().'</a></td>';
1123: }
1124:
1125: # note-icon, different icons for an entries with note and those without
1126: my $noteIMG = 'anot.png';
1127:
1128: if ($n->value()->note() ne '') {
1129: $noteIMG = 'anot2.png';
1130: }
1131:
1132: $wishlistHTMLmove .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1133: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1134: ' class="LC_icon"/></a></td>';
1135:
1136: $wishlistHTMLmove .= &Apache::loncommon::end_data_table_row();
1137:
1138: # start row containing the textarea for the note, readonly in move-mode
1139: $wishlistHTMLmove .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1140: '<td></td><td>'.
1141: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1142: 'name="newnote" readonly="readonly">'.
1143: $n->value()->note().'</textarea></td><td></td>'.
1144: &Apache::loncommon::end_data_table_row();
1145:
1146: # if the entry is a folder, it could have other entries as content. if it has, call wishlistMove for those entries
1147: my @children = $n->children();
1148: if ($#children >=0) {
1149: $indent += 20;
1150: &wishlistMove(\@children, $marked);
1151: $indent -= 20;
1152: }
1153: }
1154: }
1155:
1156:
1157:
1158: # HTML-Markup for table if in import-mode
1159: my $wishlistHTMLimport;
1160: my $indent = $indentConst;
1161: my $form = 1;
1162: sub wishlistImport {
1163: my $nodes = shift;
1164:
1165: foreach my $n (@$nodes) {
1166: my $index = $n->value()->nindex();
1167:
1168: # 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.
1169: # only display the top level entries on load
1170: $wishlistHTMLimport .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
1171: :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
1172:
1173:
1174: # checkboxes
1175: $wishlistHTMLimport .= '<td>'.
1176: '<input type="checkbox" name="check" id="check'.$index.'" value="'.$index.'" '.
1177: 'onclick="selectAction('."'row".$index."'".')"/>'.
1178: '<input type="hidden" name="title'.$index.'" value="'.&escape($n->value()->title()).'">'.
1179: '<input type="hidden" name="filelink'.$index.'" value="'.&escape($n->value()->path()).'">'.
1180: '<input type="hidden" name="id'.$index.'">'.
1181: '</td>';
1182:
1183: # entry is a folder
1184: if ($n->value()->path() eq '') {
1185: $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">'.
1186: '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
1187: '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
1188: '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
1189: $n->value()->title().'</a></td>';
1190: }
1191: # entry is a link
1192: else {
1193: $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
1194: '<a href="javascript:preview('."'".$n->value()->path()."'".');">'.
1195: '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
1196: $n->value()->title().'</a></td>';
1197: $form++;
1198: }
1199:
1200: # note-icon, different icons for an entries with note and those without
1201: my $noteIMG = 'anot.png';
1202:
1203: if ($n->value()->note() ne '') {
1204: $noteIMG = 'anot2.png';
1205: }
1206:
1207: $wishlistHTMLimport .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
1208: '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
1209: ' class="LC_icon"/></a></td>';
1210:
1211: $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
1212:
1213: # start row containing the textarea for the note, do not display note on default, readonly in import-mode
1214: $wishlistHTMLimport .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
1215: '<td></td><td>'.
1216: '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
1217: 'name="newnote" readonly="readonly">'.
1218: $n->value()->note().'</textarea></td><td></td>';
1219: $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
1220:
1221: # if the entry is a folder, it could have other entries as content. if it has, call wishlistImport for those entries
1222: my @children = $n->children();
1223: if ($#children >=0) {
1224: $indent += 20;
1225: &wishlistImport(\@children);
1226: $indent -= 20;
1227: }
1228: }
1229: }
1230:
1231: # Returns the HTML-Markup for wishlist
1232: sub makePage {
1233: my $mode = shift;
1234: my $marked = shift;
1235:
1236: # breadcrumbs and start_page
1237: &Apache::lonhtmlcommon::clear_breadcrumbs();
1238: &Apache::lonhtmlcommon::add_breadcrumb(
1239: { href => '/adm/wishlist?mode='.$mode,
1240: text => 'Wishlist'});
1241: my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
1242: {'add_entries' => {
1243: 'onload' => 'javascript:onLoadAction('."'".$mode."'".');',
1244: 'onunload' => 'javascript:window.name = '."'loncapaclient'"}});
1245:
1246: my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs('Wishlist '.
1247: '<a title="Online-Hilfe" href="/adm/help/Wishlist.hlp" target="_top">'.
1248: '<img src="/adm/help/help.png" alt="'.&mt('Help').'" '.
1249: 'title="'.&mt('Help').'" class="LC_icon" /></a>');
1250:
1251: # get javascript-code for wishlist-interactions
1252: my $js = &JSforWishlist();
1253:
1254: # texthash for items in funtionlist
1255: my %lt = &Apache::lonlocal::texthash(
1256: 'ed' => 'Edit',
1257: 'vw' => 'View',
1258: 'al' => 'Add Link',
1259: 'af' => 'Add Folder',
1260: 'mv' => 'Move Selected',
1261: 'dl' => 'Delete Selected',
1262: 'sv' => 'Save');
1263:
1264: # start functionlist
1265: my $functions = &Apache::lonhtmlcommon::start_funclist();
1266:
1267: # icon for edit-mode, display when in view-mode
1268: if ($mode eq 'view') {
1269: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1270: 'onclick="setFormAction('."'save','edit'".');" class="LC_menubuttons_link">'.
1271: '<img src="/res/adm/pages/edit-mode-22x22.png" alt="'.$lt{'ed'}.'" '.
1272: 'title="'.$lt{'ed'}.'" class="LC_icon"/> '.
1273: '<span class="LC_menubuttons_inline_text">'.$lt{'ed'}.'</span></a>');
1274: }
1275: # icon for view-mode, display when in edit-mode
1276: else {
1277: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1278: 'onclick="setFormAction('."'save','view'".');" class="LC_menubuttons_link">'.
1279: '<img src="/res/adm/pages/view-mode-22x22.png" alt="'.$lt{'vw'}.'" '.
1280: 'title="'.$lt{'vw'}.'" class="LC_icon"/> '.
1281: '<span class="LC_menubuttons_inline_text">'.$lt{'vw'}.'</span></a>');
1282: }
1283:
1284: # icon for adding a new link
1285: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1286: 'onclick="newLink();" class="LC_menubuttons_link">'.
1287: '<img src="/res/adm/pages/link-new-22x22.png" alt="'.$lt{'al'}.'" '.
1288: 'title="'.$lt{'al'}.'" class="LC_icon"/>'.
1289: '<span class="LC_menubuttons_inline_text">'.$lt{'al'}.'</span></a>');
1290:
1291: # icon for adding a new folder
1292: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1293: 'onclick="newFolder();" class="LC_menubuttons_link">'.
1294: '<img src="/res/adm/pages/folder-new-22x22.png" alt="'.$lt{'af'}.'" '.
1295: 'title="'.$lt{'af'}.'" class="LC_icon"/>'.
1296: '<span class="LC_menubuttons_inline_text">'.$lt{'af'}.'</span></a>');
1297:
1298: # icon for moving entries
1299: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1300: 'onclick="setFormAction('."'move','move'".'); " class="LC_menubuttons_link">'.
1301: '<img src="/res/adm/pages/move-22x22.png" alt="'.$lt{'mv'}.'" '.
1302: 'title="'.$lt{'mv'}.'" class="LC_icon" />'.
1303: '<span class="LC_menubuttons_inline_text">'.$lt{'mv'}.'</span></a>');
1304:
1305: # icon for deleting entries
1306: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1307: 'onclick="setFormAction('."'delete','".$mode."'".'); " class="LC_menubuttons_link">'.
1308: '<img src="/res/adm/pages/del.png" alt="'.$lt{'dl'}.'" '.
1309: 'title="'.$lt{'dl'}.'" class="LC_icon" />'.
1310: '<span class="LC_menubuttons_inline_text">'.$lt{'dl'}.'</span></a>');
1311:
1312: # icon for saving changes
1313: $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
1314: 'onclick="setFormAction('."'saveOK','".$mode."'".'); " class="LC_menubuttons_link">'.
1315: '<img src="/res/adm/pages/save-22x22.png" alt="'.$lt{'sv'}.'" '.
1316: 'title="'.$lt{'sv'}.'" class="LC_icon" />'.
1317: '<span class="LC_menubuttons_inline_text">'.$lt{'sv'}.'</span></a>');
1318:
1319: # end funtionlist and generate subbox
1320: $functions.= &Apache::lonhtmlcommon::end_funclist();
1321: my $subbox = &Apache::loncommon::head_subbox($functions);
1322:
1323: # start form
1324: my $inner .= '<form name="list" action ="/adm/wishlist" method="post">'.
1325: '<input type="hidden" id="action" name="action" value=""/>';
1326:
1327: # only display subbox in view- or edit-mode
1328: if ($mode eq 'view' || $mode eq 'edit') {
1329: $inner .= $subbox;
1330: }
1331:
1332: # generate table-content depending on mode
1333: if ($mode eq 'edit') {
1334: &wishlistEdit(\@childrenRt);
1335: if ($wishlistHTMLedit ne '') {
1336: $inner .= &Apache::loncommon::start_data_table("LC_tableOfContent");
1337: $inner .= $wishlistHTMLedit;
1338: $inner .= &Apache::loncommon::end_data_table();
1339: }
1340: else {
1341: $inner .= '<span class="LC_info">'.&mt("Your wishlist ist currently empty.").'</span>';
1342: }
1343: $wishlistHTMLedit = '';
1344: }
1345: elsif ($mode eq 'view') {
1346: &wishlistView(\@childrenRt);
1347: if ($wishlistHTMLview ne '') {
1348: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLview.'</table>';
1349: }
1350: else {
1351: $inner .= '<span class="LC_info">'.&mt("Your wishlist ist currently empty.").'</span>';
1352: }
1353: $wishlistHTMLview = '';
1354: }
1355: else {
1356: my $markStr = '';
1357: foreach my $m (@$marked) {
1358: $markStr .= $m.',';
1359: }
1360: if ($markStr) {
1361: $markStr = substr($markStr, 0, length($markStr)-1);
1362: $inner .= '<input type="hidden" value="'.$markStr.'" name="markedToMove"/>';
1363: $inner .= '<p><span class="LC_info">'.&mt('You have selected the red marked entries to be moved to another folder. '.
1364: 'Now choose the new destination folder.').'</span></p>';
1365: &wishlistMove(\@childrenRt, $marked);
1366: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLmove.'</table><br/><br/>';
1367: $inner .= '<input type="button" value="'.&mt('Move').'" onclick="setFormAction('."'','view'".'); selectDestinationFolder()"/>'.
1368: '<input type="button" value="'.&mt('Cancel').'" onclick="go('."'/adm/wishlist'".')"/>';
1369:
1370: $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
1371: '<td>'.&mt('Top level').'</td><td></td></tr>';
1372: }
1373: else {
1374: $inner .= '<p><span class="LC_info">'.&mt("You haven't marked any entry to move.").'</span></p>'.
1375: '<input type="button" value="'.&mt('Back').'" onclick="go('."'/adm/wishlist'".')"/>';
1376: }
1377: }
1378:
1379: # end form
1380: $inner .= '</form>';
1381:
1382: # end_page
1383: my $endPage = &Apache::loncommon::end_page();
1384:
1385: # put all page-elements together
1386: my $page = $startPage.$breadcrumbs.$js.$inner.$endPage;
1387:
1388: return $page;
1389: }
1390:
1391:
1392: # Returns the HTML-Markup for the page, shown when a link was set
1393: sub makePageSet {
1394: # start_page
1395: my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
1396: {'only_body' => 1});
1397:
1398: # confirm success and offer link to wishlist
1399: my $message = &Apache::lonhtmlcommon::confirm_success(&mt('Link successfully set!'));
1400: $message = &Apache::loncommon::confirmwrapper($message);
1401:
1402: my $inner .= '<br>'.$message.'<br/><br/>'.
1403: '<a href="javascript:;" onclick="opener.open('."'/adm/wishlist'".');window.close();">'.&mt('Go to wishlist').'</a>'.
1404: ' <a href="javascript:;" onclick="window.close();">'.&mt('Close this window').'</a>';
1405:
1406: # end_page
1407: my $endPage = &Apache::loncommon::end_page();
1408:
1409: # put all page-elements together
1410: my $page = $startPage.$inner.$endPage;
1411:
1412: return $page;
1413: }
1414:
1415:
1416: # Returns the HTML-Markup for the page, shown when links should be imported into a course
1417: sub makePageImport {
1418: # start_page
1419: my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
1420: {'only_body' => 1});
1421:
1422: # get javascript-code for wishlist-interactions
1423: my $js = &JSforWishlist();
1424:
1425: my $inner = '<h1>'.&mt('Import Resources from Wishlist').'</h1>';
1426: $inner .= '<p><span class="LC_info">'.&mt("Please note that you can use the checkboxes corresponding to a folder to ".
1427: "easily check all links within this folder. The folder structure itself can't be imported. ".
1428: "All checked links will be imported into the current folder of your course.").'</span></p>';
1429:
1430: my %wishlist = &getWishlist();
1431: my $fnum = (keys %wishlist)-1;
1432:
1433: $inner .= '<form method="post" name="groupsort">'.
1434: '<input type="hidden" value="'.$fnum.'" name="fnum">'.
1435: '<input type="button" onclick="javascript:checkAll()" id="checkallbutton" value="'.&mt('Check All').'">'.
1436: '<input type="button" onclick="javascript:uncheckAll()" id="uncheckallbutton" value="'.&mt('Uncheck All').'">'.
1437: '<input type="button" value="'.&mt('Import Checked').'" onclick="finish_import();">'.
1438: '<input type="button" value="'.&mt('Cancel').'" onclick="window.close();"><br/><br/>';
1439:
1440:
1441: # wishlist-table
1442: &wishlistImport(\@childrenRt);
1443: if ($wishlistHTMLimport ne '') {
1444: $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLimport.'</table>';
1445: }
1446: else {
1447: $inner .= '<span class="LC_info">'.&mt("Your wishlist ist currently empty.").'</span>';
1448: }
1449: $wishlistHTMLimport = '';
1450:
1451: $inner .= '</form>';
1452:
1453: # end_page
1454: my $endPage = &Apache::loncommon::end_page();
1455:
1456: # put all page-elements together
1457: my $page = $startPage.$js.$inner.$endPage;
1458:
1459: return $page;
1460: }
1461:
1462:
1463: # Returns the HTML-Markup for error-page
1464: sub makeErrorPage {
1465: # breadcrumbs and start_page
1466: &Apache::lonhtmlcommon::add_breadcrumb(
1467: { href => '/adm/wishlist',
1468: text => 'Wishlist'});
1469: my $startPage = &Apache::loncommon::start_page('Wishlist');
1470:
1471: my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs('Wishlist '.
1472: '<a title="Online-Hilfe" href="/adm/help/Wishlist.hlp" target="_top">'.
1473: '<img src="/adm/help/help.png" alt="'.&mt('Help').'" '.
1474: 'title="'.&mt('Help').'" class="LC_icon" /></a>');
1475: &Apache::lonhtmlcommon::clear_breadcrumbs();
1476:
1477: # error-message
1478: my $inner .= '<span class="LC_error">'.&mt('An error occurred! Please try again later.').'</span>';
1479:
1480: # end_page
1481: my $endPage = &Apache::loncommon::end_page();
1482:
1483: # put all page-elements together
1484: my $page = $startPage.$breadcrumbs.$inner.$endPage;
1485:
1486: return $page;
1487: }
1488:
1489: # ----------------------------------------------------- Main Handler, package lonwishlist
1490: sub handler {
1491: my ($r) = @_;
1492: &Apache::loncommon::content_type($r,'text/html');
1493: $r->send_http_header;
1494:
1495: if (&getWishlist() ne 'error') {
1496: # get wishlist entries from user-data db-file and build a tree out of these entries
1497: %TreeHash = &getWishlist();
1498: $root = &Tree::HashToTree();
1499: @childrenRt = $root->children();
1500:
1501: # greate a new entry
1502: if ($env{'form.title'}) {
1503: &newEntry($env{'form.title'}, $env{'form.path'}, $env{'form.note'});
1504: }
1505:
1506: # get unprocessed_cgi (i.e. marked entries, mode ...)
1507: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['action','mark','markedToMove','mode','newtitle','note']);
1508:
1509: # change the order of entries within a level, that means sorting the entries
1510: my $changeOrder = 0;
1511: if (defined $env{'form.sel'}) {
1512: my @sel = &Apache::loncommon::get_env_multiple('form.sel');
1513: my $indexNode;
1514: my $at;
1515: for (my $s=0; $s<($#sel+1); $s++) {
1516: if ($sel[$s] ne '') {
1517: $indexNode = $s;
1518: $at = $sel[$s]-1;
1519: }
1520: }
1521: if ($at ne '') {
1522: $changeOrder = 1;
1523: &sortEntries($indexNode,$at);
1524: &saveChanges();
1525: }
1526: }
1527:
1528: # get all marked (checkboxes) entries
1529: my @marked = ();
1530: if (defined $env{'form.mark'}) {
1531: @marked = &Apache::loncommon::get_env_multiple('form.mark');
1532: }
1533:
1534: # move entries from one folder to another
1535: if (defined $env{'form.markedToMove'}) {
1536: my $markedToMove = $env{'form.markedToMove'};
1537: my @ToMove = split(/\,/,$markedToMove);
1538: my $moveTo = $env{'form.mark'};
1539: if (defined $moveTo){
1540: &moveEntries(\@ToMove,$moveTo);
1541: &saveChanges();
1542: }
1543: $changeOrder = 1;
1544:
1545: }
1546:
1547: # delete entries
1548: if ($env{'form.action'} eq 'delete') {
1549: &deleteEntries(\@marked);
1550: }
1551:
1552:
1553: # get all titles and notes and save them
1554: # only save, if user wants to save changes
1555: # do not save, when current action is 'delete' or 'sort' or 'move'
1556: my @newTitles = ();
1557: my @newPaths = ();
1558: my @newNotes = ();
1559: if ((defined $env{'form.newtitle'} || defined $env{'form.newpath'} || defined $env{'form.newnote'})
1560: && ($env{'form.action'} ne 'noSave') && ($env{'form.action'} ne 'delete') && !$changeOrder) {
1561: @newTitles = &Apache::loncommon::get_env_multiple('form.newtitle');
1562: @newPaths = &Apache::loncommon::get_env_multiple('form.newpath');
1563: @newNotes = &Apache::loncommon::get_env_multiple('form.newnote');
1564: my $node = 0;
1565: foreach my $t (@newTitles) {
1566: &setNewTitle($node, $t);
1567: $node++;
1568: }
1569: $node = 0;
1570: my $path = 0;
1571: for (my $i = 0; $i < ($#newTitles+1); $i++ ) {
1572: if (&setNewPath($node, $newPaths[$path])) {
1573: $path++;
1574: }
1575: $node++;
1576: }
1577: $node = 0;
1578: foreach my $n (@newNotes) {
1579: &setNewNote($node, $n);
1580: $node++;
1581: }
1582: &saveChanges();
1583: }
1584:
1585: # Create HTML-markup
1586: my $page;
1587: if ($env{'form.mode'} eq 'edit') {
1588: $page = &makePage("edit");
1589: }
1590: elsif ($env{'form.mode'} eq 'move') {
1591: $page = &makePage("move", \@marked);
1592: }
1593: elsif ($env{'form.mode'} eq 'import') {
1594: $page = &makePageImport();
1595: }
1596: elsif ($env{'form.mode'} eq 'set') {
1597: $page = &makePageSet();
1598: }
1599: else {
1600: $page = &makePage("view");
1601: }
1602: @marked = ();
1603: $r->print($page);
1604: }
1605: # An error occured, print an error-page
1606: else {
1607: my $errorPage = &makeErrorPage();
1608: $r->print($errorPage);
1609: }
1610: return OK;
1611: }
1612:
1613: # ----------------------------------------------------- package Tree
1614: # Extend CPAN-Module Tree by function like 'moveNode' or 'deleteNode'
1615: package Tree;
1616:
1617: # returns the node with a given index from a list of nodes
1618: sub getNodeByIndex {
1619: my $index = shift;
1620: my $nodes = shift;
1621: my $found;
1622:
1623: for my $n (@$nodes) {
1624: my $curIndex = $n->value()->nindex();
1625: if ($n->value()->nindex() == $index) {
1626: $found = $n;
1627: }
1628: }
1629: return $found;
1630: }
1631:
1632: # moves a given node to a new parent or change the position from a node
1633: # within its siblings (sorting)
1634: sub moveNode {
1635: my $node = shift;
1636: my $at = shift;
1637: my $newParent = shift;
1638:
1639:
1640: if (!$newParent) {
1641: $newParent = $node->parent();
1642: }
1643:
1644: $node->parent()->remove_child($node);
1645:
1646: if (defined $at) {
1647: $newParent->add_child({at => $at},$node);
1648: }
1649: else {
1650: $newParent->add_child($node);
1651: }
1652:
1653: # updating root's children
1654: @childrenRt = $root->children();
1655: }
1656:
1657: # removes a given node
1658: sub removeNode() {
1659: my $node = shift;
1660: my @children = $node->children();
1661:
1662: if ($#children >= 0) {
1663: foreach my $c (@children) {
1664: &removeNode($c);
1665: }
1666: }
1667: $node->parent()->remove_child($node);
1668:
1669: # updating root's children
1670: @childrenRt = $root->children();
1671: }
1672:
1673:
1674: # set an index for every node in the tree, beginning with 0
1675: my $count = 0;
1676: sub TreeIndex {
1677: my $children = shift;
1678:
1679: foreach my $n (@$children) {
1680: my @children = $n->children();
1681: $n->value()->nindex($count);$count++;
1682:
1683: if ($#children>=0) {
1684: &TreeIndex(\@children);
1685: }
1686: }
1687: }
1688:
1689: # reset index counter
1690: sub setCountZero {
1691: $count = 0;
1692: }
1693:
1694:
1695: # convert the tree to a hash
1696: # each node is one hash-entry
1697: # keys are the indices, values are all other attributes
1698: # (containing tile, path, note, date and indices for all direct children)
1699: # except for root: the key is root and values are
1700: # just the indices of root's children
1701: sub RootToHash {
1702: my $childrenRt = shift;
1703: my @indexarr = ();
1704:
1705: foreach my $c (@$childrenRt) {
1706: push (@indexarr, $c->value()->nindex());
1707: }
1708: $TreeToHash{'root'} = [@indexarr];
1709: }
1710:
1711: sub TreeToHash {
1712: my $childrenRt = shift;
1713:
1714: foreach my $n (@$childrenRt) {
1715: my @arrtmp = ();
1716: $arrtmp[0] = $n->value()->title();
1717: $arrtmp[1] = $n->value()->path();
1718: $arrtmp[2] = $n->value()->note();
1719: $arrtmp[3] = $n->value()->date();
1720: my @childrenRt = $n->children();
1721: my $co = 4;
1722: foreach my $c (@childrenRt) {
1723: my $i = $c->value()->nindex();
1724: $arrtmp[$co] = $i;
1725: $co++;
1726: }
1727: $TreeToHash{$n->value()->nindex} = [ @arrtmp];
1728: if ($#childrenRt>=0) {
1729: &TreeToHash(\@childrenRt);
1730: }
1731: }
1732: }
1733:
1734:
1735: # convert the hash to a tree
1736: # build a tree-object for each entry in the hash
1737: # afterwards call &buildTree to connect the tree-objects
1738: sub HashToTree {
1739: my @TreeNodes = ();
1740: my $root;
1741:
1742: foreach my $key (keys %TreeHash) {
1743: if ($key eq 'root') {
1744: $root = Tree->new("root");
1745: }
1746: else {
1747: my @attributes = @{ $TreeHash{$key} };
1748: my $tmpNode;
1749: $tmpNode = Tree->new(Entry->new(title=>$attributes[0],
1750: path=>$attributes[1],
1751: note=>$attributes[2],
1752: date=>$attributes[3],
1753: nindex=>$key));
1754: push(@TreeNodes, $tmpNode);
1755: # shift all attributes except for
1756: # the indices representing the children of a node
1757: shift(@attributes);
1758: shift(@attributes);
1759: shift(@attributes);
1760: shift(@attributes);
1761: $TreeHash{$key} = [ @attributes ];
1762: }
1763: }
1764: # if there are nodes, build up the tree-structure
1765: if (defined $TreeHash{'root'} && $TreeHash{'root'} ne '') {
1766: my @childrenRtIn = @{ $TreeHash{'root'} };
1767: &buildTree(\$root, \@childrenRtIn,\@TreeNodes,\%TreeHash);
1768: }
1769: return $root;
1770: }
1771:
1772:
1773: # join the nodes to a tree
1774: sub buildTree {
1775: my ($node, $childrenIn, $TreeNodes, $TreeHash) = @_;
1776: bless($node, 'Tree');
1777: foreach my $c (@$childrenIn) {
1778: my $tmpNode = &getNodeByIndex($c,$TreeNodes);
1779: $$node->add_child($tmpNode);
1780: my @childrenIn = @{ $$TreeHash{$tmpNode->value()->nindex()} };
1781: &buildTree(\$tmpNode,\@childrenIn,$TreeNodes,$TreeHash);
1782: }
1783:
1784: }
1785:
1786:
1787: # ----------------------------------------------------- package Entry
1788: # package that defines the entrys a wishlist could have
1789: # i.e. folders and links
1790: package Entry;
1791:
1792: # constructor
1793: sub new {
1794: my $invocant = shift;
1795: my $class = ref($invocant) || $invocant;
1796: my $self = { @_ }; #set attributes
1797: bless($self, $class);
1798: return $self;
1799: }
1800:
1801: # getter and setter
1802: sub title {
1803: my $self = shift;
1804: if ( @_ ) { $self->{title} = shift}
1805: return $self->{title};
1806: }
1807:
1808: sub date {
1809: my $self = shift;
1810: if ( @_ ) { $self->{date} = shift}
1811: return $self->{date};
1812: }
1813:
1814: sub note {
1815: my $self = shift;
1816: if ( @_ ) { $self->{note} = shift}
1817: return $self->{note};
1818: }
1819:
1820: sub path {
1821: my $self = shift;
1822: if ( @_ ) { $self->{path} = shift}
1823: return $self->{path};
1824: }
1825:
1826: sub nindex {
1827: my $self = shift;
1828: if ( @_ ) { $self->{nindex} = shift}
1829: return $self->{nindex};
1830: }
1831:
1832:
1833: 1;
1834: __END__
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